Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

San Bernardino, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
909-521 6 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2011-03-28   
909-521 7 ONTRCAXPXBY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2011-04-25   
909-521 8 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-06-03   
909-521 9 LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2011-06-03   
909-522 A RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2024-02-09   
909-522 0 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2005-02-28   
909-522 1 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2005-02-28   
909-522 2 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2005-02-28   
909-522 3 ANHMCAHLDS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 730   2011-06-22   
909-522 4 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-02-28   
909-522 5 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2017-11-10   
909-522 6 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-02-28   
909-522 7 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2005-02-28   
909-522 8 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2005-02-28   
909-522 9 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2005-02-27   
909-531 A BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730      
909-531 0 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-09-25   
909-531 1 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-09-25   
909-531 2 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-09-25   
909-531 3 BLTNCAADGMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 730   2014-09-25   
909-531 4 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2014-10-15   
909-531 5 ONTRCAXPXPY  649C ONVOY, LLC - CA 730   2014-10-15   
909-531 6 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2015-06-16   
909-531 7 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2015-06-16   
909-531 8 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2015-06-16   
909-531 9 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2015-05-19   
909-534 A RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-534 0 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-534 1 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-534 2 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-534 3 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-534 4 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-534 5 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-534 6 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-534 7 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-534 8 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-534 9 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-553 A RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-556 A RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-567 A RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730      
909-567 0 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2007-05-07   
909-567 1 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2007-05-07   
909-567 2 ONTRCAXPXBY  576C TIME WARNER CBL INFO SVCS (CA) DBA TIME WARNER CAB 730   2007-06-06   
909-567 3 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2006-10-16   
909-567 4 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2006-10-27   
909-567 5 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2006-08-20   
909-567 6 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2006-08-11   
909-567 7 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2006-07-11   
909-567 8 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2006-05-15   
909-567 9 RVSDCAYAGT1  6529 T-MOBILE USA, INC. 730   2006-05-15   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 >>

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.