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: 573 [Rate centres in NPA 573] [Dial plan for NPA 573]

NXX: 704

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-704 A Ironton MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
573-704 0 Ironton MO   624H ONVOY SPECTRUM, LLC 520      
573-704 4 Ironton MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
573-704 5 Ironton MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.