54.39.0.42📋 Copy

# IP INTELLIGENCE BRIEFING: 54.39.0.42/32

Classification: MODERATE RISK | Status: ACTIVE | Date: 2026-06-18

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## EXECUTIVE SUMMARY

IP 54.39.0.42 is a cloud infrastructure address hosted on OVH Canada's computing network. The IP exhibits moderate risk characteristics (Score: 40) with high-abuse classification at the /24 subnet level. Historical observations confirm persistent DNSBL listings and consistent high-abuse neighborhood density. No active threat campaigns or known attack indicators were identified.

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## NETWORK OWNERSHIP & GEOLOCATION

Ownership:

• ASN: 16276 (OVH)
• Organization: Dmytro, Ahrefs Pte Ltd
• Network Name: OVH-CUST-281059683
• CIDR Block: 54.39.0.0/24
• RIR: ARIN

Geolocation:

• Country: Canada (CA)
• Region: Quebec
• City: Beaucharnois
• Geographic Accuracy: 3000km (validation inconclusive)
• RTT Violation: 31.0ms observed vs 112.6ms minimum expected for 5629km distance

Infrastructure Type: Cloud Compute (OVH Hosting Provider)

Network Role: Firewall protected / No services exposed

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## THREAT INTELLIGENCE PROFILE

Risk Assessment:

• Overall Risk Score: 40 (Moderate)
• Provider Score: 0
• Authority Score: 0
• Stability Score: 0

Threat Indicators:

• Known Attacker: No
• Tor Exit Node: No
• Spam Source: No
• Campaign Associations: None identified
• Blacklist Count: 0 (database count)
• DNSBL Listed: 1 of 8 threat feeds

Control Plane:

• Operator Score: 0.2174 (Minimal)
• Route Stability: False
• DNSSEC Valid: Yes
• DNSBL Listed Count: 1

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## NEIGHBORHOOD ANALYSIS

Subnet: 54.39.0.0/24

• Abuse Density: 0.6992 (HIGH)
• Classification: High Abuse
• Total Sibling IPs: 256
• Active Sibling IPs: 220
• Threat Sibling IPs: 179 (81% threat ratio)
• Inherited Risk: 27

Risk Distribution in Subnet:

• High Risk: 0 IPs
• Medium Risk: 98 IPs
• Low Risk: 2 IPs

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## OBSERVATION HISTORY

Total Observations: 21 signals tracked

Recent Activity:

• 2026-06-18: High abuse classification confirmed (confidence: 0.75)
• 2026-06-18: Operator score 0.2174 (Minimal operator involvement)
• 2026-06-14: DNSBL listing observed on 1 of 8 lists (max severity: High)
• 2026-06-14: Geolocation data: Canada (CA)

Persistence Indicators:

• Threat Observation Count: 1
• Is Persistently Malicious: False
• Ownership Changes: 0

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## RESOLVABLE INDICATORS

DNS Resolution:

• PTR Hostnames: proxy-ca004-san42.ahrefs.net
• Forward Confirmed: No
• Hosted Domain: ahrefs.net
• Forward Hostnames: 1 record

Email Authentication:

• SPF Record: Not configured
• DMARC Record: Not configured
• TXT Record Count: 0

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## RECOMMENDED ACTIONS

Firewall/Blocking: No specific block rules recommended based on current threat profile.

Monitoring Priorities:

1. Monitor for emerging threat indicators in the 54.39.0.0/24 subnet (81% threat density)

2. Track DNSBL listing activity for this IP

3. Monitor for service exposure (currently no open ports)

4. Watch for geo-location anomalies

Contextual Notes:

• Subnet hosts ahrefs.net infrastructure
• High abuse density suggests shared hosting environment
• RTT validation inconclusive due to geographic distance

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INTELLIGENCE SOURCES: IPDebrief Profile, History, Relationships, Neighborhood Analysis

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