Data as of Nov 8, 2026

185.51.52.0/23

No anonymizer space · no proxy exits in 30 days

A2B IP B.V.

Announcement

this exact prefix

RPKI valid

Announced by

Type

Unknown

Risk

40 / 100 · Medium

Leased space

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.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
185.51.52.0/23	512	NL-A2BIP3-20140321	A2B IP B.V. (ORG-AIB25-RIPE) · NL	ALLOCATED PA	Aug 12, 2025	abuse@a2b-internet.com
└ 185.51.52.0/24	256	Access-Range	Access range	ASSIGNED PA	Aug 22, 2014	abuse@a2b-internet.com via NL-A2BIP3-20140321
└ 185.51.53.0/24	256	Access-Range	Access range	ASSIGNED PA	Aug 17, 2015	abuse@a2b-internet.com via NL-A2BIP3-20140321

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

Origin network

RPKI

ROA prefix	ASN	Max len	Anchor	Verdict
185.51.52.0/23	AS51088	/23	RIPE	RPKI valid

IRR

Origin	Registry	Description	Maintainer	Modified
AS51088	RIPE	A2B Internet	A2B-INTERNET-MNT	Aug 17, 2015

IRR inside

Prefix	Origin	Registry	Description	Maintainer	Modified
185.51.52.0/24	AS51088	RIPE	A2B Internet	A2B-INTERNET-MNT	May 27, 2015