Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 530 [Rate centres in NPA 530] [Dial plan for NPA 530]

NXX: 375

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-375 A Westwood CA CHICCACWCM1  6010 NEW CINGULAR WIRELESS PCS, LLC 724      
530-375 0 Westwood CA CHICCACWCM1  6010 NEW CINGULAR WIRELESS PCS, LLC 724      
530-375 6 Westwood CA   145J TERRA NOVA TELECOM INC. 724   2025-05-16   
530-375 7 Westwood CA CHICCACWCM1  6010 NEW CINGULAR WIRELESS PCS, LLC 724      

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

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