Local Calling Guide

Area code/prefix search

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

NXX: 722

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-722 A Madison WI MDSRWIKE6MD  321J HD CARRIER LLC 354      
608-722 0 Madison WI MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 1 Madison WI MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 2 Madison WI MDSNWI11X1X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 354   2021-01-12   
608-722 3 Madison WI MDSNWI11X1X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 354   2021-01-12   
608-722 4 Madison WI MDSNWI11X1X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 354   2021-01-12   
608-722 5 Madison WI MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 6 Madison WI MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2021-03-12   
608-722 7 Madison WI MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 8 Madison WI MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354   2021-05-10   
608-722 9 Madison WI MDSRWIKE6MD  321J HD CARRIER LLC 354   2020-11-23   

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

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