Area
Code | Prefix | City/Switch Name
(Click for city search) | State/Prov.
Area Map | Telephone Company
Web link | Telco
Type | More
Info |
|---|
| 201 | 401 | JERSEYCITY | New Jersey | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | WIRELESS PROV | More |
| 202 | 401 | WSHNGTNZN1 | District of Columbia | VERIZON WASHINGTON, DC INC. | RBOC | More |
| 203 | 401 | NEW HAVEN | Connecticut | SOUTHERN NEW ENGLAND TELEPHONE CO. | IND. TELCO | More |
| 205 | 401 | BIRMINGHAM | Alabama | POWERTEL BIRMINGHAM LICENSES, INC. | WIRELESS PROV | More |
| 206 | 401 | RICHMNDBCH | Washington | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 208 | 401 | MERIDIAN | Idaho | MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- ID | | More |
| 209 | 401 | STOCKTON | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 210 | 401 | SEGUIN FRANKLIN | Texas | YMAX COMMUNICATIONS CORP. - TX | | More |
| 212 | 401 | NWYRCYZN01 | New York | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 213 | 401 | LSAN DA 10 | California | TELEPORT COMMUNICATIONS GROUP - LOS ANGELES | CLEC | More |
| 214 | 401 | GRANDPRARI | Texas | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 215 | 401 | PHLDLPHZN1 | Pennsylvania | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 216 | 401 | CLEVELAND | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 217 | 401 | BLUFFS | Illinois | LEVEL 3 COMMUNICATIONS, LLC - IL | CLEC | More |
| 218 | 401 | WAUBUN | Minnesota | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | | More |
| 219 | 401 | CEDAR LAKE | Indiana | BANDWIDTH.COM CLEC, LLC - IN | | More |
| 224 | 401 | ALGONQUIN | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 225 | 401 | PLAQUEMINE | Louisiana | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 226 | 401 | Brantford | Ontario | Iristel Inc. | | More |
| 229 | 401 | CORDELE | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 234 | 401 | NO CANTON | Ohio | FIRST COMMUNICATIONS, LLC - OH | | More |
| 240 | 401 | WSNGTNZN10 | District of Columbia | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 248 | 401 | ROYAL OAK | Michigan | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 250 | 401 | CHETWYND | British Columbia | TELUS | IND. TELCO | More |
| 251 | 401 | MOBILE | Alabama | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | WIRELESS PROV | More |
| 252 | 401 | ROCKYMOUNT | North Carolina | VOLO COMMUNICATIONS OF NORTH CAROLINA, INC. - NC | | More |
| 254 | 401 | ROSENTHAL | Texas | BROADVOX-CLEC, LLC - TX | | More |
| 256 | 401 | SYLACAUGA | Alabama | DELTACOM, INC. - AL | CLEC | More |
| 260 | 401 | FORT WAYNE | Indiana | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 262 | 401 | WAUKESHA | Wisconsin | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 267 | 401 | PHPHSBZN40 | Pennsylvania | OMNIPOINT COMMUNICATIONS ENTERPRISES, L.P. | WIRELESS PROV | More |
| 270 | 401 | ELIZABTHTN | Kentucky | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 281 | 401 | TOMBALL | Texas | SOUTHWESTERN BELL | RBOC | More |
| 289 | 401 | Brampton | Ontario | Iristel Inc. | | More |
| 301 | 401 | FREDERICK | Maryland | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 302 | 401 | DOVER | Delaware | LEVEL 3 COMMUNICATIONS, LLC - DE | CLEC | More |
| 303 | 401 | DENVER | Colorado | QWEST CORPORATION | RBOC | More |
| 304 | 401 | SISTERSVL | West Virginia | GATEWAY TELECOM LLC DBA STRATUS WAVE COMM LLC WV | CLEC | More |
| 305 | 401 | MIAMI | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 306 | 401 | Carrot River | Saskatchewan | SaskTel Mobility | | More |
| 307 | 401 | TORRINGTON | Wyoming | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 309 | 401 | PEORIA | Illinois | LEVEL 3 COMMUNICATIONS, LLC - IL | CLEC | More |
| 310 | 401 | SNMN SNMN | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 312 | 401 | CHICGOZN01 | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 313 | 401 | DETROITZN5 | Michigan | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 314 | 401 | KIRKWOOD | Missouri | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 315 | 401 | SYRACUSE | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 316 | 401 | ANDOVER | Kansas | SPRINT SPECTRUM L.P. | PCS | More |
| 317 | 401 | SHELBYVL | Indiana | SPRINT SPECTRUM L.P. | PCS | More |
| 318 | 401 | SHREVEPORT | Louisiana | AT&T LOCAL | CLEC | More |
| 320 | 401 | MAPLE LAKE | Minnesota | CHARTER FIBERLINK CCO, LLC - MN | | More |
| 321 | 401 | WKISSIMMEE | Florida | NUVOX COMMUNICATIONS | CLEC | More |
| 323 | 401 | LSAN DA 14 | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 330 | 401 | NEWPHLDLPH | Ohio | ICG TELECOM GROUP - OH | CLEC | More |
| 331 | 401 | NAPERVILLE | Illinois | LEVEL 3 COMMUNICATIONS, LLC - IL | CLEC | More |
| 334 | 401 | NOTASULGA | Alabama | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | WIRELESS PROV | More |
| 336 | 401 | LEVELCROSS | North Carolina | SURRY TELEPHONE MEMBERSHIP CORP. | IND. TELCO | More |
| 337 | 401 | DE RIDDER | Louisiana | LEVEL 3 COMMUNICATIONS, LLC - LA | | More |
| 346 | 401 | HOUSTON | Texas | AERIAL COMMUNICATIONS | WIRELESS PROV | More |
| 347 | 401 | NWYRCYZN06 | New York | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 352 | 401 | OCALA | Florida | EMBARQ FLORIDA, INC. DBA CENTURYLINK | IND. TELCO | More |
| 360 | 401 | SHELTON | Washington | UNITED STATES CELLULAR CORP. - WASHINGTON | WIRELESS PROV | More |
| 361 | 401 | SHINER | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 386 | 401 | DAYTONA BEACH | Florida | PEERLESS NETWORK OF FLORIDA, LLC - FL | | More |
| 401 | 401 | XXXXXXXXXX | Rhode Island | MULTIPLE OCN LISTING | | More |
| 402 | 401 | OMAHA | Nebraska | SPRINT SPECTRUM L.P. | PCS | More |
| 403 | 401 | Calgary | Alberta | Fido Solutions Inc. | | More |
| 404 | 401 | ATLANTA | Georgia | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 405 | 401 | OKLA CITY | Oklahoma | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 407 | 401 | ORLANDO | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 408 | 401 | SNJS WEST | California | SPRINT SPECTRUM L.P. | PCS | More |
| 410 | 401 | BRYNPKLNCM | Maryland | MCI WORLDCOM COMMUNICATIONS, INC. - MD | CLEC | More |
| 412 | 401 | PTTSBGZON5 | Pennsylvania | SPRINT SPECTRUM L.P. | PCS | More |
| 413 | 401 | XXXXXXXXXX | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 415 | 401 | SNFC CNTRL | California | PACIFIC BELL | RBOC | More |
| 416 | 401 | TORONTO | Ontario | Bell Canada | IND. TELCO | More |
| 418 | 401 | Saint-Agapit | Quebec | Videotron General Partnership | CLEC | More |
| 419 | 401 | METAMORA | Ohio | QUALSTAR COMMUNICATIONS, INC. - OH | | More |
| 423 | 401 | SODDYDAISY | Tennessee | US LEC OF TENNESSEE, INC | CLEC | More |
| 425 | 401 | BELLEVUE | Washington | QWEST CORPORATION | RBOC | More |
| 434 | 401 | LYNCHBURG | Virginia | VIRGINIA PCS ALLIANCE, L.C. | WIRELESS PROV | More |
| 435 | 401 | ROOSEVELT | Utah | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 438 | 401 | Montreal | Quebec | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 440 | 401 | TRINITY | Ohio | LEVEL 3 COMMUNICATIONS, LLC - OH | CLEC | More |
| 443 | 401 | BALTIMORE | Maryland | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | WIRELESS PROV | More |
| 450 | 401 | Contrecoeur | Quebec | Videotron General Partnership | CLEC | More |
| 469 | 401 | GRANDPRARI | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 478 | 401 | MILLEN | Georgia | COMCAST PHONE OF GEORGIA, LLC - GA | CLEC | More |
| 479 | 401 | FORT SMITH | Arkansas | SOUTHWESTERN BELL | RBOC | More |
| 480 | 401 | PHOENIX | Arizona | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 484 | 401 | W CHESTER | Pennsylvania | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 501 | 401 | LITTLEROCK | Arkansas | CONNECT COMMUNICATIONS CORP DBA CONNECT TOTAL | CLEC | More |
| 503 | 401 | PORTLAND | Oregon | QWEST CORPORATION | RBOC | More |
| 504 | 401 | KENNER | Louisiana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA | WIRELESS PROV | More |
| 505 | 401 | ALBUQURQUE | New Mexico | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM | WIRELESS PROV | More |
| 506 | 401 | Clair | New Brunswick | Aliant Telecom (Mobility) | | More |
| 507 | 401 | MARSHALL | Minnesota | SPRINT SPECTRUM L.P. | PCS | More |
| 508 | 401 | WAYLAND | Massachusetts | XO MASSACHUSETTS, INC. | CLEC | More |
| 510 | 401 | FRNK GRNLF | California | MPOWER COMMUNICATIONS CORP - CA | CLEC | More |
| 512 | 401 | AUSTIN | Texas | SOUTHWESTERN BELL | RBOC | More |
| 513 | 401 | CINCINNATI | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 514 | 401 | MONTREAL | Quebec | Bell Canada | IND. TELCO | More |
| 515 | 401 | DES MOINES | Iowa | CRYSTAL COMMUNICATIONS, INC - IA | CLEC | More |
| 516 | 401 | NASSAUZN05 | New York | METROCALL | WIRELESS PROV | More |
| 517 | 401 | MORENCI | Michigan | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 518 | 401 | GLENSFALLS | New York | NEUTRAL TANDEM-NEW YORK, LLC - NY | | More |
| 519 | 401 | CHATHAM | Ontario | Bell Mobility | WIRELESS PROV | More |
| 520 | 401 | TUCSON | Arizona | SPRINT SPECTRUM L.P. | PCS | More |
| 530 | 401 | AUBN MAIN | California | TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO | CLEC | More |
| 541 | 401 | LEBANON | Oregon | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | | More |
| 559 | 401 | AVENAL | California | O1 COMMUNICATIONS, INC. - CA | CLEC | More |
| 561 | 401 | JUPITER | Florida | TCG SOUTH FLORIDA | CLEC | More |
| 562 | 401 | DOWNEY | California | VERIZON CALIFORNIA INC.-CA (GTE) | IND. TELCO | More |
| 564 | 401 | PORT ANGELES | Washington | US WEST COMMUNICATIONS - PACIFIC NWEST BELL - WA | RBOC | More |
| 567 | 401 | MILAN | Ohio | LEVEL 3 COMMUNICATIONS, LLC - OH | CLEC | More |
| 570 | 401 | HAZLETON | Pennsylvania | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 573 | 401 | ST MARYS | Missouri | BIG RIVER TELEPHONE COMPANY, LLC - MO | | More |
| 574 | 401 | SOUTH BEND | Indiana | 365 WIRELESS, LLC | | More |
| 580 | 401 | PONCA CITY | Oklahoma | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 581 | 401 | Quebec | Quebec | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 586 | 401 | UTICA | Michigan | TELIGENT, INC. - MI | CLEC | More |
| 587 | 401 | Edmonton | Alberta | Iristel Inc. | | More |
| 601 | 401 | LAUREL | Mississippi | BANDWIDTH.COM CLEC, LLC - MS | | More |
| 602 | 401 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 603 | 401 | SALEM | New Hampshire | BELL ATLANTIC NYNEX MOBILE | WIRELESS PROV | More |
| 604 | 401 | Vancouver | British Columbia | Globalive Wireless Management Corp. | | More |
| 606 | 401 | LONDON | Kentucky | WINDSTREAM KENTUCKY EAST, INC. - LONDON | | More |
| 608 | 401 | MAZOMANIE | Wisconsin | MERRIMAC COMMUNICATIONS, LTD. - WI | | More |
| 609 | 401 | BARNEGAT | New Jersey | OMNIPOINT COMMUNICATIONS ENTERPRISES, L.P. | WIRELESS PROV | More |
| 610 | 401 | READING | Pennsylvania | AT&T LOCAL | CLEC | More |
| 612 | 401 | TWINCITIES | Minnesota | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 613 | 401 | PEMBROKE | Ontario | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 614 | 401 | DUBLIN | Ohio | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 615 | 401 | NASHVILLE | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 616 | 401 | GRAND RPDS | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
| 617 | 401 | CAMBRIDGE | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 618 | 401 | COLLINSVL | Missouri | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 619 | 401 | EL CAJON | California | PACIFIC BELL | RBOC | More |
| 620 | 401 | LEOTI | Kansas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 626 | 401 | EL MONTE | California | PACIFIC BELL | RBOC | More |
| 630 | 401 | AURORA | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 646 | 401 | NWYRCYZN03 | New York | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 647 | 401 | Toronto | Ontario | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 650 | 401 | BURLINGAME | California | PACIFIC BELL | RBOC | More |
| 651 | 401 | NORTH BRCH | Minnesota | BROOKS FIBER COMMUNICATIONS - MN | CLEC | More |
| 661 | 401 | BKFD MAIN | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 662 | 401 | TUPELO | Mississippi | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 667 | 401 | BALTIMORE | Maryland | LEVEL 3 COMMUNICATIONS, LLC - MD | CLEC | More |
| 678 | 401 | ATLANTA | Georgia | XO GEORGIA, INC. | CLEC | More |
| 682 | 401 | ARLINGTON | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 702 | 401 | LAS VEGAS | Nevada | SPRINT SPECTRUM L.P. | PCS | More |
| 703 | 401 | WASHINGTON ZONE 8 | Virginia | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 704 | 401 | CHARLOTTE | North Carolina | TIME WARNER COMMUNICATIONS AXS - NC - CHARLOTTE | CLEC | More |
| 705 | 401 | Barrie | Ontario | TELUS Integrated Communications | CLEC | More |
| 706 | 401 | WASHINGTON | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | WIRELESS PROV | More |
| 707 | 401 | ALMADEN | California | O1 COMMUNICATIONS, INC. - CA | CLEC | More |
| 708 | 401 | CHICAGO | Illinois | MCI WORLDCOM COMMUNICATIONS, INC. - IL | CLEC | More |
| 713 | 401 | HOUSTON | Texas | MCI WORLDCOM COMMUNICATIONS, INC. - TX | CLEC | More |
| 714 | 401 | ANAHEIM | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 715 | 401 | RHINELANDER | Wisconsin | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | WIRELESS PROV | More |
| 716 | 401 | BUFFALO/ROCHESTER | New York | SPRINT SPECTRUM L.P. | PCS | More |
| 717 | 401 | FAYETTEVL | Pennsylvania | ADELPHIA BUSINESS SOLUTIONS OF HARRISBURG, INC. | CLEC | More |
| 718 | 401 | NYCZ 3 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 719 | 401 | PUEBLO | Colorado | TELIGENT, INC. - CO | CLEC | More |
| 720 | 401 | DENVER | Colorado | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 724 | 401 | PITTSBURGH | Pennsylvania | TCG PITTSBURGH, INC. | CAP | More |
| 727 | 401 | TAMPA | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 732 | 401 | SOUTH AMBOY | New Jersey | TELCOVE INVESTMENT, LLC - NJ | CLEC | More |
| 734 | 401 | SALINE | Michigan | TELNET WORLDWIDE, INC. | CLEC | More |
| 740 | 401 | BELPRE | Ohio | AMERITECH OHIO | RBOC | More |
| 757 | 401 | NRFOLKZON1 | Virginia | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | WIRELESS PROV | More |
| 760 | 401 | TWENTYNINE PALMS | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 763 | 401 | CAMBRIDGE | Minnesota | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | | More |
| 765 | 401 | CRAWFORDSVILLE | Indiana | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 770 | 401 | ATLANTA NORTHEAST | Georgia | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 773 | 401 | CHICAGO | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 775 | 401 | ELKO | Nevada | LEVEL 3 COMMUNICATIONS, LLC - NV | CLEC | More |
| 778 | 401 | Victoria | British Columbia | Iristel Inc. | | More |
| 780 | 401 | EDMONTON | Alberta | TELUS | IND. TELCO | More |
| 781 | 401 | CANTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 785 | 401 | TIPTON | Kansas | NEX-TECH WIRELESS, LLC | | More |
| 786 | 401 | MIAMI | Florida | BANDWIDTH.COM CLEC, LLC - FL | | More |
| 787 | 401 | PIOPIEDRAS | Puerto Rico | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 801 | 401 | SALT LAKE | Utah | TELEPORT COMMUNICATIONS GROUP, INC. - UT | CLEC | More |
| 803 | 401 | COLUMBIA | South Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 804 | 401 | LYNCHBURG | Virginia | SPRINT SPECTRUM L.P.- VA | PCS | More |
| 805 | 401 | VAN NUYS | California | AMERICAN MESSAGING (AM), INC. | | More |
| 806 | 401 | LUBBOCK | Texas | TELEPORT COMMUNICATIONS GROUP - DALLAS | CAP | More |
| 812 | 401 | EVANSVILLE | Indiana | SIGECOM, LLC | CLEC | More |
| 813 | 401 | TAMPA | Florida | AERIAL COMMUNICATIONS | WIRELESS PROV | More |
| 814 | 401 | FISHERTOWN | Pennsylvania | IDT AMERICA CORP - PA | | More |
| 815 | 401 | KANKAKEE | Illinois | LEVEL 3 COMMUNICATIONS, LLC - IL | CLEC | More |
| 816 | 401 | KANSAS CITY | Missouri | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | | More |
| 817 | 401 | ARLINGTON | Texas | SPRINT SPECTRUM L.P. | PCS | More |
| 818 | 401 | LOS ANGELES | California | ALLEGIANCE TELECOM, INC. - CA | CLEC | More |
| 819 | 401 | TROIS RIVIERES | Quebec | Telebec Ltee. | IXC | More |
| 830 | 401 | SEGUIN FRANKLIN | Texas | SOUTHWESTERN BELL | RBOC | More |
| 831 | 401 | SAN FRANCISCO | California | BROADWING COMMUNICATIONS, LLC - CA | CLEC | More |
| 832 | 401 | CLEVELAND | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 843 | 401 | KINGSTREE | South Carolina | INTERMEDIA COMMUNICATIONS INC. - SC | CLEC | More |
| 845 | 401 | NEWBURGH | New York | SPRINT SPECTRUM L.P. | PCS | More |
| 847 | 401 | LOMBARD | Illinois | SPRINT SPECTRUM L.P. | PCS | More |
| 850 | 401 | DFUNIAKSPG | Florida | SOUTHERN COMMUNICATIONS SERVICES | WIRELESS PROV | More |
| 856 | 401 | BLACKWOOD | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 857 | 401 | SOUTH BOSTON | Massachusetts | BROADVIEW NETWORKS, INC. - MA | | More |
| 858 | 401 | LA JOLLA | California | TELEPORT COMMUNICATIONS GROUP - SAN DIEGO | CLEC | More |
| 859 | 401 | NICHOLASVILLE | Kentucky | TELCOVE OF KENTUCKY, INC. - KY | CLEC | More |
| 863 | 401 | WINTER HAVEN | Florida | VERIZON FLORIDA INC. | IND. TELCO | More |
| 864 | 401 | ANDERSON | South Carolina | SUNCOM DBA T-MOBILE USA | PCS | More |
| 865 | 401 | MASCOT | Tennessee | COMCAST PHONE OF TENNESSEE, LLC - TN | | More |
| 870 | 401 | BLACKFIHLK | Arkansas | WINDSTREAM COMMUNICATIONS, INC. - AR | CLEC | More |
| 872 | 401 | CHICGOZN07 | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 901 | 401 | WESTWHITEV | Tennessee | BANDWIDTH.COM CLEC, LLC - TN | | More |
| 902 | 401 | Halifax | Nova Scotia | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 903 | 401 | GILMER | Texas | LEVEL 3 COMMUNICATIONS, LLC - TX | CLEC | More |
| 904 | 401 | JACKSONVL | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 905 | 401 | St. Catharines-Thor | Ontario | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 906 | 401 | NEGAUNEE | Michigan | CHARTER FIBERLINK - MICHIGAN, LLC - MI | | More |
| 907 | 401 | CRAIG | Alaska | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 908 | 401 | WASHINGTON | New Jersey | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 909 | 401 | ONTARIO | California | AMERICAN MESSAGING (AM), INC. | | More |
| 910 | 401 | FAYETTEVILLE | North Carolina | TW TELECOM OF NORTH CAROLINA LLC - NC RALIEGH | CLEC | More |
| 912 | 401 | CORDELE | Georgia | BIRCH COMMUNICATIONS, INC. - GA | CLEC | More |
| 913 | 401 | KANSASCITY | Kansas | AERIAL COMMUNICATIONS | WIRELESS PROV | More |
| 914 | 401 | POUGHKEEPSIE | New York | MCI WORLDCOM COMMUNICATIONS INC. - NY | CLEC | More |
| 915 | 401 | EL PASO | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 916 | 401 | SACRAMENTO: MAIN DA | California | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 917 | 401 | NEW YORK CITY ZONE | New York | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 918 | 401 | TULSA | Oklahoma | BROOKS FIBER COMMUNICATIONS OF OKLAHOMA, INC. - OK | CAP | More |
| 919 | 401 | DURHAM LAKEWOOD | North Carolina | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC | IND. TELCO | More |
| 920 | 401 | APPLETON | Wisconsin | HEARTLAND COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 925 | 401 | SAN FRANCISCO | California | ALLEGIANCE TELECOM, INC. - CA | CLEC | More |
| 928 | 401 | TUBA CITY | Arizona | SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA | WIRELESS PROV | More |
| 931 | 401 | CLARKSVL | Tennessee | METRO PCS, INC. | | More |
| 937 | 401 | DAYTON | Ohio | INTERMEDIA COMMUNICATIONS INC. - OH | CLEC | More |
| 939 | 401 | BAYAMONNOR | Puerto Rico | PUERTO RICO TELCO DBA VERIZON WIRELESS PUERTO RICO | WIRELESS PROV | More |
| 951 | 401 | TEMECULA | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 952 | 401 | EXCELSIOR | Minnesota | QWEST CORPORATION | RBOC | More |
| 954 | 401 | FORT LAUDERDALE | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 956 | 401 | LAREDO | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 970 | 401 | VAIL | Colorado | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | WIRELESS PROV | More |
| 972 | 401 | DALLAS NORTHLAKE | Texas | SOUTHWESTERN BELL | RBOC | More |
| 973 | 401 | MORRISTOWN | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 978 | 401 | LEOMINSTER | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 979 | 401 | BAY CITY | Texas | SOUTHWESTERN BELL | RBOC | More |
| 985 | 401 | PONCHATOUL | Louisiana | HUNT TELECOMMUNICATIONS, LLC - LA | | More |
| 989 | 401 | SAGINAW | Michigan | CHARTER FIBERLINK - MICHIGAN, LLC - MI | | More |
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