# 171.231.199.113 — IP Intelligence Summary 171.231.199.113 is an IPv4 address operated by IRT-VNNIC-AP (AS7552), geolocated to Da Nang, Vietnam. Its reverse DNS name is dynamic-ip-adsl.viettel.vn. As of October 11, 2026, IPDebrief rates it Low Risk (25/100); no anonymizing service was detected. - Canonical page: https://ipdebrief.com/171.231.199.113 - Last updated: 2026-10-11 ## Ownership - Organization: IRT-VNNIC-AP - Network name: VIETTEL-VN - Allocated block: 171.224.0.0/11 - ASN: AS7552 (https://ipdebrief.com/asn/7552) - Regional registry: APNIC ## Location - City: Da Nang - Region: Da Nang - Country: Vietnam - Time zone: Asia/Ho_Chi_Minh ## Network classification - Infrastructure type: — - Datacenter / hosting: no - Residential: no - Mobile: no - Anycast: no - Tor exit node: no - VPN: no - Proxy: no ## Risk assessment - Assessment: Low Risk (25/100) - Blocklist listings: 0 - Suspicious activity indicators: no - Spam source: no ## Reverse DNS - dynamic-ip-adsl.viettel.vn - Forward-confirmed: no ## Analyst narrative \# Intelligence Briefing: IP 171.231.199.113/32 **Classification:** Low Risk - Residential/ISP Infrastructure \--- \## Executive Summary IP address 171.231.199.113 is classified as Low Risk (risk score: 25/100) with current operational status showing no active threat indicators. The IP is associated with Vietnam's Viettel infrastructure under APNIC RIR jurisdiction. Current network role indicates firewalled status with no publicly accessible services. No known malicious campaigns, blacklist listings, or attacker associations detected. \--- \## Profile Assessment **Risk Metrics:** \- Overall Risk Score: 25 (Low Risk) \- Provider Score: 0 \- Authority Score: 0 \- Threat Indicators: None \- Blacklist Count: 0 \- DNSBL Listings: 1 of 8 total **Geolocation Data:** \- Current Geolocation: US-IL, Chicago (US) \- DNS PTR Resolution: dynamic-ip-adsl.viettel.vn (Vietnam) \- GeoPlausible: false (location discrepancy noted) \- Timezone: America/Chicago **Network Classification:** \- ASN: 7552 (Comcast) \- Origin Prefix: 171.231.192.0/21 \- Route Stability: false \- BGP Prefix Origin: 171.231.192.0/21 \- Network Role: Firewalled / No Services **DNS Configuration:** \- PTR Hostnames: dynamic-ip-adsl.viettel.vn \- Forward Resolution: Confirmed to viettel.vn domain \- Email Authentication: SPF and DMARC records present \- Forward Resolution Count: 1 \--- \## Observation History Analysis of 14 historical observations indicates consistent association with Vietnamese telecommunications infrastructure: **Recent Signals (July 2026):** \- RIR Registry: APNIC (Asia-Pacific) \- Organization: IRT-VNNIC-AP (Vietnam Network Information Center) \- CIDR Block: 171.224.0.0/11 (Vietnam) \- Abuse Contact: hm-changed@vnnic.vn \- Network Name: VIETTEL-VN \- Geographic Location: My Dinh, Ha Noi City, Vietnam **Temporal Analysis:** \- Ownership Changes: 0 \- Threat Persistence Days: 0 \- Threat Observation Count: 0 \- Persistently Malicious: false \- No sustained malicious activity detected \--- \## Relationship Graph **Associated Entities:** \- DNS Association: dynamic-ip-adsl.viettel.vn \- Single hostname relationship identified \- No organizational or certificate relationships detected \- No known associated subnets beyond immediate DNS resolution \--- \## Neighborhood Analysis (171.231.199.0/24) **Subnet Characteristics:** \- Total Neighbor IPs: 16 \- Abuse Density: 0% \- Risk Distribution: 0 High, 5 Medium, 11 Low Risk **Notable Neighbors:** \- 171.231.199.119: Risk Score 49 (Medium Risk) \- 171.231.199.134: Risk Score 49 (Medium Risk) \- 171.231.199.200: Risk Score 50 (Higher Risk) \- 171.231.199.211: Risk Score 40 (Medium Risk) \- 171.231.199.219: Risk Score 25 (Low Risk) \- 171.231.199.242: Risk Score 0 (Clean) \- 171.231.199.252: Risk Score 40 (Medium Risk) **Assessment:** The /24 subnet shows mixed risk profiles with no systematic abuse pattern. Subject IP sits within a typical ISP residential subnet with no inherited risk elevation. \--- \## Technical Observations **Services & Ports:** \- Open Ports: None detected \- TLS Certificate: None \- HTTP Title: None \- Server Banner: None \- Classification: Firewalled / No Services **Behavioral Indicators:** \- Honeypot Hits: 0 \- Enumeration Strikes: 0 \- WAF Violations: 0 \- Total Incidents: 0 **Traceroute Characteristics:** \- Hop Count: 29 \- Transit Networks: Comcast, Cogent \- Timed Out Hops: 12 \- First Hop RTT: 0.2ms \- Last Hop RTT: 265ms \--- \## Recommended Actions **Current Status:** No immediate security actions required. **Monitoring Recommendations:** 1. Monitor for DNS resolution changes (current PTR indicates Viettel Vietnam DSL) 2. Track subnet risk distribution changes 3. Watch for any service openings on previously firewalled IP 4. Monitor for blacklist additions (currently clean) **Firewall Rules:** No blocking recommended. IP classified as legitimate ISP residential infrastructure with no active threat indicators. \--- \## Conclusion IP 171.231.199.113 represents typical residential/ISP infrastructure associated with Viettel Vietnam telecommunications. The low risk score, absence of threat indicators, and clean behavioral profile support continued monitoring without intervention. The geolocation discrepancy (US vs Vietnam DNS) warrants periodic verification but does not indicate malicious activity. No security actions recommended at this time. ## Nearby addresses - 171.231.199.4 (https://ipdebrief.com/171.231.199.4) - 171.231.199.23 (https://ipdebrief.com/171.231.199.23) - 171.231.199.35 (https://ipdebrief.com/171.231.199.35) - 171.231.199.56 (https://ipdebrief.com/171.231.199.56) - 171.231.199.78 (https://ipdebrief.com/171.231.199.78) - 171.231.199.119 (https://ipdebrief.com/171.231.199.119) - 171.231.199.129 (https://ipdebrief.com/171.231.199.129) - 171.231.199.130 (https://ipdebrief.com/171.231.199.130) - 171.231.199.134 (https://ipdebrief.com/171.231.199.134) - 171.231.199.147 (https://ipdebrief.com/171.231.199.147) - 171.231.199.155 (https://ipdebrief.com/171.231.199.155) - 171.231.199.183 (https://ipdebrief.com/171.231.199.183) --- Source: IPDebrief, "171.231.199.113 IP intelligence", https://ipdebrief.com/171.231.199.113, updated 2026-10-11. Assessments are probabilistic.