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Data as of Nov 5, 2026

145.102.132.0/22

No anonymizer space · no proxy exits in 30 days

Stichting Nederlandse Wetenschappelijk Onderzoek Instituten · space held by Surf B.V.

Announcement
this exact prefix
RPKI valid
Announced by
AS1104
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
145.102.0.0/16
since May 2013
AS1103Business64Surf B.V.

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
145.88.0.0 - 145.118.255.2552,031,616SURFNET-EARLY-REGISTRATIONSSurf B.V. (ORG-SB3-RIPE) · NLLEGACYNov 24, 2025cert@surfcert.nl
└ 145.102.132.0/221,024NIKHEF-NETNIKHEFLEGACYOct 16, 2012cert@surfcert.nl
via SURFNET-EARLY-REGISTRATIONS

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Surf B.V.
Handle
ORG-SB3-RIPE
Range
145.88.0.0 - 145.118.255.255
Registration type
LEGACY
Record created
Nov 24, 2025
Legacy
yes
Origin network

AS1104

NL
Name
Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
Type
Education
Registered
Sep 1, 1993
Domain
nikhef.nl
Website
www.nikhef.nl/
Industry
Research and Development Organizations
Spamhaus ASN-DROP
not listed