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: 478

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-478 A El Centro CA ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732   2024-12-13   
442-478 0 El Centro CA SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2024-12-16   
442-478 3 El Centro CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2024-12-14   
442-478 4 El Centro CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2024-12-14   
442-478 5 El Centro CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2024-12-16   
442-478 9 El Centro CA ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732   2024-12-13   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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