171.231.193.177📋 Copy

# IP Intelligence Briefing: 171.231.193.177/32

Date: [Current Date]

Classification: Defensive Intelligence

Threat Level: Low Risk

## Executive Summary

IP address 171.231.193.177 is classified as a low-risk residential subscriber IP assigned by Viettel ISP (Vietnam). The IP demonstrates no active threat indicators, no open services, and operates within a clean subnet environment with zero abuse density. Historical analysis confirms consistent benign classification with no escalation in threat posture.

## Ownership and Registration

• Organization: IRT-VNNIC-AP / Viettel-VN
• ASN: 7552 (APNIC)
• CIDR Block: 171.224.0.0/11
• Network Name: VIETTEL-VN
• Registration Authority: APNIC
• Abuse Contact: Available via RDAP

The IP is part of a large residential ISP block operated by Viettel, Vietnam's primary telecommunications provider.

## Geolocation and Network Classification

• Primary Location: Vietnam (Viettel ISP allocation)
• DNS PTR Hostname: dynamic-ip-adsl.viettel.vn
• Forward Resolution: dynamic-ip-adsl.viettel.vn
• Network Type: Residential ISP subscriber
• Classification: Clean / Low Risk
• Cloud/CDN/Proxy Status: None detected

DNS records confirm this is a dynamic ISP-assigned address with proper SPF and DMARC email authentication configured for the viettel.vn domain.

## Threat Assessment

No threat indicators, campaigns, or malicious activity detected. The IP is not listed on any threat feeds or DNS blacklists.

## Network Behavior Analysis

• Open Ports: None detected
• Service Banner: None (firewalled/no services)
• TLS Certificate: None
• HTTP Title: None
• Server Banner: None

The IP shows no active services or open ports, indicating it is a passive residential endpoint rather than a compromised or malicious system.

## Neighborhood Analysis (171.231.193.0/24)

• Total Subnet Siblings: 14
• Active Siblings: 10
• Abuse Density: 0 (Clean)
• Risk Distribution: 0 High, 4 Medium, 9 Low
• Threat Siblings: 0

The /24 subnet demonstrates minimal abuse activity. Neighbor analysis shows a risk distribution skewed toward low-risk residential IPs (57% low risk, 31% medium risk, 0% high risk), consistent with typical ISP subscriber behavior.

## Historical Observations

Analysis of 16 historical observations reveals consistent benign characteristics:

• Network Classification: Persistent classification as non-CDN, non-Tor, non-VPN, non-proxy, non-residential hosting
• Threat Persistence: Zero days of observed malicious behavior
• Ownership Stability: No ownership changes detected
• Subnet Classification: Consistently marked as "clean" with inherited risk of 0

The IP has demonstrated stable, benign behavior with no escalation in threat posture over the observation period.

## Related Entities

• DNS Hostnames: dynamic-ip-adsl.viettel.vn (multiple associations)
• Network Association: VIETTEL-VN network (same network relationships)
• Control Plane: Stable BGP routing with 29 hop traceroute through Comcast and Cogent transit networks

## Recommended Actions

No immediate action required. This IP represents normal residential ISP behavior with no malicious indicators.

Defensive Considerations:

• Monitor for any behavioral changes if this IP begins showing unusual connection patterns
• The clean neighborhood profile supports continued monitoring without blocking
• Email reputation checks confirm proper SPF/DMARC configuration for the associated domain

## Intelligence Confidence

High – Multiple data sources confirm benign classification:

• Zero threat indicators across all feeds
• Clean subnet abuse density
• Consistent historical behavior
• Standard ISP residential characteristics

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*Report generated by IPDebrief Intelligence Platform. All data sourced from live intelligence feeds and historical observations.*

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