Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 612 [Rate centres in NPA 612] [Dial plan for NPA 612]

NXX: 304

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
612-304 A Twin Cities MN MPLTMNZBAMD  5312 LEVEL 3 TELECOM OF MINNESOTA, LLC - MN 628      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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