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Data as of Nov 7, 2026

74.248.0.0/15

No anonymizer space

Microsoft Corporation

Announcement
this exact prefix
RPKI valid
Announced by
AS8075
Type
Hosting

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
74.248.0.0/15131,072MSFTMicrosoft Corporation (MSFT) · USDirect AllocationDec 11, 2019abuse@microsoft.com
└ 74.248.32.0/198,192BLS-74-248-32-0-1003020949PFN ADSL CBB (C02435471) · USReassignedMar 3, 2010abuse@microsoft.com
via MSFT
└ 74.248.64.0/1816,384BLS-74-248-64-0-1003020949BTR ADSL CBB (C02435472) · USReassignedMar 3, 2010abuse@microsoft.com
via MSFT
└ 74.248.128.0/1816,384BLS-74-248-128-0-1003020949BHM ADSL CBB (C02435473) · USReassignedMar 3, 2010abuse@microsoft.com
via MSFT
└ 74.248.192.0/198,192BLS-74-248-192-0-1003020949TYS ADSL CBB (C02435474) · USReassignedMar 3, 2010abuse@microsoft.com
via MSFT
└ 74.248.224.0/198,192BLS-74-248-224-0-1003020949GSP ADSL CBB (C02435475) · USReassignedMar 3, 2010abuse@microsoft.com
via MSFT
└ 74.249.0.0/198,192BLS-74-249-0-0-1003020949CAE ADSL Eeua (C02435476) · USReassignedMar 3, 2010abuse@microsoft.com
via MSFT
└ 74.249.32.0/198,192BLS-74-249-32-0-1003020949GSP ADSL Eeua (C02437043) · USReassignedMar 5, 2010abuse@microsoft.com
via MSFT
└ 74.249.96.0/198,192BLS-74-249-96-0-1003020949MOB ADSL Eeua (C02435478) · USReassignedMar 3, 2010abuse@microsoft.com
via MSFT

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
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