Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 601 [Rate centres in NPA 601] [Dial plan for NPA 601]

NXX: 257

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
601-257 A Forest MS JCSNMSPSX4Y  992E BANDWIDTH.COM CLEC, LLC - MS 482   2024-12-12   
601-257 0 Forest MS   6396 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MS 482   2026-01-12   
601-257 5 Forest MS   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 482   2025-12-12   

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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