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
541-277 A Juntura OR JNTRORXCRS2  652      
541-358 A Harper OR HRPRORXCDS0  652      
541-446 A Hereford-Unity OR HRFRORXXRS0  672      
541-448 A Bates OR BATSORXARS0  672      
541-820 A Prairie City OR PRCYORXARS0  672      
541-932 A Mount Vernon OR MTVRORXXDS0  672      
541-987 A Dayville OR DYVLORXXRS0  672      

Last updated: Sat, 26 Aug 2023 16:14:14 UTC

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