54.39.6.51📋 Copy

# IP Intelligence Briefing: 54.39.6.51

Classification: Moderate Risk

Analysis Date: Current

## Executive Summary

IP 54.39.6.51 operates on OVH cloud infrastructure within a high-abuse subnet environment. The address carries a risk score of 50 and is listed on 2 of 8 DNSBLs. Associated with Ahrefs Pte Ltd organizational footprint. SOC analysts should monitor for suspicious activity patterns but may not require immediate blocking unless correlated with other threat indicators.

## Ownership and Infrastructure

• Organization: Dmytro, Ahrefs Pte Ltd
• ASN: 16276 (OVH)
• CIDR Block: 54.39.6.0/24
• Infrastructure Type: Cloud compute (OVH hosting)
• Geolocation: Beauharnois, Quebec, Canada
• Network Role: Firewalled / No Services detected

## Threat Assessment

Threat Indicators:

• DNSBL listings present (2 of 8 total lists)
• No known campaigns or attacker attribution
• No Tor exit node, spam source, or known attacker flags

## Neighborhood Analysis

Subnet: 54.39.6.0/24

Abuse Density: 68.36% (High Abuse Classification)

Risk Distribution:

• High: 0
• Medium: 38
• Low: 62

Context: This /24 subnet exhibits elevated abuse activity with 175 threat-sibling IPs identified among 206 active siblings. The IP's inherited risk score of 27 reflects neighborhood influence.

## Historical Observations

Recent signal history (15 observations) indicates:

• Consistent high-abuse subnet classification
• Geographic data: Canada (CA) with 3000km accuracy radius
• Operator score: 0.2174 (Minimal)
• DNSSEC valid: Yes
• CAA records: Present
• Route stability: Unstable (route changes observed)

## DNS and Service Analysis

• PTR Hostname: proxy-ca001-san51.ahrefs.net
• Forward Resolution: proxy-ca001-san51.ahrefs.net
• Open Ports: None detected
• TLS/HTTP Services: No active services observed
• Email Auth: SPF/DMARC not configured

## Recommended Actions

Note: Firewall rules are probabilistic. Validate with additional threat context before enforcement.

## Intelligence Notes

The IP belongs to a hosting provider environment (OVH) with no publicly accessible services currently detected. While the subnet shows elevated abuse density, the specific IP lacks active service exposure. Monitor for any service emergence or correlation with known threat actors. The PTR hostname suggests legitimate use for Ahrefs-related infrastructure, but DNSBL listings warrant continued observation.

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