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: 622

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-622 A San Carlos-Belmont CA SNCRCA11DS0  9740 PACIFIC BELL 722      
650-622 0 San Carlos-Belmont CA SNCRCA11DS0  9740 PACIFIC BELL 722      
650-622 1 San Carlos-Belmont CA SNCRCA11DS0  9740 PACIFIC BELL 722      
650-622 2 San Carlos-Belmont CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2011-06-03   
650-622 3 San Carlos-Belmont CA SNCRCA11DS0  9740 PACIFIC BELL 722      
650-622 4 San Carlos-Belmont CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2014-08-08   
650-622 5 San Carlos-Belmont CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2017-06-17   
650-622 6 San Carlos-Belmont CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2011-02-04   
650-622 7 San Carlos-Belmont CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2018-07-06   
650-622 8 San Carlos-Belmont CA SNFCCAMKDS3  649C ONVOY, LLC - CA 722   2023-09-10   
650-622 9 San Carlos-Belmont CA SNCRCA11DS0  9740 PACIFIC BELL 722      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.