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: 319

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-319 A Rockford IL RCFRILRTXGY  6265 UNITED STATES CELLULAR - IL 360      
815-319 0 Rockford IL   6529 T-MOBILE USA, INC. 360   2006-02-03   
815-319 1 Rockford IL   6529 T-MOBILE USA, INC. 360   2006-03-24   
815-319 2 Rockford IL   6529 T-MOBILE USA, INC. 360   2006-03-24   
815-319 3 Rockford IL   6529 T-MOBILE USA, INC. 360   2008-03-24   
815-319 4 Rockford IL   9329 ILLINOIS BELL TEL CO 360   2005-12-12   
815-319 5 Rockford IL   6529 T-MOBILE USA, INC. 360   2008-04-18   
815-319 6 Rockford IL   9329 ILLINOIS BELL TEL CO 360   2005-12-12   
815-319 7 Rockford IL   6265 UNITED STATES CELLULAR - IL 360      
815-319 8 Rockford IL   5562 METROPCS, INC. 360   2011-10-20   
815-319 9 Rockford IL   5562 METROPCS, INC. 360   2011-10-20   

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

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