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Madison, WI

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
608-217 8 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354      
608-217 9 MDSNWI11X4Y  6529 T-MOBILE USA, INC. 354      
608-218 A MDSNWI13DS0  9327 WISCONSIN BELL INC 354      
608-218 0 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2011-08-13   
608-218 1 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2023-01-02   
608-218 2 MDSNWI13DS0  9327 WISCONSIN BELL INC 354      
608-218 3 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2012-09-20   
608-218 4 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2010-03-21   
608-218 5 MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2012-09-20   
608-218 6 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2025-02-28   
608-218 7 MDSNWI13DS0  9327 WISCONSIN BELL INC 354      
608-218 8 MDSNWI13DS0  9327 WISCONSIN BELL INC 354      
608-218 9 MDSNWI13DS0  9327 WISCONSIN BELL INC 354      
608-219 A MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-219 0 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-219 1 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-219 2 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-219 3 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-219 4 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-219 5 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-219 6 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-219 7 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-219 8 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-219 9 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-220 A MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-220 0 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-220 1 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-220 2 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-220 3 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-220 4 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-220 5 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-220 6 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-220 7 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-220 8 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-220 9 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-221 A MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-222 A MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-223 A MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-224 A MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-224 0 MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-224 1 MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-224 2 MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-224 3 MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-224 4 MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-224 5 MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-224 6 MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-224 7 MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-224 8 MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-224 9 MDSNWI11XEY  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 354   2011-02-14   
608-225 A MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-225 0 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-225 1 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-225 2 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-225 3 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-225 4 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-225 5 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-225 6 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-225 7 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-225 8 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-225 9 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-226 A MDSNWI14DS0  9327 WISCONSIN BELL INC 354      
608-227 A MDSNWIUQDS0  7588 CENTURYLINK COMMUNICATIONS LLC - WI 354      
608-227 2 MDSNWIUQDS0  7588 CENTURYLINK COMMUNICATIONS LLC - WI 354      
608-227 3 MDSNWIUQDS0  7588 CENTURYLINK COMMUNICATIONS LLC - WI 354      
608-227 4 MDSNWIUQDS0  7588 CENTURYLINK COMMUNICATIONS LLC - WI 354      
608-227 9 MDSNWIUQDS0  7588 CENTURYLINK COMMUNICATIONS LLC - WI 354      
608-228 A MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-228 0 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-228 1 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-228 2 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-228 3 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-228 4 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-228 5 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-228 6 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-228 7 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-228 8 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-228 9 MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-229 A MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354      
608-229 1 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2007-12-04   
608-229 2 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354      
608-229 4 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354      
608-229 5 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354      
608-229 6 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354      
608-229 7 MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354      
608-229 8 MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354      
608-230 A MDSNWIGJ5MD  520K TDS METROCOM, LLC 354      
608-230 0 FTBGWIDK1MD  792K CHARTER IP ENABLED SERVICES, LLC 354      
608-230 1 MDSNWIGJ5MD  520K TDS METROCOM, LLC 354      
608-230 2 MDSNWIGJ5MD  520K TDS METROCOM, LLC 354      
608-230 3 MDSNWIGJ5MD  520K TDS METROCOM, LLC 354      
608-230 4 MDSNWIGJ5MD  520K TDS METROCOM, LLC 354      
608-230 5 FTBGWIDK1MD  792K CHARTER IP ENABLED SERVICES, LLC 354   2006-10-10   
608-230 6 FTBGWIDK1MD  792K CHARTER IP ENABLED SERVICES, LLC 354   2004-04-13   
608-230 7 MDSNWIGJ5MD  520K TDS METROCOM, LLC 354      
608-230 8 MDSNWIGJ5MD  520K TDS METROCOM, LLC 354      
608-230 9 MDSNWIGJ5MD  520K TDS METROCOM, LLC 354      
608-231 A MDSNWI13DS0  9327 WISCONSIN BELL INC 354      
608-232 A MDSNWI13DS0  9327 WISCONSIN BELL INC 354      
608-232 0 MDSNWI13DS0  9327 WISCONSIN BELL INC 354      
608-232 1 MDSNWI13DS0  9327 WISCONSIN BELL INC 354      

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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