Area
Code | Prefix | City/Switch Name
(Click for city search) | State/Prov.
Area Map | Telephone Company
Web link | Telco
Type | More
Info |
|---|
| 201 | 503 | ENGLEWOOD | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 202 | 503 | WSHNGTNZN1 | District of Columbia | ONVOY, LLC - DC | | More |
| 203 | 503 | NEW HAVEN | Connecticut | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | IND. TELCO | More |
| 204 | 503 | Niverville | Manitoba | LES.NET (1996) Inc. | | More |
| 205 | 503 | BIRMINGHAM | Alabama | METROPCS, INC. | | More |
| 206 | 503 | SEATTLE | Washington | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 207 | 503 | BANGOR | Maine | ONVOY, LLC - ME | | More |
| 208 | 503 | LEWISTON | Washington | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 209 | 503 | LODI | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 210 | 503 | SANANTONIO | Texas | AT&T CORP. | | More |
| 212 | 503 | NWYRCYZN01 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 213 | 503 | LSAN DA 01 | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 214 | 503 | DALLAS | Texas | SOUTHWESTERN BELL | RBOC | More |
| 215 | 503 | PHLDLPHZN1 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 216 | 503 | INDEPNDNCE | Ohio | LEVEL 3 COMMUNICATIONS, LLC - OH | CLEC | More |
| 217 | 503 | SPRINGFLD | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 218 | 503 | BARNUM | Minnesota | BANDWIDTH.COM CLEC, LLC - MN | | More |
| 224 | 503 | NORTHBROOK | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 225 | 503 | DENHAM SPG | Louisiana | BANDWIDTH.COM CLEC, LLC - LA | | More |
| 229 | 503 | LAKELAND | Georgia | WINDSTREAM GEORGIA COMMUNICATIONS CORP. | IND. TELCO | More |
| 231 | 503 | TRAVERSECY | Michigan | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 239 | 503 | IMMOKALEE | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 240 | 503 | LXTNPKGRML | Maryland | PEERLESS NETWORK OF MARYLAND, LLC | | More |
| 248 | 503 | SOUTHFIELD | Michigan | MICHIGAN BELL TEL CO | RBOC | More |
| 250 | 503 | VERNON | British Columbia | TELUS | IND. TELCO | More |
| 252 | 503 | SWNSBRWCAR | North Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | WIRELESS PROV | More |
| 253 | 503 | TACOMA | Washington | TELEPORT COMMUNICATIONS AMERICA, LLC - WA | CAP | More |
| 254 | 503 | CAMERON | Texas | ONVOY, LLC - TX | | More |
| 256 | 503 | HUNTSVILLE | Alabama | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | WIRELESS PROV | More |
| 260 | 503 | COLUMBIACY | Indiana | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 267 | 503 | YARDLEY | Pennsylvania | CAVALIER TELEPHONE MID-ATLANTIC, LLC - PA | | More |
| 269 | 503 | STURGIS | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
| 270 | 503 | MADISONVL | Kentucky | TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY | | More |
| 281 | 503 | PORTER HTS | Texas | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | CLEC | More |
| 301 | 503 | WSHNGTNZN2 | Maryland | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 302 | 503 | MILFORD | Delaware | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 303 | 503 | DENVER | Colorado | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | WIRELESS PROV | More |
| 304 | 503 | FAIRVIEW | West Virginia | GATEWAY TELECOM LLC DBA STRATUSWAVE COMM LLC WV | CLEC | More |
| 305 | 503 | MIAMI | Florida | PAETEC COMMUNICATIONS, INC. - FL | CLEC | More |
| 309 | 503 | TOWANDA | Illinois | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | | More |
| 310 | 503 | CMTN GRDN | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 312 | 503 | CHICGOZN01 | Illinois | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | CAP | More |
| 313 | 503 | DETROITZN5 | Michigan | AMERICAN MESSAGING SERVICES, LLC | | More |
| 314 | 503 | LADUE | Missouri | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 315 | 503 | MINOA | New York | LEVEL 3 TELECOM OF NEW YORK, LP - NY | CLEC | More |
| 316 | 503 | ROSE HILL | Kansas | SPRINT COMMUNICATIONS COMPANY, L.P. - KS | CLEC | More |
| 317 | 503 | INDIANAPLS | Indiana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN | WIRELESS PROV | More |
| 318 | 503 | MONROE | Louisiana | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | PCS | More |
| 319 | 503 | CLINTON | Iowa | SPRINT SPECTRUM L.P.- IA | PCS | More |
| 321 | 503 | COCOA | Florida | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 323 | 503 | LSAN DA 02 | California | IP HORIZON LLC | | More |
| 330 | 503 | YOUNGSTOWN | Ohio | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 334 | 503 | DALEVILLE | Alabama | CENTURYTEL TEL AL LLC (SOUTHERN) DBA CENTURYLINK | | More |
| 336 | 503 | ROXBORO | North Carolina | CENTRAL TEL. CO. OF NC DBA CENTURYLINK | IND. TELCO | More |
| 337 | 503 | SULPHUR | Louisiana | DELTACOM, INC. - LA | CLEC | More |
| 346 | 503 | HOUSTON | Texas | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 347 | 503 | NWYRCYZN03 | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 350 | 503 | MERCED | California | ONVOY SPECTRUM, LLC | | More |
| 352 | 503 | HOMOSSSSPG | Florida | LEVEL 3 COMMUNICATIONS, LLC - FL | CLEC | More |
| 360 | 503 | MT VERNON | Washington | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | | More |
| 361 | 503 | VICTORIA | Texas | AWESOME PAGING, INC. | WIRELESS PROV | More |
| 385 | 503 | BOUNTIFUL | Utah | ONVOY, LLC - UT | | More |
| 386 | 503 | FLAGLERBCH | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 402 | 503 | WESTERN | Nebraska | ONVOY, LLC - NE | | More |
| 403 | 503 | CALGARY | Alberta | TELUS | IND. TELCO | More |
| 404 | 503 | ATLANTA | Georgia | POWERTEL ATLANTA LICENSES, INC. | WIRELESS PROV | More |
| 405 | 503 | OKLA CITY | Oklahoma | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 406 | 503 | BILLINGS | Montana | COMCAST IP PHONE, LLC | | More |
| 407 | 503 | ORLANDO | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 408 | 503 | SNJS NORTH | California | PACIFIC BELL | RBOC | More |
| 410 | 503 | ELKRIDGE | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 412 | 503 | PTTSBGZON7 | Pennsylvania | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | CLEC | More |
| 413 | 503 | WESTFIELD | Massachusetts | COMMIO, LLC | | More |
| 414 | 503 | MILWAUKEE ZONE 1 | Wisconsin | ADBEEP, LLC | WIRELESS PROV | More |
| 415 | 503 | SNFC CNTRL | California | PACIFIC BELL | RBOC | More |
| 416 | 503 | TORONTO | Ontario | Bell Canada | IND. TELCO | More |
| 417 | 503 | HUMANSVL | Missouri | BANDWIDTH.COM CLEC, LLC - MO | | More |
| 418 | 503 | St-Honore (Chicouti | Quebec | Videotron General Partnership | CLEC | More |
| 419 | 503 | SANDUSKY | Ohio | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 423 | 503 | CHATTNOOGA | Tennessee | POWERTEL ATLANTA LICENSES, INC. | WIRELESS PROV | More |
| 424 | 503 | INGLEWOOD | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 425 | 503 | BELLEVUE | Washington | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 435 | 503 | HEBER CITY | Utah | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 440 | 503 | BEREA | Ohio | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 443 | 503 | DUNDALK | Maryland | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 450 | 503 | Contrecoeur | Quebec | TELUS Mobility | CAP | More |
| 469 | 503 | GRANDPRARI | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 470 | 503 | ATLANTA NE | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | WIRELESS PROV | More |
| 478 | 503 | MARSHALLVL | Georgia | SOUTHERN COMMUNICATIONS SERVICES, INC. | WIRELESS PROV | More |
| 479 | 503 | MAYSVILLE | Arkansas | ONVOY, LLC - AR | | More |
| 480 | 503 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 484 | 503 | EASTON | Pennsylvania | XO COMMUNICATIONS SERVICES, INC. - PA | CAP | More |
| 501 | 503 | LITTLEROCK | Arkansas | BANDWIDTH.COM CLEC, LLC - AR | | More |
| 502 | 503 | GEORGETOWN | Kentucky | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | WIRELESS PROV | More |
| 504 | 503 | SLIDELL | Louisiana | HUNT TELECOMMUNICATIONS, LLC - LA | | More |
| 505 | 503 | ALBUQURQUE | New Mexico | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM | WIRELESS PROV | More |
| 507 | 503 | ADAMS | Minnesota | TWILIO INTERNATIONAL, INC. | | More |
| 508 | 503 | PLYMOUTH | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC. - MA | CLEC | More |
| 509 | 503 | SPOKANE | Washington | VOIP INNOVATIONS, LLC | | More |
| 510 | 503 | OKLD MN-PD | California | UTILITY TELECOM GROUP, LLC - CA | | More |
| 512 | 503 | AUSTIN | Texas | ONVOY, LLC - TX | | More |
| 513 | 503 | CINCINNATI | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 514 | 503 | Montreal | Quebec | Videotron General Partnership | | More |
| 516 | 503 | NASSAUZN05 | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 517 | 503 | MOUNT PLEASANT | Michigan | CENTENNIAL MICHIANA LICENSE COMPANY LLC | WIRELESS PROV | More |
| 518 | 503 | TICONDROGA | New York | TC SYSTEMS, INC. - NY | CAP | More |
| 519 | 503 | KITCHENER WATERLOO | Ontario | Bell Mobility | WIRELESS PROV | More |
| 520 | 503 | YUMA | Arizona | ONVOY, LLC - AZ | | More |
| 530 | 503 | PLVL SOUTH | California | IP HORIZON LLC | | More |
| 540 | 503 | GORE | Virginia | CORETEL VIRGINIA, LLC - VA | | More |
| 559 | 503 | KINGSBURG | California | AMERICAN MESSAGING SERVICES, LLC | | More |
| 561 | 503 | BOYNTONBCH | Florida | LEVEL 3 COMMUNICATIONS, LLC - FL | CLEC | More |
| 562 | 503 | NORWALK | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 563 | 503 | CLINTON | Iowa | METROPCS, INC. | | More |
| 570 | 503 | HAMLIN | Pennsylvania | CHOICE ONE COMMUNICATIONS, INC. - PA | CLEC | More |
| 571 | 503 | OCCOQUAN | Virginia | ONVOY, LLC - VA | | More |
| 573 | 503 | MIDDLETOWN | Missouri | LEVEL 3 COMMUNICATIONS, LLC - MO | CLEC | More |
| 580 | 503 | FLETCHER | Oklahoma | DISH WIRELESS, LLC | | More |
| 585 | 503 | ROCHESTER | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 601 | 503 | JACKSON | Mississippi | AT&T - LOCAL | CLEC | More |
| 602 | 503 | PHOENIX | Arizona | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 603 | 503 | LANCASTER | New Hampshire | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH | CLEC | More |
| 604 | 503 | Newton | British Columbia | Shaw Telecom Inc. | | More |
| 605 | 503 | RAPID CITY | South Dakota | DISH WIRELESS, LLC | | More |
| 606 | 503 | HARLAN | Kentucky | ONVOY, LLC - KY | | More |
| 608 | 503 | BARABOO | Wisconsin | MCC TELEPHONY OF THE MIDWEST, LLC - WI | | More |
| 609 | 503 | TRENTON | New Jersey | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | CLEC | More |
| 610 | 503 | PHPHSBZN26 | Pennsylvania | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | CLEC | More |
| 612 | 503 | TWINCITIES | Minnesota | RCLEC, INC. | | More |
| 613 | 503 | Picton | Ontario | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 614 | 503 | HILLIARD | Ohio | LEVEL 3 COMMUNICATIONS, LLC - OH | CLEC | More |
| 615 | 503 | FRANKLIN | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 617 | 503 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 618 | 503 | CARBONDALE | Illinois | LEVEL 3 COMMUNICATIONS, LLC - IL | CLEC | More |
| 619 | 503 | CAMPO | California | IP HORIZON LLC | | More |
| 620 | 503 | MCPHERSON | Kansas | ONVOY, LLC - KS | | More |
| 626 | 503 | ALHAMBRA | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 630 | 503 | ELGIN | Illinois | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | CAP | More |
| 631 | 503 | HUNTINGTON | New York | TC SYSTEMS, INC. - NY | CAP | More |
| 641 | 503 | MOUNT AYR | Iowa | ONVOY, LLC - IA | | More |
| 646 | 503 | NWYRCYZN01 | New York | ONVOY, LLC- NY | | More |
| 647 | 503 | Toronto | Ontario | Iristel Inc. | | More |
| 650 | 503 | SAN JOSE | California | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | | More |
| 651 | 503 | MINNEAPOLIS | Minnesota | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 657 | 503 | ANAHEIM | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 661 | 503 | PLDL PLDL | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 662 | 503 | SARDIS | Mississippi | TELEPAK NETWORKS, INC. - MS | | More |
| 678 | 503 | NORCROSS | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 681 | 503 | GLENDANIEL | West Virginia | COMMIO, LLC | | More |
| 682 | 503 | DALLAS 1 | Texas | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | CAP | More |
| 701 | 503 | NOMCINTOSH | North Dakota | NUSO, LLC | | More |
| 702 | 503 | LAS VEGAS | Nevada | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 703 | 503 | BRADDOCK | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 704 | 503 | CHARLOTTE | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 705 | 503 | Barrie | Ontario | Rogers Communications Partnership (Cable) | | More |
| 706 | 503 | CALHOUN | Georgia | POWERTEL ATLANTA LICENSES, INC. | WIRELESS PROV | More |
| 707 | 503 | WILLITS | California | ONVOY, LLC - CA | | More |
| 708 | 503 | CHICAGO HEIGHTS | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 713 | 503 | HOUSTON | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 714 | 503 | ANAHEIM | California | PACIFIC BELL | RBOC | More |
| 715 | 503 | LOYAL | Wisconsin | LEVEL 3 COMMUNICATIONS, LLC - WI | | More |
| 716 | 503 | PENDLETON | New York | WAVENATION, LLC | | More |
| 717 | 503 | HARRISBURG CITY ZON | Pennsylvania | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 718 | 503 | NEW YORK | New York | TC SYSTEMS, INC. - NY | CAP | More |
| 719 | 503 | COLORDOSPG | Colorado | QWEST CORPORATION | RBOC | More |
| 720 | 503 | DENVER | Colorado | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 724 | 503 | WASHINGTON | Pennsylvania | US LEC OF PENNSYLVANIA, INC. | CLEC | More |
| 727 | 503 | CLEARWATER | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 731 | 503 | NEWBERN | Tennessee | LEVEL 3 COMMUNICATIONS, LLC - TN | CLEC | More |
| 732 | 503 | SOUTH RIVER | New Jersey | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | WIRELESS PROV | More |
| 734 | 503 | SALINE | Michigan | TELNET WORLDWIDE, INC. | CLEC | More |
| 740 | 503 | LANCASTER | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 757 | 503 | NEWPORT NEWS ZONE 3 | Virginia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | WIRELESS PROV | More |
| 760 | 503 | OCEANSIDE: OCEANSID | California | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | | More |
| 763 | 503 | MNPZ 9 | Minnesota | QWEST CORPORATION | RBOC | More |
| 765 | 503 | LAFAYETTE WEST | Indiana | FRONTIER NORTH, INC.. - IN | IND. TELCO | More |
| 770 | 503 | GAINESVILLE | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 773 | 503 | CHICAGO ZONE 1 | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 774 | 503 | ROCHESTER | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 775 | 503 | RENO | Nevada | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | | More |
| 778 | 503 | New Westminster | British Columbia | TELUS | IND. TELCO | More |
| 780 | 503 | Edmonton | Alberta | TELUS | IND. TELCO | More |
| 781 | 503 | BOSTON | Massachusetts | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 785 | 503 | LECOMPTON | Kansas | COMCAST IP PHONE, LLC | | More |
| 786 | 503 | MIAMI | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 786 | 503 | MIAMI | Florida | RNK, INC. | CLEC | More |
| 787 | 503 | GUAYNABO | Puerto Rico | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 801 | 503 | SALT LAKE | Utah | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | CLEC | More |
| 802 | 503 | BURLINGTON | Vermont | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 803 | 503 | COLUMBIA | South Carolina | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 804 | 503 | ASHLAND | Virginia | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | WIRELESS PROV | More |
| 805 | 503 | SAN LUIS OBISPO | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 806 | 503 | TURKEY | Texas | NUSO, LLC | | More |
| 810 | 503 | DETROIT | Michigan | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | | More |
| 812 | 503 | CHARLESTOWN | Indiana | AT&T CORP. | | More |
| 813 | 503 | TAMPA | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 814 | 503 | DUBOIS | Pennsylvania | CHOICE ONE COMMUNICATIONS, INC. - PA | CLEC | More |
| 815 | 503 | GRIDLEY | Illinois | METROPCS, INC. | | More |
| 816 | 503 | BLUE SPRINGS | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 817 | 503 | FORT WORTH N. RICHL | Texas | SOUTHWESTERN BELL | RBOC | More |
| 818 | 503 | NORTH HOLLYWOOD | California | PACIFIC BELL | RBOC | More |
| 819 | 503 | HULL | Quebec | Videotron General Partnership | CLEC | More |
| 828 | 503 | HICKORY | North Carolina | SKYE TELECOM LLC DBA SKYETEL | | More |
| 830 | 503 | EAGLE PASS | Texas | AWESOME PAGING, INC. | WIRELESS PROV | More |
| 832 | 503 | HOUSTON | Texas | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 843 | 503 | WMYRTLEBCH | South Carolina | SUNCOM DBA T-MOBILE USA | PCS | More |
| 845 | 503 | SPRING VALLEY | New York | BROADVIEW NETWORKS, INC. - NY | CLEC | More |
| 847 | 503 | ARLINGTON HEIGHTS | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 850 | 503 | SEAGRV BCH | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 856 | 503 | MERCHANTVILLE | New Jersey | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | WIRELESS PROV | More |
| 858 | 503 | SAN DIEGO | California | PACIFIC BELL | RBOC | More |
| 860 | 503 | HARTFORD | Connecticut | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 864 | 503 | SPARTANBURG | South Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 865 | 503 | WESTSWEETW | Tennessee | ONVOY, LLC - TN | | More |
| 870 | 503 | NEWPORT | Arkansas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | WIRELESS PROV | More |
| 901 | 503 | MEMPHIS | Tennessee | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 902 | 503 | Halifax | Nova Scotia | Aliant Telecom (NS) | IND. TELCO | More |
| 903 | 503 | MARSHALL | Texas | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 904 | 503 | JACKSONVL | Florida | COMCAST IP PHONE, LLC | | More |
| 905 | 503 | Aurora | Ontario | Rogers Communications Partnership (Cable) | | More |
| 907 | 503 | WASILLA | Alaska | GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION | CLEC | More |
| 908 | 503 | CLINTON | New Jersey | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 909 | 503 | SANTA ANA IRVINE | California | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 910 | 503 | LAURELHILL | North Carolina | TIME WARNER CBL INFO SVC (NC) DBA TIME WARNER CBL | | More |
| 912 | 503 | LAKELAND | Georgia | LEVEL 3 COMMUNICATIONS, LLC - GA | CLEC | More |
| 914 | 503 | POUGHKEEPSIE | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 915 | 503 | EL PASO | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 916 | 503 | SACRAMENTO | California | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | CLEC | More |
| 917 | 503 | NEW YORK CITY ZONE | New York | YMAX COMMUNICATIONS CORP. - NY | | More |
| 918 | 503 | COWETA | Oklahoma | COMCAST IP PHONE, LLC | | More |
| 919 | 503 | RALEIGH | North Carolina | SUNCOM DBA T-MOBILE USA | PCS | More |
| 920 | 503 | MT CALVARY | Wisconsin | TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI | | More |
| 925 | 503 | ANTIOCH | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 928 | 503 | YUMA | Arizona | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | WIRELESS PROV | More |
| 929 | 503 | NWYRCYZN07 | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 931 | 503 | CLARKSVILLE | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 937 | 503 | SPRINGFIELD | Ohio | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 940 | 503 | BURKBURNTT | Texas | LEVEL 3 COMMUNICATIONS, LLC - TX | CLEC | More |
| 941 | 503 | IMMOKALEE | Florida | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 949 | 503 | CAPITRNVLY | California | COMCAST IP PHONE, LLC | | More |
| 951 | 503 | PERRIS | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 954 | 503 | FORT LAUDERDALE | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 956 | 503 | ZAPATA | Texas | METROPCS, INC. | | More |
| 970 | 503 | CRAIG | Colorado | ALLO COMMUNICATIONS, LLC - NE | | More |
| 972 | 503 | DALLAS ADDISON | Texas | SOUTHWESTERN BELL | RBOC | More |
| 973 | 503 | WHIPPANY | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 978 | 503 | BOSTON | Massachusetts | TC SYSTEMS, INC. | CAP | More |
| 979 | 503 | CLUTE LAKE JACKSON | Texas | AWESOME PAGING, INC. | WIRELESS PROV | More |
| 985 | 503 | SLIDELL | Louisiana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA | WIRELESS PROV | More |
| 989 | 503 | MOUNT PLEASANT | Michigan | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
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