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: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-600 A Cold Spring MN STCDMNTOXNX  624H ONVOY SPECTRUM, LLC 626   2024-04-14   
320-600 0 Cold Spring MN STCDMNTOXNX  624H ONVOY SPECTRUM, LLC 626   2024-04-14   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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