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: 615

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
573-615 A Columbia MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521      
573-615 0 Columbia MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2017-04-06   
573-615 1 Columbia MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2017-04-06   
573-615 2 Columbia MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2017-04-06   
573-615 3 Columbia MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2017-04-06   
573-615 4 Columbia MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2017-04-06   
573-615 5 Columbia MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2017-04-06   
573-615 6 Columbia MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2017-04-06   
573-615 7 Columbia MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2017-04-06   
573-615 8 Columbia MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2017-04-06   
573-615 9 Columbia MO CLMAMOXAXIX  093F ONVOY, LLC - MO 521   2017-04-06   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.