54.39.210.127📋 Copy

# IP INTELLIGENCE BRIEFING: 54.39.210.127

Classification: Moderate Risk (Score: 40/100)

Report Date: Current

Classification Level: Cloud Infrastructure / High-Abuse Subnet

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## EXECUTIVE SUMMARY

IP 54.39.210.127 is a cloud-hosted infrastructure address operating within the OVH-CUST-281059686 network block. The IP is associated with Ahrefs Pte Ltd infrastructure but exhibits significant geolocation validation failures and operates within a subnet classified as high-abuse. No direct threat indicators detected, but contextual risk factors warrant monitoring.

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## INFRASTRUCTURE PROFILE

Ownership & Registration:

• ASN: 16276 (OVH SAS)
• Organization: Dmytro, Ahrefs Pte Ltd
• Network Block: 54.39.210.0/24
• RIR: ARIN
• Infrastructure Type: CloudCompute

Geolocation:

• Reported Location: Beauharnois, QC, Canada
• Validation Status: FAILED
• RTT Violation: Observed 28.0ms vs minimum possible 112.6ms for claimed distance (5,629km)
• Probe Count: 5
• Geo-Plausibility: False

Network Classification:

• Cloud Provider: OVH
• Service Purpose: Firewalled / No Services Detected
• DNS PTR Record: proxy-ca007-san127.ahrefs.net
• Hosted Domain: ahrefs.net
• Security Controls: No SPF/DMARC configured

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## THREAT INDICATORS

Direct Threat Signals:

• Blacklist Count: 0
• Known Campaigns: None
• Tor Exit Node: False
• Known Attacker: False
• Spam Source: False
• Abuse Confidence Score: Not applicable

Threat Feeds: No active threat feed matches

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## SUBNET CONTEXT (54.39.210.0/24)

Abuse Density Assessment:

• Subnet Classification: HIGH ABUSE
• Abuse Density: 0.8008 (80% of peers flagged)
• Total Siblings: 256
• Active Siblings: 201
• Threat Siblings: 205

Risk Distribution:

• High Risk Neighbors: 0
• Medium Risk Neighbors: 100
• Low Risk Neighbors: 0

The subnet exhibits elevated abuse characteristics with 80% of peers classified as threats. This contextual factor elevates the operational risk profile of the target IP.

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## OBSERVATION HISTORY

Total Observations: 22 signals

Key Historical Signals:

• 2026-06-20: High abuse density classification confirmed (0.8008)
• 2026-06-20: Geolocation validation failure recorded (RTT discrepancy)
• 2026-06-20: Provider classification confirmed (OVH cloud hosting)
• Recent: Minimal operator score (0.087), stability concerns

Threat Persistence: 0 days

Ownership Changes: 0

Persistently Malicious: False

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## RELATIONSHIP GRAPH

Connected Entities: 48 relationships

• Primary Association: OVH-CUST-281059686 network block
• All relationships indicate same-network connectivity
• No external entity correlations detected

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## ACTIONABLE INTELLIGENCE

Security Actions Recommended:

1. Monitor Context: Despite no direct threat indicators, the high-abuse subnet classification warrants ongoing monitoring for lateral threat activity.

2. Validate Communications: Geolocation inconsistencies suggest potential spoofing or misconfiguration. Verify claimed origin before establishing trust.

3. DNS Analysis: Ahrefs.net hosting with no SPF/DMARC configuration indicates potential email infrastructure gaps.

4. Network Segmentation: Consider enhanced filtering for traffic from this subnet given the 80% abuse density.

Firewall Considerations:

• No open ports detected
• Cloud-hosted infrastructure
• Low direct threat footprint
• Monitor for emerging abuse patterns within subnet

Threat Level: LOW-DIRECT / MODERATE-CONTEXT

Recommended Action: Monitor with standard logging; no immediate blocking required

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END OF BRIEFING

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