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Phone Directory 312-744 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-744 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-7440###
312-7441###
312-7442###
312-7443###
312-7444###
312-7445###
312-7446###
312-7447###
312-7448###
312-7449###