121.167.89.157
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: 121.167.89.157
Date: 2026-06-17
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**1. Core Risk Profile**
- Risk Score: 80 (High Risk)
- Provider: Korea Telecom (ASN 4766)
- Geolocation: South Korea (Hwaseong-si, 35.91°N, 127.77°E)
- Network Role: Mobile LTE/5G device (KT Corporation)
- Threat Indicators: No direct malicious activity detected; no known campaigns or spam sources.
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**2. Observations & History**
- DNSBL Listings: Flagged in 6/8 DNSBLs (likely low-severity false positives).
- BGP Data: Registered under Korea Telecom’s ASN 4766 (prefix 121.160.0.0/11).
- Operator Score: Minimal risk (0.1304).
- Temporal Trends: No persistent malicious activity; recent observations show stable routing.
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**3. Network Relationships**
- Subnet: 121.167.89.0/24 (clean, abuse density 0%).
- Linked Entities:
- Same network (KORNET-KR) via Korea Telecom.
- No direct ties to known malicious subnets or organizations.
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**4. Security Posture**
- Open Ports: SSH (port 22, TCP).
- Services: No TLS certificates or HTTP banners detected.
- DNS: No PTR records or domain associations.
- Mobile Carrier: KT Corporation (MCC 450, MNC 08).
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**5. Recommendations**
- Monitor SSH Activity: Given the open SSH port, inspect for brute-force attempts or unauthorized access.
- Check DNSBL Context: Investigate why the IP is listed in DNSBLs (e.g., accidental inclusion or low-severity threats).
- Network Segmentation: Ensure mobile devices are isolated from critical assets.
- Verify Carrier Compliance: Confirm KT’s policies for mobile IP usage and potential spoofing risks.
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Conclusion:
The IP is a legitimate mobile LTE/5G device under Korea Telecom, with no direct malicious activity. However, its high risk score and DNSBL listings warrant closer monitoring. Focus on SSH security and verify the carrier’s compliance practices. No immediate mitigation is required, but continued observation is advised.
Source: IPDebrief 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 | — |
🔐 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 | 35% | 2 | 3 |
| routing | 25% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 15% | 1 | 2 |
| geolocation | 32% | 2 | 3 |
| Overall | 25% | 10 | 14 |
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 | 2026-06-26 18:10:32 UTC |
| Profile Built | 2026-06-22 12:04:29 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 28 |
🔍 19 signal types · 28 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.