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: 494

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-494 A Yakima WA YAKMWA02DS1  9638 QWEST CORPORATION 676      
509-494 0 Yakima WA   9638 QWEST CORPORATION 676      
509-494 1 Yakima WA   9638 QWEST CORPORATION 676      
509-494 2 Yakima WA   6010 NEW CINGULAR WIRELESS PCS, LLC 676   2005-10-28   
509-494 3 Yakima WA   6010 NEW CINGULAR WIRELESS PCS, LLC 676   2005-10-28   
509-494 4 Yakima WA   6529 T-MOBILE USA, INC. 676   2006-10-14   
509-494 5 Yakima WA   6010 NEW CINGULAR WIRELESS PCS, LLC 676   2006-05-26   
509-494 6 Yakima WA   9638 QWEST CORPORATION 676      
509-494 7 Yakima WA   9638 QWEST CORPORATION 676      
509-494 8 Yakima WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2006-10-10   
509-494 9 Yakima WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 676   2007-10-25   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.