54.39.89.250
IP Intelligence Briefing: 54.39.89.250
Date: 2026-06-16
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**1. Core Profile**
- Risk Score: Moderate (50/100)
- Provider: OVH (ASN 16276)
- Organization: Ahrefs Pte Ltd (OVH-CUST-281059691)
- Geolocation: Quebec, Canada (Beauharnois)
- Network Role: Cloud compute instance (OVH Hosting)
- Subnet: 54.39.89.0/24 (High Abuse Classification)
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**2. Threat Indicators**
- DNS Associations: Linked to `proxy-ca012-san250.ahrefs.net` (Ahrefs infrastructure).
- DNSBL Listings: 2 out of 8 DNSBLs (truncated list).
- Routing: BGP prefix `54.39.0.0/16` with stable route (no recent changes).
- Security Posture:
- DNSSEC and CAA records validated.
- No open ports or TLS certificates detected.
- No known malicious campaigns or spam sources.
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**3. Observation History**
- Recent Activity (2026-06-16):
- Minimal risk score (0.2174) with 3/8 signals analyzed.
- Geolocation confirmed as Canada (3000km accuracy radius).
- Historical Trends:
- No persistent malicious activity (0 threat observations in 30 days).
- Stability score remains low (0/100).
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**4. Network Relationships**
- Subnet Neighbors (54.39.89.0/24):
- 100 active IPs, 136 flagged as high-risk.
- Subnet abuse density: 53.75% (Moderate Risk).
- Key Associations:
- DNS hostname `proxy-ca012-san250.ahrefs.net` (Ahrefs).
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**5. Recommendations**
- Monitoring: Track DNSBL listings and subnet abuse density.
- Firewall: Apply egress rules to block traffic to known malicious subnets.
- Validation: Confirm Ahrefs infrastructure legitimacy via WHOIS and DNS records.
- Subnet Analysis: Investigate high-risk neighbors in 54.39.89.0/24 for potential lateral movement.
Note: No immediate action required, but continuous monitoring is advised due to subnet risk and DNSBL presence.
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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-281059691 |
| CIDR Block | 54.39.89.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca012-san250.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca012-san250.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 | 21% | 2 | 2 |
| routing | 13% | 1 | 1 |
| services | 21% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 15% | 1 | 2 |
| geolocation | 21% | 2 | 2 |
| Overall | 19% | 10 | 11 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-06-08 22:47:00 UTC |
| Last Seen | 2026-06-26 18:11:28 UTC |
| Profile Built | 2026-06-21 15:43:17 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 21 |
Full dossier details are available via our API.