Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 442 [Rate centres in NPA 442] [Dial plan for NPA 442]

NXX: 345

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-345 A Holtville CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
442-345 0 Holtville CA   649C ONVOY, LLC - CA 732   2016-03-12   
442-345 1 Holtville CA   649C ONVOY, LLC - CA 732   2016-03-12   
442-345 2 Holtville CA   7147 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 732   2018-09-04   
442-345 3 Holtville CA   649C ONVOY, LLC - CA 732   2021-08-09   
442-345 4 Holtville CA   649C ONVOY, LLC - CA 732   2019-09-13   
442-345 5 Holtville CA   649C ONVOY, LLC - CA 732   2021-08-09   
442-345 6 Holtville CA   649C ONVOY, LLC - CA 732   2022-12-19   
442-345 7 Holtville CA   624H ONVOY SPECTRUM, LLC 732   2021-12-10   
442-345 8 Holtville CA   649C ONVOY, LLC - CA 732   2025-05-02   
442-345 9 Holtville CA   624H ONVOY SPECTRUM, LLC 732   2021-12-10   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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