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: 415

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-415 A Melrose MN   792K CHARTER IP ENABLED SERVICES, LLC 626   2025-03-18   
320-415 0 Melrose MN   792K CHARTER IP ENABLED SERVICES, LLC 626   2019-07-19   
320-415 2 Melrose MN STCDMNTOX0X  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 626   2020-11-23   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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