39.77.11.41
## IP Intelligence Briefing: 39.77.11.41
Date: 2026-07-27
Classification: Low Risk
Risk Score: 25/100
---
**Ownership & Registration**
- Organization: ChinaUnicom Hostmaster (UNICOM-SD)
- ASN: 4837
- CIDR Block: 39.64.0.0/11
- RIR: APNIC
- Abuse Contact: Available via RDAP
**Geolocation**
- Country: China (CN)
- Coordinates: 35.86°N, 104.20°E
- Location Accuracy: 2,500 km radius
- Connection Type: Mobile (China Unicom, LTE/5G)
**Threat Assessment**
- Reputation: Low Risk
- Abuse Confidence: None
- Blacklist Count: 0
- Known Attacker: No
- Tor Exit Node: No
- Spam Source: No
**Network Characteristics**
- Services: No open ports detected (firewalled/no services)
- DNS: No forward resolution, no PTR records
- Mobile Carrier: China Unicom (MCC: 460, MNC: 01)
- Network Classification: Mobile/residential connection type
**Subnet Analysis (39.77.11.41/24)**
- Abuse Density: 0 (Clean)
- Threat Siblings: 0
- Active Siblings: 0
- Classification: Clean
**Observation History**
- Total Observations: 14
- Ownership Stability: Stable (0 ownership changes)
- Threat Persistence: 0 days
- Last Activity: 2026-07-27 12:07:47 UTC
- Signals: Geolocation, ownership, subnet, and classification data consistently observed
**Relationships**
- Associated Network: UNICOM-SD (China Unicom)
- Related Entities: 2 network-level relationships identified
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**Recommended Security Actions**
No immediate action required. The IP presents a low-risk profile with:
- No threat indicators or blacklist entries
- Clean neighborhood classification
- Stable ownership history
- Mobile connection profile (common for consumer/ISP traffic)
Suggested Approach: Monitor passively. No firewall rules or blocking recommended at this time.
---
**Intelligence Summary**
IP 39.77.11.41 is a mobile-originated connection from China Unicom's infrastructure in China. The address shows no malicious indicators, maintains stable ownership within the UNICOM-SD network, and operates in a clean subnet environment. The absence of open ports suggests the endpoint is either properly secured or a mobile device with no exposed services. Historical data indicates no persistent malicious activity. Continue passive monitoring unless additional threat signals emerge.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | ChinaUnicom Hostmaster |
| ASN | AS4837 |
| Network Name | UNICOM-SD |
| CIDR Block | 39.64.0.0/11 |
| 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 | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS4837 |
| Network Prefix | 39.64.0.0/11 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 0% | 0 | 0 |
| Overall | 12% | 3 | 3 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-13 21:32:34 UTC |
| Last Seen | 2026-09-03 02:35:57 UTC |
| Profile Built | 2026-09-03 02:42:13 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 23 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 39.77.11.41
Who owns the IP address 39.77.11.41?
39.77.11.41 is registered to ChinaUnicom Hostmaster. The address falls within the 39.64.0.0/11 network block. Registration is held at APNIC.
Where is 39.77.11.41 located?
Geolocation data places 39.77.11.41 in China. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 39.77.11.41 malicious or safe?
39.77.11.41 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
Is 39.77.11.41 a VPN, proxy, or data center address?
39.77.11.41 is classified as a mobile network based on network ownership and behavioural analysis.