Area
Code | Prefix | City/Switch Name
(Click for city search) | State/Prov.
Area Map | Telephone Company
Web link | Telco
Type | More
Info |
|---|
| 201 | 557 | JERSEYCITY | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 202 | 557 | WSHNGTNZN1 | District of Columbia | VERIZON WASHINGTON, DC INC. | RBOC | More |
| 203 | 557 | WESTPORT | Connecticut | CABLEVISION LIGHTPATH, INC. - CT | CLEC | More |
| 204 | 557 | Winnipeg | Manitoba | TELUS Mobility | PCS | More |
| 205 | 557 | XXXXXXXXXX | Alabama | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 206 | 557 | SEATTLE | Washington | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 207 | 557 | AUGUSTA | Maine | UNITED STATES CELLULAR CORP. - MAINE | WIRELESS PROV | More |
| 208 | 557 | IDAHOFALLS | Idaho | QWEST CORPORATION | RBOC | More |
| 209 | 557 | MODESTO | California | PACIFIC BELL | RBOC | More |
| 210 | 557 | SANANTONIO | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 212 | 557 | NWYRCYZN01 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 214 | 557 | GRANDPRARI | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 215 | 557 | PHLDLPHZN1 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 216 | 557 | CLEVELAND | Ohio | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 217 | 557 | SPRINGFLD | Illinois | AMERITECH ILLINOIS | RBOC | More |
| 218 | 557 | EABERCROMB | North Dakota | RED RIVER RURAL TEL ASSN DBA RED RIVER COMM - MN | IND. TELCO | More |
| 225 | 557 | XXXXXXXXXX | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 228 | 557 | XXXXXXXXXX | Mississippi | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 229 | 557 | NORMANPARK | Georgia | MCC TELEPHONY OF GEORGIA, LLC - GA | | More |
| 231 | 557 | MUSKEGON | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
| 239 | 557 | BONITA SPG | Florida | HOSTING-NETWORK, INC. | | More |
| 248 | 557 | SOUTHFIELD | Michigan | AMERITECH MICHIGAN | RBOC | More |
| 250 | 557 | PORT CLEMENTS | British Columbia | TELUS | IND. TELCO | More |
| 251 | 557 | XXXXXXXXXX | Alabama | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 252 | 557 | ROCKYMOUNT | North Carolina | LEVEL 3 COMMUNICATIONS, LLC - NC | | More |
| 256 | 557 | CROSSVILLE | Alabama | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | WIRELESS PROV | More |
| 260 | 557 | FORT WAYNE | Indiana | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 267 | 557 | PHPHSBZN42 | Pennsylvania | ATX TELECOMMUNICATIONS SERVICES, LTD | CLEC | More |
| 270 | 557 | PADUCAH | Kentucky | E-TEL, LLC - KY | | More |
| 281 | 557 | LEAGUECITY | Texas | GTE-SW DBA VERIZON SW INC.-TX | IND. TELCO | More |
| 301 | 557 | MECHANCSVL | District of Columbia | BROADWING COMMUNICATIONS. LLC - MD | CLEC | More |
| 303 | 557 | AURORA | Colorado | GLOBAL CROSSING LOCAL SERVICES, INC.-CO | CLEC | More |
| 304 | 557 | PRINCETON | West Virginia | SPRINT SPECTRUM L.P.- WV | PCS | More |
| 305 | 557 | MIAMI | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 308 | 557 | MINDEN | Nebraska | SPRINT SPECTRUM L.P. | PCS | More |
| 309 | 557 | BLOOMINGTN | Illinois | FRONTIER NORTH, INC. - IL | IND. TELCO | More |
| 310 | 557 | BEVERLYHLS | California | PACIFIC BELL | RBOC | More |
| 312 | 557 | CHICGOZN01 | Illinois | AMERITECH ILLINOIS | RBOC | More |
| 313 | 557 | DETROITZN1 | Michigan | XO COMMUNICATIONS SERVICES, INC. - MI | CLEC | More |
| 315 | 557 | CLINTON | New York | TELCOVE ATLANTIC, INC. - NY | CLEC | More |
| 316 | 557 | WICHITA | Kansas | BIRCH TELECOM OF KANSAS, INC. | CLEC | More |
| 317 | 557 | INDIANAPLS | Indiana | SPRINT SPECTRUM L.P. | PCS | More |
| 318 | 557 | MONROE | Louisiana | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 319 | 557 | DUBUQUE | Iowa | QWEST CORPORATION | RBOC | More |
| 320 | 557 | ST JOSEPH | Minnesota | CHARTER FIBERLINK CCO, LLC - MN | | More |
| 321 | 557 | MELBOURNE | Florida | LEVEL 3 COMMUNICATIONS, LLC - FL | CLEC | More |
| 323 | 557 | LSAN DA 13 | California | TW TELECOM OF CALIFORNIA LP - CA | CLEC | More |
| 330 | 557 | LAKEMILTON | Ohio | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 334 | 557 | XXXXXXXXXX | Alabama | US LEC OF ALABAMA, INC. | CLEC | More |
| 336 | 557 | BURLINGTON | North Carolina | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 337 | 557 | XXXXXXXXXX | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 347 | 557 | NWYRCYZN05 | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 352 | 557 | GROVELAND | Florida | DELTACOM, INC. - FL | CLEC | More |
| 360 | 557 | CHEHALIS | Washington | BROADWING COMMUNICATIONS, LLC - WA | CLEC | More |
| 361 | 557 | ROCKPORT | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 385 | 557 | MIDVALE | Utah | COMCAST PHONE OF UTAH, LLC - UT | GENERAL | More |
| 401 | 557 | CENTREDALE | Rhode Island | NET2000 COMM SVCS RI | | More |
| 402 | 557 | OMAHA | Nebraska | QWEST CORPORATION | RBOC | More |
| 403 | 557 | CALGARY | Alberta | Shaw Telecom Inc. | | More |
| 404 | 557 | ATLANTA | Georgia | SPRINT SPECTRUM L.P. | PCS | More |
| 405 | 557 | OKLA CITY | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 406 | 557 | JORDAN | Montana | MID-RIVERS TELEPHONE COOPERATIVE, INC. | IND. TELCO | More |
| 407 | 557 | CELEBRATN | Florida | SPRINT SPECTRUM L.P. | PCS | More |
| 408 | 557 | SNJS WEST | California | PACIFIC BELL | RBOC | More |
| 409 | 557 | BEAUMONT | Texas | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 410 | 557 | FORK | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 412 | 557 | PTGSBNZN20 | Pennsylvania | INTERMEDIA COMMUNICATIONS INC. - PA | CLEC | More |
| 413 | 557 | CHICOPEE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 414 | 557 | MILWAUKZN1 | Wisconsin | AMERICAN MESSAGING (AM), INC. | | More |
| 415 | 557 | SNFC CNTRL | California | PACIFIC BELL | RBOC | More |
| 416 | 557 | Toronto | Ontario | Bell Mobility | WIRELESS PROV | More |
| 417 | 557 | HERMITAGE | Missouri | RYSTEC, INC | | More |
| 418 | 557 | CHICOUTIMI | Quebec | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 419 | 557 | SANDUSKY | Ohio | LONG DISTANCE OF MICHIGAN, INC. DBA LDMI - OH | | More |
| 423 | 557 | JOHNSON CY | Tennessee | SUNCOM DBA T-MOBILE USA | PCS | More |
| 425 | 557 | ISSAQUAH | Washington | QWEST CORPORATION | RBOC | More |
| 432 | 557 | TERMINAL | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 435 | 557 | LOGAN | Utah | BANDWIDTH.COM CLEC, LLC - UT | | More |
| 440 | 557 | RUSSELL | Ohio | TIME WARNER CABLE INFORMATION SVCS (OHIO) - OH | | More |
| 443 | 557 | GLENBURNIE | Maryland | ALLEGIANCE TELECOM, INC. - MD | CLEC | More |
| 450 | 557 | Pont-Viau | Quebec | MTS Allstream Inc. | CLEC | More |
| 469 | 557 | CARROLLTON | Texas | GTE-SW DBA VERIZON SW INC.-TX | IND. TELCO | More |
| 480 | 557 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 484 | 557 | PHPHSBZN26 | Pennsylvania | OMNIPOINT COMMUNICATIONS ENTERPRISES, L.P. | WIRELESS PROV | More |
| 501 | 557 | BAUXITE | Arkansas | SOUTHWESTERN BELL | RBOC | More |
| 502 | 557 | XXXXXXXXXX | Kentucky | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 503 | 557 | CLACKAMAS | Oregon | QWEST CORPORATION | RBOC | More |
| 504 | 557 | XXXXXXXXXX | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 505 | 557 | RODEO | Arizona | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 506 | 557 | SAINT JOHN | New Brunswick | Aliant Telecom(NB) | IND. TELCO | More |
| 507 | 557 | FRANKLIN | Minnesota | MINNESOTA VALLEY TELEPHONE CO., INC. | IND. TELCO | More |
| 508 | 557 | SEEKONK | Massachusetts | COMCAST PHONE OF MASSACHUSETTS, INC. - MA | CLEC | More |
| 509 | 557 | OMAK | Washington | LEVEL 3 COMMUNICATIONS, LLC - WA | CLEC | More |
| 510 | 557 | FRNK MAIN | California | SPRINT SPECTRUM L.P. | PCS | More |
| 512 | 557 | SAN MARCOS | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 513 | 557 | CINCINNATI | Ohio | CINCINNATI BELL, INC. | IND. TELCO | More |
| 514 | 557 | Montreal | Quebec | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 515 | 557 | DES MOINES | Iowa | QWEST CORPORATION | RBOC | More |
| 516 | 557 | NASSAUZN09 | New York | SPRINT SPECTRUM L.P. | PCS | More |
| 517 | 557 | SEBEWAING | Michigan | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 518 | 557 | SCHENCTADY | New York | GLOBAL CROSSING LOCAL SERVICES, INC.-NY | CAP | More |
| 519 | 557 | Thamesford | Ontario | Execulink Telecom Inc. | IND. TELCO | More |
| 520 | 557 | TUCSON | Arizona | NETWORK SERVICES LLC (TSR) | WIRELESS PROV | More |
| 530 | 557 | WILLOW CRK | California | EDGE WIRELESS, LLC | WIRELESS | More |
| 540 | 557 | BLACKSBURG | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 541 | 557 | LINCOLN CY | Oregon | UNITED TELEPHONE-NORTHWEST-OR DBA CENTURYLINK - OR | IND. TELCO | More |
| 559 | 557 | FOWLER | California | TIME WARNER TELECOM OF CALIFORNIA, L.P. | CLEC | More |
| 561 | 557 | WPALMBEACH | Florida | COMCAST PHONE OF FLORIDA, LLC - FL | CLEC | More |
| 562 | 557 | WHITTIER | California | THE TELEPHONE CONNECTION LOCAL SERVICES, LLC | CLEC | More |
| 563 | 557 | DUBUQUE | Iowa | QWEST CORPORATION | RBOC | More |
| 570 | 557 | NEWMILFORD | Pennsylvania | NEP CELLCORP, INC. | | More |
| 571 | 557 | WSNGTNZN08 | Virginia | MCI WORLDCOM COMMUNICATIONS, INC. - VA | CLEC | More |
| 573 | 557 | ELDON | Missouri | LEVEL 3 COMMUNICATIONS, LLC - MO | CLEC | More |
| 575 | 557 | RODEO | New Mexico | VALLEY TELEPHONE COOPERATIVE, INC. | IND. TELCO | More |
| 586 | 557 | MT CLEMENS | Michigan | SPRINT SPECTRUM L.P. | PCS | More |
| 587 | 557 | Edmonton | Alberta | Fibernetics Corporation | | More |
| 601 | 557 | QUITMAN | Mississippi | LEVEL 3 COMMUNICATIONS, LLC - MS | | More |
| 602 | 557 | PHOENIX | Arizona | TELEPORT COMMUNICATIONS GROUP - PHOENIX | CAP | More |
| 603 | 557 | NASHUA | Massachusetts | SPRINT SPECTRUM L.P. | PCS | More |
| 604 | 557 | ABBOTSFORD | British Columbia | TELUS | IND. TELCO | More |
| 605 | 557 | CLEARFIELD | South Dakota | VIVIAN TEL CO DBA GOLDEN WEST TELECOMMUNICATIONS | IND. TELCO | More |
| 606 | 557 | XXXXXXXXXX | Kentucky | MCC TELEPHONY OF THE SOUTH, LLC - KY | | More |
| 608 | 557 | ONTARIO | Wisconsin | MICHIGAN WIRELESS, LLC DBA BUG TUSSEL WIRELESS | | More |
| 609 | 557 | LAWRENCEVL | New Jersey | AT&T LOCAL | CLEC | More |
| 610 | 557 | PHPHSBZN22 | Pennsylvania | TCG NEW JERSEY, INC. - PA | CLEC | More |
| 613 | 557 | Embrun | Ontario | Bragg Communications Inc. | CLEC | More |
| 614 | 557 | COLUMBUS | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 615 | 557 | NASHVILLE | Tennessee | WINDSTREAM NORLIGHT, INC. - TN | | More |
| 616 | 557 | SAND LAKE | Michigan | SPRINT SPECTRUM L.P. | PCS | More |
| 617 | 557 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 618 | 557 | HARDINVL | Illinois | FRONTIER NORTH, INC. - IL | IND. TELCO | More |
| 619 | 557 | SNDG SNDG | California | PACIFIC BELL | RBOC | More |
| 630 | 557 | KANEVILLE | Illinois | AMERITECH ILLINOIS | RBOC | More |
| 631 | 557 | SELDEN | New York | LOCAL ACCESS LLC - NY | | More |
| 636 | 557 | ST LOUIS | Missouri | ALLEGIANCE TELECOM, INC. - MO | | More |
| 641 | 557 | KLEMME | Iowa | WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS | | More |
| 646 | 557 | NYCZ 1 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 647 | 557 | Toronto | Ontario | Iristel Inc. | | More |
| 650 | 557 | PACIFICA | California | PACIFIC BELL | RBOC | More |
| 660 | 557 | SWEET SPG | Missouri | SOCKET TELECOM, LLC - MO | | More |
| 661 | 557 | ARVIN | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 662 | 557 | XXXXXXXXXX | Mississippi | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 678 | 557 | ATLANTA | Georgia | POWERTEL ATLANTA LICENSES, INC. | WIRELESS PROV | More |
| 682 | 557 | ARLINGTON | Texas | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 701 | 557 | BISMARCK | North Dakota | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 702 | 557 | LAS VEGAS | Nevada | SPRINT SPECTRUM L.P. | PCS | More |
| 703 | 557 | WASZ 8 | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 704 | 557 | CHARLOTTE | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 705 | 557 | Kapuskasing | Ontario | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 706 | 557 | RUTLEDGE | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 707 | 557 | VALLEJO | California | PACIFIC BELL | RBOC | More |
| 708 | 557 | LA GRANGE | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 709 | 557 | Come By Chance | Newfoundland | Bragg Communications Inc. | CLEC | More |
| 713 | 557 | HOUSTON | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 714 | 557 | SANTA ANA | California | PACIFIC BELL | RBOC | More |
| 715 | 557 | ST CROIX FALLS | Wisconsin | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | WIRELESS PROV | More |
| 716 | 557 | HINSDALE | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 717 | 557 | MARIETTA | Pennsylvania | CORE COMMUNICATIONS, INC. - PA | | More |
| 718 | 557 | NYCZ 10 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 719 | 557 | PUEBLO | Colorado | QWEST CORPORATION | RBOC | More |
| 720 | 557 | DENVER | Colorado | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | WIRELESS PROV | More |
| 724 | 557 | UNIONTOWN (FAYETTE) | Pennsylvania | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 727 | 557 | FEATHER SOUND | Florida | VERIZON FLORIDA INC. | IND. TELCO | More |
| 731 | 557 | XXXXXXXXXX | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 732 | 557 | TOMS RIVER | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 734 | 557 | SOUTHFIELD | Michigan | GLOBAL CROSSING TELEMANAGEMENT, INC.-MI | CLEC | More |
| 740 | 557 | PENNSVILLE | Ohio | UNITED TEL. CO. OF OHIO - CENTURYLINK | IND. TELCO | More |
| 757 | 557 | NFKZ 2 | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 760 | 557 | SAN DIEGO | California | XO CALIFORNIA, INC. | CLEC | More |
| 763 | 557 | MNPZ 9 | Minnesota | QWEST CORPORATION | RBOC | More |
| 765 | 557 | ELWOOD | Indiana | AMERITECH INDIANA | RBOC | More |
| 770 | 557 | STONE MOUNTAIN | Georgia | COMCAST PHONE OF GEORGIA, LLC - GA | CLEC | More |
| 773 | 557 | CHICAGO ZONE 3 | Illinois | OVATION COMMUNICATIONS OF ILLINOIS, INC. | CLEC | More |
| 775 | 557 | EMPIRE | Nevada | NEVADA BELL | RBOC | More |
| 780 | 557 | Spirit River | Alberta | Bell Mobility | WIRELESS PROV | More |
| 781 | 557 | CAMBRIDGE | Massachusetts | TELEPORT COMMUNICATIONS GROUP - BOSTON | CAP | More |
| 785 | 557 | DOWNS | Kansas | CUNNINGHAM COMMUNICATIONS, INC. - KS | | More |
| 787 | 557 | CAYEY | Puerto Rico | SPRINT SPECTRUM L.P. | PCS | More |
| 801 | 557 | SALT LAKE CITY | Utah | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 802 | 557 | BURLINGTON | Vermont | BANDWIDTH.COM CLEC, LLC - VT | | More |
| 803 | 557 | NORTH AUGUSTA | South Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 804 | 557 | PROVIDENCE FORGE | Virginia | COX VIRGINIA TELCOM, INC. - VA | CLEC | More |
| 805 | 557 | THOUSAND OAKS | California | VERIZON CALIFORNIA INC.-CA (GTE) | IND. TELCO | More |
| 806 | 557 | LUBBOCK | Texas | AT&T LOCAL | CLEC | More |
| 808 | 557 | HONOLULU | Hawaii | SPRINT SPECTRUM L.P. | PCS | More |
| 810 | 557 | SANDUSKY | Michigan | AMERICAN MESSAGING (AM), INC. | | More |
| 812 | 557 | MONTGOMERY | Indiana | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 814 | 557 | DRIFTWOOD | Pennsylvania | CORE COMMUNICATIONS, INC. - PA | | More |
| 815 | 557 | CHICAGO | Illinois | SPRINT SPECTRUM L.P. | PCS | More |
| 817 | 557 | FORT WORTH ARLINGTO | Texas | SOUTHWESTERN BELL | RBOC | More |
| 818 | 557 | BURBANK | California | PACIFIC BELL | RBOC | More |
| 819 | 557 | Aylmer | Quebec | Videotron General Partnership | CLEC | More |
| 828 | 557 | SUIT | North Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | WIRELESS PROV | More |
| 830 | 557 | SEGUIN MCQUEENEY | Texas | SOUTHWESTERN BELL | RBOC | More |
| 832 | 557 | LANGHAM CREEK | Texas | TELCOVE OPERATIONS, INC. - TX | CLEC | More |
| 843 | 557 | CHARLESTON | South Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 845 | 557 | BARRYVILLE | New York | CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY | IND. TELCO | More |
| 847 | 557 | CHICAGO | Illinois | BROADWING COMMUNICATIONS, LLC - IL | CLEC | More |
| 850 | 557 | MARIANNA | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 856 | 557 | CAMDEN | New Jersey | COMCAST BUSINESS COMMUNICATIONS, INC. - NJ | | More |
| 860 | 557 | EAST HARTFORD | Connecticut | SOUTHERN NEW ENGLAND TELEPHONE CO. | IND. TELCO | More |
| 863 | 557 | HAINES CITY | Florida | SPRINT SPECTRUM L.P. | PCS | More |
| 864 | 557 | GREENVILLE | South Carolina | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 870 | 557 | NASHVILLE | Arkansas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | WIRELESS PROV | More |
| 901 | 557 | XXXXXXXXXX | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 902 | 557 | CHARLOTTETOWN | PE | Aliant Telecom (PEI) | IND. TELCO | More |
| 903 | 557 | LONGVIEW | Texas | SPRINT SPECTRUM L.P. | PCS | More |
| 904 | 557 | JACKSONVILLE | Florida | TCG SOUTH FLORIDA | CLEC | More |
| 905 | 557 | Mount Albert | Ontario | Rogers Communications Partnership (Cable) | | More |
| 907 | 557 | KONGIGANAK | Alaska | UNITED UTILITIES, INC. | IND. TELCO | More |
| 908 | 557 | NEWARK | New Jersey | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 909 | 557 | SAN BERNADINO | California | AT&T LOCAL | CLEC | More |
| 910 | 557 | HAMLET | North Carolina | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 912 | 557 | REIDSVILLE | Georgia | GEORGIA WINDSTREAM, INC. | IND. TELCO | More |
| 913 | 557 | OVERLAND PARK | Kansas | SOUTHWESTERN BELL | RBOC | More |
| 914 | 557 | WHITE PLAINS | New York | SPRINT SPECTRUM L.P. | PCS | More |
| 915 | 557 | MIDLAND | Texas | WESTERN WIRELESS CORPORATION-TX | WIRELESS PROV | More |
| 916 | 557 | SACRAMENTO | California | PACIFIC BELL | RBOC | More |
| 917 | 557 | NEW YORK | New York | SPRINT SPECTRUM L.P. | PCS | More |
| 918 | 557 | TULSA | Oklahoma | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 919 | 557 | FUQUAY-VARINA | North Carolina | CAROLINA TEL AND TEL CO., LLC DBA CENTURYLINK | IND. TELCO | More |
| 920 | 557 | BEAVER DAM | Wisconsin | TELEPORT COMMUNICATIONS GROUP - MILWAUKEE | CAP | More |
| 925 | 557 | HAYWARD | California | MCI WORLDCOM COMMUNICATIONS, INC., CA | CLEC | More |
| 931 | 557 | XXXXXXXXXX | Tennessee | LEVEL 3 COMMUNICATIONS, LLC - TN | CLEC | More |
| 936 | 557 | BROADDUS | Texas | KMC TELECOM II, INC. - TX | CLEC | More |
| 937 | 557 | DAYTON | Ohio | LEVEL 3 COMMUNICATIONS, LLC - OH | CLEC | More |
| 940 | 557 | WICHITA FALLS LAMAR | Texas | SOUTHWESTERN BELL | RBOC | More |
| 941 | 557 | BONITA SPRINGS | Florida | NEXTEL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 949 | 557 | IRVINE | California | U.S. TELEPACIFIC CORP. - CA | CLEC | More |
| 954 | 557 | DEERFIELD BEACH | Florida | SPRINT SPECTRUM L.P. | PCS | More |
| 970 | 557 | GRANBY | Colorado | LEVEL 3 COMMUNICATIONS, LLC - CO | CLEC | More |
| 972 | 557 | DALLAS RYLIE | Texas | SOUTHWESTERN BELL | RBOC | More |
| 973 | 557 | POMPTON LAKES | New Jersey | BROADWING COMMUNICATIONS, LLC - NJ | CLEC | More |
| 978 | 557 | LAWRENCE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 979 | 557 | HOUSTON | Texas | SPRINT SPECTRUM L.P. | PCS | More |
| 985 | 557 | XXXXXXXXXX | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 989 | 557 | SEBEWAING | Michigan | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
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