101.13.6.91
IP Intelligence Briefing: 101.13.6.91
*Generated via IPDebrief Threat Intelligence Platform*
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**1. Core Profile**
- Risk Score: 80/100 (High Risk)
- Ownership:
- ASN: AS24158
- Organization: Johnny Wang (TAIWANMOBILE-NET)
- Geolocation: Taipei, Taiwan (23.5°N, 121°E)
- Threat Indicators:
- Listed in 5/8 DNSBLs (abuse confidence score: 0.2174).
- Observed in 4 threat feeds (pulse count: 4).
- Network Role: Mobile Carrier (carrier-grade infrastructure, no public services).
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**2. Historical Observations (Last 30 Days)**
- Persistent Threat Signals:
- Consistent DNSBL listings (5/8) since May 2026.
- Geolocation confirmed via MaxMind (Taiwan).
- BGP prefix 101.13.4.0/22 linked to TAIWANMOBILE-NET.
- Behavioral Trends:
- No significant changes in risk score or network activity.
- Subnet abuse density remains high (1/1).
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**3. Relationship Graph**
- Linked Entities:
- Same Network: TAIWANMOBILE-NET (AS24158).
- DNS: No public PTR records or domain associations.
- Certificates: No TLS/HTTPS services detected.
- Suspicious Connections:
- No direct links to known C2 servers, CDPs, or malicious campaigns.
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**4. Neighborhood Analysis**
- Subnet: 101.13.6.0/24
- Neighbor Risk:
- 101.13.6.86: Risk score 80 (high risk, same subnet).
- Abuse Density: 1/1 (high risk subnet).
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**5. Recommended Actions**
1. Block/Rate Limit: Implement firewall rules to block 101.13.6.91/24.
2. Monitor Subnet: Track neighboring IPs (e.g., 101.13.6.86) for lateral movement.
3. Verify Ownership: Confirm TAIWANMOBILE-NET’s compliance with carrier-grade security standards.
4. Threat Feed Sync: Ensure DNSBL subscriptions include this IP for real-time blocking.
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Conclusion: This IP is part of a high-risk mobile carrier network in Taiwan, with persistent DNSBL listings and a high abuse density subnet. While no direct malicious activity is observed, the combination of carrier-grade infrastructure and DNSBL associations warrants close monitoring.
*Generated by IPDebrief Threat Intelligence Platform | Copyright © 2026 Jason Alberino.*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Johnny Wang |
| ASN | AS24158 |
| Network Name | TAIWANMOBILE-NET |
| CIDR Block | 101.8.0.0/13 |
| RIR | APNIC |
| Country | TW |
| 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 | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
☁️ 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 | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 19% | 2 | 2 |
| routing | 13% | 1 | 1 |
| services | 13% | 1 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 13% | 1 | 1 |
| Overall | 16% | 8 | 11 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Recent
| First Seen | 2026-05-16 08:55:24 UTC |
| Last Seen | 2026-06-26 08:22:50 UTC |
| Profile Built | 2026-06-25 14:01:32 UTC |
| Data Freshness | Recent |
| Signal Types | 20 |
| Total Observations | 21 |
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