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: Thu, 20 Nov 2014 03:01:16 UTC

How to use this page

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

NXX: 557

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date Map
360-557 A Chehalis WA STTNWAHO6MD 4273 BROADWING COMMUNICATIONS, LLC - WA [link] 674 map
360-557 0 Chehalis WA 4273 BROADWING COMMUNICATIONS, LLC - WA [link] 674
360-557 3 Chehalis WA 6060 COMCAST PHONE OF WASHINGTON/OREGON, LLC - WA [link] 674 2014-07-29
360-557 4 Chehalis WA 4273 BROADWING COMMUNICATIONS, LLC - WA [link] 674
360-557 5 Chehalis WA 4273 BROADWING COMMUNICATIONS, LLC - WA [link] 674
360-557 9 Chehalis WA 4273 BROADWING COMMUNICATIONS, LLC - WA [link] 674



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