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Phone Directory 312-669 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-669 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-6690###
312-6691###
312-6692###
312-6693###
312-6694###
312-6695###
312-6696###
312-6697###
312-6698###
312-6699###