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: 300

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-300 A Rockford IL RCFRILRCMMD  6529 T-MOBILE USA, INC. 360      
779-300 0 Rockford IL   145J TERRA NOVA TELECOM INC. 360   2026-06-04   
779-300 7 Rockford IL RCFRILRCMMD  6529 T-MOBILE USA, INC. 360   2011-04-16   
779-300 8 Rockford IL RCFRILRCMMD  6529 T-MOBILE USA, INC. 360   2011-04-16   
779-300 9 Rockford IL RCFRILRCMMD  6529 T-MOBILE USA, INC. 360   2011-04-16   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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