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: PTLDOR17DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
503-244 A Portland OR 9638 QWEST CORPORATION 672      
503-245 A Portland OR 9638 QWEST CORPORATION 672      
503-246 A Portland OR 9638 QWEST CORPORATION 672      
503-293 A Portland OR 9638 QWEST CORPORATION 672      
503-452 A Portland OR 9638 QWEST CORPORATION 672      
503-768 A Portland OR 9638 QWEST CORPORATION 672      
503-892 A Portland OR 9638 QWEST CORPORATION 672      
503-952 1 Portland OR 9638 QWEST CORPORATION 672      
503-977 A Portland OR 9638 QWEST CORPORATION 672      
971-242 A Portland OR 9638 QWEST CORPORATION 672      
971-242 0 Portland OR 9638 QWEST CORPORATION 672      
971-242 1 Portland OR 9638 QWEST CORPORATION 672      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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