218.146.255.221
IP Intelligence Briefing: 218.146.255.221/32
Date: 2026-06-18
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**Core Profile**
- Risk Score: 80 (High Risk)
- Geolocation: South Korea (KR), Ulsan, Dong-gu | Latitude: 35.91, Longitude: 127.77
- Network Role: Mobile device (KT Corporation, LTE/5G)
- Ownership: ASN 4766 (IP Manager, APNIC)
- Threat Indicators: No direct malicious activity detected (no malware, phishing, or known attacker associations).
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**Key Observations**
1. Services & Vulnerabilities
- Open ports: SSH (22/tcp) and HTTP (80/tcp).
- SSH banner: `SSH-2.0-OpenSSH_6.0` (legacy version; potential misconfiguration).
- No TLS certificate or HTTP server banner detected.
2. Network Behavior
- Mobile Carrier: KT Corporation (Korea Telecom).
- Subnet: 218.146.255.221/24 (abuse density: 0% per neighbors scan).
- BGP: Prefix 218.144.0.0/13 registered to Korea Telecom (KR).
3. Historical Activity
- Last 30 days: 19 observations (mixed confidence).
- No persistent threats or campaign correlations.
- DNS resolution failures and low-confidence geolocation inferences noted.
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**Threat Context**
- No Malicious Indicators: No DNS-based attacks, spam, or blacklisted activity.
- Mobile Device Risk: High-risk score likely tied to mobile network exposure (KT) and open SSH.
- Neighbor Analysis: Subnet shows no abuse density, suggesting isolated risk.
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**SOC Actionable Insights**
1. Monitor SSH Access: Investigate SSH traffic (port 22) for unauthorized access attempts.
2. Verify Service Necessity: Confirm if HTTP (port 80) is required; consider blocking non-essential ports.
3. Check Mobile Device Compliance: Ensure KT-registered mobile devices adhere to corporate security policies.
4. Monitor for Anomalies: Track DNS resolution failures and low-confidence geolocation events.
Conclusion: This IP represents a high-risk mobile device with no direct malicious activity but warrants monitoring due to open services and network exposure. No immediate mitigation required, but ongoing surveillance is recommended.
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*Generated via IPDebrief threat intelligence platform.*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | IP Manager |
| ASN | AS4766 |
| Network Name | — |
| CIDR Block | — |
| RIR | APNIC |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
🔐 DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Mobile |
| Service Purpose | Multi-Service Host |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 22 | ssh | tcp | — |
| Closed Ports | 25, 443, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 24% | 2 | 4 |
| routing | 17% | 1 | 1 |
| services | 30% | 2 | 3 |
| ownership | 20% | 2 | 3 |
| reputation | 23% | 1 | 3 |
| geolocation | 21% | 2 | 2 |
| Overall | 23% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:12 UTC |
| Last Seen | 2026-06-26 18:11:08 UTC |
| Profile Built | 2026-06-24 06:34:13 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 23 |
Full dossier details are available via our API.