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Data as of Nov 9, 2026

66.180.96.0/24

No anonymizer space · no proxy exits in 30 days

Microsoft Corporation · space held by Microsoft Limited

Announcement
66.180.96.0/19
RPKI valid
Announced by
AS8075
Type
Hosting
Risk
50 / 100 · Medium
Recent change
New origin May 2026
its first announcement on record

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
66.180.96.0/198,192UK-MICROSOFT-20011015Microsoft Limited (ORG-MA42-RIPE) · GBALLOCATED PANov 13, 2024abuse@microsoft.com
└ 66.180.96.0/24256cloudunknownASSIGNED PASep 5, 2025abuse@microsoft.com
via UK-MICROSOFT-20011015

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
Announced by

Covering announcement 66.180.96.0/19

Prefix
66.180.96.0/19
Announced by
AS8075 Microsoft Corporation
Type
Hosting
RPKI
RPKI valid
Netname
UK-MICROSOFT-20011015
Registrant
Microsoft Limited
RIR
RIPE NCC
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