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: 853

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-853 A Hilbert WI HLBRWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-853 1 Hilbert WI FDULWIGN1MD  792K CHARTER IP ENABLED SERVICES, LLC 356   2008-12-14   
920-853 2 Hilbert WI MILWWIAUDS1  225C ONVOY, LLC - WI 356   2023-07-09   
920-853 3 Hilbert WI HLBRWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-853 4 Hilbert WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2004-07-20   
920-853 5 Hilbert WI MILWWIAU00Z  145J TERRA NOVA TELECOM INC. 356   2026-06-05   
920-853 6 Hilbert WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2008-11-22   
920-853 7 Hilbert WI HLBRWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-853 8 Hilbert WI PEWTWICI2MD  6529 T-MOBILE USA, INC. 356   2024-03-21   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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