51.222.168.198
IP Intelligence Briefing: 51.222.168.198
*Last Updated: 2026-06-03*
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**1. Core Profile**
- Risk Score: 40 (Moderate Risk)
- Ownership:
- ISP: OVH (ASN 16276)
- Organization: Dmytro, Ahrefs Pte Ltd
- Subnet: 51.222.168.0/24
- Geolocation:
- Country: Canada (CA)
- City: Singapore (geo-plausibility violation: RTT < minimum expected for distance)
- Network Role:
- Cloud compute infrastructure (OVH-hosted, no residential/mobile attributes)
- No active services or open ports detected
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**2. Threat Indicators**
- No direct malicious indicators: No malware hashes, C2 domains, or spam signatures.
- DNSBL Listing: 1/8 DNS blacklists (potential spoofing or misconfiguration risk).
- Geo Anomalies:
- RTT (24ms) inconsistent with 5,598km distance (minimum expected: ~112ms).
- Geolocation data may be spoofed or inaccurate.
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**3. Network Relationships**
- Subnet: 51.222.168.0/24 (250 IPs, 133 flagged as high-risk).
- Shared Network: OVH-CUST-281059697 (high abuse density, 53.2% malicious activity).
- Connected Entities:
- DNS: `proxy-ca018-san198.ahrefs.net` (linked to Ahrefs Pte Ltd).
- Certificates: No TLS/SSL certificates detected.
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**4. Neighborhood Analysis**
- Subnet Abuse Density: 53.2% (high risk).
- Neighbor Risk Distribution:
- Medium Risk: 92 IPs (40–60 score range).
- Low Risk: 8 IPs.
- Notable Neighbors:
- 51.222.168.0/24 (shared subnet, moderate risk).
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**5. Temporal Trends**
- Observation History:
- First recorded: 2026-06-03.
- No persistent malicious activity detected (threat observation count: 1).
- Stability:
- BGP route stability: Unstable (route changes detected).
- Ownership stability: No changes.
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**6. Recommendations**
- Monitor: Subnet 51.222.168.0/24 for lateral movement or cluster-based threats.
- Investigate: DNSBL listing and geolocation anomalies (potential spoofing).
- Block: If this IP is part of a known attack pattern, apply firewall rules to block traffic.
- Verify: Confirm ownership legitimacy with OVH or Ahrefs Pte Ltd.
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*Source: IPDebrief Threat Intelligence Platform*
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-san198.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca018-san198.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 | 19% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 35% | 2 | 3 |
| Overall | 23% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:26 UTC |
| Last Seen | 2026-06-27 06:53:15 UTC |
| Profile Built | 2026-06-28 00:58:13 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 27 |
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