51.195.215.12📋 Copy

# IP INTELLIGENCE BRIEFING: 51.195.215.12/32

Classification: Moderate Risk / Cloud Infrastructure

Date: 2026-06-15

Analyst: IPDebrief Intelligence Unit

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## EXECUTIVE SUMMARY

IP 51.195.215.12 is a cloud compute infrastructure address operated by OVH (ASN: 16276) within the United Kingdom. The IP presents a moderate risk profile (Score: 40) with no active malicious indicators. The address is associated with Ahrefs Pte Ltd and resolves to proxy-uk009-san12.ahrefs.net. While the IP itself shows no direct threat indicators, the /24 subnet exhibits elevated abuse density (0.7617), suggesting contextual risk from neighboring addresses.

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## CORE PROFILE

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## THREAT ASSESSMENT

Direct Indicators:

• No known malicious campaigns detected
• No active threat feeds matches
• Zero blacklist entries (abuseConfidenceScore: null)
• Not identified as Tor exit node, spam source, or known attacker
• No open ports or active services exposed

Contextual Risk:

• /24 subnet classified as "high_abuse" with abuse density of 0.7617
• Subnet contains 256 total siblings; 199 active, 195 threat siblings
• Control plane shows unstable routing (isRouteStable: false)
• Listed on 1 of 8 DNSBL checks

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## OBSERVATION HISTORY

Analysis Period: 19 total observations

Recent Activity: 2026-06-15

Temporal analysis indicates stable ownership patterns with no malicious activity persistence. Historical operator scoring remains consistent at 0.2174. Geolocation confidence varies (0.28–0.60) across observation periods. No significant escalation in threat signals observed.

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## NETWORK RELATIONSHIPS

• 34 relationships identified
• Network Associations: Multiple connections to OVH_282347345 (same network block)
• No certificate or hostname correlations beyond primary DNS records
• No correlated IPs across campaigns or threat intelligence feeds

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## NEIGHBORHOOD ANALYSIS

Subnet: 51.195.215.0/24

Sample Neighbor Risk Scores:

• 51.195.215.0: Risk 40 / Authority 50
• 51.195.215.1: Risk 40 / Authority 50
• 51.195.215.2: Risk 40 / Authority 50

The subnet exhibits widespread medium-risk characteristics with concentrated threat activity.

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## RECOMMENDED ACTIONS

Detection & Monitoring:

1. Monitor for DNS queries to ahrefs.net from unexpected sources

2. Flag outbound traffic to proxy-uk009-san12.ahrefs.net for review

3. Implement subnet-level awareness for 51.195.215.0/24 due to high abuse density

Blocking Decision:

• Block: No (IP shows no direct malicious indicators)
• Monitor: Yes (contextual subnet risk warrants observation)
• Allow: Yes (legitimate cloud infrastructure for Ahrefs services)

Firewall Rules:

• No immediate blocking required
• Consider rate limiting for connections to this IP if part of broader subnet monitoring

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END OF BRIEFING

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