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: 997

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-997 A Twisp WA TWISWAXADS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 0 Twisp WA TWISWAXADS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 1 Twisp WA TWISWAXADS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 2 Twisp WA TWISWAXADS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 3 Twisp WA TWISWAXADS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 4 Twisp WA TWISWAXADS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 5 Twisp WA TWISWAXADS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 7 Twisp WA TWISWAXADS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 8 Twisp WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2022-10-02   
509-997 9 Twisp WA TWISWAXADS0  2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.