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: 749

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-749 A Visalia CA VISLCA11DS0  9740 PACIFIC BELL 728      
559-749 0 Visalia CA   9740 PACIFIC BELL 728      
559-749 1 Visalia CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2012-10-22   
559-749 2 Visalia CA   9740 PACIFIC BELL 728      
559-749 3 Visalia CA   9740 PACIFIC BELL 728      
559-749 4 Visalia CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2020-04-13   
559-749 5 Visalia CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2020-02-12   
559-749 6 Visalia CA   9740 PACIFIC BELL 728      
559-749 7 Visalia CA   9740 PACIFIC BELL 728      
559-749 8 Visalia CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2020-12-08   
559-749 9 Visalia CA   7145 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 728   2019-11-02   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.