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.

South Whidbey, WA

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
360-730 A SWHDWAXXDS1  2452 WHIDBEY TEL. CO. 674      
360-730 1 SWHDWAXXDS1  2452 WHIDBEY TEL. CO. 674      
360-730 2 SWHDWAXXDS1  2452 WHIDBEY TEL. CO. 674      

<< 1 2

Last updated: Sat, 02 May 2026 12:20:53 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.