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Phone Directory 312-385 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-385 Chicago, IL Ameritech Illinois Cook Landline 01/25/1998

Other Series For Prefixes

312-3850###
312-3851###
312-3852###
312-3853###
312-3854###
312-3855###
312-3856###
312-3857###
312-3858###
312-3859###