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: 863

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-863 A Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-863 0 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-12-01   
503-863 1 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-12-15   
503-863 2 Portland OR PTLDOR69X9X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2007-08-06   
503-863 3 Portland OR PTLDOR69X9X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2007-08-06   
503-863 4 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2007-01-11   
503-863 5 Portland OR PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672   2007-01-15   
503-863 6 Portland OR PTLDOR62GT2  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-863 7 Portland OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2007-09-05   
503-863 8 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2007-02-09   
503-863 9 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2007-01-19   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.