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.

Holstein, MO

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
636-932 A HOLSMOXARS0  9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-932 0 STLSMOWQ8MD  073H TELNYX LLC 520   2020-07-31   
636-932 1 OVLDMOBKDS0  5607 CHARTER FIBERLINK - MISSOURI, LLC - MO 520   2024-12-08   
636-932 4 HOLSMOXARS0  9787 BRIGHTSPEED OF MISSOURI, LLC 520      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.