51.195.215.73📋 Copy

# IP INTELLIGENCE BRIEFING: 51.195.215.73/32

Date: 2026-06-19

Classification: Moderate Risk (Score: 40/100)

## Executive Summary

Target IP 51.195.215.73 is hosted on OVH infrastructure in London, England, associated with Ahrefs Pte Ltd Dmytro. The IP operates as a cloud computing host with no active services detected. Despite the individual IP's moderate risk score, the /24 subnet (51.195.215.0/24) exhibits high abuse density (0.7891) with 202 threat-identified siblings out of 238 active IPs. Recommended blocking action is available across major firewall platforms.

## Technical Profile

## Network Context & Abuse Environment

The target resides in the 51.195.215.0/24 subnet, which shows elevated abuse activity:

• Abuse Density: 0.7891 (high_abuse classification)
• Active Siblings: 238 / 256 total IPs
• Threat Siblings: 202 (85% of active IPs flagged as threats)
• Inherited Risk Score: 31

Risk distribution across the /24 subnet: 73 medium-risk IPs, 27 low-risk IPs, 0 high-risk IPs. The subnet's high abuse density suggests shared infrastructure abuse rather than isolated malicious activity from this specific IP.

## Threat Indicators

• Threat Persistence: 0 days
• Threat Observations: 1
• Known Campaigns: None
• Cert Matches: 0
• Banner Matches: 0
• Correlated IPs: 0
• DNSBL Listings: 1 (of 8 total)

Observation history indicates 26 signals captured, with the most recent from 2026-06-19 showing consistent subnet abuse patterns and no escalation in threat activity.

## Network Relationships

• Network Affiliation: OVH_282347345 (43+ relationship entries)
• Control Plane: Stable routing, RPKI valid, DNSSEC validated
• BGP Prefix: 51.195.0.0/16
• AS Path: 57866 16276

## Recommended Defensive Actions

## Analyst Notes

This IP should be blocked at perimeter defenses. While the individual risk score (40) appears moderate, the high-abuse subnet environment (202 threat siblings in /24) suggests potential for coordinated abuse. The IP's association with Ahrefs Pte Ltd Dmytro indicates legitimate hosting infrastructure, but the subnet's abuse patterns warrant monitoring. Consider blocking the entire /24 subnet if infrastructure permits, or implement rate limiting and connection monitoring at minimum.

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