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: 290

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
601-290 A De Kalb MS JCSNMSCPXMZ  719E ONVOY, LLC - MS 482   2024-12-05   
601-290 0 De Kalb MS JCSNMSCPXMZ  719E ONVOY, LLC - MS 482      

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

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