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AS231
MISU-231 - Michigan State University Announcing routesAS nameMISU-231
OrganisationMichigan State University
Registry (RIR)ARIN
HandleAS231
RangeAS231
Registered28 Jun 2021
Last changed28 Jun 2021
Abuse contact[email protected]
7IPv4 prefixes
2IPv6 prefixes
3Upstreams
1Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS237 | MERIT-AS-14 - Merit Network Inc. | 642 |
| AS11164 | INTERNET2-I2PX - Internet2 | 103 |
| AS11537 | INTERNET2-RESEARCH-EDU - Internet2 | 10 |
Downstreams
| AS | Network name | Visibility |
|---|---|---|
| AS229 | MERIT-AS-6 - Merit Network Inc. | 260 |
IPv4 prefixes (7)
IPv6 prefixes (2)
RPKI-validate all prefixes of AS231
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | Michigan State University | MISU | IT Services, 450 Auditorium Rd., Suite 400, East Lansing, MI, 48824, United States | |
| abuse | Abuse Technical Support | ATS14-ARIN | [email protected], +1-517-432-6200 | MSU Information Technology , Computer Center , 450 Auditorium Road, Room 400, East Lansing, MI, 48824-1042, United States |
| administrative | DNS Administrative Support | DAS32-ARIN | [email protected], +1-517-432-6200 | MSU Information Technology , Computer Center , 450 Auditorium Road, Room 400, East Lansing, MI, 48824-1042, United States |
| technical | DNS Technical Support | DTS21-ARIN | [email protected], +1-517-432-6200 | Information Technology Services , Computer Center , 450 Auditorium Road, Room 400, East Lansing, MI, 48824-1042, United States |
Raw registry response
{
"endAutnum": 231,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-03-11T11:36:37-04:00"
},
{
"eventAction": "registration",
"eventDate": "2004-01-14T10:17:30-05:00"
}
],
"handle": "ATS14-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/ATS14-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/231"
},
{
"href": "https://whois.arin.net/rest/poc/ATS14-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/231"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"remarks": [
{
"description": [
"Report abuse to [email protected], or contact http://abuse.msu.edu/"
],
"title": "Registration Comments"
},
{
"description": [
"ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2026-03-11"
],
"title": "Unvalidated POC"
}
],
"roles": [
"abuse"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "MSU Information Technology\r\nComputer Center\r\n450 Auditorium Road, Room 400\nEast Lansing\nMI\n48824-1042\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Abuse Technical Support"
],
[
"org",
[],
"text",
"Michigan State University"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-517-432-6200"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-10-30T16:01:31-04:00"
},
{
"eventAction": "registration",
"eventDate": "2011-03-16T14:47:51-04:00"
}
],
"handle": "DAS32-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/DAS32-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/231"
},
{
"href": "https://whois.arin.net/rest/poc/DAS32-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/231"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "MSU Information Technology\r\nComputer Center\r\n450 Auditorium Road, Room 400\nEast Lansing\nMI\n48824-1042\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"DNS Administrative Support"
],
[
"org",
[],
"text",
"Michigan State University"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-517-432-6200"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2025-12-04T15:29:29-05:00"
},
{
"eventAction": "registration",
"eventDate": "2004-01-14T10:17:39-05:00"
}
],
"handle": "DTS21-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/DTS21-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/231"
},
{
"href": "https://whois.arin.net/rest/poc/DTS21-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/231"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "Information Technology Services\r\nComputer Center\r\n450 Auditorium Road, Room 400\nEast Lansing\nMI\n48824-1042\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"DNS Technical Support"
],
[
"org",
[],
"text",
"Michigan State University"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-517-432-6200"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2023-10-31T17:01:12-04:00"
},
{
"eventAction": "registration",
"eventDate": "1991-07-24T00:00:00-04:00"
}
],
"handle": "MISU",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/MISU",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/231"
},
{
"href": "https://whois.arin.net/rest/org/MISU",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/231"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Michigan State University"
],
[
"adr",
{
"label": "IT Services\n450 Auditorium Rd., Suite 400\nEast Lansing\nMI\n48824\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2021-06-28T10:56:16-04:00"
},
{
"eventAction": "registration",
"eventDate": "2021-06-28T10:56:13-04:00"
}
],
"handle": "AS231",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/231",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/231"
},
{
"href": "https://whois.arin.net/rest/asn/AS231",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/231"
}
],
"name": "MISU-231",
"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/autnum/231"
}
],
"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/autnum/231"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"nro_rdap_profile_asn_flat_0"
],
"startAutnum": 231,
"status": [
"active"
]
}Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.