146.151.3.0/24

AS3128 · University of Wisconsin System

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Summary

Country	United States
Domain	wisc.edu
ASN	AS3128
Parent Range	146.151.0.0/16
Registry	ARIN
ID	UWMSN-NET-2

WHOIS Details

NetHandle:      NET-146-151-0-0-1
OrgID:          UWM-3
Parent:         NET-146-0-0-0-0
NetName:        UWMSN-NET-2
NetRange:       146.151.0.0 - 146.151.255.255
NetType:        allocation
RegDate:        1991-02-14
Updated:        2021-12-14
Source:         ARIN


OrgID:          UWM-3
OrgName:        University of Wisconsin Madison
CanAllocate:    
Street:         1210 W Dayton
Street:         B332
City:           Madison
State/Prov:     WI
Country:        US
PostalCode:     53706
RegDate:        2004-10-05
Updated:        2022-09-26
OrgAdminHandle: NO13-ORG-ARIN
OrgTechHandle:  NOC212-ARIN
OrgAbuseHandle: UWMAP-ARIN
OrgNOCHandle:   NOC212-ARIN
OrgRoutingHandle:   NOC212-ARIN
OrgDNSHandle:   UWMHP-ARIN
Source:         ARIN


POCHandle:      NO13-ORG-ARIN
IsRole:         Y
LastName:       Network Operations
FirstName:      
Street:         Division of Information Technology
Street:         1210 West Dayton Street
City:           Madison
State/Prov:     WI
Country:        US
PostalCode:     53706
RegDate:        1998-11-10
Updated:        2025-11-20
OfficePhone:    +1-608-263-4188
FaxPhone:       +1-608-262-9030
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      UWMAP-ARIN
IsRole:         Y
LastName:       University of Wisconsin Madison Abuse POC
FirstName:      
Street:         1210 W Dayton Street
City:           Madison
State/Prov:     WI
Country:        US
PostalCode:     53706
RegDate:        2022-09-26
Updated:        2025-10-01
OfficePhone:    +1-608-264-4357
Mailbox:        [email protected]
Source:         ARIN


POCHandle:      NOC212-ARIN
IsRole:         Y
LastName:       Network Operations Center
FirstName:      
Street:         1210 West Dayton Street B332
City:           Madison
State/Prov:     WI
Country:        US
PostalCode:     53706
RegDate:        2002-11-01
Updated:        2025-11-20
OfficePhone:    +1-608-263-4188
Mailbox:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that contain 146.151.3.0/24

Range	ASN	Company	Num of IPs
146.151.0.0/16	AS3128	University of Wisconsin Madison	65,536
146.151.0.0/16	AS59	University of Wisconsin Madison	65,536

Nearby Ranges

BGP prefixes that overlap with 146.151.0.0/16

Range	ASN	Company	Num of IPs
146.151.0.0/16	AS3128	University of Wisconsin Madison	65,536
146.151.0.0/16	AS59	University of Wisconsin Madison	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
109.237.201.232	AS50670 VTEL HOLDINGS LIMITED/JORDAN CO.	`6.72ms` from Amman, JO
139.208.139.168	AS4837 CHINA UNICOM China169 Backbone	`9.01ms` from Changchun, CN
117.172.132.8	AS9808 China Mobile Communications Group Co., Ltd.	`7.69ms` from Chengdu, CN
18.201.68.232	AS16509 Amazon.com, Inc.	`0.59ms` from Dublin, IE
63.179.174.168	AS16509 Amazon.com, Inc.	`0.19ms` from Frankfurt am Main, DE
193.166.150.200	AS1741 CSC - Tieteen tietotekniikan keskus Oy	`4.45ms` from Helsinki, FI
72.57.98.72	AS36352 HostPapa	`0.30ms` from Los Angeles, US
201.142.131.200	AS8151 UNINET	`4.00ms` from Los Angeles, US
81.86.154.248	AS13285 TalkTalk Communications Limited	`2.63ms` from Manchester, GB
23.44.159.8	AS9299 Philippine Long Distance Telephone Company	`0.09ms` from Manila, PH
93.66.53.232	AS30722 Vodafone Italia S.p.A.	`11.52ms` from Milan, IT
95.236.149.104	AS3269 Telecom Italia S.p.A.	`1.76ms` from Milan, IT
99.86.194.120	AS16509 Amazon.com, Inc.	`0.17ms` from Tokyo, JP
49.113.4.88	AS4134 CHINANET-BACKBONE	`1.69ms` from UEruemqi, CN
92.55.7.120	AS3226 OOO NI	`7.61ms` from Yekaterinburg, RU
72.95.253.24	AS701 Verizon Business	`7.75ms` from Ashburn, US
198.101.9.56	AS13886 Cloud South	`1.18ms` from Boca Raton, US
173.28.222.56	AS30036 Mediacom Communications Corp	`13.87ms` from Chicago, US
188.237.45.104	AS8926 Moldtelecom SA	`3.12ms` from Chisinau, MD
64.58.224.8	AS13649 Flexential Colorado Corp.	`1.14ms` from Draper, US
51.140.145.88	AS8075 Microsoft Corporation	`0.65ms` from London, GB
173.196.222.8	AS20001 Charter Communications Inc	`6.07ms` from Los Angeles, US
31.36.145.152	AS5410 Bouygues Telecom SA	`8.15ms` from Marseille, FR
92.154.93.40	AS3215 Orange S.A.	`1.56ms` from Paris, FR
39.83.75.152	AS4837 CHINA UNICOM China169 Backbone	`6.48ms` from Qingdao, CN

Traceroute

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

traceroute -a -n -q1 -f4 -m15 146.151.3.123

traceroute to 146.151.3.123 (146.151.3.123): 15 hops max, 52 byte packets

4 [] 15.230.139.226 6.398 ms

5 *

6 *

7 *

8 *

9 [] 206.108.255.111 67.306 ms

10 [] 206.108.255.66 66.894 ms

11 [AS3128] 143.235.33.42 68.819 ms

12 [AS3128] 143.235.33.197 67.223 ms

13 *

14 *

15 *

Measurement taken from

IPinfo ProbeNet in Santiago de Queretaro, MX

On January 19th 2026

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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