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Phone Directory 815-578 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
815-578 Mchenry, IL Ameritech Illinois Mchenry Landline 01/14/2000

Other Series For Prefixes

815-5780###
815-5781###
815-5782###
815-5783###
815-5784###
815-5785###
815-5786###
815-5787###
815-5788###
815-5789###