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: 240

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-240 A Fremont-Newark: Greenleaf DA CA OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-240 0 Fremont-Newark: Greenleaf DA CA SNFCCA01GT0  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2014-06-26   
510-240 1 Fremont-Newark: Greenleaf DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-02-14   
510-240 2 Fremont-Newark: Greenleaf DA CA OKLECAZVGT0  5562 METROPCS, INC. 722   2008-12-21   
510-240 3 Fremont-Newark: Greenleaf DA CA OKLDCAEBDS0  7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
510-240 4 Fremont-Newark: Greenleaf DA CA SNFCCA01DS5  7421 AT&T - LOCAL 722   2002-09-03   
510-240 5 Fremont-Newark: Greenleaf DA CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2008-10-23   
510-240 6 Fremont-Newark: Greenleaf DA CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2009-11-22   
510-240 7 Fremont-Newark: Greenleaf DA CA   515J IP HORIZON LLC 722   2003-10-12   
510-240 8 Fremont-Newark: Greenleaf DA CA SNJUCACLDS1  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2016-10-14   
510-240 9 Fremont-Newark: Greenleaf DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-02-26   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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