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Phone Directory 312-819 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 819-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-819 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-8190###
312-8191###
312-8192###
312-8193###
312-8194###
312-8195###
312-8196###
312-8197###
312-8198###
312-8199###