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Lookup area code 312 details: major cities and timezone. View the 312 area code map in Illinois. Find the name of any phone number in area code 312.
Area code 312 is a telephone area code in the North American Numbering Plan for the city of Chicago, including downtown, the Chicago Loop, and its immediate environs. The numbering plan area is completely surrounded by area code 773, which serves the rest of Chicago.
Area code 312 is located in Illinois. Get the area’s map, cities covered, current time, prefixes, and dialing instructions.
Find 312 area code details including city, time zone, and map. Lookup area code 312 phone number, name, and location.
1 paź 2024 · 312 Area Code located in Illinois, including 16 cities, 3 counties, 1 time zone, map, Census demographics, and 779 active prefixes.
312 Area code map Where is the area code 312 located in Illinois, United States? Area Code 312 coverage is shown in green.
About area code 312: location, common spam callers, related area codes, and more. Includes 312 reverse phone lookup to identify spam callers.
