Data as of Nov 10, 2026
35.4.0.0/16
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 the announcement: those covering it, widest first, then every record inside it, 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@ |
| └ 35.4.0.0/16 | 65,536 | UMNET-4 | University of Michigan (UNIVER-118) · US | Reallocated | Jan 15, 2020 | — |
Network & registry
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.
4. 0. 0/ 16 - Reallocated
- Jan 15, 2020
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 this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2022
- Current origin since
- Apr 2022 · 4.6 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 35.
4. 0. 0/ 16 - Netname
- UMNET-4
- 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-35-4-0-0-1
- Parent
- NET-35-0-0-0-1
- Created
- Jan 15, 2020
- 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