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Phone Directory 312-738 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-738 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-7380###
312-7381###
312-7382###
312-7383###
312-7384###
312-7385###
312-7386###
312-7387###
312-7388###
312-7389###