Data as of Nov 5, 2026

213.156.248.0/24

No anonymizer space · no proxy exits in 30 days

Microsoft Corporation · space held by Open Systems AG

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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
213.156.224.0/198,192CH-OPEN-20030130Open Systems AG (ORG-OSA1-RIPE) · CHALLOCATED PAJan 30, 2003support@open.ch
└ 213.156.248.0/24256NET-ENX-248Open Systems AG (ORG-OSA1-RIPE) · CHASSIGNED PAJul 9, 2015support@open.ch

Network & registry

Registry

Holder

Organization
Open Systems AG
Handle
ORG-OSA1-RIPE
Range
213.156.224.0/19
Registration type
ALLOCATED PA
Record created
Jan 30, 2003
Origin network

AS8075

US
Name
Microsoft Corporation
Type
Hosting
Registered
Mar 31, 1997
Domain
microsoft.com
Website
www.microsoft.com
Industry
Software Development
Spamhaus ASN-DROP
not listed