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Phone Directory 312-355 Detail

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Illinois Chicago Central

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Example: (312) 355-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-355 Chicago, IL Ameritech Illinois Cook Landline 07/04/1995

Other Series For Prefixes

312-3550###
312-3551###
312-3552###
312-3553###
312-3554###
312-3555###
312-3556###
312-3557###
312-3558###
312-3559###