Local Calling Guide

Area code/prefix search

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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
712-658 A HLBRIAXORS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      
712-658 1 HLBRIAXORS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      
712-658 2 HLBRIAXORS0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      
712-658 3 OMAHNENWXPX  221F ONVOY, LLC - IA 644   2021-10-30   
712-658 4 CRRLIABUDS0  156C BTC, INC. - IA 644   2022-04-02   
712-658 5 OMAHNENWXPX  221F ONVOY, LLC - IA 644   2021-05-21   
712-658 9 HLBRIAXORP0  1170 WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS 644      

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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