Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 563 [Rate centres in NPA 563] [Dial plan for NPA 563]

NXX: 674

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
563-674 A Delmar IA DLMRIAXORS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 634      
563-674 1 Delmar IA   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 634      
563-674 2 Delmar IA   624H ONVOY SPECTRUM, LLC 634   2024-12-19   
563-674 3 Delmar IA   221F ONVOY, LLC - IA 634   2020-10-06   
563-674 4 Delmar IA   1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 634      
563-674 6 Delmar IA   221F ONVOY, LLC - IA 634   2020-06-27   
563-674 7 Delmar IA   508J CENTURYLINK COMMUNICATIONS, LLC 634   2016-10-05   
563-674 8 Delmar IA   221F ONVOY, LLC - IA 634   2021-03-14   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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