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: 580

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-580 A Cherry Valley IL RCFRILRCSMD  7421 AT&T - LOCAL 360      
815-580 0 Cherry Valley IL RCFRILRTZMD  224C ONVOY, LLC 360   2019-05-04   
815-580 1 Cherry Valley IL RCFRILRTX4Y  318J COMCAST IP PHONE, LLC 360   2006-08-11   
815-580 2 Cherry Valley IL RCFRILRCJMD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 360   2014-06-29   
815-580 3 Cherry Valley IL RCFRILRTPMD  7196 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 360   2012-05-11   
815-580 4 Cherry Valley IL RCFRILRCJMD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 360   2004-07-16   
815-580 5 Cherry Valley IL RCFRILRTXRX  508J CENTURYLINK COMMUNICATIONS, LLC 360   2016-01-23   
815-580 6 Cherry Valley IL RCFRILRCX3X  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 360   2014-06-26   
815-580 7 Cherry Valley IL RCFRILRTXDX  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 360   2010-06-13   
815-580 8 Cherry Valley IL RCFRILRTX4Y  318J COMCAST IP PHONE, LLC 360   2007-09-23   
815-580 9 Cherry Valley IL RCFRILRCSMD  7421 AT&T - LOCAL 360   2003-05-19   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.