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Phone Directory 815-721 Detail

State Major City Time Zone
Illinois Chicago Central

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
815-721 Rockford, IL AT&T Local Winnebago Landline 08/20/2000

Other Series For Prefixes

815-7210###
815-7211###
815-7212###
815-7213###
815-7214###
815-7215###
815-7216###
815-7217###
815-7218###
815-7219###