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: 507

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-507 A Geneseo IL CMBRILAD0MD  6265 UNITED STATES CELLULAR - IL 634      
309-507 0 Geneseo IL CMBRILAD0MD  6265 UNITED STATES CELLULAR - IL 634      
309-507 1 Geneseo IL CMBRILAD0MD  6265 UNITED STATES CELLULAR - IL 634      
309-507 2 Geneseo IL CMBRILAD0MD  6265 UNITED STATES CELLULAR - IL 634      
309-507 3 Geneseo IL CMBRILAD0MD  6265 UNITED STATES CELLULAR - IL 634      
309-507 4 Geneseo IL CMBRILAD0MD  6265 UNITED STATES CELLULAR - IL 634   2017-12-28   
309-507 6 Geneseo IL CMBRILAD0MD  6265 UNITED STATES CELLULAR - IL 634   2006-03-10   
309-507 8 Geneseo IL DVNPIAEAXMD  6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 634   2022-06-19   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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