221.203.143.37
IP Intelligence Briefing: 221.203.143.37
Date: 2026-06-13
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**1. Risk Profile**
- Overall Risk Score: 0 (Low Risk)
- Provider Score: 0
- Authority Score: 0
- Stability Score: 0
- Threat Indicators: No malicious activity detected (no malware, phishing, or C2 signatures).
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**2. Ownership & Network**
- Organization: Guangyu Zhan (UNICOM-LN)
- ASN: Not directly assigned; linked to UNICOM-LN (AS4837).
- Geolocation:
- Country: China (CN)
- Region: Dadong District, Shenyang
- Coordinates: 34.77°N, 113.72°E
- Timezone: Asia/Shanghai
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**3. Threat & Behavioral Data**
- Threat Feeds: No entries in known threat databases.
- DNS:
- No reverse DNS (PTR) records.
- DNSSEC validation confirmed.
- Services:
- No open ports or TLS certificates detected.
- No HTTP server banners or HTTP title.
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**4. Network Relationships**
- Shared Network: UNICOM-LN (AS4837)
- Subnet: 221.203.143.37/24
- Neighbors:
- 221.203.143.191 (Risk Score: 0, Authority Score: 50).
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**5. Historical Observations**
- Recent Activity (Last 30 Days):
- 11 observations, primarily DNS and network prefix records.
- No persistent threats or anomalous behavior.
- Minimal risk score (0) across all signals.
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**6. Recommendations**
- Monitoring: Track network activity for changes in behavior or new threats.
- Neighbor Analysis: Monitor 221.203.143.191 for potential correlation.
- Provider Collaboration: Engage with UNICOM-LN for network security best practices.
Conclusion: This IP is currently low risk with no direct malicious indicators. Focus on network-level monitoring and ensure alignment with the provider’s security protocols.
Source: IPDebrief Intelligence Platform
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Guangyu Zhan |
| ASN | AS4837 |
| Network Name | UNICOM-LN |
| CIDR Block | 221.200.0.0/14 |
| RIR | APNIC |
| Country | CN |
| 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 | 0% | 0 | 0 |
| routing | 0% | 0 | 0 |
| services | 0% | 0 | 0 |
| ownership | 27% | 2 | 3 |
| reputation | 0% | 0 | 0 |
| geolocation | 13% | 1 | 1 |
| Overall | 6% | 3 | 4 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-06-04 18:51:53 UTC |
| Last Seen | 2026-06-13 02:53:01 UTC |
| Profile Built | 2026-06-13 03:03:22 UTC |
| Data Freshness | Live |
| Signal Types | 16 |
| Total Observations | 16 |
Full dossier details are available via our API.