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: 658

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-658 A Omro WI GNBYWI01VMD  225C ONVOY, LLC - WI 350      
920-658 2 Omro WI   227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 350   2020-05-31   
920-658 3 Omro WI   6274 UNITED STATES CELLULAR - WI 350   2008-03-21   
920-658 4 Omro WI   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 350   2017-05-19   
920-658 5 Omro WI   007F BANDWIDTH.COM CLEC, LLC - WI 350   2012-01-15   
920-658 6 Omro WI   624H ONVOY SPECTRUM, LLC 350   2021-06-21   
920-658 7 Omro WI   225C ONVOY, LLC - WI 350   2016-04-11   
920-658 8 Omro WI   766H INTEGRATED PATH COMMUNICATIONS, LLC - WI 350   2018-07-13   
920-658 9 Omro WI   227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 350   2016-01-30   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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