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.

NPA: 920 [Rate centres in NPA 920] [Dial plan for NPA 920]

NXX: 356

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-356 A Beaver Dam WI BVDMWI01DSA  9327 WISCONSIN BELL INC 356      
920-356 0 Beaver Dam WI BVDMWI01DSA  9327 WISCONSIN BELL INC 356      
920-356 1 Beaver Dam WI BVDMWI01DSA  9327 WISCONSIN BELL INC 356      
920-356 2 Beaver Dam WI BVDMWI01DSA  9327 WISCONSIN BELL INC 356      
920-356 5 Beaver Dam WI FDULWIGN0MD  3839 CHARTER FIBERLINK, LLC - WI 356   2016-07-12   
920-356 6 Beaver Dam WI BVDMWI01DSA  9327 WISCONSIN BELL INC 356      
920-356 7 Beaver Dam WI MILWWIAUXZZ  965H FRACTEL, LLC 356   2020-03-19   
920-356 8 Beaver Dam WI BVDMWI01DSA  9327 WISCONSIN BELL INC 356      
920-356 9 Beaver Dam WI BVDMWI01DSA  9327 WISCONSIN BELL INC 356      

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.