| 1 | AS10796 | Charter Communications (10796) | Upstream | 733 | |
| 2 | AS20115 | Charter Communications | Upstream | 385 | |
| 3 | AS21554 | Wisconsin CyberLynk Network, Inc. | Downstream | 122 | |
| 4 | AS16399 | First Communications LLC | Downstream | 54 | |
| 5 | AS22809 | American Family Insurance | Downstream | 36 | |
| 6 | AS33395 | RMM Solutions Inc | Downstream | 33 | |
| 7 | AS32625 | OFFSITE, LLC | Downstream | 33 | |
| 8 | AS53420 | Merge Healthcare Solutions Inc. | Downstream | 27 | |
| 9 | AS13567 | Kimberly-Clark Corporation | Downstream | 26 | |
| 10 | AS394621 | Data Holdings | Pirinq | 25 | |
| 11 | AS32149 | WEBTEAM, INC | Downstream | 20 | |
| 12 | AS22955 | Children's Hospital & Health System, Inc. | Downstream | 17 | |
| 13 | AS12047 | Gundersen Lutheran Medical Center, Inc. | Downstream | 17 | |
| 14 | AS36724 | Hanson Communications, Inc. | Downstream | 16 | |
| 15 | AS23039 | Bell Ambulance, Inc. | Downstream | 16 | |
| 16 | AS33127 | Integrated Systems Corp | Downstream | 15 | |
| 17 | AS22223 | MVTV Wireless | Downstream | 15 | |
| 18 | AS14440 | Citon Computer Corp | Pirinq | 14 | |
| 19 | AS25794 | Dairyland Power Cooperative | Downstream | 13 | |
| 20 | AS33596 | Brunswick Corporation | Downstream | 12 | |
| 21 | AS21896 | Alliant Energy | Downstream | 12 | |
| 22 | AS17164 | CentraCare Health | Downstream | 12 | |
| 23 | AS402035 | Sergeant Laboratories, Inc | Downstream | 11 | |
| 24 | AS25958 | Marshfield Clinic Inc. | Downstream | 11 | |
| 25 | AS397171 | Green Bay Packaging, INC | Downstream | 10 | |
| 26 | AS395526 | Regal Rexnord Corporation | Downstream | 10 | |
| 27 | AS40479 | Aurora Health Care, Inc. | Downstream | 10 | |
| 28 | AS13376 | MERRILL-GERMANY | Downstream | 9 | |
| 29 | AS400013 | Waupaca Foundry, Inc. | Downstream | 8 | |
| 30 | AS55208 | Navitus Health Solutions, LLC | Downstream | 8 | |
| 31 | AS33468 | Locknet | Downstream | 8 | |
| 32 | AS22344 | ABC Supply Co. | Downstream | 8 | |
| 33 | AS21801 | Jewelers Mutual Insurance Company | Downstream | 8 | |
| 34 | AS15285 | Cash Depot | Downstream | 8 | |
| 35 | AS11595 | Netsonic | Downstream | 8 | |
| 36 | AS6341 | WEC Business Services LLC | Downstream | 8 | |
| 37 | AS1437 | Visonex LLC | Downstream | 8 | |
| 38 | AS395086 | SC Data Center, Inc. | Downstream | 7 | |
| 39 | AS40238 | Jostens | Downstream | 7 | |
| 40 | AS33753 | West Bend Mutual Insurance Company | Downstream | 7 | |
| 41 | AS33283 | MC Services | Downstream | 7 | |
| 42 | AS16542 | Mortgage Gauranty Insurance Corp | Downstream | 7 | |
| 43 | AS11964 | Air Wisconsin Airlines Corporation | Downstream | 7 | |
| 44 | AS10634 | iNET Computers, Inc. | Downstream | 7 | |
| 45 | AS395972 | Schreiber Foods, Inc. | Downstream | 6 | |
| 46 | AS394049 | University of Wisconsin Hospital and Clinics | Downstream | 6 | |
| 47 | AS53595 | Oshkosh Corporation | Downstream | 6 | |
| 48 | AS35997 | UFS LLC | Downstream | 6 | |
| 49 | AS32268 | Artisan Partners Limited Partnership | Downstream | 6 | |
| 50 | AS31973 | Wisconsin Physicians Service Insurance Corp. | Downstream | 6 | |
| 51 | AS31785 | Heartland Business Systems | Downstream | 6 | |
| 52 | AS19284 | Compeer Financial, ACA | Downstream | 6 | |
| 53 | AS17009 | Shopko Optical | Downstream | 6 | |
| 54 | AS396152 | The Monroe Clinic, Inc. | Downstream | 5 | |
| 55 | AS13731 | Oneida Nation | Downstream | 5 | |
| 56 | AS401554 | Upland Hills Health | Downstream | 4 | |
| 57 | AS401153 | AgVantage Software, Inc | Downstream | 4 | |
| 58 | AS401114 | Columbia County | Downstream | 4 | |
| 59 | AS399329 | Endries International, Inc. | Downstream | 4 | |
| 60 | AS398428 | N&M Transfer Co., Inc. | Downstream | 4 | |
| 61 | AS398426 | Apogee Telecom Inc. | Downstream | 4 | |
| 62 | AS397697 | Wright-Hennepin Cooperative Electric Association | Downstream | 4 | |
| 63 | AS396383 | SECURA INSURANCE HOLDINGS, INC. | Downstream | 4 | |
| 64 | AS394673 | Milwaukee Area Technical College | Downstream | 4 | |
| 65 | AS393695 | Cooperative Response Center | Downstream | 4 | |
| 66 | AS54671 | WALSWORTH PUBLISHING COMPANY | Pirinq | 4 | |
| 67 | AS46774 | MAYVILLE ENGINEERING COMPANY, INC. | Downstream | 4 | |
| 68 | AS46688 | Landscape Structures, Inc. | Downstream | 4 | |
| 69 | AS36199 | Cree Lighting a company of IDEAL INDUSTRIES, INC | Downstream | 4 | |
| 70 | AS32684 | Ariens Company | Downstream | 4 | |
| 71 | AS32384 | MILLER Electric Mfg. Co. | Downstream | 4 | |
| 72 | AS31804 | WEYCO GROUP, INC | Downstream | 4 | |
| 73 | AS27490 | Agrace Hospicecare Inc | Downstream | 4 | |
| 74 | AS27360 | Kwik Trip Inc. | Downstream | 4 | |
| 75 | AS26776 | Vortex Optics | Downstream | 4 | |
| 76 | AS26345 | AS26345 | Downstream | 4 | |
| 77 | AS26023 | Schwan's Shared Services, LLC. | Downstream | 4 | |
| 78 | AS23548 | Thedacare | Downstream | 4 | |
| 79 | AS23154 | SANMINA-SCI | Downstream | 4 | |
| 80 | AS21558 | S.C. Johnson & Son | Downstream | 4 | |
| 81 | AS21553 | Aspirus, Inc. | Downstream | 4 | |
| 82 | AS15300 | 4imprint | Downstream | 4 | |
| 83 | AS14305 | Accuray Incorporated | Downstream | 4 | |
| 84 | AS14262 | CALUMET COUNTY | Downstream | 4 | |
| 85 | AS11940 | Direct Supply, Inc. | Downstream | 4 | |
| 86 | AS11936 | Marathon Cheese Corporation | Downstream | 4 | |
| 87 | AS11769 | RJ Schinner Co | Downstream | 4 | |
| 88 | AS11438 | LeMans Corporation | Downstream | 4 | |
| 89 | AS10359 | Epic Systems Corporation | Downstream | 4 | |
| 90 | AS401635 | EAU CLAIRE - WALSWORTH PUBLISHING COMPANY | Downstream | 3 | |
| 91 | AS400038 | BEMIS MANUFACTURING COMPANY | Pirinq | 3 | |
| 92 | AS399919 | Alomere Health | Pirinq | 3 | |
| 93 | AS399299 | Stearns Financial Services, Inc | Downstream | 3 | |
| 94 | AS399071 | Bellin Memorial Hospital, Inc. | Pirinq | 3 | |
| 95 | AS398994 | KHS USA, Inc. | Pirinq | 3 | |
| 96 | AS398432 | WANRack, LLC | Downstream | 3 | |
| 97 | AS397926 | Crystal Computer Consulting, Inc. | Downstream | 3 | |
| 98 | AS396834 | Brady Worldwide, Inc | Pirinq | 3 | |
| 99 | AS396230 | Lasco | Downstream | 3 | |
| 100 | AS395810 | Hanson Communications, Inc. | Downstream | 3 | |
| 101 | AS395585 | Wausau Supply Co. | Downstream | 3 | |
| 102 | AS395286 | Beloit Health System, Inc. | Downstream | 3 | |
| 103 | AS395277 | Aspirus, Inc. | Downstream | 3 | |
| 104 | AS393702 | Wisconsin Vision Associates, Inc. | Downstream | 3 | |
| 105 | AS393377 | J. J. Keller & Associates, Inc. | Pirinq | 3 | |
| 106 | AS55279 | Jockey International, Inc. | Downstream | 3 | |
| 107 | AS54978 | ZYWAVE INC | Downstream | 3 | |
| 108 | AS54704 | Royal Credit Union | Pirinq | 3 | |
| 109 | AS53934 | SUB-ZERO GROUP, INC. | Downstream | 3 | |
| 110 | AS53738 | DATA DIMENSIONS CORP | Downstream | 3 | |
| 111 | AS53515 | AMTELCO | Downstream | 3 | |
| 112 | AS47039 | National Guardian Life Insurance Company | Downstream | 3 | |
| 113 | AS46828 | SILVER STAR BRANDS, INC. | Pirinq | 3 | |
| 114 | AS40530 | Greatland Corporation | Downstream | 3 | |
| 115 | AS40433 | AE Business Solutions | Downstream | 3 | |
| 116 | AS40055 | THE DOUGLAS STEWART COMPANY | Downstream | 3 | |
| 117 | AS36659 | J&B Wholesale Distributing, Inc. | Downstream | 3 | |
| 118 | AS36155 | Reedsburg Area Medical Center Inc. | Downstream | 3 | |
| 119 | AS32871 | Nature's Way | Downstream | 3 | |
| 120 | AS30426 | AS30426 | Downstream | 3 | |
| 121 | AS30382 | IPtelX | Downstream | 3 | |
| 122 | AS23493 | Acuity, A Mutual Insurance Company | Downstream | 3 | |
| 123 | AS21794 | Ameren Corp. | Downstream | 3 | |
| 124 | AS20239 | ALLETE, Inc. | Downstream | 3 | |
| 125 | AS19887 | KI | Downstream | 3 | |
| 126 | AS19336 | BLAIN SUPPLY, INC | Downstream | 3 | |
| 127 | AS14252 | School Specialty, Inc. | Pirinq | 3 | |
| 128 | AS14230 | Involta | Downstream | 3 | |
| 129 | AS7213 | Mason Companies, Inc. | Downstream | 3 | |
| 130 | AS397670 | Covantage Credit Union | Downstream | 1 | |
| 131 | AS26450 | CTDI | | 1 | |
| 132 | AS19620 | | Downstream | 1 | |
| 133 | AS18820 | Sargento Foods, Inc. | Downstream | 1 | |
| 134 | AS11500 | Milwaukee School of Engineering | Downstream | 1 | |