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Phone Directory 312-494 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 494-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-494 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-4940###
312-4941###
312-4942###
312-4943###
312-4944###
312-4945###
312-4946###
312-4947###
312-4948###
312-4949###