Local Calling Guide

Area code/prefix search

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NPA: 431 [Rate centres in NPA 431] [Dial plan for NPA 431]

NXX: 296

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
431-296 A Dugald MB WNPHMBCF6MD  4727 ISP TELECOM, INC. 888 808809    

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

Sponsored by: ISP Telecom

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