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
909-841 1 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-841 2 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-841 3 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-841 4 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-841 5 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-841 6 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-841 7 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-841 8 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-841 9 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730      
909-844 A RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-844 0   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-844 1   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-844 2   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-844 3   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-844 4   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-844 5   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-844 6   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-844 7   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-844 8   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-844 9   6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-849 A RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-849 0 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-10-23   
909-849 1 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-10-23   
909-849 2 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-10-23   
909-849 3 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-10-23   
909-849 4 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-10-23   
909-849 5 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-10-23   
909-849 6 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-10-23   
909-849 7 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-10-23   
909-849 8 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-10-23   
909-849 9 RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730   2020-10-23   
909-856 A RVSDCALBCM4  6010 NEW CINGULAR WIRELESS PCS, LLC 730      
909-884 A SNBRCAXK88E  2319 FRONTIER CALIFORNIA INC. 730      
909-885 A SNBRCAXK88E  2319 FRONTIER CALIFORNIA INC. 730      
909-888 A SNBRCAXK88E  2319 FRONTIER CALIFORNIA INC. 730      
909-889 A SNBRCAXK88E  2319 FRONTIER CALIFORNIA INC. 730      
909-890 A SNBRCAXLDS0  2319 FRONTIER CALIFORNIA INC. 730      
909-890 0 SNBRCAXLDS0  2319 FRONTIER CALIFORNIA INC. 730      
909-890 1 SNBRCAXLDS0  2319 FRONTIER CALIFORNIA INC. 730      
909-890 2 SNBRCAXLDS0  2319 FRONTIER CALIFORNIA INC. 730      
909-890 3 SNBRCAXLDS0  2319 FRONTIER CALIFORNIA INC. 730      
909-890 4 SNBRCAXLDS0  2319 FRONTIER CALIFORNIA INC. 730      
909-890 5 SNBRCAXLDS0  2319 FRONTIER CALIFORNIA INC. 730      
909-890 6 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2004-06-15   
909-890 7 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2004-04-19   
909-890 8 RVSDCAYAGT1  899D METROPCS NETWORKS, LLC 730   2004-06-06   
909-890 9 SNBRCAXLDS0  2319 FRONTIER CALIFORNIA INC. 730      
909-891 A SNBRCAXK88E  2319 FRONTIER CALIFORNIA INC. 730      
909-891 0 LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-03-08   
909-891 1 SNBRCAXK88E  2319 FRONTIER CALIFORNIA INC. 730      

<< 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: ISP Telecom

Like this site? We accept donations via PayPal.