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Phone Directory 773-873 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (773) 873-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-873 Chicago, IL Ameritech Illinois Cook Landline 10/15/1996

Other Series For Prefixes

773-8730###
773-8731###
773-8732###
773-8733###
773-8734###
773-8735###
773-8736###
773-8737###
773-8738###
773-8739###