109.72.12.203
🏢 Ownership & Registration
| Organization | Lukas Holzel |
| ASN | AS49767 |
| Network Name | IPB_DYNAMIC_NAT |
| CIDR Block | 109.72.12.0/24 |
| RIR | ARIN |
| Country | CZ |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ip-109-72-12-203.pb.cz |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | ip-109-72-12-203.pb.cz |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| 22 | ssh | tcp | Banner detected |
| Closed Ports | 25, 3389, 8080, 8443 (3 open / 7 scanned) | ||
| Server | Web server detected |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS49767 |
| Network Prefix | 109.72.0.0/20 |
| Route mapping | Found |
| Certificates in transparency logs | 0 certificates |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 24% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 28% | 2 | 4 |
| ownership | 17% | 2 | 3 |
| reputation | 8% | 1 | 2 |
| geolocation | 25% | 2 | 4 |
| Overall | 18% | 10 | 18 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-16 10:35:44 UTC |
| Last Seen | 2026-09-26 08:30:35 UTC |
| Profile Built | 2026-09-24 20:15:23 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 25 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 109.72.12.203
Who owns the IP address 109.72.12.203?
109.72.12.203 is registered to Lukas Holzel. The address falls within the 109.72.12.0/24 network block. Registration is held at ARIN.
Where is 109.72.12.203 located?
Geolocation data places 109.72.12.203 in Příbram, 20, Czechia. The local time zone is Europe/Prague. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 109.72.12.203 malicious or safe?
109.72.12.203 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.
What is the hostname for 109.72.12.203?
The reverse DNS (PTR) record for 109.72.12.203 is ip-109-72-12-203.pb.cz. This hostname is not forward-confirmed, so it should be treated as a weak signal.
What ports are open on 109.72.12.203?
Responsive ports observed on 109.72.12.203 include 80, 443, 22. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.