# IP INTELLIGENCE BRIEFING: 54.39.89.96/32
Date: 2026-06-27
Classification: Moderate Risk (Score: 40/100)
Analyst: IPDebrief Intelligence Team
---
## EXECUTIVE SUMMARY
IP address 54.39.89.96 resolves to a cloud computing infrastructure endpoint operated by OVH within the Ahrefs network. The endpoint presents a moderate risk profile (score 40/100) with no direct threat indicators but operates within a high-abuse density subnet (0.7461). The IP is associated with the ahrefs.net domain and exhibits no active services or open ports. Recent observation data shows 8 blacklist listings with maximum severity "high," suggesting potential involvement in distributed abuse campaigns.
---
## NETWORK OWNERSHIP & GEOLOCATION
Owner: Dmytro, Ahrefs Pte Ltd
ASN: 16276 (OVH)
Network: OVH-CUST-281059691 / 54.39.89.0/24
RIR: ARIN
Location: Beauharnois, QC, Canada (CA)
Coordinates: 56.13°N, -106.35°W
Timezone: UTC-4 (EST)
The IP resides in OVH's cloud compute infrastructure and resolves to the hostname proxy-ca012-san96.ahrefs.net. DNSSEC validation is enabled, and CAA records are present.
---
## THREAT PROFILE
Risk Score: 40/100 (Moderate)
Abuse Confidence Score: Not available
Classification: CloudCompute / Hosting
Services: Firewalled / No Services
Tor Exit Node: No
Known Attacker: No
Spam Source: No
Threat Indicators:
- No direct threat indicators identified
- No known malicious campaigns associated
- No active threat feeds correlation
- Blacklist count: 0 (direct listings)
Control Plane Assessment:
- Operator Score: 0.2174 (Minimal)
- Route stability: Not stable
- Route changes (30-day): 0
- DNSSEC Valid: Yes
- RPKI State: Not assessed
- IRR Consistency: Not assessed
---
## SUBNET ANALYSIS (54.39.89.0/24)
Subnet Classification: High Abuse
Abuse Density: 0.7461 (High)
Total Siblings: 256
Active Siblings: 163
Threat Siblings: 191
Risk Distribution:
- High Risk: 0
- Medium Risk: 100
- Low Risk: 0
The /24 subnet demonstrates concentrated abuse activity with 191 out of 163 active siblings flagged as threats. This elevated neighborhood risk suggests coordinated or systemic abuse patterns within the OVH infrastructure block.
---
## OBSERVATION HISTORY
Total Observations: 21
Recent Activity:
- 2026-06-27 23:58:50: 8 total blacklist listings (2 active, max severity: high)
- 2026-06-19 22:00:18: Subnet classification updated to "high_abuse" with inherited risk 29
- 2026-06-19 21:53:42: Operator score assessment completed (0.2174)
- 2026-06-14 21:55:08: Geolocation data collected (CA, confidence 0.35)
The IP shows 1 total threat observation and is not classified as persistently malicious. However, the high-severity blacklist activity from 2026-06-27 warrants attention.
---
## RELATIONSHIP GRAPH
Total Relationships: 55
Primary Associations:
- 50+ relationships mapped to network identifiers (OVH-CUST-281059691)
- No external hostname or certificate relationships beyond network associations
- No correlated IPs from campaign correlation
The relationship graph indicates strong network-level associations with minimal external entity connections.
---
## RECOMMENDED ACTIONS
Risk Score: 40/100
Provider: OVH
Recommended Firewall Rules:
iptables:
```bash
iptables -A INPUT -s 54.39.89.96 -j DROP
```
nftables:
```bash
nft add rule inet filter input ip saddr 54.39.89.96 drop
```
nginx:
```nginx
deny 54.39.89.96;
```
pfSense:
```
54.39.89.96/32
```
Cloudflare WAF:
```json
{
"description": "Block 54.39.89.96 โ IPDebrief risk score 40",
"action": "block",
"filter": {
"expression": "ip.src eq 54.39.89.96"
}
}
```
AWS WAF:
```json
{
"Addresses": ["54.39.89.96/32"],
"Description": "IPDebrief risk 40"
}
```
---
## INTELLIGENCE ASSESSMENT
The IP 54.39.89.96 presents moderate risk within a high-abuse OVH subnet. Key findings:
1. Infrastructure: Cloud compute endpoint with no active services; likely a proxy or relay node
2. Abuse Context: Operates in a subnet with 74.61% abuse density and 191 threat-sibling IPs
3. Threat Signals: Recent high-severity blacklist activity (8 total listings) suggests potential involvement in distributed abuse
4. Network Context: Strong association with ahrefs.net domain, but no direct service exposure
Recommendation: Implement blocking rules per firewall platform. Monitor for campaign correlation and validate against additional threat intelligence feeds before permanent action. The subnet-level abuse density warrants consideration of broader network segmentation policies.
---
*Generated by IPDebrief Intelligence Platform*
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-281059691 |
| CIDR Block | 54.39.89.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | โ |
๐ DNS Intelligence
| PTR | proxy-ca012-san96.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca012-san96.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 | 19% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 25% | 2 | 2 |
| Overall | 23% | 10 | 14 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-13 19:05:38 UTC |
| Last Seen | 2026-06-27 23:58:53 UTC |
| Profile Built | 2026-06-28 18:03:44 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 24 |
Full dossier details are available via our API.