45.155.141.143📋 Copy

# IP Intelligence Briefing: 45.155.141.143

Classification: LOW RISK — Clean Infrastructure

Date: 2026-07-22

Analyst: IPDebrief Intelligence Team

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## Executive Summary

IP 45.155.141.143 is classified as a low-risk infrastructure endpoint belonging to Greenfiber NOC (ASN 213281). Comprehensive analysis reveals no malicious indicators, with a risk score of 0 and clean subnet classification. No defensive firewall rules are recommended.

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## Ownership & Infrastructure Profile

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## Threat Assessment

Threat Indicators: None identified. No known campaigns, threat feeds, or malicious behavior patterns.

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## Neighborhood Analysis (45.155.141.0/24)

• Abuse Density: 0%
• Total Siblings: 5
• Active Siblings: 2
• Threat Siblings: 0
• Risk Distribution: 4 Low-risk neighbors, 0 medium/high-risk

Neighbor Risk Scores:

• 45.155.141.2: Risk 0
• 45.155.141.61: Risk 25
• 45.155.141.81: Risk 0
• 45.155.141.216: Risk 25

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## Observation History

Analysis of 16 historical observations confirms consistent benign classification:

• Subnet Classification: Clean (abuse density 0)
• Ownership Changes: 0
• Threat Persistence: 0 days
• Threat Observation Count: 0
• Persistently Malicious: No

Recent geolocation signals indicate consistent assignment to Cologne, DE region with multi-signal inference confidence.

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## Relationships

• Network Associations: GF-FRA-CGN-POOL1-SUBSCRIBER (4 instances)
• DNS Associations: cgn-45-155-141-143.ip-pool.greenfiber.de (4 instances)
• No external malicious entity associations detected

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## Recommended Actions

Firewall Rules: None required

Recommendations: No defensive blocking recommended. IP is classified as legitimate business infrastructure with clean reputation and no observed malicious activity.

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## Intelligence Narrative

IP 45.155.141.143 operates as a subscriber endpoint within Greenfiber's German infrastructure pool (GF-FRA-CGN-POOL1-SUBSCRIBER). The subnet demonstrates zero abuse density with a clean classification across all observed intervals. No open services were detected, indicating the IP is not actively hosting accessible services—consistent with a firewalled subscriber endpoint. Historical data confirms stable ownership and no emergence of malicious behavior patterns. The surrounding /24 subnet shows minimal risk characteristics with only two neighbors exhibiting minor risk scores (25).

Conclusion: This IP represents legitimate telecommunications infrastructure. No threat mitigation required. Monitor for any change in risk classification or emergence of open services.

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