3.251.64.172
3.251.64.172 is an IPv4 address operated by Amazon Web Services (AS16509), with approximate network location Dublin, Ireland. It belongs to datacenter or hosting infrastructure with reverse DNS name ec2-3-251-64-172.eu-west-1.compute.amazonaws.com. As of November 11, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Amazon Data Services Ireland Limited |
| ASN | AS16509 |
| Network Name | AMAZON-DUB |
| CIDR Block | 3.248.0.0/13 |
| RIR | ARIN |
| Network registration country | Ireland |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-3-251-64-172.eu-west-1.compute.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-3-251-64-172.eu-west-1.compute.amazonaws.com |
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 | Tier 3 — Basic operator with some routing infrastructure |
🔌 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 | AS16509 |
| Network Prefix | 3.248.0.0/13 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 33% | 2 | 4 |
| routing | 34% | 1 | 3 |
| services | 19% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 22% | 1 | 3 |
| geolocation | 27% | 2 | 3 |
| Overall | 27% | 10 | 18 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Stale
| First Seen | 2026-07-16 10:36:38 UTC |
| Last Seen | 2026-10-06 08:54:16 UTC |
| Profile Built | 2026-11-11 20:32:28 UTC |
| Data Freshness | Stale |
| Signal Types | 23 |
| Total Observations | 25 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 3.251.64.172
Who owns the IP address 3.251.64.172?
3.251.64.172 is registered to Amazon Data Services Ireland Limited. The address falls within the 3.248.0.0/13 network block. Registration is held at ARIN.
Where is 3.251.64.172 located?
Geolocation data places 3.251.64.172 in Dublin, D, Ireland. The local time zone is Europe/Dublin. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 3.251.64.172 malicious or safe?
3.251.64.172 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 3.251.64.172?
The reverse DNS (PTR) record for 3.251.64.172 is ec2-3-251-64-172.eu-west-1.compute.amazonaws.com. This hostname is forward-confirmed, meaning it resolves back to the same address.
Is 3.251.64.172 a VPN, proxy, or data center address?
3.251.64.172 is classified as cloud infrastructure and hosting infrastructure based on network ownership and behavioural analysis.