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.

Switch: MILWWIAUX7Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
262-380 A Big Bend WI 939H COMMIO, LLC 356      
262-386 A Genoa City WI 939H COMMIO, LLC 356      
262-390 A Sussex WI 939H COMMIO, LLC 356      
262-440 A Racine WI 939H COMMIO, LLC 356   2024-05-11   
414-370 A Milwaukee Zone 1 WI 939H COMMIO, LLC 356   2024-05-09   
414-867 A Milwaukee Zone 1 WI 939H COMMIO, LLC 356      
920-908 A Horicon WI 939H COMMIO, LLC 356      

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

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