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Phone Directory 312-566 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-566 Chicago, IL Ameritech Illinois Cook Landline 01/10/1996

Other Series For Prefixes

312-5660###
312-5661###
312-5662###
312-5663###
312-5664###
312-5665###
312-5666###
312-5667###
312-5668###
312-5669###