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: SLKCUTMAXTY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
385-486 A Bountiful UT 732J NUSO, LLC 660      
385-486 1 Bountiful UT 732J NUSO, LLC 660   2022-11-17   
385-514 5 Ogden UT 732J NUSO, LLC 660   2025-08-11   
385-550 1 Bountiful UT 732J NUSO, LLC 660   2024-06-13   
385-550 2 Bountiful UT 732J NUSO, LLC 660   2024-06-13   
385-550 5 Bountiful UT 732J NUSO, LLC 660   2023-12-31   
385-550 6 Bountiful UT 732J NUSO, LLC 660   2023-12-31   
385-562 2 Bountiful UT 732J NUSO, LLC 660   2025-04-28   
385-593 6 Salt Lake City UT 732J NUSO, LLC 660   2025-04-27   
385-604 7 Provo UT 732J NUSO, LLC 660   2025-06-09   
385-604 8 Provo UT 732J NUSO, LLC 660   2025-06-09   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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