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: 985

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
559-985 A Madera CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2026-06-26   
559-985 0 Madera CA   981E BANDWIDTH.COM CLEC, LLC - CA 728   2026-06-29   
559-985 1 Madera CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 728   2026-07-11   
559-985 7 Madera CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2026-06-26   
559-985 8 Madera CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2026-06-26   
559-985 9 Madera CA   6010 NEW CINGULAR WIRELESS PCS, LLC 728   2026-06-26   

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.