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: Fri, 17 May 2013 01:26:12 UTC

How to use this page

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

NXX: 557

NPA-NXX-X Rate Centre Region Switch OCN LATA Eff date Disc date Map
360-557 Chehalis WA STTLWAHNDS0 4273 BROADWING COMMUNICATIONS, LLC - WA [link] 674 map
360-557-0 Chehalis WA 4273 BROADWING COMMUNICATIONS, LLC - WA [link] 674 map
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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