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.

Switch: SNJUCACLDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
408-418 A San Jose: West DA CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2009-02-16   
415-363 A San Francisco: Central DA CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2009-04-13   
415-432 A San Francisco: Central DA CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2011-12-23   
415-523 A San Francisco: Central DA CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2011-08-05   
415-687 A Sausalito CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2012-08-20   
510-201 A Oakland: Main-Piedmont DA CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2009-04-13   
510-370 A Hayward CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2012-06-04   
510-443 A Fremont-Newark: Main DA CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2009-04-13   
650-252 A Palo Alto CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2012-06-04   
707-868 A Tomales CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2012-12-07   
925-332 A Concord CA 373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2012-11-25   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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