52.139.38.158📋 Copy

# IP INTELLIGENCE BRIEFING

Target IP: 52.139.38.158/32

Report Date: 2026-06-14

Classification: Low Risk

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## EXECUTIVE SUMMARY

IP address 52.139.38.158 is a Microsoft Azure cloud infrastructure endpoint with a risk score of 25 (Low Risk). The IP exhibits no malicious threat indicators, maintains stable routing characteristics, and operates within legitimate cloud compute infrastructure. No blocking or filtering actions are recommended at this time.

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## OWNERSHIP AND INFRASTRUCTURE

• Organization: Microsoft Corporation
• ASN: 8075
• Network Provider: Microsoft Azure
• Infrastructure Type: Cloud Compute
• Location: Toronto, Ontario, Canada (43.65°N, 79.38°W)
• CIDR Block: 52.136.0.0/13 (origin)
• Route Stability: Stable (no changes in 30 days)

The IP is associated with Microsoft's cloud infrastructure backbone. Control plane analysis confirms DNSSEC validation and stable BGP routing through AS49788 and AS8075.

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## THREAT ASSESSMENT

• Overall Risk Score: 25 (Low Risk)
• Abuse Confidence Score: Not applicable (no abuse data)
• Blacklist Status: 0/8 threat feeds
• Tor Exit Node: No
• Known Attacker: No
• Spam Source: No

Threat Indicators: None detected

• No known campaigns correlated
• No WAF violations recorded
• No honeypot hits
• No enumeration strikes

Services: No open ports detected (firewalled/no services exposed)

DNS Reputation: No PTR records, no email authentication data

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## OBSERVATION HISTORY

Total Observations: 21 signals

Most Recent: 2026-06-14 22:16 UTC

Key Trends:

• Consistent classification as "mostly_clean" across observation period
• Subnet abuse density: 0.5 (moderate baseline for Azure infrastructure)
• Risk profile remains stable with no escalation
• 1 threat observation recorded (non-malicious classification)

The IP has demonstrated behavioral consistency with legitimate cloud infrastructure, showing no signs of becoming more or less risky over the observation period.

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## NETWORK RELATIONSHIPS

Total Relationships: 24

• Primary Association: Microsoft (MSFT) infrastructure
• All relationships indicate same-network ownership with Microsoft Corporation
• No external or third-party entity associations detected

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## SUBNET ANALYSIS (52.139.38.0/24)

• Abuse Density: 0.5 (moderate)
• Classification: mostly_clean
• Total Siblings: 2 IPs
• Active Siblings: 2 IPs
• Threat Siblings: 1 IP

Neighbor Risk Distribution:

• High Risk: 0
• Medium Risk: 0
• Low Risk: 1 (52.139.38.60, risk score: 25)

The /24 subnet maintains a clean security posture with minimal abuse activity. The single neighbor (52.139.38.60) shares the same low-risk profile.

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## SECURITY RECOMMENDATIONS

Status: No Action Required

Given the low-risk classification and Microsoft Azure infrastructure association:

• No firewall blocking recommended
• No WAF rules necessary
• No additional monitoring required beyond standard network traffic analysis

The IP should be treated as legitimate infrastructure. If unexpected traffic patterns are observed, investigate at the application layer rather than the network level.

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Analyst Notes: This IP represents standard Microsoft Azure cloud infrastructure. The risk score of 25 reflects typical baseline scoring for cloud compute endpoints. No defensive measures are warranted beyond standard network hygiene practices.

Data Sources: IPDebrief Intelligence Platform (2026-06-14)

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