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: 922

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-922 A Harvester MO HVTRMO67DSA  9533 SOUTHWESTERN BELL 520      
636-922 0 Harvester MO HVTRMO67DSA  9533 SOUTHWESTERN BELL 520      
636-922 1 Harvester MO HVTRMO67DSA  9533 SOUTHWESTERN BELL 520      
636-922 2 Harvester MO HVTRMO67DSA  9533 SOUTHWESTERN BELL 520      
636-922 3 Harvester MO HVTRMO67DSA  9533 SOUTHWESTERN BELL 520      
636-922 4 Harvester MO HVTRMO67DSA  9533 SOUTHWESTERN BELL 520      
636-922 5 Harvester MO HVTRMO67DSA  9533 SOUTHWESTERN BELL 520      
636-922 6 Harvester MO STLSMOZCDS2  554A SOCKET TELECOM, LLC - MO 520   2007-03-11   
636-922 7 Harvester MO HVTRMO67DSA  9533 SOUTHWESTERN BELL 520      
636-922 8 Harvester MO HVTRMO67DSA  9533 SOUTHWESTERN BELL 520      
636-922 9 Harvester MO HVTRMO67DSA  9533 SOUTHWESTERN BELL 520      

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.