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: 240

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-240 A Ramona CA SNDGCA0287Z  598J FIVE9, INC. 732   2024-01-18   
442-240 0 Ramona CA SNDGCA0287Z  598J FIVE9, INC. 732   2024-01-18   
442-240 1 Ramona CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2025-03-10   
442-240 2 Ramona CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2025-03-10   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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