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: 231

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
431-231 A Oxford House MB ODHSMB011MD  991B MTS COMMUNICATIONS INC. 888 808808    

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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