20.151.5.99📋 Copy

# INTELLIGENCE BRIEFING: 20.151.5.99/32

Classification: Azure Infrastructure Endpoint

Date: 2026-06-15

Risk Level: Moderate (50/100)

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## EXECUTIVE SUMMARY

IP 20.151.5.99 is a Microsoft Azure cloud compute endpoint located in Redmond, WA, US (ASN 8075). The IP operates HTTPS services on port 443 and presents as legitimate Microsoft infrastructure. Risk score of 50/100 indicates moderate classification, requiring contextual evaluation before blocking actions. No active threat indicators detected.

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## INFRASTRUCTURE PROFILE

Ownership:

• Organization: Microsoft Corporation
• ASN: 8075 (MSFT)
• BGP Prefix: 20.150.0.0/15
• RIR: ARIN

Network Role:

• Infrastructure Type: Cloud Compute
• Classification: Microsoft Azure
• Hosting Status: Active
• Connection Type: Internet-facing

Geolocation:

• Country: United States (US)
• Region: Washington (WA)
• City: Redmond
• Coordinates: 47.67°N, -122.12°W
• Geo Validation: Plausible (2 sources)

---

## SERVICE FINGERPRINT

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## THREAT INTELLIGENCE

Threat Indicators:

• Known Attacker: No
• Spam Source: No
• Tor Exit Node: No
• Blacklist Count: 0
• Known Campaigns: None

Control Plane:

• DNSBL Listed: 2 of 8 total lists
• Route Stability: False
• Operator Score: 0.1304 (Minimal)
• RPKI State: Not verified
• IRR Consistency: Not verified

Historical Signals:

• Total Observations: 24
• Threat Persistence Days: 0
• Ownership Changes: 0
• Last Updated: 2026-06-15

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## NEIGHBORHOOD ANALYSIS

Subnet: 20.151.5.99/24

• Abuse Density: 0
• Classification: Clean
• Threat Siblings: 0
• Active Siblings: 1
• Total Siblings: 1

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## RELATIONSHIP GRAPH

Connected Entities: 21 relationships identified

• All relationships classified as "Same Network" (MSFT)
• No external network associations detected
• No certificate or hostname relationships beyond Microsoft infrastructure

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## RECOMMENDATIONS

Risk Assessment: The moderate risk score (50/100) is attributable to DNSBL presence (2/8 lists) and route instability, not active malicious behavior. Given the confirmed Microsoft Azure infrastructure status, blocking is not recommended unless additional contextual signals indicate abuse.

If Block Required:

```bash

# iptables

iptables -A INPUT -s 20.151.5.99 -j DROP

# nftables

nft add rule inet filter input ip saddr 20.151.5.99 drop

# Cloudflare WAF

{"description":"Block 20.151.5.99 — IPDebrief risk score 50", "action":"block", "filter":{"expression":"ip.src eq 20.151.5.99"}}

# AWS WAF

{"Addresses":["20.151.5.99/32"],"Description":"IPDebrief risk 50"}

```

Operational Notes:

• Firewall rules marked as probabilistic; verify with additional signals
• Route instability flagged; monitor for BGP changes
• DNSSEC validation confirmed; trust relationship established
• No actionable threat intelligence requiring immediate response

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END OF BRIEFING

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