Local Calling Guide

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

NXX: 409

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
712-409 A Silver City IA OMAHNENWXPX  221F ONVOY, LLC - IA 644      
712-409 0 Silver City IA   221F ONVOY, LLC - IA 644   2021-04-23   
712-409 1 Silver City IA   221F ONVOY, LLC - IA 644   2021-04-23   
712-409 2 Silver City IA   423H AIRUS, INC - IA 644   2021-10-23   
712-409 3 Silver City IA   624H ONVOY SPECTRUM, LLC 644   2024-06-07   
712-409 4 Silver City IA   156C BTC, INC. - IA 644   2021-05-15   
712-409 5 Silver City IA   9877 LEVEL 3 COMMUNICATIONS, LLC - IA 644   2023-01-08   
712-409 6 Silver City IA   6570 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 644   2024-08-23   
712-409 7 Silver City IA   221F ONVOY, LLC - IA 644   2019-10-25   
712-409 8 Silver City IA   221F ONVOY, LLC - IA 644   2021-05-10   
712-409 9 Silver City IA   073H TELNYX LLC 644   2019-12-01   

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

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