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: 977

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
540-977 A Roanoke VA RONKVABSRS0  9213 VERIZON VIRGINIA, INC. 244      
540-977 0 Roanoke VA   9213 VERIZON VIRGINIA, INC. 244      
540-977 1 Roanoke VA   9213 VERIZON VIRGINIA, INC. 244      
540-977 2 Roanoke VA   9213 VERIZON VIRGINIA, INC. 244      
540-977 3 Roanoke VA   9213 VERIZON VIRGINIA, INC. 244      
540-977 4 Roanoke VA   9213 VERIZON VIRGINIA, INC. 244      
540-977 5 Roanoke VA   9213 VERIZON VIRGINIA, INC. 244      
540-977 6 Roanoke VA   9213 VERIZON VIRGINIA, INC. 244      
540-977 7 Roanoke VA   145J TERRA NOVA TELECOM INC. 244   2021-06-14   
540-977 8 Roanoke VA   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244   2010-05-18   
540-977 9 Roanoke VA   9213 VERIZON VIRGINIA, INC. 244      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.