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: 415 [Rate centres in NPA 415] [Dial plan for NPA 415]

NXX: 366

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
415-366 A Belvedere CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-366 0 Belvedere CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-366 1 Belvedere CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-366 2 Belvedere CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-366 3 Belvedere CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
415-366 4 Belvedere CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722      
415-366 5 Belvedere CA HYWRCAMCDS0  7240 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 722   2003-09-14   
415-366 6 Belvedere CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-10-28   
415-366 7 Belvedere CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2000-08-25   
415-366 8 Belvedere CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2005-10-28   
415-366 9 Belvedere CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2005-04-16   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.