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: MILWWI31DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
262-252 A Menomonee Falls WI 9327 WISCONSIN BELL INC 356      
262-373 A Milwaukee Zone 2 WI 9327 WISCONSIN BELL INC 356      
262-703 A Menomonee Falls WI 9327 WISCONSIN BELL INC 356      
262-704 A Menomonee Falls WI 9327 WISCONSIN BELL INC 356      
262-781 A Milwaukee Zone 2 WI 9327 WISCONSIN BELL INC 356      
262-783 A Milwaukee Zone 2 WI 9327 WISCONSIN BELL INC 356      
262-790 A Milwaukee Zone 2 WI 9327 WISCONSIN BELL INC 356      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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