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Phone Directory 312-845 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-845 Chicago, IL Ameritech Illinois Cook Landline 11/11/2003

Other Series For Prefixes

312-8450###
312-8451###
312-8452###
312-8453###
312-8454###
312-8455###
312-8456###
312-8457###
312-8458###
312-8459###