Local Calling Guide

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NPA: 854 [Rate centres in NPA 854] [Dial plan for NPA 854]

NXX: 306

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
854-306 A Charleston SC CHTNSCDT39Z  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 436   2026-05-26   
854-306 0 Charleston SC   548E ONVOY, LLC - SC 436   2026-08-14   
854-306 1 Charleston SC   548E ONVOY, LLC - SC 436   2026-08-14   
854-306 2 Charleston SC   548E ONVOY, LLC - SC 436   2026-08-14   
854-306 7 Charleston SC CHTNSCDT39Z  671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 436   2026-05-26   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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