Area
Code | Prefix | City/Switch Name
(Click for city search) | State/Prov.
Area Map | Telephone Company
Web link | Telco
Type | More
Info |
|---|
| 201 | 581 | OAKLAND | New Jersey | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | | More |
| 202 | 581 | WSHNGTNZN1 | District of Columbia | VERIZON WASHINGTON DC, INC. | RBOC | More |
| 203 | 581 | BRIDGEPORT | Connecticut | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | IND. TELCO | More |
| 205 | 581 | BIRMINGHAM | Alabama | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 206 | 581 | SEATTLE | Washington | CORETEL WASHINGTON, INC. - WA | | More |
| 207 | 581 | ORONO | Maine | CONSOLIDATED COMM OF NO. NEW ENGLAND-ME | RBOC | More |
| 208 | 581 | BOISE | Idaho | STRATUS NETWORKS | | More |
| 209 | 581 | MODESTO | California | PACIFIC BELL | RBOC | More |
| 210 | 581 | SANANTONIO | Texas | LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | CLEC | More |
| 212 | 581 | NWYRCYZN01 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 213 | 581 | LSAN DA 02 | California | METROPCS NETWORKS, LLC | | More |
| 214 | 581 | GRANDPRARI | Texas | AMERICAN MESSAGING SERVICES, LLC | | More |
| 215 | 581 | PHLDLPHZN2 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 216 | 581 | MONTRSE | Ohio | OHIO BELL TEL CO | RBOC | More |
| 217 | 581 | CHARLESTON | Illinois | ILLINOIS CONSOLIDATED TEL. CO. | IND. TELCO | More |
| 218 | 581 | OSAGE | Minnesota | PAUL BUNYAN RURAL TELEPHONE COOP. | CLEC | More |
| 224 | 581 | HAMPSHIRE | Illinois | ONVOY, LLC | | More |
| 226 | 581 | Kitchener-Waterloo | Ontario | TELUS Mobility | CAP | More |
| 229 | 581 | TIFTON | Georgia | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 231 | 581 | ALBA | Michigan | CHARTER FIBERLINK - MICHIGAN, LLC - MI | | More |
| 240 | 581 | LAUREL236 | District of Columbia | PAETEC COMMUNICATIONS, INC. - DC | CLEC | More |
| 248 | 581 | ROYAL OAK | Michigan | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI | CLEC | More |
| 250 | 581 | CRANBROOK | British Columbia | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 251 | 581 | MOBILE | Alabama | SOUTHERN COMMUNICATIONS SERVICES, INC. | WIRELESS PROV | More |
| 252 | 581 | KLDEVILHLS | North Carolina | METROPCS, INC. | | More |
| 253 | 581 | TACOMA | Washington | QWEST CORPORATION | RBOC | More |
| 256 | 581 | OHATCHEE | Alabama | TELEPORT COMMUNICATIONS AMERICA, LLC - AL | CLEC | More |
| 262 | 581 | LAKEGENEVA | Wisconsin | LEVEL 3 COMMUNICATIONS, LLC - WI | | More |
| 267 | 581 | PHLDLPHZN1 | Pennsylvania | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 270 | 581 | OWENSBORO | Kentucky | E-TEL, LLC - KY | CLEC | More |
| 281 | 581 | LIVERPOOL | Texas | SOUTHWESTERN BELL | RBOC | More |
| 289 | 581 | Uxbridge | Ontario | Telnet Communications | | More |
| 301 | 581 | WSHNGTNZN2 | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 302 | 581 | OCEAN VIEW | Delaware | ATX TELECOMMUNICATIONS SERVICES, LTD. - PA | CLEC | More |
| 303 | 581 | DENVER | Colorado | QWEST CORPORATION | RBOC | More |
| 304 | 581 | MORGANTOWN | West Virginia | FRONTIER WEST VIRGINIA INC. | RBOC | More |
| 305 | 581 | KEYS | Florida | PAETEC COMMUNICATIONS, INC. - FL | CLEC | More |
| 306 | 581 | REGINA | Saskatchewan | Rogers Communications Partnership (Wireless) | WIRELESS PROV | More |
| 309 | 581 | MOLINE | Illinois | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | CAP | More |
| 310 | 581 | SNMN SNMN | California | FRONTIER CALIFORNIA INC. | IND. TELCO | More |
| 312 | 581 | CHICGOZN01 | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 313 | 581 | DETROITZN6 | Michigan | MICHIGAN BELL TEL CO | RBOC | More |
| 314 | 581 | CREVECOEUR | Missouri | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 315 | 581 | WATERLOO | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 316 | 581 | DODGE CITY | Kansas | CENTURYLINK COMMUNICATIONS LLC - KS | CLEC | More |
| 317 | 581 | CARMEL | Indiana | INDIANA BELL TEL CO INC | RBOC | More |
| 318 | 581 | NATCHITCHS | Louisiana | LEVEL 3 COMMUNICATIONS, LLC - LA | | More |
| 319 | 581 | DUBUQUE | Iowa | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | WIRELESS PROV | More |
| 323 | 581 | LSAN DA 06 | California | PACIFIC BELL | RBOC | More |
| 330 | 581 | ALLIANCE | Ohio | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 334 | 581 | UNIONTOWN | Alabama | SOUTHERN COMMUNICATIONS SERVICES, INC. | WIRELESS PROV | More |
| 336 | 581 | BENNETT | North Carolina | RANDOLPH TEL. MEMBERSHIP CORP. | IND. TELCO | More |
| 337 | 581 | CROWLEY | Louisiana | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 346 | 581 | SPRING | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 347 | 581 | NWYRCYZN06 | New York | METROPCS, INC. | | More |
| 352 | 581 | OCALA | Florida | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 360 | 581 | ABERDEEN | Washington | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | | More |
| 361 | 581 | BISHOP | Texas | CLEARWIRE TELECOMMUNICATIONS SERVICES, LLC - TX | | More |
| 401 | 581 | WOONSOCKET | Rhode Island | VERIZON NEW ENGLAND INC. | RBOC | More |
| 402 | 581 | OMAHA | Nebraska | COMCAST IP PHONE, LLC | | More |
| 403 | 581 | MEDICINE HAT | Alberta | TELUS | IND. TELCO | More |
| 404 | 581 | ATLANTA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 405 | 581 | SHAWNEE | Oklahoma | LEVEL 3 COMMUNICATIONS, LLC - OK | | More |
| 406 | 581 | BOZEMAN | Montana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | WIRELESS PROV | More |
| 407 | 581 | ORLANDO | Florida | US LEC OF FLORIDA, INC. | CLEC | More |
| 408 | 581 | SNJS WEST | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 410 | 581 | PIKESVILLE | Maryland | VERIZON MARYLAND, INC. | RBOC | More |
| 412 | 581 | PTTSBGZON1 | Pennsylvania | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 413 | 581 | CHESTERFLD | Massachusetts | CHOICE ONE COMMUNICATIONS, INC. - MA | CLEC | More |
| 414 | 581 | MILWAUKZN1 | Wisconsin | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 415 | 581 | SNFC CNTRL | California | PACIFIC BELL | RBOC | More |
| 416 | 581 | TORONTO | Ontario | Bell Canada | IND. TELCO | More |
| 417 | 581 | OZARK | Missouri | CENTURYTEL MISSOURI LLC (SOUTHWEST)DBA CENTURYLINK | | More |
| 419 | 581 | FINDLAY | Ohio | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | CLEC | More |
| 423 | 581 | MORRISTOWN | Tennessee | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 424 | 581 | SNMN SNMN | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 434 | 581 | ARVONIA | Virginia | CENTRAL TEL. CO. OF VIRGINIA DBA CENTURYLINK | IND. TELCO | More |
| 440 | 581 | ELYRIA | Ohio | TELEPORT COMMUNICATIONS AMERICA, LLC - OH | CLEC | More |
| 443 | 581 | CHASE | Maryland | ONVOY, LLC - MD | | More |
| 450 | 581 | LE GARDEUR | Quebec | Bell Canada | IND. TELCO | More |
| 469 | 581 | PRINCETON | Texas | BANDWIDTH.COM CLEC, LLC - TX | | More |
| 470 | 581 | ATLANTA NW | Georgia | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | WIRELESS PROV | More |
| 480 | 581 | PHOENIX | Arizona | LEVEL 3 COMMUNICATIONS, LLC - AZ | | More |
| 484 | 581 | PHPHSBZN26 | Pennsylvania | PAETEC COMMUNICATIONS, INC. - PA | CLEC | More |
| 501 | 581 | GREENBRIER | Arkansas | WINDSTREAM ARKANSAS, INC. | IND. TELCO | More |
| 502 | 581 | LOUISVILLE | Kentucky | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 503 | 581 | SALEM | Oregon | QWEST CORPORATION | RBOC | More |
| 504 | 581 | NEWORLEANS | Louisiana | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 505 | 581 | EL RITO | New Mexico | ONVOY, LLC - NM | | More |
| 507 | 581 | NORTHFIELD | Minnesota | AERIAL COMMUNICATIONS, INC. | WIRELESS PROV | More |
| 508 | 581 | MILLBURY | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 509 | 581 | KENNEWICK | Washington | ONVOY, LLC - WA | | More |
| 510 | 581 | HAYWARD | California | PACIFIC BELL | RBOC | More |
| 512 | 581 | BASTROP | Texas | SOUTHWESTERN BELL | RBOC | More |
| 513 | 581 | CINCINNATI | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 514 | 581 | MONTREAL | Quebec | Fido Solutions Inc. | | More |
| 515 | 581 | OGDEN | Iowa | UNITED STATES CELLULAR - IA | WIRELESS PROV | More |
| 516 | 581 | NASSAUZN05 | New York | NEW CINGULAR WIRELESS PCS, LLC - DC | WIRELESS PROV | More |
| 517 | 581 | JACKSON | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
| 518 | 581 | SARATOGSPG | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 519 | 581 | KITCHENER | Ontario | Bell Canada | IND. TELCO | More |
| 520 | 581 | YUMA | Arizona | IP HORIZON LLC | | More |
| 530 | 581 | NTAH THCY | California | PACIFIC BELL | RBOC | More |
| 540 | 581 | ROANOKE | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 541 | 581 | PENDLETON | Oregon | BANDWIDTH.COM CLEC, LLC - OR | | More |
| 559 | 581 | FRESNO | California | IP HORIZON LLC | | More |
| 561 | 581 | SEBASTIAN | Florida | ONVOY, LLC - FL | | More |
| 562 | 581 | LAKEWOOD | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 563 | 581 | DUBUQUE | Iowa | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA | WIRELESS PROV | More |
| 570 | 581 | POTTSVILLE | Pennsylvania | LEVEL 3 COMMUNICATIONS, LLC - PA | CLEC | More |
| 571 | 581 | WSNGTNZN17 | Virginia | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 573 | 581 | MEXICO | Missouri | SOUTHWESTERN BELL | RBOC | More |
| 574 | 581 | MONTICELLO | Indiana | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 575 | 581 | EL RITO | New Mexico | VALOR TELECOM TX,LP-NM #2 DBA WINDSTREAM COMM SW | | More |
| 580 | 581 | LAWTON | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 585 | 581 | ROCHESTER | New York | FRONTIER TELEPHONE OF ROCHESTER, INC. | IND. TELCO | More |
| 601 | 581 | MERIDIAN | Mississippi | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | RBOC | More |
| 602 | 581 | PHOENIX | Arizona | METROPCS, INC. | | More |
| 603 | 581 | LACONIA | New Hampshire | CHOICE ONE OF NEW HAMPSHIRE, INC. | CLEC | More |
| 604 | 581 | NORTH WESTMINSTER | British Columbia | TELUS | IND. TELCO | More |
| 605 | 581 | VERMILLION | South Dakota | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 608 | 581 | BARABOO | Wisconsin | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | WIRELESS PROV | More |
| 609 | 581 | MERCERVL | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 610 | 581 | PHPHSBZN25 | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 612 | 581 | TWINCITIES | Minnesota | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN | | More |
| 613 | 581 | OTTAWA | Ontario | TELUS Mobility | PCS | More |
| 614 | 581 | COLUMBUS | Ohio | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | WIRELESS PROV | More |
| 615 | 581 | WHITEHOUSE | Tennessee | WINDSTREAM NUVOX, INC. | CLEC | More |
| 616 | 581 | GRAND RPDS | Michigan | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | WIRELESS PROV | More |
| 617 | 581 | NEWTON | Massachusetts | CONVERSENT COMMUNICATIONS OF MASSACHUSETTS, LLC | CLEC | More |
| 618 | 581 | COLLINSVL | Missouri | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 619 | 581 | SNDG SNDG | California | NEW CINGULAR WIRELESS PCS, LLC | WIRELESS PROV | More |
| 620 | 581 | DODGE CITY | Kansas | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 623 | 581 | PHOENIX | Arizona | QWEST CORPORATION | RBOC | More |
| 626 | 581 | LA PUENTE | California | FRONTIER CALIFORNIA INC. | IND. TELCO | More |
| 630 | 581 | HINSDALE | Illinois | AT&T - LOCAL | CLEC | More |
| 631 | 581 | BAY SHORE | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 641 | 581 | FOREST CITY | Iowa | WINNEBAGO COOP. TEL. ASSN. - IA | IND. TELCO | More |
| 646 | 581 | NWYRCYZN01 | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 650 | 581 | SAN FRANCISCO | California | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | CLEC | More |
| 651 | 581 | TWINCITIES | Minnesota | QWEST CORPORATION | RBOC | More |
| 657 | 581 | ORANGE | California | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | WIRELESS PROV | More |
| 660 | 581 | BRADDYVILLE | Iowa | WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH | | More |
| 661 | 581 | PLDL PLDL | California | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | CLEC | More |
| 662 | 581 | GREENWOOD | Mississippi | TELEPAK NETWORKS, INC. - MS | | More |
| 678 | 581 | MARIETTA | Georgia | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 681 | 581 | VAN | West Virginia | ONVOY, LLC - WV | | More |
| 701 | 581 | FARGO | Minnesota | BANDWIDTH.COM CLEC, LLC - ND | | More |
| 702 | 581 | LAS VEGAS | Nevada | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 703 | 581 | LEESBURG | Virginia | VERIZON VIRGINIA, INC. | RBOC | More |
| 704 | 581 | CHARLOTTE | North Carolina | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 705 | 581 | Verner | Ontario | Bragg Communications Inc. | CLEC | More |
| 706 | 581 | DALTON | Georgia | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 707 | 581 | OAKLAND | California | ONVOY, LLC - CA | | More |
| 708 | 581 | OAK LAWN | Illinois | ONVOY, LLC | | More |
| 712 | 581 | SIOUX CITY | Iowa | BANDWIDTH.COM CLEC, LLC - IA | | More |
| 713 | 581 | HOUSTON | Texas | ONVOY, LLC - TX | | More |
| 714 | 581 | HUNTINGTON BEACH | California | LEVEL 3 COMMUNICATIONS, LLC - CA | CLEC | More |
| 715 | 581 | WAUSAU | Wisconsin | NEW CELL DBA CELLCOM | WIRELESS PROV | More |
| 716 | 581 | ROCHESTER | New York | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | WIRELESS PROV | More |
| 717 | 581 | EAST PETERSBURG | Pennsylvania | VERIZON PENNSYLVANIA, INC. | RBOC | More |
| 718 | 581 | NYCZ 5 | New York | VERIZON NEW YORK, INC. | RBOC | More |
| 719 | 581 | ALAMOSA | Colorado | BANDWIDTH.COM CLEC, LLC - CO | | More |
| 720 | 581 | DENVER | Colorado | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 724 | 581 | BEAVER FALLS | Pennsylvania | CORE COMMUNICATIONS, INC. - PA | | More |
| 727 | 581 | CLEARWATER | Florida | FRONTIER FLORIDA LLC DBA FRONTIER COMM OF FLORIDA | IND. TELCO | More |
| 732 | 581 | TOMS RIVER | New Jersey | OMNIPOINT COMMUNICATIONS, INC. - NJ | WIRELESS PROV | More |
| 734 | 581 | ROMULUS | Michigan | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | | More |
| 740 | 581 | CALDWELL | Ohio | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 754 | 581 | HOLLYWOOD | Florida | OMNIPOINT MIAMI E LICENSE, LLC | PCS | More |
| 757 | 581 | NORFOLK ZONE 2 | Virginia | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | WIRELESS PROV | More |
| 760 | 581 | RIVERSIDE | California | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | CLEC | More |
| 763 | 581 | TWINCITIES | Minnesota | QWEST CORPORATION | RBOC | More |
| 765 | 581 | INDIANA | Indiana | TELEPORT COMMUNICATIONS AMERICA, LLC - IN | CAP | More |
| 770 | 581 | ZEBULON | Georgia | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 772 | 581 | SEBASTIAN | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 773 | 581 | CHCZ 8 | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 774 | 581 | FOXBORO | Massachusetts | METROPCS, INC. | | More |
| 775 | 581 | RENO | Nevada | LEVEL 3 COMMUNICATIONS, LLC - NV | CLEC | More |
| 778 | 581 | Kelowna | British Columbia | TELUS Mobility | WIRELESS PROV | More |
| 780 | 581 | VERMILION | Alberta | TELUS | IND. TELCO | More |
| 781 | 581 | LYNN | Massachusetts | VERIZON NEW ENGLAND INC. | RBOC | More |
| 785 | 581 | TOPEKA | Kansas | TELEPORT COMMUNICATIONS AMERICA, LLC - KS | CLEC | More |
| 786 | 581 | MIAMI | Florida | US LEC OF FLORIDA, INC. | CLEC | More |
| 787 | 581 | SANTURCE | Puerto Rico | LINK TECH CORPORATION | WIRELESS PROV | More |
| 801 | 581 | SALT LAKE CITY | Utah | QWEST CORPORATION | RBOC | More |
| 803 | 581 | CHESTER | South Carolina | CHESTER TEL. CO. | IND. TELCO | More |
| 804 | 581 | ARVONIA | Virginia | BANDWIDTH.COM CLEC, LLC - VA | | More |
| 805 | 581 | SIMI VALLEY | California | PACIFIC BELL | RBOC | More |
| 806 | 581 | IDALOU | Texas | VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW | | More |
| 808 | 581 | HONOLULU (OAHU ISLA | Hawaii | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 810 | 581 | MARINE CITY | Michigan | USA MOBILITY WIRELESS, INC. | WIRELESS PROV | More |
| 812 | 581 | FLAT ROCK | Indiana | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | | More |
| 813 | 581 | TAMPACEN | Florida | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | CLEC | More |
| 814 | 581 | SPARTANSBURG | Pennsylvania | TELNYX LLC | | More |
| 815 | 581 | ROLLING MEADOWS | Illinois | COMCAST IP PHONE, LLC | | More |
| 816 | 581 | KANSAS CITY | Missouri | LEVEL 3 TELECOM OF KANSAS CITY, LLC - MO | CLEC | More |
| 817 | 581 | FORT WORTH N. RICHL | Texas | SOUTHWESTERN BELL | RBOC | More |
| 818 | 581 | SAN FERNANDO: SAN F | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 828 | 581 | SWANNANOA | North Carolina | WINDSTREAM NUVOX, INC. | CLEC | More |
| 830 | 581 | SAN ANTONIO CAPITOL | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 832 | 581 | HOUSTON | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 843 | 581 | COLLINS CREEK | South Carolina | HORRY TEL. COOP., INC. | IND. TELCO | More |
| 845 | 581 | NANUET | New York | BANDWIDTH.COM CLEC, LLC - NY | | More |
| 847 | 581 | SKOKIE | Illinois | ILLINOIS BELL TEL CO | RBOC | More |
| 850 | 581 | FORT WALTON BEACH | Florida | CENTURYLINK OF FLORIDA, INC. (CENTRAL) | IND. TELCO | More |
| 856 | 581 | MOORESTOWN | New Jersey | LEVEL 3 COMMUNICATIONS, LLC - NJ | CLEC | More |
| 858 | 581 | PACIFIC BEACH | California | PACIFIC BELL | RBOC | More |
| 859 | 581 | COVINGTON | Kentucky | CINCINNATI BELL | IND. TELCO | More |
| 860 | 581 | CONNECTICUT | Connecticut | TELEPORT COMMUNICATIONS AMERICA, LLC - CT | CAP | More |
| 863 | 581 | LAKELAND | Florida | METROPCS NETWORKS, LLC | | More |
| 864 | 581 | ANDERSON | South Carolina | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 867 | 581 | WRIGLEY | Northwest Territory | Northwestel | IND. TELCO | More |
| 870 | 581 | FORREST CITY | Arkansas | SOUTHWESTERN BELL | RBOC | More |
| 901 | 581 | MEMPHIS | Tennessee | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | WIRELESS PROV | More |
| 902 | 581 | Barrington | Nova Scotia | Bragg Communications Inc. | | More |
| 903 | 581 | TYLER | Texas | SOUTHWESTERN BELL | RBOC | More |
| 904 | 581 | STARKE | Florida | 1ST POINT COMMUNICATIONS, LLC | | More |
| 905 | 581 | Hamilton | Ontario | Iristel Inc. | | More |
| 907 | 581 | UNALASKA | Alaska | INTERIOR TEL. CO., INC. | IND. TELCO | More |
| 908 | 581 | SOMERVILLE | New Jersey | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | WIRELESS PROV | More |
| 909 | 581 | CUCAMONGA | California | FRONTIER CALIFORNIA INC. | IND. TELCO | More |
| 910 | 581 | HOLLYRIDGE | North Carolina | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | WIRELESS PROV | More |
| 912 | 581 | SAVANNAH | Georgia | NEW CINGULAR WIRELESS PCS, LLC - GA | WIRELESS PROV | More |
| 914 | 581 | WESTCHESTER ZONE 8 | New York | COMMIO, LLC | | More |
| 915 | 581 | EL PASO NORTH | Texas | SOUTHWESTERN BELL | RBOC | More |
| 916 | 581 | LINCOLN | California | BANDWIDTH.COM CLEC, LLC - CA | | More |
| 917 | 581 | NEW YORK CITY ZONE | New York | LEVEL 3 COMMUNICATIONS, LLC - NY | CLEC | More |
| 918 | 581 | TULSA | Oklahoma | SOUTHWESTERN BELL | RBOC | More |
| 919 | 581 | GOLDSBORO | North Carolina | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 920 | 581 | FOND DU LAC | Wisconsin | OVATION COMMUNICATIONS OF WISCONSIN, INC. | CLEC | More |
| 928 | 581 | YUMA | Arizona | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | WIRELESS PROV | More |
| 929 | 581 | NWYRCYZN05 | New York | BANDWIDTH.COM CLEC, LLC - NY | | More |
| 931 | 581 | TULLAHOMA | Tennessee | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | WIRELESS PROV | More |
| 936 | 581 | HUNTSVILLE | Texas | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | WIRELESS PROV | More |
| 937 | 581 | DAYTON | Ohio | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
| 949 | 581 | EL TORO | California | PACIFIC BELL | RBOC | More |
| 951 | 581 | PERRIS | California | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 954 | 581 | FORT LAUDERDALE | Florida | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | RBOC | More |
| 956 | 581 | MISSION | Texas | SOUTHWESTERN BELL | RBOC | More |
| 970 | 581 | FORT COLLINS | Colorado | T-MOBILE USA, INC. | WIRELESS PROV | More |
| 972 | 581 | DALLAS | Texas | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | CLEC | More |
| 973 | 581 | WHIPPANY | New Jersey | VERIZON NEW JERSEY, INC. | RBOC | More |
| 978 | 581 | WILMINGTON | Massachusetts | ONVOY, LLC - MA | | More |
| 979 | 581 | KURTEN | Texas | AT&T WIRELESS SERVICES | WIRELESS PROV | More |
| 980 | 581 | ALBEMARLE | North Carolina | SUNCOM DBA T-MOBILE USA | PCS | More |
| 989 | 581 | OVID | Michigan | FRONTIER NORTH, INC. - MI | IND. TELCO | More |
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