Area codes 815 and 779 - Wikipedia
It also serves the Joliet area and some of Chicago’s western and northwestern suburbs. 815 was one of the four original Illinois area codes assigned in 1947. Area code 779 was added to the same …
779 Area Code - Location, Time, Map, Cities and Census Data
Jan 1, 2026 · 779 Area Code located in Illinois, including 128 cities, 23 counties, 1 time zone, map, Census demographics, and 300 active prefixes.
Area Code 779 phone numbers - Whitepages
Browse area code 779 phone numbers, prefixes and exchanges. The 779 area code serves Chicago, Rockford, DeKalb, Willowbrook, Hickory Hills, covering 25 ZIP codes in 13 counties.
779 Area Code - Map, Phone Lookup, Time Zone - Wirefly
Find 779 area code details including city, time zone, and map. Lookup area code 779 phone number, name, and location.
779 Area Code - Location, Map, Current Time, Prefixes
Area code 779 is located in Illinois. Get the area’s map, cities covered, current time, prefixes, and dialing instructions.
Where is 779 Area Code? Understanding Northern Illinois's Dialing …
Sep 9, 2025 · The 779 area code is an overlay area code serving the same geographical region as the 815 area code. This region encompasses a large portion of northern Illinois, excluding the Quad …
779 area code — information, time zone, map
3 days ago · 779 is an area code located in the state of Illinois, US. The largest city it serves is Rockford. Find out where 779 area code zone from, which states, counties and cities it covers. Get the most …
779 Area Code ☎️ Location, Time Zone & Phone Lookup - Anywho
The 779 Area Code is located in the state of Illinois. Area Code 779 is one of the 269 three-digit telephone area codes in the USA. It covers roughly 3,089,977 unique phone numbers and 881,444 …
Where Is The 779 Area Code Located? City Guide | State | Location
Nov 21, 2025 · Area code 779 covers the quickly growing city of Joliet, Illinois and is also used for the nearby city of Rockford. The 779 area code was put into effect in 2007 as an overlay to the 815 area …
Area Code 779 - Map, time zone, and phone lookup - CallerCenter
About area code 779: location, common spam callers, related area codes, and more. Includes 779 reverse phone lookup to identify spam callers.