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: 785

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-785 A Watseka IL CHCGILACGT0  8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-785 0 Watseka IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2011-11-25   
815-785 1 Watseka IL   516C AT&T CORP. 358   2011-10-28   
815-785 2 Watseka IL   460K FIRST COMMUNICATIONS, LLC 358   2003-05-20   
815-785 3 Watseka IL   8702 RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 358      
815-785 4 Watseka IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2011-11-10   
815-785 5 Watseka IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2007-06-04   
815-785 6 Watseka IL   939H COMMIO, LLC 358   2022-02-24   
815-785 8 Watseka IL   829J PAETEC ITEL, LLC 358   2009-11-12   
815-785 9 Watseka IL   224C ONVOY, LLC 358   2012-09-30   

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.