3.15.117.81
3.15.117.81 is an IPv4 address operated by Amazon Technologies Inc. (AS16509), geolocated to Columbus, United States. It belongs to datacenter or hosting infrastructure with reverse DNS name ec2-3-15-117-81.us-east-2.compute.amazonaws.com. As of October 29, 2026, IPDebrief rates it High Risk (70/100); no anonymizing service was detected.
Intelligence Briefing: IP Address 3.15.117.81
Risk Assessment: High Risk
Risk Score: 70
Recommended Action: Block (Critical Severity)
Ownership and Infrastructure:
The IP address 3.15.117.81 belongs to Amazon Technologies Inc. (ASN 16509) within the Amazon Web Services (AWS) CloudCompute environment. The infrastructure is identified as an EC2 instance located in Columbus, Ohio, United States (us-east-2).
Technical Profile:
Network scans identified the address serving HTTP (TCP 80) and HTTPS (TCP 443) traffic. The server banner reported `awselb/2.0`, indicating an AWS Elastic Load Balancer. The TLS certificate was issued by Amazon RSA 2048 M04 for the subject `CN=*.eufy.com`. DNS records confirmed reverse and forward resolution to `ec2-3-15-117-81.us-east-2.compute.amazonaws.com`.
Threat Indicators:
While the address is hosted on a cloud provider, the profile indicates a critical risk posture. Correlation data identified 14 correlated IPs and 14 certificate matches. The campaign likelihood was classified as "high" based on these correlations. Despite the address being registered to a legitimate cloud provider, the high risk score and associated campaign data warrant defensive measures.
Recommendation:
The profile recommends blocking this address at the perimeter to mitigate potential threat exposure.
Firewall Rule Examples:
* iptables: `iptables -A INPUT -s 3.15.117.81 -j DROP`
* nginx: `deny 3.15.117.81;`
* pf: `block in quick on egress from 3.15.117.81`
Data Freshness:
Observations recorded as of October 29, 2026.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon Technologies Inc. |
| ASN | AS16509 |
| Network Name | AT-88-Z |
| CIDR Block | 3.0.0.0/9 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-3-15-117-81.us-east-2.compute.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-3-15-117-81.us-east-2.compute.amazonaws.com |
🔐 DNS Hygiene
| Hygiene Score | 60% (Good) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| 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 | *.eufy.comeufy.com |
| Valid From | 2026-01-26T00:00:00+00:00 |
| Valid Until | 2027-02-24T23:59:59+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 | AS16509 |
| Network Prefix | 3.14.0.0/15 |
| 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 | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 35% | 2 | 2 |
| ownership | 25% | 1 | 2 |
| reputation | 0% | 0 | 0 |
| geolocation | 35% | 2 | 2 |
| Overall | 24% | 7 | 8 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-29 03:06:48 UTC |
| Last Seen | 2026-10-29 03:06:48 UTC |
| Profile Built | 2026-10-29 03:25:26 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 24 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 3.15.117.81
Who owns the IP address 3.15.117.81?
3.15.117.81 is registered to Amazon Technologies Inc.. The address falls within the 3.0.0.0/9 network block. Registration is held at ARIN.
Where is 3.15.117.81 located?
Geolocation data places 3.15.117.81 in Columbus, OH, 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 3.15.117.81 malicious or safe?
3.15.117.81 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 3.15.117.81?
The reverse DNS (PTR) record for 3.15.117.81 is ec2-3-15-117-81.us-east-2.compute.amazonaws.com. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 3.15.117.81?
Responsive ports observed on 3.15.117.81 include 80, 443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 3.15.117.81 a VPN, proxy, or data center address?
3.15.117.81 is classified as cloud infrastructure and hosting infrastructure based on network ownership and behavioural analysis.