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: 371

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
816-371 A Lawson MO KSCZMODR3MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524      
816-371 0 Lawson MO KSCYMO55XSY  073H TELNYX LLC 524      
816-371 1 Lawson MO KSCYMO55XXX  093F ONVOY, LLC - MO 524      
816-371 2 Lawson MO KSCZMODR3MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524      
816-371 3 Lawson MO KSCYMO55XXX  093F ONVOY, LLC - MO 524      
816-371 4 Lawson MO KSCYMO55XXX  093F ONVOY, LLC - MO 524      
816-371 5 Lawson MO KSCYMO55XXX  093F ONVOY, LLC - MO 524      
816-371 7 Lawson MO KSCYMO55XXX  093F ONVOY, LLC - MO 524      
816-371 8 Lawson MO KSCYMO55XXX  093F ONVOY, LLC - MO 524      
816-371 9 Lawson MO KSCYMO55XXX  093F ONVOY, LLC - MO 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.