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: 870

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-870 A Tulare CA FRSNCAQRAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728      
559-870 0 Tulare CA FRSNCAQRAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2023-10-07   
559-870 1 Tulare CA FRSNCAQRAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2023-10-07   
559-870 2 Tulare CA FRSNCA01TMD  939H COMMIO, LLC 728   2024-01-21   
559-870 3 Tulare CA FRSNCA01TMD  939H COMMIO, LLC 728   2024-01-21   
559-870 4 Tulare CA FRSNCA01TMD  939H COMMIO, LLC 728   2024-01-21   
559-870 5 Tulare CA FRSNCAQRAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2024-05-21   
559-870 6 Tulare CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2025-02-03   
559-870 7 Tulare CA FRSNCAQRAMD  6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2024-12-12   
559-870 8 Tulare CA FRSNCA01XUZ  624H ONVOY SPECTRUM, LLC 728   2024-01-03   
559-870 9 Tulare CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2025-02-03   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.