Area
Code | Prefix | City/Switch Name
(Click for city search) | State/Prov.
Area Map | Telephone Company
Web link | Telco
Type | More
Info |
|---|
| 617 | 200 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 201 | CAMBRIDGE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 202 | BRIGHTON | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 203 | EVERETT | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 204 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 205 | BOSTON | Massachusetts | NORFOLK COUNTY INTERNET, INC. | CLEC | More |
| 617 | 206 | BRIGHTON | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 208 | BRIGHTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 209 | BELMONT | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 210 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 211 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 212 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 213 | NEWTON | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 214 | HYDE PARK | Massachusetts | NEUTRAL TANDEM-MASSACHUSETTS, LLC - MA | | More |
| 617 | 215 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 216 | CAMBRIDGE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 217 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 218 | CAMBRIDGE | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 219 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 220 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 221 | QUINCY | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 617 | 222 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 223 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 224 | BOSTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 225 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 226 | BOSTON | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 617 | 227 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 228 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 229 | CAMBRIDGE | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 230 | CAMBRIDGE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 231 | WATERTOWN | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 232 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 233 | CAMBRIDGE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 234 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 235 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 236 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 237 | QUINCY | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 238 | ROXBURY | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 239 | BOSTON | Massachusetts | AT&T LOCAL | CLEC | More |
| 617 | 240 | SAUGUS | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 241 | CHARLESTN | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 242 | CHARLESTN | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 243 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 244 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 245 | CAMBRIDGE | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 246 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 247 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 248 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 249 | QUINCY | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 250 | CAMBRIDGE | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 251 | CAMBRIDGE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 252 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 253 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 254 | BRIGHTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 255 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 256 | CAMBRIDGE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 257 | SAUGUS | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 258 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 259 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 260 | | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 261 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 262 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 263 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 264 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 265 | DORCHESTER | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 266 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 267 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 268 | SO BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 269 | SO BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 270 | CHELSEA | Massachusetts | METRO PCS, INC. | | More |
| 617 | 271 | EASTBOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 272 | HYDE PARK | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 273 | MILTON | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 274 | BROOKLINE | Massachusetts | PAETEC COMMUNICATIONS, INC. | CLEC | More |
| 617 | 275 | BOSTON | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 276 | HYDE PARK | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 277 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 278 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 279 | BOSTON | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 280 | CAMBRIDGE | Massachusetts | NEP, LLC | | More |
| 617 | 281 | WALTHAM | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 282 | DORCHESTER | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 283 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 284 | SOMERVILLE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 285 | SAUGUS | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 286 | CHARLESTN | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 617 | 287 | DORCHESTER | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 288 | DORCHESTER | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 289 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 290 | CAMBRIDGE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 291 | MILTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 292 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 293 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 295 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 296 | MILTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 297 | DORCHESTER | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 298 | MILTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 299 | CAMBRIDGE | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 300 | CAMBRIDGE | Massachusetts | AT&T LOCAL | CLEC | More |
| 617 | 301 | CAMBRIDGE | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 302 | QUINCY | Massachusetts | YMAX COMMUNICATIONS CORP. - MA | | More |
| 617 | 303 | BOSTON | Massachusetts | FREEDOM RING COMMUNICATIONS, LLC | CLEC | More |
| 617 | 304 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 305 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 306 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 307 | SO BOSTON | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 308 | CAMBRIDGE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 309 | BOSTON | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 617 | 310 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 311 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 312 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 313 | MILTON | Massachusetts | BROADVIEW NETWORKS, INC. - MA | | More |
| 617 | 314 | BOSTON | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 315 | SO BOSTON | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 316 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 317 | QUINCY | Massachusetts | NORFOLK COUNTY INTERNET, INC. | CLEC | More |
| 617 | 318 | ROXBURY | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 319 | BRIGHTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 320 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 321 | WATERTOWN | Massachusetts | BROADVIEW NETWORKS, INC. - MA | | More |
| 617 | 323 | JAMAICA PL | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 324 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 325 | JAMAICA PL | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 326 | DORCHESTER | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 327 | JAMAICA PL | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 328 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 329 | WINTHROP | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 330 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 331 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 332 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 333 | HYDE PARK | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 334 | SO BOSTON | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 335 | CAMBRIDGE | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 336 | CHELSEA | Massachusetts | PAETEC COMMUNICATIONS, INC. | CLEC | More |
| 617 | 337 | CHARLESTN | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 338 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 339 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 340 | NEWTON | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 617 | 341 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 342 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 343 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 344 | JAMAICA PL | Massachusetts | XO MASSACHUSETTS, INC. | CLEC | More |
| 617 | 345 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 346 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 347 | QUINCY | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 348 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 349 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 350 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 351 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 352 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 353 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 354 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 355 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 356 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 357 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 358 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 359 | CAMBRIDGE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 360 | HYDE PARK | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 361 | HYDE PARK | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 362 | HYDE PARK | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 363 | JAMAICA PL | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 364 | HYDE PARK | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 365 | DEDHAM | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 366 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 367 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 368 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 369 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 370 | CHELSEA | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 371 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 372 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 373 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 374 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 375 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 376 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 377 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 378 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 379 | DORCHESTER | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 380 | CHARLESTN | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 381 | EVERETT | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 382 | EVERETT | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 383 | BROOKLINE | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 384 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 385 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 386 | CAMBRIDGE | Massachusetts | AT&T LOCAL | CLEC | More |
| 617 | 387 | EVERETT | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 388 | CAMBRIDGE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 389 | EVERETT | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 390 | JAMAICA PL | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 391 | CAMBRIDGE | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 617 | 392 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 393 | WATERTOWN | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 394 | EVERETT | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 395 | CAMBRIDGE | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 396 | BROOKLINE | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 397 | CAMBRIDGE | Massachusetts | AT&T LOCAL | CLEC | More |
| 617 | 398 | CHARLESTN | Massachusetts | AT&T LOCAL | CLEC | More |
| 617 | 399 | BOSTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 400 | ROXBURY | Massachusetts | NORFOLK COUNTY INTERNET, INC. | CLEC | More |
| 617 | 401 | CAMBRIDGE | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 402 | WATERTOWN | Massachusetts | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | | More |
| 617 | 403 | BRIGHTON | Massachusetts | AMERICAN MESSAGING (AM), INC. | | More |
| 617 | 404 | BELMONT | Massachusetts | NEUTRAL TANDEM-MASSACHUSETTS, LLC - MA | | More |
| 617 | 405 | QUINCY | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 406 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 407 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 408 | HYDE PARK | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 409 | CHELSEA | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 617 | 410 | EVERETT | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 617 | 411 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 412 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 413 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 414 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 415 | BRIGHTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 416 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 417 | CAMBRIDGE | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 418 | EASTBOSTON | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 419 | BOSTON | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 420 | EVERETT | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 421 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 422 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 423 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 424 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 425 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 426 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 427 | ROXBURY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 428 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 429 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 430 | CAMBRIDGE | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 431 | NEWTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 432 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 433 | MILTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 434 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 435 | JAMAICA PL | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 436 | DORCHESTER | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 437 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 438 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 439 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 440 | SOMERVILLE | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 441 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 442 | ROXBURY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 443 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 444 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 445 | ROXBURY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 446 | JAMAICA PL | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 447 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 448 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 449 | BOSTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 450 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 451 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 452 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 453 | CAMBRIDGE | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 454 | NEWTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 455 | EASTBOSTON | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 456 | BOSTON | Massachusetts | BROADVIEW NETWORKS, INC. - MA | | More |
| 617 | 457 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 458 | WATERTOWN | Massachusetts | METRO PCS, INC. | | More |
| 617 | 459 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 460 | CAMBRIDGE | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 461 | CHELSEA | Massachusetts | METRO PCS, INC. | | More |
| 617 | 462 | DEDHAM | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 463 | SO BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 464 | SO BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 465 | CAMBRIDGE | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 467 | NEWTON | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 468 | CAMBRIDGE | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 469 | JAMAICA PL | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 470 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 471 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 472 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 473 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 474 | DORCHESTER | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 475 | CAMBRIDGE | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 476 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 477 | JAMAICA PL | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 478 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 479 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 480 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 482 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 483 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 484 | BELMONT | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 485 | NEWTON | Massachusetts | NEUTRAL TANDEM-MASSACHUSETTS, LLC - MA | | More |
| 617 | 486 | BELMONT | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 487 | BROOKLINE | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 488 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 489 | BELMONT | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 490 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 491 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 492 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 493 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 494 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 495 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 496 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 497 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 498 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 499 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 500 | CAMBRIDGE | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 501 | SOMERVILLE | Massachusetts | METRO PCS, INC. | | More |
| 617 | 502 | BOSTON | Massachusetts | PAETEC COMMUNICATIONS, INC. | CLEC | More |
| 617 | 503 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 504 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 505 | BROOKLINE | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 506 | DORCHESTER | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 507 | BOSTON | Massachusetts | XO MASSACHUSETTS, INC. | CLEC | More |
| 617 | 508 | | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 509 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 510 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 511 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 512 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 513 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 514 | DORCHESTER | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 515 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 516 | ROXBURY | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 517 | BOSTON | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 518 | BOSTON | Massachusetts | NEUTRAL TANDEM-MASSACHUSETTS, LLC - MA | | More |
| 617 | 519 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 520 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 521 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 522 | JAMAICA PL | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 523 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 524 | JAMAICA PL | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 525 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 526 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 527 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 528 | CAMBRIDGE | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 529 | SAUGUS | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 530 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 531 | BOSTON | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 532 | BOSTON | Massachusetts | PAETEC COMMUNICATIONS, INC. | CLEC | More |
| 617 | 533 | DORCHESTER | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 534 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 535 | BOSTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 536 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 537 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 538 | WALTHAM | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 539 | WINTHROP | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 540 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 541 | ROXBURY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 542 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 543 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 544 | EVERETT | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 545 | EVERETT | Massachusetts | AT&T LOCAL | CLEC | More |
| 617 | 546 | NEWTON | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 547 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 548 | SAUGUS | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 549 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 550 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 551 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 552 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 553 | JAMAICA PL | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 554 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 555 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 556 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 557 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 558 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 559 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 560 | BRIGHTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 561 | EASTBOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 562 | BRIGHTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 563 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 564 | NEWTON | Massachusetts | PAETEC COMMUNICATIONS, INC. | CLEC | More |
| 617 | 565 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 566 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 567 | EASTBOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 568 | EASTBOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 569 | EASTBOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 570 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 571 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 572 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 573 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 574 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 575 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 576 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 577 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 578 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 579 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 580 | CHARLESTN | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 581 | NEWTON | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 582 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 583 | CAMBRIDGE | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 584 | NEWTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 585 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 586 | BRIGHTON | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 587 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 588 | CAMBRIDGE | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 589 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 590 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 591 | SOMERVILLE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 592 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 593 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 594 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 595 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 596 | SO BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 597 | NEWTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 598 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 599 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 600 | WATERTOWN | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 601 | EVERETT | Massachusetts | NORFOLK COUNTY INTERNET, INC. | CLEC | More |
| 617 | 602 | ROXBURY | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 603 | BOSTON | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 604 | HYDE PARK | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 605 | MALDEN | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 606 | ROXBURY | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 607 | WATERTOWN | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 608 | BROOKLINE | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 609 | NEWTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 610 | NEWTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 611 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 612 | WATERTOWN | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 613 | CAMBRIDGE | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 614 | NEWTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 615 | MILTON | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 616 | SOMERVILLE | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 617 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 618 | NEWTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 619 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 620 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 621 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 622 | SO BOSTON | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 623 | SOMERVILLE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 624 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 625 | SOMERVILLE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 626 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 627 | SOMERVILLE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 628 | SOMERVILLE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 629 | SOMERVILLE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 630 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 631 | NEWTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 632 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 633 | WALTHAM | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 634 | EASTBOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 635 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 636 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 637 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 638 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 639 | QUINCY | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 640 | DEDHAM | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 641 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 642 | CAMBRIDGE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 643 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 644 | NEWTON | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 645 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 646 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 647 | CAMBRIDGE | Massachusetts | AMERICAN MESSAGING (AM), INC. | | More |
| 617 | 648 | BOSTON | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 649 | CAMBRIDGE | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 650 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 651 | BROOKLINE | Massachusetts | PAETEC COMMUNICATIONS, INC. | CLEC | More |
| 617 | 652 | ROXBURY | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 653 | QUINCY | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 654 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 655 | NEWTON | Massachusetts | NEUTRAL TANDEM-MASSACHUSETTS, LLC - MA | | More |
| 617 | 656 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 657 | QUINCY | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 658 | NEWTON | Massachusetts | PAETEC COMMUNICATIONS, INC. | CLEC | More |
| 617 | 659 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 660 | CHELSEA | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 661 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 662 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 663 | NEWTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 664 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 665 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 666 | SOMERVILLE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 667 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 668 | WATERTOWN | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 669 | CHARLESTN | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 670 | BOSTON | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 671 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 672 | BELMONT | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 673 | WATERTOWN | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 675 | HYDE PARK | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 676 | JAMAICA PL | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 677 | BROOKLINE | Massachusetts | NORFOLK COUNTY INTERNET, INC. | CLEC | More |
| 617 | 678 | NEWTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 679 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 680 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 681 | CHARLESTN | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 682 | CAMBRIDGE | Massachusetts | YMAX COMMUNICATIONS CORP. - MA | | More |
| 617 | 683 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 684 | SOMERVILLE | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 685 | CAMBRIDGE | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 686 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 687 | QUINCY | Massachusetts | XO MASSACHUSETTS, INC. | CLEC | More |
| 617 | 688 | KINGSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 689 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 690 | MILTON | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 691 | QUINCY | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 692 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 693 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 694 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 695 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 696 | MILTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 697 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 698 | MILTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 699 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 700 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 701 | SO BOSTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 702 | SOMERVILLE | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 703 | CAMBRIDGE | Massachusetts | AMERICAN MESSAGING (AM), INC. | | More |
| 617 | 704 | DORCHESTER | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 705 | HYDE PARK | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 706 | QUINCY | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 707 | DORCHESTER | Massachusetts | NORFOLK COUNTY INTERNET, INC. | CLEC | More |
| 617 | 708 | ROXBURY | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 710 | CAMBRIDGE | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 711 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 712 | CHARLESTN | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 713 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 714 | CAMBRIDGE | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 715 | CAMBRIDGE | Massachusetts | PAETEC COMMUNICATIONS, INC. | CLEC | More |
| 617 | 716 | EASTBOSTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 717 | BOSTON | Massachusetts | AT&T LOCAL | CLEC | More |
| 617 | 718 | SOMERVILLE | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 719 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 720 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 721 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 722 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 723 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 724 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 725 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 726 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 727 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 728 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 729 | QUINCY | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 730 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 731 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 732 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 733 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 734 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 735 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 737 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 738 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 739 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 740 | DORCHESTER | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 741 | SOMERVILLE | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 742 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 743 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 745 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 746 | BRIGHTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 747 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 748 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 749 | ROXBURY | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 750 | QUINCY | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 751 | BROOKLINE | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 752 | SO BOSTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 753 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 754 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 755 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 756 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 757 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 758 | CAMBRIDGE | Massachusetts | BROADVIEW NETWORKS, INC. - MA | | More |
| 617 | 759 | DEDHAM | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 760 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 761 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 762 | NEWTON | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 763 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 765 | SO BOSTON | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 766 | SO BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 767 | SOMERVILLE | Massachusetts | METRO PCS, INC. | | More |
| 617 | 768 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 769 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 770 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 771 | MALDEN | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 772 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 773 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 774 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 775 | NEWTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 776 | SOMERVILLE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 777 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 778 | BOSTON | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 779 | BRIGHTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 780 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 782 | BRIGHTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 783 | BRIGHTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 784 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 785 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 786 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 787 | BRIGHTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 788 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 789 | BRIGHTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 790 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 791 | SAUGUS | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 792 | ROXBURY | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 793 | QUINCY | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 794 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 795 | NEWTON | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 796 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 797 | SAUGUS | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 798 | CAMBRIDGE | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 799 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 800 | CAMBRIDGE | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 801 | QUINCY | Massachusetts | BROADVIEW NETWORKS, INC. - MA | | More |
| 617 | 802 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 803 | CAMBRIDGE | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 804 | QUINCY | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 806 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 807 | BOSTON | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 811 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 812 | CAMBRIDGE | Massachusetts | NEUTRAL TANDEM-MASSACHUSETTS, LLC - MA | | More |
| 617 | 814 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 816 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 817 | BRIGHTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 818 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 819 | CHELSEA | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 820 | BOSTON | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 821 | CAMBRIDGE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 822 | DORCHESTER | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 823 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 824 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 825 | DORCHESTER | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 826 | BELMONT | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 827 | WEYMOUTH | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 828 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 831 | NEWTON | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 832 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 833 | HYDE PARK | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 834 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 835 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 836 | CAMBRIDGE | Massachusetts | NORFOLK COUNTY INTERNET, INC. | CLEC | More |
| 617 | 837 | QUINCY | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 838 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 839 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 840 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 841 | WINTHROP | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 842 | QUINCY | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 843 | EVERETT | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 844 | CAMBRIDGE | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 617 | 845 | QUINCY | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 846 | WINTHROP | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 847 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 848 | BOSTON | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 849 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 850 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 851 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 852 | CAMBRIDGE | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 853 | NEWTON | Massachusetts | NORFOLK COUNTY INTERNET, INC. | CLEC | More |
| 617 | 854 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 855 | BELMONT | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 856 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 858 | CAMBRIDGE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 859 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 860 | BROOKLINE | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 861 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 862 | NEWTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 863 | SOMERVILLE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 864 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 865 | BOSTON | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 866 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 867 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 868 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 869 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 870 | BRIGHTON | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 871 | CAMBRIDGE | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 617 | 872 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 873 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 874 | EASTBOSTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 875 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 876 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 877 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 878 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 879 | BROOKLINE | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 880 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 881 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 882 | NEWTON | Massachusetts | BANDWIDTH.COM CLEC, LLC - MA | | More |
| 617 | 883 | BELMONT | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 884 | CHELSEA | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 886 | CHARLESTN | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 887 | CHELSEA | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 888 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 889 | CHELSEA | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 890 | QUINCY | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 891 | BRIGHTON | Massachusetts | NORFOLK COUNTY INTERNET, INC. | CLEC | More |
| 617 | 892 | BOSTON | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 893 | NEWTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 894 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 895 | EASTBOSTON | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 896 | BOSTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 897 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 898 | MILTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 899 | CAMBRIDGE | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 900 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 901 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 902 | CAMBRIDGE | Massachusetts | BROADVIEW NETWORKS, INC. - MA | | More |
| 617 | 903 | BRIGHTON | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 617 | 904 | BOSTON | Massachusetts | BROADVIEW NETWORKS, INC. - MA | | More |
| 617 | 905 | DORCHESTER | Massachusetts | METRO PCS, INC. | | More |
| 617 | 906 | BROOKLINE | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 907 | MILTON | Massachusetts | NORFOLK COUNTY INTERNET, INC. | CLEC | More |
| 617 | 908 | BOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 909 | CAMBRIDGE | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 911 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 912 | BOSTON | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 913 | EASTBOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 914 | CAMBRIDGE | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 915 | MILTON | Massachusetts | NEUTRAL TANDEM-MASSACHUSETTS, LLC - MA | | More |
| 617 | 917 | EVERETT | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 918 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 919 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 920 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 921 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 922 | MILTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 923 | WATERTOWN | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 924 | WATERTOWN | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 925 | BRIGHTON | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 926 | WATERTOWN | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 927 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 928 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 929 | DORCHESTER | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 930 | WALTHAM | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 931 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 932 | BELMONT | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 933 | BOSTON | Massachusetts | PAETEC COMMUNICATIONS, INC. | CLEC | More |
| 617 | 934 | QUINCY | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 935 | BROOKLINE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 936 | BOSTON | Massachusetts | PAETEC COMMUNICATIONS, INC. | CLEC | More |
| 617 | 937 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 938 | BOSTON | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 939 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 940 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 941 | SOMERVILLE | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 942 | JAMAICA PL | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 617 | 943 | BOSTON | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 946 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 947 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 617 | 948 | BOSTON | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 949 | CAMBRIDGE | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 950 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 951 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 952 | CHARLESTN | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 953 | BROOKLINE | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 954 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 955 | CAMBRIDGE | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 956 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 957 | MELROSE | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 958 | CHELSEA | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC.-MA | CLEC | More |
| 617 | 959 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 960 | BOSTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 961 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 962 | WALTHAM | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 963 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 964 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 965 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 966 | WALTHAM | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 967 | WALTHAM | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 968 | WALTHAM | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 969 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 970 | EASTBOSTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 971 | JAMAICA PL | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 972 | WATERTOWN | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 973 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 974 | WALTHAM | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 617 | 975 | BROOKLINE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 976 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 977 | BELMONT | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 978 | | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 979 | DORCHESTER | Massachusetts | PAETEC COMMUNICATIONS, INC. | CLEC | More |
| 617 | 980 | MILTON | Massachusetts | METRO PCS, INC. | | More |
| 617 | 981 | EASTBOSTON | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 982 | CHARLESTN | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 617 | 983 | JAMAICA PL | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 984 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 985 | QUINCY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 986 | BOSTON | Massachusetts | BROADVIEW NETWORKS, INC. - MA | | More |
| 617 | 987 | BRIGHTON | Massachusetts | RCN TELECOM SERVICES, INC. - MA | CLEC | More |
| 617 | 988 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 989 | ROXBURY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 990 | HYDE PARK | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 991 | BROOKLINE | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 992 | BROOKLINE | Massachusetts | MCI WORLDCOM COMMUNICATIONS, INC. - MA | CLEC | More |
| 617 | 993 | BELMONT | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 994 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 995 | CAMBRIDGE | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 617 | 996 | SOMERVILLE | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 997 | EASTBOSTON | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 617 | 998 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 617 | 999 | CAMBRIDGE | Massachusetts | AT&T LOCAL | CLEC | More |
|
