Local Calling Guide

Area code/prefix search

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NPA: 510 [Rate centres in NPA 510] [Dial plan for NPA 510]

NXX: 431

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
510-431 A Fremont-Newark: Greenleaf DA CA OKLDCAOL1MD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 722      
510-431 0 Fremont-Newark: Greenleaf DA CA OKLDCAOL1MD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 722      
510-431 1 Fremont-Newark: Greenleaf DA CA OKLDCAOL1MD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 722      
510-431 2 Fremont-Newark: Greenleaf DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2010-12-13   
510-431 3 Fremont-Newark: Greenleaf DA CA SNFCCA01XGX  516C AT&T CORP. 722   2006-06-30   
510-431 4 Fremont-Newark: Greenleaf DA CA OKLDCAOL1MD  8690 GLOBAL CROSSING LOCAL SERVICES, INC. - CA 722      
510-431 5 Fremont-Newark: Greenleaf DA CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2001-09-03   
510-431 6 Fremont-Newark: Greenleaf DA CA OKLDCAMP1MD  4733 PAETEC COMMUNICATIONS, INC. - CA 722   2009-11-19   
510-431 7 Fremont-Newark: Greenleaf DA CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2009-12-18   
510-431 8 Fremont-Newark: Greenleaf DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-10-10   
510-431 9 Fremont-Newark: Greenleaf DA CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-12-05   

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

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