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: 327

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
320-327 A Silver Lake MN SLLKMNXSRS0  1456 CENTURYLINK OF MINNESOTA, INC. 628      

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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