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

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
650-966 6 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-10-19   
650-966 7 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-10-19   
650-966 8 MTVWCA11DS1  9740 PACIFIC BELL 722      
650-966 9 MTVWCA11DS1  9740 PACIFIC BELL 722      
650-967 A MTVWCA11DS1  9740 PACIFIC BELL 722      
650-968 A MTVWCA11DS1  9740 PACIFIC BELL 722      
650-969 A MTVWCA11DS1  9740 PACIFIC BELL 722      
650-988 A MTVWCA11DS0  9740 PACIFIC BELL 722      
650-988 0 MTVWCA11DS0  9740 PACIFIC BELL 722      
650-988 1 MTVWCA11DS0  9740 PACIFIC BELL 722      
650-988 2 MTVWCA11DS0  9740 PACIFIC BELL 722      
650-988 3 MTVWCA11DS0  9740 PACIFIC BELL 722      
650-988 4 MTVWCA11DS0  9740 PACIFIC BELL 722      
650-988 5 SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2019-08-19   
650-988 6 MTVWCA11DS0  9740 PACIFIC BELL 722      
650-988 7 MTVWCA11DS0  9740 PACIFIC BELL 722      
650-988 8 MTVWCA11DS0  9740 PACIFIC BELL 722      
650-988 9 MTVWCA11DS0  9740 PACIFIC BELL 722      
650-996 A SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      

<< 1 2 3 4 5 6 7 8 9

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.