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Phone Directory 312-854 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-854 Chicago, IL Rcn Telecom Services Of Illinois Cook Landline 01/25/1998

Other Series For Prefixes

312-8540###
312-8541###
312-8542###
312-8543###
312-8544###
312-8545###
312-8546###
312-8547###
312-8548###
312-8549###