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.

NPA: 385 [Rate centres in NPA 385] [Dial plan for NPA 385]

NXX: 543

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
385-543 A Springville UT WVCYUT14DS1  871E ONVOY, LLC - UT 660      
385-543 0 Springville UT   871E ONVOY, LLC - UT 660   2024-03-01   
385-543 1 Springville UT   871E ONVOY, LLC - UT 660   2024-03-01   
385-543 2 Springville UT   871E ONVOY, LLC - UT 660   2024-04-05   
385-543 3 Springville UT   871E ONVOY, LLC - UT 660   2023-08-26   
385-543 4 Springville UT   871E ONVOY, LLC - UT 660   2023-08-26   
385-543 5 Springville UT   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2025-01-19   
385-543 6 Springville UT   624H ONVOY SPECTRUM, LLC 660   2025-01-30   
385-543 8 Springville UT   6010 NEW CINGULAR WIRELESS PCS, LLC 660   2024-05-11   
385-543 9 Springville UT   526H PEERLESS NETWORK OF UTAH, LLC - UT 660   2023-08-27   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.