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Phone Directory 312-922 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 922-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-922 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-9220###
312-9221###
312-9222###
312-9223###
312-9224###
312-9225###
312-9226###
312-9227###
312-9228###
312-9229###