Autonomous system profile

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

AS8070

Announcement observedARIN

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

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

Last active9/29/2026, 21:00:19Snapshot expired

View network topology RDAP registration

ASN: AS8070
Registration country: United States
Name: Microsoft Corporation
Abbreviation: MICROSOFT-CORP-MSN-AS-BLOCK
Registration date: 3/31/1997, 05:00:00
Status: Announcement observed
RIR: ARIN

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
131.253.112.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
131.253.120.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
131.253.72.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
131.253.80.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
137.70.156.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
137.70.158.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
152.228.48.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
152.228.49.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
165.159.132.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
165.159.136.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
165.159.188.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
170.85.197.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
170.85.198.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
195.134.224.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
199.15.136.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
199.15.138.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
199.34.97.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
20.140.0.0/15BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
20.158.0.0/15BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
20.34.0.0/15BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
204.13.120.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
206.41.48.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
208.68.130.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
208.68.131.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
51.54.0.0/15BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
52.126.0.0/15BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
57.16.0.0/14BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
62.10.0.0/15BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
64.40.141.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid
97.107.239.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 16:00:00	10/23/2026, 08:00:00	✓	×	Currently valid

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

Registration and sources

Organization: Microsoft Corporation
RIR: ARIN
Registration country: United States
Registration date: 3/31/1997, 05:00:00
Abuse contact: abuse@microsoft.com

Snapshot trend

9/29/2026, 21:00:1930 v414 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 · iana-rdap-asn-bootstrap · rir-rdap-asn