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
650-690 A Palo Alto CA SNFCCA21DS3  7421 AT&T LOCAL 722      
650-690 0 Palo Alto CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2010-10-03   
650-690 1 Palo Alto CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2010-10-03   
650-690 2 Palo Alto CA   981E BANDWIDTH.COM CLEC, LLC - CA 722   2012-09-06   
650-690 3 Palo Alto CA   7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722   2010-04-24   
650-690 4 Palo Alto CA   5562 METRO PCS, INC. 722   2009-01-17   
650-690 5 Palo Alto CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2011-02-05   
650-690 6 Palo Alto CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2008-09-06   
650-690 7 Palo Alto CA   258E YMAX COMMUNICATIONS CORP. - CA 722   2008-09-11   
650-690 8 Palo Alto CA   258E YMAX COMMUNICATIONS CORP. - CA 722   2008-09-11   
650-690 9 Palo Alto CA   7421 AT&T LOCAL 722      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.