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Phone Directory 312-691 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-691 Chicago, IL Indiana Paging Ntwk Cook Cell Number 04/01/1997

Other Series For Prefixes

312-6910###
312-6911###
312-6912###
312-6913###
312-6914###
312-6915###
312-6916###
312-6917###
312-6918###
312-6919###