University of Michigan
AS36375 is University of Michigan (umich.edu). It announces 826,496 IPv4 addresses in 20 prefixes, and 1 IPv6 prefixes.
United States· ARIN· allocated 2005-12-16· education
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- United States826,368 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- UMICH-AS-5
- name
- University of Michigan
- org
- UNIVER-118
- org name
- University of Michigan
- org address
- IT Communications Services, 4251 Plymouth Road, Suite 2-2200, Ann Arbor, MI, 48105-3640
- org city
- Ann Arbor
- org country
- US
- country
- US
- source
- arin
- created
- 2005-12-16
- updated
- 2012-03-02
- abuse name
- IT Abuse Investigation
- abuse email
- report-abuse@umich.edu
- abuse phone
- +1-734-764-4357
- abuse kind
- role
- abuse city
- Ann Arbor
- abuse country
- US
- admin name
- Internet Numbers Administration
- admin email
- internet-numbers@umich.edu
- admin phone
- +1-734-647-4200
- admin kind
- role
- admin city
- Ann Arbor
- admin country
- US
- tech name
- UMnet Administration
- tech email
- umnet-admin-team@umich.edu
- tech phone
- +1-734-647-4200
- tech kind
- role
- tech city
- Ann Arbor
- tech country
- US
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- VPN IP340.00%
- geonode, anyip, thordata0.02%
- None here
- None here
- 0.00%
- None here
- Hosting IP71,4248.64%
- None here
- None here
- None here
- SSH IP100.00%
- 0.00%
- DNS Resolver IP4,1680.50%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 35.0.0.0/16 | United States | valid | 19 | 2026-10-02 |
| 35.1.0.0/16 | United States | valid | 19 | 2026-10-02 |
| 35.2.0.0/16 | United States | valid | 19 | 2026-10-02 |
| 35.3.0.0/16 | United States | valid | 19 | 2026-10-02 |
| 35.4.0.0/16 | United States | valid | 19 | 2026-10-02 |
| 35.5.0.0/16 | United States | valid | 19 | 2026-10-02 |
| 35.6.0.0/16 | United States | valid | 19 | 2026-10-02 |
| 35.7.0.0/18 | United States | valid | 19 | 2026-10-02 |
| 35.7.128.0/18 | United States | valid | 19 | 2026-10-02 |
| 67.194.0.0/16 | United States | valid | 19 | 2026-10-02 |
| 141.211.0.0/16 | United States | valid | 19 | 2026-10-02 |
| 141.212.0.0/16 | United States | valid | 19 | 2026-10-02 |
| 141.213.0.0/16 | United States | valid | 19 | 2026-10-02 |
| 141.214.0.0/16 | United States | valid | 19 | 2026-10-02 |
| 192.12.80.0/24 | United States | valid | 19 | 2026-10-02 |
| 192.41.232.0/23 | United States | valid | 19 | 2026-10-02 |
| 192.231.253.0/24 | United States | valid | 19 | 2026-10-02 |
| 198.108.8.0/21 | United States | valid | 4 | 2026-10-02 |
| 198.111.181.0/25 | United States | valid | 2 | 2026-10-02 |
| 207.75.144.0/20 | United States | valid | 4 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2607:f018::/32 | United States | valid | 20 | 2026-10-02 |
Test the real build first.
An evaluation license puts a full current build in your hands — every row, every column, no sampling — so you can measure it against your own traffic before anyone talks about terms.