20.203.135.57📋 Copy

# IP Intelligence Briefing: 20.203.135.57

Classification: Cloud Infrastructure (Microsoft Azure)

Risk Level: Low (Score: 25/100)

Date: August 2026

## Ownership and Infrastructure Profile

IP 20.203.135.57 is owned by Microsoft Corporation (ASN 8075), assigned to the Microsoft Azure cloud infrastructure network (20.192.0.0/10). The address is classified as a cloud compute resource with a service purpose of single-service host.

Network Classification:

• Provider: Microsoft Azure
• Infrastructure Type: CloudCompute
• Geographic Location: Zurich, CH (Switzerland)
• CIDR Block: 20.192.0.0/10
• Routing Origin: ASN 8075

## Threat Indicators Assessment

Threat Status: No active threat indicators detected

• Abuse Confidence Score: Not applicable
• Blacklist Count: 0
• Is Tor Exit: False
• Is Known Attacker: False
• Is Spam Source: False

The IP shows no associations with known malicious campaigns or threat feeds.

## Neighborhood Analysis

The /24 subnet (20.203.135.0/24) is classified as "mostly_clean" with low abuse density. Analysis reveals:

• Abuse Density: 1
• Classification: mostly_clean
• Inherited Risk: 2
• Active Siblings: 1
• Threat Siblings: 1

No neighboring IPs in the immediate subnet show elevated risk characteristics.

## Technical Observations

Open Services:

• Port 80/TCP: HTTP (nginx/1.31.2)

Network Role:

• Single-Service Host
• Cloud-based infrastructure (Microsoft Azure)
• Not configured as CDN, VPN, proxy, or hosting service

HTTP Response:

• Status Code: 302 (redirect)
• Server Banner: nginx/1.31.2
• Response Time: 202ms

## Historical Signal Analysis

Observation history contains 21 data points from August 2026. Recent observations indicate:

• Geolocation signals show US-based detection (confidence: 0.35)
• Operator score: Minimal (0.1304)
• DNSSEC validation status: Minimal
• One DNSBL listing detected with high severity (1 of 8 lists)

The temporal data indicates no persistent malicious behavior with zero threat persistence days recorded.

## Relationship Graph

Analysis reveals 13 relationships, all classified as "Same Network" to Microsoft (MSFT). No external entity relationships detected.

## Recommended Actions

Based on the low-risk profile and confirmed Microsoft Azure cloud infrastructure classification:

1. Allow Traffic: Standard network flow permitted for Microsoft Azure cloud services

2. Monitor for Anomalies: Given the DNSBL listing, monitor for unexpected traffic patterns

3. No Block Required: IP does not meet criteria for blocking based on current risk profile

## Summary

IP 20.203.135.57 represents a low-risk Microsoft Azure cloud infrastructure address with standard cloud compute characteristics. The IP shows no evidence of malicious activity and maintains a clean threat profile. The single DNSBL listing warrants routine monitoring but does not indicate active malicious use. No defensive blocking actions recommended.

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