Data as of Nov 11, 2026

131.176.228.0/22

No anonymizer space · no proxy exits in 30 days

Microsoft Corporation · space held by European Space Agency (ESA)

Announcement

this exact prefix

RPKI valid

Announced by

Type

Hosting

Risk

50 / 100 · Medium

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
131.176.0.0/16	65,536	ESA	European Space Agency (ESA) (ORG-ESA1-RIPE) · DE	LEGACY	Oct 11, 2001	esanic@esa.int
└ 131.176.228.0/22	1,024	ESA-AZURE	European Space Research and Technology Centre	LEGACY	Dec 19, 2025	esanic@esa.int via ESA
└ 131.176.230.0/24	256	ESA-EAC-DMZ-NET3	European Space Research and Technology Centre	LEGACY	Apr 5, 2023	esanic@esa.int via ESA-AZURE

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

Routing timeline

Summary

RPKI

ROA prefix	ASN	Max len	Anchor	Verdict
131.176.228.0/22	AS8075	/24	RIPE	RPKI valid

IRR

Origin	Registry	Description	Maintainer	Modified
AS8075	RIPE	--------------------------------------------------------------------------------------------	ESANIC-MNT	Mar 26, 2026
AS8075	RADB	Microsoft ByoIp	MAINT-AS8075	Apr 30, 2026

IRR inside

Prefix	Origin	Registry	Description	Maintainer	Modified
131.176.230.0/24	AS288	RIPE	ESA EAC	ESANIC-MNT	Nov 10, 2015