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: 441

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-441 A Barstow: Yermo DA CA VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2024-01-23   
442-441 1 Barstow: Yermo DA CA   073H TELNYX LLC 730   2021-02-27   
442-441 2 Barstow: Yermo DA CA   649C ONVOY, LLC - CA 730   2020-01-14   
442-441 3 Barstow: Yermo DA CA   649C ONVOY, LLC - CA 730   2020-01-14   
442-441 4 Barstow: Yermo DA CA   649C ONVOY, LLC - CA 730   2020-08-28   
442-441 5 Barstow: Yermo DA CA   649C ONVOY, LLC - CA 730   2020-08-28   
442-441 6 Barstow: Yermo DA CA   624H ONVOY SPECTRUM, LLC 730   2025-01-30   
442-441 7 Barstow: Yermo DA CA   649C ONVOY, LLC - CA 730   2021-08-09   
442-441 8 Barstow: Yermo DA CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2021-10-22   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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