16.78.105.128
## IP Intelligence Briefing: 16.78.105.128
Classification: AWS EC2 Instance - Low Risk Infrastructure
Date: August 2026
Executive Summary
IP 16.78.105.128 is an Amazon Web Services (AWS) EC2 compute instance hosted in Jakarta, Indonesia (ap-southeast-3 region). The address registers a low-risk score of 25 with no active threat indicators. The subnet demonstrates a clean security posture with zero abuse density. No security action required.
Technical Profile
| Attribute | Value |
|---|---|
| **Risk Score** | 25 (Low Risk) |
| **ASN** | 16509 (Amazon Data Services Jakarta) |
| **Organization** | AMAZON-CGK |
| **CIDR Block** | 16.78.0.0/16 |
| **Geolocation** | Jakarta, Indonesia (JK) |
| **Infrastructure** | CloudCompute (AWS EC2) |
| **Services** | Firewalled / No Services |
| **Blacklist Status** | 0 entries |
DNS Resolution
- PTR Record: ec2-16-78-105-128.ap-southeast-3.compute.amazonaws.com
- Forward Resolution: Forward confirmed to amazonaws.com domain
- Email Authentication: SPF and DMARC records present
Threat Intelligence
- Threat Indicators: None detected
- Known Campaigns: No associations
- Tor Exit Node: No
- Known Attacker: No
- Spam Source: No
- DNSBL Listings: 0 (infrastructure-related listings excluded)
- Historical Threat Observations: 0 persistently malicious indicators
Neighborhood Analysis (16.78.105.0/24)
- Subnet Classification: Clean
- Abuse Density: 0.0
- Active Siblings: 1 (self)
- High Risk Neighbors: 0
- Medium Risk Neighbors: 0
- Low Risk Neighbors: 0
Observation History
24 observations tracked, most recent from August 5, 2026. Signals include:
- Traceroute analysis (30 hops, target reached: false)
- DNS operator assessment (Basic classification, score: 0.2609)
- Subnet analysis (clean classification, inherited risk: 0)
- Blacklist monitoring (8 total lists, max severity: high - infrastructure-related)
Relationship Graph
- DNS Associations: ec2-16-78-105-128.ap-southeast-3.compute.amazonaws.com
- Network Associations: AMAZON-CGK (16.78.0.0/16)
- Related Entities: 10 relationships (all DNS and network associations to AWS infrastructure)
Recommended Actions
No security actions required. The IP represents legitimate AWS cloud infrastructure with no malicious activity observed. Standard network monitoring protocols apply.
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*Analysis generated from IPDebrief intelligence platform data.*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon Data Services Jakarta |
| ASN | AS16509 |
| Network Name | AMAZON-CGK |
| CIDR Block | 16.78.0.0/16 |
| RIR | ARIN |
| Country | Indonesia |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-16-78-105-128.ap-southeast-3.compute.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-16-78-105-128.ap-southeast-3.compute.amazonaws.com |
🔐 DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | Present |
| DMARC | Present |
| FCrDNS | Verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| 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 | — |
🛡️ Public Network Snapshot
| Origin ASN | AS16509 |
| Network Prefix | 16.78.0.0/16 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 3 |
| routing | 25% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 33% | 2 | 4 |
| Overall | 24% | 10 | 15 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-17 05:00:05 UTC |
| Last Seen | 2026-08-31 16:01:13 UTC |
| Profile Built | 2026-08-31 16:08:03 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 29 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 16.78.105.128
Who owns the IP address 16.78.105.128?
16.78.105.128 is registered to Amazon Data Services Jakarta. The address falls within the 16.78.0.0/16 network block. Registration is held at ARIN.
Where is 16.78.105.128 located?
Geolocation data places 16.78.105.128 in Jakarta, JK, Indonesia. The local time zone is Asia/Jakarta. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 16.78.105.128 malicious or safe?
16.78.105.128 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 16.78.105.128?
The reverse DNS (PTR) record for 16.78.105.128 is ec2-16-78-105-128.ap-southeast-3.compute.amazonaws.com. This hostname is forward-confirmed, meaning it resolves back to the same address.
Is 16.78.105.128 a VPN, proxy, or data center address?
16.78.105.128 is classified as cloud infrastructure and hosting infrastructure based on network ownership and behavioural analysis.