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.

Poy Sippi, WI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
920-987 A PYSPWIXADS0  0841 BRIGHTSPEED OF WESTERN WISCONSIN, LLC 350      
920-987 0   623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 350   2022-04-10   
920-987 1   766H INTEGRATED PATH COMMUNICATIONS, LLC - WI 350   2018-07-13   
920-987 4   145J TERRA NOVA TELECOM INC. 350   2025-07-20   
920-987 5   0841 BRIGHTSPEED OF WESTERN WISCONSIN, LLC 350      
920-987 6   225C ONVOY, LLC - WI 350   2021-08-09   
920-987 7   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 350   2014-11-25   
920-987 8   0841 BRIGHTSPEED OF WESTERN WISCONSIN, LLC 350      
920-987 9   0841 BRIGHTSPEED OF WESTERN WISCONSIN, LLC 350      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.