Data as of Nov 11, 2026
131.180.240.0/24
1 residential-proxy exit · 30 daysSurf B.V. · space held by Technische Universiteit Delft
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
1
selling exits here
Oct 12, 2026 – Nov 10, 2026
Exits seen per day
1 observation
Proxy providers listing exits
- LemonBright
Network & registry
Announced by
Covering announcement 131.180.0.0/16
- Prefix
- 131.180.0.0/16
- Announced by
- AS1128 Surf B.V.
- Type
- Business
- Proxy exits
- 2
- RPKI
- RPKI valid
- Netname
- DUNET
- Registrant
- Technische Universiteit Delft
- RIR
- RIPE NCC
Origin network
AS1128
NL
- Name
- Surf B.V.
- Type
- Education
- Registered
- Sep 1, 1993
- Domain
- surf.nl
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 131.180.0.0/16
131.180.0.0/16
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 131.180.0.0/16 | AS1128 | /24 | RIPE | RPKI valid |
IRR
Route objects on 131.180.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS1128 | RIPE | Delft University of Technology Network | AS1103-MNT | Jan 22, 2021 |
Whois
Registration for this announcement
- Range
- 131.
180. 0. 0/ 16 - Netname
- DUNET
- Registrant
- Technische Universiteit Delft
- Registrant country
- NL
- Organization
- Technische Universiteit Delft (ORG-DUOT4-RIPE)
- Org country
- NL
- Type
- LEGACY
- Created
- Jan 6, 2004
- Updated
- Feb 25, 2026
- Maintainer
- RIPE-NCC-LEGACY-MNT
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- Dec 22, 1988
- Status
- assigned
Report abuse
Abuse contact
- cert@
surfcert. nl - Name
- SURF Network Maintainer
- Handle
- SNS1-RIPE