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: 636 [Rate centres in NPA 636] [Dial plan for NPA 636]

NXX: 828

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-828 A New Melle MO NWMLMOXARS0  9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-828 0 New Melle MO   073H TELNYX LLC 520   2020-08-07   
636-828 1 New Melle MO   490J DISH WIRELESS, LLC 520   2022-09-09   
636-828 2 New Melle MO   6123 TELEPORT COMMUNICATIONS AMERICA, LLC - MO 520   2019-02-21   
636-828 3 New Melle MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2013-10-14   
636-828 4 New Melle MO   9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-828 5 New Melle MO   9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-828 6 New Melle MO   145J TERRA NOVA TELECOM INC. 520   2025-05-30   
636-828 8 New Melle MO   093F ONVOY, LLC - MO 520   2021-06-19   
636-828 9 New Melle MO   093F ONVOY, LLC - MO 520   2021-06-19   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.