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: 346

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-346 A Herndon VA WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236      
571-346 0 Herndon VA WASKDCFNAMD  6827 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA 236      
571-346 1 Herndon VA STNGVA08AMD  4534 PAETEC COMMUNICATIONS OF VIRGINIA, LLC - VA 236      
571-346 2 Herndon VA WASHDCDP8MD  079F BANDWIDTH.COM CLEC, LLC - VA 236      
571-346 3 Herndon VA VINNVACBDS0  138E ONVOY, LLC - VA 236      
571-346 4 Herndon VA HRNDVAHEDS0  9213 VERIZON VIRGINIA, INC. 236      
571-346 5 Herndon VA HRNDVAHEDS0  9213 VERIZON VIRGINIA, INC. 236      
571-346 6 Herndon VA HRNDVAHEDS0  9213 VERIZON VIRGINIA, INC. 236      
571-346 7 Herndon VA STNGVA08AMD  4534 PAETEC COMMUNICATIONS OF VIRGINIA, LLC - VA 236      
571-346 8 Herndon VA HRNDVAHEDS0  9213 VERIZON VIRGINIA, INC. 236      
571-346 9 Herndon VA BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.