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: 661

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-661 A Old Monroe MCA5 MO OLMRMOXARS1  9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-661 0 Old Monroe MCA5 MO STLSMO05RMD  993E BANDWIDTH.COM CLEC, LLC - MO 520      
636-661 2 Old Monroe MCA5 MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
636-661 3 Old Monroe MCA5 MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
636-661 4 Old Monroe MCA5 MO   829J PAETEC ITEL, LLC 520      
636-661 5 Old Monroe MCA5 MO OLMRMOXARS1  9787 BRIGHTSPEED OF MISSOURI, LLC 520      
636-661 6 Old Monroe MCA5 MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
636-661 8 Old Monroe MCA5 MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.