Data as of Nov 11, 2026
35.1.71.0/24
No anonymizer space · no proxy exits in 30 daysUniversity of Michigan · reallocated from Merit Network Inc.
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 |
|---|---|---|---|---|---|---|
| 35. | 1,114,112 | MICH-1 | Merit Network Inc. (MICH-Z) · US | Direct Allocation | Apr 1, 1994 | abuse@ |
| └ 35.1.0.0/16 | 65,536 | MICH-UM-20120807 | University of Michigan (UNIVER-118) · US | Reallocated | Aug 7, 2012 | report-abuse@ |
Network & registry
Announced by
Covering announcement 35.1.0.0/16
- Prefix
- 35.1.0.0/16
- Announced by
- AS36375 University of Michigan
- Type
- Business
- Proxy exits
- 108
- RPKI
- RPKI valid
- Netname
- MICH-UM-20120807
- Registrant
- University of Michigan
- RIR
- ARIN
IPv4 market
Holder
- Organization
- Merit Network Inc.
- Handle
- MICH-Z
- Range
- 35.
0. 0. 0 - 35. 16. 255. 255 - Registration type
- Direct Allocation
- Record created
- Apr 1, 1994
- Legacy
- yes
- Reallocated to
- University of Michigan (UNIVER-118)
- Reallocated range
- 35.
1. 0. 0/ 16 - Reallocated
- Aug 7, 2012
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
- Tor exits
- 1
Routing timeline
Who has announced 35.1.0.0/16
35.1.0.0/16
Routing history
- Pattern
- Stable
- First seen
- Apr 2022
- Current origin since
- Apr 2022 · 4.6 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 35.1.0.0/16 | AS36375 | /16 | ARIN | RPKI valid |
IRR
Route objects on 35.1.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS36375 | RADB | University of Michigan | MAINT-AS36375 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 35.
1. 0. 0/ 16 - Netname
- MICH-UM-20120807
- Registrant
- University of Michigan
- Organization
- University of Michigan (UNIVER-118)
- Org address
- IT Communications Services, Ann Arbor, MI, 48105-3640
- Org country
- US
- Type
- Reallocated
- Handle
- NET-35-1-0-0-1
- Parent
- NET-35-0-0-0-1
- Created
- Aug 7, 2012
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 1, 1994
- Status
- assigned
Report abuse
Abuse contact
- report-abuse@
umich. edu - Name
- IT Abuse Investigation
- Phone
- +1-734-764-4357
- Handle
- IAI8-ARIN