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: 561

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
812-561 A Jasonville IN BLTNIN01X7Y  097D ONVOY, LLC - IN 338      
812-561 0 Jasonville IN   097D ONVOY, LLC - IN 338   2016-05-16   
812-561 1 Jasonville IN   097D ONVOY, LLC - IN 338   2016-05-16   
812-561 2 Jasonville IN   4803 LEVEL 3 COMMUNICATIONS, LLC - IN 338   2017-07-22   
812-561 3 Jasonville IN   097D ONVOY, LLC - IN 338   2019-11-18   
812-561 4 Jasonville IN   097D ONVOY, LLC - IN 338   2019-11-18   
812-561 5 Jasonville IN   097D ONVOY, LLC - IN 338   2020-05-16   
812-561 6 Jasonville IN   097D ONVOY, LLC - IN 338   2020-05-16   
812-561 7 Jasonville IN   097D ONVOY, LLC - IN 338   2020-05-16   
812-561 8 Jasonville IN   097D ONVOY, LLC - IN 338   2020-05-16   
812-561 9 Jasonville IN   073H TELNYX LLC 338   2020-07-06   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.