Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 685L IMON COMMUNICATIONS, LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
218-605 A Duluth MN DLTHMNMEX6Y  624   2026-02-13   
218-605 1 Duluth MN DLTHMNMEX6Y  624   2026-02-13   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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