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.

Mountain View, CA

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
650-960 0   9740 PACIFIC BELL 722      
650-960 1   9740 PACIFIC BELL 722      
650-960 2   9740 PACIFIC BELL 722      
650-960 3   9740 PACIFIC BELL 722      
650-960 4   9740 PACIFIC BELL 722      
650-960 5   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2013-10-30   
650-960 6   6529 T-MOBILE USA, INC. 722   2012-10-21   
650-960 7   649C ONVOY, LLC - CA 722   2018-12-23   
650-960 8   9740 PACIFIC BELL 722      
650-960 9   9740 PACIFIC BELL 722      
650-961 A MTVWCA11DS1  9740 PACIFIC BELL 722      
650-962 A MTVWCA11DS1  9740 PACIFIC BELL 722      
650-962 0   9740 PACIFIC BELL 722      
650-962 1   9740 PACIFIC BELL 722      
650-962 2   9740 PACIFIC BELL 722      
650-962 3   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 722   2013-10-10   
650-962 4   9740 PACIFIC BELL 722      
650-962 5   9740 PACIFIC BELL 722      
650-962 6   9740 PACIFIC BELL 722      
650-962 7   9740 PACIFIC BELL 722      
650-962 8   9740 PACIFIC BELL 722      
650-962 9   9740 PACIFIC BELL 722      
650-963 A SNFCCAMKDS3  649C ONVOY, LLC - CA 722      
650-963 0   649C ONVOY, LLC - CA 722      
650-963 1   6529 T-MOBILE USA, INC. 722      
650-963 2   649C ONVOY, LLC - CA 722      
650-963 3   649C ONVOY, LLC - CA 722      
650-963 4   981E BANDWIDTH.COM CLEC, LLC - CA 722   2006-03-12   
650-963 5   981E BANDWIDTH.COM CLEC, LLC - CA 722   2007-01-27   
650-963 6   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2011-09-06   
650-963 7   649C ONVOY, LLC - CA 722   2008-04-04   
650-963 8   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2007-12-27   
650-963 9   318J COMCAST IP PHONE, LLC 722   2007-02-17   
650-964 A MTVWCA11DS1  9740 PACIFIC BELL 722      
650-965 A MTVWCA11DS1  9740 PACIFIC BELL 722      
650-965 0   9740 PACIFIC BELL 722      
650-965 1   9740 PACIFIC BELL 722      
650-965 2   9740 PACIFIC BELL 722      
650-965 3   9740 PACIFIC BELL 722      
650-965 4   9740 PACIFIC BELL 722      
650-965 5   6010 NEW CINGULAR WIRELESS PCS, LLC 722   2013-10-30   
650-965 6   9740 PACIFIC BELL 722      
650-965 7   9740 PACIFIC BELL 722      
650-965 8   9740 PACIFIC BELL 722      
650-965 9   9740 PACIFIC BELL 722      
650-966 A MTVWCA11DS1  9740 PACIFIC BELL 722      
650-966 0   9740 PACIFIC BELL 722      
650-966 1   9740 PACIFIC BELL 722      
650-966 2   9740 PACIFIC BELL 722      
650-966 3   9740 PACIFIC BELL 722      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.