Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 909 [Rate centres in NPA 909] [Dial plan for NPA 909]

NXX: 914

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-914 A Diamond Bar CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730      
909-914 0 Diamond Bar CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2020-12-19   
909-914 1 Diamond Bar CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2021-03-20   
909-914 2 Diamond Bar CA   649C ONVOY, LLC - CA 730   2021-07-30   
909-914 3 Diamond Bar CA   649C ONVOY, LLC - CA 730   2021-07-30   
909-914 4 Diamond Bar CA   649C ONVOY, LLC - CA 730   2021-07-30   
909-914 5 Diamond Bar CA   649C ONVOY, LLC - CA 730   2021-07-30   
909-914 6 Diamond Bar CA   7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2021-08-23   
909-914 8 Diamond Bar CA   6529 T-MOBILE USA, INC. 730   2021-03-22   
909-914 9 Diamond Bar CA   6529 T-MOBILE USA, INC. 730   2021-03-22   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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