Autonomous System details

AS2381

WiscNet · wiscnet.net

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AS2381 – WiscNet

Field	Value
Country	United States
Website	wiscnet.net
Hosted domains	461
IPv4 addresses	515,328
IPv6 addresses	79,537,647,524,085,683,070,000,000,000
ASN type	Education
Registry	arin
Allocated	33 years ago on Feb 03, 1993
Updated	2 years ago on Feb 28, 2024

Netblock	Company	Num of IPs
140.104.0.0/16	Carroll College	65,536
140.189.0.0/16	WiscNet	65,536
165.128.0.0/16	Western Technical College	65,536
170.125.0.0/16	Dane County	65,536
198.150.0.0/16	WiscNet	65,536
205.213.0.0/16	WiscNet	65,536
216.56.0.0/16	WiscNet	65,536
144.89.0.0/18	Board of Trustees of Beloit College	16,384
199.197.64.0/18	Madison Metropolitan School District	16,384
143.109.64.0/19	Ripon College	8,192
143.109.192.0/19	Ripon College	8,192
160.32.0.0/22	Chippewa Valley Technical College	1,024
208.85.28.0/22	City of La Crosse	1,024
170.125.238.0/23	Dane County	512
199.233.44.0/23	Rock County Information Technology Department	512
216.56.252.0/23	WiscNet	512
64.189.15.0/24	APOG-WISCONSINLUTHERAN	256
148.59.44.0/24	School District of Janesville	256
192.156.230.0/24	City of New Berlin	256
192.206.48.0/24	Milwaukee Public Museum	256
199.233.44.0/24	Rock County Information Technology Department	256
199.233.45.0/24	Rock County Information Technology Department	256
199.233.84.0/24	Milwaukee County Federated Library System	256
199.233.86.0/24	Milwaukee County Federated Library System	256
199.233.142.0/24	Milwaukee County Federated Library System	256
199.242.176.0/24	Winnefox Library System	256
199.248.186.0/24	City of Oshkosh	256
204.128.233.0/24	Milwaukee County Federated Library System	256
204.128.234.0/24	Milwaukee County Federated Library System	256
204.128.235.0/24	Milwaukee County Federated Library System	256
204.128.236.0/24	Milwaukee County Federated Library System	256
204.128.237.0/24	Milwaukee County Federated Library System	256
204.128.238.0/24	Milwaukee County Federated Library System	256
204.128.240.0/24	Milwaukee County Federated Library System	256
204.128.241.0/24	Milwaukee County Federated Library System	256
204.128.242.0/24	Milwaukee County Federated Library System	256
204.145.232.0/24	La Crosse Public Library	256

Netblock	Company
2001:4e0::/32	WiscNet
2620:11f:f000::/40	Northeast Wisconsin Technical College

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WHOIS Details

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                                                ASHandle:       AS2381
                                                OrgID:          AS2381
                                                ASName:         AS2381
                                                ASNumber:       AS2381
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 461 domain names hosted across 180 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
165.128.1.17	██████████	68
205.213.240.19	██████████	41
199.242.176.175	██████████	34
216.56.81.106	██████████	29
205.213.172.104	██████████	25
198.150.182.21	████████	16
199.248.186.42	██████████	14
198.150.176.49	██████████	8
198.150.176.42	██████████	8
140.104.2.8	██████████	6

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Hosted Domains API & Database

Peers

There are 222 peers for this ASN.

Peers	Name
AS10242	US Internet Corp
AS103	Northwestern University
AS10310	Yahoo Holdings Inc.
AS10423	STELLAR Broadband
AS11062	Metro Communications Company
AS11090	Matanuska Telecom Association, Incorporated
AS11114	Wintek Corporation
AS11164	Internet2
AS11232	Midcontinent Communications
AS11272	C Spire Fiber
AS11377	SendGrid, Inc.
AS11500	Milwaukee School of Engineering
AS11537	Internet2
AS11740	Progressive Casualty Insurance Company
AS11796	Airstream Communications, LLC
AS11979	Bluegrass Network LLC
AS12033	Adams TelSystems, Inc.
AS12067	ShawneeLink Corporation
AS12083	WideOpenWest Finance LLC
AS12129	123.Net, Inc.
AS12189	PhoenixNAP LLC
AS12200	Rackspace Hosting
AS12243	Waddell Solutions Group LLC
AS12265	Transaction Network Services, Inc.
AS1299	Arelion Sweden AB
AS13150	CATO NETWORKS LTD
AS13335	Cloudflare, Inc.
AS13414	Twitter Inc.
AS13428	Surf Air Wireless, LLC
AS13490	Buckeye Cablevision, Inc.
AS13631	CITADEL ENTERPRISE AMERICAS LLC
AS137409	GSL Networks Pty LTD
AS14016	Capcon Networks
AS14192	Carthage College
AS14340	Salesforce.com, Inc.
AS14363	MTC Communications, Inc.
AS14537	Continent 8 LLC
AS14593	Space Exploration Technologies Corporation
AS14609	Equinix, Inc.
AS14907	Wikimedia Foundation Inc.
AS14928	PenTeleData Inc.
AS15042	Urban Communications, Inc.
AS15169	Google LLC
AS1547	INTERDNESTRKOM, Sovmestnoe Zakrytoe Aktsionernoe Obshchestvo
AS15695	Expereo International BV
AS15830	Equinix (EMEA) Acquisition Enterprises B.V.
AS16276	OVH SAS
AS16509	Amazon.com, Inc.
AS16552	Tiggee LLC
AS16591	Google Fiber Inc.
AS17054	Expedient
AS17306	JAB Wireless, INC.
AS1736	Marquette University
AS17378	TierPoint, LLC
AS1828	Unitas Global
AS19016	Westman Communications Group
AS19108	Optimum
AS19151	BroadbandONE, LLC
AS19229	Ensono LP
AS19255	YOUR.ORG, INC.
AS19551	Incapsula Inc
AS19653	CTS Communications Corp
AS19679	Dropbox, Inc.
AS19754	The Fusion Network, LLC
AS19782	Indiana University
AS19783	APPRISS INC
AS19834	Conversant, LLC
AS199524	G-Core Labs S.A.
AS20021	Ntirety, Inc.
AS200478	Taboola.com ltd
AS20115	Charter Communications LLC
AS20278	Nexeon Technologies, Inc.
AS203724	Musarubra Germany GmbH
AS2041	St. Norbert College
AS20473	The Constant Company, LLC
AS208414	WEDOS Internet, a.s.
AS20940	Akamai International B.V.
AS215724	Edgevana, Inc.
AS21859	Zenlayer Inc
AS21949	Beanfield Technologies Inc.
AS22066	City of Eau Claire
AS22137	Blood Center of Wisconsin, Inc.
AS22335	Metropolitan Research and Education Network
AS22616	ZSCALER, INC.
AS22697	Roblox
AS22971	ST. VINCENT HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER OF ST. FRANCIS
AS22995	Xplore Inc.
AS23301	State of Wisconsin Investment Board
AS23344	Disney Worldwide Services, Inc.
AS23367	Adaptive Data Networks, LLC
AS23404	Ritter Communications
AS23473	PAVLOV MEDIA INC
AS24115	Equinix
AS24482	SG.GS
AS25697	UpCloud USA Inc
AS25979	CITY OF MADISON
AS26077	Nextlink Broadband
AS26223	Silver Star Communications
AS2635	Automattic, Inc
AS26415	VeriSign Global Registry Services

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ASN API & Database

Upstreams

There are 4 upstreams for this ASN.

upstreams	Name
AS11164	Internet2
AS1299	Arelion Sweden AB
AS3257	GTT Communications Inc.
AS6939	Hurricane Electric LLC

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ASN API & Database

Downstreams

There are 31 downstreams for this ASN.

Downstreams	Name
AS103	Northwestern University
AS11500	Milwaukee School of Engineering
AS14192	Carthage College
AS1736	Marquette University
AS19782	Indiana University
AS2041	St. Norbert College
AS22066	City of Eau Claire
AS22137	Blood Center of Wisconsin, Inc.
AS22971	ST. VINCENT HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER OF ST. FRANCIS
AS23301	State of Wisconsin Investment Board
AS25979	CITY OF MADISON
AS3128	University of Wisconsin System
AS3136	State of WI Dept. of Administration
AS33503	Medical College of Wisconsin
AS36723	Waukesha County
AS3676	University of Iowa
AS393257	Lawrence University
AS394316	Altra Federal Credit Union
AS394673	Milwaukee Area Technical College
AS395963	WCAN
AS396939	Fond du Lac Band of Lake Superior Chippewa
AS400632	KUSD
AS401492	Winding Rivers Library System
AS40347	Eau Claire County
AS46103	University of Wisconsin Whitewater
AS47015	Sacred Heart Hospital
AS53355	Concordia University Wisconsin
AS53599	Kenosha County
AS55133	St. Croix Central School District
AS57	University of Minnesota
AS64243	Moraine Park Technical College

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ASN API & Database

Pingable IPs

378 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
143.109.64.4	AS2381 WiscNet	`16.44ms` from Chicago, US
216.56.30.33	AS2381 WiscNet	`9.25ms` from Chicago, US
143.109.192.5	AS2381 WiscNet	`16.31ms` from Chicago, US
216.56.62.34	AS2381 WiscNet	`7.67ms` from Chicago, US
198.150.76.215	AS2381 WiscNet	`8.17ms` from Chicago, US
216.56.67.45	AS2381 WiscNet	`5.12ms` from Chicago, US
198.150.195.2	AS2381 WiscNet	`19.59ms` from Sioux Falls, US
165.128.152.62	AS2381 WiscNet	`17.18ms` from Winnipeg, CA
205.213.13.254	AS2381 WiscNet	`20.06ms` from Chicago, US
140.189.69.11	AS2381 WiscNet	`8.16ms` from Chicago, US
216.56.33.2	AS2381 WiscNet	`19.40ms` from Chicago, US
205.213.80.2	AS2381 WiscNet	`25.88ms` from Chicago, US
216.56.35.2	AS2381 WiscNet	`40.30ms` from Chicago, US
2001:4e0:8000:ffff::2	AS2381 WiscNet	`3.23ms` from Chicago, US
140.189.73.65	AS2381 WiscNet	`3.05ms` from Chicago, US
216.56.55.194	AS2381 WiscNet	`15.56ms` from Chicago, US
205.213.97.5	AS2381 WiscNet	`7.12ms` from Chicago, US
205.213.7.254	AS2381 WiscNet	`7.19ms` from Chicago, US
216.56.31.89	AS2381 WiscNet	`9.79ms` from Chicago, US
165.128.144.6	AS2381 WiscNet	`17.81ms` from Winnipeg, CA
216.56.74.18	AS2381 WiscNet	`2.79ms` from Chicago, US
216.56.242.146	AS2381 WiscNet	`5.24ms` from Chicago, US
140.104.9.62	AS2381 WiscNet	`7.94ms` from Chicago, US
170.125.251.20	AS2381 WiscNet	`5.93ms` from Chicago, US
205.213.55.100	AS2381 WiscNet	`19.21ms` from Chicago, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
103.35.99.29	AS134509 1-TO-ALL COMPANY LIMITED	`0.23ms` from Bangkok, TH
100.21.56.189	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
3.31.152.205	AS8987 Amazon Data Services Ireland Ltd	`0.35ms` from Boardman, US
74.138.212.157	AS10796 Charter Communications Inc	`12.45ms` from Columbus, US
218.5.84.109	AS4134 CHINANET-BACKBONE	`5.51ms` from Fuzhou, CN
209.141.209.157	AS46792 Paragould Municipal Utilities	`5.33ms` from Little Rock, US
92.18.229.237	AS13285 TalkTalk Communications Limited	`2.08ms` from Manchester, GB
2.116.217.221	AS3269 Telecom Italia S.p.A.	`12.22ms` from Milan, IT
102.36.222.221	AS37027 Simbanet (T) Limited	`8.51ms` from Nairobi, KE
122.227.99.13	AS4134 CHINANET-BACKBONE	`7.57ms` from Nanchang, CN
177.55.236.253	AS28656 BTT TELECOMUNICACOES S.A.	`7.42ms` from Osasco, BR
86.213.127.125	AS3215 Orange S.A.	`15.14ms` from Paris, FR
185.230.172.109	AS197412 Jiri Tlapak	`9.28ms` from Prague, CZ
88.40.62.61	AS3269 Telecom Italia S.p.A.	`4.49ms` from Rome, IT
20.35.212.29	AS8070 Microsoft Corporation	`1.54ms` from San Antonio, US
109.102.121.189	AS9050 Orange Romania S.A.	`0.71ms` from Timisoara, RO
109.60.53.109	AS31012 A1 Hrvatska d.o.o.	`1.00ms` from Zagreb, HR
193.247.48.13	AS206225 Union Postale Universelle	`2.58ms` from Zuerich, CH
80.69.51.61	AS34170 Aztelekom LLC	`1.34ms` from Baku, AZ
18.237.79.237	AS16509 Amazon.com, Inc.	`0.13ms` from Boardman, US
73.218.73.77	AS7922 Comcast Cable Communications, LLC	`7.50ms` from Boston, US
184.17.158.77	AS5650 Frontier Communications of America, Inc.	`4.39ms` from Chicago, US
88.193.191.29	AS1759 Telia Finland Oyj	`4.23ms` from Helsinki, FI
67.11.148.125	AS11427 Charter Communications Inc	`8.16ms` from Houston, US
31.7.38.205	AS7768 Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERI	`16.81ms` from Izmir, TR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

traceroute -a -n -q1 -f2 -m17 165.128.71.83

traceroute to 165.128.71.83 (165.128.71.83): 17 hops max, 52 byte packets

2 [AS10912] 64.74.160.1 0.187 ms

3 *

4 [AS7578] 206.148.25.30 0.551 ms

5 *

6 [AS7578] 206.148.25.27 37.015 ms

7 [AS7578] 206.148.25.133 27.593 ms

8 *

9 [AS2381] 140.189.8.129 39.831 ms

10 *

11 [AS2381] 140.189.8.94 51.884 ms

12 *

13 *

14 [AS2381] 140.189.84.102 47.963 ms

15 *

16 *

17 *

Measurement taken from

IPinfo ProbeNet in Atlanta, US

On March 21st 2026

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS2381 at robtex.

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