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Phone Directory 312-537 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 537-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-537 Chicago, IL Ameritech Illinois Cook Landline 04/15/1996

Other Series For Prefixes

312-5370###
312-5371###
312-5372###
312-5373###
312-5374###
312-5375###
312-5376###
312-5377###
312-5378###
312-5379###