171.231.178.39📋 Copy

# INTELLIGENCE BRIEFING: IP Address 171.231.178.39/32

Classification: LOW RISK

Report Date: 2026-07-28

Analyst: IPDebrief Intelligence Team

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## EXECUTIVE SUMMARY

Target IP 171.231.178.39 presents a low-risk profile with no active threat indicators. The address is associated with Viettel telecommunications infrastructure in Da Nang, Vietnam. No malicious campaigns, blacklists, or persistent threat behaviors observed. Recommended action: Allow traffic with standard monitoring.

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## OWNERSHIP & INFRASTRUCTURE

The IP belongs to Viettel's network infrastructure. Network classification indicates no open services detected, consistent with residential or business-class connectivity rather than public-facing hosting.

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## THREAT ASSESSMENT

Key Findings:

• Zero threat indicators across all monitoring sources
• No association with known malicious campaigns
• Clean reputation across 17 observation signals
• No persistent malicious behavior detected

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## NETWORK NEIGHBORHOOD ANALYSIS

Subnet: 171.231.178.0/24

Total Siblings: 9

Abuse Density: 0 (0.0%)

Neighbor Risk Distribution:

• High Risk: 0
• Medium Risk: 1 (171.231.178.49)
• Low Risk: 8

Notable Neighbors:

The /24 subnet exhibits low abuse density with only one medium-risk neighbor. No threat siblings identified.

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## OBSERVATION HISTORY

Total Observations: 17 signals (as of 2026-07-28)

Recent Signal Summary:

• Subnet Classification: Clean (abuse density: 0)
• Ownership Changes: 0
• Geolocation: Vietnam (confidence: 52%)
• DNS Resolution: viettel.vn (domain association confirmed)
• Threat Persistence: Not observed

Temporal analysis indicates stable ownership with no signs of malicious persistence or reputation degradation.

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## RELATIONSHIP ANALYSIS

Associated Entities: 4 relationships identified

1. Network Association: VIETTEL-VN (Same Network)

2. DNS Association: dynamic-ip-adsl.viettel.vn (PTR hostname)

No external organization, certificate, or hostname relationships beyond Viettel infrastructure.

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## SERVICES & DNS

Forward DNS resolution confirmed to viettel.vn domain. No reverse DNS validation available.

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## CONTROL PLANE DATA

• BGP Prefix: 171.231.176.0/21
• Route Stability: Unstable
• DNSSEC: Valid
• DNSBL Listings: 0 of 8 total lists
• Hop Count: 22 hops to destination
• Transit Networks: Comcast, Cogent

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## RECOMMENDED ACTIONS

Firewall Rules: None required

Monitoring Level: Standard

Threat Response: Not applicable

This IP address does not warrant restrictive firewall rules based on current risk assessment. Standard logging and monitoring is sufficient.

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## ANALYST NOTES

Target IP 171.231.178.39 represents normal Viettel residential/business connectivity infrastructure. The absence of open services, clean threat profile, and low-risk neighborhood context indicate legitimate operational use. No escalation or blocking actions recommended.

Confidence Level: High

Next Review: Periodic monitoring sufficient

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