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: 276

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-276 A Deer Park WA DRPKWA01DS0  9638 QWEST CORPORATION 676      
509-276 0 Deer Park WA SPKNWA01XDY  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 676   2012-04-18   
509-276 1 Deer Park WA DRPKWA01DS0  9638 QWEST CORPORATION 676      
509-276 2 Deer Park WA DRPKWA01DS0  9638 QWEST CORPORATION 676      
509-276 3 Deer Park WA DRPKWA01DS0  9638 QWEST CORPORATION 676      
509-276 4 Deer Park WA DRPKWA01DS0  9638 QWEST CORPORATION 676      
509-276 5 Deer Park WA DRPKWA01DS0  9638 QWEST CORPORATION 676      
509-276 6 Deer Park WA DRPKWA01DS0  9638 QWEST CORPORATION 676      
509-276 7 Deer Park WA DRPKWA01DS0  9638 QWEST CORPORATION 676      
509-276 8 Deer Park WA DRPKWA01DS0  9638 QWEST CORPORATION 676      
509-276 9 Deer Park WA DRPKWA01DS0  9638 QWEST CORPORATION 676      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.