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Phone Directory 312-902 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 902-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-902 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-9020###
312-9021###
312-9022###
312-9023###
312-9024###
312-9025###
312-9026###
312-9027###
312-9028###
312-9029###