100.51.135.141
The IP address 100.51.135.141/32 was identified as a legitimate endpoint associated with Amazon Web Services (ASN 14618) located in Ashburn, Virginia. Reverse DNS resolution confirmed the host as `ec2-100-51-135-141.compute-1.amazonaws.com`, and TLS certificate analysis revealed a certificate issued by Amazon RSA 2048 M04 for the subject `*.api.smartthings.com`.
Threat intelligence assessments returned no malicious indicators. The address was not detected on any blacklists, and no known campaigns or attacker signatures were correlated. Behavioral analysis recorded zero honeypot hits, enumeration strikes, or WAF violations. Operational checks indicated port 443 (HTTPS) was active. DNS hygiene ratings were good, with SPF and DMARC records in place. The security profile recommended allowing the IP, noting the forward-confirmed reverse DNS pointed to a valid service provider environment. No immediate defensive action was required based on the available data.
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 | ec2-100-51-135-141.compute-1.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-100-51-135-141.compute-1.amazonaws.com |
🔐 DNS Hygiene
| Hygiene Score | 60% (Good) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 443 | https | tcp | — |
| Closed Ports | 22, 25, 80, 3389, 8080, 8443 (1 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | *.api.smartthings.com |
| Valid From | 2026-05-20T00:00:00+00:00 |
| Valid Until | 2026-12-03T23:59:59+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_128_GCM_SHA256 |
| Signature Algorithm | sha256RSA |
| Validity Period | 197 days |
| Serial Number | 051AF4EF554C89EBA7FF3BB4B88F74C3 |
| Thumbprint | 767D95E45B213E6C921D73FEFD49FC10C1C0A128 |
🎯 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 | 35% | 2 | 2 |
| Overall | 24% | 7 | 7 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-25 10:47:40 UTC |
| Last Seen | 2026-09-25 10:47:40 UTC |
| Profile Built | 2026-09-25 10:58:09 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 23 |
Full dossier details are available via our API.