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: 337

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-337 A Waitsburg WA WTBGWA01DS0  9638 QWEST CORPORATION 676      
509-337 0 Waitsburg WA WTBGWA01DS0  9638 QWEST CORPORATION 676      
509-337 1 Waitsburg WA WTBGWA01DS0  9638 QWEST CORPORATION 676      
509-337 2 Waitsburg WA YAKMWAWE7MD  508J CENTURYLINK COMMUNICATIONS LLC 676   2015-01-26   
509-337 3 Waitsburg WA KNWCWAII3MD  814D CHARTER FIBERLINK WA - CCVII, LLC - WA 676   2007-05-02   
509-337 4 Waitsburg WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2007-03-23   
509-337 5 Waitsburg WA SPKNWA01XUX  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2006-02-26   
509-337 6 Waitsburg WA WTBGWA01DS0  9638 QWEST CORPORATION 676      
509-337 7 Waitsburg WA SPKNWADZ8MD  145J TERRA NOVA TELECOM INC. 676   2020-11-14   
509-337 8 Waitsburg WA WTBGWA01DS0  9638 QWEST CORPORATION 676      
509-337 9 Waitsburg WA WTBGWA01DS0  9638 QWEST CORPORATION 676      

Last updated: Thu, 04 Aug 2022 23:14:42 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.