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.

NPA: 509 [Rate centres in NPA 509] [Dial plan for NPA 509]

NXX: 288

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-288 A Colfax WA SPKNWA01XUX  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676      
509-288 0 Colfax WA   6010 NEW CINGULAR WIRELESS PCS, LLC 676   2004-04-22   
509-288 1 Colfax WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 676   2005-01-16   
509-288 2 Colfax WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 676   2010-09-27   
509-288 3 Colfax WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2015-07-03   
509-288 4 Colfax WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2004-06-05   
509-288 5 Colfax WA   663D ELTOPIA COMMUNICATIONS, LLC - WA 676   2008-06-28   
509-288 6 Colfax WA   7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 676   2012-07-12   
509-288 7 Colfax WA   1484 INLAND CELLULAR LLC 676   2005-04-08   
509-288 8 Colfax WA   1484 INLAND CELLULAR LLC 676   2005-04-08   
509-288 9 Colfax WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 676   2013-02-08   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.