Local Calling Guide

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

NXX: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-203 A Rockford IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 360      
779-203 8 Rockford IL RCFRILRCJMD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 360   2012-11-10   
779-203 9 Rockford IL RCFRILRCJMD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 360   2014-02-02   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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