Area Code | Prefix | City/Switch Name (Click for city search) | State/Prov. Area Map | Telephone Company Web link | Telco Type | More Info |
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779 | 200 | ROCKFORD | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
779 | 201 | LA SALLE | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
779 | 202 | GALENA | Illinois | TELEPORT COMMUNICATIONS GROUP - CHICAGO | CAP | More |
779 | 203 | ROCKFORD | Illinois | SPRINT SPECTRUM L.P. | PCS | More |
779 | 204 | VERONA | Illinois | BROADVOX-CLEC, LLC - IL | | More |
779 | 205 | JOLIET | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
779 | 206 | JOLIET | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
779 | 207 | ROCKFORD | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
779 | 208 | ROCKFORD | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
779 | 209 | SANDWICH | Illinois | PEERLESS NETWORK OF ILLINOIS, LLC - IL | | More |
779 | 210 | ROCKFORD | Illinois | SBC INTERNET SERVICES, INC. | | More |
779 | 212 | DE KALB | Illinois | 365 WIRELESS, LLC | | More |
779 | 213 | OGLESBY | Illinois | PEERLESS NETWORK OF ILLINOIS, LLC - IL | | More |
779 | 214 | GALENA | Illinois | MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL | | More |
779 | 215 | TONICA | Illinois | LOCAL ACCESS LLC - IL | | More |
779 | 216 | FRANKFORT | Illinois | PEERLESS NETWORK OF ILLINOIS, LLC - IL | | More |
779 | 218 | WATSEKA | Illinois | PEERLESS NETWORK OF ILLINOIS, LLC - IL | | More |
779 | 220 | CRYSTAL LK | Illinois | BANDWIDTH.COM CLEC, LLC - IL | | More |
779 | 221 | ROCKFORD | Illinois | BROADVOX-CLEC, LLC - IL | | More |
779 | 222 | HARMON | Illinois | LEVEL 3 COMMUNICATIONS, LLC - IL | CLEC | More |
779 | 223 | ONARGA | Illinois | NEUTRAL TANDEM-ILLINOIS, LLC - IL | | More |
779 | 225 | JOLIET | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
779 | 226 | POLO | Illinois | COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL | CLEC | More |
779 | 227 | JOLIET | Illinois | METRO PCS, INC. | | More |
779 | 228 | MAZON | Illinois | PEERLESS NETWORK OF ILLINOIS, LLC - IL | | More |
779 | 229 | DEPUE | Illinois | COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL | CLEC | More |
779 | 231 | JOLIET | Illinois | MCI WORLDCOM COMMUNICATIONS, INC. - IL | CLEC | More |
779 | 232 | WILMINGTON | Illinois | TELEPORT COMMUNICATIONS GROUP - CHICAGO | CAP | More |
779 | 233 | JOLIET | Illinois | SPRINT SPECTRUM L.P. | PCS | More |
779 | 234 | PLAINFIELD | Illinois | LOCAL ACCESS LLC - IL | | More |
779 | 235 | CRESCENTCY | Illinois | SBC INTERNET SERVICES, INC. | | More |
779 | 236 | KANKAKEE | Illinois | SPRINT SPECTRUM L.P. | PCS | More |
779 | 239 | PRINCETON | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
779 | 240 | KANKAKEE | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
779 | 245 | STERLING | Illinois | IOWA WIRELESS SERVICES, LP | PCS | More |
779 | 251 | DIXON | Illinois | QWEST COMMUNICATIONS COMPANY, LLC | CLEC | More |
779 | 252 | PLAINFIELD | Illinois | METRO FIBERNET, LLC - IL | | More |
779 | 253 | SO BELOIT | Illinois | METRO PCS, INC. | | More |
779 | 254 | FRANKFORT | Illinois | COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL | CLEC | More |
779 | 256 | ROCKFORD | Illinois | SPRINT SPECTRUM L.P. | PCS | More |
779 | 279 | JOLIET | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
779 | 300 | ROCKFORD | Illinois | SPRINT SPECTRUM L.P. | PCS | More |
779 | 301 | KANKAKEE | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
779 | 302 | WOODSTOCK | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
779 | 324 | FRANKFORT | Illinois | BANDWIDTH.COM CLEC, LLC - IL | | More |
779 | 333 | FRANKFORT | Illinois | NEUTRAL TANDEM-ILLINOIS, LLC - IL | | More |
779 | 348 | ROCKFORD | Illinois | TELEPORT COMMUNICATIONS GROUP - CHICAGO | CAP | More |
779 | 368 | NEWMILFORD | Illinois | COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL | CLEC | More |
779 | 379 | JOLIET | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
779 | 382 | GENOA | Illinois | CHARTER FIBERLINK - ILLINOIS, LLC - IL | | More |
779 | 400 | DE KALB | Illinois | YMAX COMMUNICATIONS CORP. - IL | | More |
779 | 423 | ROCKFORD | Illinois | COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL | CLEC | More |
779 | 429 | WILMINGTON | Illinois | SBC INTERNET SERVICES, INC. | | More |
779 | 432 | SHEFFIELD | Illinois | MTCO COMMUNICATIONS, INC. | CLEC | More |
779 | 435 | JOLIET | Illinois | AMERITECH ILLINOIS | RBOC | More |
779 | 444 | WONDERLAKE | Illinois | BANDWIDTH.COM CLEC, LLC - IL | | More |
779 | 456 | JOLIET | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
779 | 475 | SO BELOIT | Illinois | CHARTER FIBERLINK - ILLINOIS, LLC - IL | | More |
779 | 500 | ROCKFORD | Illinois | TELEPORT COMMUNICATIONS GROUP - CHICAGO | CAP | More |
779 | 513 | ROCKFORD | Illinois | QWEST COMMUNICATIONS COMPANY, LLC | CLEC | More |
779 | 529 | MANTENO | Illinois | BANDWIDTH.COM CLEC, LLC - IL | | More |
779 | 537 | ROCKFORD | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
779 | 545 | MT MORRIS | Illinois | COMCAST PHONE OF ILLINOIS, LLC DBA COMCO - IL | CLEC | More |
779 | 548 | MARENGO | Illinois | BANDWIDTH.COM CLEC, LLC - IL | | More |
779 | 552 | BELVIDERE | Illinois | DIGITAL NETWORK ACCESS COMMUNICATIONS, INC. - IL | | More |
779 | 601 | LA SALLE | Illinois | BANDWIDTH.COM CLEC, LLC - IL | | More |
779 | 696 | ROCKFORD | Illinois | MCLEODUSA TELECOMMUNICATIONS SERVICES, INC.- IL | CLEC | More |
779 | 701 | KANKAKEE | Illinois | BANDWIDTH.COM CLEC, LLC - IL | | More |
779 | 702 | JOLIET | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
779 | 703 | JOLIET | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
779 | 704 | MCHENRY | Illinois | MCI WORLDCOM COMMUNICATIONS, INC. - IL | CLEC | More |
779 | 706 | SANDWICH | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
779 | 707 | JOLIET | Illinois | BANDWIDTH.COM CLEC, LLC - IL | | More |
779 | 713 | WOODSTOCK | Illinois | T-MOBILE USA, INC. | WIRELESS PROV | More |
779 | 717 | SPRING VLY | Illinois | PEERLESS NETWORK OF ILLINOIS, LLC - IL | | More |
779 | 770 | ROCKFORD | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
779 | 771 | ROCKFORD | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
779 | 772 | ROCKFORD | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
779 | 774 | ROCKFORD | Illinois | TDS METROCOM INC.-IL | CLEC | More |
779 | 777 | DE KALB | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
779 | 800 | CRYSTAL LK | Illinois | NEUTRAL TANDEM-ILLINOIS, LLC - IL | | More |
779 | 803 | NEW LENOX | Illinois | BANDWIDTH.COM CLEC, LLC - IL | | More |
779 | 804 | PONTIAC | Illinois | MCI WORLDCOM COMMUNICATIONS, INC. - IL | CLEC | More |
779 | 861 | DIXON | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
779 | 875 | JOLIET | Illinois | SPRINT SPECTRUM L.P. | PCS | More |
779 | 888 | ROCKFORD | Illinois | NEUTRAL TANDEM-ILLINOIS, LLC - IL | | More |
779 | 901 | MARENGO | Illinois | BANDWIDTH.COM CLEC, LLC - IL | | More |
779 | 903 | BRAIDWOOD | Illinois | BROADVOX-CLEC, LLC - IL | | More |
779 | 939 | JOLIET | Illinois | NEW CINGULAR WIRELESS PCS, LLC - IL | WIRELESS PROV | More |
779 | 958 | | Illinois | AMERITECH ILLINOIS | RBOC | More |
779 | 959 | | Illinois | AMERITECH ILLINOIS | RBOC | More |
779 | 970 | ROCKFORD | Illinois | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | WIRELESS PROV | More |
779 | 978 | SANDWICH | Illinois | UNITED STATES CELLULAR CORP. - ILLINOIS | WIRELESS PROV | More |
779 | 994 | CRYSTAL LK | Illinois | PEERLESS NETWORK OF ILLINOIS, LLC - IL | | More |
779 | 999 | NEWARK | Illinois | PEERLESS NETWORK OF ILLINOIS, LLC - IL | | More |
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