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Phone Directory 312-707 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-707 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-7070###
312-7071###
312-7072###
312-7073###
312-7074###
312-7075###
312-7076###
312-7077###
312-7078###
312-7079###