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: 292

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
730-292 A East St Louis IL   224C ONVOY, LLC 520   2026-03-20   
730-292 0 East St Louis IL   224C ONVOY, LLC 520   2026-03-20   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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