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: 355

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-355 A Mapleton WI MPTNWIXARS0  0886 FRONTIER NORTH INC. - WI 356      
920-355 0 Mapleton WI   0886 FRONTIER NORTH INC. - WI 356      
920-355 1 Mapleton WI   007F BANDWIDTH.COM CLEC, LLC - WI 356   2011-01-06   
920-355 2 Mapleton WI   007F BANDWIDTH.COM CLEC, LLC - WI 356   2014-05-03   
920-355 3 Mapleton WI   007F BANDWIDTH.COM CLEC, LLC - WI 356   2016-08-26   
920-355 4 Mapleton WI   793K TWC IP ENABLED SERVICES, LLC 356   2007-03-27   
920-355 5 Mapleton WI   792K CHARTER IP ENABLED SERVICES, LLC 356   2023-06-04   
920-355 7 Mapleton WI   508J CENTURYLINK COMMUNICATIONS, LLC 356   2014-12-31   
920-355 8 Mapleton WI   225C ONVOY, LLC - WI 356   2019-04-04   
920-355 9 Mapleton WI   225C ONVOY, LLC - WI 356   2019-04-04   

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

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