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.

Switch: SNSDWAXXWMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
509-203 6 Grandview WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2007-06-23   
509-314 6 Toppenish WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2007-06-23   
509-383 6 Granger WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2007-06-23   
509-515 A Sunnyside WA 792K CHARTER IP ENABLED SERVICES, LLC 676      
509-515 0 Sunnyside WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2007-06-23   
509-515 2 Sunnyside WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2014-06-30   
509-584 A Wapato WA 792K CHARTER IP ENABLED SERVICES, LLC 676      
509-584 0 Wapato WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2007-07-07   
509-781 6 Prosser WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2007-06-23   
509-896 6 Mabton WA 792K CHARTER IP ENABLED SERVICES, LLC 676   2007-06-23   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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