Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 815 [Rate centres in NPA 815] [Dial plan for NPA 815]

NXX: 885

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-885 A Rock Cut IL RCKTILXARS0  1015 FRONTIER NORTH, INC. - IL 360      
815-885 0 Rock Cut IL   073H TELNYX LLC 360   2020-07-19   
815-885 1 Rock Cut IL   1015 FRONTIER NORTH, INC. - IL 360      
815-885 2 Rock Cut IL   1015 FRONTIER NORTH, INC. - IL 360      
815-885 3 Rock Cut IL   1015 FRONTIER NORTH, INC. - IL 360      
815-885 4 Rock Cut IL   1015 FRONTIER NORTH, INC. - IL 360      
815-885 5 Rock Cut IL   224C ONVOY, LLC 360   2020-08-07   
815-885 6 Rock Cut IL   318J COMCAST IP PHONE, LLC 360   2006-08-09   
815-885 7 Rock Cut IL   846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 360   2010-06-13   
815-885 8 Rock Cut IL   318J COMCAST IP PHONE, LLC 360   2007-09-23   
815-885 9 Rock Cut IL   1015 FRONTIER NORTH, INC. - IL 360      

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

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