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: 409

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-409 A Calexico CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732      
442-409 0 Calexico CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2023-10-30   
442-409 1 Calexico CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2025-10-17   
442-409 2 Calexico CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2023-10-30   
442-409 3 Calexico CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2025-12-19   
442-409 4 Calexico CA   145J TERRA NOVA TELECOM INC. 732   2025-11-23   
442-409 6 Calexico CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2023-10-30   
442-409 8 Calexico CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2024-01-01   
442-409 9 Calexico CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2023-07-31   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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