3.228.188.191
3.228.188.191 is an IPv4 address operated by Amazon Data Services Northern Virginia (AS14618), geolocated to Ashburn, United States. Its reverse DNS name is ec2-3-228-188-191.compute-1.amazonaws.com. As of November 1, 2026, IPDebrief rates it High Risk (70/100); no anonymizing service was detected.
IP 3.228.188.191 resolves to an Amazon Web Services EC2 instance in Ashburn, Virginia, presenting a valid TLS certificate for *.duolingo.com. Despite standard web server configuration, the asset is classified as Campaign Infrastructure with a critical severity risk score of 70. It is listed on eight DNSBLs with high severity and correlates with 18 other IPs in a coordinated attack campaign. Due to strong threat evidence, the recommended action is to block this IP immediately using standard firewall configurations.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon Data Services Northern Virginia |
| ASN | AS14618 |
| Network Name | AMAZON-IAD |
| CIDR Block | 3.224.0.0/12 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-3-228-188-191.compute-1.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-3-228-188-191.compute-1.amazonaws.com |
🔐 DNS Hygiene
| Hygiene Score | 60% (Good) |
| SPF | 2/2 domains |
| DMARC | 2/2 domains |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 2 domains |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| Closed Ports | 22, 25, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | Web server detected |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | *.duolingo.com |
| Valid From | 2025-11-25T00:00:00+00:00 |
| Valid Until | 2026-12-24T23:59:59+00:00 |
| TLS Protocol | Tls12 |
| Cipher Suite | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 |
| Signature Algorithm | sha256RSA |
| Validity Period | 394 days |
🛡️ Public Network Snapshot
| Origin ASN | AS14618 |
| Network Prefix | 3.224.0.0/12 |
| Route mapping | Found |
| HSTS | Not detected |
| CSP | Not detected |
| HTTP/2 | Enabled |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 35% | 2 | 2 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 25% | 1 | 1 |
| geolocation | 25% | 1 | 1 |
| Overall | 22% | 6 | 6 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-23 10:12:09 UTC |
| Last Seen | 2026-11-01 08:17:00 UTC |
| Profile Built | 2026-11-01 08:34:24 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 25 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 3.228.188.191
Who owns the IP address 3.228.188.191?
3.228.188.191 is registered to Amazon Data Services Northern Virginia. The address falls within the 3.224.0.0/12 network block. Registration is held at ARIN.
Where is 3.228.188.191 located?
Geolocation data places 3.228.188.191 in Ashburn, VA, United States. The local time zone is America/New_York. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 3.228.188.191 malicious or safe?
3.228.188.191 currently carries a high risk assessment, meaning indicators associated with malicious or abusive activity have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 3.228.188.191?
The reverse DNS (PTR) record for 3.228.188.191 is ec2-3-228-188-191.compute-1.amazonaws.com. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 3.228.188.191?
Responsive ports observed on 3.228.188.191 include 80, 443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.