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: 369

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-369 A St Helens OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-369 0 St Helens OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-369 1 St Helens OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-369 2 St Helens OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-369 3 St Helens OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-369 4 St Helens OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-369 5 St Helens OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-369 6 St Helens OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-369 7 St Helens OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-369 8 St Helens OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-369 9 St Helens OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.