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779 area code

Area code 779 is in Illinois (IL), USA and some of the main locations covered are Joliet, Dekalb, Crystal Lake, .. (jump to city list below).

Area code 779 has been in service since March 17, 2007 and is an overlay code part of overlay complex 815/779 (overlaying area codes cover the same geographic area).

05:19:46 AM is the current time in area code 779 (Central Time).

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Map of area code 779

More Illinois area codes

NPANXX1 Area served2 Date3
779-200 Rockford 1/18/2011
779-201 La Salle 3/15/2012
779-202 Galena 3/6/2012
779-203 Rockford 10/13/2011
779-204 Verona 3/19/2014
779-205 Joliet 5/30/2012
779-206 Joliet 6/20/2012
779-207 Rockford
779-208 Rockford 11/16/2012
779-209 Sandwich 8/31/2012
779-210 Rockford 9/16/2011
779-212 De Kalb 3/13/2013
779-213 Oglesby 4/9/2013
779-214 Galena 12/17/2009
779-215 Tonica 4/9/2013
779-216 Frankfort 4/9/2013
779-218 Watseka 4/9/2013
779-220 Crystal Lake 5/25/2011
779-221 Rockford 4/2/2010
779-222 Sycamore 8/5/2010
779-223 Onarga 3/23/2016
779-225 Joliet 9/21/2011
779-226 Polo 4/24/2013
779-227 Joliet 7/1/2014
779-228 Mazon 4/10/2013
779-229 Depue 5/7/2013
779-230 Joliet 9/28/2016
779-231 Joliet 12/21/2015
779-232 Wilmington 6/7/2007
779-233 Joliet 7/21/2011
779-234 Plainfield 8/1/2013
779-235 Crescent City 2/4/2011
779-236 Kankakee 7/27/2011
779-237 Streator 1/8/2018
779-238 Rockford 4/4/2017
779-239 Princeton 1/14/2016
779-240 Kankakee 6/11/2014
779-241 Morris 6/1/2017
779-242 Joliet 10/5/2017
779-243 Frankfort 10/5/2017
779-244 Mchenry 10/5/2017
779-245 Sterling 7/14/2008
779-246 Rochelle 10/23/2017
779-247 Woodstock 12/1/2017
779-248 Galena 6/3/2016
779-249 Dwight 2/22/2018
779-250 Sterling 2/27/2018
779-251 Dixon 4/1/2014
779-252 Plainfield 1/6/2016
779-253 South Beloit 10/7/2014
779-254 Frankfort 9/1/2015
779-255 De Kalb 5/16/2018
779-256 Rockford 6/5/2018
779-257 Wilmington 7/11/2018
779-258 Herscher 8/27/2018
779-259 Manteno 8/27/2018
779-260 Joliet 10/8/2018
779-261 Fairbury 11/30/2018
779-262 Oglesby 12/5/2018
779-263 Plainfield 1/2/2018
779-264 Kankakee 10/7/2019
779-265 Mchenry 10/8/2019
779-266 Lanark 12/9/2019
779-267 Joliet 1/17/2020
779-268 St Anne 2/6/2020
779-269 Rockford 2/10/2020
779-270 De Kalb 2/19/2020
779-271 Lanark 4/29/2020
779-272 Rockford 5/1/2020
779-273 Danforth 5/28/2020
779-274 Rockford 6/26/2020
779-275 Rockford 7/28/2020
779-276 De Kalb 7/28/2020
779-277 Flanagan 8/12/2020
779-278 Grand Ridge 3/18/2021
779-279 Joliet 10/29/2008
779-280 Donovan 8/25/2020
779-281 Toluca 8/12/2020
779-282 Martinton 8/25/2020
779-283 Richmond 8/25/2020
779-284 Sheldon 8/25/2020
779-285 Sheridan 8/25/2020
779-286 Spring Grove 8/25/2020
779-287 Union 3/24/2016
779-288 Beaverville 6/2/2021
779-289 South Beloit 9/1/2020
779-290 Milford 9/2/2020
779-291 Wonder Lake 9/4/2020
779-292 Onarga 9/4/2020
779-293 New Lenox 9/4/2020
779-294 Harding 9/4/2020
779-295 Mazon 9/4/2020
779-296 Long Point 9/8/2020
779-297 Sterling 9/15/2020
779-298 Forrest 9/15/2020
779-299 Wenona 9/17/2020
779-300 Rockford 2/17/2011
779-301 Kankakee 6/11/2014
779-302 Woodstock 2/27/2015
779-303 Plainfield
779-304 Rutland 9/17/2020
779-305 Reddick 9/17/2020
779-306 Pontiac 9/17/2020
779-307 Lostant 9/17/2020
779-308 Chatsworth 9/17/2020
779-310 New Milford 9/17/2020
779-313 Cherry Valley 9/17/2020
779-314 Rock Cut 9/17/2020
779-315 Roscoe 9/17/2020
779-316 Creston 9/17/2020
779-317 Kirkland 9/17/2020
779-318 Malta 9/17/2020
779-319 Maple Park 9/17/2020
779-320 Monroe Center 9/17/2020
779-321 Shabbona 9/17/2020
779-322 Thomas 9/17/2020
779-323 Rockford 9/30/2020
779-324 Frankfort 8/17/2010
779-325 Franklin Grove 11/25/2020
779-326 Dwight 12/10/2020
779-327 Warren 6/10/2021
779-328 Hanover 6/10/2021
779-329 Mendota 6/10/2021
779-330 Belvidere 6/22/2021
779-332 Durand 6/10/2021
779-333 Frankfort 4/11/2013
779-334 De Kalb 11/4/2020
779-335 Rockford 6/23/2021
779-336 Woodstock 2/10/2021
779-337 Woodland 6/24/2021
779-338 Crescent City 6/24/2021
779-339 Frankfort 10/19/2021
779-340 Coal City 11/22/2021
779-341 Joliet 12/29/2021
779-342 Dwight 7/14/2021
779-343 German Valley 11/4/2021
779-344 Seward 11/4/2021
779-345 Byron 7/27/2020
779-346 Capron 9/18/2020
779-347 Winslow 11/4/2021
779-348 Rockford 6/13/2007
779-349 Spring Valley 1/11/2022
779-351 Rockford 2/25/2022
779-352 Waterman 1/28/2022
779-353 Forreston 3/31/2022
779-354 Davis 3/31/2022
779-355 Harmon 3/31/2022
779-356 Crystal Lake 7/14/2020
779-357 Leaf River 4/12/2022
779-368 New Milford 8/21/2007
779-377 South Beloit 9/13/2021
779-379 Joliet 10/29/2008
779-382 Genoa 5/7/2007
779-389 Garden Prairie 4/19/2021
779-399 Kinsman 1/8/2021
779-400 De Kalb 2/17/2011
779-410 Stockton 3/30/2021
779-423 Rockford 8/8/2007
779-426 Manhattan 1/13/2022
779-429 Wilmington 11/13/2008
779-432 Sheffield 3/27/2007
779-435 Joliet 11/13/2006
779-444 Wonder Lake 8/17/2010
779-456 Joliet 1/9/2008
779-463 Morris 3/23/2022
779-465 Braidwood 10/10/2019
779-466 Emington 1/26/2022
779-475 South Beloit 3/27/2007
779-479 Graymont 4/18/2021
779-499 Freeport 9/13/2021
779-500 Rockford 3/16/2011
779-513 Rockford 10/16/2015
779-529 Manteno 8/17/2010
779-537 Rockford 3/27/2007
779-545 Mount Morris 8/8/2007
779-548 Marengo 8/16/2010
779-552 Belvidere 6/4/2007
779-577 Rockford 9/13/2021
779-579 Kempton 4/18/2021
779-599 Paw Paw 7/14/2020
779-600 Cissna Park 8/8/2019
779-601 La Salle 9/10/2014
779-624 Momence 1/13/2022
779-625 Woodstock 2/23/2022
779-639 Mchenry 1/13/2022
779-666 Rockford 10/3/2017
779-675 Ohio 1/13/2022
779-677 Freeport 7/27/2020
779-678 Rockford 1/12/2021
779-679 Magnolia 4/18/2021
779-696 Rockford 8/18/2010
779-699 South Beloit 7/17/2020
779-701 Kankakee 1/28/2015
779-702 Joliet 6/11/2014
779-703 Joliet 10/7/2013
779-704 Mchenry 10/31/2013
779-706 Sandwich 2/24/2015
779-707 Joliet 4/21/2015
779-710 Rockford 3/18/2021
779-713 Woodstock 5/22/2015
779-717 Spring Valley 10/15/2015
779-722 Ashton 9/18/2020
779-729 Lena 4/13/2021
779-732 La Salle 2/10/2021
779-739 Forrest 2/14/2022
779-746 Cissna Park 1/13/2022
779-749 Steward 4/13/2021
779-758 Joliet 10/11/2019
779-759 Sycamore 4/13/2021
779-766 Depue 7/14/2020
779-770 Rockford 11/18/2008
779-771 Rockford 11/18/2008
779-772 Rockford 11/18/2008
779-774 Rockford 2/1/2012
779-775 De Kalb 9/13/2021
779-777 De Kalb 10/22/2008
779-778 Winnebago 5/28/2020
779-783 Stockland 1/13/2022
779-788 Pecatonica 1/28/2021
779-789 Rockton 4/19/2021
779-797 Rockford 9/23/2021
779-799 Coleta 7/27/2020
779-800 Crystal Lake 4/11/2013
779-801 Kankakee 9/7/2016
779-803 New Lenox 8/16/2013
779-804 Pontiac 2/24/2015
779-809 Fulton 3/28/2022
779-832 Cedar Point 1/13/2022
779-837 Elwood 1/7/2022
779-855 Forrest 3/31/2021
779-861 Dixon 5/26/2010
779-867 Rockford 4/12/2021
779-875 Joliet 7/12/2007
779-877 Verona 7/14/2020
779-879 Streator 4/18/2021
779-888 Rockford 1/28/2015
779-895 Rockford 2/1/2022
779-899 Lisbon 7/14/2020
779-900 Frankfort 9/17/2019
779-901 Marengo 4/30/2015
779-902 De Kalb 3/19/2021
779-903 Braidwood 7/29/2013
779-904 Freeport 3/24/2021
779-910 De Kalb 3/18/2021
779-915 Woodstock 11/16/2016
779-922 Hooppole 7/27/2020
779-927 Marengo 1/13/2022
779-931 Sandwich 10/27/2016
779-933 Hinckley 7/27/2020
779-939 Joliet 2/3/2016
779-946 Granville 7/14/2020
779-970 Rockford 9/14/2015
779-977 Harvard 7/14/2020
779-978 Sandwich 6/4/2015
779-979 Piper City 4/19/2021
779-990 Forrest 4/12/2021
779-991 Leland 8/12/2020
779-994 Crystal Lake 4/10/2013
779-997 Plattville 1/13/2022
779-999 Newark 9/24/2010
  1. The NPA is the Numbering Plan Area (area code) and NXX is the central office code.
  2. For 'Area served' we list the rate center. In the North American Numbering Plan a rate center is a geographic area used to determine local calling boundaries for billing purposes. Its name is generally a locality, often not the only one served by an NPA-NXX combination.
  3. The assignment date. If no date is shown the exchange code was assigned before 2001.

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List of cities in area code 779

City4 County Time5
Alden McHenry C
Amboy Lee C
Ancona Livingston C
Apple River Jo Daviess C
Arlington Bureau C
Aroma Park Kankakee C
Ashkum Iroquois C
Ashton Lee C
Baileyville Ogle C
Beaverville Iroquois C
Belvidere Boone C
Blackstone Livingston C
Bonfield Kankakee C
Bourbonnais Kankakee C
Braceville Grundy C
Bradley Kankakee C
Braidwood Will C
Buckingham Kankakee C
Bureau Bureau C
Byron Ogle C
Cabery Ford C
Caledonia Boone C
Campus Livingston C
Capron Boone C
Cedar Point La Salle C
Cedarville Stephenson C
Chadwick Carroll C
Chana Ogle C
Channahon Will C
Chatsworth Livingston C
Chebanse Iroquois C
Chenoa McLean C
Cherry Bureau C
Cherry Valley Winnebago C
Cissna Park Iroquois C
Clare Dekalb C
Claytonville Iroquois C
Clifton Iroquois C
Coal City Grundy C
Compton Lee C
Cornell Livingston C
Cortland Dekalb C
Crescent City Iroquois C
Creston Ogle C
Crystal Lake McHenry C
Cullom Livingston C
Dakota Stephenson C
Dalzell Bureau C
Dana La Salle C
Danforth Iroquois C
Davis Stephenson C
Davis Junction Ogle C
Deer Grove Whiteside C
Dekalb Dekalb C
Depue Bureau C
Dixon Lee C
Donovan Iroquois C
Dover Bureau C
Durand Winnebago C
Dwight Livingston C
Earlville La Salle C
East Dubuque Jo Daviess C
Eldena Lee C
Eleroy Stephenson C
Elizabeth Jo Daviess C
Elwood Will C
Emington Livingston C
Esmond Dekalb C
Essex Kankakee C
Fairbury Livingston C
Flanagan Livingston C
Forrest Livingston C
Forreston Ogle C
Frankfort Will C
Franklin Grove Lee C
Freeport Stephenson C
Fulton Whiteside C
Galena Jo Daviess C
Galt Whiteside C
Garden Prairie Boone C
Gardner Grundy C
Genoa Dekalb C
German Valley Stephenson C
Gilman Iroquois C
Goodwine Iroquois C
Grand Ridge La Salle C
Grant Park Kankakee C
Granville Putnam C
Graymont Livingston C
Hanover Jo Daviess C
Harmon Lee C
Harvard McHenry C
Hebron McHenry C
Hennepin Putnam C
Herscher Kankakee C
Hinckley Dekalb C
Holcomb Ogle C
Homer Glen Will C
Hooppole Henry C
Hopkins Park Kankakee C
Iroquois Iroquois C
Joliet Will C
Kankakee Kankakee C
Kasbeer Bureau C
Kempton Ford C
Kent Stephenson C
Kingston Dekalb C
Kinsman Grundy C
Kirkland Dekalb C
La Moille Bureau C
La Salle La Salle C
Ladd Bureau C
Lanark Carroll C
Leaf River Ogle C
Lee Lee C
Lee Center Lee C
Leland La Salle C
Lena Stephenson C
Leonore La Salle C
Lindenwood Ogle C
Lockport Will C
Long Point Livingston C
Lostant La Salle C
Loves Park Winnebago C
Lyndon Whiteside C
Machesney Park Winnebago C
Magnolia Putnam C
Malden Bureau C
Malta Dekalb C
Manhattan Will C
Manlius Bureau C
Manteno Kankakee C
Maple Park Kane C
Marengo McHenry C
Mark Putnam C
Marseilles La Salle C
Martinton Iroquois C
Mazon Grundy C
Mc Connell Stephenson C
Mc Nabb Putnam C
McHenry McHenry C
Mendota La Salle C
Milford Iroquois C
Milledgeville Carroll C
Millington Kendall C
Minooka Grundy C
Momence Kankakee C
Monroe Center Ogle C
Morris Grundy C
Morrison Whiteside C
Mount Carroll Carroll C
Mount Morris Ogle C
Nachusa Lee C
New Bedford Bureau C
New Lenox Will C
Newark Kendall C
Nora Jo Daviess C
Odell Livingston C
Oglesby La Salle C
Ohio Bureau C
Onarga Iroquois C
Orangeville Stephenson C
Oregon Ogle C
Ottawa La Salle C
Papineau Iroquois C
Paw Paw Lee C
Pearl City Stephenson C
Pecatonica Winnebago C
Peru La Salle C
Piper City Ford C
Plainfield Will C
Polo Ogle C
Pontiac Livingston C
Poplar Grove Boone C
Princeton Bureau C
Prophetstown Whiteside C
Putnam Putnam C
Ransom La Salle C
Reddick Kankakee C
Richmond McHenry C
Ridott Stephenson C
Ringwood McHenry C
Rochelle Ogle C
Rock City Stephenson C
Rock Falls Whiteside C
Rockford Winnebago C
Rockton Winnebago C
Romeoville Will C
Roscoe Winnebago C
Rutland La Salle C
Sandwich Dekalb C
Saunemin Livingston C
Savanna Carroll C
Scales Mound Jo Daviess C
Seatonville Bureau C
Seneca La Salle C
Serena La Salle C
Seward Winnebago C
Shabbona Dekalb C
Shannon Carroll C
Sheffield Bureau C
Sheldon Iroquois C
Sheridan La Salle C
Shirland Winnebago C
Somonauk Dekalb C
South Beloit Winnebago C
South Wilmington Grundy C
Spring Grove McHenry C
Spring Valley Bureau C
St Anne Kankakee C
Standard Putnam C
Sterling Whiteside C
Steward Lee C
Stillman Valley Ogle C
Stockland Iroquois C
Stockton Jo Daviess C
Strawn Livingston C
Streator La Salle C
Sublette Lee C
Sycamore Dekalb C
Tampico Whiteside C
Thomson Carroll C
Tiskilwa Bureau C
Toluca Marshall C
Tonica La Salle C
Triumph La Salle C
Troy Grove La Salle C
Union McHenry C
Union Hill Kankakee C
Utica La Salle C
Van Orin Bureau C
Verona Grundy C
Walnut Bureau C
Warren Jo Daviess C
Waterman Dekalb C
Watseka Iroquois C
Wedron La Salle C
Wellington Iroquois C
Wenona Marshall C
West Brooklyn Lee C
Wilmington Will C
Winnebago Winnebago C
Winslow Stephenson C
Wonder Lake McHenry C
Woodland Iroquois C
Woodstock McHenry C
Woosung Ogle C
Wyanet Bureau C
  1. Listed in the table above are most, often not all places served by area code 779. When two or more places with the same name are located in the same state we list the largest one only. Cities with population over 50,000 are displayed in bold text.
  2. C stands for Central Time (currently 05:19:46 AM).

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