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: 778

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-778 A Larsen WI APPLWI01XWX  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 350      
920-778 0 Larsen WI APPLWI01XWX  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 350      
920-778 1 Larsen WI GNBYWI01XMX  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 350   2023-11-23   
920-778 7 Larsen WI GNBYWI01VMD  624H ONVOY SPECTRUM, LLC 350   2021-06-21   
920-778 8 Larsen WI APPLWI01X9X  007F BANDWIDTH.COM CLEC, LLC - WI 350   2020-03-13   

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

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