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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 920 [Rate centres in NPA 920] [Dial plan for NPA 920]

NXX: 938

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-938 A Shiocton WI HULLWI01GT0  3839 CHARTER FIBERLINK, LLC - WI 350      
920-938 0 Shiocton WI HULLWI01GT0  3839 CHARTER FIBERLINK, LLC - WI 350   2007-05-28   
920-938 1 Shiocton WI APPLWI01X9X  007F BANDWIDTH.COM CLEC, LLC - WI 350   2017-11-02   
920-938 2 Shiocton WI APPLWI01XWX  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 350   2023-07-02   
920-938 3 Shiocton WI GNBYWI01VMD  225C ONVOY, LLC - WI 350   2019-08-29   
920-938 4 Shiocton WI GNBYWI01XHX  624H ONVOY SPECTRUM, LLC 350   2021-06-22   
920-938 5 Shiocton WI   6529 T-MOBILE USA, INC. 350   2025-02-22   
920-938 6 Shiocton WI   6529 T-MOBILE USA, INC. 350   2025-02-22   
920-938 7 Shiocton WI GNBYWIEL1MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 350   2014-11-24   
920-938 8 Shiocton WI GNBYWI01VMD  225C ONVOY, LLC - WI 350   2021-03-29   
920-938 9 Shiocton WI   766H INTEGRATED PATH COMMUNICATIONS, LLC - WI 350   2018-07-13   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.