Area
Code | Prefix | City/Switch Name
(Click for city search) | State/Prov.
Area Map | Telephone Company
Web link | Telco
Type | More
Info |
|---|
| 201 | 644 | OAKLAND | New Jersey | CABLEVISION LIGHTPATH, INC. - NJ | CLEC | More |
| 202 | 644 | WSHNGTNZN1 | District of Columbia | TELEPORT COMMUNICATIONS GROUP, INC. - DC | CLEC | More |
| 203 | 644 | NORWALK | Connecticut | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | WIRELESS PROV | More |
| 204 | 644 | Gimli | Manitoba | Provincial Tel Inc. | | More |
| 205 | 644 | BIRMINGHAM | Alabama | ONTACT NETWORK, INC., DBA INLINE-A | | More |
| 207 | 644 | SO BRISTOL | Maine | TIDEWATER TELECOM, INC. | IND. TELCO | More |
| 208 | 644 | TWIN FALLS | Idaho | QWEST CORPORATION | RBOC | More |
| 209 | 644 | STOCKTON | California | PAC - WEST TELECOMM, INC. | CLEC | More |
| 210 | 644 | STONEWALL | Texas | SOUTHWESTERN BELL | RBOC | More |
| 212 | 644 | NWYRCYZN01 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 214 | 644 | ALLEN | Texas | CBEYOND COMMUNICATIONS OF TEXAS, LP-TX | | More |
| 215 | 644 | PHLDLPHZN1 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 216 | 644 | CLEVELAND | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 217 | 644 | STRASBURG | Illinois | ILLINOIS CONSOLIDATED TELEPHONE CO. | IND. TELCO | More |
| 218 | 644 | CROMWELL | Minnesota | CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN | | More |
| 219 | 644 | MERRILLVL | Indiana | AMERITECH INDIANA | RBOC | More |
| 225 | 644 | GONZALES | Louisiana | EAST ASCENSION TELEPHONE COMPANY, LLC | IND. TELCO | More |
| 229 | 644 | ALBANY | Georgia | DOVETEL COMMUNICATIONS, LLC - GA | | More |
| 231 | 644 | BRETHREN | Michigan | LUCRE, INC. | CLEC | More |
| 240 | 644 | WSHNGTNZN2 | District of Columbia | XO MARYLAND, LLC | CLEC | More |
| 248 | 644 | BIRMINGHAM | Michigan | AMERITECH MICHIGAN | RBOC | More |
| 250 | 644 | 100 Mile House | British Columbia | TELUS Mobility | WIRELESS PROV | More |
| 251 | 644 | MOBILE | Alabama | SPRINT SPECTRUM L.P. | PCS | More |
| 252 | 644 | WASHINGTON | North Carolina | DELTACOM, INC. - NC | CLEC | More |
| 254 | 644 | WACO | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 256 | 644 | JACKSONVL | Alabama | DELTACOM, INC. - AL | CLEC | More |
| 262 | 644 | SLINGER | Wisconsin | FRONTIER NORTH INC. - WI | IND. TELCO | More |
| 267 | 644 | PHPHSBZN32 | Pennsylvania | GLOBAL CROSSING LOCAL SERVICES, INC.-PA | CLEC | More |
| 270 | 644 | MARION | Kentucky | WINDSTREAM NORLIGHT, INC. - KY | | More |
| 276 | 644 | BRISTOL | Virginia | BRISTOL VIRGINIA UTILITIES - VA | | More |
| 281 | 644 | KATY | Texas | CONSOLIDATED COMMUNICATIONS OF FORT BEND COMPANY | IND. TELCO | More |
| 289 | 644 | Oakville | Ontario | Fibernetics Corporation | | More |
| 301 | 644 | FREDERICK | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 302 | 644 | LEWES | Delaware | VERIZON DELAWARE, INC. | RBOC | More |
| 303 | 644 | BENNETT | Colorado | EASTERN SLOPE RURAL TELEPHONE ASSOCIATION, INC. | IND. TELCO | More |
| 304 | 644 | SUTTON | West Virginia | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 305 | 644 | MIAMI | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 306 | 644 | LOREBURN | Saskatchewan | SaskTel | IND. TELCO | More |
| 309 | 644 | ROCKISLAND | Illinois | LEVEL 3 COMMUNICATIONS, LLC - IL | CLEC | More |
| 310 | 644 | HAWTHORNE | California | PACIFIC BELL | RBOC | More |
| 312 | 644 | CHICGOZN01 | Illinois | AMERITECH ILLINOIS | RBOC | More |
| 313 | 644 | DETROIT | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
| 314 | 644 | ST LOUIS | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 315 | 644 | NATURALBDG | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 316 | 644 | WICHITA | Kansas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS | WIRELESS PROV | More |
| 317 | 644 | INDIANAPLS | Indiana | NEUTRAL TANDEM-INDIANA, LLC - IN | | More |
| 318 | 644 | CALHOUN | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 319 | 644 | SOLON | Iowa | WINDSTREAM IOWA COMMUNICATIONS, INC. | | More |
| 323 | 644 | LSAN DA 02 | California | PACIFIC BELL | RBOC | More |
| 325 | 644 | WESTBROOK | Texas | SOUTHWESTERN BELL | RBOC | More |
| 330 | 644 | AKRON | Ohio | AMERITECH OHIO | RBOC | More |
| 334 | 644 | WEST POINT | Georgia | KNOLOGY OF THE VALLEY, INC. | IND. TELCO | More |
| 336 | 644 | SUMMERFLD | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 347 | 644 | NWYRCYZN10 | New York | METRO PCS, INC. | | More |
| 360 | 644 | PORTLAND | Oregon | ICG TELECOM GROUP - WA | CLEC | More |
| 361 | 644 | GOLIAD | Texas | AWESOME PAGING, INC. | WIRELESS PROV | More |
| 401 | 644 | PROVIDENCE | Rhode Island | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - RI | WIRELESS PROV | More |
| 402 | 644 | NORFOLK | Nebraska | QWEST CORPORATION | RBOC | More |
| 403 | 644 | STANDARD | Alberta | TELUS | IND. TELCO | More |
| 404 | 644 | ATLANTA | Georgia | POWERTEL ATLANTA LICENSES, INC. | WIRELESS PROV | More |
| 405 | 644 | OKLA CITY | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 406 | 644 | CHARLO | Montana | BLACKFOOT TELEPHONE COOPERATIVE, INC. | IND. TELCO | More |
| 407 | 644 | WINTERPARK | Florida | EMBARQ FLORIDA, INC. DBA CENTURYLINK | IND. TELCO | More |
| 408 | 644 | SNJS SOUTH | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 409 | 644 | TXSCYMARQU | Texas | SOUTHWESTERN BELL | RBOC | More |
| 410 | 644 | BALTIMORE | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 412 | 644 | PTTSBGZON1 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 413 | 644 | GREATBNGTN | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 415 | 644 | SNFC CNTRL | California | PACIFIC BELL | RBOC | More |
| 416 | 644 | TORONTO | Ontario | MTS Allstream Inc. | CLEC | More |
| 417 | 644 | LOWRY CITY | Missouri | SPECTRA COMMUNICATIONS GROUP LLC DBA CENTURYLINK | | More |
| 418 | 644 | QUEBEC | Quebec | Bell Canada | IND. TELCO | More |
| 419 | 644 | METAMORA | Ohio | UNITED TEL. CO. OF OHIO - CENTURYLINK | IND. TELCO | More |
| 423 | 644 | CHATTNOOGA | Tennessee | METROCALL | WIRELESS PROV | More |
| 424 | 644 | MALIBU | California | CHARTER FIBERLINK CA-CCO, LLC - CA | | More |
| 425 | 644 | BELLEVUE | Washington | QWEST CORPORATION | RBOC | More |
| 435 | 644 | KANAB | Utah | SOUTH CENTRAL UTAH TELEPHONE ASSOCIATION, INC. | IND. TELCO | More |
| 440 | 644 | CHESTERLD | Ohio | BANDWIDTH.COM CLEC, LLC - OH | | More |
| 443 | 644 | JARRETTSVL | Maryland | CTC COMMUNICATIONS CORP. - MD | CLEC | More |
| 450 | 644 | OUCHERVILLE | Quebec | TELUS Quebec | | More |
| 469 | 644 | GRANDPRARI | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 470 | 644 | ATLANTA NW | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 479 | 644 | ROGERS | Arkansas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | WIRELESS PROV | More |
| 480 | 644 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 484 | 644 | IRONTON | Pennsylvania | SPRINT SPECTRUM L.P. | PCS | More |
| 501 | 644 | LITTLEROCK | Arkansas | TELCOVE INVESTMENT, LLC - AR | CLEC | More |
| 502 | 644 | LOUISVILLE | Kentucky | POWERTEL KENTUCKY LICENSES, INC. | | More |
| 503 | 644 | BEAVERTON | Oregon | FRONTIER COMMUNICATIONS NORTHWEST, INC. - OR | IND. TELCO | More |
| 504 | 644 | NEWORLEANS | Louisiana | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 505 | 644 | LAS CRUCES | New Mexico | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM | WIRELESS PROV | More |
| 506 | 644 | ST JOHN | New Brunswick | Aliant Telecom(NB) | IND. TELCO | More |
| 507 | 644 | RED DEL | Minnesota | REDWOOD COUNTY TELEPHONE CO. | IND. TELCO | More |
| 508 | 644 | ASSONET | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 509 | 644 | SPOKANE | Washington | AMERICELL COMMS | WIRELESS PROV | More |
| 510 | 644 | OKLD BKLY | California | PACIFIC BELL | RBOC | More |
| 512 | 644 | SAN MARCOS | Texas | SPRINT SPECTRUM L.P. | PCS | More |
| 513 | 644 | BETHANY | Ohio | TW TELECOM OF OHIO LLC - OH | CLEC | More |
| 514 | 644 | MONTREAL | Quebec | Bell Canada | IND. TELCO | More |
| 515 | 644 | HARCOURT | Iowa | LEHIGH VALLEY COOPERATIVE TELEPHONE ASSN. | IND. TELCO | More |
| 516 | 644 | NASSAUZN08 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 517 | 644 | WEIDMAN | Michigan | FRONTIER NORTH, INC. - MI | IND. TELCO | More |
| 518 | 644 | BOLTON LDG | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 519 | 644 | BELMONT | Ontario | Bell Canada | IND. TELCO | More |
| 520 | 644 | MARANA | Arizona | QWEST CORPORATION | RBOC | More |
| 530 | 644 | PLVL WEST | California | PACIFIC BELL | RBOC | More |
| 540 | 644 | DAHLGREN | Virginia | VERIZON SOUTH INC.-VA (CONTEL) | IND. TELCO | More |
| 541 | 644 | HARRISBURG | Oregon | ELTOPIA COMMUNICATIONS, LLC - OR | | More |
| 559 | 644 | CARUTHERS | California | TW TELECOM OF CALIFORNIA LP - CA | CLEC | More |
| 561 | 644 | WPALMBEACH | Florida | SPRINT SPECTRUM L.P. | PCS | More |
| 562 | 644 | DOWNEY | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 567 | 644 | CELINA | Ohio | SPRINT SPECTRUM L.P. | PCS | More |
| 570 | 644 | SHAMOKIN | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 573 | 644 | JEFFERSNCY | Missouri | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 575 | 644 | LAS CRUCES | New Mexico | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM | WIRELESS PROV | More |
| 580 | 644 | HOOKER | Oklahoma | EPIC TOUCH CO. | | More |
| 581 | 644 | Colombier | Quebec | Videotron General Partnership | CLEC | More |
| 585 | 644 | XXXXXXXXXX | New York | MULTIPLE OCN LISTING | | More |
| 587 | 644 | Fort McMurray | Alberta | TELUS Mobility | WIRELESS PROV | More |
| 601 | 644 | MERIDIAN | Mississippi | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 602 | 644 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 603 | 644 | MANCHESTER | New Hampshire | NO NEW ENGLAND TEL OP DBA FAIRPOINT COMM - NH | RBOC | More |
| 604 | 644 | RICHMOND | British Columbia | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 605 | 644 | SPEARFISH | South Dakota | QWEST CORPORATION | RBOC | More |
| 606 | 644 | ASHLAND | Kentucky | TOUCHTONE COMMUNICATIONS, INC. DBA ALEC, INC. - KY | LOCAL RESELLER | More |
| 607 | 644 | BINGHAMTON | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 608 | 644 | SAUK CITY | Wisconsin | FRONTIER NORTH INC. - WI | IND. TELCO | More |
| 609 | 644 | HOPEWELL | New Jersey | LEVEL 3 COMMUNICATIONS, LLC - NJ | CLEC | More |
| 610 | 644 | PHPHSBZN28 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 612 | 644 | TWINCITIES | Minnesota | AERIAL COMMUNICATIONS | WIRELESS PROV | More |
| 613 | 644 | Marmora | Ontario | Bragg Communications Inc. | CLEC | More |
| 614 | 644 | COLUMBUS | Ohio | AMERITECH OHIO | RBOC | More |
| 615 | 644 | WESTMORELD | Tennessee | NORTH CENTRAL TELEPHONE COOPERATIVE, INC. - TN | IND. TELCO | More |
| 616 | 644 | GRAND RPDS | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
| 617 | 644 | NEWTON | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 618 | 644 | ST JACOB | Illinois | HOME TELEPHONE CO. IL | IND. TELCO | More |
| 619 | 644 | LA MESA | California | PACIFIC BELL | RBOC | More |
| 620 | 644 | FORT SCOTT | Kansas | LEVEL 3 COMMUNICATIONS, LLC - KS | | More |
| 626 | 644 | PSDN PSDN | California | SPRINT SPECTRUM L.P. | PCS | More |
| 630 | 644 | BENSENVL | Illinois | MCI WORLDCOM COMMUNICATIONS, INC. - IL | CLEC | More |
| 631 | 644 | RIVERHEAD | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 641 | 644 | BARNES CITY | Iowa | BARNES CITY COOPERATIVE TELEPHONE CO. | IND. TELCO | More |
| 646 | 644 | NEW YORK CITY ZONE | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 650 | 644 | OAKLAND | California | PAC - WEST TELECOMM, INC. | CLEC | More |
| 651 | 644 | STPZ 2 | Minnesota | QWEST CORPORATION | RBOC | More |
| 660 | 644 | BRECKENRIDGE | Missouri | GREEN HILLS TELEPHONE CORP. | IND. TELCO | More |
| 661 | 644 | SANTA CLARITA: NEWH | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 662 | 644 | GREENWOOD | Mississippi | LEVEL 3 COMMUNICATIONS, LLC - MS | | More |
| 678 | 644 | ATLANTA | Georgia | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 701 | 644 | EDMORE | North Dakota | POLAR COMMUNICATIONS MUTUAL AID CORP. | IND. TELCO | More |
| 702 | 644 | LAS VEGAS | Nevada | CENTRAL TEL. CO. - NV | IND. TELCO | More |
| 703 | 644 | WASZ 17 | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 704 | 644 | CHARLOTTE | North Carolina | TELCOVE OPERATIONS, INC. - NC | CLEC | More |
| 705 | 644 | BRACEBRIDGE | Ontario | Bell Canada | IND. TELCO | More |
| 706 | 644 | COLUMBUS | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 707 | 644 | VALLEJO | California | PACIFIC BELL | RBOC | More |
| 708 | 644 | NORTHBROOK | Illinois | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 709 | 644 | DEGRAS | Newfoundland | Aliant Telecom (NF) | IND. TELCO | More |
| 712 | 644 | LOGAN | Iowa | WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH | | More |
| 713 | 644 | HOUSTON MISSION | Texas | SOUTHWESTERN BELL | RBOC | More |
| 714 | 644 | ANAHEIM | California | PACIFIC BELL | RBOC | More |
| 715 | 644 | STANLEY | Wisconsin | CENTURYTEL MIDWEST-KENDALL LLC DBA CENTURYLINK | IND. TELCO | More |
| 716 | 644 | BUFFALO | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 717 | 644 | LEBANON | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 718 | 644 | MANHATTAN | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 719 | 644 | COLORDOSPG | Colorado | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 720 | 644 | DENVER | Colorado | MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- CO | CLEC | More |
| 724 | 644 | PITTSBURGH | Pennsylvania | GLOBAL CROSSING LOCAL SERVICES, INC.-PA | CLEC | More |
| 727 | 644 | TAMPA | Florida | SPRINT SPECTRUM L.P. | PCS | More |
| 731 | 644 | PARIS | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 732 | 644 | TOMS RIVER | New Jersey | SPRINT SPECTRUM L.P. | PCS | More |
| 734 | 644 | YPSILANTI | Michigan | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS LLC | | More |
| 740 | 644 | NEWARK | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 757 | 644 | NORFOLK | Virginia | LEVEL 3 COMMUNICATIONS, LLC - VA | CLEC | More |
| 760 | 644 | ESCONDIDO | California | SPRINT SPECTRUM L.P. | PCS | More |
| 765 | 644 | ANDERSON | Indiana | AMERITECH INDIANA | RBOC | More |
| 770 | 644 | SMYRNA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 773 | 644 | CHICAGO ZONE 1 | Illinois | TELEPORT COMMUNICATIONS GROUP - CHICAGO | CAP | More |
| 774 | 644 | FALL RIVER | Massachusetts | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | WIRELESS PROV | More |
| 775 | 644 | BAKER | Nevada | SBC INTERNET SERVICES, INC. | | More |
| 780 | 644 | EDMONTON | Alberta | Bell West Inc. | | More |
| 781 | 644 | NEEDHAM | Massachusetts | BROADVIEW NETWORKS, INC. - MA | | More |
| 785 | 644 | HIGHLAND | Kansas | LEVEL 3 COMMUNICATIONS, LLC - KS | | More |
| 787 | 644 | SANTURCE | Puerto Rico | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 801 | 644 | OGDEN | Utah | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 802 | 644 | JEFFERSONVILLE | Vermont | TELEPHONE OP CO OF VERMONT DBA FAIRPOINT COMM-VT | RBOC | More |
| 803 | 644 | AIKEN | South Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 804 | 644 | RICHMOND | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 805 | 644 | VENTURA | California | PACIFIC BELL | RBOC | More |
| 806 | 644 | SPEARMAN | Texas | PANHANDLE TELECOMMUNICATIONS SYSTEMS, INC. | WIRELESS PROV | More |
| 808 | 644 | LIHUE | Hawaii | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 810 | 644 | DETROIT | Michigan | TCG DETROIT - MI | | More |
| 812 | 644 | ALFORDSVILLE GLENDA | Indiana | DAVIESS MARTIN CTY RURL TEL DBA RTC COMMUNICATIONS | IND. TELCO | More |
| 813 | 644 | TAMPACEN | Florida | BRIGHT HOUSE NTWS INFORMATION SVCS (FLORIDA) - FL | | More |
| 814 | 644 | HUNTINGDON | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 815 | 644 | CRESCENT CITY | Illinois | RCN TELECOM SERVICES OF ILLINOIS, INC. - IL | CLEC | More |
| 816 | 644 | COSBY | Missouri | SOCKET TELECOM, LLC - MO | | More |
| 817 | 644 | FORT WORTH | Texas | GRANDE COMMUNICATIONS NETWORKS, INC. - TX | CLEC | More |
| 818 | 644 | SHERMAN OAKS | California | PACIFIC BELL | RBOC | More |
| 819 | 644 | Richmond | Quebec | TELUS Quebec | | More |
| 828 | 644 | SUIT | North Carolina | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC - NC | IND. TELCO | More |
| 830 | 644 | STONEWALL | Texas | GTE-SW DBA VERIZON SW INC.-TX | IND. TELCO | More |
| 831 | 644 | MONTEREY | California | PACIFIC BELL | RBOC | More |
| 832 | 644 | HOUSTON | Texas | BROADWING COMMUNICATIONS, LLC - TX | CLEC | More |
| 843 | 644 | LAUREL BAY | South Carolina | HARGRAY, INC.-SC | | More |
| 845 | 644 | POUGHKEEPSIE | New York | LEVEL 3 COMMUNICATIONS, LLC - NY | CLEC | More |
| 847 | 644 | EVANSTON | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 850 | 644 | TALLAHASSEE | Florida | EMBARQ FLORIDA INC. (CENTRAL) DBA CENTURYLINK | IND. TELCO | More |
| 856 | 644 | BLACKWOOD | New Jersey | BROADVOX-CLEC, LLC - NJ | | More |
| 859 | 644 | WINCHESTER | Kentucky | SPRINT SPECTRUM L.P. | PCS | More |
| 860 | 644 | SOUTH WINDSOR | Connecticut | SOUTHERN NEW ENGLAND TELEPHONE CO. | IND. TELCO | More |
| 863 | 644 | LAKELAND | Florida | VERIZON FLORIDA INC. | IND. TELCO | More |
| 864 | 644 | GREENVILLE | South Carolina | NUVOX COMMUNICATIONS | CLEC | More |
| 870 | 644 | WATSON | Arkansas | SOUTHWESTERN BELL | RBOC | More |
| 901 | 644 | MEMPHIS | Tennessee | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 902 | 644 | NEW GERMANY | Nova Scotia | Aliant Telecom (NS) | IND. TELCO | More |
| 903 | 644 | DALLAS | Texas | BROADWING COMMUNICATIONS, LLC - TX | CLEC | More |
| 904 | 644 | JACKSONVILLE | Florida | NUVOX COMMUNICATIONS | CLEC | More |
| 905 | 644 | OSHAWA | Ontario | Bell Canada | IND. TELCO | More |
| 906 | 644 | GARDEN | Michigan | CENTURYTEL OF UPPER MICHIGAN INC DBA CENTURYLINK | IND. TELCO | More |
| 907 | 644 | ANCHORAGE | Alaska | GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION | CLEC | More |
| 908 | 644 | PLAINFIELD | New Jersey | TELCOVE INVESTMENT, LLC - NJ | CLEC | More |
| 909 | 644 | RIALTO | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 910 | 644 | SUMMERFIELD | North Carolina | SUNCOM DBA T-MOBILE USA | PCS | More |
| 912 | 644 | SAVANNAH | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 913 | 644 | KANSAS CITY | Kansas | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 914 | 644 | WCHZ 8 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 915 | 644 | WESTBROOK | Texas | SOUTHWESTERN BELL | RBOC | More |
| 916 | 644 | SACRAMENTO | California | TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO | CLEC | More |
| 917 | 644 | NEW YORK CITY ZONE | New York | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 918 | 644 | XXXXXXXXXX | Oklahoma | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 919 | 644 | HILLSBOROUGH | North Carolina | CENTRAL TEL. CO. OF NORTH CAROLINA DBA CENTURYLINK | IND. TELCO | More |
| 920 | 644 | WISCONSIN | Wisconsin | TELEPORT COMMUNICATIONS GROUP - MILWAUKEE | CAP | More |
| 931 | 644 | COOKEVILLE | Tennessee | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | WIRELESS PROV | More |
| 937 | 644 | MARYSVILLE | Ohio | UNITED TEL. CO. OF OHIO - CENTURYLINK | IND. TELCO | More |
| 939 | 644 | SANTURCE | Puerto Rico | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 940 | 644 | CHICO | Texas | CENTRAL TEL. CO. OF TEXAS DBA CENTURYLINK | IND. TELCO | More |
| 949 | 644 | CORONA DEL MAR | California | PACIFIC BELL | RBOC | More |
| 954 | 644 | FORT LAUDERDALE | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 970 | 644 | GRAND JCT | Colorado | PEERLESS NETWORK OF COLORADO, LLC - CO | | More |
| 972 | 644 | DALLAS RICHARDSON | Texas | SOUTHWESTERN BELL | RBOC | More |
| 973 | 644 | MORRISTOWN | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 978 | 644 | LOWELL | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 979 | 644 | BRYAN | Texas | SPRINT SPECTRUM L.P. | PCS | More |
| 985 | 644 | PT SULPHUR | Louisiana | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 989 | 644 | WEIDMAN | Michigan | FRONTIER NORTH, INC. - MI | IND. TELCO | More |
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