Local Calling Guide

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NPA: 839 [Rate centres in NPA 839] [Dial plan for NPA 839]

NXX: 317

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
839-317 A Columbia SC   478J NUSO, LLC 434   2025-06-23   
839-317 1 Columbia SC   478J NUSO, LLC 434   2025-06-23   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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