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: 535

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-535 A Terra Bella CA TRBLCA11RS0  9740 PACIFIC BELL 728      
559-535 0 Terra Bella CA   9740 PACIFIC BELL 728      
559-535 1 Terra Bella CA   9740 PACIFIC BELL 728      
559-535 2 Terra Bella CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-12-21   
559-535 3 Terra Bella CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2015-11-10   
559-535 4 Terra Bella CA   9740 PACIFIC BELL 728      
559-535 5 Terra Bella CA   9740 PACIFIC BELL 728      
559-535 6 Terra Bella CA   073H TELNYX LLC 728   2018-06-27   
559-535 7 Terra Bella CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-12-21   
559-535 8 Terra Bella CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-12-21   
559-535 9 Terra Bella CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2015-12-21   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.