Local Calling Guide

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NPA: 909 [Rate centres in NPA 909] [Dial plan for NPA 909]

NXX: 979

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-979 A Diamond Bar CA WLNTCAXFDS0  2319 FRONTIER CALIFORNIA INC. 730      
909-979 0 Diamond Bar CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2007-09-03   
909-979 1 Diamond Bar CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2008-11-23   
909-979 2 Diamond Bar CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-09-18   
909-979 3 Diamond Bar CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-12-10   
909-979 4 Diamond Bar CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2004-03-17   
909-979 5 Diamond Bar CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
909-979 6 Diamond Bar CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
909-979 7 Diamond Bar CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2006-10-17   
909-979 8 Diamond Bar CA LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2006-03-03   
909-979 9 Diamond Bar CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2010-07-04   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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