Area
Code | Prefix | City/Switch Name
(Click for city search) | State/Prov.
Area Map | Telephone Company
Web link | Telco
Type | More
Info |
|---|
| 201 | 551 | JERSEYCITY | New Jersey | TELEPORT COMMUNICATIONS AMERICA, LLC - NJ | CAP | More |
| 202 | 551 | WSHNGTNZN1 | District of Columbia | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | CLEC | More |
| 203 | 551 | BRIDGEPORT | Connecticut | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | CAP | More |
| 205 | 551 | ETHELSVL | Alabama | CHARTER FIBERLINK - ALABAMA, LLC - AL | | More |
| 206 | 551 | SEATTLE | Washington | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 207 | 551 | PRESQUE IS | Maine | UNITED STATES CELLULAR - ME | WIRELESS PROV | More |
| 208 | 551 | SWEET | Idaho | TDS METROCOM, LLC - ID | | More |
| 209 | 551 | MODESTO | California | PACIFIC BELL | RBOC | More |
| 210 | 551 | SAN ANTONIO | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 212 | 551 | NWYRCYZN01 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 213 | 551 | LSAN DA 07 | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 214 | 551 | MCKINNEY | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 215 | 551 | PHLDLPHZN1 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 216 | 551 | CLEVELAND | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 217 | 551 | HAMILTON | Illinois | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | | More |
| 218 | 551 | CROOKSTON | Minnesota | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 224 | 551 | DEERFIELD | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 229 | 551 | THOMASVL | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 240 | 551 | WSNGTNZN10 | Maryland | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 248 | 551 | ROYAL OAK | Michigan | MICHIGAN BELL TEL CO | RBOC | More |
| 250 | 551 | LSON | British Columbia | TELUS Mobility | WIRELESS PROV | More |
| 251 | 551 | PINE APPLE | Alabama | ONVOY, LLC - AL | | More |
| 252 | 551 | GREENVILLE | North Carolina | CAROLINA TEL AND TEL CO., LLC DBA CENTURYLINK | IND. TELCO | More |
| 254 | 551 | KILLEEN | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 256 | 551 | HUNTSVILLE | Alabama | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 262 | 551 | KENOSHA | Wisconsin | WISCONSIN BELL INC | RBOC | More |
| 267 | 551 | PHLDLPHZN3 | Pennsylvania | BANDWIDTH.COM CLEC, LLC - PA | | More |
| 269 | 551 | COVERT | Michigan | LEVEL 3 COMMUNICATIONS, LLC - MI | CLEC | More |
| 270 | 551 | JORDAN | Kentucky | BANDWIDTH.COM CLEC, LLC - KY | | More |
| 281 | 551 | HOUSTON | Texas | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 301 | 551 | WSHNGTNZN3 | Maryland | BALTIMORE-WASHINGTON TELEPHONE (BWT) | CLEC | More |
| 302 | 551 | WILMINGTON | Delaware | NUSO, LLC | | More |
| 303 | 551 | DENVER | Colorado | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 304 | 551 | WHELNGZON1 | West Virginia | LEVEL 3 COMMUNICATIONS, LLC - WV | | More |
| 305 | 551 | MIAMI | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 306 | 551 | Regina | Saskatchewan | SaskTel Mobility | | More |
| 307 | 551 | LARAMIE | Wyoming | KMC TELECOM V, INC. - WY | | More |
| 308 | 551 | MINDEN | Nebraska | SPRINT SPECTRUM L.P. | PCS | More |
| 309 | 551 | MATHERVL | Illinois | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | | More |
| 310 | 551 | BEVERLYHLS | California | PACIFIC BELL | RBOC | More |
| 312 | 551 | CHICGOZN01 | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 313 | 551 | DETROITZN6 | Michigan | MICHIGAN BELL TEL CO | RBOC | More |
| 314 | 551 | LADUE | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 315 | 551 | SYRACUSE | New York | CHOICE ONE COMMUNICATIONS, INC. - NY | CLEC | More |
| 316 | 551 | WICHITA | Kansas | BIRCH TELECOM OF KANSAS, INC. | CLEC | More |
| 317 | 551 | INDIANAPLS | Indiana | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | | More |
| 318 | 551 | MER ROUGE | Louisiana | METROPCS, INC. | | More |
| 319 | 551 | CEDAR RPDS | Iowa | UNITED STATES CELLULAR - IA | WIRELESS PROV | More |
| 323 | 551 | LSAN DA 03 | California | PACIFIC BELL | RBOC | More |
| 330 | 551 | HARTVILLE | Ohio | GLOBAL CROSSING LOCAL SERVICES, INC. - OH | CLEC | More |
| 331 | 551 | LOMBARD | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 334 | 551 | MONTGOMERY | Alabama | WINDSTREAM NUVOX, INC. | CLEC | More |
| 336 | 551 | BOONVILLE | North Carolina | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | CLEC | More |
| 337 | 551 | NEW IBERIA | Louisiana | TELEPORT COMMUNICATIONS AMERICA LA - LLC | | More |
| 346 | 551 | BAMMEL | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 347 | 551 | NWYRCYZN12 | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 352 | 551 | EUSTIS | Florida | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 360 | 551 | SILVERDALE | Washington | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 361 | 551 | PORTLAVACA | Texas | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | IND. TELCO | More |
| 385 | 551 | PROVO | Utah | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 401 | 551 | NEWPORT | Rhode Island | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | CAP | More |
| 402 | 551 | OMAHA | Nebraska | QWEST CORPORATION | RBOC | More |
| 403 | 551 | Vauxhall | Alberta | Bell Mobility | WIRELESS PROV | More |
| 404 | 551 | ATLANTA | Georgia | METROPCS, INC. | | More |
| 405 | 551 | OKLA CITY | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 406 | 551 | BOZEMAN | Montana | LEVEL 3 COMMUNICATIONS, LLC - MT | | More |
| 407 | 551 | WINTERPARK | Florida | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | CLEC | More |
| 408 | 551 | SNJS WEST | California | PACIFIC BELL | RBOC | More |
| 409 | 551 | BRENHAM | Texas | SOUTHWESTERN BELL - TX | RBOC | More |
| 410 | 551 | SEVERN | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 412 | 551 | PTTSBGZON1 | Pennsylvania | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 413 | 551 | LENOX | Massachusetts | CTC COMMUNICATIONS CORP. - MA | | More |
| 414 | 551 | MILWAUKZN1 | Wisconsin | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 415 | 551 | SNFC CNTRL | California | PACIFIC BELL | RBOC | More |
| 416 | 551 | TORONTO | Ontario | Rogers Communications Partnership (Cable) | | More |
| 417 | 551 | OZARK | Missouri | RYSTEC, INC | | More |
| 418 | 551 | Riviere-du-Loup | Quebec | TELUS Mobility | PCS | More |
| 419 | 551 | BRYAN | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 423 | 551 | KNOXVILLE | Tennessee | CENTURYLINK COMMUNICATIONS, LLC | | More |
| 424 | 551 | CMTN GRDN | California | ONVOY, LLC - CA | | More |
| 425 | 551 | EVERETT | Washington | TELEPORT COMMUNICATIONS AMERICA, LLC - WA | CAP | More |
| 440 | 551 | PAINESVL | Ohio | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | CLEC | More |
| 443 | 551 | WOODLAWN | Maryland | LEVEL 3 COMMUNICATIONS, LLC - MD | CLEC | More |
| 450 | 551 | Sorel | Quebec | Videotron General Partnership | CLEC | More |
| 469 | 551 | BARDWELL | Texas | LEVEL 3 COMMUNICATIONS, LLC - TX | CLEC | More |
| 470 | 551 | ATLANTA NW | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | WIRELESS PROV | More |
| 478 | 551 | WARNERRBNS | Georgia | COMSOUTH TELENET, INC. - GA | | More |
| 479 | 551 | FORT SMITH | Arkansas | E. RITTER COMMS DBA RITTER COMMUNICATIONS, INC. AR | | More |
| 480 | 551 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 484 | 551 | LENAPE | Pennsylvania | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | CLEC | More |
| 501 | 551 | LITTLEROCK | Arkansas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 502 | 551 | LOUISVILLE | Kentucky | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 503 | 551 | SALEM | Oregon | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 504 | 551 | NEWORLEANS | Louisiana | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 505 | 551 | ALAMOGORDO | New Mexico | PEERLESS NETWORK OF NEW MEXICO, LLC - NM | | More |
| 506 | 551 | ST JOHN | New Brunswick | Miscellaneous Exchange Carrier | | More |
| 507 | 551 | ROCHESTER | Minnesota | MCC TELEPHONY OF MINNESOTA, LLC - MN | | More |
| 508 | 551 | WORCESTER | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 509 | 551 | KENNEWICK | Washington | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 510 | 551 | OKLD MN-PD | California | METROPCS, INC. | | More |
| 512 | 551 | AUSTIN | Texas | GLOBAL CROSSING LOCAL SERVICES, INC. - TX | CLEC | More |
| 513 | 551 | CINCINNATI | Ohio | CINCINNATI BELL | IND. TELCO | More |
| 514 | 551 | MONTREAL | Quebec | Rogers Communications Partnership (Cable) | CLEC | More |
| 515 | 551 | GRIMES | Iowa | ONVOY SPECTRUM, LLC | | More |
| 516 | 551 | NASSAUZN05 | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 517 | 551 | PIGEON | Michigan | METROPCS, INC. | | More |
| 518 | 551 | PERU | New York | BANDWIDTH.COM CLEC, LLC - NY | | More |
| 519 | 551 | WINDSOR | Ontario | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 520 | 551 | TUCSON | Arizona | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 530 | 551 | CHICO | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 531 | 551 | DUNBAR | Nebraska | ONVOY, LLC - NE | | More |
| 540 | 551 | FRONTROYAL | Virginia | CENTRAL TEL. CO. OF VIRGINIA DBA CENTURYLINK | IND. TELCO | More |
| 541 | 551 | BANDON | Oregon | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | | More |
| 559 | 551 | FRESNO | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 561 | 551 | WPALMBEACH | Florida | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 562 | 551 | PICORIVERA | California | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | CLEC | More |
| 563 | 551 | DAVENPORT | Iowa | WIDE VOICE, LLC - IA | | More |
| 570 | 551 | LEWISBURG | Pennsylvania | WINDSTREAM BUFFALO VALLEY, INC. | IND. TELCO | More |
| 571 | 551 | WSNGTNZN08 | Virginia | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 573 | 551 | KENNETT | Missouri | ONVOY, LLC - MO | | More |
| 574 | 551 | WARSAW | Indiana | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 575 | 551 | ALAMOGORDO | New Mexico | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 580 | 551 | ENID | Oklahoma | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 585 | 551 | ROCHESTER | New York | NUSO, LLC | | More |
| 586 | 551 | PONTIAC | Michigan | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | | More |
| 601 | 551 | MCCOMB | Mississippi | CELLULAR SOUTH, INC. | WIRELESS PROV | More |
| 602 | 551 | PHOENIX | Arizona | METROPCS, INC. | | More |
| 603 | 551 | MANCHESTER | New Hampshire | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH | RBOC | More |
| 604 | 551 | NEW WESTMINISTER | British Columbia | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 605 | 551 | HURON | South Dakota | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 606 | 551 | HAZARD | Kentucky | TV SERVICE, INC. - KY | | More |
| 608 | 551 | MADISON | Wisconsin | TON80 COMMUNICATIONS, LLC | | More |
| 609 | 551 | WILDWOOD | New Jersey | BANDWIDTH.COM CLEC, LLC - NJ | | More |
| 610 | 551 | PHPHSBZN30 | Pennsylvania | METROPCS, INC. | | More |
| 613 | 551 | CORNWALL | Ontario | TELUS Mobility | CAP | More |
| 614 | 551 | COLUMBUS | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 615 | 551 | SPENCERMIL | Tennessee | ONVOY, LLC - TN | | More |
| 616 | 551 | GRAND RPDS | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
| 617 | 551 | CAMBRIDGE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 618 | 551 | COLLINSVL | Illinois | PEERLESS NETWORK OF ILLINOIS, LLC - IL | | More |
| 619 | 551 | CHULAVISTA | California | METROPCS, INC. | | More |
| 620 | 551 | LEBO | Kansas | ONVOY, LLC - KS | | More |
| 623 | 551 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 626 | 551 | ALHAMBRA | California | GLOBAL CROSSING LOCAL SERVICES, INC. - CA | CLEC | More |
| 630 | 551 | OSWEGO | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 631 | 551 | NASSAU ZONES 2 3 5 | New York | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | CLEC | More |
| 636 | 551 | CEDAR HILL | Missouri | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | | More |
| 641 | 551 | NEW HAVEN | Iowa | FARMERS TEL. CO. | IND. TELCO | More |
| 646 | 551 | NWYRCYZN01 | New York | ONVOY SPECTRUM, LLC | | More |
| 650 | 551 | SAN CARLOS | California | PACIFIC BELL | RBOC | More |
| 651 | 551 | STILLWATER | Minnesota | COMMIO, LLC | | More |
| 657 | 551 | WESTMINSTR | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 661 | 551 | BAKERSFIELD | California | ONVOY, LLC - CA | | More |
| 662 | 551 | HOLLY SPRINGS | Mississippi | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 678 | 551 | ATLANTA NORTHEAST | Georgia | ONVOY, LLC - GA | | More |
| 682 | 551 | ARLINGTON | Texas | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 701 | 551 | LEHR | North Dakota | CONSOLIDATED COMMUNICATIONS ENTERPRISE SVCS-ND | CLEC | More |
| 702 | 551 | LAS VEGAS | Nevada | BANDWIDTH.COM CLEC, LLC - NV | | More |
| 703 | 551 | LORTON | Virginia | VERIZON SOUTH, INC. - VA (CONTEL) | IND. TELCO | More |
| 704 | 551 | CHARLOTTE | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 705 | 551 | Hanmer | Ontario | MTS Allstream Inc. | CLEC | More |
| 706 | 551 | WAYNESBORO | Georgia | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 707 | 551 | VALLEJO | California | PACIFIC BELL | RBOC | More |
| 708 | 551 | CHICAGO | Illinois | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 709 | 551 | ST JOHN S | Newfoundland | Aliant Telecom (NF) | IND. TELCO | More |
| 712 | 551 | HAWARDEN | Iowa | HAWARDEN MUNICIPAL UTILITIES | CLEC | More |
| 713 | 551 | HOUSTON PARKVIEW | Texas | SOUTHWESTERN BELL | RBOC | More |
| 714 | 551 | WESTMINSTR | California | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | | More |
| 715 | 551 | WAUSAU | Wisconsin | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 716 | 551 | BUFFALO | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 717 | 551 | HARISBGZN1 | Pennsylvania | BROADVIEW NETWORKS, INC. - PA | | More |
| 718 | 551 | NEW YORK CITY | New York | PAETEC COMMUNICATIONS, INC. - NY | CLEC | More |
| 719 | 551 | COLORDOSPG | Colorado | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 720 | 551 | DENVER | Colorado | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 724 | 551 | SHARON | Pennsylvania | US LEC OF PENNSYLVANIA, INC. | CLEC | More |
| 727 | 551 | SAINT PETERSBURG | Florida | FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA | IND. TELCO | More |
| 732 | 551 | TOMS RIVER | New Jersey | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 734 | 551 | DETROIT | Michigan | TELEPORT COMMUNICATIONS AMERICA, LLC - MI | | More |
| 740 | 551 | BARTLETT | Ohio | UNITED TEL. CO. OF OHIO DBA CENTURYLINK | IND. TELCO | More |
| 754 | 551 | FTLAUDERDL | Florida | METROPCS, INC. | | More |
| 757 | 551 | BELLEHAVEN | Virginia | ONVOY, LLC - VA | | More |
| 760 | 551 | RAMONA | California | NORTH COUNTY COMMUNICATION CORPORATION - CA | CLEC | More |
| 763 | 551 | MNPZ 9 | Minnesota | QWEST CORPORATION | RBOC | More |
| 765 | 551 | INDIANAPOLIS | Indiana | LEVEL 3 TELECOM OF INDIANA, LP - IN | CLEC | More |
| 770 | 551 | DUNWOODY | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 773 | 551 | CHICAGO | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 774 | 551 | GRAFTON | Massachusetts | CHOICE ONE COMMUNICATIONS, INC. - MA | CLEC | More |
| 775 | 551 | RENO | Nevada | COMMNET WIRELESS, LLC | | More |
| 778 | 551 | Aldergrove | British Columbia | Fido Solutions Inc. | | More |
| 780 | 551 | Smoky Lake | Alberta | Bell Mobility | WIRELESS PROV | More |
| 781 | 551 | NORWOOD | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 785 | 551 | LAWRENCE | Kansas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 786 | 551 | HOMESTEAD | Florida | XO FLORIDA, INC. | CLEC | More |
| 787 | 551 | MOCA | Puerto Rico | LIBERTY MOBILE PUERTO RICO INC. | CLEC | More |
| 801 | 551 | PROVO | Utah | QWEST CORPORATION | RBOC | More |
| 802 | 551 | EAST FAIRFIELD | Vermont | LEVEL 3 COMMUNICATIONS, LLC - VT | | More |
| 803 | 551 | COLUMBIA | South Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 804 | 551 | RICHMOND | Virginia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | WIRELESS PROV | More |
| 805 | 551 | SHERMAN OAKS | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 806 | 551 | LITTLEFLD | Texas | VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW | | More |
| 808 | 551 | HONOLULU (OAHU ISLA | Hawaii | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 812 | 551 | RISING SUN | Indiana | LEVEL 3 COMMUNICATIONS, LLC - IN | CLEC | More |
| 813 | 551 | TAMPAWST | Florida | BANDWIDTH.COM CLEC, LLC - FL | | More |
| 814 | 551 | CLEARFIELD | Pennsylvania | CORE COMMUNICATIONS, INC. - PA | | More |
| 815 | 551 | SAVANNA | Illinois | ONVOY, LLC | | More |
| 816 | 551 | KEARNEY | Missouri | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 817 | 551 | FORT WORTH EDGECLIF | Texas | SOUTHWESTERN BELL | RBOC | More |
| 818 | 551 | GLENDALE | California | PACIFIC BELL | RBOC | More |
| 819 | 551 | Arthabaska | Quebec | Videotron General Partnership | CLEC | More |
| 828 | 551 | ARDEN | North Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | WIRELESS PROV | More |
| 832 | 551 | APOLLO | Texas | LEVEL 3 COMMUNICATIONS, LLC - TX | CLEC | More |
| 843 | 551 | HEMINGWAY | South Carolina | FTC DIVERSIFIED SERVICES, INC. | CLEC | More |
| 845 | 551 | MIDDLETOWN | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 847 | 551 | DUNDEE | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 850 | 551 | TALLAHASSEE | Florida | PORTA-PHONE DIV OF JOHN H. PHIPPS DBA AM MESG SVC | WIRELESS PROV | More |
| 858 | 551 | LA JOLLA | California | PACIFIC BELL | RBOC | More |
| 859 | 551 | LEXINGTON | Kentucky | LEVEL 3 TELECOM OF KENTUCKY, LLC - KY | CLEC | More |
| 860 | 551 | XXXXXXXXXX | Connecticut | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | IND. TELCO | More |
| 863 | 551 | WINTER HAVEN | Florida | FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA | IND. TELCO | More |
| 864 | 551 | GREENVILLE | South Carolina | SUNCOM DBA T-MOBILE USA | PCS | More |
| 865 | 551 | KNOXVILLE | Tennessee | US LEC OF TENNESSEE, INC. | CLEC | More |
| 870 | 551 | PINE BLUFF | Arkansas | LEVEL 3 COMMUNICATIONS, LLC - AR | | More |
| 902 | 551 | HALIFAX | Nova Scotia | Aliant Telecom (NS) | IND. TELCO | More |
| 903 | 551 | DALLAS | Texas | LEVEL 3 COMMUNICATIONS, LLC - TX | CLEC | More |
| 904 | 551 | JACKSONVILLE | Florida | COMCAST IP PHONE, LLC | | More |
| 905 | 551 | BRAMPTON | Ontario | Rogers Communications Partnership (Cable) | | More |
| 907 | 551 | ELMENDORF AIR FORCE | Alaska | GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION | CLEC | More |
| 909 | 551 | TEMECULA | California | TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB | | More |
| 910 | 551 | FAYETTEVILLE | North Carolina | SUNCOM DBA T-MOBILE USA | PCS | More |
| 912 | 551 | THOMASVILLE | Georgia | MCC TELEPHONY OF GEORGIA, LLC - GA | | More |
| 913 | 551 | KANSAS CITY | Kansas | SOUTHWESTERN BELL | RBOC | More |
| 914 | 551 | WESTCHESTER ZONE 8 | New York | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 916 | 551 | SACRAMENTO | California | PACIFIC BELL | RBOC | More |
| 917 | 551 | NEW YORK CITY ZONE | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 918 | 551 | TULSA | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 919 | 551 | ZEBULON | North Carolina | AT&T - LOCAL | CLEC | More |
| 920 | 551 | FREMONT | Wisconsin | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | WIRELESS PROV | More |
| 925 | 551 | SAN RAMON | California | PACIFIC BELL | RBOC | More |
| 928 | 551 | SPRINGERVL | Arizona | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | WIRELESS PROV | More |
| 929 | 551 | NWYRCYZN07 | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 931 | 551 | CLARKSVILLE | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 937 | 551 | DAYTON | Ohio | LEVEL 3 COMMUNICATIONS, LLC - OH | CLEC | More |
| 940 | 551 | VERNON | Texas | ONVOY SPECTRUM, LLC | | More |
| 949 | 551 | IRVINE | California | PACIFIC BELL | RBOC | More |
| 951 | 551 | TEMECULA | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 954 | 551 | FORT LAUDERDALE | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 956 | 551 | MCALLEN | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 970 | 551 | MARVEL | Colorado | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 972 | 551 | TERRELL | Texas | SOUTHWESTERN BELL | RBOC | More |
| 973 | 551 | ROCKAWAY | New Jersey | YMAX COMMUNICATIONS CORP. - NJ | | More |
| 978 | 551 | LOWELL | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 979 | 551 | BRENHAM | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 985 | 551 | HAMMOND | Louisiana | AT&T CORP. | | More |
| 989 | 551 | PIGEON | Michigan | THUMB CELLULAR LP | WIRELESS PROV | More |
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