54.39.136.33📋 Copy

# IP Intelligence Briefing: 54.39.136.33

Classification: MODERATE RISK

Date: 2026-06-28

Analyst: IPDebrief Intelligence Team

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## Executive Summary

IP address 54.39.136.33 is associated with OVH cloud infrastructure in Beauharnois, Quebec, Canada. The address resolves to ahrefs.net (proxy-ca002-san33.ahrefs.net) and presents a moderate risk score (40/100). No active threat indicators detected, but the subnet exhibits elevated abuse density (0.6992).

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## Infrastructure Profile

DNS Resolution: proxy-ca002-san33.ahrefs.net (ahrefs.net)

Service Status: Firewall-protected / No open services detected

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## Threat Assessment

Current Risk Indicators:

• No known attack campaigns correlated
• Zero blacklist entries in primary threat feeds
• Not identified as spam source, Tor exit node, or known attacker
• DNSBL listed on 1 of 8 major lists

Control Plane Observations:

• Route stable: No significant changes in last 30 days
• DNSSEC: Valid
• CAA records: Present
• Operator Score: 0.2174 (Minimal)

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## Subnet Neighborhood Analysis

Subnet: 54.39.136.0/24

Classification: High Abuse Density

Risk Distribution Among Siblings:

• High Risk: 0%
• Medium Risk: 44%
• Low Risk: 56%

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## Observation History

Total Signals: 21 observations

Recent signals indicate:

• DNS activity resolving to ahrefs.net (June 28, 2026)
• Geolocation confirmations for Canada (June 20, 2026)
• Consistent OVH hosting classification
• Minimal operator risk profile

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## Recommended Actions

Firewall/Security Recommendations:

• No immediate blocking required; IP not classified as actively malicious
• Monitor for changes in DNS resolution patterns
• Be aware of subnet-level abuse context (179/256 IPs flagged as threats)
• Implement rate limiting for outbound connections from this subnet if applicable

Investigation Priority: LOW-MEDIUM

The IP presents moderate risk primarily due to subnet abuse density rather than direct threat activity.

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Data Sources: IPDebrief Intelligence Platform

Report Generated: 2026-06-28

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