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: PTLDOR11DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
503-251 A Portland OR 9638 QWEST CORPORATION 672      
503-252 A Portland OR 9638 QWEST CORPORATION 672      
503-253 A Portland OR 9638 QWEST CORPORATION 672      
503-254 A Portland OR 9638 QWEST CORPORATION 672      
503-255 A Portland OR 9638 QWEST CORPORATION 672      
503-256 A Portland OR 9638 QWEST CORPORATION 672      
503-257 A Portland OR 9638 QWEST CORPORATION 672      
503-258 A Portland OR 9638 QWEST CORPORATION 672      
503-258 0 Portland OR 9638 QWEST CORPORATION 672      
503-258 1 Portland OR 9638 QWEST CORPORATION 672      
503-258 2 Portland OR 9638 QWEST CORPORATION 672      
503-258 3 Portland OR 9638 QWEST CORPORATION 672      
503-258 4 Portland OR 9638 QWEST CORPORATION 672      
503-258 5 Portland OR 9638 QWEST CORPORATION 672      
503-258 6 Portland OR 9638 QWEST CORPORATION 672      
503-258 8 Portland OR 9638 QWEST CORPORATION 672      
503-258 9 Portland OR 9638 QWEST CORPORATION 672      
503-261 A Portland OR 9638 QWEST CORPORATION 672      
503-261 0 Portland OR 9638 QWEST CORPORATION 672      
503-261 1 Portland OR 9638 QWEST CORPORATION 672      
503-261 2 Portland OR 9638 QWEST CORPORATION 672      
503-261 4 Portland OR 9638 QWEST CORPORATION 672      
503-261 5 Portland OR 9638 QWEST CORPORATION 672      
503-261 6 Portland OR 9638 QWEST CORPORATION 672      
503-261 7 Portland OR 9638 QWEST CORPORATION 672      
503-261 8 Portland OR 9638 QWEST CORPORATION 672      
503-261 9 Portland OR 9638 QWEST CORPORATION 672      
503-262 A Portland OR 9638 QWEST CORPORATION 672      
503-401 A Portland OR 9638 QWEST CORPORATION 672      
503-408 A Portland OR 9638 QWEST CORPORATION 672      
971-229 5 Portland OR 9638 QWEST CORPORATION 672   2011-10-10   
971-229 6 Portland OR 9638 QWEST CORPORATION 672   2011-10-10   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.