51.222.168.37
IP Intelligence Briefing: 51.222.168.37
Date: 2026-06-11
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**1. Core Profile**
- Risk Rating: Moderate (Risk Score: 40/100)
- Ownership:
- ISP: OVH (ASN 16276)
- Organization: Dmytro, Ahrefs Pte Ltd
- Network: OVH-CUST-281059697 (51.222.168.0/24)
- Geolocation:
- Country: Canada (CA)
- City: Singapore (geo-plausibility flagged as uncertain)
- Network Role:
- Cloud infrastructure (OVH-hosted)
- No open ports, no TLS certificates, no HTTP services detected
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**2. Threat Indicators**
- No direct malicious activity detected (no indicators, blacklists, or campaigns).
- Subnet Abuse Density: 64.06% (high-risk classification).
- Neighbors:
- 256 total IPs in 51.222.168.0/24 subnet.
- 164 IPs flagged as high/medium risk.
- 214 active IPs, 25 inherited risk from subnet.
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**3. Network Relationships**
- DNS Associations:
- Linked to `proxy-ca018-san37.ahrefs.net` (likely Ahrefs infrastructure).
- Network Context:
- Part of OVH's cloud network; no CDN, VPN, or Tor activity detected.
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**4. Historical Observations**
- Recent Activity (last 30 days):
- 164 IPs in subnet reported as high/medium risk.
- 22 total observations (no significant trend upward).
- No persistent malicious behavior (threat persistence: 0 days).
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**5. Recommended Actions**
- Monitor Subnet: High abuse density suggests potential for lateral movement or compromised hosts.
- Validate Geolocation: Investigate Singapore vs. Canada discrepancy; verify if IP is spoofed or misconfigured.
- Check Ahrefs Infrastructure: Analyze `proxy-ca018-san37.ahrefs.net` for unusual traffic patterns.
- Segment Network: Consider isolating high-risk neighbors to mitigate potential spread.
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Conclusion:
This IP is part of a high-risk subnet with no direct malicious indicators but warrants closer scrutiny due to the surrounding network's abuse density. SOC teams should prioritize monitoring traffic patterns and validating geolocation data to mitigate potential risks.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059697 |
| CIDR Block | 51.222.168.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca018-san37.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Hosted Domain | ip37.ip-51-222-168.net |
| Forward Hostnames | proxy-ca018-san37.ahrefs.net |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 32% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 32% | 1 | 3 |
| geolocation | 40% | 2 | 3 |
| Overall | 24% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-26 00:50:59 UTC |
| Last Seen | 2026-06-29 02:32:59 UTC |
| Profile Built | 2026-06-29 08:36:25 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 25 |
Full dossier details are available via our API.