Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 425

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-425 A Mallard IA MLRDIAXORP0  1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 630      
712-425 0 Mallard IA   444G AUREON COMMUNICATIONS, LLC 630   2013-10-07   
712-425 1 Mallard IA   1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 630      
712-425 2 Mallard IA   221F ONVOY, LLC - IA 630   2021-05-05   
712-425 3 Mallard IA   1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 630      
712-425 4 Mallard IA   221F ONVOY, LLC - IA 630   2021-10-31   
712-425 7 Mallard IA   508J CENTURYLINK COMMUNICATIONS, LLC 630   2016-12-24   
712-425 8 Mallard IA   624H ONVOY SPECTRUM, LLC 630   2024-03-17   
712-425 9 Mallard IA   1167 WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH 630      

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

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