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: 223 [Rate centres in NPA 223] [Dial plan for NPA 223]

NXX: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
223-666 A Harrisburg City Zone-1 PA HRBGPAGU5MD  965H FRACTEL, LLC 226      
223-666 0 Harrisburg City Zone-1 PA HRBGPAHAXUX  6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 226   2019-08-16   
223-666 1 Harrisburg City Zone-1 PA HRBGPAHAXUX  6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 226   2019-08-16   
223-666 2 Harrisburg City Zone-1 PA HRBGPAHAXRY  7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 226   2019-06-03   
223-666 3 Harrisburg City Zone-1 PA HRBGPAHAX9Z  547E ONVOY, LLC - PA 226   2019-09-19   
223-666 4 Harrisburg City Zone-1 PA HRBGPAHAX9Z  547E ONVOY, LLC - PA 226   2019-09-19   
223-666 5 Harrisburg City Zone-1 PA HRBGPAHAX9Z  547E ONVOY, LLC - PA 226   2019-09-19   
223-666 6 Harrisburg City Zone-1 PA HRBGPAGU5MD  965H FRACTEL, LLC 226   2019-03-26   
223-666 7 Harrisburg City Zone-1 PA HRBGPAGU0MD  939H COMMIO, LLC 226   2022-12-03   
223-666 8 Harrisburg City Zone-1 PA HRBGPAGU0MD  939H COMMIO, LLC 226   2022-12-03   
223-666 9 Harrisburg City Zone-1 PA HRBGPAGU0MD  939H COMMIO, LLC 226   2022-12-03   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.