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: 428

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-428 A Rockford IL RCFRILRTXDY  700J WAVENATION, LLC 360   2025-09-14   
779-428 0 Rockford IL RCFRILRTXDY  700J WAVENATION, LLC 360   2025-09-14   
779-428 8 Rockford IL RCFRILRTZMD  224C ONVOY, LLC 360   2026-05-03   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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