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: 552

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-552 A Oostburg WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-552 0 Oostburg WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-552 1 Oostburg WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2021-08-30   
920-552 2 Oostburg WI PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2022-04-23   
920-552 4 Oostburg WI MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-552 5 Oostburg WI   793K TWC IP ENABLED SERVICES, LLC 356   2010-12-03   
920-552 6 Oostburg WI PLMOWIXAEMD  624H ONVOY SPECTRUM, LLC 356   2021-06-26   
920-552 7 Oostburg WI MILWWI45XBX  508J CENTURYLINK COMMUNICATIONS, LLC 356   2015-01-05   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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