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: 816 [Rate centres in NPA 816] [Dial plan for NPA 816]

NXX: 544

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
816-544 A Osborn MO KSCYMO55X0Z  965H FRACTEL, LLC 524      
816-544 0 Osborn MO KSCYMO55XSY  073H TELNYX LLC 524   2020-10-31   
816-544 1 Osborn MO KSCYMO55XPY  939H COMMIO, LLC 524   2021-06-19   
816-544 2 Osborn MO KSCYMO55XXX  093F ONVOY, LLC - MO 524   2021-05-15   
816-544 3 Osborn MO KSCYMO55XPY  939H COMMIO, LLC 524   2021-06-19   
816-544 4 Osborn MO   965H FRACTEL, LLC 524   2020-10-30   
816-544 5 Osborn MO KSCYMO55XYY  624H ONVOY SPECTRUM, LLC 524   2025-01-12   
816-544 7 Osborn MO KSCYMO55XPY  939H COMMIO, LLC 524   2021-06-19   
816-544 8 Osborn MO KSCYMO55XPY  939H COMMIO, LLC 524   2021-06-19   
816-544 9 Osborn MO KSCYMO55XPY  939H COMMIO, LLC 524   2021-06-19   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.