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Phone Directory 312-552 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
312-552 Chicago, IL Ameritech Illinois Cook Landline 02/04/1994

Other Series For Prefixes

312-5520###
312-5521###
312-5522###
312-5523###
312-5524###
312-5525###
312-5526###
312-5527###
312-5528###
312-5529###