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: 901 [Rate centres in NPA 901] [Dial plan for NPA 901]

NXX: 792

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
901-792 A Somerville TN   525E ONVOY, LLC - TN 468   2026-05-30   
901-792 0 Somerville TN   525E ONVOY, LLC - TN 468   2026-05-30   
901-792 1 Somerville TN   525E ONVOY, LLC - TN 468   2026-05-30   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.