43.228.157.121
🏢 Ownership & Registration
| Organization | IRT-GZSYSTEMS-HK |
| ASN | AS205759 |
| Network Name | Cyber-Security-SG |
| CIDR Block | 43.228.157.0/24 |
| RIR | APNIC |
| Country | SG |
| 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 | 0% (None) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Single-Service Host |
| Network Tier | Tier 3 — Basic operator with some routing infrastructure |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 22 | ssh | tcp | Banner detected |
| Closed Ports | 25, 80, 443, 3389, 8080, 8443 (1 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS36680 |
| Network Prefix | 43.228.157.0/24 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 38% | 2 | 90 |
| routing | 27% | 2 | 4 |
| services | 30% | 1 | 5 |
| ownership | 13% | 1 | 1 |
| reputation | 34% | 1 | 45 |
| geolocation | 15% | 1 | 2 |
| Overall | 26% | 8 | 147 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-11 20:39:31 UTC |
| Last Seen | 2026-09-29 23:34:41 UTC |
| Profile Built | 2026-09-29 20:02:13 UTC |
| Data Freshness | Live |
| Signal Types | 32 |
| Total Observations | 517 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 43.228.157.121
Who owns the IP address 43.228.157.121?
43.228.157.121 is registered to IRT-GZSYSTEMS-HK. The address falls within the 43.228.157.0/24 network block. Registration is held at APNIC.
Where is 43.228.157.121 located?
Geolocation data places 43.228.157.121 in Frankfurt am Main, Hesse, Singapore. The local time zone is Asia/Singapore. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 43.228.157.121 malicious or safe?
43.228.157.121 currently carries a moderate risk assessment, meaning some indicators warrant caution, but the evidence is mixed. This assessment is generated from continuously collected signals and can change over time.
What ports are open on 43.228.157.121?
Responsive ports observed on 43.228.157.121 include 22. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.