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Area Code 312 Information

State: IL - Illinois
Active: True

Area code 312 encompasses the Chicago Loop and surrounding areas in Chicago, Illinois. It is roughly bounded by Armitage Avenue on the north, Western Avenue on the west, Lake Michigan on the east, and 35th Street on the south.

Related Area Codes: 630, 773, 847, 872

Get other Illinois area codes »

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AT&T: AT&T Wireless Plans

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