198.244.183.221
IP Intelligence Briefing: 198.244.183.221
Date: 2026-06-08
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**1. Profile Summary**
- Risk Score: 40 (Moderate Risk)
- Ownership: Ahrefs Pte Ltd (OVH ASN 16276)
- Geolocation: London, England (GB), with plausible geolocation but uncertain coordinates.
- Network Role: CloudCompute instance (OVH-hosted, no services exposed).
- Threat Indicators: No malicious indicators, not listed in blacklists, no known campaigns.
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**2. Observation History**
- Recent Activity:
- Scanned for open ports (no services detected).
- Subnet abuse density analysis (198.244.183.221/24) shows high abuse (density: 0.6172).
- DNS association with `proxy-uk004-san221.ahrefs.net` (likely legitimate Ahrefs infrastructure).
- Trend: No significant changes in risk signals over time.
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**3. Relationships**
- Network Associations:
- Linked to OVH network (AS16276) with 256 total siblings in the /24 subnet.
- 121 active neighbors, 158 flagged as threats (subnet-wide risk).
- DNS:
- Resolves to `proxy-uk004-san221.ahrefs.net` (no email/DNSSEC anomalies).
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**4. Subnet Analysis**
- Subnet: 198.244.183.221/24
- Abuse Density: High (0.6172), with 158 malicious neighbors.
- Neighbor Risk: Moderate (avg. 40), but subnet-wide threats suggest potential lateral movement risk.
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**5. Recommendations**
- Monitor Subnet: The high abuse density in the subnet warrants closer scrutiny.
- Block Subnet: Consider blocking the entire /24 subnet (198.244.183.0/24) to mitigate potential lateral movement risks.
- Verify DNS: Confirm legitimacy of `proxy-uk004-san221.ahrefs.net` and ensure no DNS hijacking.
- Cloud Provider Coordination: Engage OVH to investigate suspicious activity in the subnet.
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Conclusion: The IP appears legitimate (Ahrefs infrastructure) but resides in a high-risk subnet. While no direct threats are detected, the subnet’s abuse density suggests potential indirect risks. Proactive monitoring and subnet-level controls are advised.
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-uk004-san221.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk004-san221.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 | 31% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 24% | 2 | 3 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 25% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-19 03:35:39 UTC |
| Last Seen | 2026-06-28 08:21:22 UTC |
| Profile Built | 2026-06-29 02:26:05 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 27 |
Full dossier details are available via our API.