51.161.37.48📋 Copy

# IP Intelligence Briefing: 51.161.37.48

Classification: Moderate Risk (Score: 40/100)

Date: Current Analysis

Data Sources: IPDebrief Full Profile, History, Relationships, Neighborhood

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## Executive Summary

IP 51.161.37.48 is a cloud-based hosting address under OVH infrastructure (ASN 16276) associated with Ahrefs Pte Ltd. The IP exhibits moderate risk characteristics with significant geolocation inconsistencies and operates within a high-abuse density subnet (51.161.37.0/24). No active threat campaigns or known attacker indicators identified, but the subnet context warrants defensive monitoring.

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## Infrastructure Profile

• IP Range: 51.161.37.0/24
• Organization: Dmytro, Ahrefs Pte Ltd
• Provider: OVH (CloudCompute/Hosting)
• ASN: 16276
• Network Classification: Cloud infrastructure with hosting services
• DNS Resolution: proxy-ca005-san48.ahrefs.net

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## Risk Indicators

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## Geolocation Discrepancies

Critical Finding: Significant geolocation validation failure detected.

• Claimed Location: Singapore
• Country Code: CA (Canada)
• Distance Anomaly: 6,082km with RTT of 27ms (minimum expected: 121.6ms)
• Validation Status: GEO-IMPLAUSIBLE

This RTT violation indicates either location spoofing, misconfigured DNS, or routing anomalies. The 6,082km distance combined with sub-minimal RTT suggests the IP may be presenting false geolocation data.

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## Neighborhood Analysis

The /24 subnet shows elevated abuse characteristics:

• Total Siblings: 256
• Active Siblings: 207 (81% utilization)
• Threat Siblings: 191 (73% of active)
• Abuse Density: 0.7461
• Subnet Classification: HIGH_ABUSE

Recommendation: Apply contextual awareness when evaluating this IP—the subnet environment shows 73% of active neighbors are associated with threat activity.

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## Historical Observations

• Total Signals: 21 observations
• Recent Activity: Domain resolution to ahrefs.net confirmed
• Provider Signals: Consistent OVH classification
• Threat Persistence: 0 days (not persistently malicious)

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## Relationship Graph

• Total Relationships: 41
• Primary Association: Same Network (OVH-CUST-281059684)
• No certificate or organization cross-associations beyond hosting network

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## Defensive Recommendations

1. Monitor Subnet Activity: The 51.161.37.0/24 subnet demonstrates high abuse density. Consider implementing subnet-level monitoring.

2. GeoValidation: Flag for review due to implausible RTT/distance mismatch. May indicate misconfiguration or evasion technique.

3. DNSBL Awareness: Monitor for additional blacklist additions; currently listed on 1 of 8 DNSBL feeds.

4. Contextual Decision: While individual IP shows no active threat indicators, the high-abuse subnet environment warrants defensive posture.

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## Risk Assessment

Overall Threat Level: MODERATE

Action Required: Monitor (No immediate blocking required)

Confidence Level: High

The IP presents no direct malicious indicators but operates within a high-risk subnet environment with geolocation inconsistencies that warrant continued monitoring.

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