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: 798

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-798 A Morehouse MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
573-798 0 Morehouse MO   093F ONVOY, LLC - MO 520   2016-10-21   
573-798 1 Morehouse MO   515J IP HORIZON LLC 520   2023-12-09   
573-798 2 Morehouse MO   515J IP HORIZON LLC 520   2023-12-09   
573-798 6 Morehouse MO   073H TELNYX LLC 520   2026-01-29   
573-798 7 Morehouse MO   093F ONVOY, LLC - MO 520   2021-07-24   
573-798 8 Morehouse MO   073H TELNYX LLC 520   2019-09-30   
573-798 9 Morehouse MO   624H ONVOY SPECTRUM, LLC 520   2025-01-11   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.