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: 757

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
540-757 A Christiansburg VA RONKVALKXRX  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244      
540-757 0 Christiansburg VA RONKVALKX1Z  138E ONVOY, LLC - VA 244      
540-757 1 Christiansburg VA RONKVALKX1Z  138E ONVOY, LLC - VA 244      
540-757 2 Christiansburg VA RONKVALKXRX  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244      
540-757 3 Christiansburg VA RONKVALKXRX  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244      
540-757 4 Christiansburg VA RONKVALKXRX  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244      
540-757 5 Christiansburg VA RONKVALKXRX  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244      
540-757 6 Christiansburg VA   4644 TELEPORT COMMUNICATIONS AMERICA, LLC - VA 244      
540-757 7 Christiansburg VA   138E ONVOY, LLC - VA 244      
540-757 8 Christiansburg VA RONKVALKXRX  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244      
540-757 9 Christiansburg VA RONKVALKXRX  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.