Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 320 [Rate centres in NPA 320] [Dial plan for NPA 320]

NXX: 588

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-588 A Finlayson MN STPLMNMKTMD  624H ONVOY SPECTRUM, LLC 628      
320-588 2 Finlayson MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628   2021-12-05   
320-588 5 Finlayson MN STPLMNMKTMD  624H ONVOY SPECTRUM, LLC 628   2021-08-20   
320-588 8 Finlayson MN MPLSMNCDDSC  184D ONVOY, LLC - MN 628   2021-09-27   

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

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