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: 524

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-524 A Brillion WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-524 1 Brillion WI   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2005-09-10   
920-524 2 Brillion WI   792K CHARTER IP ENABLED SERVICES, LLC 356   2007-04-15   
920-524 4 Brillion WI   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-524 6 Brillion WI   490J DISH WIRELESS, LLC 356   2023-11-08   
920-524 7 Brillion WI   508J CENTURYLINK COMMUNICATIONS, LLC 356   2014-12-06   
920-524 8 Brillion WI   495J STRATUS NETWORKS 356   2021-03-31   
920-524 9 Brillion WI   007F BANDWIDTH.COM CLEC, LLC - WI 356   2008-11-22   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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