Local Calling Guide

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

NXX: 245

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-245 A Farmington IL FRTNILFMRS0  9329 ILLINOIS BELL TEL CO 368      
309-245 0 Farmington IL   224C ONVOY, LLC 368   2018-09-16   
309-245 1 Farmington IL   984E BANDWIDTH.COM CLEC, LLC - IL 368   2018-10-07   
309-245 2 Farmington IL   9329 ILLINOIS BELL TEL CO 368      
309-245 3 Farmington IL   224C ONVOY, LLC 368   2019-07-15   
309-245 4 Farmington IL   9329 ILLINOIS BELL TEL CO 368      
309-245 5 Farmington IL   455H CENTURY ENTERPRISES, INC. - IL 368   2017-10-15   
309-245 6 Farmington IL   224C ONVOY, LLC 368   2018-07-15   
309-245 7 Farmington IL   224C ONVOY, LLC 368   2019-07-15   
309-245 8 Farmington IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 368   2018-11-08   
309-245 9 Farmington IL   9329 ILLINOIS BELL TEL CO 368      

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

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