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Phone Directory 773-643 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-643 Chicago, IL Ameritech Illinois Cook Landline 10/15/1996

Other Series For Prefixes

773-6430###
773-6431###
773-6432###
773-6433###
773-6434###
773-6435###
773-6436###
773-6437###
773-6438###
773-6439###