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: 656

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-656 A Palo Alto CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722      
650-656 0 Palo Alto CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2015-05-08   
650-656 1 Palo Alto CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2015-05-08   
650-656 2 Palo Alto CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2014-05-29   
650-656 3 Palo Alto CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2014-07-07   
650-656 4 Palo Alto CA OKLDCAMP1MD  4733 PAETEC COMMUNICATIONS, INC. - CA 722   2014-06-30   
650-656 5 Palo Alto CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-05-30   
650-656 6 Palo Alto CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2014-07-07   
650-656 7 Palo Alto CA HYWRCAMCDMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-06-01   
650-656 8 Palo Alto CA SNFCCA01XGX  516C AT&T CORP. 722   2014-06-16   
650-656 9 Palo Alto CA OKLDCA03XOY  318J COMCAST IP PHONE, LLC 722   2014-06-29   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.