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Phone Directory 312-413 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 413-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-413 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-4130###
312-4131###
312-4132###
312-4133###
312-4134###
312-4135###
312-4136###
312-4137###
312-4138###
312-4139###