Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 507 [Rate centres in NPA 507] [Dial plan for NPA 507]

NXX: 566

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
507-566 A Winnebago MN OWTNMNOWTMD  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620      
507-566 1 Winnebago MN OWTNMNOWTMD  719F MCC TELEPHONY OF MINNESOTA, LLC - MN 620   2010-05-29   
507-566 6 Winnebago MN ROCHMNROXVX  965H FRACTEL, LLC 620   2020-11-05   
507-566 7 Winnebago MN   5256 LEVEL 3 COMMUNICATIONS, LLC - MN 620   2026-04-02   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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