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Phone Directory 312-297 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-297 Chicago, IL Ameritech Illinois Cook Landline 02/11/1995

Other Series For Prefixes

312-2970###
312-2971###
312-2972###
312-2973###
312-2974###
312-2975###
312-2976###
312-2977###
312-2978###
312-2979###