Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 730 [Rate centres in NPA 730] [Dial plan for NPA 730]

NXX: 304

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
730-304 A Granite City IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-11-23   
730-304 9 Granite City IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2026-11-23   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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