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: 487

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-487 A Oceanside: Carlsbad DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732      
442-487 1 Oceanside: Carlsbad DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2025-10-04   
442-487 3 Oceanside: Carlsbad DA CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2025-10-04   

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

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