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: PTLDOR02DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
503-203 A Portland OR 9638 QWEST CORPORATION 672      
503-216 A Portland OR 9638 QWEST CORPORATION 672      
503-291 A Portland OR 9638 QWEST CORPORATION 672      
503-292 A Portland OR 9638 QWEST CORPORATION 672      
503-296 A Portland OR 9638 QWEST CORPORATION 672      
503-297 A Portland OR 9638 QWEST CORPORATION 672      
503-384 A Portland OR 9638 QWEST CORPORATION 672      
503-384 0 Portland OR 9638 QWEST CORPORATION 672      
503-384 1 Portland OR 9638 QWEST CORPORATION 672      
503-384 5 Portland OR 9638 QWEST CORPORATION 672      
503-384 9 Portland OR 9638 QWEST CORPORATION 672      
971-282 A Portland OR 9638 QWEST CORPORATION 672      
971-282 0 Portland OR 9638 QWEST CORPORATION 672   2012-01-22   

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

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