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.

Switch: KSCCMOFO2MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
660-290 8 Smithton MO 073H TELNYX LLC 524   2022-06-06   
816-208 6 Leavenworth Lansing MO 073H TELNYX LLC 524   2022-04-24   
816-696 A Stewartsville MO 073H TELNYX LLC 524      
816-696 0 Stewartsville MO 073H TELNYX LLC 524   2021-07-01   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.