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: 358

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-358 A Ramona CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732   2021-07-17   
442-358 4 Ramona CA   506J TWILIO INTERNATIONAL INC 732   2021-08-17   
442-358 6 Ramona CA   6010 NEW CINGULAR WIRELESS PCS, LLC 732   2022-02-24   
442-358 7 Ramona CA   6529 T-MOBILE USA, INC. 732   2021-07-17   
442-358 8 Ramona CA   6529 T-MOBILE USA, INC. 732   2021-07-17   
442-358 9 Ramona CA   6529 T-MOBILE USA, INC. 732   2021-07-17   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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