Local Calling Guide

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NPA: 920 [Rate centres in NPA 920] [Dial plan for NPA 920]

NXX: 564

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-564 A Oostburg WI OSBGWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-564 0 Oostburg WI   007F BANDWIDTH.COM CLEC, LLC - WI 356   2008-11-22   
920-564 1 Oostburg WI   145J TERRA NOVA TELECOM INC. 356   2025-08-21   
920-564 2 Oostburg WI   0886 FRONTIER NORTH INC. - WI 356      
920-564 3 Oostburg WI   0886 FRONTIER NORTH INC. - WI 356      
920-564 4 Oostburg WI   0886 FRONTIER NORTH INC. - WI 356      
920-564 5 Oostburg WI   793K TWC IP ENABLED SERVICES, LLC 356   2005-10-21   
920-564 6 Oostburg WI   0886 FRONTIER NORTH INC. - WI 356      
920-564 7 Oostburg WI   225C ONVOY, LLC - WI 356   2022-11-24   
920-564 8 Oostburg WI   225C ONVOY, LLC - WI 356   2023-07-09   
920-564 9 Oostburg WI   225C ONVOY, LLC - WI 356   2023-09-15   

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

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