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: 517

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-517 A Red Oak IA OMAKNEYWDS1  423H AIRUS, INC - IA 644      
712-517 0 Red Oak IA   073H TELNYX LLC 644   2019-06-22   
712-517 1 Red Oak IA   423H AIRUS, INC - IA 644   2019-06-21   
712-517 2 Red Oak IA   985E BANDWIDTH.COM CLEC, LLC - IA 644   2021-08-21   
712-517 3 Red Oak IA   423H AIRUS, INC - IA 644   2021-10-23   
712-517 4 Red Oak IA   985E BANDWIDTH.COM CLEC, LLC - IA 644   2021-12-11   
712-517 5 Red Oak IA   221F ONVOY, LLC - IA 644   2019-09-20   
712-517 6 Red Oak IA   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 644   2021-08-20   
712-517 7 Red Oak IA   221F ONVOY, LLC - IA 644   2020-10-02   
712-517 8 Red Oak IA   221F ONVOY, LLC - IA 644   2021-04-23   
712-517 9 Red Oak IA   221F ONVOY, LLC - IA 644   2021-04-23   

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

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