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Phone Directory 312-344 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 344-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-344 Chicago, IL Ameritech Illinois Cook Landline 07/06/1997

Other Series For Prefixes

312-3440###
312-3441###
312-3442###
312-3443###
312-3444###
312-3445###
312-3446###
312-3447###
312-3448###
312-3449###