Local Calling Guide

Area code/prefix search

Search by area code/prefix (NPA/NXX) or OCN

  • 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.

Last updated: Sat, 30 Aug 2014 11:47:04 UTC

How to use this page

NPA: 360 [Rate centres in NPA 360] [Dial plan for NPA 360]

NXX: 331

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date Map
360-331 A South Whidbey WA SWHDWAXXDS1 2452 WHIDBEY TELEPHONE CO. [link] 674 map
360-331 0 South Whidbey WA 2452 WHIDBEY TELEPHONE CO. [link] 674
360-331 1 South Whidbey WA 2452 WHIDBEY TELEPHONE CO. [link] 674
360-331 2 South Whidbey WA 2452 WHIDBEY TELEPHONE CO. [link] 674
360-331 3 South Whidbey WA 2452 WHIDBEY TELEPHONE CO. [link] 674
360-331 4 South Whidbey WA 2452 WHIDBEY TELEPHONE CO. [link] 674
360-331 5 South Whidbey WA 2452 WHIDBEY TELEPHONE CO. [link] 674
360-331 6 South Whidbey WA 2452 WHIDBEY TELEPHONE CO. [link] 674
360-331 7 South Whidbey WA 2452 WHIDBEY TELEPHONE CO. [link] 674
360-331 8 South Whidbey WA 2452 WHIDBEY TELEPHONE CO. [link] 674



Sponsored by: VoiceMeUp - Corporate VoIP Services