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Phone Directory 773-778 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (773) 778-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-778 Chicago, IL Ameritech Illinois Cook Landline 10/15/1996

Other Series For Prefixes

773-7780###
773-7781###
773-7782###
773-7783###
773-7784###
773-7785###
773-7786###
773-7787###
773-7788###
773-7789###