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: 219

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-219 A Houstonia MO KSCZMODR3MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524      
660-219 0 Houstonia MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524      
660-219 1 Houstonia MO   073H TELNYX LLC 524   2020-07-31   
660-219 4 Houstonia MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524      
660-219 7 Houstonia MO   508J CENTURYLINK COMMUNICATIONS, LLC 524   2013-11-04   
660-219 9 Houstonia MO   993E BANDWIDTH.COM CLEC, LLC - MO 524   2009-02-13   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.