Area Code | Prefix | City/Switch Name (Click for city search) | State/Prov. Area Map | Telephone Company Web link | Telco Type | More Info |
|---|
| 201 | 578 | TEANECK | New Jersey | MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ | | More |
| 202 | 578 | WASHINGTON ZONE 1 | Virginia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC | WIRELESS PROV | More |
| 203 | 578 | WATERBURY | Connecticut | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | IND. TELCO | More |
| 204 | 578 | Brandon | Manitoba | MTS Inc. | IND. TELCO | More |
| 205 | 578 | BIRMINGHAM | Alabama | POWERTEL BIRMINGHAM LICENSES, INC. | WIRELESS PROV | More |
| 206 | 578 | DES MOINES | Washington | METROPCS, INC. | | More |
| 207 | 578 | FARMINGTON | Maine | BELL ATLANTIC MOBILE, INC | WIRELESS PROV | More |
| 208 | 578 | KETCHUM | Idaho | QWEST CORPORATION | RBOC | More |
| 209 | 578 | MODESTO | California | PACIFIC BELL | RBOC | More |
| 210 | 578 | SANANTONIO | Texas | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 212 | 578 | NWYRCYZN01 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 213 | 578 | MONTEBELLO | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 214 | 578 | MCKINNEY | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 215 | 578 | PHLDLPHZN2 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 216 | 578 | CLEVELAND | Ohio | OHIO BELL TEL CO | RBOC | More |
| 217 | 578 | ATWOOD | Illinois | ILLINOIS CONSOLIDATED TEL. CO. | IND. TELCO | More |
| 218 | 578 | DULUTH | Minnesota | IP HORIZON LLC | | More |
| 224 | 578 | PALATINE | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 225 | 578 | BATONROUGE | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 229 | 578 | COLQUITT | Georgia | TWILIO INTERNATIONAL, INC. | | More |
| 231 | 578 | MUSKEGON | Michigan | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | | More |
| 240 | 578 | FREDERICK | Maryland | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | WIRELESS PROV | More |
| 248 | 578 | NORTHVILLE | Michigan | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 250 | 578 | KAMLOOPS | British Columbia | TELUS | IND. TELCO | More |
| 251 | 578 | EVERGREEN | Alabama | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 252 | 578 | WELDON | North Carolina | UNITED STATES CELLULAR - NC | WIRELESS PROV | More |
| 254 | 578 | DAWSON | Texas | VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW | | More |
| 256 | 578 | RED BAY | Alabama | DELTACOM, INC. - AL | CLEC | More |
| 260 | 578 | NOMANCHETR | Indiana | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 262 | 578 | ELKHORN | Wisconsin | TON80 COMMUNICATIONS, LLC | | More |
| 267 | 578 | DUBLIN | Pennsylvania | CALLFIRE, INC. | | More |
| 269 | 578 | BATTLE CRK | Michigan | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | | More |
| 270 | 578 | KIRKSEY | Kentucky | MCC TELEPHONY OF THE SOUTH, LLC - KY | | More |
| 276 | 578 | WYTHEVILLE | Virginia | SHENTEL COMMUNICATIONS, LLC. - VA | CLEC | More |
| 281 | 578 | BARKER | Texas | SOUTHWESTERN BELL | RBOC | More |
| 289 | 578 | Stouffville | Ontario | Telnet Communications | | More |
| 301 | 578 | WSHNGTNZN3 | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 302 | 578 | GUMBORO | Delaware | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | CLEC | More |
| 303 | 578 | KEENESBURG | Colorado | LEVEL 3 COMMUNICATIONS, LLC - CO | CLEC | More |
| 304 | 578 | BECKLEY | West Virginia | UNITED STATES CELLULAR - WV | WIRELESS PROV | More |
| 305 | 578 | MIAMI | Florida | ABC PAGING CITY BEEPERS, INC. | WIRELESS PROV | More |
| 306 | 578 | Carrot River | Saskatchewan | TELUS Mobility | PCS | More |
| 307 | 578 | CODY | Wyoming | QWEST CORPORATION | RBOC | More |
| 308 | 578 | MINDEN | Nebraska | SPRINT SPECTRUM L.P. | PCS | More |
| 309 | 578 | MOSSVILLE | Illinois | FRONTIER NORTH, INC. - IL | IND. TELCO | More |
| 310 | 578 | SNMN MRVS | California | FRONTIER CALIFORNIA INC. | IND. TELCO | More |
| 312 | 578 | CHICGOZN01 | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 313 | 578 | DETROITZN1 | Michigan | MICHIGAN BELL TEL CO | RBOC | More |
| 314 | 578 | KIRKWOOD | Missouri | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 315 | 578 | MACOMB | New York | CITIZENS TEL. CO. OF HAMMOND NY, INC. | IND. TELCO | More |
| 317 | 578 | FISHERS | Indiana | INDIANA BELL TEL CO INC | RBOC | More |
| 318 | 578 | SPRINGHILL | Louisiana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA | WIRELESS PROV | More |
| 319 | 578 | SWISHER | Iowa | MCC TELEPHONY OF IOWA, LLC - IA | | More |
| 321 | 578 | SANFORD | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 323 | 578 | LSAN DA 14 | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 330 | 578 | ROOTSTOWN | Ohio | WINDSTREAM NUVOX OHIO, LLC | | More |
| 334 | 578 | EVERGREEN | Alabama | YMAX COMMUNICATIONS CORP. - AL | | More |
| 336 | 578 | BURLINGTON | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 337 | 578 | BALDWIN | Louisiana | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 346 | 578 | LANGHAMCRK | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 347 | 578 | NWYRCYZN07 | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 352 | 578 | CROSS CITY | Florida | POWERTEL JACKSONVILLE LICENSES, INC. | WIRELESS PROV | More |
| 360 | 578 | LONGVIEW | Washington | QWEST CORPORATION | RBOC | More |
| 361 | 578 | VICTORIA | Texas | SOUTHWESTERN BELL | RBOC | More |
| 385 | 578 | SALT LAKE | Utah | ONVOY, LLC - UT | | More |
| 401 | 578 | PROVIDENCE | Rhode Island | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | WIRELESS PROV | More |
| 402 | 578 | OMAHA | Nebraska | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 403 | 578 | CORONATION | Alberta | TELUS | IND. TELCO | More |
| 404 | 578 | ATLANTA | Georgia | POWERTEL ATLANTA LICENSES, INC. | WIRELESS PROV | More |
| 405 | 578 | YUKON | Oklahoma | DOBSON TECHNOLOGIES-TRANSPORT & TELECOM SOL - OK | | More |
| 406 | 578 | WILSALL | Montana | QWEST CORPORATION | RBOC | More |
| 407 | 578 | ORLANDO | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 408 | 578 | SNJS SOUTH | California | PACIFIC BELL | RBOC | More |
| 409 | 578 | FAIRMOUNT | Texas | AWESOME PAGING, INC. | WIRELESS PROV | More |
| 410 | 578 | BALTIMORE | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 412 | 578 | PTTSBGZON1 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 413 | 578 | PALMER | Massachusetts | AMERICAN MESSAGING SERVICES, LLC | | More |
| 414 | 578 | MILWAUKZN1 | Wisconsin | WISCONSIN BELL INC | RBOC | More |
| 415 | 578 | SAN RAFAEL | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 416 | 578 | TORONTO | Ontario | Bell Mobility | WIRELESS PROV | More |
| 417 | 578 | JOPLIN | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 418 | 578 | Forestville | Quebec | TELUS Quebec | IND. TELCO | More |
| 419 | 578 | TOLEDO | Ohio | OHIO BELL TEL CO | RBOC | More |
| 423 | 578 | KINGSPORT | Tennessee | UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN | IND. TELCO | More |
| 425 | 578 | MAPLE VLY | Washington | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 435 | 578 | TOOELE | Utah | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 440 | 578 | MENTOR | Ohio | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | CLEC | More |
| 443 | 578 | COCKEYSVL | Maryland | XO MARYLAND, LLC | CLEC | More |
| 450 | 578 | GRANBY | Quebec | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 469 | 578 | FORNEY | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 470 | 578 | ATLANTA NE | Georgia | WINDSTREAM NUVOX, INC. | CLEC | More |
| 478 | 578 | DUBLIN | Georgia | ONVOY, LLC - GA | | More |
| 480 | 578 | PHOENIX | Arizona | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | WIRELESS PROV | More |
| 484 | 578 | FLEETWOOD | Pennsylvania | ATX TELECOMMUNICATIONS SERVICES, LTD. - PA | CLEC | More |
| 501 | 578 | BRYANT COLLEGEVILLE | Arkansas | SPRINT COMMUNICATIONS COMPANY, L.P. - AR | CLEC | More |
| 503 | 578 | BEAVERTON | Oregon | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | IND. TELCO | More |
| 504 | 578 | NEWORLEANS | Louisiana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA | WIRELESS PROV | More |
| 505 | 578 | ROSWELL | New Mexico | TELEPORT COMMUNICATIONS AMERICA NM-LLC | | More |
| 507 | 578 | BUTTERFLD | Minnesota | MCC TELEPHONY OF MINNESOTA, LLC - MN | | More |
| 508 | 578 | DOVER | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 509 | 578 | RICHLAND | Washington | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | CLEC | More |
| 510 | 578 | FRNK MAIN | California | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 512 | 578 | AUSTIN | Texas | SOUTHWESTERN BELL | RBOC | More |
| 513 | 578 | MARYSVILLE | Ohio | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 514 | 578 | MONTREAL | Quebec | Fido Solutions Inc. | | More |
| 515 | 578 | LAKOTA | Iowa | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | WIRELESS PROV | More |
| 516 | 578 | NASSAUZN05 | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 517 | 578 | BAY CITY | Michigan | CENTURY CELLUNET-MI | | More |
| 518 | 578 | PLATTSBG | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 519 | 578 | KITCHENER | Ontario | Bell Canada | IND. TELCO | More |
| 520 | 578 | TUCSON | Arizona | QWEST CORPORATION | RBOC | More |
| 530 | 578 | SOUTHTAHOE | California | AT&T CORP. | | More |
| 540 | 578 | HARRISONBG | Virginia | METROPCS, INC. | | More |
| 541 | 578 | MOSIER | Oregon | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 559 | 578 | CLOVIS | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 561 | 578 | WPALMBEACH | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 562 | 578 | LONG BEACH | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 563 | 578 | SUMNER | Iowa | WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS | | More |
| 570 | 578 | HAZLETON | Pennsylvania | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | WIRELESS PROV | More |
| 571 | 578 | LEESBURG | Virginia | METROPCS, INC. | | More |
| 573 | 578 | ROLLA | Missouri | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 575 | 578 | ROSWELL | New Mexico | LEVEL 3 COMMUNICATIONS, LLC - NM | | More |
| 579 | 578 | St-Vincent-de-Paul | Quebec | Fibernetics Corporation | | More |
| 585 | 578 | CASTILE | New York | COMMIO, LLC | | More |
| 586 | 578 | CENTERLINE | Michigan | MICHIGAN BELL TEL CO | RBOC | More |
| 601 | 578 | LAUREL | Mississippi | TEC OF JACKSON, INC. - MS | | More |
| 602 | 578 | PHOENIX | Arizona | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 603 | 578 | NASHUA | New Hampshire | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH | RBOC | More |
| 604 | 578 | Powell River | British Columbia | Bell Mobility | WIRELESS PROV | More |
| 605 | 578 | DEADWOOD | South Dakota | QWEST CORPORATION | RBOC | More |
| 606 | 578 | JENKINS | Kentucky | WINDSTREAM KENTUCKY EAST, INC. - LONDON | | More |
| 608 | 578 | MADISON | Wisconsin | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 609 | 578 | CRANBURY | New Jersey | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | WIRELESS PROV | More |
| 610 | 578 | PHPHSBZN28 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 612 | 578 | TWINCITIES | Minnesota | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 613 | 578 | Constance Bay | Ontario | Rogers Communications Partnership (Cable) | | More |
| 614 | 578 | COLUMBUS | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 615 | 578 | NASHVILLE | Tennessee | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 616 | 578 | BATTLE CREEK | Michigan | LUCRE, INC. | CLEC | More |
| 617 | 578 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 618 | 578 | COLLINSVL | Missouri | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 619 | 578 | SNDG SNDG | California | PACIFIC BELL | RBOC | More |
| 620 | 578 | MONTEZUMA | Kansas | IDEATEK TELCOM, LLC - KS | | More |
| 626 | 578 | PSDN PSDN | California | PACIFIC BELL | RBOC | More |
| 630 | 578 | GENEVA | Illinois | LEVEL 3 COMMUNICATIONS, LLC - IL | CLEC | More |
| 631 | 578 | YAPHANK | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 636 | 578 | ST LOUIS | Missouri | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 646 | 578 | NWYRCYZN03 | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 650 | 578 | SAN MATEO | California | PACIFIC BELL | RBOC | More |
| 651 | 578 | STPZ 5 | Minnesota | QWEST CORPORATION | RBOC | More |
| 657 | 578 | ANAHEIM | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 661 | 578 | SANTA CLARITA: NEWH | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 662 | 578 | BATESVILLE | Mississippi | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 678 | 578 | ATLANTA | Georgia | US LEC OF GEORGIA, INC. | CLEC | More |
| 681 | 578 | ARNOLDSBG | West Virginia | CENTURYLINK COMMUNICATIONS, LLC | | More |
| 701 | 578 | MINOT | North Dakota | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND | WIRELESS PROV | More |
| 702 | 578 | LAS VEGAS | Nevada | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 703 | 578 | WASZ 8 | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 704 | 578 | CHARLOTTE | North Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | WIRELESS PROV | More |
| 705 | 578 | Elliot Lake | Ontario | Bragg Communications Inc. | CLEC | More |
| 706 | 578 | SUMMERVL | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | WIRELESS PROV | More |
| 707 | 578 | SANTA ROSA | California | PACIFIC BELL | RBOC | More |
| 708 | 578 | OAK FOR SO | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 712 | 578 | HULL | Iowa | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 713 | 578 | HOUSTON MEDICAL CEN | Texas | SOUTHWESTERN BELL | RBOC | More |
| 714 | 578 | FULLERTON | California | PACIFIC BELL | RBOC | More |
| 715 | 578 | EAU CLAIRE | Wisconsin | TELEPORT COMMUNICATIONS AMERICA, LLC WI | CAP | More |
| 716 | 578 | BUFFALO | New York | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 717 | 578 | YORK | Pennsylvania | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 718 | 578 | NEW YORK CITY ZONE | New York | LEVEL 3 COMMUNICATIONS, LLC - NY | CLEC | More |
| 719 | 578 | COLORADO SPRINGS | Colorado | QWEST CORPORATION | RBOC | More |
| 720 | 578 | DENVER | Colorado | QWEST CORPORATION | RBOC | More |
| 724 | 578 | JEANNETTE | Pennsylvania | LEVEL 3 COMMUNICATIONS, LLC - PA | CLEC | More |
| 727 | 578 | SAINT PETERSBURG | Florida | FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA | IND. TELCO | More |
| 732 | 578 | EATONTOWN | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 734 | 578 | PONTIAC | Michigan | WOW! INTERNET, CABLE AND PHONE | | More |
| 740 | 578 | GALLIPOLIS | Ohio | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 757 | 578 | NFKZ 2 | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 760 | 578 | PALM DESERT | California | METROPCS NETWORKS, LLC | | More |
| 762 | 578 | CALHOUN | Georgia | CORETEL GEORGIA, INC. - GA | | More |
| 765 | 578 | REDKEY | Indiana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN | WIRELESS PROV | More |
| 770 | 578 | MARIETTA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 773 | 578 | CHICAGO | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 774 | 578 | WORCESTER | Massachusetts | METROPCS, INC. | | More |
| 775 | 578 | PARADISE VALLEY | Nevada | HUMBOLDT TELEPHONE COMPANY | IND. TELCO | More |
| 778 | 578 | Newton | British Columbia | TELUS | IND. TELCO | More |
| 780 | 578 | Gibbons | Alberta | Shaw Telecom Inc. | | More |
| 781 | 578 | BRYANTVILLE | Massachusetts | NORFOLK COUNTY INTERNET, INC. | CLEC | More |
| 785 | 578 | ONAGA | Kansas | TELEPORT COMMUNICATIONS AMERICA, LLC - KS | CLEC | More |
| 786 | 578 | MIAMI | Florida | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 787 | 578 | BAYAMON NORTE | Puerto Rico | BORINQUEN BEEPERS, INC. | WIRELESS PROV | More |
| 801 | 578 | SALT LAKE CITY | Utah | QWEST CORPORATION | RBOC | More |
| 802 | 578 | BURLINGTON | Vermont | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VT | WIRELESS PROV | More |
| 803 | 578 | FORT MILL | South Carolina | FORT MILL TEL. CO. | IND. TELCO | More |
| 804 | 578 | MANAKIN | Virginia | CAVALIER TELEPHONE, LLC - VA | CLEC | More |
| 805 | 578 | SIMI VALLEY | California | PACIFIC BELL | RBOC | More |
| 806 | 578 | MILO CENTER | Texas | WEST TEXAS RURAL TEL. COOP., INC. | IND. TELCO | More |
| 808 | 578 | KAKAAKO | Hawaii | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 812 | 578 | BLOOMINGTON | Indiana | WINDSTREAM NORLIGHT, INC. - IN | CLEC | More |
| 813 | 578 | PLANT CITY | Florida | AT&T - LOCAL | CLEC | More |
| 814 | 578 | ALTOONA | Pennsylvania | CORE COMMUNICATIONS, INC. - PA | | More |
| 815 | 578 | MCHENRY | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 816 | 578 | LAKE LOTAWANA | Missouri | EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO | IND. TELCO | More |
| 817 | 578 | GRANBURY | Texas | SOUTHWESTERN BELL | RBOC | More |
| 818 | 578 | RESEDA | California | TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB | | More |
| 819 | 578 | SHERBROOKE | Quebec | Bell Mobility | WIRELESS PROV | More |
| 828 | 578 | BLACK MT | North Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | WIRELESS PROV | More |
| 830 | 578 | CAMPBELLTON | Texas | AWESOME PAGING, INC. | WIRELESS PROV | More |
| 831 | 578 | SALINAS | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 832 | 578 | HOUSTON | Texas | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 843 | 578 | BLENHEIM | South Carolina | DELTACOM, INC. - SC | CLEC | More |
| 845 | 578 | SPRING VALLEY | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 847 | 578 | WAUKEGAN | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 850 | 578 | PERRY | Florida | CONSOLIDATED COMMUNICATIONS OF FLORIDA COMPANY | IND. TELCO | More |
| 856 | 578 | CAMDEN | New Jersey | COMMIO, LLC | | More |
| 857 | 578 | NEWTON | Massachusetts | TWILIO INTERNATIONAL, INC. | | More |
| 858 | 578 | SAN DIEGO | California | PACIFIC BELL | RBOC | More |
| 859 | 578 | LAKESIDE PARK | Kentucky | CINCINNATI BELL | IND. TELCO | More |
| 860 | 578 | HARTFORD | Connecticut | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | WIRELESS PROV | More |
| 863 | 578 | TAMPA | Florida | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | CLEC | More |
| 864 | 578 | SPARTANBURG | South Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 870 | 578 | HARRISBURG | Arkansas | SOUTHWESTERN BELL | RBOC | More |
| 901 | 578 | MEMPHIS | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 902 | 578 | SYDNEY | Nova Scotia | Aliant Telecom (Mobility) | | More |
| 903 | 578 | MARSHALL | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 904 | 578 | ST AUGUSTINE | Florida | ONVOY, LLC - FL | | More |
| 905 | 578 | HAMILTON | Ontario | Bell Canada | IND. TELCO | More |
| 908 | 578 | CRANFORD | New Jersey | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | WIRELESS PROV | More |
| 909 | 578 | FONTANA | California | METROPCS NETWORKS, LLC | | More |
| 910 | 578 | FAYETTEVILLE | North Carolina | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 912 | 578 | OAK PARK | Georgia | PINELAND TEL. COOP., INC. | IND. TELCO | More |
| 913 | 578 | LEAVENWORTH | Kansas | SOUTHWESTERN BELL | RBOC | More |
| 914 | 578 | SPRING VALLEY | New York | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 915 | 578 | EL PASO EAST | Texas | AMERICAN MESSAGING SERVICES, LLC | | More |
| 916 | 578 | SCRM MAIN | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 917 | 578 | NEW YORK CITY ZONE | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 918 | 578 | SKIATOOK | Oklahoma | LEVEL 3 COMMUNICATIONS, LLC - OK | | More |
| 919 | 578 | RALEIGH | North Carolina | METROPCS, INC. | | More |
| 920 | 578 | RIPON | Wisconsin | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 925 | 578 | ECONTRCOST | California | TON80 COMMUNICATIONS, LLC | | More |
| 929 | 578 | NWYRCYZN14 | New York | BANDWIDTH.COM CLEC, LLC - NY | | More |
| 937 | 578 | MARYSVILLE | Ohio | UNITED TEL. CO. OF OHIO DBA CENTURYLINK | IND. TELCO | More |
| 940 | 578 | THROCKMOTN | Texas | AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX | | More |
| 949 | 578 | SADLBK VLY | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 951 | 578 | ARLINGTON | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 954 | 578 | FORT LAUDERDALE | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 956 | 578 | MCALLEN | Texas | SOUTHWESTERN BELL | RBOC | More |
| 970 | 578 | STERLING | Colorado | PAETEC ITEL, LLC | | More |
| 972 | 578 | PLANO | Texas | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | IND. TELCO | More |
| 973 | 578 | NEWARK | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 978 | 578 | ACTON | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 979 | 578 | EL CAMPO | Texas | SOUTHWESTERN BELL | RBOC | More |
| 989 | 578 | BAY CITY | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
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