Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 218 [Rate centres in NPA 218] [Dial plan for NPA 218]

NXX: 740

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
218-740 A Duluth MN   184D ONVOY, LLC - MN 624      
218-740 1 Duluth MN   184D ONVOY, LLC - MN 624      
218-740 2 Duluth MN   184D ONVOY, LLC - MN 624      
218-740 3 Duluth MN   184D ONVOY, LLC - MN 624      
218-740 4 Duluth MN   184D ONVOY, LLC - MN 624      
218-740 5 Duluth MN   184D ONVOY, LLC - MN 624      
218-740 6 Duluth MN   184D ONVOY, LLC - MN 624      
218-740 7 Duluth MN   184D ONVOY, LLC - MN 624      

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

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