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Data as of Nov 4, 2026

131.174.228.0/22

No anonymizer space · no proxy exits in 30 days

Surf B.V. · space held by Radboud Universiteit Nijmegen

Announcement
131.174.0.0/16
RPKI valid
Announced by
AS1103
Type
Business
Risk
0 / 100 · Low

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
131.174.0.0/1665,536RU-NETRadboud Universiteit Nijmegen (ORG-RU11-RIPE) · NLLEGACY—cert@ru.nl
└ 131.174.228.0/221,024RadboudUMC-NETRadboud UMCLEGACYJun 14, 2018cert@radboudumc.nl

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
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