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: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-421 A Alexandria MN STCDMNTOX0X  5256 LEVEL 3 COMMUNICATIONS, LLC - MN 626      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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