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Phone Directory 312-356 Detail

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Illinois Chicago Central

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Example: (312) 356-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-356 Chicago, IL Ameritech Illinois Cook Landline 01/14/2000

Other Series For Prefixes

312-3560###
312-3561###
312-3562###
312-3563###
312-3564###
312-3565###
312-3566###
312-3567###
312-3568###
312-3569###