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Autonomous System

AS8070

Microsoft Corporation

Announced IPs
1,073,920
CIDR prefixes
28
ASN
AS8070

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

59/100
Caution
How this score is built
  • Baseline (neutral) 65
  • Hosting allocation −6
  • Trust score 59 / 100

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

About Microsoft

Microsoft Corporation is an American multinational technology company headquartered in Redmond, Washington. The company became influential in the rise of personal computers through software like Windows and has since expanded into areas such as Internet services, cloud computing, artificial intelligence, video gaming, and more.

Founded
1975
Headquarters
Redmond
Industry
technology industry
Employees
221,000

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
57.16.0.0/14 262.1K
0.0%
Microsoft Corporation GB
20.34.0.0/15 131.1K
0.0%
Microsoft Corporation US Virginia Boydton
20.140.0.0/15 131.1K
0.0%
Microsoft Corporation US Virginia Boydton
20.158.0.0/15 131.1K
0.0%
Microsoft Corporation US Virginia Boydton
51.54.0.0/15 131.1K
0.0%
Microsoft Corporation GB
52.126.0.0/15 131.1K
0.0%
Microsoft Corporation US Arizona Phoenix
62.10.0.0/15 131.1K
0.0%
Microsoft Corporation GB
195.134.224.0/19 8.2K
0.3%
Microsoft Corporation FI
131.253.80.0/20 4.1K
0.0%
Microsoft Corporation US Texas San Antonio
131.253.112.0/21 2.0K
0.2%
Microsoft Corporation US Iowa Des Moines
204.13.120.0/21 2.0K
1.4%
Microsoft Corporation US
131.253.72.0/22 1.0K
0.0%
Microsoft Corporation US Virginia Boydton
131.253.120.0/22 1.0K
1.1%
Microsoft Corporation US Virginia Boydton
165.159.132.0/22 1.0K
2.2%
Microsoft Corporation US Virginia Boydton
165.159.136.0/22 1.0K
2.3%
Microsoft Corporation US Arizona Phoenix
165.159.188.0/22 1.0K
0.0%
Microsoft Corporation US Texas San Antonio
152.228.48.0/23 512
0.0%
Microsoft Corporation US Virginia Boydton
199.15.136.0/23 512
3.3%
Microsoft Corporation US Virginia Boydton
208.68.130.0/23 512
0.0%
Microsoft Corporation US Virginia Boydton
64.40.141.0/24 256
0.0%
Microsoft Corporation US Virginia Boydton
97.107.239.0/24 256
0.0%
Microsoft Corporation US Virginia Boydton
137.70.156.0/24 256
0.0%
Microsoft Corporation US Virginia Boydton
137.70.158.0/24 256
0.0%
Microsoft Corporation US Arizona Phoenix
170.85.197.0/24 256
0.0%
Microsoft Corporation US California Garden Grove
170.85.198.0/24 256
0.0%
Microsoft Corporation US California Garden Grove
199.15.138.0/24 256
0.4%
Microsoft Corporation US Arizona Phoenix
199.34.97.0/24 256
0.0%
Microsoft Corporation US Virginia Boydton
206.41.48.0/24 256
0.0%
Microsoft Corporation US Virginia Boydton

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS8070 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
57.16.0.0/14 2,873 2026-07-20 17:37:15
206.41.48.0/24 2,778 2026-07-20 15:20:11
20.158.0.0/15 2,772 2026-07-20 17:37:15
51.54.0.0/15 2,764 2026-07-20 17:37:15
62.10.0.0/15 2,721 2026-07-20 17:37:15
64.40.141.0/24 2,700 2026-07-20 16:31:01
97.107.239.0/24 2,695 2026-07-20 15:20:11
20.140.0.0/15 2,695 2026-07-20 17:37:15
20.34.0.0/15 2,684 2026-07-20 17:37:15
52.126.0.0/15 2,667 2026-07-20 17:37:15
165.159.136.0/22 2,664 2026-07-20 15:20:11
131.253.120.0/22 2,662 2026-07-20 15:20:11
131.253.72.0/22 2,660 2026-07-20 15:20:11
165.159.188.0/22 2,655 2026-07-20 15:20:11
152.228.49.0/24 2,655 2026-07-20 15:20:11
165.159.132.0/22 2,655 2026-07-20 15:20:11
152.228.48.0/24 2,653 2026-07-20 15:20:11
170.85.197.0/24 2,652 2026-07-20 15:20:11
170.85.198.0/24 2,650 2026-07-20 15:20:11
137.70.158.0/24 2,639 2026-07-20 15:20:11
131.253.112.0/21 2,639 2026-07-20 15:20:11
131.253.80.0/20 2,632 2026-07-20 15:20:11
137.70.156.0/24 2,631 2026-07-20 15:20:11
208.68.131.0/24 2,631 2026-07-20 15:20:11
208.68.130.0/24 2,631 2026-07-20 15:20:11
199.34.97.0/24 2,625 2026-07-20 15:20:11
204.13.120.0/21 2,613 2026-07-20 15:20:11
199.15.136.0/23 2,599 2026-07-20 15:20:11
195.134.224.0/19 2,593 2026-07-20 15:20:11
199.15.138.0/24 2,581 2026-07-20 15:20:11

Frequently Asked Questions

What is AS8070?

AS8070 is an Autonomous System Number assigned to Microsoft Corporation. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS8070 announce?

AS8070 announces 1.07M IPv4 addresses distributed across 28 routed CIDR prefixes. The network is registered in United States.

Who operates AS8070?

AS8070 is operated by Microsoft Corporation. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS8070 registered in?

AS8070 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-20 18:40:31 UTC
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