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: 903

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
601-903 A Heidelberg MS JCSOMSGVDS0  5278 TELEPAK NETWORKS, INC. - MS 482      

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

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