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Phone Directory 815-477 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
815-477 Crystal Lake, IL Ameritech Illinois Mchenry Landline 02/04/1994

Other Series For Prefixes

815-4770###
815-4771###
815-4772###
815-4773###
815-4774###
815-4775###
815-4776###
815-4777###
815-4778###
815-4779###