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: 490

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-490 A Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-490 0 Ontario CA   576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2016-08-17   
909-490 1 Ontario CA   899D METROPCS NETWORKS, LLC 730   2016-08-16   
909-490 2 Ontario CA   899D METROPCS NETWORKS, LLC 730   2016-08-16   
909-490 3 Ontario CA   649C ONVOY, LLC - CA 730   2016-08-16   
909-490 4 Ontario CA   649C ONVOY, LLC - CA 730   2016-08-16   
909-490 5 Ontario CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2016-08-18   
909-490 6 Ontario CA   6529 T-MOBILE USA, INC. 730   2016-10-08   
909-490 7 Ontario CA   6529 T-MOBILE USA, INC. 730   2016-10-08   
909-490 8 Ontario CA   6529 T-MOBILE USA, INC. 730   2016-08-15   
909-490 9 Ontario CA   6529 T-MOBILE USA, INC. 730   2016-08-15   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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