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Data as of Nov 9, 2026

74.234.0.0/15

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
74.234.0.0/15131,072MSFTMicrosoft Corporation (MSFT) · USDirect AllocationDec 11, 2019abuse@microsoft.com
└ 74.234.64.0/1816,384BLS-74-234-64-0-1003020948LFT ADSL Eeua (C02435358) · USReassignedMar 3, 2010abuse@microsoft.com
via MSFT
└ 74.234.128.0/198,192BLS-74-234-128-0-1003020948BGK ADSL Eeua (C02435359) · USReassignedMar 3, 2010abuse@microsoft.com
via MSFT
└ 74.234.160.0/198,192BLS-74-234-160-0-1003020948OWB ADSL Eeua (C02435520) · USReassignedMar 3, 2010abuse@microsoft.com
via MSFT
└ 74.234.192.0/1816,384BLS-74-234-192-0-1003020948CHA ADSL Eeua (C02435521) · USReassignedMar 3, 2010abuse@microsoft.com
via MSFT
└ 74.235.0.0/1732,768BLS-74-235-0-0-1003020949CLT ADSL CBB (C02435522) · USReassignedMar 3, 2010abuse@microsoft.com
via MSFT
└ 74.235.128.0/1816,384BLS-74-235-128-0-1003020949CLT ADSL CBB (C02435523) · USReassignedMar 3, 2010abuse@microsoft.com
via MSFT
└ 74.235.192.0/1816,384BLS-74-235-192-0-1003020949MCO ADSL CBB (C02435524) · 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