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.

Glasgow, VA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
540-258 A GLSGVAXARS0  0254 BRIGHTSPEED OF VIRGINIA, LLC 244      
540-258 0 GLSGVAXARS0  0254 BRIGHTSPEED OF VIRGINIA, LLC 244      
540-258 1 GLSGVAXARS0  0254 BRIGHTSPEED OF VIRGINIA, LLC 244      
540-258 2 GLSGVAXARS0  0254 BRIGHTSPEED OF VIRGINIA, LLC 244      
540-258 3 RONKVALKX2Z  318J COMCAST IP PHONE, LLC 244   2012-05-15   
540-258 4 RONKVALKX1Z  138E ONVOY, LLC - VA 244   2018-10-10   
540-258 5 GLSGVAXARS0  0254 BRIGHTSPEED OF VIRGINIA, LLC 244      
540-258 6 RONKVALKX1Z  138E ONVOY, LLC - VA 244   2022-12-30   
540-258 7 GLSGVAXARS0  0254 BRIGHTSPEED OF VIRGINIA, LLC 244      
540-258 8 GLSGVAXARS0  0254 BRIGHTSPEED OF VIRGINIA, LLC 244      
540-258 9 GLSGVAXARS0  0254 BRIGHTSPEED OF VIRGINIA, LLC 244      
540-329 A RONKVALKXLY  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 244      
540-329 0 RONKVALK5MD  4979 SHENTEL COMMUNICATIONS, LLC. - VA 244   2017-12-18   
540-329 1 RONKVALKX1Z  138E ONVOY, LLC - VA 244   2019-06-16   
540-329 2 RONKVALKX1Z  138E ONVOY, LLC - VA 244   2020-07-04   
540-329 3 RONKVALKX1Z  138E ONVOY, LLC - VA 244   2020-07-04   
540-329 4 RONKVALKX1Z  138E ONVOY, LLC - VA 244   2020-11-07   
540-329 5 RONKVALKX1Z  138E ONVOY, LLC - VA 244   2020-11-07   
540-329 6 RONKVALKXYY  079F BANDWIDTH.COM CLEC, LLC - VA 244   2020-04-10   
540-329 7 RONKVALKXJY  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 244   2013-12-19   
540-329 8 RONKVALKX1Z  138E ONVOY, LLC - VA 244   2019-06-16   
540-329 9 RONKVALKXLY  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 244      
540-540 A RONKVALKXGX  624H ONVOY SPECTRUM, LLC 244      
540-540 0 RONKVALKXGX  624H ONVOY SPECTRUM, LLC 244   2023-10-07   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.