51.222.168.190
IP Intelligence Briefing: 51.222.168.190
Date: 2026-06-10
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**1. Risk Profile**
- Risk Score: 50 (Moderate Risk)
- Provider: OVH (ASN 16276)
- Ownership: Dmytro, Ahrefs Pte Ltd (OVH-CUST-281059697)
- Geolocation:
- Country: Canada (arin RIR)
- City: Singapore (geolocation inconsistency)
- Coordinates: 45.51°N, -73.59°E
- Network Role: CloudCompute (OVH-hosted, no public services)
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**2. Threat Indicators**
- No direct malicious indicators (no abuse reports, spam, or known campaigns).
- DNS Associations: Linked to `proxy-ca018-san190.ahrefs.net` (Ahrefs Pte Ltd).
- BGP/Control Plane:
- Route stability: Unstable (routeChanges30d = 0, isRouteStable = false).
- DNSSEC valid, CAA records present.
- DNSBL Listings: 2/8 lists (low priority).
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**3. Observation History**
- First Recorded: 2026-06-01 (ownership details).
- Recent Activity:
- 2026-06-10: Minimal risk score (0.2174 operator score).
- No persistent threats or reconnaissance detected.
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**4. Network Relationships**
- Subnet: 51.222.168.0/24 (OVH-CUST-281059697).
- Neighbors:
- 100 IPs in subnet (88 medium-risk, 12 low-risk).
- Abuse Density: 0 (no high-risk IPs).
- DNS:
- PTR hostname: `proxy-ca018-san190.ahrefs.net` (Ahrefs Pte Ltd).
- No email authentication records (SPF/DMArc).
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**5. Security Actions**
- Firewall Rules (Recommended):
- iptables: `iptables -A INPUT -s 51.222.168.190 -j DROP`
- nftables: `nft add rule inet filter input ip saddr 51.222.168.190 drop`
- Cloudflare/WAF: Block IP with rule: `ip.src eq 51.222.168.190`
- No urgent action required due to lack of active threats, but monitor for anomalies.
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**6. Recommendations**
1. Verify Geolocation Discrepancy: Investigate why the IP reports "Canada" but is associated with Singapore-based Ahrefs.
2. Monitor Subnet: The /24 subnet contains 88 medium-risk IPs; consider segmenting or isolating this network.
3. Check DNS Hostname: Analyze `proxy-ca018-san190.ahrefs.net` for potential reconnaissance or C2 activity.
4. Retain for Legitimate Use: If this IP is part of a legitimate cloud infrastructure, ensure it’s not exposed to unnecessary traffic.
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End of Briefing
*Generated by IPDebrief for SOC operational use.*
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-san190.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca018-san190.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 | |||
| 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 | 33% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 19% | 2 | 2 |
| reputation | 22% | 1 | 3 |
| geolocation | 19% | 2 | 2 |
| Overall | 18% | 9 | 13 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-25 12:42:50 UTC |
| Last Seen | 2026-06-29 01:43:57 UTC |
| Profile Built | 2026-06-29 01:51:49 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 20 |
Full dossier details are available via our API.