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: 260

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
636-260 A St Charles MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2024-04-29   
636-260 0 St Charles MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2024-04-29   
636-260 1 St Charles MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2024-04-29   
636-260 2 St Charles MO STLSMOWQDS2  093F ONVOY, LLC - MO 520   2024-04-29   
636-260 3 St Charles MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2025-04-10   
636-260 8 St Charles MO STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2025-01-11   
636-260 9 St Charles MO NWTPMOABGT1  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-11-21   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.