100.51.19.139
100.51.19.139 is an IPv4 address operated by Amazon Data Services Northern Virginia (AS14618), geolocated to Ashburn, United States. It belongs to datacenter or hosting infrastructure with reverse DNS name ec2-100-51-19-139.compute-1.amazonaws.com. As of November 6, 2026, IPDebrief rates it High Risk (70/100); no anonymizing service was detected.
IP 100.51.19.139 resolves to an Amazon Web Services compute instance in Ashburn, Virginia, associated with the amazonaws.com domain and Epic Games internal TLS certificates. Despite stable ownership and good DNS hygiene, the profile carries a risk score of 70 with strong threat evidence, triggering a critical recommendation to block the address. The endpoint responds with a 403 Forbidden status on port 443 and is fingerprinted as AWS Load Balancer v2.0. While the overall confidence label is Very Low due to limited corroboration, the high-risk campaign likelihood and threat list matches necessitate immediate firewall blocking.
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 | 100.48.0.0/12 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-100-51-19-139.compute-1.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-100-51-19-139.compute-1.amazonaws.com |
🔐 DNS Hygiene
| Hygiene Score | 60% (Good) |
| SPF | 3/4 domains |
| DMARC | 3/4 domains |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Not configured |
| Domains Checked | 4 domains |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| 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 | epic-connect-mgr-prod.face-live.internal.epicgames.net*.ol.epicgames.com*.epicgames.dev*.ol.epicgames.net |
| Valid From | 2026-08-23T00:00:00+00:00 |
| Valid Until | 2027-03-08T23:59:59+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_128_GCM_SHA256 |
| Signature Algorithm | sha256RSA |
| Validity Period | 197 days |
🛡️ Public Network Snapshot
| Origin ASN | AS14618 |
| Network Prefix | 100.48.0.0/12 |
| 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 | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 25% | 1 | 1 |
| Overall | 16% | 4 | 4 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-10-18 15:42:28 UTC |
| Last Seen | 2026-11-06 02:16:31 UTC |
| Profile Built | 2026-11-06 02:23:05 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 25 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 100.51.19.139
Who owns the IP address 100.51.19.139?
100.51.19.139 is registered to Amazon Data Services Northern Virginia. The address falls within the 100.48.0.0/12 network block. Registration is held at ARIN.
Where is 100.51.19.139 located?
Geolocation data places 100.51.19.139 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 100.51.19.139 malicious or safe?
100.51.19.139 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 100.51.19.139?
The reverse DNS (PTR) record for 100.51.19.139 is ec2-100-51-19-139.compute-1.amazonaws.com. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 100.51.19.139?
Responsive ports observed on 100.51.19.139 include 443. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 100.51.19.139 a VPN, proxy, or data center address?
100.51.19.139 is classified as cloud infrastructure and hosting infrastructure based on network ownership and behavioural analysis.