171.231.198.67
171.231.198.67 is an IPv4 address operated by IRT-VNNIC-AP (AS7552), geolocated to Da Nang, Vietnam. Its reverse DNS name is dynamic-adsl.viettel.vn. As of October 4, 2026, IPDebrief rates it Low Risk (25/100); no anonymizing service was detected.
# IP Intelligence Briefing: 171.231.198.67/32
## Executive Summary
IP 171.231.198.67 is a Viettel Vietnam residential infrastructure IP with a Low Risk reputation score of 25. The address is classified as a firewalled endpoint with no active services detected. No threat indicators, malware signatures, or campaign correlations identified.
## Ownership & Infrastructure
- Organization: IRT-VNNIC-AP (Vietnam Internet Resource Management)
- Network Name: VIETTEL-VN
- ASN: 7552 (VN7552-AP)
- CIDR Block: 171.224.0.0/11
- RIR: APNIC (Asia Pacific)
- Registration: APNIC RIR registry
## Geolocation
- Country: Vietnam (VN)
- City/Region: Da Nang
- Coordinates: 16.07°N, 108.22°E
- Timezone: Asia/Ho_Chi_Minh
- GeoValidation: Multiple signal sources confirm Vietnam origin
## Network Classification
- Infrastructure Type: Residential/Enterprise DSL
- Service Status: Firewalled / No Services
- CDN/Proxy/VPN: No
- Tor Exit Node: No
- Bogon/Anycast: No
- Mobile Carrier: No
## DNS Intelligence
- PTR Record: dynamic-adsl.viettel.vn
- Forward Resolution: dynamic-adsl.viettel.vn (unconfirmed)
- Email Authentication: SPF enabled, DMARC enabled
- Hosted Domains: None (0)
## Threat Profile
- Risk Score: 25 (Low Risk)
- Abuse Confidence: Not flagged
- Blacklist Count: 0 (0/8 DNSBL lists)
- Threat Indicators: None detected
- Known Campaigns: None
- Historical Observations: 15 signals over monitoring period
- Threat Persistence: 0 days (not persistently malicious)
## Subnet Analysis (171.231.198.0/24)
- Total Siblings: 12
- Abuse Density: 0%
- Risk Distribution: High (0), Medium (2), Low (9)
- Notable Neighbors:
- 171.231.198.171: Risk 45 (Medium)
- 171.231.198.233: Risk 40 (Medium)
- Remaining 9 IPs: Risk 0-25 (Low)
## Relationships
- Network Association: VIETTEL-VN (Same Network)
- DNS Associations: dynamic-adsl.viettel.vn (3 associations)
## Control Plane Status
- BGP Prefix: 171.231.192.0/21
- Route Stability: Unstable (isRouteStable: false)
- RPKI State: Not validated
- Route Changes (30d): 0
## Security Recommendations
No immediate blocking recommended. The IP presents minimal threat indicators:
- Low risk score (25)
- No malware, spam, or attack signatures
- Standard Viettel residential infrastructure
- SPF/DMARC properly configured for email
Monitor for: Any changes in threat indicators, service enumeration, or behavioral anomalies. The subnet shows minimal abuse density with only 2 medium-risk neighbors out of 12.
Action Priority: LOW — Standard residential/business IP from major Vietnamese telco with no malicious indicators.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | IRT-VNNIC-AP |
| ASN | AS7552 |
| Network Name | VIETTEL-VN |
| CIDR Block | 171.224.0.0/11 |
| RIR | APNIC |
| Country | VN |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | dynamic-adsl.viettel.vn |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | dynamic-ip-adsl.viettel.vndynamic-adsl.viettel.vn |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | 2/2 domains |
| DMARC | 2/2 domains |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 2 domains |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS7552 |
| Network Prefix | 171.231.192.0/21 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 0% | 0 | 0 |
| Overall | 12% | 3 | 3 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-10 01:48:27 UTC |
| Last Seen | 2026-10-04 23:43:10 UTC |
| Profile Built | 2026-10-04 23:43:20 UTC |
| Data Freshness | Live |
| Signal Types | 18 |
| Total Observations | 24 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 171.231.198.67
Who owns the IP address 171.231.198.67?
171.231.198.67 is registered to IRT-VNNIC-AP. The address falls within the 171.224.0.0/11 network block. Registration is held at APNIC.
Where is 171.231.198.67 located?
Geolocation data places 171.231.198.67 in Da Nang, Da Nang, Vietnam. The local time zone is Asia/Ho_Chi_Minh. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 171.231.198.67 malicious or safe?
171.231.198.67 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 171.231.198.67?
The reverse DNS (PTR) record for 171.231.198.67 is dynamic-adsl.viettel.vn. This hostname is not forward-confirmed, so it should be treated as a weak signal.