Local Calling Guide

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NPA: 858 [Rate centres in NPA 858] [Dial plan for NPA 858]

NXX: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
858-310 A Rancho Santa Fe CA SNDGCA0269Z  506J TWILIO INTERNATIONAL, INC. 732      
858-310 0 Rancho Santa Fe CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2021-07-28   
858-310 1 Rancho Santa Fe CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2021-07-28   
858-310 2 Rancho Santa Fe CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2023-10-30   
858-310 3 Rancho Santa Fe CA SNDGCA0269Z  506J TWILIO INTERNATIONAL, INC. 732   2021-07-17   
858-310 4 Rancho Santa Fe CA SNDGCA0260Z  624H ONVOY SPECTRUM, LLC 732   2021-12-10   
858-310 5 Rancho Santa Fe CA SNDGCA0260Z  624H ONVOY SPECTRUM, LLC 732   2021-12-10   
858-310 6 Rancho Santa Fe CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2023-07-16   
858-310 7 Rancho Santa Fe CA SNDGCA51CM3  6010 NEW CINGULAR WIRELESS PCS, LLC 732   2022-02-24   
858-310 8 Rancho Santa Fe CA SNDGCA0260Z  624H ONVOY SPECTRUM, LLC 732   2021-07-29   
858-310 9 Rancho Santa Fe CA ESCNCAKY2MD  6529 T-MOBILE USA, INC. 732   2021-05-01   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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