221.202.158.252
IP Intelligence Briefing: 221.202.158.252
Date: 2026-06-18
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**1. Core Profile**
- Risk Assessment:
- Overall Risk Score: 0 (Low Risk)
- Threat Indicators: No malicious activity, spam, or known attacker associations.
- Ownership: Owned by Guangyu Zhan (China Unicom, ASN 4837).
- Geolocation: Beijing, China (mobile carrier: China Unicom, LTE/5G).
- Network Role:
- Mobile device (not residential, cloud, or CDN).
- BGP prefix: 221.200.0.0/14 (China Unicom backbone).
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**2. Observation History**
- Recent Activity (Last 30 Days):
- DNSSEC & CAA: Validated (no issues).
- Geolocation: Consistent with Beijing, China.
- Threat Signals: No abuse reports, blacklists, or spam activity.
- Stability: Route stability score: 0.2174 (Minimal risk).
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**3. Relationships**
- Network Connections:
- Linked to UNICOM-LN (China Unicom network).
- No known ties to other malicious entities or subnets.
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**4. Neighborhood Analysis**
- Subnet: 221.202.158.252/24.
- Abuse Density: 0% (clean subnet).
- Neighbors: No active or abusive sibling IPs detected.
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**5. Recommendations**
- Monitoring: No immediate action required.
- Context: The IP is associated with a mobile carrier and shows no signs of compromise.
- Next Steps: Reassess if network behavior changes or new threats emerge.
SOC Note: This IP is part of a legitimate mobile network with no current indicators of compromise. No firewall rules or mitigation actions are recommended at this time.
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*Generated via IPDebrief threat 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 | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
☁️ 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 | 26% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 11% | 1 | 2 |
| ownership | 24% | 2 | 3 |
| reputation | 21% | 1 | 3 |
| geolocation | 21% | 2 | 2 |
| Overall | 19% | 9 | 14 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:13 UTC |
| Last Seen | 2026-06-23 08:46:21 UTC |
| Profile Built | 2026-06-23 08:47:58 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 21 |
Full dossier details are available via our API.