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: 503 [Rate centres in NPA 503] [Dial plan for NPA 503]

NXX: 901

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-901 A Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-901 0 Portland OR PTLJORIY1MD  5562 METROPCS, INC. 672      
503-901 1 Portland OR PTLJORIY1MD  5562 METROPCS, INC. 672      
503-901 2 Portland OR PTLJORIY1MD  5562 METROPCS, INC. 672      
503-901 3 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-901 4 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-901 5 Portland OR PTLJORIY1MD  5562 METROPCS, INC. 672      
503-901 6 Portland OR PTLJORIY1MD  5562 METROPCS, INC. 672      
503-901 7 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-901 8 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-901 9 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.