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Phone Directory 815-663 Detail

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Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
815-663 Spring Valley, IL Frontier North Bureau Landline 02/04/1994

Other Series For Prefixes

815-6630###
815-6631###
815-6632###
815-6633###
815-6634###
815-6635###
815-6636###
815-6637###
815-6638###
815-6639###