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.

OCN: 2278 EMERY TELEPHONE DBA EMERY TELCOM

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
435-286 A Castle Dale UT CSDLUTXCDS1  660      
435-381 A Castle Dale UT CSDLUTXCDS1  660      
435-384 A Castle Dale UT CSDLUTXCDS1  660      
435-564 A Green River UT CSDLUTXCDS1  660      
435-653 A Castle Dale UT CSDLUTXCDS1  660      
435-687 A Castle Dale UT CSDLUTXCDS1  660      
435-748 A Castle Dale UT CSDLUTXCDS1  660      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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