AS4181 — TDS-AS

Network type: residential

AS4181 announces 141 IPv4 prefixes covering 1,806,592 addresses and 4 IPv6 prefixes.

About this network

TDS-AS is TDS Telecom, the wireline broadband and telephone arm of Telephone and Data Systems, Inc., headquartered in Madison, Wisconsin.

What it's used for

• Residential and small-business internet access across TDS's service territory, which spans rural and suburban communities in dozens of US states.
• TDS operates as an incumbent local exchange carrier in many of its markets and has been expanding fiber-to-the-home alongside its legacy copper and cable footprint.

Notable

• This is eyeball space. Addresses here overwhelmingly map to home broadband subscribers, so geolocation tends to resolve to small towns and suburbs rather than data centers.
• The allocation is large (over 1.7 million addresses), consistent with a multi-state consumer ISP that needs a public address per subscriber line.

Interesting

• TDS is one of the larger US broadband providers that most people outside its footprint have never heard of, because it grew by serving markets the big national carriers skipped.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 24.40.80.0/20
• 24.49.96.0/20
• 24.49.128.0/20
• 24.49.160.0/20
• 24.52.0.0/21
• 24.52.8.0/22
• 24.52.18.0/23
• 24.52.20.0/22
• 24.52.32.0/22
• 24.54.128.0/20
• 24.54.144.0/22
• 24.54.148.0/23
• 24.54.160.0/22
• 24.54.164.0/23
• 24.54.168.0/22
• 24.54.180.0/22
• 24.54.184.0/21
• 24.56.160.0/22
• 24.56.170.0/23
• 24.56.176.0/22
• 24.56.180.0/23
• 24.56.188.0/23
• 24.75.192.0/21
• 24.224.64.0/18
• 24.236.32.0/21
• 24.236.52.0/22
• 40.161.0.0/16
• 50.21.192.0/20
• 64.17.68.0/22
• 64.17.72.0/23
• 64.17.76.0/22
• 64.17.80.0/20
• 64.35.192.0/20
• 64.50.224.0/19
• 64.83.160.0/19
• 66.173.0.0/17
• 66.220.96.0/19
• 66.222.0.0/17
• 67.204.128.0/18
• 67.217.8.0/21
• 67.217.16.0/23
• 68.71.160.0/19
• 69.11.128.0/17
• 69.21.0.0/18
• 69.21.64.0/20
• 69.21.80.0/22
• 69.21.85.0/24
• 69.21.86.0/23
• 69.21.88.0/21
• 69.21.96.0/19
• 69.21.128.0/19
• 69.21.160.0/22
• 69.21.164.0/24
• 69.21.166.0/23
• 69.21.168.0/21
• 69.21.176.0/20
• 69.21.192.0/18
• 69.128.0.0/17
• 69.128.128.0/20
• 69.128.145.0/24
• 69.128.146.0/23
• 69.128.148.0/22
• 69.128.152.0/21
• 69.128.160.0/19
• 69.128.192.0/18
• 69.129.0.0/16
• 69.130.0.0/19
• 69.130.32.0/22
• 69.130.36.0/24
• 69.130.38.0/23
• 69.130.40.0/21
• 69.130.48.0/20
• 69.130.64.0/18
• 69.130.128.0/17
• 69.131.0.0/16
• 72.0.160.0/19
• 72.35.128.0/19
• 74.211.0.0/18
• 74.211.64.0/19
• 75.100.0.0/16
• 96.60.0.0/16
• 96.61.0.0/17
• 96.61.128.0/18
• 96.61.192.0/19
• 96.61.224.0/23
• 96.61.226.0/24
• 96.61.228.0/22
• 96.61.232.0/21
• 96.61.240.0/20
• 129.189.0.0/16
• 134.140.0.0/16
• 134.215.0.0/16
• 135.131.0.0/16
• 135.134.0.0/15
• 139.135.0.0/19
• 146.174.0.0/17
• 157.212.0.0/16
• 159.94.0.0/16
• 159.112.0.0/17
• 167.237.0.0/16

and 45 more.

Upstream networks

• AS1299 Arelion Sweden AB
• AS3257 GTT Communications Inc.
• AS6939 Hurricane Electric LLC
• AS64289 Macarne.com
• AS394256 Tech Futures Interactive Inc.
• AS24482 SG.GS
• AS852 TELUS Communications Inc.
• AS37721 Virtual Technologies & Solutions
• AS9002 RETN Limited
• AS7575 Australian Academic and Research Network (AARNet)
• AS17639 Converge ICT Solutions Inc.
• AS3303 Swisscom (Schweiz) AG
• AS2497 Internet Initiative Japan Inc.
• AS293 ESnet
• AS3130 RGnet OU
• AS11164 Internet2
• AS34927 iFog GmbH

Downstream networks

• AS54519 US Signal Company, L.L.C.
• AS395535 Weiss Internet
• AS396843 Dean Health Plan, Inc.
• AS396965 Wildcard Corp.
• AS10747 Epic Hosting, LLC
• AS21896 Alliant Energy
• AS23083 Ironcore, Inc.
• AS395086 SC Data Center, Inc.
• AS14847 Peck Servers, LLC
• AS396145 Exact Sciences Corporation
• AS10359 Epic Systems Corporation
• AS47039 National Guardian Life Insurance Company
• AS6547 DCT Technologies, Inc.
• AS13516 Cancer Treatment Centers of America, Inc.
• AS22582 Luminex Corporation
• AS46165 Resound Networks, LLC
• AS396491 Qualtim Inc.
• AS16568 PROMEGA CORPORATION
• AS53931 Talquin Electric Coop, Inc
• AS18668 Deschutes 911
• AS21561 Les Schwab Tire Centers
• AS31778 Cascade Medical Imaging
• AS40559 CROSSCOM NATIONAL, LLC
• AS18512 Yankee Book Peddler
• AS11964 Air Wisconsin Airlines Corporation

Adjacent networks

• AS1299 Arelion Sweden AB
• AS3257 GTT Communications Inc.
• AS6939 Hurricane Electric LLC
• AS54519 US Signal Company, L.L.C.
• AS64289 Macarne.com
• AS395535 Weiss Internet
• AS396843 Dean Health Plan, Inc.
• AS396965 Wildcard Corp.
• AS10747 Epic Hosting, LLC
• AS394256 Tech Futures Interactive Inc.
• AS3130 RGnet OU
• AS852 TELUS Communications Inc.
• AS7575 Australian Academic and Research Network (AARNet)
• AS293 ESnet
• AS3303 Swisscom (Schweiz) AG
• AS2497 Internet Initiative Japan Inc.
• AS11164 Internet2
• AS17639 Converge ICT Solutions Inc.
• AS24482 SG.GS
• AS21896 Alliant Energy
• AS9002 RETN Limited
• AS34927 iFog GmbH
• AS23083 Ironcore, Inc.
• AS395086 SC Data Center, Inc.
• AS14847 Peck Servers, LLC

Internet exchanges

• Equinix Internet Exchange Ashburn — Ashburn, United States
• Seattle Internet Exchange — Seattle, United States
• Coresite - Any2 West — Los Angeles, United States
• Any2 California — Los Angeles, United States
• Equinix Internet Exchange Chicago — Chicago, United States
• New York International Internet Exchange — New York, United States
• Digital Realty Atlanta Internet Exchange — Atlanta, United States
• Midwest Internet Cooperative Exchange — Minneapolis, United States
• Interconnection eXchange Denver — Denver, United States
• Southern Utah Peering Regional Network — St. George, United States