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: 445

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-445 A San Mateo CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722      
650-445 0 San Mateo CA SNFCCASY5MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2013-12-28   
650-445 1 San Mateo CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2013-12-06   
650-445 2 San Mateo CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2013-09-27   
650-445 3 San Mateo CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2013-09-27   
650-445 4 San Mateo CA SNFCCA21XUY  981E BANDWIDTH.COM CLEC, LLC - CA 722   2014-06-28   
650-445 5 San Mateo CA FRFECABBCM0  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 722   2014-06-24   
650-445 6 San Mateo CA SNFCCAFJDS0  7145 TELEPORT COMMUNICATIONS GROUP - SAN FRANCISCO 722   2013-09-27   
650-445 7 San Mateo CA OKLDCA03XOY  318J COMCAST IP PHONE LLC 722   2013-10-30   
650-445 8 San Mateo CA SNTDCAUJCM9  6010 NEW CINGULAR WIRELESS PCS, LLC 722   2013-10-30   
650-445 9 San Mateo CA OKLECAZVGT0  6529 T-MOBILE USA, INC. 722   2013-09-19   

Last updated: Sun, 28 Feb 2021 19:06:05 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.