Data as of Nov 4, 2026
141.211.23.208/28
No anonymizer space · no proxy exits in 30 daysUniversity of Michigan
Network & registry
Announced by
Covering announcement 141.211.0.0/16
- Prefix
- 141.211.0.0/16
- Announced by
- AS36375 University of Michigan
- Type
- Business
- Proxy exits
- 1
- RPKI
- RPKI valid
- Netname
- UMICH-1
- Registrant
- University of Michigan
- RIR
- ARIN
Origin network
AS36375
US
- Name
- University of Michigan
- Type
- Education
- Registered
- Dec 16, 2005
- Domain
- umich.edu
- Industry
- Education Software
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 141.211.0.0/16
141.211.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Nov 2006 · 20 yr
- Origin networks
- 2
- Last change of origin
- Nov 2006
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 141.211.0.0/16 | AS36375 | /16 | ARIN | RPKI valid |
IRR
Route objects on 141.211.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS36375 | RADB | University of Michigan | MAINT-AS36375 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 141.
211. 0. 0/ 16 - Netname
- UMICH-1
- Registrant
- University of Michigan
- Organization
- University of Michigan (UNIVER-118-Z)
- Org address
- IT Communications Services, Ann Arbor, MI, 48105-3640
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-141-211-0-0-1
- Parent
- NET-141-0-0-0-0
- Created
- Aug 2, 1990
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 2, 1990
- Status
- assigned
Report abuse
Abuse contact
- report-abuse@
umich. edu - Name
- IT Abuse Investigation
- Phone
- +1-734-764-4357
- Handle
- IAI8-ARIN