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: GNBYWIEMCM6

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
920-255 A Kewaunee WI 5564 WISCONSIN RSA #10 LIMITED PARTNERSHIP 350      
920-373 A Abrams WI 6692 NEW CELL DBA CELLCOM 350      
920-421 A Baileys Harbor WI 6692 NEW CELL DBA CELLCOM 350      
920-493 A Sturgeon Bay WI 6692 NEW CELL DBA CELLCOM 350      
920-495 A Sturgeon Bay WI 6692 NEW CELL DBA CELLCOM 350      
920-604 A Abrams WI 6692 NEW CELL DBA CELLCOM 350      

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

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