Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 920 [Rate centres in NPA 920] [Dial plan for NPA 920]

NXX: 366

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-366 A Green Bay WI MNSHWIDQ1MD  6274 UNITED STATES CELLULAR - WI 350      

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

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