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: MRRYUTMADS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
801-685 4 Murray UT 9636 QWEST CORPORATION 660      
801-685 5 Murray UT 9636 QWEST CORPORATION 660      
801-685 6 Murray UT 9636 QWEST CORPORATION 660      
801-685 7 Murray UT 9636 QWEST CORPORATION 660      
801-685 8 Murray UT 9636 QWEST CORPORATION 660      
801-685 9 Murray UT 9636 QWEST CORPORATION 660      
801-743 A Murray UT 9636 QWEST CORPORATION 660      

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Last updated: Sat, 02 May 2026 12:20:53 UTC

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