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: GNBYWIEL8MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
534-888 A Waupaca WI 145J TERRA NOVA TELECOM INC. 350      
920-558 9 Neenah WI 145J TERRA NOVA TELECOM INC. 350   2024-12-05   
920-712 7 Green Bay WI 145J TERRA NOVA TELECOM INC. 350   2024-09-14   
920-713 7 Green Bay WI 145J TERRA NOVA TELECOM INC. 350   2024-02-07   
920-714 4 Appleton WI 145J TERRA NOVA TELECOM INC. 350   2024-08-29   
920-744 8 Oshkosh WI 145J TERRA NOVA TELECOM INC. 350   2024-12-05   
920-998 8 Van Dyne WI 145J TERRA NOVA TELECOM INC. 350   2024-12-02   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.