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: 783

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-783 A Stafford-Sandy OR PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-783 0 Stafford-Sandy OR PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-783 1 Stafford-Sandy OR PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-783 2 Stafford-Sandy OR PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-783 3 Stafford-Sandy OR PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-783 4 Stafford-Sandy OR PTLDOR13X4X  624H ONVOY SPECTRUM, LLC 672      
503-783 5 Stafford-Sandy OR PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-783 6 Stafford-Sandy OR PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-783 7 Stafford-Sandy OR PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-783 8 Stafford-Sandy OR PTLDORWADS2  750E ONVOY, LLC - OR 672      
503-783 9 Stafford-Sandy OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.