Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 6265 UNITED STATES CELLULAR - IL

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
815-766 2 De Kalb IL   364      
815-821 A Freeport IL RCFRILRTXGY  360      
815-821 0 Freeport IL   360   2021-09-25   
815-821 1 Freeport IL   360   2004-03-05   
815-821 2 Freeport IL   360   2004-03-05   
815-821 3 Freeport IL   360   2004-03-05   
815-821 4 Freeport IL   360   2004-03-05   
815-821 5 Freeport IL   360   2004-03-05   
815-858 0 Elizabeth IL   360   2015-08-11   
815-858 4 Elizabeth IL   360   2004-06-29   
815-858 5 Elizabeth IL   360   2004-06-29   
815-858 8 Elizabeth IL   360   2018-09-01   
815-871 A Rockford IL RCFRILRTXGY  360      
815-930 1 Elizabeth IL   360   2020-09-24   
815-930 2 Elizabeth IL   360   2022-12-16   
815-930 4 Elizabeth IL   360   2022-12-16   
815-973 A Dixon IL DKLBILRS3MD  364      
815-977 0 Rockford IL   360   2004-10-25   
815-977 1 Rockford IL   360   2004-10-25   
815-988 A Rockford IL RCFRILRTXGY  360      
815-994 0 Dixon IL   364   2004-10-21   
815-994 2 Dixon IL   364   2004-10-21   
815-994 3 Dixon IL   364   2004-10-21   

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

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