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.

Mount Solon, VA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
540-275 A RONKVAGECMD  490J BOOST SUBSCRIBERCO L.L.C. 244      
540-275 0   145J TERRA NOVA TELECOM INC. 244   2025-07-10   
540-275 8 RONKVAGECMD  490J BOOST SUBSCRIBERCO L.L.C. 244   2022-12-20   
540-350 A MTSLVAXADS0  0236 SHENANDOAH TEL. CO. 244      

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.