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: 333

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-333 A Macomb IL GLBGILXDEMD  6265 UNITED STATES CELLULAR - IL 977   2024-01-08   
309-333 0 Macomb IL   6265 UNITED STATES CELLULAR - IL 977      
309-333 1 Macomb IL   6265 UNITED STATES CELLULAR - IL 977      
309-333 2 Macomb IL   6265 UNITED STATES CELLULAR - IL 977      
309-333 3 Macomb IL   6265 UNITED STATES CELLULAR - IL 977      
309-333 4 Macomb IL   6265 UNITED STATES CELLULAR - IL 977      
309-333 5 Macomb IL   6265 UNITED STATES CELLULAR - IL 977      
309-333 6 Macomb IL   6265 UNITED STATES CELLULAR - IL 977      
309-333 7 Macomb IL   6265 UNITED STATES CELLULAR - IL 977      
309-333 8 Macomb IL   6265 UNITED STATES CELLULAR - IL 977      
309-333 9 Macomb IL   6265 UNITED STATES CELLULAR - IL 977      

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

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