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: 801

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-801 A Yakima WA   6010 NEW CINGULAR WIRELESS PCS, LLC 676   2026-10-23   
509-801 0 Yakima WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 676   2026-10-26   
509-801 1 Yakima WA   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 676   2026-11-23   
509-801 8 Yakima WA   6010 NEW CINGULAR WIRELESS PCS, LLC 676   2026-10-23   
509-801 9 Yakima WA   6010 NEW CINGULAR WIRELESS PCS, LLC 676   2026-10-23   

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.