Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 779 [Rate centres in NPA 779] [Dial plan for NPA 779]

NXX: 479

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-479 A Graymont IL BLTNILXDXMX  224C ONVOY, LLC 366      
779-479 0 Graymont IL   495J STRATUS NETWORKS 366   2021-06-19   
779-479 1 Graymont IL   073H TELNYX LLC 366   2021-10-01   
779-479 2 Graymont IL   224C ONVOY, LLC 366   2021-07-04   
779-479 4 Graymont IL   224C ONVOY, LLC 366   2021-06-19   
779-479 5 Graymont IL   624H ONVOY SPECTRUM, LLC 366   2023-06-02   
779-479 7 Graymont IL   224C ONVOY, LLC 366   2021-06-18   

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

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