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: 587

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
779-587 A Sterling IL   883K AHOI LLC 364   2026-05-16   
779-587 8 Sterling IL   883K AHOI LLC 364   2026-05-16   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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