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: 541

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
815-541 A Freeport IL RCFRILRTXGY  6265 UNITED STATES CELLULAR - IL 360      
815-541 0 Freeport IL   6265 UNITED STATES CELLULAR - IL 360      
815-541 1 Freeport IL   6265 UNITED STATES CELLULAR - IL 360      
815-541 2 Freeport IL   6265 UNITED STATES CELLULAR - IL 360      
815-541 3 Freeport IL   6265 UNITED STATES CELLULAR - IL 360      
815-541 4 Freeport IL   6265 UNITED STATES CELLULAR - IL 360      
815-541 5 Freeport IL   6265 UNITED STATES CELLULAR - IL 360      
815-541 6 Freeport IL   6265 UNITED STATES CELLULAR - IL 360      
815-541 7 Freeport IL   6265 UNITED STATES CELLULAR - IL 360      
815-541 8 Freeport IL   6265 UNITED STATES CELLULAR - IL 360      
815-541 9 Freeport IL   6265 UNITED STATES CELLULAR - IL 360      

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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