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: 356

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
540-356 A Hartwood VA LSBGVALBX7X  318J COMCAST IP PHONE LLC 246   2021-02-02   
540-356 0 Hartwood VA LSBGVALBX7X  318J COMCAST IP PHONE LLC 246   2012-06-22   
540-356 1 Hartwood VA CLPPVA940MD  5562 METROPCS, INC. 246   2014-10-24   
540-356 2 Hartwood VA CLPPVA940MD  5562 METROPCS, INC. 246   2014-12-15   
540-356 3 Hartwood VA FRBGVAFBJMD  079F BANDWIDTH.COM CLEC, LLC - VA 246   2015-02-15   
540-356 4 Hartwood VA CLPPVACU3MD  508J CENTURYLINK COMMUNICATIONS LLC 246   2014-07-18   
540-356 5 Hartwood VA LSBGVALBX7X  318J COMCAST IP PHONE LLC 246   2013-12-29   
540-356 6 Hartwood VA FRBGVAFBMMD  4644 TELEPORT COMMUNICATIONS AMERICA, LLC - VA 246   2012-10-09   
540-356 7 Hartwood VA FRBGVAFBMMD  4644 TELEPORT COMMUNICATIONS AMERICA, LLC - VA 246   2012-10-09   
540-356 8 Hartwood VA FRBGVAFBMMD  4644 TELEPORT COMMUNICATIONS AMERICA, LLC - VA 246   2012-10-09   
540-356 9 Hartwood VA FRBGVAFBDMD  7189 COX VIRGINIA TELCOM, INC. - VA 246   2016-01-22   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.