18.161.21.120
Intellectual Property address 18.161.21.120/32 was identified with a low-risk reputation and a risk score of 25. The infrastructure was attributed to Amazon.com, Inc. (ASN 16509, AMAZON-CF) within the Amazon Web Services cloud environment. The service purpose was classified as a Web Server, with active HTTP and HTTPS traffic on ports 80 and 443. Server banner identification confirmed CloudFront.
Geolocation data localized the host to Seattle, Washington, US. However, network validation metrics recorded a contradiction between the reported distance of 7,883km and an RTT of 12ms. DNS resolution was confirmed for the domain cloudfront.net, and email authentication protocols (SPF and DMARC) were present. Control plane analysis indicated one DNSBL listing among eight total lists, while the threat indicators list remained empty.
The intelligence assessment classified the intent as unknown and recommended monitoring due to signal contradictions. The operator score was labeled minimal at 0.2174. The profile indicated live data freshness with 23 total observations.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon.com, Inc. |
| ASN | AS16509 |
| Network Name | AMAZON-CF |
| CIDR Block | 18.160.0.0/15 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | server-18-161-21-120.bos50.r.cloudfront.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | server-18-161-21-120.bos50.r.cloudfront.net |
🔐 DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Present |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 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 | CloudFront |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 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 | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-16 21:27:41 UTC |
| Last Seen | 2026-09-16 21:27:41 UTC |
| Profile Built | 2026-09-16 21:46:09 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 24 |
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