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: 288

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-288 A Green Bay WI GNBYWI12DS0  9327 WISCONSIN BELL INC 350      
920-288 0 Green Bay WI GNBYWI12DS0  9327 WISCONSIN BELL INC 350      
920-288 1 Green Bay WI APPLWI01XEX  6529 T-MOBILE USA, INC. 350   2008-01-29   
920-288 2 Green Bay WI APPLWI01X9X  007F BANDWIDTH.COM CLEC, LLC - WI 350   2010-04-01   
920-288 3 Green Bay WI GNBYWI12DS0  9327 WISCONSIN BELL INC 350      
920-288 4 Green Bay WI GNBYWI12DS0  9327 WISCONSIN BELL INC 350      
920-288 5 Green Bay WI GNBYWI12DS0  9327 WISCONSIN BELL INC 350      
920-288 6 Green Bay WI GNBYWI12DS0  9327 WISCONSIN BELL INC 350      
920-288 7 Green Bay WI GNBYWI01XMX  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 350   2010-11-19   
920-288 8 Green Bay WI GNBYWI12DS0  9327 WISCONSIN BELL INC 350      
920-288 9 Green Bay WI APPLWI01XEX  6529 T-MOBILE USA, INC. 350   2010-02-23   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.