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