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Phone Directory 312-328 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-328 Chicago, IL Ameritech Illinois Cook Landline 10/11/1997

Other Series For Prefixes

312-3280###
312-3281###
312-3282###
312-3283###
312-3284###
312-3285###
312-3286###
312-3287###
312-3288###
312-3289###