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: RONKVAGEBMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
540-250 9 Radford VA 321J HD CARRIER LLC 244   2021-06-08   
540-806 A Radford VA 321J HD CARRIER LLC 244      
540-806 9 Radford VA 321J HD CARRIER LLC 244   2021-06-17   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.