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: 489

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
601-489 A Collins MS CLNSMSMAXMD  4664 CENTURYLINK COMMUNICATIONS LLC - MS 482      
601-489 8 Collins MS   719E ONVOY, LLC - MS 482   2025-10-26   
601-489 9 Collins MS   4664 CENTURYLINK COMMUNICATIONS LLC - MS 482      

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

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