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: 777

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
730-777 A Carlyle IL STLSMOWQDS2  224C ONVOY, LLC 520   2024-11-13   
730-777 0 Carlyle IL STLSMOWQDS2  224C ONVOY, LLC 520   2024-11-13   
730-777 1 Carlyle IL STLSMO05XMX  624H ONVOY SPECTRUM, LLC 520   2025-01-04   
730-777 2 Carlyle IL   224C ONVOY, LLC 520   2025-10-04   
730-777 7 Carlyle IL STLSMOWQDS2  224C ONVOY, LLC 520   2024-11-13   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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