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-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
208-583 A South Mountain ID SOMTIDXCRS1  652      
541-339 A Ridgeview OR RDVWORXADS0  652      
541-586 A Jordan Valley OR JRVYORXCDS0  652      
541-724 A Adrian OR ADRNORXARS1  652      

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

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