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.

Switch: DBLNVADUDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
540-643 A Dublin VA 9213 VERIZON VIRGINIA, INC. 244      
540-643 0 Dublin VA 9213 VERIZON VIRGINIA, INC. 244      
540-643 1 Dublin VA 9213 VERIZON VIRGINIA, INC. 244      
540-643 2 Dublin VA 9213 VERIZON VIRGINIA, INC. 244      
540-674 A Dublin VA 9213 VERIZON VIRGINIA, INC. 244      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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