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.
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Switch: TWISWAXADS0

Remotes:

Switch Switch name Switch type
WNTHWAXARS0  WINTHROP  1RE 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
509-997 A Twisp WA 2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 0 Twisp WA 2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 1 Twisp WA 2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 2 Twisp WA 2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 3 Twisp WA 2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 4 Twisp WA 2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 5 Twisp WA 2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 7 Twisp WA 2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      
509-997 9 Twisp WA 2408 CENTURYTEL OF WASHINGTON, INC. DBA CENTURYLINK 676      

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

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