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Phone Directory 312-567 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 567-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-567 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-5670###
312-5671###
312-5672###
312-5673###
312-5674###
312-5675###
312-5676###
312-5677###
312-5678###
312-5679###