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Phone Directory 312-715 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 715-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-715 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-7150###
312-7151###
312-7152###
312-7153###
312-7154###
312-7155###
312-7156###
312-7157###
312-7158###
312-7159###