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: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-310 A Kewaunee WI APPLWI01X9X  007F BANDWIDTH.COM CLEC, LLC - WI 350      
920-310 0 Kewaunee WI   007F BANDWIDTH.COM CLEC, LLC - WI 350   2015-06-29   
920-310 1 Kewaunee WI   227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 350   2016-01-30   
920-310 2 Kewaunee WI   225C ONVOY, LLC - WI 350   2016-04-11   
920-310 3 Kewaunee WI   225C ONVOY, LLC - WI 350   2016-04-11   
920-310 4 Kewaunee WI   7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 350   2016-02-15   
920-310 5 Kewaunee WI   766H INTEGRATED PATH COMMUNICATIONS, LLC - WI 350   2018-07-12   
920-310 6 Kewaunee WI   225C ONVOY, LLC - WI 350   2018-09-13   
920-310 7 Kewaunee WI   225C ONVOY, LLC - WI 350   2016-05-04   
920-310 8 Kewaunee WI   225C ONVOY, LLC - WI 350   2016-05-04   
920-310 9 Kewaunee WI   225C ONVOY, LLC - WI 350   2024-01-08   

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.