Local Calling Guide

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NPA: 712 [Rate centres in NPA 712] [Dial plan for NPA 712]

NXX: 354

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-354 A Charter Oak IA OMAHNENWXPX  221F ONVOY, LLC - IA 644      
712-354 1 Charter Oak IA   624H ONVOY SPECTRUM, LLC 644   2021-10-30   
712-354 2 Charter Oak IA   221F ONVOY, LLC - IA 644   2020-10-02   
712-354 3 Charter Oak IA   221F ONVOY, LLC - IA 644   2018-12-22   
712-354 4 Charter Oak IA   221F ONVOY, LLC - IA 644   2020-10-02   
712-354 5 Charter Oak IA   221F ONVOY, LLC - IA 644   2021-05-10   
712-354 6 Charter Oak IA   624H ONVOY SPECTRUM, LLC 644   2021-07-18   
712-354 7 Charter Oak IA   508J CENTURYLINK COMMUNICATIONS, LLC 644   2018-12-25   

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

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