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: 331

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-331 A Ontario CA SNANCALWDS0  7262 XO CALIFORNIA, INC. 730      
909-331 0 Ontario CA SNANCAPCCM3  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2004-05-31   
909-331 1 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2002-12-13   
909-331 2 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2002-12-13   
909-331 3 Ontario CA SNANCALWDS0  7262 XO CALIFORNIA, INC. 730      
909-331 4 Ontario CA LSANCA54DS0  8782 ALLEGIANCE TELECOM, INC. - CA 730   2001-07-30   
909-331 5 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2002-12-04   
909-331 6 Ontario CA RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2003-07-16   
909-331 7 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2002-12-15   
909-331 8 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2002-12-13   
909-331 9 Ontario CA RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2002-12-13   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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