Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 431 [Rate centres in NPA 431] [Dial plan for NPA 431]

NXX: 321

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
431-321 A Clear Lake MB CLLKMB011MD  991B MTS COMMUNICATIONS INC. 888 808801    

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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