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: 400

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-400 A Portage des Sioux MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
636-400 0 Portage des Sioux MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
636-400 1 Portage des Sioux MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
636-400 2 Portage des Sioux MO STLSMOGZDS5  225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520      
636-400 3 Portage des Sioux MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520      
636-400 4 Portage des Sioux MO   965H FRACTEL, LLC 520      
636-400 5 Portage des Sioux MO STLSMOGZDS5  225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520      
636-400 6 Portage des Sioux MO STLSMOGZDS5  225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520      
636-400 7 Portage des Sioux MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520      
636-400 8 Portage des Sioux MO   515J IP HORIZON LLC 520      
636-400 9 Portage des Sioux MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.