146.151.0.26
Education
Data retrieved at
Network
ASN
IP Range
Company
University of Wisconsin Madison
Network
UWMSN-NET-2
Using networksdb.io for network lookups.
Hostname
Not available.
Type
Education
Handle
NET-146-151-0-0-1
Registered
1991-02-14
Last Changed
2021-12-14
View raw RDAP
{
"arin_originas0_originautnums": [],
"cidr0_cidrs": [
{
"v4prefix": "146.151.0.0",
"length": 16
}
],
"endAddress": "146.151.255.255",
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-11-20T13:39:48-05:00"
},
{
"eventAction": "registration",
"eventDate": "1998-11-10T16:58:38-05:00"
}
],
"handle": "NO13-ORG-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NO13-ORG-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
},
{
"href": "https://whois.arin.net/rest/poc/NO13-ORG-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative"
],
"status": [
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],
"vcardArray": [
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[
[
"version",
{},
"text",
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],
[
"adr",
{
"label": "Division of Information Technology\n1210 West Dayton Street\nMadison\nWI\n53706\nUnited States"
},
"text",
[
"",
"",
"",
"",
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"",
""
]
],
[
"fn",
{},
"text",
"Network Operations"
],
[
"org",
{},
"text",
"University of Wisconsin - Madison"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
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"voice"
]
},
"text",
"+1-608-263-4188"
],
[
"tel",
{
"type": [
"work",
"fax"
]
},
"text",
"+1-608-262-9030"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-10-02T10:58:43-04:00"
},
{
"eventAction": "registration",
"eventDate": "2022-09-26T11:59:33-04:00"
}
],
"handle": "UWMAP-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UWMAP-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
},
{
"href": "https://whois.arin.net/rest/poc/UWMAP-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1210 W Dayton Street\nMadison\nWI\n53706\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"University of Wisconsin Madison Abuse POC"
],
[
"org",
{},
"text",
"University of Wisconsin Madison"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-608-264-4357"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-11-20T08:25:45-05:00"
},
{
"eventAction": "registration",
"eventDate": "2002-11-01T14:45:11-05:00"
}
],
"handle": "NOC212-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOC212-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
},
{
"href": "https://whois.arin.net/rest/poc/NOC212-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"noc",
"routing",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1210 West Dayton Street B332\nMadison\nWI\n53706\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"Network Operations Center"
],
[
"org",
{},
"text",
"University of Wisconsin Madison"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-608-263-4188"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-10-02T10:57:54-04:00"
},
{
"eventAction": "registration",
"eventDate": "2022-09-26T12:05:47-04:00"
}
],
"handle": "UWMHP-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UWMHP-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
},
{
"href": "https://whois.arin.net/rest/poc/UWMHP-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"dns"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"adr",
{
"label": "1210 W Dayton\nMadison\nWI\n53706\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
{},
"text",
"University of Wisconsin Madison Hostmaster POC"
],
[
"org",
{},
"text",
"University of Wisconsin Madison"
],
[
"kind",
{},
"text",
"group"
],
[
"email",
{},
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-608-263-4188"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2022-09-26T12:09:33-04:00"
},
{
"eventAction": "registration",
"eventDate": "2004-10-05T16:32:57-04:00"
}
],
"handle": "UWM-3",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/UWM-3",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
},
{
"href": "https://whois.arin.net/rest/org/UWM-3",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
{},
"text",
"4.0"
],
[
"fn",
{},
"text",
"University of Wisconsin Madison"
],
[
"adr",
{
"label": "1210 W Dayton\nB332\nMadison\nWI\n53706\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
{},
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2021-12-14T20:28:48-05:00"
},
{
"eventAction": "registration",
"eventDate": "1991-02-14T00:00:00-05:00"
}
],
"handle": "NET-146-151-0-0-1",
"ipVersion": "v4",
"links": [
{
"href": "https://rdap.arin.net/registry/ip/146.151.0.0",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
},
{
"href": "https://whois.arin.net/rest/net/NET-146-151-0-0-1",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
}
],
"name": "UWMSN-NET-2",
"notices": [
{
"description": [
"By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
}
],
"title": "Terms of Service"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/ip/146.151.0.26"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "ip network",
"parentHandle": "NET-146-0-0-0-0",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"cidr0",
"arin_originas0"
],
"startAddress": "146.151.0.0",
"status": [
"active"
],
"type": "DIRECT ALLOCATION"
}
Security
No security threats detected for this IP.
VPN
Proxy
Tor
Hosting
Residential Proxy
Bogon
Abuser
Crawler
RPKI
RPKI Origin Validation
RPKI verifies that an IP prefix is legitimately announced by the authorized Autonomous System (ASN) using Route Origin Authorizations (ROAs).
Valid.
This prefix is correctly authorized by a valid ROA.
VALID
Validated Prefix
146.151.0.0/16
Authorized ASN
AS3128, AS59
Abuse Contacts
IP Geolocation
Country
United States
Time Zone
America/Chicago
Coordinates
37.751, -97.822
Continent
North America
European Union
No.
Phone prefix
+1
Currency
US Dollar (USD $)