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: 631

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-631 A Coulee Dam WA MLWDWAAA2MD  6010 NEW CINGULAR WIRELESS PCS, LLC 676      
509-631 0 Coulee Dam WA MLWDWAAA2MD  6010 NEW CINGULAR WIRELESS PCS, LLC 676      
509-631 1 Coulee Dam WA MLWDWAAA2MD  6010 NEW CINGULAR WIRELESS PCS, LLC 676      
509-631 2 Coulee Dam WA MLWDWAAA2MD  6010 NEW CINGULAR WIRELESS PCS, LLC 676      
509-631 3 Coulee Dam WA WNTCWABADS1  3229 COMPUTERS 5*, INC. DBA LOCALTEL - WA 676   2003-10-08   
509-631 4 Coulee Dam WA MLWDWAAA2MD  6010 NEW CINGULAR WIRELESS PCS, LLC 676   2004-09-30   
509-631 5 Coulee Dam WA SPKNWA01XBY  663D ELTOPIA COMMUNICATIONS, LLC - WA 676   2008-06-28   
509-631 6 Coulee Dam WA SPKNWA01X7X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 676   2015-03-31   
509-631 7 Coulee Dam WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2006-10-13   
509-631 8 Coulee Dam WA SPKNWA01XXX  483E ONVOY, LLC - WA 676   2013-07-05   
509-631 9 Coulee Dam WA SPKNWAKY0MD  006F BANDWIDTH.COM CLEC, LLC - WA 676   2013-11-14   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.