Area
Code | Prefix | City/Switch Name
(Click for city search) | State/Prov.
Area Map | Telephone Company
Web link | Telco
Type | More
Info |
|---|
| 201 | 331 | CRAGMERE | New Jersey | XO NEW JERSEY, INC. | CLEC | More |
| 202 | 331 | WSHNGTNZN1 | District of Columbia | VERIZON WASHINGTON, DC INC. | RBOC | More |
| 203 | 331 | BRIDGEPORT | Connecticut | SOUTHERN NEW ENGLAND TELEPHONE CO. | IND. TELCO | More |
| 204 | 331 | WINKLER | Manitoba | MTS Inc. | IND. TELCO | More |
| 205 | 331 | TUSCALOOSA | Alabama | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 206 | 331 | SEATTLE | Washington | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 207 | 331 | PORTLAND | Maine | SPRINT SPECTRUM L.P. | PCS | More |
| 208 | 331 | BOISE | Idaho | QWEST CORPORATION | RBOC | More |
| 209 | 331 | LODI | California | PACIFIC BELL | RBOC | More |
| 210 | 331 | SANANTONIO | Texas | AT&T LOCAL | CLEC | More |
| 212 | 331 | NWYRCYZN01 | New York | TELEPORT COMMUNICATIONS GROUP - NY | CAP | More |
| 213 | 331 | LOS ANGELES | California | SPRINT SPECTRUM L.P. | PCS | More |
| 214 | 331 | DALLAS | Texas | SOUTHWESTERN BELL | RBOC | More |
| 215 | 331 | PHLDLPHZN4 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 216 | 331 | CLEVELAND | Ohio | TIME WARNER CABLE INFORMATION SVCS (OHIO) - OH | | More |
| 217 | 331 | SPRINGFLD | Illinois | AT&T LOCAL | CLEC | More |
| 218 | 331 | MOORHEAD | North Dakota | MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- MN | CLEC | More |
| 219 | 331 | PORTAGE | Indiana | SPRINT SPECTRUM L.P. | PCS | More |
| 225 | 331 | CONVENT | Louisiana | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 228 | 331 | BILOXI | Mississippi | YMAX COMMUNICATIONS CORP. - MS | | More |
| 229 | 331 | AMERICUS | Georgia | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 231 | 331 | ALDEN | Michigan | FRONTIER NORTH, INC. - MI | IND. TELCO | More |
| 234 | 331 | MARLBORO | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 239 | 331 | NAPLES | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 240 | 331 | WSHNGTNZN3 | Virginia | PEERLESS NETWORK OF MARYLAND, LLC | | More |
| 248 | 331 | SOUTHFIELD | Michigan | AMERITECH MICHIGAN | RBOC | More |
| 250 | 331 | Courtenay | British Columbia | TELUS | IND. TELCO | More |
| 251 | 331 | MOBILE | Alabama | SOUTHERN COMMUNICATIONS SERVICES | WIRELESS PROV | More |
| 252 | 331 | ELIZABTHCY | North Carolina | CAROLINA TEL AND TEL CO., LLC DBA CENTURYLINK | IND. TELCO | More |
| 254 | 331 | BUCKHOLTS | Texas | VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW | | More |
| 256 | 331 | RUSSELLVL | Alabama | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 262 | 331 | PARKSIDE | Wisconsin | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | WIRELESS PROV | More |
| 267 | 331 | PHLDLPHZN3 | Pennsylvania | BROADWING COMMUNICATIONS, LLC - PA | CLEC | More |
| 269 | 331 | HASTINGS | Michigan | SPRINT SPECTRUM L.P. | PCS | More |
| 270 | 331 | PADUCAH | Kentucky | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | WIRELESS PROV | More |
| 281 | 331 | ALVIN | Texas | SOUTHWESTERN BELL | RBOC | More |
| 289 | 331 | DUNNVILLE | Ontario | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 301 | 331 | HAGERSTOWN | Maryland | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 302 | 331 | CAMDEN | Delaware | SPRINT SPECTRUM L.P. | PCS | More |
| 303 | 331 | DENVER | Colorado | QWEST CORPORATION | RBOC | More |
| 304 | 331 | WHELNGZON1 | West Virginia | A.V. LAUTTAMUS COMMUNICATIONS, INC. | | More |
| 305 | 331 | NORTH DADE | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 306 | 331 | REGINA | Saskatchewan | SaskTel Mobility | | More |
| 307 | 331 | WHEATLAND | Wyoming | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY | WIRELESS PROV | More |
| 308 | 331 | MINDEN | Nebraska | SPRINT SPECTRUM L.P. | PCS | More |
| 309 | 331 | MACOMB | Illinois | UNITED STATES CELLULAR CORP. - ILLINOIS | WIRELESS PROV | More |
| 310 | 331 | HAWTHORNE | California | PACIFIC BELL | RBOC | More |
| 312 | 331 | WHEELING | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 313 | 331 | DETROITZN2 | Michigan | AMERITECH MICHIGAN | RBOC | More |
| 314 | 331 | ST LOUIS | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 315 | 331 | NEWARK | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 316 | 331 | TOWANDA | Kansas | SPRINT SPECTRUM L.P. | PCS | More |
| 317 | 331 | INDIANAPLS | Indiana | SPRINT SPECTRUM L.P. | PCS | More |
| 318 | 331 | MONROE | Louisiana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA | WIRELESS PROV | More |
| 319 | 331 | IOWA CITY | Iowa | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | WIRELESS PROV | More |
| 320 | 331 | BROWNTON | Minnesota | MCC TELEPHONY OF MINNESOTA, LLC - MN | | More |
| 321 | 331 | ORLANDO | Florida | SPRINT SPECTRUM L.P. | PCS | More |
| 323 | 331 | LSAN DA 02 | California | MCI WORLDCOM COMMUNICATIONS, INC., CA | CLEC | More |
| 330 | 331 | WADSWORTH | Ohio | MCI WORLDCOM COMMUNICATIONS, INC. - OH | CLEC | More |
| 334 | 331 | MOBILE | Alabama | WINDSTREAM ALABAMA, INC. | IND. TELCO | More |
| 336 | 331 | WINSTN SAL | North Carolina | TELCOVE OPERATIONS, INC. - NC | CLEC | More |
| 337 | 331 | OPELOUSAS | Louisiana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA | WIRELESS PROV | More |
| 346 | 331 | SPRING | Texas | COMCAST PHONE OF TEXAS, LLC - TX | CLEC | More |
| 347 | 331 | NWYRCYZN05 | New York | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 352 | 331 | GAINESVL | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 360 | 331 | SO WHIDBEY | Washington | WHIDBEY TELEPHONE CO. | IND. TELCO | More |
| 361 | 331 | C CHRISTI | Texas | SPRINT SPECTRUM L.P. | PCS | More |
| 385 | 331 | SALT LAKE | Utah | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - UT | CLEC | More |
| 401 | 331 | PROVIDENCE | Rhode Island | VERIZON NEW ENGLAND INC. | RBOC | More |
| 402 | 331 | OMAHA | Nebraska | QWEST CORPORATION | RBOC | More |
| 403 | 331 | CALLING LAKE | Alberta | TELUS | IND. TELCO | More |
| 404 | 331 | ATLANTA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 405 | 331 | PAULS VLY | Oklahoma | FULLTEL, INC. | CLEC | More |
| 406 | 331 | ROUNDUP | Montana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | WIRELESS PROV | More |
| 407 | 331 | WINTERPARK | Florida | EMBARQ FLORIDA, INC. DBA CENTURYLINK | IND. TELCO | More |
| 408 | 331 | SUNNYVALE | California | XO CALIFORNIA, INC. | CLEC | More |
| 409 | 331 | WOODVILLE | Texas | SOUTHWESTERN BELL | RBOC | More |
| 410 | 331 | ELKRIDGE | Maryland | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 412 | 331 | PTTSBGZON7 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 413 | 331 | CHICOPEE | Massachusetts | CHARTER FIBERLINK MA-CCO, LLC - MA | | More |
| 414 | 331 | MILWAUKZN1 | Wisconsin | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | WIRELESS PROV | More |
| 415 | 331 | SAUSALITO | California | PACIFIC BELL | RBOC | More |
| 416 | 331 | TORONTO | Ontario | Bell Canada | IND. TELCO | More |
| 417 | 331 | BRANSON | Missouri | UNITED STATES CELLULAR CORP. - MISSOURI | WIRELESS PROV | More |
| 418 | 331 | THETFORD MINES | Quebec | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 419 | 331 | LIMA | Ohio | UNITED TEL. CO. OF OHIO - CENTURYLINK | IND. TELCO | More |
| 423 | 331 | CLEVELAND | Tennessee | POWERTEL ATLANTA LICENSES, INC. | WIRELESS PROV | More |
| 424 | 331 | INGLEWOOD | California | BANDWIDTH.COM CLEC, LLC - CA | | More |
| 432 | 331 | ODESSA | Texas | SOUTHWESTERN BELL | RBOC | More |
| 440 | 331 | CLEVELAND | Ohio | AMERITECH OHIO | RBOC | More |
| 443 | 331 | TANEYTOWN | Maryland | CTC COMMUNICATIONS CORP. - MD | CLEC | More |
| 450 | 331 | Lachute | Quebec | Videotron General Partnership | | More |
| 469 | 331 | PLANO | Texas | CBEYOND COMMUNICATIONS OF TEXAS, LP-TX | | More |
| 470 | 331 | WINDER | Georgia | POWERTEL ATLANTA LICENSES, INC. | WIRELESS PROV | More |
| 475 | 331 | NEW HAVEN | Connecticut | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | WIRELESS PROV | More |
| 478 | 331 | SWAINSBORO | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | WIRELESS PROV | More |
| 479 | 331 | DOVER | Arkansas | CENTURYTEL NW AR-RUSSELVL DBA CENTURYLINK-RUSSELLV | | More |
| 480 | 331 | PHOENIX | Arizona | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 484 | 331 | READING | Pennsylvania | BROADWING COMMUNICATIONS, LLC - PA | CLEC | More |
| 501 | 331 | DOVER | Arkansas | WINDSTREAM ARKANSAS, INC. | IND. TELCO | More |
| 502 | 331 | BARDSTOWN | Kentucky | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 503 | 331 | PORTLAND | Oregon | QWEST CORPORATION | RBOC | More |
| 504 | 331 | LULING | Louisiana | SPRINT SPECTRUM L.P. | PCS | More |
| 505 | 331 | ALBUQURQUE | New Mexico | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM | WIRELESS PROV | More |
| 506 | 331 | Petitcodiac | New Brunswick | Rogers Communications Partnership (Cable) | | More |
| 507 | 331 | FARIBAULT | Minnesota | CRYSTAL COMMUNICATIONS, INC - MN | CLEC | More |
| 508 | 331 | FITCHBURG | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 509 | 331 | OTHELLO | Washington | QWEST CORPORATION | RBOC | More |
| 510 | 331 | HAYWARD | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 512 | 331 | AUSTIN | Texas | SOUTHWESTERN BELL | RBOC | More |
| 513 | 331 | LEBANON | Ohio | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 514 | 331 | MONTREAL | Quebec | Bell Canada | IND. TELCO | More |
| 515 | 331 | DES MOINES | Iowa | QWEST CORPORATION | RBOC | More |
| 516 | 331 | PORT JEFFERSON | New York | CABLEVISION LIGHTPATH, INC. - NY | CLEC | More |
| 517 | 331 | LANSING | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
| 518 | 331 | ALBANY | New York | SPRINT SPECTRUM L.P. | PCS | More |
| 519 | 331 | SARNIA | Ontario | Bell Mobility | WIRELESS PROV | More |
| 520 | 331 | TUCSON | Arizona | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 530 | 331 | YREKA | California | O1 COMMUNICATIONS, INC. - CA | CLEC | More |
| 540 | 331 | EDINBURG | Virginia | SHENANDOAH TELEPHONE CO. | IND. TELCO | More |
| 541 | 331 | KLAMATHFLS | Oregon | SPRINT SPECTRUM L.P. | PCS | More |
| 559 | 331 | TULARE | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 561 | 331 | WPALMBEACH | Florida | BANDWIDTH.COM CLEC, LLC - FL | | More |
| 562 | 331 | ALAMITOS | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 563 | 331 | TIPTON | Iowa | UNITED STATES CELLULAR CORP. - IOWA | WIRELESS PROV | More |
| 567 | 331 | PERRYSBURG | Ohio | ONVOY, INC. - OH | | More |
| 570 | 331 | KINGSTON | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 571 | 331 | WSNGTNZN17 | Virginia | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | WIRELESS PROV | More |
| 573 | 331 | CAPEGIRARD | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 574 | 331 | BREMEN | Indiana | LEVEL 3 COMMUNICATIONS, LLC - IN | CLEC | More |
| 580 | 331 | CLINTON | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 581 | 331 | East Broughton | Quebec | Telecommunications Xittel Inc | | More |
| 585 | 331 | ALBION | New York | TELEPORT COMMUNICATIONS GROUP - NY | CAP | More |
| 586 | 331 | ROMEO | Michigan | TCG DETROIT - MI | | More |
| 587 | 331 | Calgary | Alberta | Iristel Inc. | | More |
| 601 | 331 | JACKSON | Mississippi | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS | WIRELESS PROV | More |
| 602 | 331 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 603 | 331 | COLEBROOK | New Hampshire | LEVEL 3 COMMUNICATIONS - NH | CLEC | More |
| 604 | 331 | VANCOUVER | British Columbia | TELUS | IND. TELCO | More |
| 605 | 331 | SIOUX FLS | South Dakota | QWEST CORPORATION | RBOC | More |
| 606 | 331 | ASHLAND | Kentucky | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | WIRELESS PROV | More |
| 607 | 331 | ELMIRA | New York | SPRINT SPECTRUM L.P. | PCS | More |
| 608 | 331 | PLATTEVL | Wisconsin | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | WIRELESS PROV | More |
| 609 | 331 | TRENTON | New Jersey | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 610 | 331 | PHPHSBZN30 | Pennsylvania | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | WIRELESS PROV | More |
| 612 | 331 | TWINCITIES | Minnesota | QWEST CORPORATION | RBOC | More |
| 613 | 331 | BANCROFT | Ontario | Bell Mobility | WIRELESS PROV | More |
| 614 | 331 | COLUMBUS | Ohio | AMERITECH OHIO | RBOC | More |
| 615 | 331 | NASHVILLE | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 616 | 331 | GRAND RPDS | Michigan | US XCHANGE OF MICHIGAN LLC DBA CHOICE ONE COMM MI | CLEC | More |
| 617 | 331 | BOSTON | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 618 | 331 | CARBONDALE | Illinois | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 619 | 331 | SNDG SNDG | California | PAC - WEST TELECOMM, INC. | CLEC | More |
| 620 | 331 | INDEPNDNCE | Kansas | SOUTHWESTERN BELL | RBOC | More |
| 626 | 331 | COVINA | California | VERIZON CALIFORNIA INC.-CA (GTE) | IND. TELCO | More |
| 631 | 331 | PORT JEFFERSON | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 646 | 331 | NEW YORK CITY ZONE | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 650 | 331 | SAN FRANCISCO | California | BROADWING COMMUNICATIONS, LLC - CA | CLEC | More |
| 651 | 331 | MINNEAPOLIS | Minnesota | SPRINT SPECTRUM L.P. | PCS | More |
| 661 | 331 | BAKERSFIELD: MAIN D | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 662 | 331 | CORINTH | Mississippi | TELEPAK NETWORKS, INC. - MS | | More |
| 678 | 331 | AUSTELL | Georgia | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 682 | 331 | ARLINGTON | Texas | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 701 | 331 | PARK RIVER | North Dakota | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND | WIRELESS PROV | More |
| 702 | 331 | LAS VEGAS | Nevada | COX NEVADA TELCOM, LLC - NV | | More |
| 703 | 331 | MANASSAS | Virginia | VERIZON SOUTH INC.-VA (CONTEL) | IND. TELCO | More |
| 704 | 331 | CHARLOTTE | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 705 | 331 | BARRIE | Ontario | TELUS Mobility | PCS | More |
| 706 | 331 | ROME | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | WIRELESS PROV | More |
| 707 | 331 | SANTA ROSA | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 708 | 331 | HARVEY | Illinois | AMERITECH ILLINOIS | RBOC | More |
| 712 | 331 | SPIRITLAKE | Iowa | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 713 | 331 | HOUSTON (MCI) | Texas | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 714 | 331 | ANAHEIM | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 715 | 331 | BAYFIELD | Wisconsin | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | WIRELESS PROV | More |
| 716 | 331 | BUFFALO | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 717 | 331 | CHAMBERSBURG | Pennsylvania | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 718 | 331 | NYCZ 7 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 719 | 331 | COLORADO SPRINGS | Colorado | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 720 | 331 | DENVER | Colorado | SPRINT SPECTRUM L.P. | PCS | More |
| 724 | 331 | GREENSBURG | Pennsylvania | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | WIRELESS PROV | More |
| 727 | 331 | CLEARWATER | Florida | AERIAL COMMUNICATIONS | WIRELESS PROV | More |
| 731 | 331 | BOLIVAR | Tennessee | SI WIRELESS, LLC | | More |
| 732 | 331 | METUCHEN | New Jersey | TELCOVE INVESTMENT, LLC - NJ | CLEC | More |
| 734 | 331 | WAYNE | Michigan | COMCAST PHONE OF MICHIGAN, LLC - MI | CLEC | More |
| 740 | 331 | ATHENS | Ohio | LEVEL 3 COMMUNICATIONS, LLC - OH | CLEC | More |
| 757 | 331 | CAPE CHARLES | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 760 | 331 | SAN DIEGO | California | AT&T LOCAL | CLEC | More |
| 763 | 331 | TWINCITIES | Minnesota | COMCAST PHONE OF MINNESOTA, INC. - MN | CLEC | More |
| 765 | 331 | HARTFORD CITY | Indiana | AMERITECH INDIANA | RBOC | More |
| 770 | 331 | ATLANTA NORTHEAST | Georgia | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 773 | 331 | CHICAGO | Illinois | MCI WORLDCOM COMMUNICATIONS, INC. - IL | CLEC | More |
| 774 | 331 | ATTLEBORO | Massachusetts | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 775 | 331 | SPARKS | Nevada | NEVADA BELL | RBOC | More |
| 778 | 331 | Vancouver | British Columbia | Bell West Inc. | | More |
| 780 | 331 | CALLING LAKE | Alberta | TELUS | IND. TELCO | More |
| 781 | 331 | WEYMOUTH | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 785 | 331 | LAWRENCE | Kansas | SOUTHWESTERN BELL | RBOC | More |
| 786 | 331 | MIAMI | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 787 | 331 | GUAYNABO | Puerto Rico | OPTIVON TELECOMMUNICATIONS SERVICES, INC. - PR | | More |
| 801 | 331 | SALT LAKE | Utah | XO UTAH, INC. | CLEC | More |
| 802 | 331 | RANDOLPH | Vermont | TOPSHAM COMMUNICATIONS, LLC | | More |
| 803 | 331 | COLUMBIA | South Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | WIRELESS PROV | More |
| 804 | 331 | ASHLAND | Virginia | QWEST COMMUNICATIONS COMPANY, LLC | CLEC | More |
| 805 | 331 | SANTA BARBARA | California | SPRINT SPECTRUM L.P. | PCS | More |
| 806 | 331 | AMARILLO | Texas | NTS COMMUNICATIONS, INC. | CLEC | More |
| 808 | 331 | KONA | Hawaii | HAWAIIAN TELCOM, INC. - HI | IND. TELCO | More |
| 812 | 331 | BLOOMINGTON | Indiana | AMERITECH INDIANA | RBOC | More |
| 813 | 331 | TAMPASTH | Florida | LEVEL 3 COMMUNICATIONS, LLC - FL | CLEC | More |
| 814 | 331 | BRADFORD | Pennsylvania | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | WIRELESS PROV | More |
| 815 | 331 | CHICAGO | Illinois | BROADWING COMMUNICATIONS, LLC - IL | CLEC | More |
| 816 | 331 | BELTON | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 817 | 331 | ARLINGTON | Texas | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 818 | 331 | LOS ANGELES | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 819 | 331 | UMIUJAQ | Quebec | Bell Canada | IND. TELCO | More |
| 828 | 331 | SYLVA | North Carolina | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 830 | 331 | DEL RIO | Texas | GUADALUPE VALLEY COMMUNICATIONS SYTEMS, LP - TX | | More |
| 831 | 331 | SANTA CRUZ | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 832 | 331 | KATY | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 843 | 331 | EASTCONWAY | South Carolina | SUNCOM DBA T-MOBILE USA | PCS | More |
| 845 | 331 | KINGSTON | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 847 | 331 | CHICAGO | Illinois | SPRINT SPECTRUM L.P. | PCS | More |
| 850 | 331 | PENSACOLA | Florida | NEWSOUTH COMMUNICATIONS, INC. DBA UNIVERSALCOM FL | CLEC | More |
| 856 | 331 | BERLIN | New Jersey | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 857 | 331 | CAMBRIDGE | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 858 | 331 | RANCHO PENASQUITOS | California | AT&T WIRELESS SERVICES | WIRELESS PROV | More |
| 859 | 331 | LAKESIDE PARK | Kentucky | CINCINNATI BELL, INC. | IND. TELCO | More |
| 860 | 331 | HARTFORD | Connecticut | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 864 | 331 | GREENVILLE | South Carolina | NUVOX COMMUNICATIONS | CLEC | More |
| 865 | 331 | KNOXVILLE | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 870 | 331 | HOPE | Arkansas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | WIRELESS PROV | More |
| 901 | 331 | MEMPHIS | Tennessee | SPRINT SPECTRUM L.P. | PCS | More |
| 902 | 331 | NEW GLASGOW | Nova Scotia | Aliant Telecom (NS) | IND. TELCO | More |
| 903 | 331 | LONGVIEW | Texas | LEVEL 3 COMMUNICATIONS, LLC - TX | CLEC | More |
| 905 | 331 | BURLINGTON | Ontario | Bell Canada | IND. TELCO | More |
| 907 | 331 | ANCHORAGE | Alaska | ACS OF ANCHORAGE, INC. | IND. TELCO | More |
| 908 | 331 | NEW BRUNSWICK | New Jersey | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | WIRELESS PROV | More |
| 909 | 331 | SANTA ANA | California | XO CALIFORNIA, INC. | CLEC | More |
| 910 | 331 | ROCKINGHAM | North Carolina | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 912 | 331 | DOUGLAS | Georgia | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 913 | 331 | KANSASCITY | Kansas | BROOKS FIBER COMMUNICATIONS - KS | CLEC | More |
| 914 | 331 | KINGSTON | New York | TELENGY L.L.C. - NY | | More |
| 915 | 331 | ODESSA | Texas | SOUTHWESTERN BELL | RBOC | More |
| 916 | 331 | NORTH HIGHLANDS | California | PACIFIC BELL | RBOC | More |
| 917 | 331 | NEW YORK CITY ZONE | New York | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 918 | 331 | BARTLESVILLE | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 919 | 331 | ANGIER | North Carolina | CAROLINA TEL AND TEL CO., LLC DBA CENTURYLINK | IND. TELCO | More |
| 920 | 331 | SHEBOYGAN | Wisconsin | SPRINT SPECTRUM L.P. | PCS | More |
| 925 | 331 | ANTIOCH | California | U.S. TELEPACIFIC CORP. - CA | CLEC | More |
| 928 | 331 | GILA BEND | Arizona | BANDWIDTH.COM CLEC, LLC - AZ | | More |
| 929 | 331 | NWYRCYZN06 | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 931 | 331 | BAXTER | Tennessee | CHARTER FIBERLINK - TENNESSEE, LLC - TN | | More |
| 937 | 331 | DAYTON | Ohio | AMERITECH OHIO | RBOC | More |
| 940 | 331 | CHILDRESS | Texas | UNITED STATES CELLULAR CORP. - TEXAS | WIRELESS PROV | More |
| 941 | 331 | SARASOTA | Florida | VERIZON FLORIDA INC. | IND. TELCO | More |
| 949 | 331 | IRVINE | California | MPOWER COMMUNICATIONS CORP - CA | CLEC | More |
| 951 | 331 | TEMECULA | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 952 | 331 | NORWOOD | Minnesota | SPRINT COMMUNICATIONS COMPANY, L.P. - MN | CLEC | More |
| 954 | 331 | NORTH DADE | Florida | TCG SOUTH FLORIDA | CLEC | More |
| 956 | 331 | MCALLEN | Texas | SPRINT SPECTRUM L.P. | PCS | More |
| 970 | 331 | DENVER | Colorado | SPRINT SPECTRUM L.P. | PCS | More |
| 971 | 331 | PORTLAND | Oregon | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 972 | 331 | DALLAS (LOGIX) | Texas | LOGIX COMMUNICATIONS CORPORATION - TX | CLEC | More |
| 973 | 331 | BOONTON | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 978 | 331 | MARLBOROUGH | Massachusetts | LEVEL 3 COMMUNICATIONS, LLC - MA | CLEC | More |
| 979 | 331 | ANGLETON | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 985 | 331 | LULING | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 989 | 331 | ALMA | Michigan | FRONTIER NORTH, INC. - MI | IND. TELCO | More |
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