Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 920 [Rate centres in NPA 920] [Dial plan for NPA 920]

NXX: 937

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-937 A Oakfield WI MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
920-937 0 Oakfield WI MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356   2018-10-25   
920-937 2 Oakfield WI PLMOWIXAEMD  624H ONVOY SPECTRUM, LLC 356   2021-06-26   
920-937 3 Oakfield WI MILWWIAUDS1  225C ONVOY, LLC - WI 356   2020-04-19   
920-937 4 Oakfield WI MILWWIAUDS1  225C ONVOY, LLC - WI 356   2021-06-03   
920-937 6 Oakfield WI MILWWIAU03Z  516J TON80 COMMUNICATIONS, LLC 356   2021-09-05   
920-937 7 Oakfield WI MILWWIAUDS1  225C ONVOY, LLC - WI 356   2021-04-12   

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

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