Intelligence analysts assessed IP 18.239.183.81/32 as low-risk infrastructure associated with Amazon.com, Inc. (ASN 16509). The network role identified the address as a CloudFront web server operating on TCP ports 80 and 443 within the 18.238.0.0/15 CIDR block. Risk metrics returned a score of 25 with zero blacklist listings and no confirmed abuse indicators. DNS hygiene remained excellent, confirming valid SPF and DMARC records.
Operational data presented signal contradictions that limited overall confidence to 0.2335. While geolocation data placed the host in Boston, US, RTT physics validation failed, recording a measured latency of 14.0ms against a minimum possible distance latency of 152.5ms for the claimed location. The surrounding subnet (18.239.183.0/24) maintained a mostly_clean classification with an abuse density of 0.12, though 12 threat siblings were detected within the 100 total siblings. Behavioral analysis recorded no honeypot hits or WAF violations. The threat actor classification labeled the host as Suspicious Host, though specific indicators remained unclassified. Due to the signal contradictions and low confidence score, recommendations included monitoring the address at low severity
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ Ownership & Registration
| Organization | Amazon.com, Inc. |
| ASN | AS16509 |
| Network Name | AMAZON-CF |
| CIDR Block | 18.238.0.0/15 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
π DNS Intelligence
| PTR | server-18-239-183-81.bos50.r.cloudfront.net |
| Forward Confirmed | Yes β FCrDNS verified |
| Forward Hostnames | server-18-239-183-81.bos50.r.cloudfront.net |
π DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | 2/2 domains |
| DMARC | 2/2 domains |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Present |
| Domains Checked | 2 domains |
βοΈ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Hosting β Infrastructure provider without advanced routing |
π Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | β |
| 443 | https | tcp | β |
| Closed Ports | 22, 25, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | CloudFront |
| HTTP Title | β |
π TLS Certificate
| SANs | None |
| Valid From | β |
| Valid Until | β |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 33% | 2 | 5 |
| routing | 13% | 1 | 1 |
| services | 27% | 2 | 4 |
| ownership | 27% | 2 | 3 |
| reputation | 22% | 1 | 4 |
| geolocation | 33% | 2 | 5 |
| Overall | 26% | 10 | 22 |
| Data Coherence | Mostly Consistent (80%) β 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-08-30 17:42:30 UTC |
| Last Seen | 2026-09-27 01:27:53 UTC |
| Profile Built | 2026-09-27 01:40:19 UTC |
| Data Freshness | Live |
| Signal Types | 26 |
| Total Observations | 49 |
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