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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Switch: SLKCUT26EMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
385-452 A Provo UT 490J DISH WIRELESS, LLC 660      
385-453 A Ogden UT 490J DISH WIRELESS, LLC 660      
385-584 A Salt Lake City UT 490J DISH WIRELESS, LLC 660   2024-08-29   
385-587 A Spanish Fork Canyon UT 490J DISH WIRELESS, LLC 660   2024-09-26   
385-622 A Salt Lake City UT 490J DISH WIRELESS, LLC 660      
435-317 A Logan UT 490J DISH WIRELESS, LLC 660      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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