54.39.6.163📋 Copy

# IP Intelligence Briefing: 54.39.6.163/32

Classification: MODERATE RISK | Severity: LOW-MEDIUM | Generated: 2026-06-23

## Executive Summary

IP 54.39.6.163 belongs to OVH CloudCompute infrastructure in Quebec, Canada. The address is part of a high-abuse subnet (54.39.6.0/24) with 67.19% abuse density, though the specific endpoint shows a moderate risk score of 40. No active threat indicators were observed, but the subnet context warrants defensive monitoring.

## Key Findings

Ownership and Infrastructure

• ASN: 16276 (OVH)
• Organization: Dmytro, Ahrefs Pte Ltd
• CIDR Block: 54.39.6.0/24
• Location: Beauharnois, Quebec, Canada (CA)
• Infrastructure Type: Cloud Computing / Hosting Provider
• Network Role: Firewalled / No Services Detected

Risk Assessment

• Overall Risk Score: 40 (Moderate)
• Abuse Confidence Score: Not available
• DNSBL Listings: 1 of 8 total lists checked
• Tor Exit Node: No
• Known Attacker: No
• Spam Source: No

DNS and Network Activity

• PTR Hostname: proxy-ca001-san163.ahrefs.net
• Domain: ahrefs.net
• Open Ports: None detected
• TLS Certificate: Not available
• HTTP Title: Not available

Neighborhood Analysis

The /24 subnet (54.39.6.0/24) exhibits elevated abuse activity:

• Abuse Density: 0.6719 (High Abuse Classification)
• Total Subnet IPs: 256
• Active Siblings: 187
• Threat Siblings: 172
• Risk Distribution: 49 Medium Risk, 51 Low Risk, 0 High Risk
• Inherited Risk: 26

## Observation History

Analysis of 19 signal observations indicates:

• Recent Classification: Subnet marked as "high_abuse" with 0.6719 abuse density (observed 2026-06-20)
• Provider Identification: OVH (confirmed via multiple signals)
• Geographic Validation: Canada (CA) confirmed via Cymru country method
• Threat Persistence: 0 days; not persistently malicious
• Ownership Changes: 0 changes observed

## Threat Indicators

• Active Threat Feeds: None detected
• Known Campaigns: None
• Blacklist Count: 0
• Pulsedive Risk: Not available

## Recommended Actions

Based on the risk profile and subnet context:

1. Monitor Closely: Despite moderate individual risk, the high-abuse subnet context (67.19% abuse density) warrants enhanced monitoring.

2. Block if Required: If this IP is not a known legitimate business partner, consider blocking at the network perimeter.

3. Log All Activity: Monitor for any outbound connections or unusual traffic patterns from this IP.

4. Verify Legitimacy: Confirm if traffic originates from legitimate ahrefs.net infrastructure before allowing.

## SOC Notes

This endpoint is part of OVH hosting infrastructure that shares network context with 172 other flagged threat IPs in the same /24 subnet. While 54.39.6.163 shows no direct threat indicators, the subnet-level abuse density suggests potential for compromised co-located infrastructure. Apply defensive controls consistent with the subnet's overall risk profile.

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