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: 571 [Rate centres in NPA 571] [Dial plan for NPA 571]

NXX: 837

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-837 A Leesburg VA CLPPVA94IMD  516J TON80 COMMUNICATIONS, LLC 246      
571-837 0 Leesburg VA LSBGVALBX2X  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 246      
571-837 1 Leesburg VA LSBGVALBX2X  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 246      
571-837 2 Leesburg VA CLPPVACURMD  138E ONVOY, LLC - VA 246      
571-837 3 Leesburg VA CLPPVACURMD  138E ONVOY, LLC - VA 246      
571-837 4 Leesburg VA CLPPVA94IMD  516J TON80 COMMUNICATIONS, LLC 246      
571-837 5 Leesburg VA CLPPVA947MD  939H COMMIO, LLC 246      
571-837 6 Leesburg VA FRBGVAFBMMD  4644 TELEPORT COMMUNICATIONS AMERICA, LLC - VA 246      
571-837 7 Leesburg VA CLPPVA947MD  939H COMMIO, LLC 246      
571-837 8 Leesburg VA WNCHVAWC8MD  624H ONVOY SPECTRUM, LLC 246      
571-837 9 Leesburg VA CLPPVA947MD  939H COMMIO, LLC 246      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.