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Phone Directory 312-456 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-456 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-4560###
312-4561###
312-4562###
312-4563###
312-4564###
312-4565###
312-4566###
312-4567###
312-4568###
312-4569###