Area
Code | Prefix | City/Switch Name
(Click for city search) | State/Prov.
Area Map | Telephone Company
Web link | Telco
Type | More
Info |
|---|
| 201 | 666 | WESTWOOD | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 202 | 666 | WSHNGTNZN1 | District of Columbia | WIDE VOICE, LLC - DC | | More |
| 203 | 666 | BRIDGEPORT | Connecticut | LEVEL 3 COMMUNICATIONS, LLC - CT | CLEC | More |
| 204 | 666 | WINNIPEG | Manitoba | LES.NET (1996) Inc. | | More |
| 205 | 666 | BIRMINGHAM | Alabama | ONVOY, LLC - AL | | More |
| 206 | 666 | SEATTLE | Washington | ONVOY, LLC - WA | | More |
| 207 | 666 | BOWDOINHAM | Maine | CONSOLIDATED COMM OF NO. NEW ENGLAND-ME | RBOC | More |
| 208 | 666 | COERDALENE | Idaho | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | IND. TELCO | More |
| 209 | 666 | TRACY | California | ONVOY, LLC - CA | | More |
| 210 | 666 | SANANTONIO | Texas | SOUTHWESTERN BELL | RBOC | More |
| 212 | 666 | NWYRCYZN02 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 213 | 666 | LSAN DA 01 | California | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | | More |
| 214 | 666 | DALLAS | Texas | NEW TALK INC DBA GET A PHONE FKA CONNECT PG TX | | More |
| 215 | 666 | MORRISVL | Pennsylvania | AT&T - LOCAL | CLEC | More |
| 216 | 666 | CLEVELAND | Ohio | ONVOY, LLC - OH | | More |
| 217 | 666 | WEST DANA | Indiana | ILLINOIS BELL TEL CO | RBOC | More |
| 218 | 666 | COOK | Minnesota | QWEST CORPORATION | RBOC | More |
| 219 | 666 | HAMMOND | Indiana | ONVOY, LLC - IN | | More |
| 220 | 666 | BALTIMORE | Ohio | ONVOY, LLC - OH | | More |
| 223 | 666 | HARISBGZN1 | Pennsylvania | FRACTEL, LLC | | More |
| 224 | 666 | ARLIGTNHTS | Illinois | TERRA NOVA TELECOM INC. | | More |
| 225 | 666 | BATONROUGE | Louisiana | ONVOY, LLC - LA | | More |
| 226 | 666 | Kitchener-Waterloo | Ontario | Fibernetics Corporation | | More |
| 228 | 666 | MOSS POINT | Mississippi | FRACTEL, LLC | | More |
| 229 | 666 | PELHAM | Georgia | FRACTEL, LLC | | More |
| 231 | 666 | MUSKEGON | Michigan | ONVOY, LLCV - MI | | More |
| 234 | 666 | CANTON | Ohio | FRACTEL, LLC | | More |
| 239 | 666 | FORT MYERS | Florida | ONVOY, LLC - FL | | More |
| 240 | 666 | NANJEMOY | Maryland | ONVOY, LLC - MD | | More |
| 248 | 666 | DRAYTON PL | Michigan | MICHIGAN BELL TEL CO | RBOC | More |
| 250 | 666 | Grand Forks | British Columbia | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 251 | 666 | MOBILE | Alabama | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 252 | 666 | KNOTTS IS | North Carolina | TERRA NOVA TELECOM INC. | | More |
| 253 | 666 | TACOMA | Washington | LEVEL 3 COMMUNICATIONS, LLC - WA | CLEC | More |
| 254 | 666 | WACO | Texas | SOUTHWESTERN BELL | RBOC | More |
| 256 | 666 | HUNTSVILLE | Alabama | ONVOY, LLC - AL | | More |
| 260 | 666 | MONROEVL | Indiana | FRACTEL, LLC | | More |
| 262 | 666 | WAUKESHA | Wisconsin | ONVOY, LLC - WI | | More |
| 267 | 666 | PHLDLPHZN1 | Pennsylvania | ONVOY, LLC - PA | | More |
| 269 | 666 | KALAMAZOO | Michigan | ONVOY, LLCV - MI | | More |
| 270 | 666 | HOPKINSVL | Kentucky | VONAGE AMERICA LLC | | More |
| 272 | 666 | TAMAQUA | Pennsylvania | ONVOY, LLC - PA | | More |
| 276 | 666 | MARTINSVL | Virginia | CENTRAL TEL. CO. OF VIRGINIA DBA CENTURYLINK | IND. TELCO | More |
| 279 | 666 | SCRM NORTH | California | FRACTEL, LLC | | More |
| 281 | 666 | CROSBY | Texas | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | CLEC | More |
| 301 | 666 | WSNG236Z14 | District of Columbia | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | CLEC | More |
| 302 | 666 | DOVER | Delaware | VERIZON DELAWARE, INC. | RBOC | More |
| 303 | 666 | DENVER | Colorado | QWEST CORPORATION | RBOC | More |
| 304 | 666 | WEST UNION | West Virginia | ARMSTRONG TELECOMMUNICATIONS, INC. - WV | | More |
| 305 | 666 | MIAMI | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 306 | 666 | FOX VALLEY | Saskatchewan | SaskTel | IND. TELCO | More |
| 307 | 666 | CHEYENNE | Wyoming | FRACTEL, LLC | | More |
| 309 | 666 | PEORIA | Illinois | FRACTEL, LLC | | More |
| 310 | 666 | BEVERLYHLS | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 312 | 666 | CHICGOZN01 | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 313 | 666 | DETROITZN6 | Michigan | ONVOY, LLCV - MI | | More |
| 314 | 666 | LADUE | Missouri | PEERLESS NETWORK OF MISSOURI, LLC - MO | | More |
| 315 | 666 | CHITTENNGO | New York | ONVOY, LLC- NY | | More |
| 316 | 666 | TOWANDA | Kansas | PEERLESS NETWORK OF KANSAS, LLC - KS | | More |
| 317 | 666 | FAIRLAND | Indiana | ONVOY, LLC - IN | | More |
| 318 | 666 | SHREVEPORT | Louisiana | ONVOY, LLC - LA | | More |
| 319 | 666 | CEDARFALLS | Iowa | FRACTEL, LLC | | More |
| 320 | 666 | FOLEY | Minnesota | FRACTEL, LLC | | More |
| 321 | 666 | ORLANDO | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 323 | 666 | LSAN DA 02 | California | PACIFIC BELL | RBOC | More |
| 325 | 666 | WINTERS | Texas | ONVOY, LLC - TX | | More |
| 326 | 666 | TREMONT CY | Ohio | FRACTEL, LLC | | More |
| 329 | 666 | GOSHEN | New York | ONVOY SPECTRUM, LLC | | More |
| 330 | 666 | MONTROSE | Ohio | FRONTIER NORTH, INC. - OH | IND. TELCO | More |
| 331 | 666 | AURORA | Illinois | ONVOY, LLC | | More |
| 332 | 666 | NWYRCYZN01 | New York | BANDWIDTH.COM CLEC, LLC - NY | | More |
| 334 | 666 | MOBILE | Alabama | ONVOY, LLC - AL | | More |
| 336 | 666 | WINSTN SAL | North Carolina | PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC | | More |
| 337 | 666 | REEVES | Louisiana | CENTURYLINK OF LOUISIANA, LLC | IND. TELCO | More |
| 339 | 666 | LYNN | Massachusetts | ONVOY, LLC - MA | | More |
| 341 | 666 | OKLD TRNID | California | FRACTEL, LLC | | More |
| 346 | 666 | CYPRESS | Texas | ONVOY, LLC - TX | | More |
| 347 | 666 | NWYRCYZN08 | New York | METROPCS, INC. | | More |
| 350 | 666 | SANANDREAS | California | TERRA NOVA TELECOM INC. | | More |
| 351 | 666 | PEABODY | Massachusetts | ONVOY, LLC - MA | | More |
| 352 | 666 | WEEKICHSPG | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 360 | 666 | BATTLEGRND | Washington | QWEST CORPORATION | RBOC | More |
| 361 | 666 | ALICE | Texas | ONVOY, LLC - TX | | More |
| 380 | 666 | GROVE CITY | Ohio | ONVOY, LLC - OH | | More |
| 385 | 666 | PROVO | Utah | ONVOY, LLC - UT | | More |
| 386 | 666 | PALATKA | Florida | TELNYX LLC | | More |
| 401 | 666 | CUMBLND HL | Rhode Island | PEERLESS NETWORK OF RHODE ISLAND, LLC - RI | | More |
| 402 | 666 | LNWDMRSBLF | Nebraska | NORTHEAST NEBRASKA TEL. CO. | IND. TELCO | More |
| 403 | 666 | ETZIKOM | Alberta | TELUS | IND. TELCO | More |
| 404 | 666 | ATLANTA | Georgia | BANDWIDTH.COM CLEC, LLC - GA | | More |
| 405 | 666 | OKLA CITY | Oklahoma | COMMIO, LLC | | More |
| 406 | 666 | FORT SMITH | Montana | PROJECT TEL. CO., INC. | IND. TELCO | More |
| 407 | 666 | | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 408 | 666 | SNJS WEST | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 409 | 666 | GALVESTON | Texas | FRACTEL, LLC | | More |
| 410 | 666 | COCKEYSVL | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 412 | 666 | PTGSBNZN22 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 413 | 666 | GRANVILLE | Massachusetts | ONVOY, LLC - MA | | More |
| 414 | 666 | MILWAUKZN1 | Wisconsin | ONVOY, LLC - WI | | More |
| 415 | 666 | SNFC MT-EV | California | PACIFIC BELL | RBOC | More |
| 416 | 666 | ORONTO | Ontario | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 418 | 666 | QUEBEC | Quebec | Bell Canada | IND. TELCO | More |
| 419 | 666 | TOLEDO | Ohio | OHIO BELL TEL CO | RBOC | More |
| 423 | 666 | ELIZABTHTN | Tennessee | ONVOY, LLC - TN | | More |
| 424 | 666 | BEVERLYHLS | California | BANDWIDTH.COM CLEC, LLC - CA | | More |
| 425 | 666 | EVERETT | Washington | FRACTEL, LLC | | More |
| 430 | 666 | DENISON | Texas | FRACTEL, LLC | | More |
| 432 | 666 | COMSTOCK | Texas | ONVOY, LLC - TX | | More |
| 434 | 666 | CHARLOTSVL | Virginia | FRACTEL, LLC | | More |
| 435 | 666 | PARK CITY | Utah | FRACTEL, LLC | | More |
| 440 | 666 | CLEVELAND | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 442 | 666 | PALMDESERT | California | ONVOY, LLC - CA | | More |
| 443 | 666 | PT DEPOSIT | Maryland | LEVEL 3 COMMUNICATIONS, LLC - MD | CLEC | More |
| 445 | 666 | GREEN LANE | Pennsylvania | ONVOY, LLC - PA | | More |
| 447 | 666 | BUCKLEY | Illinois | FRACTEL, LLC | | More |
| 448 | 666 | TALLAHASSE | Florida | FRACTEL, LLC | | More |
| 450 | 666 | LAVAL EST | Quebec | Bell Canada | IND. TELCO | More |
| 458 | 666 | BEND | Oregon | FRACTEL, LLC | | More |
| 463 | 666 | MOORESVL | Indiana | ONVOY, LLC - IN | | More |
| 464 | 666 | CALUMET CY | Illinois | FRACTEL, LLC | | More |
| 469 | 666 | DALLAS RICHARDSON | Texas | BANDWIDTH.COM CLEC, LLC - TX | | More |
| 470 | 666 | LITHONIA | Georgia | CORETEL GEORGIA, INC. - GA | | More |
| 475 | 666 | LITHONIA | Georgia | PEERLESS NETWORK OF CONNECTICUT, LLC - CT | | More |
| 478 | 666 | CENTERVL | Georgia | ONVOY, LLC - GA | | More |
| 479 | 666 | WALDRON | Arkansas | ONVOY SPECTRUM, LLC | | More |
| 480 | 666 | PHOENIX | Arizona | ONVOY, LLC - AZ | | More |
| 484 | 666 | BETHLEHEM | Pennsylvania | ONVOY, LLC - PA | | More |
| 501 | 666 | LITTLEROCK | Arkansas | SOUTHWESTERN BELL | RBOC | More |
| 502 | 666 | LOUISVILLE | Kentucky | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 503 | 666 | GRESHAM | Oregon | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | IND. TELCO | More |
| 504 | 666 | NEWORLEANS | Louisiana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA | WIRELESS PROV | More |
| 505 | 666 | WAGONMOUND | New Mexico | TELNYX LLC | | More |
| 507 | 666 | WORTHINGTN | Minnesota | ONVOY, LLC - MN | | More |
| 508 | 666 | ORLEANS | Massachusetts | NORFOLK COUNTY INTERNET, INC. | CLEC | More |
| 509 | 666 | SPOKANE | Washington | COMMIO, LLC | | More |
| 510 | 666 | OKLD BKLY | California | PACIFIC BELL | RBOC | More |
| 512 | 666 | AUSTIN | Texas | WORLDCALL INTERCONNECT INC. | | More |
| 513 | 666 | CINCINNATI | Ohio | ONVOY, LLC - OH | | More |
| 514 | 666 | Montreal | Quebec | MTS Allstream Inc. | CLEC | More |
| 515 | 666 | DES MOINES | Iowa | FRACTEL, LLC | | More |
| 516 | 666 | BAY SHORE | New York | ONVOY, LLC- NY | | More |
| 517 | 666 | OWOSSO | Michigan | ONVOY, LLCV - MI | | More |
| 518 | 666 | STREGISFLS | New York | PEERLESS NETWORK OF NEW YORK, LLC - NY | | More |
| 519 | 666 | ILDERTON | Ontario | Bell Canada | IND. TELCO | More |
| 520 | 666 | CASAGRANDE | Arizona | ONVOY, LLC - AZ | | More |
| 530 | 666 | WOODLAND | California | PACIFIC BELL | RBOC | More |
| 531 | 666 | FREMONT | Nebraska | FRACTEL, LLC | | More |
| 534 | 666 | GREENWOOD | Wisconsin | FRACTEL, LLC | | More |
| 539 | 666 | TULSA | Oklahoma | ONVOY, LLC - OK | | More |
| 540 | 666 | ROANOKE | Virginia | RADIANTIQ LLC | | More |
| 541 | 666 | ALBANY | Oregon | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 551 | 666 | BAYONNE | New Jersey | ONVOY, LLC - NJ | | More |
| 559 | 666 | FRESNO | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 561 | 666 | DELRAY BCH | Florida | METROPCS, INC. | | More |
| 562 | 666 | ALAMITOS | California | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | | More |
| 563 | 666 | WALCOTT | Iowa | ONVOY, LLC - IA | | More |
| 564 | 666 | VADER | Washington | FRACTEL, LLC | | More |
| 567 | 666 | TOLEDO | Ohio | VONAGE AMERICA LLC | | More |
| 570 | 666 | WILLIAMSPT | Pennsylvania | CORE COMMUNICATIONS, INC. - PA | | More |
| 571 | 666 | WSNGTNZN17 | Virginia | ONVOY, LLC - VA | | More |
| 572 | 666 | EL RENO | Oklahoma | FRACTEL, LLC | | More |
| 573 | 666 | BOWLNGGREN | Missouri | FRACTEL, LLC | | More |
| 574 | 666 | SOUTH BEND | Indiana | FRACTEL, LLC | | More |
| 575 | 666 | WAGONMOUND | New Mexico | LA JICARITA RURAL TEL. COOP., INC. | IND. TELCO | More |
| 580 | 666 | ROCKY | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 582 | 666 | COUDERSPT | Pennsylvania | FRACTEL, LLC | | More |
| 585 | 666 | ROCHESTER | New York | FRONTIER TELEPHONE OF ROCHESTER, INC. | IND. TELCO | More |
| 586 | 666 | MT CLEMENS | Michigan | ONVOY, LLCV - MI | | More |
| 601 | 666 | NEWTONHKRY | Mississippi | ONVOY, LLC - MS | | More |
| 602 | 666 | PHOENIX | Arizona | PEERLESS NETWORK OF ARIZONA, LLC - AZ | | More |
| 603 | 666 | MANCHESTER | New Hampshire | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH | RBOC | More |
| 604 | 666 | VANCOUVER | British Columbia | TELUS | IND. TELCO | More |
| 605 | 666 | KEYSTONE | South Dakota | FORT RANDALL TELCO DBA MT RUSHMORE TELEPHONE CO | IND. TELCO | More |
| 606 | 666 | JACKSON | Kentucky | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 607 | 666 | BINGHAMTON | New York | ONVOY, LLC- NY | | More |
| 608 | 666 | LYNDON STA | Wisconsin | FRONTIER NORTH INC. - WI | IND. TELCO | More |
| 609 | 666 | HAMMONTON | New Jersey | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | WIRELESS PROV | More |
| 610 | 666 | PHPHSBZN29 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 612 | 666 | TWINCITIES | Minnesota | ONVOY, LLC - MN | | More |
| 614 | 666 | HILLIARD | Ohio | PEERLESS NETWORK OF OHIO, LLC - OH | | More |
| 615 | 666 | LAFAYETTE | Tennessee | NORTH CENTRAL TEL. COOP., INC. | IND. TELCO | More |
| 616 | 666 | GRAND RPDS | Michigan | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 617 | 666 | SOMERVILLE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 618 | 666 | COLLINSVL | Illinois | ONVOY, LLC | | More |
| 619 | 666 | SNDG SNDG | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 620 | 666 | FLORENCE | Kansas | FRACTEL, LLC | | More |
| 623 | 666 | PHOENIX | Arizona | ONVOY, LLC - AZ | | More |
| 626 | 666 | PSDN PSDN | California | PACIFIC BELL | RBOC | More |
| 628 | 666 | IGNACIO | California | ONVOY, LLC - CA | | More |
| 629 | 666 | NASHVILLE | Tennessee | ONVOY, LLC - TN | | More |
| 630 | 666 | ELMHURST | Illinois | METROPCS, INC. | | More |
| 631 | 666 | BAY SHORE | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 636 | 666 | UNION | Missouri | TERRA NOVA TELECOM INC. | | More |
| 640 | 666 | BARNEGAT | New Jersey | FRACTEL, LLC | | More |
| 641 | 666 | OSAGE | Iowa | ONVOY, LLC - IA | | More |
| 645 | 666 | HOMESTEAD | Florida | WIDE VOICE, LLC - FL | | More |
| 646 | 666 | NWYRCYZN01 | New York | LEVEL 3 COMMUNICATIONS, LLC - NY | CLEC | More |
| 650 | 666 | PALO ALTO | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 651 | 666 | TWINCITIES | Minnesota | ONVOY, LLC - MN | | More |
| 656 | 666 | ZEPHYRHILS | Florida | FRACTEL, LLC | | More |
| 657 | 666 | WESTMINSTR | California | ONVOY, LLC - CA | | More |
| 659 | 666 | FAYETTE | Alabama | ONVOY, LLC - AL | | More |
| 660 | 666 | DARLINGTON | Missouri | GRAND RIVER MUTUAL TEL CO | IND. TELCO | More |
| 661 | 666 | BAKERSFIELD: MAIN D | California | ONVOY, LLC - CA | | More |
| 662 | 666 | VERONA | Mississippi | ONVOY, LLC - MS | | More |
| 667 | 666 | WEST RIVER | Maryland | ONVOY, LLC - MD | | More |
| 669 | 666 | SNJS WEST | California | ONVOY, LLC - CA | | More |
| 678 | 666 | JONESBORO | Georgia | LEVEL 3 COMMUNICATIONS, LLC - GA | CLEC | More |
| 680 | 666 | LIVERPOOL | New York | ONVOY, LLC- NY | | More |
| 681 | 666 | BECKLEY | West Virginia | FRACTEL, LLC | | More |
| 682 | 666 | ARLINGTON | Texas | ONVOY, LLC - TX | | More |
| 689 | 666 | SANFORD | Florida | FRACTEL, LLC | | More |
| 701 | 666 | MINTO | North Dakota | ONVOY, LLC - ND | | More |
| 702 | 666 | LAS VEGAS | Nevada | LEVEL 3 COMMUNICATIONS, LLC - NV | CLEC | More |
| 703 | 666 | WASHINGTON ZONE 8 | Virginia | CAVALIER EAST, LLC - VA | CLEC | More |
| 704 | 666 | Unknown | North Carolina | TELEPORT COMMUNICATIONS AMERICA, LLC - NC | CLEC | More |
| 705 | 666 | MOONSTONE | Ontario | Bell Canada | IND. TELCO | More |
| 706 | 666 | HIAWASSEE | Georgia | BANDWIDTH.COM CLEC, LLC - GA | | More |
| 707 | 666 | NAPA | California | ONVOY, LLC - CA | | More |
| 708 | 666 | OAK PARK | Illinois | CLEAR RATE COMMUNICATIONS, INC. - IL | | More |
| 712 | 666 | SIOUX CITY | Iowa | FRACTEL, LLC | | More |
| 713 | 666 | HOUSTON MOHAWK | Texas | SOUTHWESTERN BELL | RBOC | More |
| 714 | 666 | ANAHEIM | California | PACIFIC BELL | RBOC | More |
| 715 | 666 | MARINETTE | Wisconsin | ONVOY, LLC - WI | | More |
| 716 | 666 | GOWANDA | New York | ONVOY, LLC- NY | | More |
| 717 | 666 | LANCASTER | Pennsylvania | LEVEL 3 COMMUNICATIONS, LLC - PA | CLEC | More |
| 718 | 666 | MANHATTAN | New York | TC SYSTEMS, INC. - NY | CAP | More |
| 719 | 666 | COLORDOSPG | Colorado | ONVOY, LLC - CO | | More |
| 720 | 666 | DENVER | Colorado | PEERLESS NETWORK OF COLORADO, LLC - CO | | More |
| 724 | 666 | HICKORY | Pennsylvania | CORE COMMUNICATIONS, INC. - PA | | More |
| 725 | 666 | LAS VEGAS | Nevada | ONVOY, LLC - NV | | More |
| 726 | 666 | SANANTONIO | Texas | WORLDCALL INTERCONNECT INC. | | More |
| 727 | 666 | CLEARWATER | Florida | PEERLESS NETWORK OF FLORIDA, LLC - FL | | More |
| 728 | 666 | BOCA RATON | Florida | WIDE VOICE, LLC - FL | | More |
| 731 | 666 | CAMDEN | Tennessee | ONVOY, LLC - TN | | More |
| 732 | 666 | MONMOUTH JUNCTION | New Jersey | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 734 | 666 | LIVONIA | Michigan | MICHIGAN BELL TEL CO | RBOC | More |
| 737 | 666 | ELGIN | Texas | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | | More |
| 740 | 666 | OSTRANDER | Ohio | FRONTIER NORTH, INC. - OH | IND. TELCO | More |
| 743 | 666 | GREENSBORO | North Carolina | FRACTEL, LLC | | More |
| 747 | 666 | AGOURA | California | ONVOY, LLC - CA | | More |
| 754 | 666 | POMPANOBCH | Florida | BANDWIDTH.COM CLEC, LLC - FL | | More |
| 757 | 666 | NFKZ 2 | Virginia | RADIANTIQ LLC | | More |
| 760 | 666 | SAN DIEGO | California | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | CLEC | More |
| 763 | 666 | OSSEO | Minnesota | SPRINT SPECTRUM L.P. | PCS | More |
| 765 | 666 | KIRKLIN | Indiana | FRACTEL, LLC | | More |
| 769 | 666 | MADISON | Mississippi | ONVOY, LLC - MS | | More |
| 770 | 666 | NORCROSS | Georgia | TELEPORT COMMUNICATIONS AMERICA, LLC - GA | CLEC | More |
| 772 | 666 | FORTPIERCE | Florida | FRACTEL, LLC | | More |
| 773 | 666 | CHICGOZN03 | Illinois | BANDWIDTH.COM CLEC, LLC - IL | | More |
| 774 | 666 | GRAFTON | Massachusetts | ONVOY, LLC - MA | | More |
| 775 | 666 | FALLON | Nevada | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV | WIRELESS PROV | More |
| 779 | 666 | ROCKFORD | Illinois | ONVOY, LLC | | More |
| 780 | 666 | Edmonton | Alberta | Iristel Inc. | | More |
| 781 | 666 | SAUGUS | Massachusetts | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | | More |
| 785 | 666 | DORRANCE | Kansas | H & B COMMUNICATIONS, INC. | IND. TELCO | More |
| 786 | 666 | MIAMI | Florida | DSL INTERNET CORPORATION - FL | | More |
| 787 | 666 | BAYAMONNOR | Puerto Rico | SUNCOM DBA T-MOBILE USA | PCS | More |
| 801 | 666 | Unknown | Utah | VERACITY COMMUNICATIONS, INC. - UT | | More |
| 802 | 666 | BURLINGTON | Vermont | TERRA NOVA TELECOM INC. | | More |
| 803 | 666 | SHAWVIEW HEIGHTS | South Carolina | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC | IND. TELCO | More |
| 804 | 666 | BETHIA | Virginia | TELNYX LLC | | More |
| 805 | 666 | VNTRA EAST | California | ONVOY, LLC - CA | | More |
| 806 | 666 | TAHOKA | Texas | ONVOY, LLC - TX | | More |
| 808 | 666 | WAILUKU | Hawaii | ONVOY, LLC - HI | | More |
| 810 | 666 | FLINT | Michigan | ONVOY, LLCV - MI | | More |
| 812 | 666 | ORLEANS | Indiana | LEVEL 3 COMMUNICATIONS, LLC - IN | CLEC | More |
| 813 | 666 | TAMPACEN | Florida | BANDWIDTH.COM CLEC, LLC - FL | | More |
| 814 | 666 | NORTH EAST | Pennsylvania | ONVOY, LLC - PA | | More |
| 815 | 666 | JOLIET | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
| 816 | 666 | KANSASCITY | Missouri | AVID COMMUNICATIONS, LLC - MO | | More |
| 817 | 666 | ROANOKE | Texas | CHARTER FIBERLINK TX-CCO, LLC - TX | | More |
| 818 | 666 | VAN NUYS | California | BANDWIDTH.COM CLEC, LLC - CA | | More |
| 819 | 666 | SANMAUR | Quebec | Telebec Ltee. | IXC | More |
| 820 | 666 | SNLUSOBSPO | California | FRACTEL, LLC | | More |
| 826 | 666 | CATOCTIN | Virginia | FRACTEL, LLC | | More |
| 828 | 666 | HICKORY | North Carolina | FRACTEL, LLC | | More |
| 830 | 666 | VINEGRROON | Texas | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | | More |
| 831 | 666 | WATSONVL | California | ONVOY, LLC - CA | | More |
| 832 | 666 | BAMMEL | Texas | AT&T CORP. | | More |
| 838 | 666 | ESPERANCE | New York | ONVOY, LLC- NY | | More |
| 839 | 666 | ESTILL | South Carolina | FRACTEL, LLC | | More |
| 840 | 666 | FONTANA | California | FRACTEL, LLC | | More |
| 843 | 666 | CHARLESTON | South Carolina | ONVOY, LLC - SC | | More |
| 845 | 666 | COLDSPRING | New York | BROADVIEW NETWORKS, INC. - NY | CLEC | More |
| 847 | 666 | NORTHBROOK | Illinois | FIRST COMMUNICATIONS, LLC | | More |
| 848 | 666 | RAHWAY | New Jersey | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | WIRELESS PROV | More |
| 850 | 666 | TALLAHASSE | Florida | ONVOY, LLC - FL | | More |
| 854 | 666 | LAKE CITY | South Carolina | FRACTEL, LLC | | More |
| 856 | 666 | PAULSBORO | New Jersey | ONVOY, LLC - NJ | | More |
| 857 | 666 | BROOKLINE | Massachusetts | ONVOY, LLC - MA | | More |
| 858 | 666 | LA JOLLA | California | ONVOY, LLC - CA | | More |
| 859 | 666 | WILLIAMSTN | Kentucky | ONVOY, LLC - KY | | More |
| 860 | 666 | NEWINGTON | Connecticut | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | IND. TELCO | More |
| 862 | 666 | POMPTONLKS | New Jersey | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | | More |
| 863 | 666 | LAKELAND | Florida | FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA | IND. TELCO | More |
| 864 | 666 | GREENVILLE | South Carolina | TERRA NOVA TELECOM INC. | | More |
| 865 | 666 | KNOXVILLE | Tennessee | ONVOY, LLC - TN | | More |
| 870 | 666 | JONESBORO | Arkansas | FRACTEL, LLC | | More |
| 872 | 666 | CHICGOZN09 | Illinois | PEERLESS NETWORK OF ILLINOIS, LLC - IL | | More |
| 878 | 666 | MARION CTR | Pennsylvania | ONVOY, LLC - PA | | More |
| 901 | 666 | MEMPHIS | Tennessee | ONVOY, LLC - TN | | More |
| 903 | 666 | JEFFERSON | Texas | SOUTHWESTERN BELL | RBOC | More |
| 904 | 666 | DAYTONA BEACH | Florida | POWERTEL JACKSONVILLE LICENSES, INC. | WIRELESS PROV | More |
| 905 | 666 | WHITBY | Ontario | Bell Canada | IND. TELCO | More |
| 906 | 666 | MARQUETTE | Michigan | CLEAR RATE COMMUNICATIONS, INC. - MI | | More |
| 908 | 666 | WESTFIELD | New Jersey | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | WIRELESS PROV | More |
| 909 | 666 | RIALTO | California | BANDWIDTH.COM CLEC, LLC - CA | | More |
| 910 | 666 | WILMINGTON | North Carolina | FRACTEL, LLC | | More |
| 912 | 666 | SAVANNAH | Georgia | ONVOY, LLC - GA | | More |
| 913 | 666 | KANSASCITY | Kansas | FRACTEL, LLC | | More |
| 914 | 666 | MOUNT KISCO | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 915 | 666 | CANUTILLO | Texas | FRACTEL, LLC | | More |
| 916 | 666 | RSVL MAIN | California | ONVOY, LLC - CA | | More |
| 917 | 666 | NEW YORK CITY ZONE | New York | ZCALL.COM, INC. | | More |
| 918 | 666 | SENECA | Missouri | SENECA TEL. CO. | IND. TELCO | More |
| 919 | 666 | DURHAM | North Carolina | GLOBAL CROSSING LOCAL SERVICES, INC. - NC | | More |
| 920 | 666 | APPLETON | Wisconsin | ONVOY, LLC - WI | | More |
| 925 | 666 | OAKLAND | California | MATRIX TELECOM, LLC. S/I/I TNCI - CA | CLEC | More |
| 928 | 666 | FLAGSTAFF | Arizona | FRACTEL, LLC | | More |
| 929 | 666 | NWYRCYZN08 | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 930 | 666 | TERREHAUTE | Indiana | ONVOY, LLC - IN | | More |
| 931 | 666 | CUMBERLDCY | Tennessee | ONVOY, LLC - TN | | More |
| 934 | 666 | CENTRAISLP | New York | WORLDCALL INTERCONNECT INC. | | More |
| 936 | 666 | WILLIS | Texas | UTEX COMMUNICATIONS CORP. - TX | | More |
| 936 | 666 | WILLIS | Texas | BANDWIDTH.COM CLEC, LLC - TX | | More |
| 937 | 666 | EAST LIBERTY | Ohio | UNITED TEL. CO. OF OHIO DBA CENTURYLINK | IND. TELCO | More |
| 938 | 666 | HUNTSVILLE | Alabama | ONVOY, LLC - AL | | More |
| 939 | 666 | SANSBSTIAN | Puerto Rico | NATURAL G.C. INC. - PR | | More |
| 940 | 666 | AUBREY | Texas | FRACTEL, LLC | | More |
| 941 | 666 | BRADENTON | Florida | ONVOY, LLC - FL | | More |
| 943 | 666 | ROCKMART | Georgia | TERRA NOVA TELECOM INC. | | More |
| 945 | 666 | PALMER | Texas | USFON, INC. - TX | | More |
| 947 | 666 | MILFDWH LK | Michigan | ONVOY, LLCV - MI | | More |
| 948 | 666 | NWPTNWSZN1 | Virginia | FRACTEL, LLC | | More |
| 949 | 666 | LOS ANGELES - PAC W | California | MATRIX TELECOM, LLC. S/I/I TNCI - CA | CLEC | More |
| 951 | 666 | CORONA | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 952 | 666 | TWINCITIES | Minnesota | ONVOY, LLC - MN | | More |
| 954 | 666 | FTLAUDERDL | Florida | BANDWIDTH.COM CLEC, LLC - FL | | More |
| 956 | 666 | PHARR | Texas | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | | More |
| 959 | 666 | HARTFORD | Connecticut | ONVOY, LLC - CT | | More |
| 970 | 666 | FT COLLINS | Colorado | ONVOY, LLC - CO | | More |
| 971 | 666 | PORTLAND | Oregon | ONVOY, LLC - OR | | More |
| 972 | 666 | BRISTOL | Texas | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | IND. TELCO | More |
| 973 | 666 | ORANGE | New Jersey | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | WIRELESS PROV | More |
| 978 | 666 | CAMBRIDGE | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 979 | 666 | MORAVIA | Texas | WORLDCALL INTERCONNECT INC. | | More |
| 980 | 666 | CHARLOTTE | North Carolina | ONVOY, LLC - NC | | More |
| 984 | 666 | RALEIGH | North Carolina | FRACTEL, LLC | | More |
| 985 | 666 | COVINGTON | Louisiana | TELNYX LLC | | More |
| 986 | 666 | NAMPA | Idaho | FRACTEL, LLC | | More |
| 989 | 666 | OWOSSO | Michigan | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | | More |
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