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: 854

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
540-854 A Unionville VA UNVLVAUVRS0  9213 VERIZON VIRGINIA, INC. 246      
540-854 0 Unionville VA UNVLVAUVRS0  9213 VERIZON VIRGINIA, INC. 246      
540-854 1 Unionville VA LSBGVALBZMD  8825 LEVEL 3 COMMUNICATIONS, LLC - VA 246   2006-11-08   
540-854 2 Unionville VA UNVLVAUVRS0  9213 VERIZON VIRGINIA, INC. 246      
540-854 3 Unionville VA   5832 CORETEL VIRGINIA, LLC - VA 246   2009-05-25   
540-854 4 Unionville VA UNVLVAUVRS0  9213 VERIZON VIRGINIA, INC. 246      
540-854 5 Unionville VA UNVLVAUVRS0  9213 VERIZON VIRGINIA, INC. 246      
540-854 6 Unionville VA UNVLVAUVRS0  9213 VERIZON VIRGINIA, INC. 246      
540-854 7 Unionville VA UNVLVAUVRS0  9213 VERIZON VIRGINIA, INC. 246      
540-854 8 Unionville VA UNVLVAUVRS0  9213 VERIZON VIRGINIA, INC. 246      
540-854 9 Unionville VA UNVLVAUVRS0  9213 VERIZON VIRGINIA, INC. 246      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.