54.39.89.138📋 Copy

# IP Intelligence Briefing: 54.39.89.138

Classification: Moderate Risk

Date: 2026-06-15

Analyst: IPDebrief SOC Intelligence Team

---

## Executive Summary

IP address 54.39.89.138 is a cloud-based infrastructure asset hosted on OVH infrastructure with moderate risk characteristics (Risk Score: 40). The IP resolves to ahosted under the Ahrefs domain infrastructure and is part of a subnet exhibiting elevated abuse density metrics. No active threat indicators or known malicious campaigns were identified during the latest observation window.

---

## Technical Profile

---

## DNS & Service Analysis

DNS Resolution:

• PTR Hostname: `proxy-ca012-san138.ahrefs.net`
• Forward Resolution: Confirmed
• Forward Hostnames: `proxy-ca012-san138.ahrefs.net`

Service Exposure:

• Open Ports: None detected
• TLS Certificate: Not observed
• HTTP Title: Not observed
• Status: Firewalled / No Services

---

## Threat Indicators

---

## Neighborhood Analysis (54.39.89.0/24)

• Total Siblings: 256
• Active Siblings: 125
• Threat Siblings: 182
• Abuse Density: 0.7109 (High Abuse Classification)
• Inherited Risk: 28
• Risk Distribution in /24: 0 High, 100 Medium, 0 Low

Note: The subnet shows elevated abuse density with a significant portion of sibling IPs flagged as medium-risk. The target IP shares infrastructure characteristics with multiple neighboring addresses.

---

## Observation History

Total Observations: 19 signals

Key Historical Signals:

1. Ownership Stability: Consistent ownership with no changes detected (0 ownership changes)

2. Threat Persistence: 0 threat persistence days (no persistent malicious activity)

3. Geo Validation: Discrepancy detected between claimed geolocation (Beauharnois, QC) and network latency measurements. RTT violation: 27ms observed vs. minimum possible 112.6ms for 5,629km distance.

4. Control Plane: DNSSEC validation confirmed. Operator score: 0.2174 (Minimal)

5. Route Stability: BGP route changes recorded in last 30 days

---

## Relationship Graph

Total Relationships: 48 identified

• Primary relationship type: Same Network (OVH-CUST-281059691)
• No external entity relationships detected (organizations, hostnames, certificates beyond DNS)

---

## Recommended Security Actions

Based on the moderate risk profile and infrastructure classification:

1. Allow by default: The IP is cloud-hosted infrastructure with no open services detected

2. Monitor for changes: Track DNS resolution patterns for the ahrefs.net hostname

3. Contextual review: Consider the subnet-level abuse density (0.7109) when evaluating traffic patterns

4. No immediate blocking recommended: No active threat indicators present

---

## Conclusion

IP 54.39.89.138 is a cloud-compute infrastructure address associated with OVH hosting. The moderate risk score reflects the subnet-level abuse density rather than IP-specific malicious activity. No direct threat indicators were observed. SOC teams should monitor for changes in DNS resolution patterns and be aware of the elevated abuse density within the parent subnet.

---

*Intelligence generated by IPDebrief Platform. Data current as of 2026-06-15.*

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.