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Phone Directory 773-379 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (773) 379-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-379 Chicago, IL Ameritech Illinois Cook Landline 10/15/1996

Other Series For Prefixes

773-3790###
773-3791###
773-3792###
773-3793###
773-3794###
773-3795###
773-3796###
773-3797###
773-3798###
773-3799###