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Phone Directory 312-988 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-988 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-9880###
312-9881###
312-9882###
312-9883###
312-9884###
312-9885###
312-9886###
312-9887###
312-9888###
312-9889###