18.231.113.48
Intelligence analysis identified IP 18.231.113.48/32 as legitimate Amazon Web Services infrastructure belonging to Amazon Data Services Brazil (ASN 16509). Forward DNS resolution returned the hostname ec2-18-231-113-48.sa-east-1.compute.amazonaws.com, geolocating the resource to São Paulo, Brazil. Threat assessment classified the reputation as Low Risk with a score of 25. No blacklist entries, known attacker associations, or malicious indicators were recorded. Service enumeration showed no open ports, with the address categorized as Firewalled / No Services. Current profile data indicates authorized cloud infrastructure, and no immediate defensive action is recommended.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon Data Services Brazil |
| ASN | AS16509 |
| Network Name | AMAZON-GRU |
| CIDR Block | 18.231.0.0/16 |
| RIR | ARIN |
| Country | Brazil |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-18-231-113-48.sa-east-1.compute.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-18-231-113-48.sa-east-1.compute.amazonaws.com |
🔐 DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Tier 3 — Basic operator with some routing infrastructure |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | — |
| 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 | Consistent (100%) |
| Attribution | High (85%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-08-16 00:57:31 UTC |
| Last Seen | 2026-08-28 04:07:00 UTC |
| Profile Built | 2026-08-29 21:03:14 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 22 |
Full dossier details are available via our API.