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: 785

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-785 A Cuba IL CUBAILXDDS0  1015 FRONTIER NORTH, INC. - IL 368      
309-785 1 Cuba IL   984E BANDWIDTH.COM CLEC, LLC - IL 368   2020-02-21   
309-785 2 Cuba IL   224C ONVOY, LLC 368   2018-08-02   
309-785 3 Cuba IL   224C ONVOY, LLC 368   2021-04-03   
309-785 4 Cuba IL   624H ONVOY SPECTRUM, LLC 368   2021-07-22   
309-785 5 Cuba IL   1015 FRONTIER NORTH, INC. - IL 368      
309-785 6 Cuba IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 368   2026-01-18   
309-785 7 Cuba IL   318J COMCAST IP PHONE, LLC 368   2008-06-15   
309-785 8 Cuba IL   1015 FRONTIER NORTH, INC. - IL 368      
309-785 9 Cuba IL   495J STRATUS NETWORKS 368   2020-08-03   

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

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