51.195.244.55📋 Copy

# IP Intelligence Briefing: 51.195.244.55/32

## Executive Summary

IP address 51.195.244.55 presents a moderate risk profile (risk score: 40) associated with legitimate cloud infrastructure hosting services. The IP is registered under Ahrefs Pte Ltd Dmytro, operating on OVH network infrastructure in London, England. While the IP itself shows no direct malicious indicators, the /24 subnet exhibits high abuse density (0.8314) with 212 threat siblings among 255 active addresses, warranting contextual monitoring.

## Network Infrastructure & Ownership

• ASN: 16276 (OVH)
• Organization: Ahrefs Pte Ltd Dmytro
• RIR: ARIN
• Infrastructure Type: CloudCompute, Hosting
• Connection Type: Firewalled / No Services Detected
• BGP Prefix: 51.195.0.0/16
• Route Stability: False (route changes observed)
• DNSSEC: Valid
• CAA Records: Present

## Geographic Analysis

• Country: United Kingdom (GB)
• Region: England
• City: London
• Geo Confidence: Plausible (geoPlausible: true, geoConsensus: true)
• Geolocation Accuracy: 750 km radius
• Network Distance from Claimed Location: 473.7 km
• Average RTT: 91.8 ms

## Threat Indicators & Reputation

• Risk Score: 40 (Moderate Risk)
• Blacklist Count: 0
• Known Attacker: False
• Spam Source: False
• Tor Exit Node: False
• Threat Feeds: None detected
• DNSBL Listed: 1 of 8 total lists
• Operator Score: 0.2174 (Minimal)

## Network Context & Neighborhood Risk

The /24 subnet 51.195.244.0/24 is classified as high_abuse with concerning neighbor distribution:

• Abuse Density: 0.8314
• Active Siblings: 220 of 255 total
• Threat Siblings: 212
• Inherited Risk: 33
• Neighbor Risk Distribution: Predominantly medium risk (100 of 100 sampled neighbors scored 40)

This elevated neighborhood risk suggests the IP shares infrastructure with potentially compromised peers.

## Behavioral & Historical Signals

• Observation Count: 21 historical signals recorded
• Last Observation: 2026-06-15
• Threat Persistence Days: 0
• Is Persistently Malicious: False
• Campaign Likelihood: None
• Cert Matches: 0
• Correlated IPs: 0

Recent geo-validation probes (5 probes) confirmed plausible UK location with RTT consistency. No service banners or open ports detected across recent scans.

## Security Recommendations

Based on the moderate risk score and high-abuse neighborhood context:

1. Monitor Contextually: Flag for monitoring due to high-density abuse subnet, but treat as legitimate cloud infrastructure

2. Apply Standard CloudCompute Rules: Allow established traffic patterns but monitor for behavioral anomalies

3. DNS Traffic Analysis: PTR hostname proxy-uk000-san55.ahrefs.net suggests legitimate proxy infrastructure

4. No Immediate Blocking Warranted: IP shows no direct threat indicators; blocking may impact legitimate services

5. Correlation Recommended: Monitor for activity patterns matching known Ahrefs infrastructure

## Classification Summary

• Network Role: Cloud Hosting Provider
• Risk Level: Moderate
• Action Required: Contextual Monitoring
• Confidence: High (based on 21 historical observations and 34 relationship signals)

---

*Intelligence generated from IPDebrief platform data. All findings based on observable network telemetry and reputation feeds.*

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