Area
Code | Prefix | City/Switch Name
(Click for city search) | State/Prov.
Area Map | Telephone Company
Web link | Telco
Type | More
Info |
|---|
| 201 | 321 | FAIR LAWN | New Jersey | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | WIRELESS PROV | More |
| 202 | 321 | WSHNGTNZN1 | Maryland | SPRINT SPECTRUM L.P. | PCS | More |
| 203 | 321 | STAMFORD | Connecticut | SOUTHERN NEW ENGLAND TELEPHONE CO. | IND. TELCO | More |
| 204 | 321 | BRANDON | Manitoba | MTS Inc. | IND. TELCO | More |
| 205 | 321 | BIRMINGHAM | Alabama | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 206 | 321 | SEATTLE | Washington | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 207 | 321 | PORTLAND | Maine | CTC COMMUNICATIONS CORP. - ME | CLEC | More |
| 208 | 321 | BOISE | Idaho | QWEST CORPORATION | RBOC | More |
| 209 | 321 | TRACY | California | SPRINT SPECTRUM L.P. | PCS | More |
| 210 | 321 | SANANTONIO | Texas | SOUTHWESTERN BELL | RBOC | More |
| 212 | 321 | NWYRCYZN01 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 213 | 321 | LSAN DA 01 | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 214 | 321 | DALLAS | Texas | SOUTHWESTERN BELL | RBOC | More |
| 215 | 321 | YARDLEY | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 216 | 321 | CLEVELAND | Ohio | AMERITECH OHIO | RBOC | More |
| 217 | 321 | SPRINGFLD | Illinois | MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- IL | CLEC | More |
| 218 | 321 | FERGUS FLS | Minnesota | LEVEL 3 COMMUNICATIONS, LLC - MN | | More |
| 219 | 321 | GARY | Indiana | SPRINT SPECTRUM L.P. | PCS | More |
| 224 | 321 | WAUKEGAN | Illinois | SPRINT SPECTRUM L.P. | PCS | More |
| 226 | 321 | Otterville | Ontario | Execulink Telecom Inc. | IND. TELCO | More |
| 229 | 321 | LUMPKIN | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | WIRELESS PROV | More |
| 234 | 321 | GREENSBURG | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 239 | 321 | FORT MYERS | Florida | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 240 | 321 | OAKLAND | Maryland | USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD | WIRELESS PROV | More |
| 248 | 321 | TROY | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
| 250 | 321 | Fort Nelson | British Columbia | TELUS Mobility | WIRELESS PROV | More |
| 251 | 321 | ATMORE | Alabama | SPRINT SPECTRUM L.P. | PCS | More |
| 252 | 321 | GREENVILLE | North Carolina | CAROLINA TEL AND TEL CO., LLC DBA CENTURYLINK | IND. TELCO | More |
| 253 | 321 | SUMNER | Washington | BROADWING COMMUNICATIONS, LLC - WA | CLEC | More |
| 254 | 321 | LAGUNA PK | Texas | QWEST COMMUNICATIONS COMPANY, LLC | CLEC | More |
| 256 | 321 | ATHENS | Alabama | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 262 | 321 | RACINE | Wisconsin | AMERITECH WISCONSIN | RBOC | More |
| 267 | 321 | PHLDLPHZN1 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 269 | 321 | KALAMAZOO | Michigan | AMERITECH MICHIGAN | RBOC | More |
| 270 | 321 | LEBANON | Kentucky | TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY | | More |
| 276 | 321 | WISE | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 281 | 321 | SUGAR LAND | Texas | WINDSTREAM SUGAR LAND, INC. | IND. TELCO | More |
| 289 | 321 | FORT ERIE | Ontario | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 301 | 321 | WSNGTNZN11 | Maryland | TELCOVE OPERATIONS, INC. - MD | CLEC | More |
| 302 | 321 | DAGSBORO | Delaware | CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - DE | CLEC | More |
| 303 | 321 | DENVER | Colorado | QWEST CORPORATION | RBOC | More |
| 304 | 321 | FRANKLIN | West Virginia | FIBERNET, LLC | CLEC | More |
| 305 | 321 | MIAMI | Florida | SPRINT SPECTRUM L.P. | PCS | More |
| 306 | 321 | Saskatoon | Saskatchewan | SaskTel Mobility | | More |
| 307 | 321 | RAWLINS | Wyoming | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | WIRELESS PROV | More |
| 309 | 321 | MORTON | Illinois | LEVEL 3 COMMUNICATIONS, LLC - IL | CLEC | More |
| 310 | 321 | EL SEGUNDO | California | MPOWER COMMUNICATIONS CORP - CA | CLEC | More |
| 312 | 321 | CHICGOZN01 | Illinois | AMERITECH ILLINOIS | RBOC | More |
| 313 | 321 | DETROITZN5 | Michigan | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 314 | 321 | ST LOUIS | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 315 | 321 | WATERTOWN | New York | CONTACT COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 316 | 321 | EL DORADO | Kansas | SOUTHWESTERN BELL | RBOC | More |
| 317 | 321 | INDIANAPLS | Indiana | AMERITECH INDIANA | RBOC | More |
| 318 | 321 | MONROE | Louisiana | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 319 | 321 | IOWA CITY | Iowa | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | WIRELESS PROV | More |
| 320 | 321 | MONTEVIDEO | Minnesota | ONVOY, INC. | CLEC | More |
| 323 | 321 | LSAN DA 09 | California | PACIFIC BELL | RBOC | More |
| 330 | 321 | MEDINA | Ohio | SPRINT SPECTRUM L.P. | PCS | More |
| 331 | 321 | AURORA | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 334 | 321 | AUBURN | Alabama | DELTACOM, INC. - AL | CLEC | More |
| 336 | 321 | GREENSBORO | North Carolina | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 337 | 321 | NEW IBERIA | Louisiana | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 346 | 321 | CHANNELVW | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 347 | 321 | NWYRCYZN11 | New York | LEVEL 3 COMMUNICATIONS, LLC - NY | CLEC | More |
| 352 | 321 | LEESBURG | Florida | METROPCS NETWORKS, LLC | | More |
| 360 | 321 | SO WHIDBEY | Washington | WHIDBEY TELEPHONE CO. | IND. TELCO | More |
| 361 | 321 | YOAKUM | Texas | FITCH, F. CARY | WIRELESS | More |
| 385 | 321 | SALT LAKE | Utah | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | WIRELESS PROV | More |
| 401 | 321 | HOPEVALLEY | Rhode Island | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - RI | CAP | More |
| 402 | 321 | OMAHA | Nebraska | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 403 | 321 | ASSUMPTION | Alberta | TELUS Mobility | CAP | More |
| 404 | 321 | ATLANTA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 405 | 321 | NORMAN | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 406 | 321 | COLUMBUS | Montana | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 407 | 321 | SANFORD | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 408 | 321 | SNJS NORTH | California | PACIFIC BELL | RBOC | More |
| 410 | 321 | TOWSON | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 412 | 321 | PTTSBGZON1 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 413 | 321 | PITTSFIELD | Massachusetts | GLOBAL NAPS, INC.-MA | CLEC | More |
| 414 | 321 | MILWAUKZN1 | Wisconsin | AMERITECH WISCONSIN | RBOC | More |
| 415 | 321 | SNFC CNTRL | California | U.S. TELEPACIFIC CORP. - CA | CLEC | More |
| 416 | 321 | TORONTO | Ontario | Bell Canada | IND. TELCO | More |
| 417 | 321 | NEVADA | Missouri | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | | More |
| 418 | 321 | Alma | Quebec | Bell Mobility | WIRELESS PROV | More |
| 419 | 321 | TOLEDO | Ohio | AMERITECH OHIO | RBOC | More |
| 423 | 321 | CHATTNOOGA | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 424 | 321 | EL SEGUNDO | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 425 | 321 | SILVERLAKE | Washington | LEVEL 3 COMMUNICATIONS, LLC - WA | CLEC | More |
| 434 | 321 | VICTORIA | Virginia | LEVEL 3 COMMUNICATIONS, LLC - VA | CLEC | More |
| 438 | 321 | Montreal | Quebec | Bell Mobility | WIRELESS PROV | More |
| 440 | 321 | E CLARIDON | Ohio | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 442 | 321 | HOMESTDVLY | California | MCI WORLDCOM COMMUNICATIONS, INC., CA | CLEC | More |
| 443 | 321 | ANNAPOLIS | Maryland | PAETEC COMMUNICATIONS, INC. - MD | CLEC | More |
| 450 | 321 | LONGUEUIL | Quebec | Rogers Communications Partnership (Cable) | CLEC | More |
| 469 | 321 | IRVING | Texas | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 478 | 321 | MACON | Georgia | AT&T LOCAL | CLEC | More |
| 479 | 321 | BENTONVL | Arkansas | QWEST COMMUNICATIONS COMPANY, LLC | CLEC | More |
| 480 | 321 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 484 | 321 | PHPHSBZN28 | Pennsylvania | NETCARRIER TELECOM, INC. - PA | | More |
| 501 | 321 | HOTSPRINGS | Arkansas | SOUTHWESTERN BELL | RBOC | More |
| 502 | 321 | SHELBYVL | Kentucky | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 503 | 321 | PORTLAND | Oregon | QWEST CORPORATION | RBOC | More |
| 504 | 321 | NEWORLEANS | Louisiana | LEVEL 3 COMMUNICATIONS, LLC - LA | | More |
| 505 | 321 | ALBUQURQUE | New Mexico | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM | WIRELESS PROV | More |
| 506 | 321 | St. Stephen | New Brunswick | TELUS Mobility | PCS | More |
| 507 | 321 | NORTHFIELD | Minnesota | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 508 | 321 | MEDWAY | Massachusetts | COMCAST PHONE OF MASSACHUSETTS, INC. - MA | CLEC | More |
| 509 | 321 | SPOKANE | Washington | ELECTRIC LIGHTWAVE, LLC DBA INTEGRA TELECOM - WA | CLEC | More |
| 510 | 321 | OKLD MN-PD | California | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 512 | 321 | BASTROP | Texas | SOUTHWESTERN BELL | RBOC | More |
| 513 | 321 | CINCINNATI | Ohio | CINCINNATI BELL, INC. | IND. TELCO | More |
| 514 | 321 | MONTREAL | Quebec | Bell Canada | IND. TELCO | More |
| 515 | 321 | DES MOINES | Iowa | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | WIRELESS PROV | More |
| 516 | 321 | BABYLON | New York | LOCAL ACCESS LLC - NY | | More |
| 517 | 321 | LANSING | Michigan | AMERITECH MICHIGAN | RBOC | More |
| 518 | 321 | GLENSFALLS | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 519 | 321 | MOUNT FOREST | Ontario | Bell Canada | IND. TELCO | More |
| 520 | 321 | TUCSON | Arizona | QWEST CORPORATION | RBOC | More |
| 530 | 321 | CHICO | California | SPRINT SPECTRUM L.P. | PCS | More |
| 534 | 321 | NEW AUBURN | Wisconsin | QWEST COMMUNICATIONS COMPANY, LLC | CLEC | More |
| 540 | 321 | CULPEPER | Virginia | LUMOS NETWORKS INC. - VA | CLEC | More |
| 541 | 321 | JUNCTIONCY | Oregon | SPRINT SPECTRUM L.P. | PCS | More |
| 551 | 321 | JERSEYCITY | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 559 | 321 | CLOVIS | California | BROOKS FIBER COMMUNICATIONS OF CALIFORNIA - CA | CLEC | More |
| 561 | 321 | VERO BEACH | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 562 | 321 | WHITTIER | California | VERIZON CALIFORNIA INC.-CA (GTE) | IND. TELCO | More |
| 563 | 321 | CLINTON | Iowa | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | WIRELESS PROV | More |
| 567 | 321 | NO BALTIMR | Ohio | TIME WARNER CABLE INFORMATION SVCS (OHIO) - OH | | More |
| 570 | 321 | WILLIAMSPT | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 571 | 321 | BRADDOCK | Virginia | CAVALIER TELEPHONE, LLC | CLEC | More |
| 573 | 321 | ADVANCE | Missouri | LEVEL 3 COMMUNICATIONS, LLC - MO | CLEC | More |
| 574 | 321 | SOUTH BEND | Indiana | UNITED STATES CELLULAR CORP. - INDIANA | WIRELESS PROV | More |
| 580 | 321 | CLINTON | Oklahoma | CROSS-VALLIANT CELLULAR PARTNERSHIP | | More |
| 581 | 321 | Sacre-Coeur | Quebec | Videotron General Partnership | CLEC | More |
| 585 | 321 | HENRIETTA | New York | FRONTIER TELEPHONE OF ROCHESTER INC | IND. TELCO | More |
| 586 | 321 | MT CLEMENS | Michigan | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 587 | 321 | Three Hills | Alberta | TELUS Mobility | WIRELESS PROV | More |
| 601 | 321 | JACKSON | Mississippi | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 602 | 321 | PHOENIX | Arizona | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 603 | 321 | NASHUA | New Hampshire | BELL ATLANTIC NYNEX MOBILE | WIRELESS PROV | More |
| 604 | 321 | VANCOUVER | British Columbia | TELUS | IND. TELCO | More |
| 605 | 321 | SIOUX FLS | South Dakota | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | WIRELESS PROV | More |
| 607 | 321 | ENDICOTT | New York | TW TELECOM OF NEW YORK L.P. - NY | CLEC | More |
| 608 | 321 | MADISON | Wisconsin | TDS METROCOM INC. - WI | CLEC | More |
| 609 | 321 | PEMBERTON | New Jersey | BROADWING COMMUNICATIONS, LLC - NJ | CLEC | More |
| 610 | 321 | EAGLE | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 612 | 321 | TWINCITIES | Minnesota | QWEST CORPORATION | RBOC | More |
| 613 | 321 | OTTAWA | Ontario | Rogers Communications Partnership (Cable) | CLEC | More |
| 614 | 321 | CANALWHSTR | Ohio | NUVOX COMMUNICATIONS OF OHIO, INC. - OH | | More |
| 615 | 321 | NASHVILLE | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 616 | 321 | PORTAGE | Michigan | MICHIGAN BELL TEL CO - MI | RBOC | More |
| 617 | 321 | WATERTOWN | Massachusetts | BROADVIEW NETWORKS, INC. - MA | | More |
| 618 | 321 | COLLINSVL | Illinois | AMERICAN MESSAGING (AM), INC. | | More |
| 619 | 321 | SNDG SNDG | California | TELEPORT COMMUNICATIONS GROUP - SAN DIEGO | CLEC | More |
| 620 | 321 | BUSHTON | Kansas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS | WIRELESS PROV | More |
| 623 | 321 | PHOENIX | Arizona | PAC - WEST TELECOMM, INC. - AZ | CLEC | More |
| 626 | 321 | ARCADIA | California | TELEPORT COMMUNICATIONS GROUP - LOS ANGELES | CLEC | More |
| 630 | 321 | HINSDALE | Illinois | AMERITECH ILLINOIS | RBOC | More |
| 631 | 321 | BABYLON | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 636 | 321 | LADUE | Missouri | WINDSTREAM NUVOX MISSOURI INC. - MO | CLEC | More |
| 641 | 321 | KLEMME | Iowa | COMMUNICATIONS 1 NETWORK, INC. | IND. TELCO | More |
| 646 | 321 | NEW YORK CITY ZONE | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 647 | 321 | Toronto | Ontario | TELUS Mobility | CAP | More |
| 650 | 321 | PALO ALTO | California | PACIFIC BELL | RBOC | More |
| 651 | 321 | MINNEAPOLIS | Minnesota | TCG MINNESOTA, INC. | CLEC | More |
| 657 | 321 | SANTA ANA | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 661 | 321 | BAKERSFIELD | California | PACIFIC BELL | RBOC | More |
| 662 | 321 | TUPELO | Mississippi | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS | WIRELESS PROV | More |
| 678 | 321 | ATLANTA | Georgia | US LEC OF GEORGIA, INC. | CLEC | More |
| 681 | 321 | SALEM | West Virginia | FIBERNET, LLC | CLEC | More |
| 682 | 321 | ARLINGTON | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 701 | 321 | STRASBURG | North Dakota | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND | WIRELESS PROV | More |
| 702 | 321 | LAS VEGAS | Nevada | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 703 | 321 | BRADDOCK | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 704 | 321 | MATTHEWS | North Carolina | WINDSTREAM NORTH CAROLINA, INC. | IND. TELCO | More |
| 705 | 321 | BARRIE | Ontario | TELUS Mobility | PCS | More |
| 706 | 321 | COLUMBUS | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 707 | 321 | SANTA ROSA | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 708 | 321 | OAK FOREST SOUTH | Illinois | OVATION COMMUNICATIONS OF ILLINOIS, INC. | CLEC | More |
| 713 | 321 | HOUSTON CLAY | Texas | SOUTHWESTERN BELL | RBOC | More |
| 714 | 321 | ANAHEIM | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 715 | 321 | STEVENS POINT | Wisconsin | NEW CELL, INC. DBA CELLCOM | WIRELESS PROV | More |
| 716 | 321 | RUSH-HENRIETTA | New York | PEERLESS NETWORK OF NEW YORK, LLC - NY | | More |
| 717 | 321 | LITITZ | Pennsylvania | WINDSTREAM D & E SYSTEMS, INC. - PA | CLEC | More |
| 718 | 321 | NYCZ 9 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 719 | 321 | COLORADO SPRINGS | Colorado | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 720 | 321 | DENVER | Colorado | QWEST CORPORATION | RBOC | More |
| 724 | 321 | GIBSONIA | Pennsylvania | SPRINT SPECTRUM L.P. | PCS | More |
| 727 | 321 | SAINT PETERSBURG | Florida | VERIZON FLORIDA INC. | IND. TELCO | More |
| 732 | 321 | METUCHEN | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 734 | 321 | MAYBEE | Michigan | TELNET WORLDWIDE, INC. | CLEC | More |
| 740 | 321 | GRANVILLE | Ohio | WINDSTREAM OHIO, INC. | IND. TELCO | More |
| 754 | 321 | FTLAUDERDL | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 757 | 321 | NORFOLK | Virginia | COX VIRGINIA TELCOM, INC. - VA | CLEC | More |
| 760 | 321 | RANCHO MIRAGE | California | VERIZON CALIFORNIA INC.-CA (GTE) | IND. TELCO | More |
| 763 | 321 | TWINCITIES | Minnesota | AERIAL COMMUNICATIONS | WIRELESS PROV | More |
| 765 | 321 | REDKEY | Indiana | LEVEL 3 COMMUNICATIONS, LLC - IN | CLEC | More |
| 769 | 321 | HEIDELBERG | Mississippi | COMCAST PHONE OF MISSISSIPPI, LLC - MS | | More |
| 770 | 321 | MARIETTA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 772 | 321 | VERO BEACH | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 773 | 321 | CHICAGO | Illinois | BROADWING COMMUNICATIONS, LLC - IL | CLEC | More |
| 774 | 321 | AUBURN | Massachusetts | CBEYOND COMMUNICATIONS, LLC - MA | | More |
| 775 | 321 | RENO | Nevada | NEVADA BELL | RBOC | More |
| 778 | 321 | Vancouver | British Columbia | Fido Solutions Inc. | | More |
| 780 | 321 | ASSUMPTION | Alberta | TELUS | IND. TELCO | More |
| 781 | 321 | MALDEN | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 785 | 321 | ST MARYS | Kansas | WTC COMMUNICATIONS, INC. - KS | | More |
| 787 | 321 | TRUJILLO ALTO | Puerto Rico | PUERTO RICO TELCO DBA VERIZON WIRELESS PUERTO RICO | WIRELESS PROV | More |
| 801 | 321 | SALT LAKE CITY | Utah | QWEST CORPORATION | RBOC | More |
| 802 | 321 | ALBANY | Vermont | TELCOVE OF VERMONT, INC. - VT | CLEC | More |
| 803 | 321 | NEWBERRY | South Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 804 | 321 | RICHMOND | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 805 | 321 | SANMARGART | California | U.S. TELEPACIFIC CORP. - CA | CLEC | More |
| 806 | 321 | LUBBOCK PORTER SHER | Texas | SOUTHWESTERN BELL | RBOC | More |
| 808 | 321 | HONOLULU | Hawaii | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - HI | WIRELESS PROV | More |
| 810 | 321 | WARREN | Michigan | PEERLESS NETWORK OF MICHIGAN, LLC - MI | | More |
| 812 | 321 | WHEATLAND | Indiana | FRONTIER NORTH, INC. - IN | IND. TELCO | More |
| 813 | 321 | TAMPACEN | Florida | BRIGHT HOUSE NTWS INFORMATION SVCS (FLORIDA) - FL | | More |
| 814 | 321 | CLARION | Pennsylvania | AT&T LOCAL | CLEC | More |
| 815 | 321 | CHICAGO | Illinois | XO ILLINOIS, INC. | CLEC | More |
| 816 | 321 | KANSASCITY | Missouri | SUREWEST KANSAS LICENSES, LLC - KS | | More |
| 817 | 321 | FORT WORTH EDISON | Texas | SOUTHWESTERN BELL | RBOC | More |
| 818 | 321 | SHERMAN OAKS | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 819 | 321 | ST AGATHE | Quebec | Bell Canada | IND. TELCO | More |
| 828 | 321 | ANDREWS | North Carolina | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC | IND. TELCO | More |
| 830 | 321 | FREDECKSBG | Texas | BANDWIDTH.COM CLEC, LLC - TX | | More |
| 832 | 321 | HOUSTON | Texas | ICG CHOICE COM, L.P. - TX | CLEC | More |
| 843 | 321 | BEAUFORT | South Carolina | SPRINT SPECTRUM L.P. | PCS | More |
| 845 | 321 | MIDDLETOWN | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 847 | 321 | CHICAGO | Illinois | AT&T LOCAL | CLEC | More |
| 848 | 321 | FREEHOLD | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 850 | 321 | JACKSONVILLE | Florida | SPRINT SPECTRUM L.P. | PCS | More |
| 856 | 321 | CHERRY HILL | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 857 | 321 | BOSTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 858 | 321 | SAN DIEGO: MIRA MES | California | AT&T WIRELESS SERVICES | WIRELESS PROV | More |
| 859 | 321 | LEXINGTON | Kentucky | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | WIRELESS PROV | More |
| 860 | 321 | HARTFORD | Connecticut | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 862 | 321 | PASSAIC | New Jersey | OMNIPOINT COMMUNICATIONS, INC. - NJ | WIRELESS PROV | More |
| 864 | 321 | GREENVILLE | South Carolina | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 865 | 321 | KNOXVILLE | Tennessee | SPRINT SPECTRUM L.P. | PCS | More |
| 870 | 321 | MOUNTAIN HOME | Arkansas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | WIRELESS PROV | More |
| 901 | 321 | MEMPHIS | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 902 | 321 | Aylesford | Nova Scotia | TELUS Mobility | PCS | More |
| 903 | 321 | CORSICANA | Texas | Cox Texas Telcom, L.P. - TX | | More |
| 904 | 321 | FERNANDINA BEACH | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 905 | 321 | ST CATHARINES THORO | Ontario | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 906 | 321 | NEWBERRY | Michigan | TELNET WORLDWIDE, INC. | CLEC | More |
| 907 | 321 | JUNEAU | Alaska | GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION | PCS | More |
| 908 | 321 | UNIONVILLE (UNION) | New Jersey | TELEPORT COMMUNICATIONS GROUP - NEW YORK - NJ | CAP | More |
| 909 | 321 | RIVERSIDE | California | TELSCAPE COMMUNICATONS, INC. - CA | CLEC | More |
| 910 | 321 | FAYETTEVILLE MCGILV | North Carolina | CAROLINA TEL AND TEL CO., LLC DBA CENTURYLINK | IND. TELCO | More |
| 912 | 321 | MACON | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | WIRELESS PROV | More |
| 913 | 321 | KANSAS CITY | Kansas | SOUTHWESTERN BELL | RBOC | More |
| 914 | 321 | WHITE PLAINS | New York | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 915 | 321 | CANUTILLO | Texas | TELEPORT COMMUNICATIONS GROUP - DALLAS | CAP | More |
| 916 | 321 | SACRAMENTO | California | PACIFIC BELL | RBOC | More |
| 917 | 321 | NEW YORK CITY ZONE | New York | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 918 | 321 | KIEFER | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 919 | 321 | DURHAM | North Carolina | TELCOVE OPERATIONS, INC. - NC | CLEC | More |
| 920 | 321 | GREEN BAY | Wisconsin | MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- WI | CLEC | More |
| 925 | 321 | LIVERMORE | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 928 | 321 | ST JOHNS | Arizona | SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA | WIRELESS PROV | More |
| 929 | 321 | NWYRCYZN14 | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 931 | 321 | LAWRENCEBG | Tennessee | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | WIRELESS PROV | More |
| 936 | 321 | RIVERBROOK | Texas | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | IND. TELCO | More |
| 937 | 321 | CINCINNATI | Ohio | SPRINT SPECTRUM L.P. | PCS | More |
| 940 | 321 | LAKE DALLAS | Texas | CENTURYTEL OF LAKE DALLAS, INC. DBA CENTURYLINK | IND. TELCO | More |
| 941 | 321 | SARASOTA | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 949 | 321 | NEWPORT BEACH | California | THE TELEPHONE CONNECTION LOCAL SERVICES, LLC | CLEC | More |
| 951 | 321 | RIVERSIDE | California | PACIFIC BELL | RBOC | More |
| 954 | 321 | FORT LAUDERDALE | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 956 | 321 | MISSION | Texas | SPRINT SPECTRUM L.P. | PCS | More |
| 970 | 321 | CRAIG | Colorado | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | | More |
| 971 | 321 | PORTLAND | Oregon | QWEST CORPORATION | RBOC | More |
| 972 | 321 | GRAND PRAIRIE | Texas | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 973 | 321 | NEWARK | New Jersey | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 978 | 321 | SUDBURY | Massachusetts | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | | More |
| 980 | 321 | CHARLOTTE | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 984 | 321 | RALEIGH | North Carolina | BELLSOUTH TELECOMM INC - NC | RBOC | More |
| 985 | 321 | PONCHATOUL | Louisiana | DELTACOM, INC. - LA | CLEC | More |
| 989 | 321 | SAGINAW | Michigan | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
|
