Local Calling Guide

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

NXX: 668

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-668 A Rockford IL RCFRILRTZMD  224C ONVOY, LLC 360      
815-668 0 Rockford IL   224C ONVOY, LLC 360   2009-05-17   
815-668 1 Rockford IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 360   2010-03-22   
815-668 2 Rockford IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 360   2010-06-01   
815-668 3 Rockford IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 360   2010-09-03   
815-668 4 Rockford IL   829J PAETEC ITEL, LLC 360   2009-11-03   
815-668 5 Rockford IL   6529 T-MOBILE USA, INC. 360   2010-08-12   
815-668 6 Rockford IL   6529 T-MOBILE USA, INC. 360   2010-08-12   
815-668 7 Rockford IL   829J PAETEC ITEL, LLC 360   2010-09-19   
815-668 8 Rockford IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 360   2010-09-24   
815-668 9 Rockford IL   6529 T-MOBILE USA, INC. 360   2010-09-30   

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

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