186.155.72.137📋 Copy

# INTELLIGENCE BRIEFING: 186.155.72.137/32

Classification: LOW RISK / CLEAN

Date of Analysis: Current

Authority: IPDebrief Threat Intelligence Platform

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## EXECUTIVE SUMMARY

IP 186.155.72.137 is classified as LOW RISK with no observed threat indicators. The address is associated with ETB (Colombia) under ASN 19429 and belongs to the 186.155.0.0/16 CIDR block registered with LACNIC. No active services, open ports, or malicious activity detected.

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## OWNERSHIP & INFRASTRUCTURE

• Organization: ETB - Colombia (ISP)
• ASN: 19429
• CIDR Block: 186.155.0.0/16
• RIR: LACNIC
• Geolocation: Bogota D.C., Colombia (CO)
• Abuse Contact: Available via RDAP (seguridad@etb.net.co)
• Network Role: Firewalled / No Services Active
• IP Classification: Dynamic Residential ISP Address

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## THREAT INDICATORS

• Risk Score: 0/100
• Abuse Confidence Score: Not applicable
• Blacklist Count: 0
• Known Attacker: No
• Spam Source: No
• Tor Exit Node: No
• Campaign Correlation: 0 correlated IPs
• Threat Persistence: 0 days observed
• Persistently Malicious: False

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## NETWORK SIGNALS

• Open Ports: None detected
• TLS Certificate: Not present
• HTTP Services: None active
• DNS Resolution: dynamic-186-155-72-137.dynamic.etb.net.co (forward confirmed)
• PTR Record: Present and consistent
• Service Purpose: Firewalled / No Services

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## NEIGHBORHOOD ANALYSIS (186.155.72.0/24)

• Abuse Density: 0%
• Classification: Clean
• Active Siblings: 0
• Threat Siblings: 0
• Total Siblings Analyzed: 1
• Risk Distribution: High: 0, Medium: 0, Low: 0

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## RELATIONSHIP GRAPH

• DNS Associations: dynamic-186-155-72-137.dynamic.etb.net.co
• Network Associations: 186.155.0.0 - 186.155.255.255
• Total Relationships: 5 (all DNS and network-level)
• Certificate Matches: 0

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## OBSERVATION HISTORY

• Total Observations: 16 signals tracked
• Recent Activity: Most recent observations from 2026-07-26
• Ownership Changes: 0
• Threat Observation Count: 0
• Signal Types Captured: Ownership, Geolocation, RIR, Network Classification
• Signal Confidence: 0.30–0.95 (varies by type)
• Persistent Malicious Activity: None detected

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## SECURITY ACTIONS & RECOMMENDATIONS

No defensive actions recommended. The IP presents no observed threat characteristics and is classified as clean within its subnet. Standard ISP traffic handling procedures apply.

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## INTELLIGENCE NOTES

1. Dynamic Residential IP: The hostname pattern (dynamic-186-155-72-137.dynamic.etb.net.co) indicates this is a dynamic-assigned residential or enterprise ISP address, not a static infrastructure endpoint.

2. Clean Neighborhood: The /24 subnet shows zero abuse density with no threat siblings, supporting the low-risk classification.

3. No Active Services: The absence of open ports and active services suggests this IP is either unassigned, firewalled, or in standby status.

4. ISP Attribution: ETB is a legitimate Colombian internet service provider with proper RIR registration. No spoofing or hijacking indicators present.

5. Control Plane: BGP routing stable, origin ASN 19429 consistent, no MOAS or route flapping detected.

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END OF BRIEFING

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