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: 547

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
447-547 A Thawville IL CHMPILCPOMD  224C ONVOY, LLC 370      
447-547 0 Thawville IL CHMPILCPX0Y  073H TELNYX LLC 370   2021-10-07   
447-547 4 Thawville IL CHMPILCPOMD  224C ONVOY, LLC 370   2021-06-17   
447-547 5 Thawville IL CHMPILCPOMD  224C ONVOY, LLC 370   2021-07-04   
447-547 7 Thawville IL CHMPILCPOMD  224C ONVOY, LLC 370   2021-06-18   

Last updated: Wed, 07 Feb 2024 04:12:25 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.