51.161.37.40📋 Copy

IP Intelligence Briefing: 51.161.37.40

Date: 2026-06-08

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**1. IP Profile**

• Risk Score: 40 (Moderate Risk)
• Ownership:

- ISP: OVH (ASN 16276)

- Organization: Dmytro, Ahrefs Pte Ltd

- Network: OVH-CUST-281059684

• Geolocation:

- Country: Canada (CA) | City: Singapore

- Coordinates: Unavailable

- Accuracy Radius: 3,000 km

• Network Role:

- Type: Cloud Compute (OVH infrastructure)

- Subnet: 51.161.37.0/24

- Abuse Density: 58.59% (high abuse subnet)

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**2. Threat Indicators**

• No Direct Threats:

- No malicious indicators (malware, phishing, C2, etc.)

- No blacklisted or spam sources

- Not associated with Tor, known attackers, or campaigns

• Subnet Risk:

- 150/256 sibling IPs flagged as threats

- 178 active IPs in subnet, 150 with abuse indicators

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**3. Observation History**

• Latest Activity: 2026-06-08

- Ownership Stability: Stable (9,244 days since allocation)

- Network Changes: No recent route changes (stable BGP prefix: 51.161.0.0/17)

- Email Reputation: No SPF/DKIM records detected

- DNS: Resolves to `proxy-ca005-san40.ahrefs.net` (Ahrefs domain)

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**4. Network Relationships**

• Linked Entities:

- Organization: Ahrefs Pte Ltd (OVH customer)

- Subnets: 51.161.0.0/17 (OVH allocated)

- BGP Peers: AS57866, AS16276 (OVH)

- Certificates: No TLS certs or domain validation records

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**5. Neighborhood Analysis**

• Subnet: 51.161.37.0/24
• Risk Distribution:

- High Risk: 0 IPs

- Medium Risk: 97 IPs (61%)

- Low Risk: 3 IPs (2%)

• Notable Neighbors:

- 51.161.37.0 (risk score: 50)

- 51.161.37.1–4 (risk score: 40)

• Abuse Density: 58.59% (high-risk subnet)

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**6. Recommendations**

• Monitor Subnet: The 51.161.37.0/24 subnet has a high abuse density; investigate neighboring IPs for lateral movement or botnet activity.
• Verify Geolocation: Discrepancy between country code (CA) and city (Singapore) may indicate misconfigured DNS or geolocation errors.
• Check Ahrefs Services: Confirm if the IP is part of legitimate Ahrefs infrastructure (proxy servers often have mixed risk profiles).
• Update Firewalls: Consider blocking high-risk neighbors in the subnet to mitigate potential lateral attacks.

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Source: IPDebrief Threat Intelligence Platform

Note: This IP is not directly malicious but resides in a high-risk subnet. SOC teams should prioritize monitoring network traffic and subnet-level anomalies.

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