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Phone Directory 773-277 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-277 Chicago, IL Ameritech Illinois Cook Landline 10/15/1996

Other Series For Prefixes

773-2770###
773-2771###
773-2772###
773-2773###
773-2774###
773-2775###
773-2776###
773-2777###
773-2778###
773-2779###