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: 725 [Rate centres in NPA 725] [Dial plan for NPA 725]

NXX: 348

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
725-348 A Mount Charleston NV   029F ONVOY, LLC - NV 721   2025-08-16   
725-348 0 Mount Charleston NV   029F ONVOY, LLC - NV 721   2025-08-16   
725-348 1 Mount Charleston NV   029F ONVOY, LLC - NV 721   2025-09-27   
725-348 2 Mount Charleston NV   029F ONVOY, LLC - NV 721   2025-10-26   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.