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: 450

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-450 A Mountain View CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-450 0 Mountain View CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-450 1 Mountain View CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-450 2 Mountain View CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-450 3 Mountain View CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722      
650-450 4 Mountain View CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2006-09-09   
650-450 5 Mountain View CA SNJSCAYB0MD  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 722   2004-02-02   
650-450 6 Mountain View CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2007-10-11   
650-450 7 Mountain View CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2007-10-11   
650-450 8 Mountain View CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2008-11-21   
650-450 9 Mountain View CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2007-08-24   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.