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Phone Directory 773-278 Detail

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Illinois Chicago Central

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Example: (773) 278-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-278 Chicago, IL Ameritech Illinois Cook Landline 10/15/1996

Other Series For Prefixes

773-2780###
773-2781###
773-2782###
773-2783###
773-2784###
773-2785###
773-2786###
773-2787###
773-2788###
773-2789###