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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-667 A Washington MO MRHGMOCJCM0  6664 SPRINT SPECTRUM L.P. 520      
636-667 0 Washington MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2004-07-18   
636-667 1 Washington MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2005-03-20   
636-667 2 Washington MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2005-07-31   
636-667 3 Washington MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2006-02-17   
636-667 4 Washington MO   6664 SPRINT SPECTRUM L.P. 520   2005-01-17   
636-667 5 Washington MO   6664 SPRINT SPECTRUM L.P. 520   2004-07-15   
636-667 6 Washington MO   6664 SPRINT SPECTRUM L.P. 520      
636-667 7 Washington MO   6664 SPRINT SPECTRUM L.P. 520      
636-667 8 Washington MO   6664 SPRINT SPECTRUM L.P. 520      
636-667 9 Washington MO   6664 SPRINT SPECTRUM L.P. 520      

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.