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: 299

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-299 A Vichy MO VCHYMOXARS0  9787 BRIGHTSPEED OF MISSOURI, LLC 520      
573-299 0 Vichy MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2009-01-18   
573-299 1 Vichy MO   093F ONVOY, LLC - MO 520   2019-05-20   
573-299 3 Vichy MO   093F ONVOY, LLC - MO 520   2018-12-07   
573-299 4 Vichy MO   9787 BRIGHTSPEED OF MISSOURI, LLC 520      
573-299 5 Vichy MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2005-02-19   
573-299 6 Vichy MO   073H TELNYX LLC 520   2020-08-08   
573-299 8 Vichy MO   093F ONVOY, LLC - MO 520   2019-05-20   
573-299 9 Vichy MO   145J TERRA NOVA TELECOM INC. 520   2025-07-14   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.