Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 608 [Rate centres in NPA 608] [Dial plan for NPA 608]

NXX: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-421 A Madison WI MDSNWI11XYX  551G NUSO, LLC 354      
608-421 0 Madison WI MDSNWI11XNX  6529 T-MOBILE USA, INC. 354      
608-421 1 Madison WI MDSNWI11XYX  551G NUSO, LLC 354      
608-421 2 Madison WI MDSNWI11XNX  6529 T-MOBILE USA, INC. 354      
608-421 3 Madison WI MDSNWI11XNX  6529 T-MOBILE USA, INC. 354      
608-421 4 Madison WI MDSNWI11XNX  6529 T-MOBILE USA, INC. 354      
608-421 5 Madison WI MDSNWI11XSX  7322 LEVEL 3 TELECOM OF WISCONSIN, LP - WI 354      
608-421 6 Madison WI MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354      
608-421 7 Madison WI MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354      
608-421 8 Madison WI MDSNWI11XNX  6529 T-MOBILE USA, INC. 354      
608-421 9 Madison WI MDSNWI11XNX  6529 T-MOBILE USA, INC. 354      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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