51.195.183.178📋 Copy

## IP Intelligence Briefing: 51.195.183.178

Classification: Moderate Risk / Hosted Infrastructure

Date: 2026-06-18

Intel Level: Standard

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**Executive Summary**

IP 51.195.183.178 resolves to Ahrefs Pte Ltd Dmytro infrastructure, hosted on OVH (ASN 16276) in London, England. The address demonstrates moderate risk (score: 40) with no active services—appears firewalled. However, the /24 subnet exhibits elevated abuse density (0.707) with 181 threat-sibling IPs observed out of 256 total addresses.

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**Ownership & Infrastructure**

• Provider: OVH (ASN 16276)
• Organization: Ahrefs Pte Ltd Dmytro
• Geolocation: London, England, GB (GeoPlausible: true, min RTT: 84ms)
• DNS Resolution: proxy-uk003-san178.ahrefs.net (ahrefs.net)
• Network Role: Hosting infrastructure (firewalled/no services exposed)

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**Threat Assessment**

• Risk Score: 40/100 (Moderate)
• DNSBL Listings: 1 of 8 major lists
• Known Attacker: No
• Tor Exit Node: No
• Spam Source: No
• Campaign Association: None detected

Key Risk Factor: While the IP itself shows no active malicious indicators, the parent subnet (51.195.183.0/24) is classified as HIGH ABUSE with an abuse density of 0.707. Of 208 active sibling IPs in the subnet, 181 are flagged as threats.

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**Historical Trends**

Analysis of 28 observations from the past 28 days shows:

• Consistent London geolocation with stable RTT metrics (avg: 86.8ms)
• Persistent DNS resolution to ahrefs.net
• No observed escalation in threat activity
• Control plane signals indicate "Basic" operator classification (score: 0.4348)

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**Network Relationships**

• 54 relationships identified, predominantly same-network links to OVH_282347339
• Route origin: 51.195.0.0/16 via AS57866, AS16276
• BGP routing stable (no route changes in 30 days)

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**Recommended Actions**

• SOC: Monitor inbound traffic patterns; consider enhanced logging if traffic originates from this subnet
• Firewall: No immediate blocking required for this specific IP due to lack of active services
• Subnet Awareness: Flag all 51.195.183.0/24 addresses for monitoring given high abuse density
• Allow Rules: No positive indicators suggest blocking; maintain standard inspection

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**Conclusion**

This IP represents legitimate hosting infrastructure for Ahrefs with moderate risk scoring. However, SOC teams should monitor traffic from the 51.195.183.0/24 subnet due to significant abuse activity within the neighborhood. The IP itself shows no active malicious behavior but warrants standard inspection protocols for hosted infrastructure.

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