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Phone Directory 773-521 Detail

State Major City Time Zone
Illinois Chicago Central

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Example: (773) 521-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
773-521 Chicago, IL Ameritech Illinois Cook Landline 10/15/1996

Other Series For Prefixes

773-5210###
773-5211###
773-5212###
773-5213###
773-5214###
773-5215###
773-5216###
773-5217###
773-5218###
773-5219###