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Phone Directory 312-602 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 602-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-602 Chicago, IL Broadwing Communications Cook Landline 05/10/1999

Other Series For Prefixes

312-6020###
312-6021###
312-6022###
312-6023###
312-6024###
312-6025###
312-6026###
312-6027###
312-6028###
312-6029###