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: 509 [Rate centres in NPA 509] [Dial plan for NPA 509]

NXX: 618

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-618 A Cheney WA   707G WIDE VOICE, LLC - WA 676      
509-618 0 Cheney WA SPKNWAKY0MD  006F BANDWIDTH.COM CLEC, LLC - WA 676   2024-10-21   
509-618 1 Cheney WA   707G WIDE VOICE, LLC - WA 676   2025-06-30   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.