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Phone Directory 312-368 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-368 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-3680###
312-3681###
312-3682###
312-3683###
312-3684###
312-3685###
312-3686###
312-3687###
312-3688###
312-3689###