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Phone Directory 312-326 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 326-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-326 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-3260###
312-3261###
312-3262###
312-3263###
312-3264###
312-3265###
312-3266###
312-3267###
312-3268###
312-3269###