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: 228

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-228 A Spokane WA SPKNWAWADS0  9638 QWEST CORPORATION 676      
509-228 0 Spokane WA SPKNWAWADS0  9638 QWEST CORPORATION 676      
509-228 1 Spokane WA SPKNWAVRDS2  7455 LEVEL 3 TELECOM OF WASHINGTON, LLC - WA 676   2004-01-06   
509-228 2 Spokane WA EWNCWA270MD  6529 T-MOBILE USA, INC. 676   2004-12-13   
509-228 3 Spokane WA SPKNWA01XUX  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2005-10-29   
509-228 4 Spokane WA SPKNWAWADS0  9638 QWEST CORPORATION 676      
509-228 5 Spokane WA SPKNWAWADS0  9638 QWEST CORPORATION 676      
509-228 6 Spokane WA SPKNWAWADS0  9638 QWEST CORPORATION 676      
509-228 7 Spokane WA SPKNWA01XUX  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2007-12-04   
509-228 8 Spokane WA SPKNWA01XUX  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 676   2005-10-29   
509-228 9 Spokane WA SPKNWAWADS0  9638 QWEST CORPORATION 676      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.