Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 503 [Rate centres in NPA 503] [Dial plan for NPA 503]

NXX: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-600 A Molalla OR PTLDORWAXKY  936F ASTOUND BROADBAND, LLC - OR 672      
503-600 0 Molalla OR PTLDORWAXKY  936F ASTOUND BROADBAND, LLC - OR 672   2009-08-03   
503-600 7 Molalla OR THDLORXADMD  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672   2022-07-07   

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

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