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Data as of Nov 5, 2026

145.102.4.0/23

No anonymizer space · no proxy exits in 30 days

Surf B.V.

Announcement
this exact prefix
RPKI valid
Announced by
AS1101
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
└ 145.102.4.0/23512Orkaan-NETOnweer Service ProviderLEGACYAug 7, 2006cert@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

AS1101

NL
Name
Surf B.V.
Type
Education
Registered
Sep 1, 1993
Domain
as1101.net
Website
as1101.net/
Industry
Computer and Information Technology
Spamhaus ASN-DROP
not listed