Data as of Nov 7, 2026
141.216.170.0/24
1 residential-proxy exit · 30 daysUniversity of Michigan - Flint · space held by University of Michigan
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
2
selling exits here
Oct 8, 2026 – Nov 6, 2026
Exits seen per day
32 observations
Proxy providers listing exits
- ColaProxy
- Thordata
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 141.216.0.0/16 | 65,536 | UMICH-6 | University of Michigan (UNIVER-118-Z) · US | Direct Allocation | Aug 2, 1990 | report-abuse@ |
| └ 141.216.128.0/17 | 32,768 | UMICH-13 | unknown | — | — | — |
Network & registry
Announced by
Covering announcement 141.216.0.0/16
- Prefix
- 141.216.0.0/16
- Announced by
- AS394769 University of Michigan - Flint
- Type
- Business
- Proxy exits
- 6
- Always-on exits
- 1
- RPKI
- RPKI valid
- Netname
- UMICH-6
- Registrant
- University of Michigan
- RIR
- ARIN
Origin network
AS394769
US
- Name
- University of Michigan - Flint
- Type
- Education
- Registered
- Dec 23, 2015
- Domain
- umflint.edu
- Industry
- Education Software
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 141.216.0.0/16
141.216.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Jan 2016 · 11 yr
- Origin networks
- 2
- Last change of origin
- Jan 2016
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 141.216.0.0/16 | AS394769 | /16 | ARIN | RPKI valid |
IRR
Route objects on 141.216.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS394769 | RADB | University of Michigan - Flint | MAINT-AS237 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 141.
216. 0. 0/ 16 - Netname
- UMICH-6
- 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-141-216-0-0-1
- 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