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: 650 [Rate centres in NPA 650] [Dial plan for NPA 650]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-413 A San Carlos-Belmont CA SNCRCA11DS0  9740 PACIFIC BELL 722      
650-413 0 San Carlos-Belmont CA   9740 PACIFIC BELL 722      
650-413 1 San Carlos-Belmont CA   9740 PACIFIC BELL 722      
650-413 2 San Carlos-Belmont CA   9740 PACIFIC BELL 722      
650-413 3 San Carlos-Belmont CA   9740 PACIFIC BELL 722      
650-413 4 San Carlos-Belmont CA   9740 PACIFIC BELL 722      
650-413 5 San Carlos-Belmont CA   9740 PACIFIC BELL 722      
650-413 6 San Carlos-Belmont CA   9740 PACIFIC BELL 722      
650-413 7 San Carlos-Belmont CA   9740 PACIFIC BELL 722      
650-413 8 San Carlos-Belmont CA   9740 PACIFIC BELL 722      
650-413 9 San Carlos-Belmont CA   649C ONVOY, LLC - CA 722   2015-08-11   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.