51.195.183.137
IP Intelligence Briefing: 51.195.183.137
*Generated via IPDebrief Analysis*
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**1. Core Profile**
- Risk Score: 40 (Moderate Risk)
- Ownership: Ahrefs Pte Ltd (AS16276, OVH provider)
- Geolocation: London, England, UK (inferred with 750km accuracy)
- Network Role: CloudCompute infrastructure (OVH-hosted, no public services)
- Threat Indicators: No malicious activity detected (no blacklists, campaigns, or DNS anomalies).
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**2. Observation History**
- Recent Activity (Last 30 Days):
- Subnet abuse density: 63.67% (high_abuse classification).
- Inherited risk score: 25 (from subnet).
- Stability: Route instability detected (fluctuating BGP prefixes).
- Trend: No persistent malicious behavior; risk score remains stable.
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**3. Network Relationships**
- Connected Entities:
- Subnet: `51.195.183.137/24` (OVH network, AS16276).
- Linked hostname: `proxy-uk003-san137.ahrefs.net` (Ahrefs Pte Ltd).
- Infrastructure: Hosted by OVH, likely a cloud server with firewalled services.
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**4. Subnet Neighborhood**
- Subnet: `51.195.183.137/24` (256 total IPs, 175 active).
- Abuse Density: 63.67% (high_abuse classification).
- Neighbor Risks:
- 99 IPs flagged as medium-risk.
- 1 IP flagged as high-risk (unknown details).
- 1 IP with unresolved risk (51.195.183.0).
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**5. Recommendations**
- Monitoring: Continuously monitor the `51.195.183.137/24` subnet for lateral movement or anomalous traffic.
- Firewall Rules: Consider blocking the subnet if it aligns with known threat patterns.
- Domain Analysis: Investigate `ahrefs.net` for potential phishing or malicious activity.
- Geolocation Verification: Validate the London, UK location with additional geolocation tools.
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Note: The IP is part of a legitimate cloud provider’s infrastructure but resides in a subnet with elevated abuse activity. SOC teams should prioritize subnet-level monitoring over individual IP isolation.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Ahrefs Pte Ltd Dmytro |
| ASN | AS16276 |
| Network Name | — |
| CIDR Block | — |
| RIR | ARIN |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | proxy-uk003-san137.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk003-san137.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 | 29% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 24% | 2 | 3 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 24% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-20 11:46:56 UTC |
| Last Seen | 2026-06-28 11:55:02 UTC |
| Profile Built | 2026-06-29 05:58:41 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 26 |
Full dossier details are available via our API.