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: 660 [Rate centres in NPA 660] [Dial plan for NPA 660]

NXX: 645

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-645 A Braymer MO BRYMMOXARS1  1151 BRIGHTSPEED OF EAST MISSOURI, LLC 524      
660-645 0 Braymer MO KSCYMO55XYY  624H ONVOY SPECTRUM, LLC 524   2021-11-18   
660-645 1 Braymer MO KSCYMO55XPY  939H COMMIO, LLC 524   2023-08-20   
660-645 2 Braymer MO BRYMMOXARS1  1151 BRIGHTSPEED OF EAST MISSOURI, LLC 524      
660-645 3 Braymer MO KSCYMO55XXX  093F ONVOY, LLC - MO 524   2021-05-15   
660-645 4 Braymer MO KSCYMO55XPY  939H COMMIO, LLC 524   2023-08-20   
660-645 5 Braymer MO KSCYMO55XPY  939H COMMIO, LLC 524   2023-08-20   
660-645 6 Braymer MO BRYMMOXARS1  1151 BRIGHTSPEED OF EAST MISSOURI, LLC 524      
660-645 7 Braymer MO KSCYMO55XPY  939H COMMIO, LLC 524   2023-08-20   
660-645 8 Braymer MO KSCYMO55XYY  624H ONVOY SPECTRUM, LLC 524   2021-07-03   
660-645 9 Braymer MO KSCYMO55XYY  624H ONVOY SPECTRUM, LLC 524   2021-11-18   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.