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
435-234 A Ibapah UT IBPHUTXCDS0  660      
435-456 A Cainville UT LKPTUTBHDS1  660      
435-661 A Dangling Rope UT DNRPUTXC661  660      
435-662 A Cedar City UT LKPTUTBHDS1  660      
435-663 A Ibapah UT WNDVUTXCDS0  660      
435-693 A Partoun UT LKPTUTBHDS1  660      
435-712 A Kolob UT LKPTUTBHDS1  660      
435-747 A Grouse Creek UT LKPTUTBHDS1  660      
435-788 A Ticaboo UT LKPTUTBHDS1  660      
435-837 A Rush Valley UT LKPTUTBHDS1  660      
435-839 A Vernon UT LKPTUTBHDS1  660      
435-855 A Garrison UT GRSNUTXCDS0  660      
435-871 A Park Valley UT LKPTUTBHDS1  660      

Last updated: Fri, 28 Jun 2024 03:14:50 UTC

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