13.128.249.238
13.128.249.238 is an IPv4 address operated by Amazon.com, Inc. (AS16509), geolocated to Ashburn, United States. Its reverse DNS name is ec2-13-128-249-238.compute-1.amazonaws.com. As of November 2, 2026, IPDebrief rates it High Risk (70/100); no anonymizing service was detected.
IP 13.128.249.238 is an Amazon Web Services EC2 instance located in Ashburn, VA, with PTR records pointing to amazonaws.com and TLS certificates for roblox.com. Despite legitimate ownership, the asset is flagged as Campaign Infrastructure with a critical severity risk score of 70 and a recommendation to block. The IP is listed on eight DNSBL lists categorized as bots and correlates with 18 certificate matches for coordinated attack infrastructure. Overall confidence remains low at 0.325, though threat evidence supports the critical block recommendation.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon.com, Inc. |
| ASN | AS16509 |
| Network Name | AMAZO-4 |
| CIDR Block | 13.128.0.0/16 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-13-128-249-238.compute-1.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-13-128-249-238.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-scl-1a.roblox.com |
| Valid From | 2026-09-14T00:00:00+00:00 |
| Valid Until | 2027-03-30T23:59:59+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_128_GCM_SHA256 |
| Signature Algorithm | sha256RSA |
| Validity Period | 197 days |
🛡️ Public Network Snapshot
| Origin ASN | AS16509 |
| Network Prefix | 13.128.248.0/21 |
| 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 | 35% | 2 | 2 |
| routing | 25% | 1 | 1 |
| services | 35% | 2 | 2 |
| ownership | 25% | 1 | 2 |
| reputation | 25% | 1 | 1 |
| geolocation | 50% | 2 | 3 |
| Overall | 32% | 9 | 11 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-19 13:14:47 UTC |
| Last Seen | 2026-11-02 09:59:28 UTC |
| Profile Built | 2026-11-02 10:27:13 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 25 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 13.128.249.238
Who owns the IP address 13.128.249.238?
13.128.249.238 is registered to Amazon.com, Inc.. The address falls within the 13.128.0.0/16 network block. Registration is held at ARIN.
Where is 13.128.249.238 located?
Geolocation data places 13.128.249.238 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 13.128.249.238 malicious or safe?
13.128.249.238 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 13.128.249.238?
The reverse DNS (PTR) record for 13.128.249.238 is ec2-13-128-249-238.compute-1.amazonaws.com. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 13.128.249.238?
Responsive ports observed on 13.128.249.238 include 443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.