Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-221 A Richmond CA OKLDCA61CM0  6664 SPRINT SPECTRUM L.P. 722   2007-03-25   
510-221 0 Richmond CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-10-28   
510-221 1 Richmond CA   6664 SPRINT SPECTRUM L.P. 722   2009-10-12   
510-221 2 Richmond CA   7453 U.S. TELEPACIFIC CORP. - CA 722   2008-11-16   
510-221 3 Richmond CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-10-28   
510-221 4 Richmond CA   7262 XO CALIFORNIA, INC. 722   2010-09-20   
510-221 5 Richmond CA   9262 UTILITY TELECOM GROUP, LLC - CA 722   2009-07-02   
510-221 6 Richmond CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-12-13   
510-221 7 Richmond CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2007-04-16   
510-221 8 Richmond CA   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2007-04-16   
510-221 9 Richmond CA   6664 SPRINT SPECTRUM L.P. 722   2009-10-12   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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