Area
Code | Prefix | City/Switch Name
(Click for city search) | State/Prov.
Area Map | Telephone Company
Web link | Telco
Type | More
Info |
|---|
| 201 | 521 | JERSEYCITY | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 202 | 521 | WSHNGTNZN1 | District of Columbia | LEVEL 3 COMMUNICATIONS, LLC - DC | CLEC | More |
| 203 | 521 | BRIDGEPORT | Connecticut | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | WIRELESS PROV | More |
| 204 | 521 | Portage La Prairie | Manitoba | TELUS Integrated Communications | CLEC | More |
| 205 | 521 | BIRMINGHAM | Alabama | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 206 | 521 | SEATTLE | Washington | QWEST CORPORATION | RBOC | More |
| 207 | 521 | HOULTON | Maine | CONSOLIDATED COMM OF NO. NEW ENGLAND-ME | RBOC | More |
| 208 | 521 | IDAHOFALLS | Idaho | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ID | WIRELESS PROV | More |
| 209 | 521 | MODESTO | California | PACIFIC BELL | RBOC | More |
| 210 | 521 | SANANTONIO | Texas | SOUTHWESTERN BELL | RBOC | More |
| 212 | 521 | NWYRCYZN01 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 213 | 521 | LSAN DA 10 | California | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | CLEC | More |
| 214 | 521 | DALLAS | Texas | SOUTHWESTERN BELL | RBOC | More |
| 215 | 521 | PHLDLPHZN1 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 216 | 521 | CLEVELAND | Ohio | OHIO BELL TEL CO | RBOC | More |
| 217 | 521 | DECATUR | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
| 218 | 521 | CROOKSTON | Minnesota | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 224 | 521 | GLENVIEW | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 225 | 521 | BATONROUGE | Louisiana | ONVOY, LLC - LA | | More |
| 226 | 521 | Arkona | Ontario | Execulink Telecom Inc. | IND. TELCO | More |
| 229 | 521 | VIENNA | Georgia | MCC TELEPHONY OF GEORGIA, LLC - GA | | More |
| 234 | 521 | CANTON | Ohio | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 240 | 521 | LAUREL236 | Maryland | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 248 | 521 | SOUTHFIELD | Michigan | METROPCS, INC. | | More |
| 250 | 521 | AIL | British Columbia | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 251 | 521 | GRAND BAY | Alabama | ONVOY, LLC - AL | | More |
| 252 | 521 | KINSTON | North Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | WIRELESS PROV | More |
| 254 | 521 | KILLEEN | Texas | ONVOY, LLC - TX | | More |
| 256 | 521 | TALLADEGA | Alabama | TELEPORT COMMUNICATIONS AMERICA, LLC - AL | CLEC | More |
| 262 | 521 | WAUKESHA | Wisconsin | WISCONSIN BELL INC | RBOC | More |
| 267 | 521 | PHLDLPHZN2 | Pennsylvania | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | WIRELESS PROV | More |
| 269 | 521 | BLOOMINGDL | Michigan | BLOOMINGDALE TEL. CO. | IND. TELCO | More |
| 270 | 521 | ROBARDS | Kentucky | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 276 | 521 | CHILHOWIE | Virginia | LEVEL 3 COMMUNICATIONS, LLC - VA | CLEC | More |
| 281 | 521 | KEMAH | Texas | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | IND. TELCO | More |
| 289 | 521 | Cooksville | Ontario | Rogers Communications Partnership (Cable) | | More |
| 301 | 521 | WSHNGTNZN6 | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 302 | 521 | WILMINGTON | Delaware | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 303 | 521 | DENVER | Colorado | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 304 | 521 | HNTNGTNZN1 | West Virginia | FRONTIER WEST VIRGINIA INC. | RBOC | More |
| 305 | 521 | NORTH DADE | Florida | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | CLEC | More |
| 306 | 521 | YORKTON | Saskatchewan | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 309 | 521 | ANDOVER | Illinois | CAMBRIDGE TEL. CO. | IND. TELCO | More |
| 310 | 521 | SAN PEDRO | California | PACIFIC BELL | RBOC | More |
| 312 | 521 | CHICGOZN01 | Illinois | AT&T - LOCAL | CLEC | More |
| 313 | 521 | DETROITZN2 | Michigan | MICHIGAN BELL TEL CO | RBOC | More |
| 314 | 521 | LADUE | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 315 | 521 | GENEVA | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 317 | 521 | FISHERS | Indiana | INDIANA BELL TEL CO INC | RBOC | More |
| 318 | 521 | NATCHITCHS | Louisiana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA | WIRELESS PROV | More |
| 319 | 521 | CEDAR RPDS | Iowa | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 321 | 521 | COCOABEACH | Florida | ONVOY, LLC - FL | | More |
| 323 | 521 | LSAN DA 08 | California | PACIFIC BELL | RBOC | More |
| 330 | 521 | MILLERSBG | Ohio | CENTURYLINK COMMUNICATIONS, LLC | | More |
| 334 | 521 | AUBURN | Alabama | WINDSTREAM NUVOX, INC. | CLEC | More |
| 336 | 521 | ASHEBORO | North Carolina | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 337 | 521 | | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 346 | 521 | SUGAR LAND | Texas | ONVOY, LLC - TX | | More |
| 347 | 521 | NWYRCYZN06 | New York | BROADVIEW NETWORKS, INC. - NY | CLEC | More |
| 352 | 521 | DADE CITY | Florida | CENTURYLINK OF FLORIDA, INC. (UNITED) | IND. TELCO | More |
| 360 | 521 | VANCOUVER | Washington | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 361 | 521 | TAFT | Texas | AWESOME PAGING, INC. | WIRELESS PROV | More |
| 385 | 521 | SPANIHFORK | Utah | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 401 | 521 | PROVIDENCE | Rhode Island | VERIZON NEW ENGLAND INC. | RBOC | More |
| 402 | 521 | ASHLAND | Nebraska | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | | More |
| 403 | 521 | CALGARY | Alberta | TELUS | IND. TELCO | More |
| 404 | 521 | ATLANTA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 405 | 521 | OKLA CITY | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 406 | 521 | TOWNSEND | Montana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | WIRELESS PROV | More |
| 407 | 521 | ORLANDO | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 408 | 521 | SNJS WEST | California | ONVOY, LLC - CA | | More |
| 410 | 521 | RANDALLSTN | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 412 | 521 | PTTSBGZON1 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 413 | 521 | BRIMFIELD | Massachusetts | CHOICE ONE COMMUNICATIONS, INC. - MA | CLEC | More |
| 415 | 521 | SNFC JUNPR | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 416 | 521 | TORONTO | Ontario | Bell Canada | IND. TELCO | More |
| 417 | 521 | SPRINGFLD | Missouri | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | CLEC | More |
| 418 | 521 | QUEBEC | Quebec | Bell Canada | IND. TELCO | More |
| 419 | 521 | MANSFIELD | Ohio | UNITED TEL. CO. OF OHIO DBA CENTURYLINK | IND. TELCO | More |
| 423 | 521 | CHATTNOOGA | Tennessee | POWERTEL ATLANTA LICENSES, INC. | WIRELESS PROV | More |
| 424 | 521 | CMTN CMTN | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 425 | 521 | EVERETT | Washington | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 440 | 521 | WILLOUGHBY | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 443 | 521 | CAMBRIDGE | Maryland | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | WIRELESS PROV | More |
| 450 | 521 | GRANBY | Quebec | Bell Mobility | WIRELESS PROV | More |
| 469 | 521 | CARROLLTON | Texas | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 470 | 521 | ATLANTA NE | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | WIRELESS PROV | More |
| 478 | 521 | SANDERSVL | Georgia | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 479 | 521 | FAYETTEVL | Arkansas | SOUTHWESTERN BELL | RBOC | More |
| 480 | 521 | PHOENIX | Arizona | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | WIRELESS PROV | More |
| 484 | 521 | PHPHSBZN17 | Pennsylvania | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | CLEC | More |
| 501 | 521 | FAYETTEVILLE | Arkansas | ONVOY, LLC - AR | | More |
| 502 | 521 | BARDSTOWN | Kentucky | ONVOY SPECTRUM, LLC | | More |
| 503 | 521 | BEAVERTON | Oregon | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | IND. TELCO | More |
| 503 | 521 | VANCOUVER | Oregon | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 504 | 521 | NEWORLEANS | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 505 | 521 | LAS CRUCES | New Mexico | AIRUS, INC. - NM | | More |
| 506 | 521 | Richibucto | New Brunswick | Aliant Telecom (Mobility) | | More |
| 507 | 521 | WASECA | Minnesota | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 508 | 521 | BROCKTON | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 509 | 521 | PASCO | Washington | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 510 | 521 | OKLD ALMD | California | PACIFIC BELL | RBOC | More |
| 512 | 521 | BASTROP | Texas | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 513 | 521 | CINCINNATI | Ohio | CINCINNATI BELL | IND. TELCO | More |
| 514 | 521 | MONTREAL | Quebec | Bell Canada | IND. TELCO | More |
| 516 | 521 | NASSAUZN05 | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 517 | 521 | WEBBERVL | Michigan | FRONTIER MIDSTATES, INC. - MI | IND. TELCO | More |
| 518 | 521 | MALONE | New York | TC SYSTEMS, INC. - NY | CAP | More |
| 519 | 521 | LONDON | Ontario | TELUS Mobility | CAP | More |
| 520 | 521 | SHOW LOW | Arizona | HD CARRIER LLC | | More |
| 530 | 521 | CHICO | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 531 | 521 | DAVEY | Nebraska | ONVOY, LLC - NE | | More |
| 540 | 521 | ROANOKE | Virginia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | WIRELESS PROV | More |
| 541 | 521 | EUGENE | Oregon | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | | More |
| 559 | 521 | DEL REY | California | ONVOY, LLC - CA | | More |
| 561 | 521 | BOYNTONBCH | Florida | LEVEL 3 TELECOM OF FLORIDA, LP - FL | CLEC | More |
| 562 | 521 | NORWALK | California | BANDWIDTH.COM CLEC, LLC - CA | | More |
| 563 | 521 | MAQUOKETA | Iowa | CENTURYLINK COMMUNICATIONS, LLC | | More |
| 570 | 521 | JERMYN | Pennsylvania | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 571 | 521 | HERNDON | Maryland | CAVALIER TELEPHONE, LLC - VA | CLEC | More |
| 573 | 521 | NEW MADRID | Missouri | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 574 | 521 | SYRACUSE | Indiana | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 575 | 521 | LAS CRUCES | New Mexico | QWEST CORPORATION | RBOC | More |
| 580 | 521 | TEXHOMA | Oklahoma | PANHANDLE TELECOMMUNICATIONS SYSTEMS, INC. | | More |
| 585 | 521 | ROCHESTER | New York | FRONTIER TELEPHONE OF ROCHESTER, INC. | IND. TELCO | More |
| 587 | 521 | Edmonton | Alberta | Shaw Telecom Inc. | | More |
| 601 | 521 | JACKSON | Mississippi | AIRUS, INC. - MS | | More |
| 602 | 521 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 603 | 521 | NASHUA | New Hampshire | AT&T - LOCAL | CLEC | More |
| 604 | 521 | NEW WESTMINSTER | British Columbia | TELUS | IND. TELCO | More |
| 605 | 521 | SIOUX FLS | South Dakota | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 606 | 521 | CORBIN | Kentucky | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 608 | 521 | READSTOWN | Wisconsin | UNITED STATES CELLULAR - WI | WIRELESS PROV | More |
| 609 | 521 | FORT DIX | New Jersey | PAETEC COMMUNICATIONS, INC. - NJ | CLEC | More |
| 610 | 521 | PHPHSBZN14 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 612 | 521 | TWINCITIES | Minnesota | QWEST CORPORATION | RBOC | More |
| 613 | 521 | OTTAWA | Ontario | Bell Canada | IND. TELCO | More |
| 614 | 521 | COLUMBUS | Ohio | AMERICAN MESSAGING SERVICES, LLC | | More |
| 615 | 521 | NASHVILLE | Tennessee | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 616 | 521 | BLOOMINGDALE | Michigan | BLOOMINGDALE TEL. CO. | IND. TELCO | More |
| 617 | 521 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 618 | 521 | CARBONDALE | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
| 619 | 521 | SNDG SNDG | California | PACIFIC BELL | RBOC | More |
| 620 | 521 | GARDENCITY | Kansas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 623 | 521 | PHOENIX | Arizona | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 626 | 521 | COVINA | California | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | | More |
| 630 | 521 | BENSENVL | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 631 | 521 | BRENTWOOD | New York | LEVEL 3 TELECOM OF NEW YORK, LP - NY | CLEC | More |
| 641 | 521 | NEWTON | Iowa | UNITED STATES CELLULAR - IA | WIRELESS PROV | More |
| 646 | 521 | NYCZ 1 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 647 | 521 | Toronto | Ontario | Bell Mobility | WIRELESS PROV | More |
| 650 | 521 | MOUNTAIN VIEW | California | COMCAST IP PHONE, LLC | | More |
| 657 | 521 | ANAHEIM | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 661 | 521 | PLDL PLDL | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 662 | 521 | AMORY | Mississippi | CENTURYLINK COMMUNICATIONS LLC - MS | CLEC | More |
| 678 | 521 | ATLANTA | Georgia | METROPCS, INC. | | More |
| 681 | 521 | HNTNGTNZN1 | West Virginia | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 682 | 521 | ARLINGTON | Texas | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 701 | 521 | CAVALIER | North Dakota | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 702 | 521 | LAS VEGAS | Nevada | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 703 | 521 | WASZ 8 | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 704 | 521 | CHARLOTTE | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 705 | 521 | SUDBURY | Ontario | Bell Canada | IND. TELCO | More |
| 706 | 521 | ATLANTA | Georgia | LEVEL 3 COMMUNICATIONS, LLC - GA | CLEC | More |
| 707 | 521 | SANTA ROSA | California | PACIFIC BELL | RBOC | More |
| 708 | 521 | LA GRANGE | Illinois | AMERICAN MESSAGING SERVICES, LLC | | More |
| 709 | 521 | MOUNT CARMEL | Newfoundland | Aliant Telecom (NF) | IND. TELCO | More |
| 712 | 521 | GLENWOOD | Iowa | BTC, INC. - IA | | More |
| 713 | 521 | HOUSTON JACKSON | Texas | SOUTHWESTERN BELL | RBOC | More |
| 714 | 521 | BUENA PARK | California | PACIFIC BELL | RBOC | More |
| 715 | 521 | ARGONNE | Wisconsin | METRO SOUTHWEST PCS, LLP | | More |
| 716 | 521 | ROCHESTER | New York | LTE WIRELESS INC D/B/A LTE WIRELESS - NY | | More |
| 717 | 521 | HANOVER (YORK) | Pennsylvania | LEVEL 3 COMMUNICATIONS, LLC - PA | CLEC | More |
| 718 | 521 | NYCZ 6 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 719 | 521 | COLORDOSPG | Colorado | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 720 | 521 | DENVER SULLIVAN | Colorado | AMERICAN MESSAGING SERVICES, LLC | | More |
| 724 | 521 | PARIS | Pennsylvania | CORE COMMUNICATIONS, INC. - PA | | More |
| 727 | 521 | SAINT PETERSBURG | Florida | FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA | IND. TELCO | More |
| 732 | 521 | JAMESBURG | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 734 | 521 | LIVONIA | Michigan | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | CLEC | More |
| 740 | 521 | NELSONVILLE | Ohio | LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - OH | | More |
| 757 | 521 | NFKZ 2 | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 760 | 521 | LA JOLLA | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 763 | 521 | MNPZ 1 | Minnesota | QWEST CORPORATION | RBOC | More |
| 765 | 521 | NEW CASTLE | Indiana | INDIANA BELL TEL CO INC | RBOC | More |
| 770 | 521 | ALPHARETTA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 772 | 521 | STUART | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 773 | 521 | CHCZ 6 | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 774 | 521 | WORCESTER | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 775 | 521 | EMPIRE | Nevada | ONVOY, LLC - NV | | More |
| 778 | 521 | Elkford | British Columbia | Shaw Telecom Inc. | | More |
| 780 | 521 | Smoky Lake | Alberta | TELUS Mobility | WIRELESS PROV | More |
| 781 | 521 | WORCESTER | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 785 | 521 | OTTAWA | Kansas | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 786 | 521 | MIAMI | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 787 | 521 | SANTURCE | Puerto Rico | LIBERTY MOBILE PUERTO RICO INC. | CLEC | More |
| 801 | 521 | SALT LAKE CITY | Utah | QWEST CORPORATION | RBOC | More |
| 802 | 521 | MORRISVL | Vermont | PAETEC COMMUNICATIONS INC. - VT | | More |
| 803 | 521 | EDGEFIELD | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | WIRELESS PROV | More |
| 804 | 521 | RICHMOND | Virginia | US LEC OF VIRGININA, LLC | CLEC | More |
| 805 | 521 | PIRU | California | PACIFIC BELL | RBOC | More |
| 806 | 521 | BORGER | Texas | VEXUS | CLEC | More |
| 808 | 521 | HONOLULU | Hawaii | HAWAIIAN TELCOM, INC. - HI | IND. TELCO | More |
| 810 | 521 | DRYDEN | Michigan | AMERICAN MESSAGING SERVICES, LLC | | More |
| 812 | 521 | SEYMOUR | Indiana | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 813 | 521 | TAMPACEN | Florida | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 814 | 521 | PITTSBURGH | Pennsylvania | METROPCS, INC. | | More |
| 815 | 521 | MINOOKA | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 816 | 521 | KANSAS CITY INDEPEN | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 817 | 521 | ARLINGTON | Texas | METROPCS, INC. | | More |
| 818 | 521 | SHERMAN OAKS | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 819 | 521 | La Tuque | Quebec | TELUS Mobility | PCS | More |
| 828 | 521 | ASHEVILLE | North Carolina | TELNYX LLC | | More |
| 830 | 521 | SAN ANTONIO | Texas | MATRIX TELECOM, LLC. S/I/I TNCI - TX | CLEC | More |
| 831 | 521 | MONTEREY | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 832 | 521 | HOUSTON | Texas | BANDWIDTH.COM CLEC, LLC - TX | | More |
| 843 | 521 | BEAUFORT | South Carolina | UNITED TELEPHONE CO CAROLINAS DBA CENTURYLINK | IND. TELCO | More |
| 845 | 521 | NEW CITY | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 847 | 521 | CHICAGO | Illinois | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | CAP | More |
| 850 | 521 | TALLAHASSEE | Florida | CENTURYLINK OF FLORIDA, INC. (CENTRAL) | IND. TELCO | More |
| 856 | 521 | LAUREL SPRINGS | New Jersey | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | CLEC | More |
| 858 | 521 | RANCHO BERNARDO | California | PACIFIC BELL | RBOC | More |
| 860 | 521 | WEST HARTFORD | Connecticut | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | IND. TELCO | More |
| 863 | 521 | WINTER HAVEN | Florida | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 864 | 521 | ANDERSON | South Carolina | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 865 | 521 | KNOXVILLE | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 870 | 521 | HOPE | Arkansas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 901 | 521 | MEMPHIS | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 902 | 521 | BRIDGEWATER | Nova Scotia | Aliant Telecom (Mobility) | | More |
| 903 | 521 | TYLER | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 904 | 521 | JACKSONVILLE | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 905 | 521 | HAMILTON | Ontario | Bell Canada | IND. TELCO | More |
| 907 | 521 | EMERGENCY RESTORAL | Alaska | CELLCO PARTNERSHIP DBA VERIZON WIRELESS | WIRELESS PROV | More |
| 908 | 521 | PHILLIPSBURG | New Jersey | LEVEL 3 COMMUNICATIONS, LLC - NJ | CLEC | More |
| 909 | 521 | HEMET: HEMET DA | California | BANDWIDTH.COM CLEC, LLC - CA | | More |
| 910 | 521 | PEMBROKE | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 912 | 521 | SANDERSVILLE-TENNIL | Georgia | STRATUS NETWORKS | | More |
| 913 | 521 | KANSASCITY | Kansas | AVID COMMUNICATIONS, LLC - KS | | More |
| 914 | 521 | WESTCHESTER ZONE 8 | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 915 | 521 | EL PASO MAIN | Texas | SOUTHWESTERN BELL | RBOC | More |
| 916 | 521 | ROSEVILLE: MAIN DA | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 917 | 521 | NYCZ 3 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 918 | 521 | TULSA | Oklahoma | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 919 | 521 | RALEIGH | North Carolina | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 920 | 521 | GREEN BAY | Wisconsin | GLOBAL CROSSING TELEMANAGEMENT, INC. - WI | CLEC | More |
| 925 | 521 | CONCORD | California | PACIFIC BELL | RBOC | More |
| 928 | 521 | SHOW LOW | Arizona | SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA | WIRELESS PROV | More |
| 929 | 521 | NWYRCYZN08 | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 936 | 521 | CONROE | Texas | CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY | IND. TELCO | More |
| 937 | 521 | SPRINGFLD | Ohio | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | | More |
| 940 | 521 | GRAHAM | Texas | SOUTHWESTERN BELL | RBOC | More |
| 947 | 521 | ROYAL OAK | Michigan | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | | More |
| 949 | 521 | SADDLEBACK VALLEY | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 951 | 521 | RIVERSIDE | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 952 | 521 | NORWOOD | Minnesota | ONVOY, LLC - MN | | More |
| 954 | 521 | FORT LAUDERDALE | Florida | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 956 | 521 | BROWNSVL | Texas | STPCS JOINT VENTURE, LLC | PCS | More |
| 970 | 521 | STERLING | Colorado | QWEST CORPORATION | RBOC | More |
| 972 | 521 | DALLAS 1 | Texas | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | CAP | More |
| 973 | 521 | NEWARK | New Jersey | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | | More |
| 978 | 521 | HAVERHILL | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 980 | 521 | CONCORD | North Carolina | SUNCOM DBA T-MOBILE USA | PCS | More |
| 989 | 521 | ROGERSCITY | Michigan | TELNET WORLDWIDE, INC. | CLEC | More |
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