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Phone Directory 312-606 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 606-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-606 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-6060###
312-6061###
312-6062###
312-6063###
312-6064###
312-6065###
312-6066###
312-6067###
312-6068###
312-6069###