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: 447 [Rate centres in NPA 447] [Dial plan for NPA 447]

NXX: 272

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-272 A Ferris IL MCMBILXDX9X  224C ONVOY, LLC 977      
447-272 2 Ferris IL MCMBILXDX9X  224C ONVOY, LLC 977   2023-11-04   
447-272 4 Ferris IL MCMBILXDX5X  624H ONVOY SPECTRUM, LLC 977   2024-04-27   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.