Autonomous system
AS8068 MICROSOFT-CORP-MSN-AS-BLOCK
Hosting ARIN
Summary
Microsoft Corporation
cloud hosting compute
One of Microsoft's core Autonomous Systems (MICROSOFT-CORP-MSN-AS-BLOCK). Addresses here carry a broad mix of Microsoft services, including Azure cloud, Microsoft 365, and corporate infrastructure.
What it's used for
- Hosting Azure-hosted workloads plus Microsoft's own online services (Microsoft 365, Outlook, Bing, and more).
Notable
- An IP here identifies Microsoft as the host — it may be first-party Microsoft infrastructure or a third-party service running on Azure.
- Microsoft announces from many ASNs across this block; which one carries a given prefix varies by service and region.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS8075 | Microsoft Corporation | 3,491 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 27 prefixes · 9.98K addresses IPv6 21 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 48 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS8068- Registry name
- MICROSOFT-CORP-MSN-AS-BLOCK
- Registrant
- Microsoft Corporation
- Abuse contact
- abuse@microsoft.com
- Registered
- 1997-03-31
- Last changed
- 2013-09-04
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 70 valid, 0 with no ROA
- ROAs
- 146 authorising AS8068
- ASPA
- no ASPA record
- IRR
- 100% registered · 70 of 70 announcements
- Route objects
- 144 naming AS8068
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 442 networks and 1,772 prefixes, as published 2026-10-15. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere