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.

NPA: 909 [Rate centres in NPA 909] [Dial plan for NPA 909]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
909-451 A Claremont-San Dimas CA IRVECAEIDS2  7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730      
909-451 0 Claremont-San Dimas CA   7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730      
909-451 1 Claremont-San Dimas CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2008-06-13   
909-451 2 Claremont-San Dimas CA   7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730      
909-451 3 Claremont-San Dimas CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2006-09-13   
909-451 4 Claremont-San Dimas CA   7240 MCI WORLDCOM COMMUNICATIONS, INC., CA 730      
909-451 5 Claremont-San Dimas CA   9262 UTILITY TELECOM GROUP, LLC - CA 730   2006-05-01   
909-451 6 Claremont-San Dimas CA   7453 U.S. TELEPACIFIC CORP. - CA 730   2007-03-13   
909-451 7 Claremont-San Dimas CA   649C ONVOY, LLC - CA 730   2007-01-11   
909-451 8 Claremont-San Dimas CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-10-19   
909-451 9 Claremont-San Dimas CA   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-10-19   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.