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: 308

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
223-308 A Millersville PA HRBGPAHAXCY  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 226      
223-308 0 Millersville PA   5562 METROPCS, INC. 226   2019-01-07   
223-308 1 Millersville PA   547E ONVOY, LLC - PA 226   2024-06-07   
223-308 2 Millersville PA   967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 226   2020-05-30   
223-308 3 Millersville PA   967E PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA 226   2020-06-28   
223-308 4 Millersville PA   547E ONVOY, LLC - PA 226   2020-10-30   
223-308 6 Millersville PA   547E ONVOY, LLC - PA 226   2021-02-20   
223-308 7 Millersville PA   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 226   2018-10-26   
223-308 8 Millersville PA   547E ONVOY, LLC - PA 226   2020-10-30   
223-308 9 Millersville PA   002F BANDWIDTH.COM CLEC, LLC - PA 226   2020-03-07   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.