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: 220

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
812-220 A West Harrison IN CNCNOHFBDS0  8286 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 922      
812-220 0 West Harrison IN   073H TELNYX LLC 922   2018-07-10   
812-220 1 West Harrison IN   3638 CBTS TECHNOLOGY SOLUTIONS LLC - IN 922   2012-10-18   
812-220 2 West Harrison IN   105F BANDWIDTH.COM CLEC, LLC - IN 922   2018-12-14   
812-220 3 West Harrison IN   097D ONVOY, LLC - IN 922   2016-04-01   
812-220 4 West Harrison IN   4803 LEVEL 3 COMMUNICATIONS, LLC - IN 922   2004-07-17   
812-220 5 West Harrison IN   4803 LEVEL 3 COMMUNICATIONS, LLC - IN 922   2005-12-16   
812-220 6 West Harrison IN   073H TELNYX LLC 922   2019-12-05   
812-220 7 West Harrison IN   6725 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 922   2013-05-28   
812-220 8 West Harrison IN   6725 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN 922   2013-05-28   
812-220 9 West Harrison IN   8286 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN 922      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.