57.128.121.103
57.128.121.103 is an IPv4 address operated by OVH (AS16276), with approximate network location France. It belongs to datacenter or hosting infrastructure with reverse DNS name localzone-ams-ams9-tor1.as4210011002.nl.eu. As of November 12, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | OVH SAS |
| ASN | AS16276 |
| Network Name | Infra |
| CIDR Block | 57.128.121.0/24 |
| RIR | ARIN |
| Network registration country | FR |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | localzone-ams-ams9-tor1.as4210011002.nl.eu |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | localzone-ams-ams9-tor1.as4210011002.nl.eu |
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.
| spf | Not checked |
| dmarc | Not checked |
| fcrDns | Not checked |
| dnssec | Not checked |
| caa | Not checked |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 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 | — |
🛡️ Public Network Snapshot
| Origin ASN | AS16276 |
| Network Prefix | 57.128.0.0/17 |
| Route mapping | Found |
🎯 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 | 25% | 1 | 1 |
| Overall | 16% | 4 | 4 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Aging
| First Seen | 2026-10-23 13:06:18 UTC |
| Last Seen | 2026-10-31 04:21:06 UTC |
| Profile Built | 2026-11-12 23:10:01 UTC |
| Data Freshness | Aging |
| Signal Types | 18 |
| Total Observations | 18 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 57.128.121.103
Who owns the IP address 57.128.121.103?
57.128.121.103 is registered to OVH SAS. The address falls within the 57.128.121.0/24 network block. Registration is held at ARIN.
Where is 57.128.121.103 located?
Geolocation data places 57.128.121.103 in France. The local time zone is Europe/Paris. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 57.128.121.103 malicious or safe?
57.128.121.103 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 57.128.121.103?
The reverse DNS (PTR) record for 57.128.121.103 is localzone-ams-ams9-tor1.as4210011002.nl.eu. This hostname is not forward-confirmed, so it should be treated as a weak signal.
Is 57.128.121.103 a VPN, proxy, or data center address?
57.128.121.103 is classified as cloud infrastructure and hosting infrastructure based on network ownership and behavioural analysis.