121.131.218.157
IP Intelligence Dossier
Your IP: 216.73.216.123
🤖 Witness AIThis summary was generated by AI and may contain inaccuracies. Verify critical details independently.
IP Intelligence Briefing: 121.131.218.157
Date: 2026-06-17
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**Risk Assessment**
- Overall Risk Score: 25 (Low Risk)
- Threat Indicators: No malicious activity detected (no malware, phishing, or exploit campaigns).
- Network Classification: Single-Service Host (SSH service observed).
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**Ownership & Geolocation**
- ISP: Korea Telecom (KT Corporation), South Korea (KR).
- Location: Seoul, South Korea (latitude 35.91, longitude 127.77).
- Mobile Carrier: KT (LTE/5G).
- ASN: 4766 (KIXS-AS-KR-KR).
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**Observation History**
- Latest Activity: June 17, 2026 (SSH service detected, no DNS anomalies).
- Historical Trends: Minimal observed activity; no persistent threats or abuse patterns.
- Subnet Abuse Density: 1/100 (mostly clean).
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**Relationships**
- Linked Networks: Multiple connections to "KORNET-KR" (likely KT infrastructure).
- No Malicious Associations: No known attackers, spam sources, or Tor nodes.
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**Neighborhood Analysis**
- Subnet: 121.131.218.157/24.
- Neighbor Risk: 0/100 (no risky siblings or abuse density).
- Active Siblings: 1 (itself).
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**Service & Technical Profile**
- Open Ports: SSH (port 22, OpenSSH 7.9).
- DNS: No PTR records or domain associations.
- TLS/HTTP: No certificates or web server banners detected.
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**Recommendations**
- Monitoring: Low-risk, but monitor SSH activity due to mobile carrier (KT) and potential for service-specific threats.
- Firewall: No immediate action required; no malicious indicators or high-risk neighbors.
Conclusion: This IP is associated with a legitimate mobile carrier and exhibits no malicious behavior. No actionable threats detected. Continue routine monitoring for anomalies.
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*Generated by 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 | Single-Service Host |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 22 | ssh | tcp | |
| Closed Ports | 25, 80, 443, 3389, 8080, 8443 (1 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
| SSH Version | SSH-2.0-OpenSSH_7.9p1 Raspbian-10+deb10u2 |
🔐 TLS Certificate
No certificate
Issued by —
N/A
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 26% | 2 | 4 |
| routing | 21% | 1 | 2 |
| services | 15% | 2 | 2 |
| ownership | 20% | 2 | 3 |
| reputation | 23% | 1 | 3 |
| geolocation | 21% | 2 | 2 |
| Overall | 21% | 10 | 16 |
Coverage: 6/6 dimensions · Data sufficiency: sufficient
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:03:35 UTC |
| Last Seen | 2026-06-22 11:41:03 UTC |
| Profile Built | 2026-06-22 11:58:57 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 24 |
🔍 19 signal types · 24 observations collected
This report is generated from 19+ independent intelligence signals including
ownership records, DNS analysis, BGP routing, TLS certificates, port scanning, threat feeds,
behavioral fingerprinting, and more.
Full dossier details are available via our API.
Full dossier details are available via our API.
ℹ️ About This Report
All data shown is publicly available network metadata — IP addresses do not reliably identify individuals.
Assessments are probabilistic and should not be used as sole basis for access control decisions.
To report an issue or request data review, contact admin@ipdebrief.com.