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.

Switch: WASHMOBEPS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
573-345 6 Climax Springs MO 506E AURORA COMMUNICATIONS, INC. - MO 520   2009-06-13   
573-484 5 Beaufort MO 506E AURORA COMMUNICATIONS, INC. - MO 520   2008-10-10   
573-964 4 Lake Ozark-Osage Beach MO 506E AURORA COMMUNICATIONS, INC. - MO 520   2008-10-10   
636-322 3 St Clair MCA5 MO 506E AURORA COMMUNICATIONS, INC. - MO 520   2008-10-11   
636-392 A Washington MO 506E AURORA COMMUNICATIONS, INC. - MO 520      
636-392 9 Washington MO 506E AURORA COMMUNICATIONS, INC. - MO 520   2008-08-10   
636-582 A Union MO 506E AURORA COMMUNICATIONS, INC. - MO 520      
636-582 7 Union MO 506E AURORA COMMUNICATIONS, INC. - MO 520   2008-08-14   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.