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Phone Directory 312-986 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-986 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-9860###
312-9861###
312-9862###
312-9863###
312-9864###
312-9865###
312-9866###
312-9867###
312-9868###
312-9869###