Local Calling Guide

Area code/prefix search

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NPA: 563 [Rate centres in NPA 563] [Dial plan for NPA 563]

NXX: 341

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
563-341 A Dubuque IA DUBQIAUS1MD  6266 UNITED STATES CELLULAR - IA 634      
563-341 0 Dubuque IA   6266 UNITED STATES CELLULAR - IA 634   2022-11-04   
563-341 1 Dubuque IA   221F ONVOY, LLC - IA 634   2023-08-11   
563-341 2 Dubuque IA   221F ONVOY, LLC - IA 634   2023-08-11   
563-341 3 Dubuque IA   490J DISH WIRELESS, LLC 634   2023-05-05   
563-341 4 Dubuque IA   508J CENTURYLINK COMMUNICATIONS, LLC 634   2026-01-01   
563-341 5 Dubuque IA   221F ONVOY, LLC - IA 634   2023-08-11   
563-341 6 Dubuque IA   221F ONVOY, LLC - IA 634   2023-08-11   
563-341 7 Dubuque IA   985E BANDWIDTH.COM CLEC, LLC - IA 634   2022-11-24   
563-341 8 Dubuque IA   985E BANDWIDTH.COM CLEC, LLC - IA 634   2022-11-24   
563-341 9 Dubuque IA   985E BANDWIDTH.COM CLEC, LLC - IA 634   2022-11-24   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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