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Phone Directory 312-750 Detail

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Illinois Chicago Central

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Example: (312) 750-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-750 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-7500###
312-7501###
312-7502###
312-7503###
312-7504###
312-7505###
312-7506###
312-7507###
312-7508###
312-7509###