Local Calling Guide

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NPA: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]

NXX: 784

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-784 A Vermont IL VRMTILXDRS0  1015 FRONTIER NORTH, INC. - IL 977      
309-784 0 Vermont IL   508J CENTURYLINK COMMUNICATIONS, LLC 977   2014-07-29   
309-784 1 Vermont IL   224C ONVOY, LLC 977   2020-03-13   
309-784 2 Vermont IL   1015 FRONTIER NORTH, INC. - IL 977      
309-784 3 Vermont IL   224C ONVOY, LLC 977   2021-04-09   
309-784 4 Vermont IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 977   2005-04-14   
309-784 7 Vermont IL   624H ONVOY SPECTRUM, LLC 977   2023-07-29   
309-784 8 Vermont IL   1015 FRONTIER NORTH, INC. - IL 977      
309-784 9 Vermont IL   495J STRATUS NETWORKS 977   2021-02-28   

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

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