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: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 616

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-616 A Freeport IL RCFRILRCMMD  6529 T-MOBILE USA, INC. 360      
815-616 0 Freeport IL   6529 T-MOBILE USA, INC. 360   2004-02-28   
815-616 1 Freeport IL   6529 T-MOBILE USA, INC. 360   2007-07-27   
815-616 2 Freeport IL   6529 T-MOBILE USA, INC. 360   2008-01-22   
815-616 3 Freeport IL   846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 360   2010-06-28   
815-616 4 Freeport IL   6529 T-MOBILE USA, INC. 360   2010-06-27   
815-616 5 Freeport IL   318J COMCAST IP PHONE, LLC 360   2006-08-15   
815-616 6 Freeport IL   6529 T-MOBILE USA, INC. 360   2014-12-05   
815-616 7 Freeport IL   6529 T-MOBILE USA, INC. 360   2013-09-01   
815-616 8 Freeport IL   318J COMCAST IP PHONE, LLC 360   2007-09-23   
815-616 9 Freeport IL   6529 T-MOBILE USA, INC. 360   2005-09-02   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.