Autonomous system
AS5761 MICROSOFT-CORP-MSN-AS-SATURN
Unclassified ARIN
IPv4 addresses
256
1 prefixes
IPv6 prefixes
1
counted as prefixes, not addresses
Countries
1
mostly US
Flagged prefixes
0
none
Summary
Microsoft Corporation
enterprise legacy
MICROSOFT-CORP-MSN-AS-SATURN is one of Microsoft's smaller autonomous systems, registered to Microsoft Corporation in Redmond, Washington.
What it's used for
- A single announced IPv4
/24drawn from Microsoft's long-held corporate range, plus an IPv6/48. This is an edge or special-purpose AS, not the network that carries Azure or Microsoft's consumer services.
Notable
- Microsoft runs a family of ASNs rather than one. The bulk of its traffic rides its main global network, so a 256-address AS like this one is a corner of the estate rather than a representative sample of it.
- The prefix sits inside Microsoft's own registered corporate address space, so these addresses are company infrastructure rather than customer or tenant space.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS5761- Registry name
- MICROSOFT-CORP-MSN-AS-SATURN
- Registrant
- Microsoft Corporation
- Abuse contact
- abuse@microsoft.com
- Registered
- 1995-10-12
- Last changed
- 2013-08-21
- Status
- active
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
No IC3 indicators Nothing from the FBI IC3 feed.
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere