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: 623

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
816-623 A Greenwood MO KSCYMO41DS0  9533 SOUTHWESTERN BELL 524      
816-623 0 Greenwood MO KSCYKSJOSMD  993E BANDWIDTH.COM CLEC, LLC - MO 524      
816-623 1 Greenwood MO KSCYMO55XXX  093F ONVOY, LLC - MO 524      
816-623 2 Greenwood MO KSCYMO55XXX  093F ONVOY, LLC - MO 524      
816-623 3 Greenwood MO KSCYMO41DS0  9533 SOUTHWESTERN BELL 524      
816-623 5 Greenwood MO KSCYMO55X1Z  318J COMCAST IP PHONE, LLC 524      
816-623 6 Greenwood MO KSCYKSJOSMD  993E BANDWIDTH.COM CLEC, LLC - MO 524      
816-623 7 Greenwood MO KSCAMO961MD  508J CENTURYLINK COMMUNICATIONS, LLC 524      
816-623 8 Greenwood MO KSCYMO55XXX  093F ONVOY, LLC - MO 524      
816-623 9 Greenwood MO KSCYMO41DS0  9533 SOUTHWESTERN BELL 524      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.