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: 374

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-374 A Fallbrook CA   939H COMMIO, LLC 732      
442-374 0 Fallbrook CA   939H COMMIO, LLC 732   2024-01-20   
442-374 1 Fallbrook CA   939H COMMIO, LLC 732   2024-01-20   
442-374 2 Fallbrook CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2025-06-27   
442-374 3 Fallbrook CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2026-02-06   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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