109.164.48.43
109.164.48.43 is an IPv4 address operated by Starnet - Starnet, CZ (AS44489), with approximate network location České Budějovice, Czech Republic. Its reverse DNS name is nat-43a.starnet.cz. As of November 14, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | MNT-CZSTARNET |
| ASN | AS44489 |
| Network Name | STARNET_CZ |
| CIDR Block | 109.164.32.0/19 |
| RIR | ARIN |
| Network registration country | CZ |
| Routing operator | Starnet - Starnet, CZ |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | nat-43a.starnet.cz |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | nat-43a.starnet.cz |
DNS Posture
Results describe the queried names. SPF, DMARC and CAA are domain policies, not requirements for every IP. DNSSEC here describes reverse DNS; inconclusive validation does not mean unsigned.
Not assessed: 0 conclusive IP DNS checks.
| caa | Not found at queried name cz |
| spf | Unknown / lookup inconclusive nat-43a.starnet.cz |
| dmarc | Unknown / lookup inconclusive _dmarc.nat-43a.starnet.cz |
| dnssec | Unknown / lookup inconclusive 43.48.164.109.in-addr.arpa |
| fcrDns | Unknown / lookup inconclusive nat-43a.starnet.cz |
☁️ 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
| Port | Latest capture attempt |
|---|---|
| 443 | Certificate not captured; current certificate unknown (unreachable) |
| 8443 | Certificate not captured; current certificate unknown (unreachable) |
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS44489 |
| Network Prefix | 109.164.0.0/17 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 33% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 18% | 1 | 2 |
| ownership | 13% | 1 | 1 |
| reputation | 13% | 1 | 1 |
| geolocation | 19% | 2 | 2 |
| Overall | 18% | 8 | 10 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-11-05 10:31:22 UTC |
| Last Seen | 2026-11-14 05:33:47 UTC |
| Profile Built | 2026-11-14 05:50:10 UTC |
| Data Freshness | Live |
| Signal Types | 17 |
| Total Observations | 21 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 109.164.48.43
Who owns the IP address 109.164.48.43?
109.164.48.43 is registered to MNT-CZSTARNET. The address falls within the 109.164.32.0/19 network block. Registration is held at ARIN.
Where is 109.164.48.43 located?
Geolocation data places 109.164.48.43 in České Budějovice, South Bohemian Region, Czech Republic. The local time zone is Europe/Prague. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 109.164.48.43 malicious or safe?
109.164.48.43 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 109.164.48.43?
The reverse DNS (PTR) record for 109.164.48.43 is nat-43a.starnet.cz. This hostname is forward-confirmed, meaning it resolves back to the same address.