Local Calling Guide

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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   9327 WISCONSIN BELL INC 354      
608-957 1 Madison WI   6529 T-MOBILE USA, INC. 354   2006-08-23   
608-957 2 Madison WI   6529 T-MOBILE USA, INC. 354   2006-08-23   
608-957 3 Madison WI   6529 T-MOBILE USA, INC. 354   2007-02-20   
608-957 4 Madison WI   6529 T-MOBILE USA, INC. 354   2007-02-20   
608-957 5 Madison WI   6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2014-10-07   
608-957 6 Madison WI   6529 T-MOBILE USA, INC. 354   2006-06-30   
608-957 7 Madison WI   007F BANDWIDTH.COM CLEC, LLC - WI 354   2014-06-19   
608-957 8 Madison WI   007F BANDWIDTH.COM CLEC, LLC - WI 354   2010-09-19   
608-957 9 Madison WI   6529 T-MOBILE USA, INC. 354   2006-06-30   

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

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