Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 858 [Rate centres in NPA 858] [Dial plan for NPA 858]

NXX: 923

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-923 A Rancho Santa Fe CA SNDGCA023KD  7379 MATRIX TELECOM, LLC. SII TNCI - CA 732      
858-923 0 Rancho Santa Fe CA   649C ONVOY, LLC - CA 732      
858-923 1 Rancho Santa Fe CA SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732      
858-923 2 Rancho Santa Fe CA   649C ONVOY, LLC - CA 732      
858-923 3 Rancho Santa Fe CA   6529 T-MOBILE USA, INC. 732   2021-03-17   
858-923 4 Rancho Santa Fe CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2020-03-02   
858-923 5 Rancho Santa Fe CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2020-03-02   
858-923 6 Rancho Santa Fe CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2020-01-17   
858-923 7 Rancho Santa Fe CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2016-02-22   
858-923 8 Rancho Santa Fe CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2016-02-22   
858-923 9 Rancho Santa Fe CA ESCNCAKYGT0  6529 T-MOBILE USA, INC. 732   2015-06-27   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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