Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Richland, IA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
319-456 A RCLDIAXORS1  1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-456 0   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-456 1   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-456 2   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-456 3   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-456 4   221F ONVOY, LLC - IA 634   2020-06-27   
319-456 5   221F ONVOY, LLC - IA 634   2021-03-13   
319-456 6   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-456 7   508J CENTURYLINK COMMUNICATIONS, LLC 634   2016-10-07   
319-456 8   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-456 9   1178 WINDSTREAM IOWA COMMUNICATIONS, INC. 634      
319-566 A DVNPIADTXZX  516J TON80 COMMUNICATIONS, LLC 634      
319-566 1   624H ONVOY SPECTRUM, LLC 634   2024-12-19   
319-566 5   145J TERRA NOVA TELECOM INC. 634   2025-05-31   
319-566 6   516J TON80 COMMUNICATIONS, LLC 634   2022-05-14   

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

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