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: 230

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
730-230 A Alton IL STLVMOOH6MD  6529 T-MOBILE USA, INC. 520   2024-01-29   
730-230 0 Alton IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-02-18   
730-230 1 Alton IL   224C ONVOY, LLC 520   2024-02-24   
730-230 2 Alton IL   224C ONVOY, LLC 520   2024-02-24   
730-230 3 Alton IL   224C ONVOY, LLC 520   2024-02-24   
730-230 4 Alton IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2024-11-20   
730-230 5 Alton IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-08-29   
730-230 6 Alton IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 520   2024-05-16   
730-230 7 Alton IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 520   2024-05-16   
730-230 8 Alton IL   6529 T-MOBILE USA, INC. 520   2024-01-29   
730-230 9 Alton IL   6529 T-MOBILE USA, INC. 520   2024-01-29   

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

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