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Phone Directory 312-739 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-739 Chicago, IL Ameritech Illinois Cook Landline 11/11/2003

Other Series For Prefixes

312-7390###
312-7391###
312-7392###
312-7393###
312-7394###
312-7395###
312-7396###
312-7397###
312-7398###
312-7399###