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Phone Directory 312-348 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (312) 348-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-348 Chicago, IL Neutral Tandem-illinois Cook Landline 11/14/2003

Other Series For Prefixes

312-3480###
312-3481###
312-3482###
312-3483###
312-3484###
312-3485###
312-3486###
312-3487###
312-3488###
312-3489###