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: 608 [Rate centres in NPA 608] [Dial plan for NPA 608]

NXX: 957

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-957 A Madison WI MDSNWI11DS0  9327 WISCONSIN BELL INC 354      
608-957 0 Madison WI MDSNWI11DS0  9327 WISCONSIN BELL INC 354      
608-957 1 Madison WI MDSNWI11XNX  6529 T-MOBILE USA, INC. 354   2006-08-23   
608-957 2 Madison WI MDSNWI11XNX  6529 T-MOBILE USA, INC. 354   2006-08-23   
608-957 3 Madison WI MDSNWI11XNX  6529 T-MOBILE USA, INC. 354   2007-02-20   
608-957 4 Madison WI MDSNWI11XNX  6529 T-MOBILE USA, INC. 354   2007-02-20   
608-957 5 Madison WI MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2014-10-07   
608-957 6 Madison WI MDSNWI11XNX  6529 T-MOBILE USA, INC. 354   2006-06-30   
608-957 7 Madison WI MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2014-06-19   
608-957 8 Madison WI MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2010-09-19   
608-957 9 Madison WI MDSNWI11XNX  6529 T-MOBILE USA, INC. 354   2006-06-30   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.