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: 231

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
730-231 A East St Louis IL STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2024-03-10   
730-231 0 East St Louis IL   224C ONVOY, LLC 520   2024-03-12   
730-231 1 East St Louis IL   224C ONVOY, LLC 520   2024-03-12   
730-231 2 East St Louis IL   224C ONVOY, LLC 520   2024-03-12   
730-231 3 East St Louis IL   224C ONVOY, LLC 520   2024-03-12   
730-231 4 East St Louis IL   984E BANDWIDTH.COM CLEC, LLC - IL 520   2024-11-10   
730-231 5 East St Louis IL   624H ONVOY SPECTRUM, LLC 520   2025-01-04   
730-231 6 East St Louis IL   490J DISH WIRELESS, LLC 520   2024-10-14   
730-231 7 East St Louis IL   490J DISH WIRELESS, LLC 520   2025-02-28   
730-231 8 East St Louis IL   6529 T-MOBILE USA, INC. 520   2024-03-10   
730-231 9 East St Louis IL   6529 T-MOBILE USA, INC. 520   2024-03-10   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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