218.76.28.40
## IP Intelligence Briefing: 218.76.28.40
Classification: Low Risk / Legitimate ISP Traffic
Report Date: 2026-07-29
Executive Summary
IP address 218.76.28.40 is classified as Low Risk (Risk Score: 0) with no active threat indicators. The address belongs to CHINANET HUNAN (ASN 4134) and operates on China Telecom's mobile infrastructure. No malicious activity, blacklisting, or campaign associations detected. Recommended disposition: Allow with standard logging.
Ownership and Geolocation
- Organization: CHINANET HUNAN
- ASN: 4134 (CHINANET)
- CIDR Block: 218.76.0.0/18
- Location: Changsha, Hunan Province, China (28.2014°N, 112.9611°E)
- RIR: APNIC
- Registration: APNIC registry
Network Characteristics
- Connection Type: Mobile (China Telecom LTE/5G)
- Service Purpose: Firewalled / No Services
- Open Ports: None detected
- HTTP/TLS: No services exposed
- PTR Records: None
- DNS Resolution: No forward resolution
Threat Assessment
| Indicator | Status |
|---|---|
| Known Attacker | False |
| Spam Source | False |
| Tor Exit Node | False |
| Blacklist Count | 0 |
| Known Campaigns | None |
| Abuse Confidence Score | Not Applicable |
| Reputation Sources | None |
Neighborhood Analysis (218.76.28.0/24)
- Total Siblings: 8 IPs
- Active Siblings: 3
- Threat Siblings: 1
- Abuse Density: 0.125 (12.5%)
- Subnet Classification: Mostly Clean
- Neighbor Risk Distribution: 7 low risk, 0 medium, 0 high
- Notable Neighbors: 218.76.28.104 (Risk: 25), 218.76.28.120 (Risk: 15), 218.76.28.136 (Risk: 0)
Historical Observation (Last 11 Signals)
- Timeline: 2026-07-29
- Geolocation Consistency: Stable (Changsha, Hunan)
- Network Stability: No ownership changes
- Threat Persistence: 0 days
- Recent Signals: Mobile carrier detection, geolocation validation, subnet classification
Relationship Graph
- Primary Relationship: Same Network (CHINANET-HN-CS)
- Associated Domains: None
- Associated Certificates: None
- Correlated IPs: None
Recommended Actions
No specific firewall rules or mitigation actions required. The IP presents as legitimate mobile ISP traffic with no malicious indicators. Standard traffic logging is sufficient.
SOC Analyst Notes
This IP represents normal mobile network infrastructure from CHINANET HUNAN. The associated subnet shows minimal abuse density with only 1 threat sibling out of 8 total IPs. No immediate security concerns identified. Monitor for any changes in service exposure or threat indicators.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | CHINANET HUNAN |
| ASN | AS4134 |
| Network Name | CHINANET-HN-CS |
| CIDR Block | 218.76.0.0/18 |
| RIR | APNIC |
| Country | CN |
| Abuse Contact | — |
🌐 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 | — |
🎯 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 | 2026-07-23 07:48:54 UTC |
| Last Seen | 2026-07-29 17:26:03 UTC |
| Profile Built | 2026-07-29 17:37:31 UTC |
| Data Freshness | Live |
| Signal Types | 17 |
| Total Observations | 17 |
Full dossier details are available via our API.