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: 812 [Rate centres in NPA 812] [Dial plan for NPA 812]

NXX: 624

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
812-624 A St Joseph IN EVVLIN03XBY  793K TWC IP ENABLED SERVICES, LLC 330   2025-01-14   
812-624 0 St Joseph IN   793K TWC IP ENABLED SERVICES, LLC 330      
812-624 1 St Joseph IN   4803 LEVEL 3 COMMUNICATIONS, LLC - IN 330   2010-02-20   
812-624 2 St Joseph IN   793K TWC IP ENABLED SERVICES, LLC 330      
812-624 4 St Joseph IN   097D ONVOY, LLC - IN 330   2020-11-14   
812-624 5 St Joseph IN   4803 LEVEL 3 COMMUNICATIONS, LLC - IN 330   2008-11-27   
812-624 6 St Joseph IN   097D ONVOY, LLC - IN 330   2019-08-03   
812-624 7 St Joseph IN   4803 LEVEL 3 COMMUNICATIONS, LLC - IN 330   2005-03-28   
812-624 8 St Joseph IN   097D ONVOY, LLC - IN 330   2019-08-03   
812-624 9 St Joseph IN   793K TWC IP ENABLED SERVICES, LLC 330      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.