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.
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OCN: 7541 XO UTAH, INC.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
435-487 A Park City UT SLKDUTHTDS1  660      
435-579 A Tooele UT SLKDUTHTDS1  660      
435-579 0 Tooele UT SLKDUTHTDS1  660      
435-579 1 Tooele UT SLKDUTHTDS1  660      
435-579 2 Tooele UT SLKDUTHTDS1  660      
435-579 3 Tooele UT SLKDUTHTDS1  660      
435-579 4 Tooele UT SLKDUTHTDS1  660      
435-579 7 Tooele UT SLKDUTHTDS1  660      
435-579 8 Tooele UT SLKDUTHTDS1  660      
801-528 A Ogden UT SLKDUTHTDS1  660      
801-528 0 Ogden UT SLKDUTHTDS1  660      
801-735 A Provo UT SLKDUTHTDS1  660      
801-735 0 Provo UT SLKDUTHTDS1  660      
801-842 A Salt Lake City UT SLKDUTHTDS1  660      
801-842 0 Salt Lake City UT SLKDUTHTDS1  660      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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