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Phone Directory 312-455 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 455-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-455 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-4550###
312-4551###
312-4552###
312-4553###
312-4554###
312-4555###
312-4556###
312-4557###
312-4558###
312-4559###