Area Code | Prefix | City/Switch Name (Click for city search) | State/Prov. Area Map | Telephone Company Web link | Telco Type | More Info |
|---|
| 201 | 528 | RUTHERFORD | New Jersey | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | CLEC | More |
| 202 | 528 | WSHNGTNZN1 | Maryland | METROPCS, INC. | | More |
| 203 | 528 | WATERBURY | Connecticut | LEVEL 3 COMMUNICATIONS, LLC - CT | CLEC | More |
| 204 | 528 | NINETTE | Manitoba | MTS Inc. | IND. TELCO | More |
| 205 | 528 | GUIN | Alabama | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 206 | 528 | SEATTLE | Washington | QWEST CORPORATION | RBOC | More |
| 207 | 528 | PATTEN | Maine | CONSOLIDATED COMMUNICATIONS OF MAINE COMPANY | IND. TELCO | More |
| 208 | 528 | IDAHOFALLS | Idaho | QWEST CORPORATION | RBOC | More |
| 209 | 528 | WTFR DNPR | California | ONVOY, LLC - CA | | More |
| 210 | 528 | SANANTONIO | Texas | SOUTHWESTERN BELL | RBOC | More |
| 212 | 528 | NWYRCYZN01 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 213 | 528 | LSAN DA 02 | California | VOIP INNOVATIONS, LLC | | More |
| 214 | 528 | DALLAS | Texas | SOUTHWESTERN BELL | RBOC | More |
| 215 | 528 | PHLDLPHZN2 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 216 | 528 | CLEVELAND | Ohio | CALLWORKS CORPORATION | | More |
| 217 | 528 | SPRINGFLD | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 218 | 528 | BADGER | Minnesota | WIKSTROM TEL. CO., INC. | IND. TELCO | More |
| 224 | 528 | ROSELLE | Illinois | FIRST COMMUNICATIONS, LLC | | More |
| 225 | 528 | LUTCHER | Louisiana | IP HORIZON LLC | | More |
| 229 | 528 | OMEGA | Georgia | PLANT TEL. CO. | IND. TELCO | More |
| 240 | 528 | HUGHESVL | District of Columbia | LEVEL 3 COMMUNICATIONS, LLC - MD | CLEC | More |
| 248 | 528 | TROY | Michigan | MICHIGAN BELL TEL CO | RBOC | More |
| 250 | 528 | Midway | British Columbia | TELUS Mobility | WIRELESS PROV | More |
| 252 | 528 | BEAUFORT | North Carolina | UNITED STATES CELLULAR - NC | WIRELESS PROV | More |
| 253 | 528 | DES MOINES | Washington | QWEST CORPORATION | RBOC | More |
| 254 | 528 | WEST | Texas | COMMIO, LLC | | More |
| 256 | 528 | CROSSVILLE | Alabama | PEOPLES TEL. CO., INC. | IND. TELCO | More |
| 262 | 528 | MERTON | Wisconsin | TELEPORT COMMUNICATIONS AMERICA, LLC WI | CAP | More |
| 267 | 528 | PHLDLPHZN1 | Pennsylvania | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | WIRELESS PROV | More |
| 269 | 528 | THREERIVRS | Michigan | CENTURYLINK COMMUNICATIONS, LLC | | More |
| 270 | 528 | CANMER | Kentucky | SO CENTRAL RURAL TELECOMM COOPERATIVE, INC. | IND. TELCO | More |
| 276 | 528 | HURLEY | Virginia | MIKROTEC OF VIRGINIA, LLC - VA | | More |
| 281 | 528 | SPRING | Texas | SOUTHWESTERN BELL | RBOC | More |
| 301 | 528 | GAITHERSBG | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 302 | 528 | WILMINGTON | Delaware | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DE | WIRELESS PROV | More |
| 303 | 528 | DENVER | Colorado | AMERICAN MESSAGING SERVICES, LLC | | More |
| 304 | 528 | HNTNGTNZN1 | West Virginia | FRONTIER WEST VIRGINIA INC. | RBOC | More |
| 305 | 528 | NORTH DADE | Florida | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 306 | 528 | NOKOMIS | Saskatchewan | SaskTel | IND. TELCO | More |
| 307 | 528 | LARAMIE | Wyoming | CONTACT COMMUNICATIONS, INC. - WYOMING | CLEC | More |
| 308 | 528 | MINDEN | Nebraska | UNITED STATES CELLULAR - NE | WIRELESS PROV | More |
| 309 | 528 | BLOOMINGTN | Illinois | AMERICAN MESSAGING SERVICES, LLC | | More |
| 310 | 528 | CMTN GRDN | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 312 | 528 | CHICGOZN01 | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 313 | 528 | DETROIT | Michigan | ONVOY, LLCV - MI | | More |
| 314 | 528 | LADUE | Missouri | CHARTER FIBERLINK - MISSOURI, LLC - MO | | More |
| 315 | 528 | MADRID | New York | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 317 | 528 | INDIANAPOLIS | Indiana | INDIANA BELL TEL CO INC | RBOC | More |
| 318 | 528 | GEORGETOWN | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 319 | 528 | DENMARK | Iowa | WINDSTREAM IOWA COMMUNICATIONS, INC. | | More |
| 320 | 528 | BARRETT | Minnesota | RUNESTONE TELEPHONE ASSOCIATION | IND. TELCO | More |
| 323 | 528 | LSAN DA 09 | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 330 | 528 | NORTHFIELD | Ohio | WINDSTREAM WESTERN RESERVE, INC. | IND. TELCO | More |
| 334 | 528 | OPELIKA | Alabama | WINDSTREAM NUVOX, INC. | CLEC | More |
| 336 | 528 | WINSTN SAL | North Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | WIRELESS PROV | More |
| 337 | 528 | SULPHUR | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 346 | 528 | MANVEL | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 347 | 528 | NWYRCYZN06 | New York | METROPCS, INC. | | More |
| 352 | 528 | WILLISTON | Florida | CENTURYLINK OF FLORIDA, INC. (UNITED) | IND. TELCO | More |
| 360 | 528 | OLYMPIA | Washington | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | CLEC | More |
| 361 | 528 | TAFT | Texas | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | IND. TELCO | More |
| 385 | 528 | SALT LAKE CITY | Utah | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 401 | 528 | PROVIDENCE | Rhode Island | VERIZON NEW ENGLAND INC. | RBOC | More |
| 402 | 528 | BEEMER | Nebraska | GREAT PLAINS COMMUNICATIONS, INC. | IND. TELCO | More |
| 403 | 528 | MEDICINE HAT | Alberta | TELUS | IND. TELCO | More |
| 404 | 528 | ATLANTA | Georgia | POWERTEL ATLANTA LICENSES, INC. | WIRELESS PROV | More |
| 405 | 528 | OKLA CITY | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 406 | 528 | RONAN | Montana | RONAN TEL. CO. | IND. TELCO | More |
| 407 | 528 | ORLANDO | Florida | SMARTEDGENET, LLC | | More |
| 408 | 528 | SNJS SOUTH | California | PACIFIC BELL | RBOC | More |
| 409 | 528 | HOUSTON | Texas | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | CAP | More |
| 410 | 528 | BALTIMORE | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 412 | 528 | PTGSBNZN16 | Pennsylvania | LEVEL 3 COMMUNICATIONS, LLC - PA | CLEC | More |
| 413 | 528 | GREATBNGTN | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 415 | 528 | SNFC JUNPR | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 416 | 528 | TORONTO | Ontario | Bell Mobility | WIRELESS PROV | More |
| 417 | 528 | CLEVER | Missouri | ONVOY, LLC - MO | | More |
| 418 | 528 | QUEBEC | Quebec | Bell Canada | IND. TELCO | More |
| 419 | 528 | MANSFIELD | Ohio | UNITED TEL. CO. OF OHIO DBA CENTURYLINK | IND. TELCO | More |
| 423 | 528 | BAILEYTON | Tennessee | BANDWIDTH.COM CLEC, LLC - TN | | More |
| 424 | 528 | CMTN GRDN | California | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | CLEC | More |
| 425 | 528 | RENTON | Washington | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 432 | 528 | TERMINAL | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 434 | 528 | LYNCHBURG | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 435 | 528 | GUNNISON | Utah | GUNNISON TEL. CO. | IND. TELCO | More |
| 440 | 528 | CHAGRINFLS | Ohio | FIRST COMMUNICATIONS, LLC - OH | CLEC | More |
| 443 | 528 | BEL AIR | Maryland | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | WIRELESS PROV | More |
| 450 | 528 | St-Andre Est | Quebec | Videotron General Partnership | CLEC | More |
| 469 | 528 | LEWISVILLE | Texas | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | CAP | More |
| 470 | 528 | ATLANTA | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | WIRELESS PROV | More |
| 478 | 528 | DUBLIN | Georgia | METROCALL | WIRELESS PROV | More |
| 479 | 528 | GARFIELD | Arkansas | ONVOY, LLC - AR | | More |
| 480 | 528 | PHOENIX | Arizona | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | WIRELESS PROV | More |
| 484 | 528 | WESTTOWN | Pennsylvania | XO COMMUNICATIONS SERVICES, INC. - PA | CAP | More |
| 501 | 528 | MALVERN | Arkansas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR | WIRELESS PROV | More |
| 502 | 528 | ROSETRRACE | Kentucky | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | WIRELESS PROV | More |
| 503 | 528 | PORTLAND | Oregon | QWEST CORPORATION | RBOC | More |
| 504 | 528 | NEWORLEANS | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 505 | 528 | LAS CRUCES | New Mexico | ONVOY SPECTRUM, LLC | | More |
| 507 | 528 | CLAREMONT | Minnesota | CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN | | More |
| 508 | 528 | FRANKLIN | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 509 | 528 | PASCO | Washington | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 510 | 528 | OKLD BKLY | California | PACIFIC BELL | RBOC | More |
| 512 | 528 | LEANDER | Texas | SOUTHWESTERN BELL | RBOC | More |
| 513 | 528 | CLERMONT | Ohio | CINCINNATI BELL | IND. TELCO | More |
| 514 | 528 | MONTREAL | Quebec | Bell Canada | IND. TELCO | More |
| 515 | 528 | DES MOINES | Iowa | MCC TELEPHONY OF IOWA, LLC - IA | | More |
| 516 | 528 | NASSAUZN05 | New York | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 517 | 528 | AKRON | Michigan | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | | More |
| 518 | 528 | ALBANY | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 519 | 528 | LUCKNOW | Ontario | Bell Canada | IND. TELCO | More |
| 520 | 528 | SHOW LOW | Arizona | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | WIRELESS PROV | More |
| 530 | 528 | RED BLUFF | California | PACIFIC BELL | RBOC | More |
| 540 | 528 | THE PLAINS | Virginia | CORETEL VIRGINIA, LLC - VA | | More |
| 541 | 528 | TIDEWATER | Oregon | PIONEER TEL. COOPERATIVE | IND. TELCO | More |
| 559 | 528 | DINUBA | California | PACIFIC BELL | RBOC | More |
| 561 | 528 | PORT ST LUCIE | Florida | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 562 | 528 | LONG BEACH | California | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | CLEC | More |
| 563 | 528 | DAVENPORT | Iowa | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 570 | 528 | BLOOMSBURG | Pennsylvania | CORE COMMUNICATIONS, INC. - PA | | More |
| 571 | 528 | LEESBURG | Virginia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | WIRELESS PROV | More |
| 573 | 528 | WAYNESVL | Missouri | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 574 | 528 | SYRACUSE | Indiana | UNITED TEL. CO. OF INDIANA, INC. DBA CENTURYLINK | IND. TELCO | More |
| 575 | 528 | LAS CRUCES | New Mexico | QWEST CORPORATION | RBOC | More |
| 580 | 528 | FLORIS | Oklahoma | PANHANDLE TELECOMMUNICATIONS SYSTEMS, INC. | | More |
| 585 | 528 | ROCHESTER | New York | FRONTIER TELEPHONE OF ROCHESTER, INC. | IND. TELCO | More |
| 601 | 528 | WIGGINS | Mississippi | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 602 | 528 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 603 | 528 | LACONIA | New Hampshire | CONSOLIDATED COMM OF NO. NEW ENGLAND-NH | RBOC | More |
| 604 | 528 | NEW WESTMINISTER | British Columbia | TELUS | IND. TELCO | More |
| 605 | 528 | HARTFORD | South Dakota | UNION TEL. CO. DBA GOLDEN WEST TELECOMMUNICATIONS | IND. TELCO | More |
| 606 | 528 | CORBIN | Kentucky | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 608 | 528 | YUBA | Wisconsin | VERNON TEL. COOP. | IND. TELCO | More |
| 609 | 528 | MERCERVL | New Jersey | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | CLEC | More |
| 610 | 528 | CENTER PT | Pennsylvania | TELEPORT COMMUNICATIONS AMERICA, LLC - PA | CLEC | More |
| 612 | 528 | TWINCITIES | Minnesota | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | | More |
| 613 | 528 | MARTINTOWN | Ontario | Bell Canada | IND. TELCO | More |
| 614 | 528 | GAHANNA | Ohio | GLOBAL CROSSING LOCAL SERVICES, INC. - OH | CLEC | More |
| 615 | 528 | GOODLETSVL | Tennessee | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN | CLEC | More |
| 616 | 528 | CALEDONIA | Michigan | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | CAP | More |
| 617 | 528 | CAMBRIDGE | Massachusetts | TC SYSTEMS, INC. | CAP | More |
| 618 | 528 | CARBONDALE | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 619 | 528 | SNDG SNDG | California | PACIFIC BELL | RBOC | More |
| 620 | 528 | ALLEN | Kansas | S & A TEL. CO., INC. | IND. TELCO | More |
| 626 | 528 | LOS ANGELES | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 630 | 528 | HINSDALE | Illinois | FIRST COMMUNICATIONS, LLC | | More |
| 631 | 528 | NASSAU ZONES 2 3 5 | New York | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | CLEC | More |
| 636 | 528 | TROY | Missouri | CENTURYTEL MISSOURI LLC (SOUTHWEST)DBA CENTURYLINK | | More |
| 641 | 528 | MALCOM | Iowa | WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH | | More |
| 646 | 528 | MANHATTAN | New York | OMNIPOINT COMMUNICATIONS, INC. - NY | WIRELESS PROV | More |
| 647 | 528 | Toronto | Ontario | Bell Mobility | WIRELESS PROV | More |
| 650 | 528 | MOUNTAIN VIEW | California | PACIFIC BELL | RBOC | More |
| 651 | 528 | ST PAUL | Minnesota | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MN | CLEC | More |
| 657 | 528 | WESTMINSTR | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 660 | 528 | MARYVILLE | Missouri | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 661 | 528 | BAKERSFIELD | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 662 | 528 | YAZOO CITY | Mississippi | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 678 | 528 | ATLANTA | Georgia | LEVEL 3 COMMUNICATIONS, LLC - GA | CLEC | More |
| 681 | 528 | PRKRSBGZN1 | West Virginia | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 701 | 528 | ALAMO | North Dakota | NORTHWEST COMMUNICATIONS COOP. | IND. TELCO | More |
| 702 | 528 | LAS VEGAS | Nevada | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 703 | 528 | WASZ 8 | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 704 | 528 | TROUTMAN | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 705 | 528 | MIDLAND | Ontario | Bell Canada | IND. TELCO | More |
| 706 | 528 | NORCROSS | Georgia | TELEPORT COMMUNICATIONS AMERICA, LLC - GA | CLEC | More |
| 707 | 528 | SANTA ROSA | California | PACIFIC BELL | RBOC | More |
| 708 | 528 | BURR RIDGE | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 709 | 528 | BRIGUS | Newfoundland | Aliant Telecom (NF) | IND. TELCO | More |
| 713 | 528 | HOUSTON JACKSON | Texas | SOUTHWESTERN BELL | RBOC | More |
| 714 | 528 | PLACENTIA | California | PACIFIC BELL | RBOC | More |
| 715 | 528 | FLORENCE | Wisconsin | NIAGARA TEL. CO. | IND. TELCO | More |
| 716 | 528 | ROCHESTER | New York | BANDWIDTH.COM CLEC, LLC - NY | | More |
| 717 | 528 | YORK SPRINGS | Pennsylvania | UNITED TEL CO. OF PENNSYLVANIA DBA CENTURYLINK | IND. TELCO | More |
| 718 | 528 | NYCZ 12 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 719 | 528 | COLORADO SPRINGS | Colorado | QWEST CORPORATION | RBOC | More |
| 720 | 528 | LITTLETON | Colorado | QWEST CORPORATION | RBOC | More |
| 724 | 528 | WEST MIDDLESEX | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 727 | 528 | SAINT PETERSBURG | Florida | FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA | IND. TELCO | More |
| 731 | 528 | BIG SANDY | Tennessee | LEVEL 3 COMMUNICATIONS, LLC - TN | CLEC | More |
| 732 | 528 | MANASQUAN | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 734 | 528 | ANN ARBOR | Michigan | MICHIGAN BELL TEL CO | RBOC | More |
| 740 | 528 | GREEN CAMP | Ohio | FRONTIER NORTH, INC. - OH | IND. TELCO | More |
| 747 | 528 | GLENDALE | California | TON80 COMMUNICATIONS, LLC | | More |
| 757 | 528 | CHUCKATUCK | Virginia | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | WIRELESS PROV | More |
| 760 | 528 | ENCINITAS | California | BANDWIDTH.COM CLEC, LLC - CA | | More |
| 763 | 528 | FRIDLEY | Minnesota | QWEST CORPORATION | RBOC | More |
| 765 | 528 | EMINENCE | Indiana | CLAY COUNTRY RURAL TEL COOP DBA ENDEAVOR COMM | IND. TELCO | More |
| 770 | 528 | MARIETTA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 772 | 528 | PORT ST LUCIE | Florida | METROPCS, INC. | | More |
| 773 | 528 | CHCZ 4 | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 774 | 528 | FALL RIVER | Massachusetts | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 775 | 528 | RENO | Nevada | CALLWORKS CORPORATION | | More |
| 778 | 528 | Jordan River | British Columbia | Shaw Telecom Inc. | | More |
| 780 | 528 | Red Earth | Alberta | Bell Mobility | WIRELESS PROV | More |
| 781 | 528 | BOSTON | Massachusetts | PAETEC COMMUNICATIONS, INC. - MA | CLEC | More |
| 785 | 528 | OSAGE CITY | Kansas | UNITED TEL OF EASTERN KANSAS DBA CENTURYLINK | IND. TELCO | More |
| 786 | 528 | MIAMI | Florida | US LEC OF FLORIDA, INC. | CLEC | More |
| 787 | 528 | SANTURCE | Puerto Rico | SUNCOM DBA T-MOBILE USA | PCS | More |
| 801 | 528 | SALT LAKE CITY | Utah | XO UTAH, INC. | CLEC | More |
| 802 | 528 | ST ALBANS | Vermont | CONSOLIDATED COMMUNICATIONS OF VERMONT COMPANY | RBOC | More |
| 803 | 528 | NORTH AUGUSTA | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | WIRELESS PROV | More |
| 804 | 528 | LYNCHBURG | Virginia | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | WIRELESS PROV | More |
| 805 | 528 | BAYWOOD PARK | California | PACIFIC BELL | RBOC | More |
| 806 | 528 | AMARILLO | Texas | AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX | | More |
| 808 | 528 | HONOLULU | Hawaii | HAWAIIAN TELCOM, INC. - HI | IND. TELCO | More |
| 810 | 528 | FLINT | Michigan | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 812 | 528 | SEYMOUR | Indiana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN | WIRELESS PROV | More |
| 813 | 528 | TAMPANTH | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 814 | 528 | ERIE | Pennsylvania | VERIZON NORTH, INC. - PA | IND. TELCO | More |
| 815 | 528 | CHICAGO | Illinois | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | CAP | More |
| 816 | 528 | LATHROP | Missouri | LATHROP TEL. CO. | IND. TELCO | More |
| 817 | 528 | GRAND PRARIE | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 818 | 528 | SHERMAN OAKS | California | PACIFIC BELL | RBOC | More |
| 828 | 528 | NEWLAND | North Carolina | LEVEL 3 COMMUNICATIONS, LLC - NC | | More |
| 832 | 528 | HOUSTON | Texas | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 843 | 528 | BLENHEIM | South Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 845 | 528 | LAKELAND | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 847 | 528 | BURR RIDGE | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 850 | 528 | TALLAHASSEE | Florida | POWERTEL JACKSONVILLE LICENSES, INC. | WIRELESS PROV | More |
| 856 | 528 | HADDONFIELD | New Jersey | LEVEL 3 COMMUNICATIONS, LLC - NJ | CLEC | More |
| 859 | 528 | BEREA | Kentucky | WINDSTREAM NORLIGHT, INC. - KY | | More |
| 860 | 528 | EAST HARTFORD | Connecticut | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | IND. TELCO | More |
| 863 | 528 | LAKE WALES | Florida | METROPCS NETWORKS, LLC | | More |
| 864 | 528 | GREENVILLE | South Carolina | DELTACOM, INC. - SC | CLEC | More |
| 870 | 528 | JESUP | Arkansas | CENTURYTEL CENTRAL ARKANSAS, LLC DBA CENTURYLINK | | More |
| 901 | 528 | MEMPHIS | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 902 | 528 | WALTON | Nova Scotia | Aliant Telecom (NS) | IND. TELCO | More |
| 903 | 528 | TYLER LYRIC | Texas | AMERICAN MESSAGING SERVICES, LLC | | More |
| 904 | 528 | JACKSONVL | Florida | LEVEL 3 TELECOM OF FLORIDA, LP - FL | CLEC | More |
| 905 | 528 | HAMILTON | Ontario | Bell Canada | IND. TELCO | More |
| 907 | 528 | KODIAK | Alaska | BRISTOL BAY CELLULAR PARTNERSHIP | WIRELESS PROV | More |
| 908 | 528 | CLINTON | New Jersey | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 909 | 528 | MENTONE | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 910 | 528 | RALEIGH | North Carolina | METROPCS, INC. | | More |
| 912 | 528 | OMEGA | Georgia | SOUTHERN COMMUNICATIONS SERVICES, INC. | WIRELESS PROV | More |
| 914 | 528 | LAKELAND | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 915 | 528 | MIDLAND | Texas | NEW CINGULAR WIRELESS PCS, LCC - TX | WIRELESS PROV | More |
| 916 | 528 | LINCOLN | California | NORTH COUNTY COMMUNICATION CORPORATION - CA | CLEC | More |
| 917 | 528 | NEW YORK CITY ZONE | New York | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 918 | 528 | TULSA | Oklahoma | WINDSTREAM NUVOX OKLAHOMA, LLC | | More |
| 919 | 528 | CREEDMOOR | North Carolina | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | IND. TELCO | More |
| 920 | 528 | CASCADE | Wisconsin | FRONTIER NORTH INC. - WI | IND. TELCO | More |
| 925 | 528 | SAN FRANCISCO | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 928 | 528 | SHOW LOW | Arizona | SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA | WIRELESS PROV | More |
| 929 | 528 | NWYRCYZN11 | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 931 | 528 | COOKEVILLE | Tennessee | CITIZENS COMM CO TN DBA FRONTIER COMM OF TN, LLC | IND. TELCO | More |
| 937 | 528 | DAYTON | Ohio | OHIO BELL TEL CO | RBOC | More |
| 940 | 528 | LAKE ARROWHEAD | Texas | COMMUNITY TEL. CO. | IND. TELCO | More |
| 949 | 528 | LOS ANGELES - PAC W | California | MATRIX TELECOM, LLC. S/I/I TNCI - CA | CLEC | More |
| 951 | 528 | TEMECULA | California | VONAGE AMERICA LLC | | More |
| 954 | 528 | FORT LAUDERDALE | Florida | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 956 | 528 | LAREDO | Texas | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 970 | 528 | BERTHOUD | Colorado | PEERLESS NETWORK OF COLORADO, LLC - CO | | More |
| 972 | 528 | DALLAS RICHARDSON | Texas | SOUTHWESTERN BELL | RBOC | More |
| 973 | 528 | NEWARK | New Jersey | GLOBAL CROSSING LOCAL SERVICES, INC. - NJ | | More |
| 978 | 528 | BILLERICA | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 980 | 528 | MOORESVL | North Carolina | ONVOY, LLC - NC | | More |
| 984 | 528 | CHAPELHILL | North Carolina | SUNCOM DBA T-MOBILE USA | PCS | More |
| 989 | 528 | AKRON | Michigan | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
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