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: 559 [Rate centres in NPA 559] [Dial plan for NPA 559]

NXX: 565

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-565 A Sequoia CA ASMTCA11RS0  9740 PACIFIC BELL 728      
559-565 0 Sequoia CA ASMTCA11RS0  9740 PACIFIC BELL 728      
559-565 1 Sequoia CA ASMTCA11RS0  9740 PACIFIC BELL 728      
559-565 2 Sequoia CA FRSNCA01XOY  649C ONVOY, LLC - CA 728   2021-07-22   
559-565 3 Sequoia CA ASMTCA11RS0  9740 PACIFIC BELL 728      
559-565 4 Sequoia CA ASMTCA11RS0  9740 PACIFIC BELL 728      
559-565 5 Sequoia CA FRSMCA150MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 728   2005-08-02   
559-565 6 Sequoia CA FRSNCA01XNY  981E BANDWIDTH.COM CLEC, LLC - CA 728   2022-02-11   
559-565 7 Sequoia CA   145J TERRA NOVA TELECOM INC. 728   2021-11-06   
559-565 8 Sequoia CA FRSNCA01XDZ  776C CHARTER FIBERLINK CA-CCO, LLC - CA 728   2018-11-08   
559-565 9 Sequoia CA FRSNCA01XUZ  624H ONVOY SPECTRUM, LLC 728   2024-01-03   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.