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Phone Directory 312-506 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 506-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-506 Chicago, IL Cimco Communications Cook Landline 05/24/2004

Other Series For Prefixes

312-5060###
312-5061###
312-5062###
312-5063###
312-5064###
312-5065###
312-5066###
312-5067###
312-5068###
312-5069###