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Phone Directory 815-566 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
815-566 Belvidere, IL Level 3 Communications Boone Landline 06/21/2002

Other Series For Prefixes

815-5660###
815-5661###
815-5662###
815-5663###
815-5664###
815-5665###
815-5666###
815-5667###
815-5668###
815-5669###