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: 204

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
540-204 A Roanoke VA RONKVALKXLY  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 244      
540-204 0 Roanoke VA RONKVA95XSX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 244      
540-204 1 Roanoke VA RONKVA95XSX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 244      
540-204 2 Roanoke VA RONKVA95XSX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 244      
540-204 3 Roanoke VA RONKVA95XSX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 244      
540-204 4 Roanoke VA RONKVALKX2Z  318J COMCAST IP PHONE, LLC 244      
540-204 5 Roanoke VA RONKVALKXNY  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 244      
540-204 6 Roanoke VA RONKVALKXNY  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 244      
540-204 7 Roanoke VA RONKVALKXNY  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 244      
540-204 8 Roanoke VA RONKVALKXRX  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 244      
540-204 9 Roanoke VA RONKVALKXLY  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 244      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.