20.57.198.166📋 Copy

## Intelligence Briefing: 20.57.198.166/32

Classification: Microsoft Azure Cloud Infrastructure | Risk Level: Low | Date: 2026-06-16

Executive Summary

The IP address 20.57.198.166 is identified as Microsoft Corporation (AS8075) cloud infrastructure located in San Francisco, CA. The address exhibits a low-risk profile with a risk score of 25/100 and demonstrates stable operational characteristics consistent with legitimate cloud computing services. No malicious indicators, blacklisting, or threat associations were detected during analysis.

Ownership and Network Classification

• Organization: Microsoft Corporation
• ASN: AS8075 (MSFT)
• Network Block: 20.33.0.0/16 (CIDR)
• Infrastructure Type: CloudCompute (Microsoft Azure)
• Geolocation: San Francisco, CA, US (37.78°N, -122.42°W)
• Registration: ARIN registry

The IP resides within Microsoft's Azure cloud network space and is classified as cloud hosting infrastructure with no residential or proxy characteristics detected.

Threat Assessment

Risk Score: 25 (Low Risk)

• Blacklist Status: Not listed (0 blacklists)
• Abuse Confidence: None
• Known Campaigns: None
• Tor/Proxy Indicators: Negative (not Tor exit, not proxy)
• Spam/Attacker Reputation: Negative

Threat feeds and known campaign databases returned no matches. The IP shows no evidence of malicious activity or association with threat actor infrastructure.

Service and Port Analysis

• Open Ports: None detected
• Services: No services exposed (firewalled)
• DNS Resolution: No reverse DNS records
• HTTP/HTTPS: No web services detected
• Email Authentication: N/A (no mail services)

The absence of open ports and services is consistent with Azure cloud infrastructure security posture, where backend services are typically inaccessible from the public internet.

Neighborhood Analysis (20.57.198.0/24)

• Abuse Density: 0.5 (low)
• Classification: Mostly clean
• Siblings: 2 total IPs in /24 block
• Neighbor IP: 20.57.198.165 (Risk Score: 25)
• Subnet Risk: Low

The /24 subnet demonstrates minimal abuse activity. The single identified neighbor (20.57.198.165) shares the same low-risk profile, supporting the classification of this network segment as legitimate cloud infrastructure.

Historical Observation Trends

Analysis of 17 signal observations indicates stable operational behavior with no escalation in risk indicators. Key historical observations:

• Ownership Stability: Zero ownership changes recorded
• Threat Persistence: No persistent malicious activity detected
• Geolocation Validation: Consistent San Francisco location reporting (ICMP blocked during validation)
• Network Classification: Maintained "cloud compute" classification throughout observation period

The IP has demonstrated consistent behavior consistent with Microsoft Azure infrastructure operations.

Control Plane and Routing

• Origin ASN: AS8075
• BGP Prefix: 20.48.0.0/12
• Route Stability: False (route changes noted in last 30 days)
• RPKI Validation: Data unavailable
• DNSSEC: Valid

Routing information indicates the IP originates from Microsoft's broader Azure address space.

Security Recommendations

Recommended Action: Monitor but allow traffic

• Firewall Rules: Not required (low-risk profile)
• Threat Detection: No blocking recommended
• Investigation Priority: Low

No immediate blocking or mitigation actions are warranted. The IP address represents legitimate Microsoft Azure infrastructure. Standard monitoring practices should apply, and traffic should be permitted unless other contextual intelligence indicates otherwise.

Intelligence Confidence

Confidence Level: High

The analysis leverages multiple signal sources including threat feeds, geolocation databases, and network intelligence. The low-risk classification is well-supported by the absence of malicious indicators and the confirmed Microsoft Azure ownership.

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*Intel prepared: 2026-06-16 | Sources: IPDebrief intelligence platform*

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