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: SWHDWAXXDS1

Remotes:

Switch Switch name Switch type
PNRBWAXARS1  POINT ROBERTS  351 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
360-221 A South Whidbey WA 2452 WHIDBEY TEL. CO. 674      
360-222 A South Whidbey WA 2452 WHIDBEY TEL. CO. 674      
360-321 A South Whidbey WA 2452 WHIDBEY TEL. CO. 674      
360-331 A South Whidbey WA 2452 WHIDBEY TEL. CO. 674      
360-341 A South Whidbey WA 2452 WHIDBEY TEL. CO. 674      
360-444 A Hat Island WA 2417 HAT ISLAND TEL. CO. 674      
360-579 A South Whidbey WA 2452 WHIDBEY TEL. CO. 674      
360-730 A South Whidbey WA 2452 WHIDBEY TEL. CO. 674      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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