51.161.65.119📋 Copy

# IP INTELLIGENCE BRIEFING

IP Address: 51.161.65.119/32

Report Date: 2026-06-29

Analyst: IPDebrief Intelligence Team

---

## EXECUTIVE SUMMARY

IP 51.161.65.119 presents as a moderate-risk address (risk score 40) hosted on OVH infrastructure in Montreal, Quebec. The IP resolves to aresolvable hostname for ahrefs.net and operates within a high-abuse subnet with elevated threat density. While no active malicious indicators were detected at the time of analysis, the neighborhood context warrants defensive monitoring.

---

## NETWORK OWNERSHIP & CLASSIFICATION

• Organization: Dmytro, Ahrefs Pte Ltd
• ASN: AS16276 (OVH SAS)
• CIDR Block: 51.161.65.0/24
• Infrastructure Type: CloudCompute / Hosting
• Geolocation: Montreal, QC, CA
• DNS Hostname: proxy-ca011-san119.ahrefs.net

The IP is classified as a cloud-hosted infrastructure resource with no open ports or active services observed.

---

## RISK PROFILE

• Overall Risk Score: 40 (Moderate Risk)
• Abuse Confidence: Not quantified
• Blacklist Status: Clean (0 lists)
• Threat Feeds: No indicators
• Campaign Association: None detected

The IP maintains a moderate risk posture with no evidence of direct malicious activity. However, the subnet classification and neighborhood context contribute to elevated overall risk assessment.

---

## SUBNET ANALYSIS (51.161.65.0/24)

• Abuse Density: 0.75 (High)
• Classification: High Abuse
• Total Subnet IPs: 256
• Active IPs: 213
• Threat IPs: 192

The /24 subnet exhibits high abuse density with approximately 75% of active addresses flagged for malicious activity. This contextual risk significantly influences the IP's overall threat assessment.

---

## OBSERVATION HISTORY

Analysis of 22 historical observations reveals consistent geolocation to Montreal, CA, with the high-abuse classification persisting across multiple observation periods. The operator score remained minimal (0.2174) throughout the observation window, indicating stable but elevated neighborhood risk.

---

## RELATIONSHIP GRAPH

37 relationships identified, primarily network-level associations within the OVH-CUST-281059690 customer block. No external threat actor associations or campaign-level indicators were detected.

---

## RECOMMENDED ACTIONS

Based on the risk profile and neighborhood context, the following defensive measures are recommended:

---

## ANALYST NOTES

The IP resolves to a legitimate ahrefs.net hostname but operates within a high-abuse OVH subnet. While direct malicious indicators were absent, the 192 threat-sibling addresses in the neighborhood suggest potential for abuse. SOC teams should monitor for outbound connections to this subnet and consider blocking at the perimeter, particularly for untrusted traffic sources.

---

Classification: Threat Intelligence

Status: Moderate Risk - Monitor/Block

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