Area
Code | Prefix | City/Switch Name
(Click for city search) | State/Prov.
Area Map | Telephone Company
Web link | Telco
Type | More
Info |
|---|
| 201 | 221 | HACKENSACK | New Jersey | TELEPORT COMMUNICATIONS AMERICA, LLC - NJ | CAP | More |
| 202 | 221 | WSHNGTNZN1 | Virginia | ONVOY, LLC - DC | | More |
| 203 | 221 | WESTPORT | Connecticut | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | IND. TELCO | More |
| 204 | 221 | Winnipeg | Manitoba | Shaw Telecom Inc. | | More |
| 205 | 221 | JASPER | Alabama | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 206 | 221 | SEATTLE | Washington | QWEST CORPORATION | RBOC | More |
| 207 | 221 | PORTLAND | Maine | CHOICE ONE COMMUNICATIONS OF MAINE, INC. - ME | | More |
| 208 | 221 | POCATELLO | Idaho | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | WIRELESS PROV | More |
| 209 | 221 | TRACY | California | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | CLEC | More |
| 210 | 221 | SANANTONIO | Texas | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | CLEC | More |
| 212 | 221 | NWYRCYZN01 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 213 | 221 | LSAN DA 01 | California | ONVOY, LLC - CA | | More |
| 214 | 221 | DALLAS | Texas | SOUTHWESTERN BELL | RBOC | More |
| 215 | 221 | PHLDLPHZN1 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 216 | 221 | CLEVELAND | Ohio | OHIO BELL TEL CO | RBOC | More |
| 217 | 221 | QUINCY | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 218 | 221 | DULUTH | Minnesota | CENTURYLINK COMMUNICATIONS, LLC | | More |
| 219 | 221 | MICHIGANCY | Indiana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN | WIRELESS PROV | More |
| 220 | 221 | MARION | Ohio | RADIANTIQ LLC | | More |
| 223 | 221 | LANCASTER | Pennsylvania | PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA | | More |
| 224 | 221 | NORTHBROOK | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 225 | 221 | BATONROUGE | Louisiana | VOICESTREAM GSM I, LLC | | More |
| 226 | 221 | Windsor | Ontario | TELUS Integrated Communications | CLEC | More |
| 227 | 221 | SMITHSBURG | Maryland | COMMIO, LLC | | More |
| 229 | 221 | THOMASVL | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | WIRELESS PROV | More |
| 231 | 221 | TRAVERSE CITY | Michigan | CENTURYLINK COMMUNICATIONS, LLC | | More |
| 234 | 221 | NAVARRE | Ohio | SUPER-NET, INC. - OH | | More |
| 239 | 221 | BONITA SPG | Florida | LEVEL 3 COMMUNICATIONS, LLC - FL | CLEC | More |
| 240 | 221 | WSNGTNZN11 | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 248 | 221 | PONTIAC | Michigan | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | | More |
| 249 | 221 | Alliston | Ontario | TELUS Integrated Communications | CLEC | More |
| 250 | 221 | GANGES | British Columbia | TELUS Mobility | WIRELESS PROV | More |
| 251 | 221 | MOBILE | Alabama | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 252 | 221 | WELCH | North Carolina | CAROLINA TEL AND TEL CO., LLC DBA CENTURYLINK | IND. TELCO | More |
| 253 | 221 | TACOMAWVLY | Washington | METROPCS, INC. | | More |
| 254 | 221 | HILLSBORO | Texas | LEVEL 3 COMMUNICATIONS, LLC - TX | CLEC | More |
| 256 | 221 | DECATUR | Alabama | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | WIRELESS PROV | More |
| 260 | 221 | LIGONIER | Indiana | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 262 | 221 | RACINE | Wisconsin | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 267 | 221 | DOYLESTOWN | Pennsylvania | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | WIRELESS PROV | More |
| 269 | 221 | STURGIS | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
| 270 | 221 | RUSSELLVL | Kentucky | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 272 | 221 | POTTSVILLE | Pennsylvania | CORE COMMUNICATIONS, INC. - PA | | More |
| 276 | 221 | MOUTHWILSN | Virginia | LEVEL 3 COMMUNICATIONS, LLC - VA | CLEC | More |
| 279 | 221 | SCRM MAIN | California | PAETEC COMMUNICATIONS, INC. - CA | CLEC | More |
| 281 | 221 | HOUSTON | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 283 | 221 | LEBANON | Ohio | ONVOY, LLC - OH | | More |
| 289 | 221 | AURORA | Ontario | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 301 | 221 | WSHNGTNZN2 | Maryland | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 302 | 221 | NEW CASTLE | Delaware | CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - DE | CLEC | More |
| 303 | 221 | DENVER | Colorado | QWEST CORPORATION | RBOC | More |
| 304 | 221 | WHELNGZON5 | West Virginia | GATEWAY TELECOM LLC DBA STRATUSWAVE COMM LLC WV | CLEC | More |
| 305 | 221 | MIAMI | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 306 | 221 | SASKATOON | Saskatchewan | SaskTel Mobility | | More |
| 307 | 221 | CHEYENNE | Wyoming | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 308 | 221 | NO PLATTE | Nebraska | LEVEL 3 COMMUNICATIONS, LLC - NE | | More |
| 309 | 221 | GALESBURG | Illinois | UNITED STATES CELLULAR - IL | WIRELESS PROV | More |
| 310 | 221 | SAN PEDRO | California | PACIFIC BELL | RBOC | More |
| 312 | 221 | CHICGOZN01 | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 313 | 221 | DETROITZN1 | Michigan | MICHIGAN BELL TEL CO | RBOC | More |
| 314 | 221 | KIRKWOOD | Missouri | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 315 | 221 | WATERTOWN | New York | TC SYSTEMS, INC. - NY | CAP | More |
| 316 | 221 | WICHITA | Kansas | LEVEL 3 COMMUNICATIONS, LLC - KS | | More |
| 317 | 221 | INDIANAPLS | Indiana | INDIANA BELL TEL CO INC | RBOC | More |
| 318 | 221 | SHREVEPORT | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 319 | 221 | CEDAR RPDS | Iowa | QWEST CORPORATION | RBOC | More |
| 320 | 221 | LITCHFIELD | Minnesota | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | | More |
| 321 | 221 | WINTERGRDN | Florida | PAETEC COMMUNICATIONS, INC. - FL | CLEC | More |
| 323 | 221 | LSAN DA 04 | California | PACIFIC BELL | RBOC | More |
| 325 | 221 | SAN ANGELO | Texas | CENTURYLINK COMMUNICATIONS, LLC | | More |
| 329 | 221 | POUGHKEPSI | New York | CALLWORKS CORPORATION | | More |
| 330 | 221 | KENT | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 331 | 221 | ELMHURST | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 332 | 221 | NWYRCYZN01 | New York | INTRADO COMMUNICATIONS, LLC | | More |
| 334 | 221 | MONTGOMERY | Alabama | POWERTEL BIRMINGHAM LICENSES, INC. | WIRELESS PROV | More |
| 336 | 221 | BURLINGTON | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 337 | 221 | CROWLEY | Louisiana | WINDSTREAM NUVOX, INC. | CLEC | More |
| 339 | 221 | MEDFORD | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 341 | 221 | HAYWARD | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 346 | 221 | HOUSTON | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 347 | 221 | NWYRCYZN06 | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 351 | 221 | LOWELL | Massachusetts | COMMIO, LLC | | More |
| 352 | 221 | CHIEFLAND | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 360 | 221 | SO WHIDBEY | Washington | WHIDBEY TEL. CO. | IND. TELCO | More |
| 361 | 221 | KINGSVILLE | Texas | SOUTHWESTERN BELL | RBOC | More |
| 364 | 221 | COLUMBUS | Kentucky | ONVOY SPECTRUM, LLC | | More |
| 380 | 221 | WJEFFERSON | Ohio | ONVOY, LLC - OH | | More |
| 385 | 221 | OREM | Utah | QWEST CORPORATION | RBOC | More |
| 386 | 221 | DEBARY | Florida | ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND | CLEC | More |
| 401 | 221 | PROVIDENCE | Rhode Island | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 402 | 221 | OMAHA | Nebraska | QWEST CORPORATION | RBOC | More |
| 403 | 221 | CALGARY | Alberta | TELUS | IND. TELCO | More |
| 404 | 221 | ATLANTA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 405 | 221 | HOLDENVL | Oklahoma | UNITED STATES CELLULAR - OK | WIRELESS PROV | More |
| 406 | 221 | BUTTE | Montana | AT&T - LOCAL | CLEC | More |
| 407 | 221 | SANFORD | Florida | METROPCS NETWORKS, LLC | | More |
| 408 | 221 | SNJS WEST | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 409 | 221 | ORANGE | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 410 | 221 | CAMBRIDGE | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 412 | 221 | PTGSBNZN13 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 413 | 221 | SPRINGFLD | Massachusetts | METROPCS, INC. | | More |
| 414 | 221 | MILWAUKZN1 | Wisconsin | WISCONSIN BELL INC | RBOC | More |
| 415 | 221 | SNFC MT-EV | California | PACIFIC BELL | RBOC | More |
| 416 | 221 | TORONTO | Ontario | Bell Canada | IND. TELCO | More |
| 417 | 221 | CLEVER | Missouri | WINDSTREAM NUVOX MISSOURI, LLC | CLEC | More |
| 418 | 221 | Saint-Georges-de-Be | Quebec | TELUS Quebec | IND. TELCO | More |
| 419 | 221 | LIMA | Ohio | UNITED TEL. CO. OF OHIO DBA CENTURYLINK | IND. TELCO | More |
| 423 | 221 | CHATTNOOGA | Tennessee | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 424 | 221 | CMTN GRDN | California | METROPCS NETWORKS, LLC | | More |
| 425 | 221 | BELLEVUE | Washington | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 430 | 221 | BUFFALO | Texas | VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW | | More |
| 432 | 221 | MIDLAND | Texas | SOUTHWESTERN BELL | RBOC | More |
| 434 | 221 | LYNCHBURG | Virginia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | WIRELESS PROV | More |
| 435 | 221 | BEAVER | Utah | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | WIRELESS PROV | More |
| 440 | 221 | WILLOUGHBY | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 442 | 221 | BENTON | California | BANDWIDTH.COM CLEC, LLC - CA | | More |
| 443 | 221 | ANNAPOLIS | Maryland | LEVEL 3 COMMUNICATIONS, LLC - MD | CLEC | More |
| 445 | 221 | PHLDLPHZN1 | Pennsylvania | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | WIRELESS PROV | More |
| 447 | 221 | WESTERVELT | Illinois | ONVOY, LLC | | More |
| 448 | 221 | PENSACOLA | Florida | HD CARRIER LLC | | More |
| 450 | 221 | St-Felix-de-Valois | Quebec | Videotron General Partnership | CLEC | More |
| 458 | 221 | EUGENE | Oregon | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | | More |
| 463 | 221 | INDIANAPLS | Indiana | METROPCS, INC. | | More |
| 464 | 221 | BERWYN | Illinois | ONVOY, LLC | | More |
| 469 | 221 | DALLAS | Texas | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | CAP | More |
| 470 | 221 | GRANTVILLE | Georgia | PEERLESS NETWORK OF GEORGIA, LLC - GA | | More |
| 472 | 221 | ROCKINGHAM | North Carolina | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 475 | 221 | BRANFORD | Connecticut | BANDWIDTH.COM CLEC, LLC - CT | | More |
| 478 | 221 | GRAY | Georgia | SOUTHERN COMMUNICATIONS SERVICES, INC. | WIRELESS PROV | More |
| 479 | 221 | FORT SMITH | Arkansas | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR | CAP | More |
| 480 | 221 | PHOENIX | Arizona | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 484 | 221 | ALLENTOWN | Pennsylvania | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | WIRELESS PROV | More |
| 501 | 221 | LITTLEROCK | Arkansas | SOUTHWESTERN BELL | RBOC | More |
| 502 | 221 | BEDFORD | Kentucky | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 503 | 221 | PORTLAND | Oregon | QWEST CORPORATION | RBOC | More |
| 504 | 221 | NEWORLEANS | Louisiana | VOICESTREAM GSM I, LLC | | More |
| 505 | 221 | ALBUQURQUE | New Mexico | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM | WIRELESS PROV | More |
| 506 | 221 | Florenceville | New Brunswick | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 507 | 221 | WINDOM | Minnesota | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 508 | 221 | NANTUCKET | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 509 | 221 | SPOKANE | Washington | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | IND. TELCO | More |
| 510 | 221 | RICHMOND | California | METROPCS, INC. | | More |
| 512 | 221 | ROCKDALE | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 513 | 221 | CINCINNATI | Ohio | CINCINNATI BELL | IND. TELCO | More |
| 514 | 221 | MONTREAL | Quebec | Bell Canada | IND. TELCO | More |
| 515 | 221 | DES MOINES | Iowa | QWEST CORPORATION | RBOC | More |
| 516 | 221 | NASSAUZN09 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 517 | 221 | LANSING | Michigan | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 518 | 221 | ALBANY | New York | METROPCS, INC. | | More |
| 519 | 221 | HESPELER | Ontario | TELUS Mobility | PCS | More |
| 520 | 221 | BENSON | Arizona | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | WIRELESS PROV | More |
| 530 | 221 | REDDING | California | PACIFIC BELL | RBOC | More |
| 531 | 221 | SO YANKTON | Nebraska | ONVOY, LLC - NE | | More |
| 534 | 221 | RHINELANDR | Wisconsin | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 539 | 221 | HASKELL | Oklahoma | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | | More |
| 540 | 221 | WAYNESBORO | Virginia | LUMOS TELEPHONE INC. | IND. TELCO | More |
| 541 | 221 | EUGENE | Oregon | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 551 | 221 | BAYONNE | New Jersey | OMNIPOINT COMMUNICATIONS, INC. - NJ | WIRELESS PROV | More |
| 557 | 221 | MEHLVILLE | Missouri | ONVOY, LLC - MO | | More |
| 559 | 221 | FRESNO | California | PACIFIC BELL | RBOC | More |
| 561 | 221 | STUART | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 562 | 221 | LONG BEACH | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 563 | 221 | DE WITT | Iowa | UNITED STATES CELLULAR - IA | WIRELESS PROV | More |
| 564 | 221 | BATTLEGRND | Washington | COMCAST IP PHONE, LLC | | More |
| 567 | 221 | ADA | Ohio | LEVEL 3 COMMUNICATIONS, LLC - OH | CLEC | More |
| 570 | 221 | ELYSBURG | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 571 | 221 | WSNGTNZN17 | Virginia | METROPCS, INC. | | More |
| 572 | 221 | BETHANY | Oklahoma | ONVOY, LLC - OK | | More |
| 573 | 221 | HANNIBAL | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 574 | 221 | NAPPANEE | Indiana | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 575 | 221 | EUNICE | New Mexico | BANDWIDTH.COM CLEC, LLC - NM | | More |
| 580 | 221 | ARDMORE | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 581 | 221 | Chicoutimi | Quebec | Iristel Inc. | | More |
| 582 | 221 | BOALSBURG | Pennsylvania | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 586 | 221 | MT CLEMENS | Michigan | CENTURYLINK COMMUNICATIONS, LLC | | More |
| 587 | 221 | Cowley | Alberta | TELUS Mobility | WIRELESS PROV | More |
| 602 | 221 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 603 | 221 | NASHUA | New Hampshire | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH | RBOC | More |
| 604 | 221 | VANCOUVER | British Columbia | TELUS | IND. TELCO | More |
| 605 | 221 | SIOUX FLS | South Dakota | MCLEODUSA TELECOMMUNICATION SERVICES, INC. - SD | CLEC | More |
| 606 | 221 | HUSTONVL | Kentucky | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | WIRELESS PROV | More |
| 607 | 221 | BINGHAMTON | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 608 | 221 | MADISON | Wisconsin | WISCONSIN BELL INC | RBOC | More |
| 609 | 221 | WOODBURY | New Jersey | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | WIRELESS PROV | More |
| 610 | 221 | PHPHSBZN25 | Pennsylvania | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 612 | 221 | TWINCITIES | Minnesota | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 613 | 221 | OTTAWA | Ontario | Bell Canada | IND. TELCO | More |
| 614 | 221 | COLUMBUS | Ohio | OHIO BELL TEL CO | RBOC | More |
| 615 | 221 | NASHVILLE | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 616 | 221 | TRAVERSECY | Michigan | ONVOY, LLCV - MI | | More |
| 617 | 221 | QUINCY | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 618 | 221 | CARBONDALE | Illinois | PEERLESS NETWORK OF ILLINOIS, LLC - IL | | More |
| 619 | 221 | SNDG SNDG | California | PACIFIC BELL | RBOC | More |
| 620 | 221 | WINFIELD | Kansas | SOUTHWESTERN BELL | RBOC | More |
| 623 | 221 | PHOENIX | Arizona | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 626 | 221 | COVINA | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 628 | 221 | SNFC CNTRL | California | CENTURYLINK COMMUNICATIONS, LLC | | More |
| 629 | 221 | NASHVILLE | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 630 | 221 | WHEATON | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 631 | 221 | NASZ 9 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 636 | 221 | WASHINGTON | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 640 | 221 | MOUNTHOLLY | New Jersey | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 641 | 221 | GREENFIELD | Iowa | UNITED STATES CELLULAR - IA | WIRELESS PROV | More |
| 646 | 221 | MANHATTAN | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 647 | 221 | TORONTO | Ontario | Bell Mobility | WIRELESS PROV | More |
| 650 | 221 | REDWOOD CITY | California | AMERICAN MESSAGING SERVICES, LLC | WIRELESS PROV | More |
| 651 | 221 | STPZ 2 | Minnesota | QWEST CORPORATION | RBOC | More |
| 656 | 221 | TAMPANTH | Florida | ONVOY, LLC - FL | | More |
| 657 | 221 | ORANGE | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 659 | 221 | CARBONHILL | Alabama | ONVOY, LLC - AL | | More |
| 660 | 221 | SEDALIA | Missouri | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 661 | 221 | MOJAVE | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 662 | 221 | HERNANDO | Mississippi | ONVOY, LLC - MS | | More |
| 667 | 221 | TOWSON | Maryland | TELNYX LLC | | More |
| 669 | 221 | LOS GATOS | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 678 | 221 | CHAMBLEE | Georgia | LEVEL 3 TELECOM OF GEORGIA, LP - GA | CLEC | More |
| 680 | 221 | MADRID | New York | TELNYX LLC | | More |
| 681 | 221 | OAK HILL | West Virginia | CEBRIDGE TELECOM WV, LLC DBA SUDDENLINK COMMS - WV | | More |
| 682 | 221 | ARLINGTON | Texas | METROPCS, INC. | | More |
| 689 | 221 | ORLANDO | Florida | HD CARRIER LLC | | More |
| 701 | 221 | BISMARCK | North Dakota | QWEST CORPORATION | RBOC | More |
| 702 | 221 | LAS VEGAS | Nevada | CENTRAL TEL. CO. - NEVADA DBA CENTURYLINK | IND. TELCO | More |
| 703 | 221 | TRIANGLE | Virginia | VERIZON SOUTH, INC. - VA (CONTEL) | IND. TELCO | More |
| 704 | 221 | MONROE | North Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | WIRELESS PROV | More |
| 705 | 221 | Timmins | Ontario | TELUS Mobility | PCS | More |
| 706 | 221 | COLUMBUS | Georgia | WOW! INTERNET, CABLE AND PHONE | | More |
| 707 | 221 | SAN FRANCISCO | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 708 | 221 | CHICAGO | Illinois | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 712 | 221 | CHEROKEE | Iowa | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | WIRELESS PROV | More |
| 713 | 221 | HOUSTON CAPITOL | Texas | SOUTHWESTERN BELL | RBOC | More |
| 714 | 221 | LOS ANGELES | California | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | | More |
| 715 | 221 | MARSHFIELD | Wisconsin | FRONTIER NORTH INC. - WI | IND. TELCO | More |
| 716 | 221 | ROCHESTER | New York | CHOICE ONE COMMUNICATIONS, INC. - NY | CLEC | More |
| 717 | 221 | HARRISBURG | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 718 | 221 | NYCZ 6 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 719 | 221 | SALIDA | Colorado | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | WIRELESS PROV | More |
| 720 | 221 | DENVER | Colorado | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 724 | 221 | INDIANA | Pennsylvania | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | WIRELESS PROV | More |
| 725 | 221 | LAS VEGAS | Nevada | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV | WIRELESS PROV | More |
| 726 | 221 | SANANTONIO | Texas | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 727 | 221 | ST. PETERSBURG | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 730 | 221 | BROOKPORT | Illinois | COMMIO, LLC | | More |
| 731 | 221 | RIPLEY | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 732 | 221 | RAHWAY | New Jersey | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | WIRELESS PROV | More |
| 734 | 221 | LIVONIA | Michigan | CENTURYLINK COMMUNICATIONS, LLC | | More |
| 737 | 221 | SAN MARCOS | Texas | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 740 | 221 | ZANESVILLE | Ohio | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 743 | 221 | MULBERRY | North Carolina | BANDWIDTH.COM CLEC, LLC - NC | | More |
| 747 | 221 | GLENDALE | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 754 | 221 | HOLLYWOOD | Florida | COMCAST IP PHONE, LLC | | More |
| 757 | 221 | WILLIAMSBURG | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 760 | 221 | VICTORVILLE | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 762 | 221 | HEPHZIBAH | Georgia | CENTURYLINK COMMUNICATIONS, LLC | | More |
| 763 | 221 | TWIN CITIES | Minnesota | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 765 | 221 | PENDLETON | Indiana | FRONTIER NORTH, INC.. - IN | IND. TELCO | More |
| 770 | 221 | SMYRNA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 771 | 221 | WSHNGTNZN1 | District of Columbia | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 772 | 221 | STUART | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 773 | 221 | CHCZ 9 | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 774 | 221 | AUBURN | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 775 | 221 | RENO | Nevada | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 778 | 221 | Houston | British Columbia | Bell Mobility | WIRELESS PROV | More |
| 779 | 221 | ROCKFORD | Illinois | ONVOY, LLC | | More |
| 780 | 221 | Edmonton | Alberta | TELUS Mobility | WIRELESS PROV | More |
| 781 | 221 | BURLINGTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 785 | 221 | TOPEKA | Kansas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS | WIRELESS PROV | More |
| 786 | 221 | SOUTHEAST FL GG-EA | Florida | XO FLORIDA, INC. | CLEC | More |
| 787 | 221 | SANTRUCE | Puerto Rico | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 801 | 221 | OREM | Utah | QWEST CORPORATION | RBOC | More |
| 802 | 221 | NEWFANE | Vermont | LEVEL 3 COMMUNICATIONS, LLC - VT | | More |
| 803 | 221 | NORTH AUGUSTA | South Carolina | POWERTEL ATLANTA LICENSES, INC. | WIRELESS PROV | More |
| 804 | 221 | RICHMOND | Virginia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | WIRELESS PROV | More |
| 805 | 221 | SAN LUIS OBISPO | California | ONVOY, LLC - CA | | More |
| 806 | 221 | PLAINVIEW | Texas | SOUTHWESTERN BELL | RBOC | More |
| 807 | 221 | DRYDEN | Ontario | Dryden Municipal Telephone System | CAP | More |
| 808 | 221 | HONOLULU (OAHU ISLA | Hawaii | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 810 | 221 | PORT HURON | Michigan | PEERLESS NETWORK OF MICHIGAN, LLC - MI | | More |
| 812 | 221 | LAWRENCEBG | Indiana | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 813 | 221 | TAMPA | Florida | FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA | IND. TELCO | More |
| 814 | 221 | CLARION | Pennsylvania | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | WIRELESS PROV | More |
| 815 | 221 | CHICAGO | Illinois | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | CAP | More |
| 816 | 221 | KANSAS CITY MCGEE | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 817 | 221 | RENO | Texas | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | IND. TELCO | More |
| 818 | 221 | SEPULVEDA | California | FRONTIER CALIFORNIA INC. | IND. TELCO | More |
| 819 | 221 | CHARETTE | Quebec | Telephone Milot Inc. | CAP | More |
| 820 | 221 | SANTAMARIA | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 826 | 221 | GAINESBORO | Virginia | TELEPORT COMMUNICATIONS AMERICA, LLC - VA | CLEC | More |
| 828 | 221 | LENOIR | North Carolina | LEVEL 3 COMMUNICATIONS, LLC - NC | | More |
| 830 | 221 | NEW BRAUNFELS | Texas | SOUTHWESTERN BELL | RBOC | More |
| 831 | 221 | SALINAS | California | IP HORIZON LLC | | More |
| 832 | 221 | HOUSTON | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 835 | 221 | POTTSTOWN | Pennsylvania | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | WIRELESS PROV | More |
| 838 | 221 | ALBANY | New York | NUSO, LLC | | More |
| 839 | 221 | COLUMBIA | South Carolina | ONVOY SPECTRUM, LLC | | More |
| 840 | 221 | S BERNDINO | California | HD CARRIER LLC | | More |
| 843 | 221 | WEST ANDREWS | South Carolina | FARMERS TEL. COOP., INC. | IND. TELCO | More |
| 845 | 221 | HOPEWELL JUNCTION | New York | FRONTIER COMMUNICATIONS OF SYLVAN LAKE, INC. | IND. TELCO | More |
| 847 | 221 | CHICAGO | Illinois | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 848 | 221 | TOMS RIVER | New Jersey | LEVEL 3 COMMUNICATIONS, LLC - NJ | CLEC | More |
| 850 | 221 | PENSACOLA | Florida | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | PCS | More |
| 854 | 221 | DILLON | South Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | WIRELESS PROV | More |
| 856 | 221 | BRIDGETON | New Jersey | MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ | | More |
| 857 | 221 | BRIGHTON | Massachusetts | METROPCS, INC. | | More |
| 858 | 221 | SNDG LVTA | California | ONVOY, LLC - CA | | More |
| 859 | 221 | LEXINGTON | Kentucky | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | WIRELESS PROV | More |
| 860 | 221 | CONNECTICUT | Connecticut | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | CAP | More |
| 862 | 221 | MT VIEW | New Jersey | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 863 | 221 | PLANT CITY | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 864 | 221 | ANDERSON | South Carolina | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 865 | 221 | KNOXVILLE | Tennessee | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | WIRELESS PROV | More |
| 870 | 221 | MARSHALL | Arkansas | WINDSTREAM ARKANSAS, INC. | IND. TELCO | More |
| 872 | 221 | CHICGOZN09 | Illinois | BANDWIDTH.COM CLEC, LLC - IL | | More |
| 878 | 221 | BUTLER | Pennsylvania | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 901 | 221 | COLLIERVILLE | Tennessee | NETWORK TELEPHONE CORPORATION - TN | | More |
| 902 | 221 | HALIFAX | Nova Scotia | Aliant Telecom (Mobility) | | More |
| 903 | 221 | DALLAS | Texas | LEVEL 3 COMMUNICATIONS, LLC - TX | CLEC | More |
| 904 | 221 | JACKSONVILLE BEACH | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 905 | 221 | Port Credit | Ontario | Rogers Communications Partnership (Cable) | CLEC | More |
| 906 | 221 | MARQUETTE | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
| 907 | 221 | BIRCH CREEK | Alaska | UNITED UTILITIES, INC. | IND. TELCO | More |
| 908 | 221 | BERNARDSVILLE | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 909 | 221 | HEMET: HEMET DA | California | AMERICAN MESSAGING SERVICES, LLC | | More |
| 910 | 221 | FAYETTEVILLE | North Carolina | LEVEL 3 COMMUNICATIONS, LLC - NC | | More |
| 912 | 221 | SAVANNAH | Georgia | SOUTHERN COMMUNICATIONS SERVICES, INC. | WIRELESS PROV | More |
| 913 | 221 | LENEXA | Kansas | METROPCS, INC. | | More |
| 914 | 221 | HOPEWELL JUNCTION | New York | ONVOY, LLC- NY | | More |
| 915 | 221 | MIDLAND MUTUAL | Texas | BANDWIDTH.COM CLEC, LLC - TX | | More |
| 916 | 221 | SACRAMENTO | California | GLOBAL CROSSING LOCAL SERVICES, INC. - CA | CLEC | More |
| 917 | 221 | NEW YORK CITY ZONE | New York | ZCALL.COM, INC. | | More |
| 918 | 221 | TULSA | Oklahoma | NORTHEAST RURAL SERVICES, INC. - OK | | More |
| 919 | 221 | GOLDSBORO | North Carolina | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 920 | 221 | WATERTOWN | Wisconsin | WISCONSIN BELL INC | RBOC | More |
| 925 | 221 | WALNUT CREEK | California | 33 WIRELESS INC. | WIRELESS PROV | More |
| 928 | 221 | PHOENIX | Arizona | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 929 | 221 | NWYRCYZN06 | New York | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | CLEC | More |
| 930 | 221 | PATOKA | Indiana | ONVOY, LLC - IN | | More |
| 931 | 221 | CLARKSVILLE | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 934 | 221 | SMITHTOWN | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 936 | 221 | NACOGDOCHS | Texas | METROPCS, INC. | | More |
| 937 | 221 | DAYTON | Ohio | OHIO BELL TEL CO | RBOC | More |
| 938 | 221 | ROGERSVL | Alabama | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 939 | 221 | LUQUILLO | Puerto Rico | WORLDNET TELECOMMUNICATIONS, INC. - PR | | More |
| 940 | 221 | GRAHAM | Texas | WEB FIRE COMMUNICATIONS, INC. - TX | | More |
| 941 | 221 | BONITA SPRINGS | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 943 | 221 | CUMMING | Georgia | ONVOY SPECTRUM, LLC | | More |
| 945 | 221 | DALLAS | Texas | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | CAP | More |
| 947 | 221 | DRAYTON PL | Michigan | BANDWIDTH.COM CLEC, LLC - MI | | More |
| 948 | 221 | NRFOLKZON2 | Virginia | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 949 | 221 | IRVINE | California | PACIFIC BELL | RBOC | More |
| 951 | 221 | CORONA | California | BANDWIDTH.COM CLEC, LLC - CA | | More |
| 952 | 221 | TWIN CITIES | Minnesota | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 954 | 221 | FORT LAUDERDALE | Florida | ABC PAGING CITY BEEPERS, INC. | WIRELESS PROV | More |
| 956 | 221 | MCALLEN | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 959 | 221 | HARTFORD | Connecticut | IP HORIZON LLC | | More |
| 970 | 221 | FORT COLLINS | Colorado | QWEST CORPORATION | RBOC | More |
| 971 | 221 | PORTLAND | Oregon | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | | More |
| 972 | 221 | LEWISVILLE | Texas | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | IND. TELCO | More |
| 973 | 221 | SECAUCAS | New Jersey | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 978 | 221 | LAWRENCE | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA | CLEC | More |
| 979 | 221 | HOUSTON | Texas | LEVEL 3 COMMUNICATIONS, LLC - TX | CLEC | More |
| 980 | 221 | STATESVILLE | North Carolina | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | CLEC | More |
| 984 | 221 | RALEIGH | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 985 | 221 | MORGANCITY | Louisiana | LEVEL 3 COMMUNICATIONS, LLC - LA | | More |
| 986 | 221 | WEISER | Idaho | BANDWIDTH.COM CLEC, LLC - ID | | More |
| 989 | 221 | CLIFFORD | Michigan | TELNET WORLDWIDE, INC. | CLEC | More |
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