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: 2283 SKYLINE TELECOM

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
435-433 A Eureka UT EURKUTXCRS1  660      
435-436 A Moroni UT MORNUTXCRS1  660      
435-665 A Wendover UT WNDVUTMADS1  660      
435-831 A Dugway UT DGWYUTMARS0  660      
801-667 A Goshen UT GSHNUTXCRS1  660      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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