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: 540 [Rate centres in NPA 540] [Dial plan for NPA 540]

NXX: 444

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
540-444 A Salem VA TRVLVAXA0MD  7185 LUMOS NETWORKS INC. 244      
540-444 0 Salem VA   7185 LUMOS NETWORKS INC. 244      
540-444 1 Salem VA   138E ONVOY, LLC - VA 244   2021-03-06   
540-444 2 Salem VA   7185 LUMOS NETWORKS INC. 244      
540-444 3 Salem VA   138E ONVOY, LLC - VA 244   2021-03-06   
540-444 4 Salem VA   7185 LUMOS NETWORKS INC. 244      
540-444 5 Salem VA   7185 LUMOS NETWORKS INC. 244      
540-444 6 Salem VA   7185 LUMOS NETWORKS INC. 244      
540-444 7 Salem VA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 244   2019-12-31   
540-444 8 Salem VA   7185 LUMOS NETWORKS INC. 244      
540-444 9 Salem VA   7185 LUMOS NETWORKS INC. 244      

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.