157.55.39.11📋 Copy

IP Intelligence Briefing: 157.55.39.11

Date: 2026-06-13

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**1. Profile Summary**

• Risk Score: 25 (Low Risk)
• Ownership: Microsoft Corporation (ASN 8075, Netname: MSFT-GFS)
• Geolocation: Madison, WI, US (Inferred via multi-signal geolocation)
• Network Role: Cloud compute infrastructure (Bingbot service, Microsoft Hosting)
• Threat Indicators: No malicious activity detected (no abuse confidence, Tor, or spam flags).

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**2. Observation History**

• Recent Activity (Last 30 Days):

- 18 observations recorded, with no persistent malicious behavior.

- Geolocation data consistently points to Madison, WI, US.

- DNS records linked to `msn.com` (Bingbot crawler).

- BGP prefix `157.55.0.0/16` confirmed as Microsoft-owned.

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**3. Relationships**

• DNS Associations:

- `msnbot-157-55-39-11.search.msn.com` (Microsoft's search crawler).

• Network Peers:

- Shares the same network (`MSFT-GFS`) as other Microsoft infrastructure.

• No Known Malicious Links: No connections to threat feeds or malicious domains.

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**4. Neighborhood Analysis**

• Subnet: `157.55.39.0/24` (28 total IPs).
• Risk Distribution:

- 1 medium-risk IP (157.55.39.197).

- 27 low-risk IPs.

• Abuse Density: 0% (subnet is largely benign).

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**5. Recommendations**

• Monitoring: Track changes in the subnet’s risk profile, especially the medium-risk neighbor (157.55.39.197).
• Access Control: Ensure cloud infrastructure access policies are aligned with Microsoft’s security posture.
• DNS Security: Verify DNSSEC and CAA records for `msn.com` to prevent spoofing.

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Conclusion:

This IP is part of Microsoft’s legitimate cloud infrastructure, likely used for Bingbot search services. No signs of malicious activity. SOC teams should focus on monitoring subnet changes and validating DNS security configurations.

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.