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Area Code (779) Illinois, USA

Area Code:779
State: Illinois (IL)
Country:United States
Main Cities:Rockford, IL
Joliet, IL
Dekalb, IL
Frankfort, IL
Crystal Lake, IL
Galena, IL

Area Code (779) serves 34 Cities:

Rockford, Joliet, Dekalb, Frankfort, Crystal Lake, Galena, Dixon, Wilmington, Sterling, New Milford, Sheffield, Tonica, Beloit, Watseka, Mt Morris, Polo, Belvidere, Spring Valley, New Lenox, Plainfield, La Salle, Newark, Kankakee, Verona, Sandwich, Genoa, Oglesby, Wonder Lake, Manteno, Marengo, Mazon, Mchenry, Braidwood and Crescent City located in the state of Illinois, United States.

Area Code (779) Illinois Counties:

Boone, Bureau, Dekalb, Grundy, Iroquois, Jo Daviess, Kankakee, Kendall, La Salle, Lee, Mchenry, Ogle, Whiteside, Will and Winnebago.
Area Code 779 List of Prefixes
PrefixLocationCarrier
(779) 200 RockfordILCellco Partnership DBA Verizon
(779) 201 La SalleILCellco Partnership DBA Verizon
(779) 202 GalenaILTeleport Communications America
(779) 203 RockfordILSprint Spectrum L.P.
(779) 204 VeronaILBroadvox - CLEC
(779) 205 JolietILNew Cingular Wireless PCS, LLC
(779) 206 JolietILCellco Partnership DBA Verizon
(779) 207 RockfordILCellco Partnership DBA Verizon
(779) 208 RockfordILCellco Partnership DBA Verizon
(779) 209 SandwichILPeerless Network of Illinois
(779) 210 RockfordILSBC Internet Services, Inc.
(779) 212 DekalbIL365
(779) 213 OglesbyILPeerless Network of Illinois
(779) 214 GalenaILMediacom Telephony of Illinois
(779) 215 TonicaILLocal Access LLC
(779) 216 FrankfortILPeerless Network of Illinois
(779) 218 WatsekaILPeerless Network of Illinois
(779) 220 Crystal LakeILBandwidth.com - CLEC
(779) 221 RockfordILBroadvox - CLEC
(779) 222 DekalbILLevel 3 Communications
(779) 225 JolietILCellco Partnership DBA Verizon
(779) 226 PoloILComcast Phone of Illinois DBA Comco
(779) 228 MazonILPeerless Network of Illinois
(779) 229 Spring ValleyILComcast Phone of Illinois DBA Comco
(779) 232 WilmingtonILTeleport Communications America
(779) 233 JolietILSprint Spectrum L.P.
(779) 234 PlainfieldILLocal Access LLC
(779) 235 Crescent CityILSBC Internet Services, Inc.
(779) 236 KankakeeILSprint Spectrum L.P.
(779) 245 SterlingILIowa Wireless Services, Lp
(779) 251 DixonILCenturylink Communications LLC
(779) 279 JolietILCricket Communications
(779) 300 RockfordILSprint Spectrum L.P.
(779) 324 FrankfortILBandwidth.com - CLEC
(779) 333 FrankfortILNeutral Tandem-illinois
(779) 348 RockfordILTeleport Communications America
(779) 368 New MilfordILComcast Phone of Illinois DBA Comco
(779) 379 JolietILCricket Communications
(779) 382 GenoaILCharter Fiberlink - Illinois
(779) 400 DekalbILYMAX Communications Corp.
(779) 423 RockfordILComcast Phone of Illinois DBA Comco
(779) 429 WilmingtonILSBC Internet Services, Inc.
(779) 432 SheffieldILMtco Communications
(779) 435 JolietILAmeritech Illinois
(779) 444 Wonder LakeILBandwidth.com - CLEC
(779) 456 JolietILT-Mobile USA
(779) 475 BeloitILCharter Fiberlink - Illinois
(779) 500 RockfordILTeleport Communications America
(779) 529 MantenoILBandwidth.com - CLEC
(779) 537 RockfordILCellco Partnership DBA Verizon
(779) 545 Mt MorrisILComcast Phone of Illinois DBA Comco
(779) 548 MarengoILBandwidth.com - CLEC
(779) 552 BelvidereILDigital Network Access Communications
(779) 696 RockfordILMcleodusa Telecommunications Services - IL
(779) 703 JolietILT-Mobile USA
(779) 704 MchenryILMCI Worldcom Communications
(779) 770 RockfordILCricket Communications
(779) 771 RockfordILCricket Communications
(779) 772 RockfordILCricket Communications
(779) 774 RockfordILTds Metrocom Inc. - IL
(779) 777 DekalbILCricket Communications
(779) 800 Crystal LakeILNeutral Tandem-illinois
(779) 803 New LenoxILBandwidth.com - CLEC
(779) 861 DixonILCellco Partnership DBA Verizon
(779) 875 JolietILSprint Spectrum L.P.
(779) 903 BraidwoodILBroadvox - CLEC
(779) 994 Crystal LakeILPeerless Network of Illinois
(779) 999 NewarkILPeerless Network of Illinois