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: 399

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-399 A Starbuck WA STRBWAXARS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-399 2 Starbuck WA STRBWAXARS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-399 3 Starbuck WA STRBWA020MD  1484 INLAND CELLULAR LLC 676   2006-11-07   
509-399 4 Starbuck WA STRBWA020MD  1484 INLAND CELLULAR LLC 676   2006-11-07   
509-399 7 Starbuck WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2011-08-19   
509-399 9 Starbuck WA   145J TERRA NOVA TELECOM INC. 676   2025-07-24   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.