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: 578

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-578 A Markesan WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356      
920-578 0 Markesan WI MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2010-12-23   
920-578 1 Markesan WI MILWWI13XWX  506J TWILIO INTERNATIONAL, INC. 356   2021-06-28   
920-578 5 Markesan WI MILWWI12XTX  624H ONVOY SPECTRUM, LLC 356   2021-06-26   
920-578 8 Markesan WI MILWWIAUDS1  225C ONVOY, LLC - WI 356   2021-07-02   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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