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Phone Directory 773-637 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (773) 637-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-637 Chicago, IL Ameritech Illinois Cook Landline 10/15/1996

Other Series For Prefixes

773-6370###
773-6371###
773-6372###
773-6373###
773-6374###
773-6375###
773-6376###
773-6377###
773-6378###
773-6379###