51.103.104.209📋 Copy

# IP Intelligence Briefing: 51.103.104.209

Date: 2026-06-18

Classification: LOW RISK

Risk Score: 25/100

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## Executive Summary

IP 51.103.104.209 is a Microsoft Azure cloud infrastructure address classified as Low Risk. While the IP shows minimal threat indicators, it maintains 1 DNSBL listing and operates within a subnet with 1 identified threat sibling. The asset is stable, hosted in cloud infrastructure (Microsoft Azure, ASN 8075), and presents no immediate indicators of malicious activity.

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## Technical Profile

Ownership:

• ASN: 8075 (Microsoft Corporation)
• Organization: Divya Quamara
• RIR: ARIN
• BGP Prefix: 51.103.0.0/16

Geolocation:

• Country: United Kingdom (GB)
• Region: IDF
• City: Paris
• Timezone: Europe/London
• Geo Validation: ICMP blocked - validation via ICMP unavailable

Infrastructure Classification:

• Type: CloudCompute (Microsoft Azure)
• Hosting: Yes
• CDN/Proxy/Vpn: No
• Tor Exit Node: No
• Anycast: No

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## Threat Assessment

Current Risk Indicators:

• Risk Score: 25/100 (Low)
• Abuse Confidence Score: Not available
• Blacklist Count: 0
• DNSBL Listed: 1/8 total lists
• Threat Indicators: None detected
• Known Campaigns: None

Behavioral Analysis:

• Honeypot Hits: 0
• Enumeration Strikes: 0
• WAF Violations: 0
• Tor Usage: Not detected
• Spam Source: No

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## Service & Port Analysis

Open Ports: None detected

TLS Certificate: Not available

HTTP Title: Not available

Active Services: None observed

DNS Analysis:

• PTR Hostnames: None
• Forward Resolution: Not confirmed
• Hosted Domains: 0
• Email Auth: SPF/DMARC records not detected
• TXT Records: 0

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## Control Plane & Routing

Routing Stability:

• Route Stability: False
• Route Changes (30d): 0
• Is Route Stable: False
• Is MOAS: No
• RPKI State: Not available

DNS Security:

• DNSSEC Valid: Yes
• CAA Records: No
• Delegation Age: Not available
• Operator Score: 0.1304 (Minimal)

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## Neighborhood Analysis

Subnet: 51.103.104.209/24

Risk Distribution:

• High Risk: 0
• Medium Risk: 0
• Low Risk: 0

Abuse Density: 1 (Low)

Classification: Mostly Clean

Total Siblings: 1

Active Siblings: 0

Threat Siblings: 1

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## Historical Observation Summary

Total Observations: 19

Recent Activity:

• Most recent signal: 2026-06-18T11:52:16Z
• Historical geolocation signals show Paris, FR and GB region mappings
• Multiple signal types observed including routing, threat, and geolocation data
• No persistent malicious behavior detected (threat persistence days: 0)

Temporal Indicators:

• Ownership Changes: 0
• Is Persistently Malicious: False
• Threat Observation Count: 1

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## Recommended Actions

Current Action Recommendations: None

Monitoring Considerations:

• Monitor DNSBL listing status
• Track subnet 51.103.104.0/24 for emerging threat siblings
• Continue routine monitoring of Microsoft Azure cloud infrastructure patterns
• No immediate blocking or filtering required

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## Intelligence Narrative

This IP address represents a standard Microsoft Azure cloud computing infrastructure endpoint. The asset operates within the 51.103.0.0/16 BGP prefix under ASN 8075. While classified as low risk with a score of 25, the presence of 1 DNSBL listing warrants continued monitoring. The IP demonstrates cloud infrastructure characteristics with no active services or open ports detected. Historical data shows no persistent malicious activity. The subnet shows minimal abuse density with 1 threat sibling identified, suggesting the broader infrastructure is relatively clean. SOC analysts should treat this as benign cloud infrastructure with standard monitoring protocols.

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