Local Calling Guide

Area code/prefix search

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NPA: 730 [Rate centres in NPA 730] [Dial plan for NPA 730]

NXX: 281

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
730-281 A Oakdale IL SWNSILBL0MD  792K CHARTER IP ENABLED SERVICES, LLC 520   2025-10-23   
730-281 1 Oakdale IL SWNSILBL0MD  792K CHARTER IP ENABLED SERVICES, LLC 520   2025-10-23   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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