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: 291

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
730-291 A Belleville-Adams IL STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2026-02-19  2026-09-11 

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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