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: 757

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-757 A St Charles MO   829J PAETEC ITEL, LLC 520      
636-757 0 St Charles MO   829J PAETEC ITEL, LLC 520      
636-757 1 St Charles MO   829J PAETEC ITEL, LLC 520      
636-757 2 St Charles MO   829J PAETEC ITEL, LLC 520      
636-757 3 St Charles MO OVLDMOBKDS0  5607 CHARTER FIBERLINK - MISSOURI, LLC - MO 520      
636-757 4 St Charles MO STLSMOWQDS2  093F ONVOY, LLC - MO 520      
636-757 5 St Charles MO OVLDMOBKDS0  5607 CHARTER FIBERLINK - MISSOURI, LLC - MO 520      
636-757 6 St Charles MO   829J PAETEC ITEL, LLC 520      
636-757 7 St Charles MO   829J PAETEC ITEL, LLC 520      
636-757 8 St Charles MO   829J PAETEC ITEL, LLC 520      
636-757 9 St Charles MO   829J PAETEC ITEL, LLC 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.