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Phone Directory 312-346 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 346-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-346 Chicago, IL Ameritech Illinois Cook Landline 11/11/2003

Other Series For Prefixes

312-3460###
312-3461###
312-3462###
312-3463###
312-3464###
312-3465###
312-3466###
312-3467###
312-3468###
312-3469###