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: 472

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-472 A San Marcos CA SNDICAETAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 732   2024-10-24   
442-472 0 San Marcos CA   6529 T-MOBILE USA, INC. 732   2025-09-24   
442-472 1 San Marcos CA   6529 T-MOBILE USA, INC. 732   2025-09-24   
442-472 2 San Marcos CA   6529 T-MOBILE USA, INC. 732   2025-09-24   
442-472 8 San Marcos CA   649C ONVOY, LLC - CA 732   2025-10-27   
442-472 9 San Marcos CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2024-10-25   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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