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Phone Directory 773-856 Detail

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Illinois Chicago Central

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Example: (773) 856-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-856 Chicago, IL Rcn Telecom Services Of Illinois Cook Landline 11/20/1998

Other Series For Prefixes

773-8560###
773-8561###
773-8562###
773-8563###
773-8564###
773-8565###
773-8566###
773-8567###
773-8568###
773-8569###