Area
Code | Prefix | City/Switch Name
(Click for city search) | State/Prov.
Area Map | Telephone Company
Web link | Telco
Type | More
Info |
|---|
| 201 | 378 | RAMSEY | New Jersey | LEVEL 3 COMMUNICATIONS, LLC - NJ | CLEC | More |
| 202 | 378 | WSHNGTNZN1 | District of Columbia | TELEPORT COMMUNICATIONS AMERICA, LLC - DC | CLEC | More |
| 203 | 378 | BRIDGEPORT | Connecticut | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | IND. TELCO | More |
| 204 | 378 | RIVERTON | Manitoba | MTS Inc. | IND. TELCO | More |
| 205 | 378 | ALABASTER | Alabama | US LEC OF ALABAMA, INC. | CLEC | More |
| 206 | 378 | SEATTLE | Washington | QWEST CORPORATION | RBOC | More |
| 207 | 378 | PORTLAND | Maine | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 208 | 378 | BOISE | Idaho | QWEST CORPORATION | RBOC | More |
| 209 | 378 | HORNITOS | California | HORNITOS TEL. CO. | IND. TELCO | More |
| 210 | 378 | SANANTONIO | Texas | METROPCS, INC. | | More |
| 212 | 378 | NWYRCYZN01 | New York | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | CLEC | More |
| 213 | 378 | LSAN DA 10 | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 214 | 378 | DALLAS | Texas | SOUTHWESTERN BELL | RBOC | More |
| 215 | 378 | PHPHSBZN43 | Pennsylvania | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | WIRELESS PROV | More |
| 216 | 378 | TERRACE | Ohio | OHIO BELL TEL CO | RBOC | More |
| 217 | 378 | CHAMPAURBN | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 218 | 378 | GOODRIDGE | Minnesota | GARDEN VALLEY TEL. CO. | IND. TELCO | More |
| 219 | 378 | E CHICAGO | Indiana | INDIANA BELL TEL CO INC | RBOC | More |
| 224 | 378 | LIBERTYVL | Illinois | ONVOY, LLC | | More |
| 225 | 378 | BATONROUGE | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 226 | 378 | London | Ontario | Bell Mobility | WIRELESS PROV | More |
| 228 | 378 | GULFPORT | Mississippi | ADVANCED TEL., INC. - LA | CLEC | More |
| 229 | 378 | CAIRO | Georgia | WINDSTREAM GEORGIA, INC. | IND. TELCO | More |
| 231 | 378 | COPESHTNVL | Michigan | ACE TEL. CO. OF MICHIGAN, INC. | IND. TELCO | More |
| 234 | 378 | CANTON | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 239 | 378 | NAPLES | Florida | METROPCS, INC. | | More |
| 240 | 378 | CUMBERLAND | Maryland | CORE COMMUNICATIONS, INC.- MD | CLEC | More |
| 248 | 378 | NORTHVILLE | Michigan | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | | More |
| 250 | 378 | MERRITT | British Columbia | TELUS | IND. TELCO | More |
| 251 | 378 | MOBILE | Alabama | NEWSOUTH COMMUNICATIONS, INC. DBA UNIVERSALCOM FL | CLEC | More |
| 252 | 378 | GREENVILLE | North Carolina | SUNCOM DBA T-MOBILE USA | PCS | More |
| 253 | 378 | AUBURN | Washington | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 254 | 378 | WACO | Texas | GLOBALSTAR USA, INC. | | More |
| 256 | 378 | CHILDERSBG | Alabama | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 262 | 378 | MUKWONAGO | Wisconsin | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 267 | 378 | QUAKERTOWN | Delaware | CAVALIER TELEPHONE LLC (MID-ATLANTIC) - PA | CLEC | More |
| 269 | 378 | HASTINGS | Michigan | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | | More |
| 270 | 378 | FAIRPLAY | Kentucky | DUO COUNTY TEL. COOP., INC. | IND. TELCO | More |
| 272 | 378 | SHENANDOAH | Pennsylvania | IP HORIZON LLC | | More |
| 276 | 378 | MARION | Virginia | COMCAST IP PHONE, LLC | | More |
| 281 | 378 | TOMBALL | Texas | SOUTHWESTERN BELL | RBOC | More |
| 289 | 378 | Markham | Ontario | Fibernetics Corporation | | More |
| 301 | 378 | FREDERICK | District of Columbia | COMCAST IP PHONE, LLC | | More |
| 302 | 378 | MIDDLETOWN | Delaware | VERIZON DELAWARE, INC. | RBOC | More |
| 303 | 378 | DENVER | Colorado | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 304 | 378 | MARTINSBG | Maryland | COMCAST IP PHONE, LLC | | More |
| 305 | 378 | PERRINE | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 306 | 378 | ELROSE | Saskatchewan | SaskTel | IND. TELCO | More |
| 307 | 378 | ROCK RIVER | Wyoming | UNION TEL. CO. | IND. TELCO | More |
| 308 | 378 | GRAND IS | Nebraska | ONVOY SPECTRUM, LLC | | More |
| 309 | 378 | DOWNS | Illinois | FRONTIER NORTH, INC. - IL | IND. TELCO | More |
| 310 | 378 | REDONDO | California | FRONTIER CALIFORNIA INC. | IND. TELCO | More |
| 312 | 378 | CHICGOZN01 | Illinois | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 313 | 378 | DETROITZN5 | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
| 314 | 378 | LADUE | Missouri | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 315 | 378 | SYRACUSE | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 317 | 378 | NOBLESVILLE | Indiana | WINDSTREAM NORLIGHT, INC. - IN | CLEC | More |
| 318 | 378 | BELCHER | Louisiana | CENTURYLINK OF LOUISIANA, LLC | IND. TELCO | More |
| 319 | 378 | CEDAR RPDS | Iowa | QWEST CORPORATION | RBOC | More |
| 320 | 378 | HERMAN | Minnesota | ONVOY, LLC - MN | | More |
| 321 | 378 | MELBOURNE | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 323 | 378 | LSAN DA 14 | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 325 | 378 | STERLINGCY | Texas | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | IND. TELCO | More |
| 330 | 378 | NASHVILLE | Ohio | UNITED TEL. CO. OF OHIO DBA CENTURYLINK | IND. TELCO | More |
| 332 | 378 | NWYRCYZN01 | New York | TON80 COMMUNICATIONS, LLC | | More |
| 334 | 378 | KINSTON | Alabama | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | WIRELESS PROV | More |
| 336 | 378 | GREENSBORO | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 337 | 378 | LEESVILLE | Louisiana | LEVEL 3 COMMUNICATIONS, LLC - LA | | More |
| 346 | 378 | HSTNSUBURB | Texas | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | CAP | More |
| 347 | 378 | NWYRCYZN06 | New York | LEVEL 3 COMMUNICATIONS, LLC - NY | CLEC | More |
| 352 | 378 | GAINESVL | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 360 | 378 | SAN JUAN | Washington | CENTURYTEL OF INTER-ISLAND, INC. DBA CENTURYLINK | IND. TELCO | More |
| 361 | 378 | ARANSSPASS | Texas | COMMIO, LLC | | More |
| 385 | 378 | PROVO | Utah | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 386 | 378 | DELAND | Florida | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | WIRELESS PROV | More |
| 401 | 378 | PROVIDENCE | Rhode Island | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | WIRELESS PROV | More |
| 402 | 378 | | Nebraska | CENTURYLINK COMMUNICATIONS, LLC | | More |
| 403 | 378 | DUCHESS | Alberta | TELUS | IND. TELCO | More |
| 404 | 378 | ATLANTA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 405 | 378 | MOORE | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 406 | 378 | BIG SANDY | Montana | TRIANGLE TEL. COOP. ASSN., INC. | IND. TELCO | More |
| 407 | 378 | WINTERGRDN | Florida | LEVEL 3 COMMUNICATIONS, LLC - FL | CLEC | More |
| 408 | 378 | CAMPBELL | California | PACIFIC BELL | RBOC | More |
| 409 | 378 | NEWTON | Texas | AWESOME PAGING, INC. | WIRELESS PROV | More |
| 410 | 378 | PT DEPOSIT | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 412 | 378 | PTGSBNZN22 | Pennsylvania | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 413 | 378 | CHICOPEE | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 414 | 378 | MILWAUKZN1 | Wisconsin | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 415 | 378 | SNFC CNTRL | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 416 | 378 | TORONTO | Ontario | Bell Canada | IND. TELCO | More |
| 417 | 378 | GALENA | Missouri | ONVOY SPECTRUM, LLC | | More |
| 418 | 378 | Baie-Comeau (Hauter | Quebec | Bell Mobility | WIRELESS PROV | More |
| 419 | 378 | BOWLNGGREN | Ohio | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | | More |
| 423 | 378 | KINGSPORT | Tennessee | UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN | IND. TELCO | More |
| 424 | 378 | LOMITA | California | ONVOY, LLC - CA | | More |
| 425 | 378 | BELLEVUE | Washington | QWEST CORPORATION | RBOC | More |
| 434 | 378 | EMPORIA | Virginia | METROPCS, INC. | | More |
| 440 | 378 | STRONGSVL | Ohio | LEVEL 3 COMMUNICATIONS, LLC - OH | CLEC | More |
| 442 | 378 | FALLBROOK | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 443 | 378 | BALTIMORE | Maryland | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | WIRELESS PROV | More |
| 450 | 378 | GRANBY | Quebec | Bell Canada | IND. TELCO | More |
| 469 | 378 | PRINCETON | Texas | BANDWIDTH.COM CLEC, LLC - TX | | More |
| 470 | 378 | ATLANTA | Georgia | LEVEL 3 COMMUNICATIONS, LLC - GA | CLEC | More |
| 478 | 378 | WADLEY | Georgia | ONVOY, LLC - GA | | More |
| 479 | 378 | GARFIELD | Arkansas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 480 | 378 | PHOENIX | Arizona | LEVEL 3 TELECOM OF ARIZONA, LLC - AZ | CLEC | More |
| 484 | 378 | PHILADELPHIA SUBURB | Pennsylvania | BLOCK LINE SYSTEMS, LLC - PA | | More |
| 501 | 378 | LITTLEROCK | Arkansas | SOUTHWESTERN BELL | RBOC | More |
| 502 | 378 | ROSETRRACE | Kentucky | TIME WARNER CBL INFO SV (KY) DBA TIME WARNER-KY | | More |
| 503 | 378 | SALEM | Oregon | QWEST CORPORATION | RBOC | More |
| 504 | 378 | NEWORLEANS | Louisiana | WINDSTREAM NUVOX, INC. | CLEC | More |
| 505 | 378 | RUIDOSODWN | New Mexico | ONVOY SPECTRUM, LLC | | More |
| 506 | 378 | Moncton | New Brunswick | Aliant Telecom (Mobility) | | More |
| 507 | 378 | RACINE | Minnesota | HOME TEL. CO. | IND. TELCO | More |
| 508 | 378 | EBRIDGEWTR | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 509 | 378 | KENNEWICK | Washington | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | | More |
| 510 | 378 | FRNK MAIN | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 512 | 378 | AUSTIN | Texas | SOUTHWESTERN BELL | RBOC | More |
| 513 | 378 | CINCINNATI | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 514 | 378 | Montreal | Quebec | Bell Mobility | WIRELESS PROV | More |
| 515 | 378 | THOR | Iowa | WEBSTER-CALHOUN COOP. TEL. ASSN. | IND. TELCO | More |
| 516 | 378 | NASSAUZN06 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 517 | 378 | SAGINAW | Michigan | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 518 | 378 | ALBANY | New York | METROPCS, INC. | | More |
| 519 | 378 | OWEN SOUND | Ontario | Bell Canada | IND. TELCO | More |
| 520 | 378 | SIERRAVIST | Arizona | QWEST CORPORATION | RBOC | More |
| 530 | 378 | ANDERSON | California | PACIFIC BELL | RBOC | More |
| 540 | 378 | SALEM | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 541 | 378 | ROSEBURG | Oregon | TELEPORT COMMUNICATIONS AMERICA, LLC - OR | CLEC | More |
| 551 | 378 | CLIFFSIDE | New Jersey | OMNIPOINT COMMUNICATIONS, INC. - NJ | WIRELESS PROV | More |
| 559 | 378 | FRESNO | California | BANDWIDTH.COM CLEC, LLC - CA | | More |
| 561 | 378 | BOCA RATON | Florida | AMERICAN MESSAGING SERVICES, LLC | WIRELESS PROV | More |
| 562 | 378 | WHITTIER | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 567 | 378 | CHESTERVL | Ohio | DISH WIRELESS, LLC | | More |
| 570 | 378 | LAKEWINOLA | Pennsylvania | COMMONWEALTH TELEPHONE COMPANY LLC | IND. TELCO | More |
| 571 | 378 | WSNGTNZN17 | Virginia | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | WIRELESS PROV | More |
| 573 | 378 | VERSAILLES | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 574 | 378 | SOUTH BEND | Indiana | IP HORIZON LLC | | More |
| 575 | 378 | RUIDOSODWN | New Mexico | VALOR TELECOM TX,LP-NM #2 DBA WINDSTREAM COMM SW | | More |
| 580 | 378 | ATOKA | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 581 | 378 | Saint-Georges-de-Be | Quebec | TELUS Quebec | IND. TELCO | More |
| 585 | 378 | OLEAN | New York | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 601 | 378 | LUCEDALE | Mississippi | DIXIE NET COMMUNICATIONS, LLC | CLEC | More |
| 602 | 378 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 603 | 378 | PLAISTOW | New Hampshire | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH | RBOC | More |
| 604 | 378 | Chilliwack | British Columbia | Bell Mobility | WIRELESS PROV | More |
| 605 | 378 | NOVALENTIN | Nebraska | QWEST CORPORATION | RBOC | More |
| 606 | 378 | DWARF | Kentucky | LESLIE COUNTY TEL. CO. | IND. TELCO | More |
| 607 | 378 | ELMIRA | New York | TC SYSTEMS, INC. - NY | CAP | More |
| 608 | 378 | WARRENS | Wisconsin | CENTURYTEL MIDWEST-WI LLC NW DBA CENTURYLINK - NW | IND. TELCO | More |
| 609 | 378 | PLAINSBORO | New Jersey | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | CLEC | More |
| 610 | 378 | READING | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 612 | 378 | TWINCITIES | Minnesota | QWEST CORPORATION | RBOC | More |
| 613 | 378 | NEWBURGH | Ontario | Bell Canada | IND. TELCO | More |
| 614 | 378 | COLUMBUS | Ohio | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 615 | 378 | LEBANON | Tennessee | GLOBAL CROSSING LOCAL SERVICES, INC. - TN | | More |
| 616 | 378 | JAMESTOWN | Michigan | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 617 | 378 | BOSTON | Massachusetts | TC SYSTEMS, INC. | CAP | More |
| 618 | 378 | NORRISCITY | Illinois | FRONTIER NORTH, INC. - IL | IND. TELCO | More |
| 619 | 378 | CAMPO | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 620 | 378 | FREDONIA | Kansas | UNITED TEL. CO. OF KANSAS DBA CENTURYLINK | IND. TELCO | More |
| 626 | 378 | EL MONTE | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 630 | 378 | LEMONT | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 631 | 378 | NEW YORK | New York | LEVEL 3 COMMUNICATIONS, LLC - NY | CLEC | More |
| 636 | 378 | ST PETERS | Missouri | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 646 | 378 | NWYRCYZN02 | New York | XCHANGE TELECOM CORP. - NY | | More |
| 647 | 378 | Toronto | Ontario | Bell Mobility | WIRELESS PROV | More |
| 650 | 378 | SAN MATEO | California | PACIFIC BELL | RBOC | More |
| 651 | 378 | TWINCITIES | Minnesota | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 657 | 378 | FULLERTON | California | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | | More |
| 660 | 378 | DALTON | Missouri | TERRA NOVA TELECOM INC. | | More |
| 661 | 378 | BKFD MAIN | California | ONVOY, LLC - CA | | More |
| 662 | 378 | GREENVILLE | Mississippi | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 667 | 378 | ESSEX | Maryland | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | WIRELESS PROV | More |
| 678 | 378 | NEWNAN | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | WIRELESS PROV | More |
| 681 | 378 | HNTNGTNZN1 | West Virginia | COMCAST IP PHONE, LLC | | More |
| 682 | 378 | CLEBURNE | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 701 | 378 | LEHR | North Dakota | BEK COMMUNICATIONS COOPERATIVE | IND. TELCO | More |
| 702 | 378 | LAS VEGAS | Nevada | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV | WIRELESS PROV | More |
| 703 | 378 | BRADDOCK | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 704 | 378 | CHARLOTTE | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 705 | 378 | OTTER LAKE | Ontario | Bell Canada | IND. TELCO | More |
| 706 | 378 | ROME | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 707 | 378 | RIO VISTA | California | CITIZENS TELECOM CA. DBA FRONTIER COM OF CA | IND. TELCO | More |
| 708 | 378 | LA GRANGE | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 712 | 378 | KINGSLEY | Iowa | FRONTIER COMMUNICATIONS OF IOWA, INC. | IND. TELCO | More |
| 713 | 378 | HOUSTON HUDSON | Texas | SOUTHWESTERN BELL | RBOC | More |
| 714 | 378 | HUNTINGTON BEACH | California | FRONTIER CALIFORNIA INC. | IND. TELCO | More |
| 715 | 378 | SOLON SPRINGS | Wisconsin | CENTURYTEL NW WISCONSIN LLC DBA CENTURYLINK | IND. TELCO | More |
| 716 | 378 | OLEAN | New York | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 717 | 378 | RED LION | Pennsylvania | LEVEL 3 COMMUNICATIONS, LLC - PA | CLEC | More |
| 718 | 378 | NYCZ 3 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 719 | 378 | MOSCA | Colorado | CONSOLIDATED COMMUNICATIONS OF COLORADO COMPANY | IND. TELCO | More |
| 720 | 378 | LONGMONT | Colorado | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 724 | 378 | ALIQUIPPA | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 727 | 378 | TAMPA | Florida | MCI WORLDCOM COMMUNICATIONS, INC. - FL | CLEC | More |
| 732 | 378 | NEWARK | New Jersey | TELEPORT COMMUNICATIONS AMERICA, LLC - NJ | CAP | More |
| 734 | 378 | DETROIT | Michigan | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | CLEC | More |
| 737 | 378 | KYLE | Texas | TON80 COMMUNICATIONS, LLC | | More |
| 740 | 378 | REEDSVILLE | Ohio | WINDSTREAM WESTERN RESERVE, INC. | IND. TELCO | More |
| 757 | 378 | PORTSMOUTH | Virginia | COX VIRGINIA TELCOM, INC. - VA | CLEC | More |
| 760 | 378 | WELDON | California | FRONTIER CALIFORNIA INC. | IND. TELCO | More |
| 762 | 378 | WRENS | Georgia | TON80 COMMUNICATIONS, LLC | | More |
| 765 | 378 | CHESTERFIELD | Indiana | INDIANA BELL TEL CO INC | RBOC | More |
| 769 | 378 | HATTIESBG | Mississippi | TON80 COMMUNICATIONS, LLC | | More |
| 770 | 378 | ATLANTA NORTHEAST | Georgia | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 773 | 378 | CHCZ 5 | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 774 | 378 | WRENTHAM | Massachusetts | TC SYSTEMS, INC. | CAP | More |
| 775 | 378 | RENO | Nevada | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 778 | 378 | Vancouver | British Columbia | Bell Mobility | WIRELESS PROV | More |
| 779 | 378 | MCHENRY | Illinois | ONVOY, LLC | | More |
| 780 | 378 | EDMONTON | Alberta | TELUS | IND. TELCO | More |
| 781 | 378 | NEEDHAM | Massachusetts | COMCAST IP PHONE, LLC | | More |
| 785 | 378 | MANKATO | Kansas | SOUTHWESTERN BELL | RBOC | More |
| 786 | 378 | MIAMI | Florida | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 787 | 378 | PIOPIEDRAS | Puerto Rico | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 801 | 378 | PROVO | Utah | QWEST CORPORATION | RBOC | More |
| 802 | 378 | GRAND ISLE | Vermont | LEVEL 3 COMMUNICATIONS, LLC - VT | | More |
| 803 | 378 | ORANGEBURG | South Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | WIRELESS PROV | More |
| 804 | 378 | MIDLOTHIAN | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 805 | 378 | MOORPARK | California | PACIFIC BELL | RBOC | More |
| 806 | 378 | AMARILLO DRAKE | Texas | SOUTHWESTERN BELL | RBOC | More |
| 808 | 378 | LIHUE | Hawaii | TIME WARNER CABLE INFORMATION SVCS (HAWAII) - HI | | More |
| 810 | 378 | CROSWELL | Michigan | MICHIGAN BELL TEL CO | RBOC | More |
| 812 | 378 | COLUMBUS | Indiana | INDIANA BELL TEL CO INC | RBOC | More |
| 813 | 378 | TAMPA | Florida | METROPCS, INC. | | More |
| 814 | 378 | HOUTZDALE | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 815 | 378 | ROCKFORD | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 816 | 378 | COSBY | Missouri | SPECTRA COMMUNICATIONS GROUP, LLC DBA CENTURYLINK | | More |
| 817 | 378 | FORT WORTH MARKET | Texas | SOUTHWESTERN BELL | RBOC | More |
| 818 | 378 | SHERMAN OAKS | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 819 | 378 | TROIS RIVIERES | Quebec | Bell Canada | IND. TELCO | More |
| 828 | 378 | ASHEVILLE | North Carolina | TELNYX LLC | | More |
| 830 | 378 | MILLETT | Texas | VALLEY TEL. COOP., INC. | IND. TELCO | More |
| 832 | 378 | HOUSTON | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 843 | 378 | SOCIETY HILL | South Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 845 | 378 | BLOOMINGBG | New York | TWC IP ENABLED SERVICES, LLC | | More |
| 847 | 378 | CHICAGO | Illinois | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 848 | 378 | SOUTHAMBOY | New Jersey | ONVOY, LLC - NJ | | More |
| 850 | 378 | PENSACOLA | Florida | BANDWIDTH.COM CLEC, LLC - FL | | More |
| 856 | 378 | BRIDGETON | New Jersey | METROPCS, INC. | | More |
| 857 | 378 | BOSTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 858 | 378 | SNDG MRMS | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 859 | 378 | HARRODSBURG | Kentucky | AT&T - LOCAL | CLEC | More |
| 860 | 378 | SOUTHINGTON | Connecticut | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | IND. TELCO | More |
| 862 | 378 | PATERSON | New Jersey | OMNIPOINT COMMUNICATIONS, INC. - NJ | WIRELESS PROV | More |
| 863 | 378 | BARTOW | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 864 | 378 | DUE WEST | South Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | WIRELESS PROV | More |
| 865 | 378 | KNOXVILLE | Tennessee | IP HORIZON LLC | | More |
| 870 | 378 | POCAHONTAS | Arkansas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 873 | 378 | Shawinigan | Quebec | TELUS Mobility | PCS | More |
| 878 | 378 | WESTNEWTON | Pennsylvania | ONVOY, LLC - PA | | More |
| 901 | 378 | MEMPHIS | Tennessee | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | WIRELESS PROV | More |
| 902 | 378 | DIGBY | Nova Scotia | Bragg Communications Inc. | CLEC | More |
| 903 | 378 | HONEY GROVE | Texas | SOUTHWESTERN BELL | RBOC | More |
| 904 | 378 | JACKSONVILLE | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 905 | 378 | ST CATHARINES THORO | Ontario | TELUS Integrated Communications | CLEC | More |
| 906 | 378 | MANISTIQUE | Michigan | SUPER COM, INC. | WIRELESS PROV | More |
| 907 | 378 | FAIRBANKS | Alaska | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 908 | 378 | ELIZABETH | New Jersey | PAETEC COMMUNICATIONS, INC. - NJ | CLEC | More |
| 909 | 378 | PERRIS | California | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | CLEC | More |
| 910 | 378 | JACKSONVL | North Carolina | LEVEL 3 COMMUNICATIONS, LLC - NC | | More |
| 912 | 378 | CAIRO | Georgia | LEVEL 3 COMMUNICATIONS, LLC - GA | CLEC | More |
| 913 | 378 | LENEXA | Kansas | WINDSTREAM NUVOX KANSAS, LLC | CLEC | More |
| 914 | 378 | WCHZ 1 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 915 | 378 | STERLING CITY | Texas | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | IND. TELCO | More |
| 916 | 378 | SACRAMENTO | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 917 | 378 | NEW YORK CITY ZONE | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 918 | 378 | TULSA | Oklahoma | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 919 | 378 | CARY | North Carolina | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | CLEC | More |
| 920 | 378 | APPLETON | Wisconsin | METROPCS, INC. | | More |
| 925 | 378 | MORAGA | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 928 | 378 | ROOSEVLTLK | Arizona | ONVOY, LLC - AZ | | More |
| 929 | 378 | NWYRCYZN14 | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 931 | 378 | CLARKSVILLE | Tennessee | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 937 | 378 | GEORGETOWN | Ohio | FRONTIER NORTH, INC. - OH | IND. TELCO | More |
| 939 | 378 | HORMIGUERO | Puerto Rico | LIBERTY MOBILE PUERTO RICO INC. | | More |
| 940 | 378 | LOVING | Texas | BRAZOS TEL. COOP., INC. | IND. TELCO | More |
| 941 | 378 | SARASOTA | Florida | FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA | IND. TELCO | More |
| 949 | 378 | IRVINE | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 951 | 378 | PERRIS | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 952 | 378 | MINNEAPOLIS | Minnesota | LEVEL 3 COMMUNICATIONS, LLC - MN | | More |
| 954 | 378 | MIAMI | Florida | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL | CLEC | More |
| 956 | 378 | MCALLEN | Texas | TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL | | More |
| 970 | 378 | GREELEY | Colorado | QWEST CORPORATION | RBOC | More |
| 971 | 378 | PORTLAND | Oregon | NUSO, LLC | | More |
| 972 | 378 | PLANO | Texas | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | IND. TELCO | More |
| 973 | 378 | SOUTH ORANGE | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 978 | 378 | BOSTON | Massachusetts | GLOBAL CROSSING LOCAL SERVICES, INC. - MA | CLEC | More |
| 979 | 378 | FAYETTEVILLE | Texas | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | IND. TELCO | More |
| 980 | 378 | CHARLOTTE | North Carolina | BANDWIDTH.COM CLEC, LLC - NC | | More |
| 984 | 378 | CARY | North Carolina | ONVOY, LLC - NC | | More |
| 985 | 378 | MADISONVL | Louisiana | TON80 COMMUNICATIONS, LLC | | More |
| 989 | 378 | SAGINAW | Michigan | ONVOY, LLCV - MI | | More |
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