# IP INTELLIGENCE BRIEFING
Subject: 27.16.236.227/32
Date: Analysis completed
Classification: LOW RISK
Data Source: IPDebrief Intelligence Platform
---
## EXECUTIVE SUMMARY
IP 27.16.236.227 is classified as Low Risk with an overall risk score of 0. The address belongs to CHINANET-HB under ASN 137266 and is geolocated to China (CN). No active threat indicators, blacklisting, or malicious activity have been detected. The IP appears to be firewalled with no open services.
---
## NETWORK OWNERSHIP & GEOLOCATION
| Attribute | Value |
|---|---|
| **IP Address** | 27.16.236.227/32 |
| **ASN** | 137266 |
| **Organization** | Zhengding Cai |
| **Netname** | CHINANET-HB |
| **Country** | China (CN) |
| **RIR** | APNIC |
| **CIDR Block** | 27.16.0.0/12 |
| **Geo Source Consensus** | True |
| **Accuracy Radius** | 2500 km |
---
## THREAT ASSESSMENT
Current Risk Profile:
- Risk Score: 0 (Low Risk)
- Provider Score: 0
- Authority Score: 0
- Abuse Confidence Score: Not applicable
- Blacklist Count: 0
- Known Campaigns: None detected
Threat Indicators:
- No known attacker status
- No Tor exit node activity
- No spam source activity
- No known campaign associations
- Zero threat observations in history
---
## SERVICE & NETWORK ROLE ANALYSIS
Network Classification:
- Service Purpose: Firewalled / No Services
- Open Ports: None detected
- TLS Certificate: None
- HTTP Banner: None
- Cloud Provider: No
- CDN: No
- VPN/Proxy/Tor: No
- Hosting/Residential: No
- Mobile: No
- Bogon: No
- Anycast: No
DNS Configuration:
- Forward Resolution: False
- PTR Hostnames: None
- Hosted Domains: 0
- SPF/DMARC: Not configured
- DNSBL Listings: 0/8
---
## OBSERVATION HISTORY
Temporal Analysis (14 observations):
- Latest Activity: 2026-07-24
- Ownership Changes: 0 (stable ownership)
- Threat Persistence Days: 0
- Total Threat Observations: 0
- Is Persistently Malicious: False
Recent Signals:
- Geographic location inference: China (35.86°N, 104.2°E)
- Ownership resolution: Zhengding Cai / anti-spam@chinatelecom.cn
- ICMP validation: Blocked (unable to validate geolocation)
- TTL and RTT metrics: Not available (ICMP blocked)
---
## NEIGHBORHOOD ANALYSIS
Subnet: 27.16.236.227/24
- Neighbor Count: 0
- Abuse Density: 0%
- High/Medium/Low Risk Neighbors: 0/0/0
- Active Siblings: 0
- Threat Siblings: 0
No neighboring IPs detected in the /24 subnet, indicating isolated address assignment.
---
## RELATIONSHIP GRAPH
| Relationship Type | Target |
|---|---|
| Same Network | CHINANET-HB |
| Same Network | CHINANET-HB |
Two identical network-level relationships identified, both linking to CHINANET-HB infrastructure.
---
## RECOMMENDED ACTIONS
Security Actions:
- No firewall rules or security recommendations generated
- Risk score of 0 indicates low threat profile
- No blocking required based on current intelligence
Monitoring Recommendations:
- Monitor for any changes in service status or threat indicators
- No immediate action required
---
## CONCLUSION
IP 27.16.236.227 presents no threat to defensive security operations. The address is registered to a Chinese telecommunications provider (CHINANET-HB) with stable ownership and no malicious activity. The IP is currently firewalled with no open services, and neighborhood analysis shows no adjacent abuse activity. SOC analysts may treat this address as benign, though standard monitoring practices should continue to track for any behavioral changes.
---
Report Generated: IPDebrief Intelligence Platform
Data Confidence: High (multiple signal sources corroborated)
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Zhengding Cai |
| ASN | AS137266 |
| Network Name | CHINANET-HB |
| CIDR Block | 27.16.0.0/12 |
| 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 | 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 | |||
| 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 | AS137266 |
| Network Prefix | 27.16.236.0/22 |
| 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 | 2026-07-07 12:35:31 UTC |
| Last Seen | 2026-08-26 22:17:55 UTC |
| Profile Built | 2026-08-29 07:18:46 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 23 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 27.16.236.227
Who owns the IP address 27.16.236.227?
27.16.236.227 is registered to Zhengding Cai. The address falls within the 27.16.0.0/12 network block. Registration is held at APNIC.
Where is 27.16.236.227 located?
Geolocation data places 27.16.236.227 in China. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 27.16.236.227 malicious or safe?
27.16.236.227 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.