15.220.121.167
15.220.121.167 is an IPv4 address operated by Amazon Data Services Argentina (AS16509), geolocated to Ashburn, United States. Its reverse DNS name is ec2-15-220-121-167.compute-1.amazonaws.com. As of November 7, 2026, IPDebrief rates it High Risk (70/100); no anonymizing service was detected.
On 2026-10-24 through 2026-11-07, the IP address 15.220.121.167 was observed with a High Risk reputation and a risk score of 70. Ownership records attribute the address to Amazon Data Services Argentina (AS16509, 15.220.120.0/21), while geolocation data places the host in Ashburn, VA, US. The system operated as a Web Server on port 443/HTTPS using Nginx, with a TLS certificate subject of `lms-aws-us-east-1-bue-1a.roblox.com`.
Threat indicators flagged a high likelihood of association with campaign infrastructure, correlating with ten other IPs and certificate subjects, alongside one DNSBL listing. Despite zero reported incidents and an active attacker status of false, the intelligence profile recommended blocking the address due to a high risk score with strong threat evidence at critical severity. Firewall rules for iptables, nginx, and pf were generated for enforcement.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon Data Services Argentina |
| ASN | AS16509 |
| Network Name | AMAZON-EZE |
| CIDR Block | 15.220.120.0/21 |
| RIR | ARIN |
| Country | Argentina |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-15-220-121-167.compute-1.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-15-220-121-167.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 |
|---|---|---|---|
| 443 | https | tcp | — |
| Closed Ports | 22, 25, 80, 3389, 8080, 8443 (1 open / 7 scanned) | ||
| Server | Web server detected |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | lms-aws-us-east-1-bue-1a.roblox.com |
| Valid From | 2026-09-22T00:00:00+00:00 |
| Valid Until | 2027-04-07T23:59:59+00:00 |
🛡️ Public Network Snapshot
| Origin ASN | AS16509 |
| Network Prefix | 15.220.120.0/21 |
| 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 | 33% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 27% | 2 | 3 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 27% | 2 | 3 |
| Overall | 23% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-24 19:30:57 UTC |
| Last Seen | 2026-11-07 01:49:57 UTC |
| Profile Built | 2026-11-07 02:15:30 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 33 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 15.220.121.167
Who owns the IP address 15.220.121.167?
15.220.121.167 is registered to Amazon Data Services Argentina. The address falls within the 15.220.120.0/21 network block. Registration is held at ARIN.
Where is 15.220.121.167 located?
Geolocation data places 15.220.121.167 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 15.220.121.167 malicious or safe?
15.220.121.167 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 15.220.121.167?
The reverse DNS (PTR) record for 15.220.121.167 is ec2-15-220-121-167.compute-1.amazonaws.com. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 15.220.121.167?
Responsive ports observed on 15.220.121.167 include 443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.