IP Intelligence Briefing: 54.39.203.200/32
Date: [Insert Date]
1. Risk Profile
- Risk Score: 40 (Moderate Risk)
- Ownership: Registered to OVH-CUST-281059687 (Ahrefs Pte Ltd, AS16276).
- Geolocation: Located in Beauharnois, QC, Canada (latitude 45.3161, longitude -73.8736).
- Network Role: CloudCompute infrastructure (OVH-hosted).
2. Threat Indicators
- No direct malicious indicators (no abuse reports, spam, or known attacker associations).
- Subnet Abuse Density: 52.55% (high abuse classification).
- RTT Anomaly: Observed RTT of 28ms for 5,629km distance, which is below the expected minimum (112.6ms). This suggests potential geolocation spoofing or proxy activity.
3. Network Relationships
- Neighbors: 100 IPs in 54.39.203.0/24 subnet.
- Abuse Distribution: 95 IPs flagged as high/medium risk, 5 low risk.
- Shared Network: Subnet linked to OVH-CUST-281059687 (same ASN).
4. DNS & Services
- PTR Record: `proxy-ca008-san200.ahrefs.net` (points to Ahrefs domain).
- Open Ports: None detected.
- TLS Certificates: No active certificates.
5. Recommended Actions
- Block IP: Implement firewall rules to block 54.39.203.200/32 (see below).
- Monitor Subnet: Given high abuse density, investigate adjacent IPs for suspicious activity.
- Verify Geolocation: Confirm if the IP is spoofing its location, especially given RTT anomalies.
Firewall Rules (Sample):
- iptables: `iptables -A INPUT -s 54.39.203.200 -j DROP`
- Cloudflare WAF: Block IP with rule `ip.src eq 54.39.203.200`
- AWS WAF: Add `54.39.203.200/32` to a new rule with "Block" action.
Conclusion:
This IP is part of a subnet with significant abuse activity but lacks direct malicious indicators. The geolocation discrepancy and subnet risk profile suggest potential spoofing or compromised infrastructure. Block the IP and monitor its network for signs of lateral movement or data exfiltration.
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*Generated using IPDebrief threat intelligence tools. All data reflects observed signals as of [insert date].*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059687 |
| CIDR Block | 54.39.203.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | โ |
๐ DNS Intelligence
| PTR | proxy-ca008-san200.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca008-san200.ahrefs.net |
๐ DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
โ๏ธ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting โ Infrastructure provider without advanced routing |
๐ 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 | โ |
| HTTP Title | โ |
๐ TLS Certificate
| SANs | None |
| Valid From | โ |
| Valid Until | โ |
๐ฏ Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 36% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 15% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 24% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) โ 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-21 14:58:05 UTC |
| Last Seen | 2026-06-28 14:40:27 UTC |
| Profile Built | 2026-06-29 08:46:00 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 26 |
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