Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS5761

Announcement observedARIN

MICROSOFT-CORP-MSN-AS-SATURN - Microsoft Corporation · MICROSOFT-CORP-MSN-AS-SATURN

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active9/29/2026, 13:56:16Snapshot expired

View network topology RDAP registration

ASN: AS5761
Registration country: United States
Name: MICROSOFT-CORP-MSN-AS-SATURN - Microsoft Corporation
Abbreviation: MICROSOFT-CORP-MSN-AS-SATURN
Registration date: 10/12/1995, 04:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
157.58.216.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/18/2026, 16:00:00	✓	×	Currently valid

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: MICROSOFT-CORP-MSN-AS-SATURN - Microsoft Corporation
RIR: ARIN
Registration country: United States
Registration date: 10/12/1995, 04:00:00
Abuse contact: abuse@microsoft.com

Snapshot trend

9/29/2026, 13:56:161 v41 v61 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · rir-rdap-asn · iana-rdap-asn-bootstrap