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Phone Directory 773-285 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-285 Chicago, IL Ameritech Illinois Cook Landline 10/15/1996

Other Series For Prefixes

773-2850###
773-2851###
773-2852###
773-2853###
773-2854###
773-2855###
773-2856###
773-2857###
773-2858###
773-2859###