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.

Switch: SLKCUTEADS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
801-213 A Salt Lake City UT 9636 QWEST CORPORATION 660      
801-581 A Salt Lake City UT 9636 QWEST CORPORATION 660      
801-582 A Salt Lake City UT 9636 QWEST CORPORATION 660      
801-583 A Salt Lake City UT 9636 QWEST CORPORATION 660      
801-584 A Salt Lake City UT 9636 QWEST CORPORATION 660      
801-585 A Salt Lake City UT 9636 QWEST CORPORATION 660      
801-587 A Salt Lake City UT 9636 QWEST CORPORATION 660      
801-588 A Salt Lake City UT 9636 QWEST CORPORATION 660      
801-883 A Salt Lake City UT 9636 QWEST CORPORATION 660      
801-884 A Salt Lake City UT 9636 QWEST CORPORATION 660      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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