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
337-225 A Kaplan LA KPLNLAXADS1  488      
337-642 A Forked Island LA KPLNLAXADS1  488      
337-643 A Kaplan LA KPLNLAXADS1  488      
337-652 A Kaplan LA KPLNLAXADS1  488      
337-737 A Pecan Island LA KPLNLAXADS1  488      

Last updated: Wed, 07 Feb 2024 04:12:25 UTC

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