121.189.122.13
IP Intelligence Briefing: 121.189.122.13
Date: 2026-06-17
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**1. Risk Profile**
- Risk Score: 80 (High Risk)
- Threat Indicators: No direct malicious activity detected (no known campaigns, spam, or attacker listings).
- DNSBL Listings: Identified as listed in 5/8 DNSBL feeds (specific lists obscured).
- Network Role: Mobile network (KT Corporation, LTE/5G).
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**2. Geolocation & Ownership**
- Country: South Korea (KR)
- Region: Jeju-do, Jeju City
- ISP: Korea Telecom (ASN 4766, APNIC)
- Mobile Carrier: KT Corporation (MCC 450, MNC 08).
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**3. Network & Subnet Analysis**
- Subnet: 121.189.122.13/24
- Neighboring IPs: No active sibling IPs in the /24 subnet (abuse density: 0).
- BGP Context:
- Prefixes: 121.160.0.0/11, 121.184.0.0/13 (Korea Telecom).
- Route stability: Unstable (route changes in last 30 days).
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**4. Historical Observations**
- Signals:
- 21 observations (last 30 days) focused on BGP and DNSBL data.
- DNSBL listings increased from 0 to 5 in 7 days.
- No persistent malicious activity or geolocation anomalies.
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**5. Relationships**
- Linked Networks: Repeatedly associated with "KORNET-KR" (Korea Telecom).
- No Known Threat Associations: No shared subnets or campaigns with malicious IPs.
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**6. Recommendations**
1. Monitor DNSBL Listings: Investigate the 5 DNSBL feeds (e.g., Spamhaus, TOR exits) for potential false positives.
2. Check Mobile Network Context: KT Corporation’s LTE/5G network may have legitimate traffic, but isolate suspicious behavior.
3. Block DNSBL Sources: Temporarily block IPs from the listed DNSBL feeds to mitigate potential spam or botnet risks.
4. Watch Route Stability: Monitor BGP anomalies for 121.160.0.0/11 and 121.184.0.0/13 prefixes.
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Note: No direct malicious activity detected, but DNSBL listings and route instability warrant further investigation.
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 | 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 | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 30% | 2 | 3 |
| routing | 17% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 27% | 2 | 3 |
| reputation | 24% | 1 | 3 |
| geolocation | 21% | 2 | 2 |
| Overall | 21% | 9 | 13 |
| 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 11:52:24 UTC |
| Data Freshness | Live |
| Signal Types | 15 |
| Total Observations | 17 |
Full dossier details are available via our API.