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: 541 [Rate centres in NPA 541] [Dial plan for NPA 541]

NXX: 562

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
541-562 A Union OR UNINORXARS1  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
541-562 0 Union OR   508J CENTURYLINK COMMUNICATIONS, LLC 672   2014-02-19   
541-562 1 Union OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
541-562 2 Union OR   792K CHARTER IP ENABLED SERVICES, LLC 672   2009-01-22   
541-562 3 Union OR   624H ONVOY SPECTRUM, LLC 672   2021-12-13   
541-562 4 Union OR   0760 PRIORITYONE TELECOMMUNICATIONS, INC. - OR 672   2012-05-05   
541-562 5 Union OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
541-562 6 Union OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
541-562 7 Union OR   750E ONVOY, LLC - OR 672   2007-05-28   
541-562 8 Union OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
541-562 9 Union OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.