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779 Area Code

State:Illinois
Major City:Rockford
Timezone:Central
Current Time:

History of area code 779

779 was first put in service March 17, 2007. It was created from area code 815.

Where is area code 779

Area code 779 serves northern Illinois except for the Chicago metro area. It includes the cities of Rockford, Joliet, and DeKalb. It is an overlay for area code 815 and serves the same area.

What time zone is area code 779?

The 779 area code is located in the Central timezone. The Central time zone is also known as America/Chicago

area code 779

779 area code map

Top 20 Counties in Area Code 779

CountyTotal Population% of 779% of County
Will, IL677,5605%65%
Winnebago, IL295,2664%100%
McHenry, IL308,7605%88%
LaSalle, IL113,92410%100%
Kankakee, IL113,4496%100%
DeKalb, IL105,1605%100%
Boone, IL54,1652%100%
Ogle, IL53,4977%100%
Grundy, IL50,0634%100%
Whiteside, IL58,4985%83%
Kendall, IL114,7361%42%
Stephenson, IL47,7115%100%
Livingston, IL38,9509%100%
Lee, IL36,0316%100%
Iroquois, IL29,7189%91%
Bureau, IL34,9785%73%
Jo Daviess, IL22,6785%100%
Carroll, IL15,3874%100%
Putnam, IL6,0061%93%
Ford, IL14,0811%31%

Top 50 Cities in Area Code 779

CityTotal Population% of 779% of City
Rockford, IL152,8711%100%
Joliet, IL147,4331%94%
DeKalb, IL43,8620%100%
Crystal Lake, IL40,7430%97%
Romeoville, IL39,6800%91%
Plainfield, IL39,5810%80%
Kankakee, IL27,5370%100%
McHenry, IL26,9920%100%
Freeport, IL25,6380%100%
Belvidere, IL25,5850%100%
Woodstock, IL24,7700%100%
New Lenox, IL24,3940%100%
Loves Park, IL23,9960%100%
Machesney Park, IL23,4990%100%
Lockport, IL24,8390%94%
Crest Hill, IL20,8370%100%
Ottawa, IL18,7680%100%
Bourbonnais, IL18,6310%100%
Sycamore, IL17,5190%100%
Frankfort, IL17,7820%96%
Bradley, IL15,8950%100%
Dixon, IL15,7330%100%
Shorewood, IL15,6150%100%
Sterling, IL15,3700%100%
Streator, IL13,7100%100%
Morris, IL13,6360%100%
Channahon, IL12,5600%100%
Pontiac, IL11,9310%100%
Minooka, IL10,9240%100%
Roscoe, IL10,7850%100%
Peru, IL10,2950%100%
LaSalle, IL9,6090%100%
Rochelle, IL9,5740%100%
Harvard, IL9,4470%100%
Frankfort Square, IL9,2760%100%
Rock Falls, IL9,2660%100%
Manteno, IL9,2040%100%
South Beloit, IL7,8920%100%
Rockton, IL7,6850%100%
Princeton, IL7,6600%100%
Marengo, IL7,6480%100%
Mendota, IL7,3720%100%
Manhattan, IL7,0510%100%
Bolingbrook, IL73,3660%9%
Johnsburg, IL6,3370%98%
Braidwood, IL6,1910%100%
Sandwich, IL7,4210%81%
Lakemoor, IL6,0170%99%
Wilmington, IL5,7240%100%
Spring Grove, IL5,7780%99%

Largest Landline Carriers in area code779

PrefixesCarrier
10%Peerless Network
8%Bandwidthcom Clec
7%Comco
6%Teleport America
4%Broadvox-clec
3%Sbc Internet Services
3%Local Access
19%Other

Largest Wireless Carriers in area code779

PrefixesCarrier
11%Verizon Wireless
8%Cricket
7%Sprint
3%T-mobile
1%Cingular
1%365 Wireless
1%Sbc Internet Services
1%Other

Prefixes in area code779

PrefixUsagePrimary CityCarrierIntroduced
(779) 200-wirelessRockfordVerizon Wireless01/18/2011
(779) 201-wirelessLa SalleVerizon Wireless03/15/2012
(779) 202-landlineGalenaTeleport Comms America03/06/2012
(779) 203-wirelessRockfordSprint10/13/2011
(779) 204-landlineVeronaBroadvox-clec03/19/2014
(779) 205-wirelessJolietCingular Wireless05/30/2012
(779) 206-wirelessJolietVerizon Wireless06/20/2012
(779) 207-wirelessRockfordVerizon Wireless09/28/2012
(779) 208-wirelessRockfordVerizon Wireless11/16/2012
(779) 209-landlineSandwichPeerless Network08/31/2012
(779) 210-landlineRockfordSbc Internet Services09/16/2011
(779) 212-wirelessDekalb365 Wireless03/13/2013
(779) 213-landlineOglesbyPeerless Network04/09/2013
(779) 214-landlineGalenaMediacom Telephony12/17/2009
(779) 215-landlineTonicaLocal Access04/09/2013
(779) 216-landlineFrankfortPeerless Network04/09/2013
(779) 218-landlineWatsekaPeerless Network04/09/2013
(779) 220-landlineCrystal LakeBandwidth.com05/25/2011
(779) 221-landlineRockfordBroadvox-clec04/02/2010
(779) 222-landlineDekalbLevel 3 Comms
(779) 225-wirelessJolietVerizon Wireless09/21/2011
(779) 226-landlinePoloComcast Phone Of Illinois DBA Comco04/24/2013
(779) 227-wirelessMetro PCS07/01/2014
(779) 228-landlineMazonPeerless Network04/10/2013
(779) 229-landlineSpring ValleyComcast Phone Of Illinois DBA Comco05/07/2013
(779) 232-landlineWilmingtonTeleport Comms America06/07/2007
(779) 233-wirelessJolietSprint07/21/2011
(779) 234-landlinePlainfieldLocal Access08/01/2013
(779) 235-wirelessCrescent CitySbc Internet Services02/04/2011
(779) 236-wirelessKankakeeSprint07/27/2011
(779) 240-wirelessT-mobile USA06/11/2014
(779) 245-wirelessSterlingIowa Wireless Services, LP07/14/2008
(779) 251-landlineDixonCenturylink Comms04/01/2014
(779) 279-wirelessJolietCricket Comms10/29/2008
(779) 300-wirelessRockfordSprint02/17/2011
(779) 301-wirelessT-mobile USA06/11/2014
(779) 324-landlineFrankfortBandwidth.com08/17/2010
(779) 333-landlineFrankfortNeutral Tandem04/11/2013
(779) 348-landlineRockfordTeleport Comms America06/13/2007
(779) 368-landlineNew MilfordComcast Phone Of Illinois DBA Comco08/21/2007
(779) 379-wirelessJolietCricket Comms10/29/2008
(779) 382-landlineGenoaCharter Fiberlink05/07/2007
(779) 400-landlineDekalbYmax Comms Corp.02/17/2011
(779) 423-landlineRockfordComcast Phone Of Illinois DBA Comco08/08/2007
(779) 429-landlineWilmingtonSbc Internet Services11/13/2008
(779) 432-landlineSheffieldMtco Comms03/27/2007
(779) 435-landlineJoliet11/13/2006
(779) 444-landlineWonder LakeBandwidth.com08/17/2010
(779) 456-wirelessJolietT-mobile USA01/09/2008
(779) 475-landlineBeloitCharter Fiberlink03/27/2007
(779) 500-landlineRockfordTeleport Comms America03/16/2011
(779) 529-landlineMantenoBandwidth.com08/17/2010
(779) 537-wirelessRockfordVerizon Wireless03/27/2007
(779) 545-landlineMt MorrisComcast Phone Of Illinois DBA Comco08/08/2007
(779) 548-landlineMarengoBandwidth.com08/16/2010
(779) 552-landlineBelvidereDigital Network Access Comms06/04/2007
(779) 696-landlineRockfordMcleodusa Telecom Services08/18/2010
(779) 702-wirelessT-mobile USA06/11/2014
(779) 703-wirelessJolietT-mobile USA10/07/2013
(779) 704-landlineMchenryMci Worldcom Comms10/31/2013
(779) 770-wirelessRockfordCricket Comms11/18/2008
(779) 771-wirelessRockfordCricket Comms11/18/2008
(779) 772-wirelessRockfordCricket Comms11/18/2008
(779) 774-landlineRockfordTds Metrocom02/01/2012
(779) 777-wirelessDekalbCricket Comms10/22/2008
(779) 800-landlineCrystal LakeNeutral Tandem04/11/2013
(779) 803-landlineNew LenoxBandwidth.com08/16/2013
(779) 861-wirelessDixonVerizon Wireless05/26/2010
(779) 875-wirelessJolietSprint07/12/2007
(779) 903-landlineBraidwoodBroadvox-clec07/29/2013
(779) 994-landlineCrystal LakePeerless Network04/10/2013
(779) 999-landlineNewarkPeerless Network09/24/2010