Local Calling Guide

Area code/prefix search

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NPA: 779 [Rate centres in NPA 779] [Dial plan for NPA 779]

NXX: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-255 A De Kalb IL DIXNILXA4MD  224C ONVOY, LLC 364      
779-255 0 De Kalb IL   6333 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 364   2018-12-09   
779-255 1 De Kalb IL   224C ONVOY, LLC 364   2018-08-01   
779-255 2 De Kalb IL   5562 METROPCS, INC. 364   2018-10-21   
779-255 3 De Kalb IL   624H ONVOY SPECTRUM, LLC 364   2021-07-09   
779-255 4 De Kalb IL   624H ONVOY SPECTRUM, LLC 364   2021-07-09   
779-255 5 De Kalb IL   224C ONVOY, LLC 364   2018-10-01   
779-255 6 De Kalb IL   624H ONVOY SPECTRUM, LLC 364   2021-07-09   
779-255 7 De Kalb IL   624H ONVOY SPECTRUM, LLC 364   2021-10-21   
779-255 8 De Kalb IL   224C ONVOY, LLC 364   2023-06-05   
779-255 9 De Kalb IL   073H TELNYX LLC 364   2020-07-06   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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