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: 933

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-933 A Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-933 0 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-933 1 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-933 2 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-933 3 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-933 4 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-933 5 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-933 6 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-933 7 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-933 8 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-933 9 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.