Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]

NXX: 221

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-221 A Galesburg IL GLBGILXDEMD  6265 UNITED STATES CELLULAR - IL 977      
309-221 0 Galesburg IL   6265 UNITED STATES CELLULAR - IL 977      
309-221 1 Galesburg IL   6265 UNITED STATES CELLULAR - IL 977      
309-221 2 Galesburg IL   6265 UNITED STATES CELLULAR - IL 977      
309-221 3 Galesburg IL   6265 UNITED STATES CELLULAR - IL 977      
309-221 4 Galesburg IL   6265 UNITED STATES CELLULAR - IL 977      
309-221 5 Galesburg IL   6265 UNITED STATES CELLULAR - IL 977      
309-221 6 Galesburg IL   6265 UNITED STATES CELLULAR - IL 977      
309-221 7 Galesburg IL   6265 UNITED STATES CELLULAR - IL 977      
309-221 8 Galesburg IL   6265 UNITED STATES CELLULAR - IL 977      
309-221 9 Galesburg IL   6265 UNITED STATES CELLULAR - IL 977      

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

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