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.

Switch: PLSBWAXXDS1

Remotes:

Switch Switch name Switch type
BRNNWAXXRS0  BRINNON  DRL 
CNTRWAXXRS0  CHIMACUM/CENTER  DRL 
GRNRWAXXRS0  GARDINER  1RC 
QLCNWAXARS0  QUILCENE  DRL 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
360-394 A Poulsbo WA 4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 674      
360-598 A Poulsbo WA 4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 674      
360-697 A Poulsbo WA 4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 674      
360-779 A Poulsbo WA 4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 674      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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