AS8068 — MICROSOFT-CORP-MSN-AS-BLOCK

Network type: hosting

AS8068 announces 27 IPv4 prefixes covering 9,984 addresses and 20 IPv6 prefixes.

About this network

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.

Announced prefixes

• 13.107.3.0/24
• 13.107.4.0/22
• 13.107.9.0/24
• 13.107.12.0/23
• 13.107.15.0/24
• 13.107.16.0/24
• 13.107.18.0/23
• 13.107.21.0/24
• 13.107.22.0/24
• 13.107.39.0/24
• 13.107.40.0/24
• 13.107.42.0/23
• 13.107.48.0/22
• 13.107.52.0/24
• 13.107.54.0/24
• 13.107.56.0/24
• 13.107.128.0/23
• 13.107.140.0/24
• 13.107.254.0/24
• 52.113.194.0/23
• 52.113.196.0/23
• 131.253.3.0/24
• 131.253.21.0/24
• 131.253.33.0/24
• 150.171.32.0/24
• 150.171.44.0/24
• 204.79.197.0/24
• 2620:1ec:4::/46
• 2620:1ec:a::/47
• 2620:1ec:c::/47
• 2620:1ec:12::/47
• 2620:1ec:1d::/48
• 2620:1ec:21::/48
• 2620:1ec:22::/47
• 2620:1ec:24::/48
• 2620:1ec:28::/48
• 2620:1ec:34::/48
• 2620:1ec:42::/47
• 2620:1ec:44::/47
• 2620:1ec:8f0::/48
• 2620:1ec:8fc::/48
• 2620:1ec:900::/48
• 2620:1ec:90c::/48
• 2620:1ec:a92::/48
• 2620:1ec:c11::/48
• 2a01:111:2003::/48
• 2a01:111:202c::/46

Upstream networks

• AS8075 Microsoft Corporation

Adjacent networks

• AS8075 Microsoft Corporation

Routing security

• RPKI: 70 valid, 0 invalid and 0 not-found announcements; 146 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 144 route objects.
• Listed in as-sets: AS-10099, AS-31576-PEERS, AS-BSVE:AS-LINX-PEERS-1, AS-BSVE:AS-LINX-PEERS-2, AS-EMIX, AS-GBLXEU, AS-LEARN-8075, AS-LIECOMTEL-PEERS, AS-MFNX, AS-MICROSOFT, AS-MICROSOFT, AS-MICROSOFTEU, AS-PACNET-DOWNSTREAM-HK, AS-PACNET-DOWNSTREAM-PH, AS-PEERS, AS-PLUSNETUK:AS-LINX-PEERS-PRI, AS-PLUSNETUK:AS-LINX-PEERS-SEC, AS-SEABONECUSTEU, AS-SWCM-MARTIANS-ACCEPT, AS-TELSTRA-INTL-CUSTOMERS-4637, AS-TH-IX-AS45458, AS-THIX, AS-TMNET-PEERS, AS-UUNETUK, AS-ZAINGP.