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Major cities and communities served by area code 815. Find out where 815 area code zone from, which states, counties and cities it covers. Get the most exact information on time zones here.
- 815 Map
815 Area code map Where is the area code 815 located in...
- 815 Map
815 Area code map Where is the area code 815 located in Illinois, United States? Area Code 815 coverage is shown in green.
To find information on a specific area code, use the area code lookup that makes it easy to find an area code by number and gives detailed information including city/state, timezone, and area code maps.
Sep 1, 2024 · The 815 Area Code Map above shows the geographic region it covers. It has a single overlay (779) that serves the same geographic area. Combined, this Area Code (and overlays), serves a population of 8,925,047. Area Code 815 has a single Timezone of Central (GMT -06:00).
Area codes 815 and 779 are telephone area codes in the North American Numbering Plan (NANP) for most of northern Illinois outside the Quad Cities areas. 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 set up in 1947.
About area code 815: location, common spam callers, related area codes, and more. Includes 815 reverse phone lookup to identify spam callers.
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How many area codes are there in California?
The state of California was divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, and 916, for the southern, central, and northern parts of the state, respectively. [1] As of July 2023, California has 38 active area codes.
