University of California at Berkeley
AS25 is University of California at Berkeley (berkeley.edu). It announces 201,984 IPv4 addresses in 13 prefixes, and 2 IPv6 prefixes.
United States· ARIN· allocated 1984-08-03· 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 States201,984 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- UCB
- name
- University of California at Berkeley
- org
- UCAB-1-Z
- org name
- University of California at Berkeley
- org address
- IST - Telecommunications, ATTN Network Services and Operations, 2850 Telegraph Ave, NOTE See Comment for DMCA INFO, Berkeley, CA, 94705
- org city
- Berkeley
- org country
- US
- country
- US
- source
- arin
- created
- 1984-08-03
- updated
- 2023-12-14
- remarks
- DMCA Designated Agent is policy@berkeley.edu
- abuse name
- UCB-SECURIT-ARIN
- abuse email
- abuse@security.berkeley.edu
- abuse phone
- +1-510-664-9000
- abuse kind
- role
- abuse city
- Berkeley
- abuse country
- US
- admin name
- IST Communication and Network Services
- admin email
- noc@berkeley.edu
- admin phone
- +1-510-664-9000
- admin kind
- role
- admin city
- Berkeley
- admin country
- US
- tech
- UCB-NOC-ARIN
- tech name
- IST Communication and Network Services
- tech email
- noc@berkeley.edu
- tech phone
- +1-510-664-9000
- tech kind
- role
- tech city
- Berkeley
- 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 IP47vpngate0.02%
- geonode, anyip, floppydata0.13%
- None here
- None here
- 0.00%
- None here
- Hosting IP14,8487.35%
- None here
- None here
- None here
- SSH IP9400.47%
- SMTP IP160.01%
- 0.02%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 67.21.36.0/24 | United States | not found | 19 | 2026-10-02 |
| 128.32.0.0/16 | United States | not found | 19 | 2026-10-02 |
| 136.152.0.0/16 | United States | not found | 19 | 2026-10-02 |
| 169.229.0.0/16 | United States | not found | 19 | 2026-10-02 |
| 169.229.176.0/20 | United States | not found | 17 | 2026-10-02 |
| 169.236.240.0/21 | United States | not found | 19 | 2026-10-02 |
| 192.12.234.0/24 | United States | not found | 19 | 2026-10-02 |
| 192.35.209.0/24 | United States | not found | 19 | 2026-10-02 |
| 192.150.186.0/23 | United States | not found | 19 | 2026-10-02 |
| 192.154.4.0/23 | United States | not found | 19 | 2026-10-02 |
| 192.154.6.0/24 | United States | not found | 19 | 2026-10-02 |
| 208.68.240.0/22 | United States | not found | 19 | 2026-10-02 |
| 209.129.246.0/24 | United States | not found | 2 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2607:f140::/32 | United States | not found | 20 | 2026-10-02 |
| 2607:f140:e000::/48 | United States | not found | 20 | 2026-10-02 |
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