103.145.190.83
IP Intelligence Briefing: 103.145.190.83
Date: 2026-06-11
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**1. Core Profile**
- Risk Score: 25 (Low Risk)
- Ownership: Registered to IRT-SYNT-CN (ASN 55933) under APNIC.
- Geolocation:
- Reported Location: Hong Kong (latitude 22.28, longitude 114.18).
- Ownership Country: China (CN).
- Geolocation Plausibility: Confirmed via 1 source.
- Network Role: Firewalled / No Services (no open ports, no TLS/HTTP services detected).
- Threat Indicators:
- No malicious indicators, abuse confidence score, or blacklist listings.
- Not associated with Tor, spam, or known attacker campaigns.
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**2. Observation History**
- Recent Activity (Last 30 Days):
- Geolocation Inference: 1 observation (China, 52% confidence).
- DNSsec Validity: Confirmed.
- DNSBL Listing: 1 out of 8 lists (low priority).
- No Persistent Threats: No repeated scans, DNS changes, or malicious campaign correlations.
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**3. Relationships**
- Linked Entities:
- Network: SYNT-CN (same /23 subnet).
- No Hostnames/Domains: No DNS records or email auth configurations detected.
- No Certificates: No TLS certificates or server banners identified.
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**4. Neighborhood Analysis**
- Subnet: 103.145.190.0/23.
- Neighbor Density: No sibling IPs found (likely due to /32 prefix).
- Subnet Abuse: 0% abuse density; no malicious neighbors.
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**5. Recommendations**
- Monitor Geolocation Discrepancy: Investigate the mismatch between reported Hong Kong location and Chinese ownership.
- No Immediate Action Required: Low risk profile with no active threats.
- Maintain Baseline: Track for unexpected DNS changes or service exposure.
Conclusion: 103.145.190.83 is a low-risk, firewalled host with no malicious indicators. No actionable threats detected; monitor for anomalies.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | IRT-SYNT-CN |
| ASN | AS55933 |
| Network Name | SYNT-CN |
| CIDR Block | 103.145.190.0/23 |
| 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 | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 13% | 1 | 1 |
| routing | 13% | 1 | 1 |
| services | 13% | 1 | 1 |
| ownership | 27% | 2 | 3 |
| reputation | 0% | 0 | 0 |
| geolocation | 13% | 1 | 1 |
| Overall | 13% | 6 | 7 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-28 00:15:32 UTC |
| Last Seen | 2026-06-11 12:35:45 UTC |
| Profile Built | 2026-06-11 13:01:22 UTC |
| Data Freshness | Live |
| Signal Types | 16 |
| Total Observations | 16 |
Full dossier details are available via our API.