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: 605

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
540-605 A Blacksburg VA RONKVALKXRX  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244      
540-605 0 Blacksburg VA RONKVALKXRX  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244      
540-605 1 Blacksburg VA RONKVALKXXY  367E YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 244   2008-09-08   
540-605 2 Blacksburg VA RONKVALKXXY  367E YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 244   2008-09-08   
540-605 3 Blacksburg VA RONKVALKXXY  367E YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 244   2008-09-08   
540-605 4 Blacksburg VA RONKVALKXXY  367E YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 244   2008-09-08   
540-605 5 Blacksburg VA RONKVALKXXY  367E YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA 244   2008-09-08   
540-605 6 Blacksburg VA   145J TERRA NOVA TELECOM INC. 244   2021-01-27   
540-605 7 Blacksburg VA RONKVALKX2Z  318J COMCAST IP PHONE, LLC 244   2013-09-19   
540-605 8 Blacksburg VA RONKVALKXJY  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 244   2008-02-29   
540-605 9 Blacksburg VA RONKVALKXJY  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 244   2008-02-15   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.