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: 508

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-508 A Spokane WA SPKNWA01Y0X  425J CSC WIRELESS, LLC 676      
509-508 0 Spokane WA   006F BANDWIDTH.COM CLEC, LLC - WA 676   2021-11-01   
509-508 1 Spokane WA   006F BANDWIDTH.COM CLEC, LLC - WA 676   2020-12-19   
509-508 2 Spokane WA   425J CSC WIRELESS, LLC 676   2020-09-21   
509-508 3 Spokane WA   006F BANDWIDTH.COM CLEC, LLC - WA 676   2020-12-19   
509-508 4 Spokane WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2021-03-21   
509-508 5 Spokane WA   073H TELNYX LLC 676   2021-12-02   
509-508 6 Spokane WA   6529 T-MOBILE USA, INC. 676   2020-12-16   
509-508 7 Spokane WA   6529 T-MOBILE USA, INC. 676   2020-12-16   
509-508 8 Spokane WA   6529 T-MOBILE USA, INC. 676   2020-10-24   
509-508 9 Spokane WA   6529 T-MOBILE USA, INC. 676   2020-10-24   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.