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Phone Directory 312-983 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-983 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-9830###
312-9831###
312-9832###
312-9833###
312-9834###
312-9835###
312-9836###
312-9837###
312-9838###
312-9839###