Data as of Nov 11, 2026
131.174.196.0/22
No anonymizer space · no proxy exits in 30 daysSurf B.V. · space held by Radboud Universiteit Nijmegen
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 |
|---|---|---|---|---|---|---|
| 131.174.0.0/16 | 65,536 | RU-NET | Radboud Universiteit Nijmegen (ORG-RU11-RIPE) · NL | LEGACY | — | cert@ |
| └ 131.174.196.0/22 | 1,024 | RadboudUMC-NET | Radboud UMC | LEGACY | Jun 14, 2018 | cert@ |
Network & registry
Announced by
Covering announcement 131.174.0.0/16
- Prefix
- 131.174.0.0/16
- Announced by
- AS1103 Surf B.V.
- Type
- Business
- RPKI
- RPKI valid
- Netname
- RU-NET
- Registrant
- Radboud Universiteit Nijmegen
- RIR
- RIPE NCC
Origin network
AS1103
NL
- Name
- Surf B.V.
- Type
- Education
- Registered
- Sep 1, 1993
- Domain
- surf.nl
- Website
- www.surf.nl/en
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 131.174.0.0/16
131.174.0.0/16
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 |
|---|---|---|---|---|
| 131.174.0.0/16 | AS1103 | /24 | RIPE | RPKI valid |
IRR
Route objects on 131.174.0.0/16
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS1103 | RIPE | NUNET | AS1103-MNT | Sep 22, 2001 |
Whois
Registration for this announcement
- Range
- 131.
174. 0. 0/ 16 - Netname
- RU-NET
- Registrant
- Radboud Universiteit Nijmegen
- Registrant country
- NL
- Organization
- Radboud Universiteit Nijmegen (ORG-RU11-RIPE)
- Org country
- NL
- Type
- LEGACY
- Created
- Not stated by the registry
- Updated
- Jun 29, 2026
- Maintainer
- RIPE-NCC-LEGACY-MNT
- RIR
- RIPE NCC
- Country
- NL
- Delegated
- Dec 19, 1988
- Status
- assigned
Report abuse
Abuse contact
- cert@
ru. nl - Name
- ISC IT-services Radboud University
- Handle
- IIRU1-RIPE