18.143.141.136
18.143.141.136 is an IPv4 address operated by Amazon Web Services (AS16509), with approximate network location Singapore, Singapore. It belongs to datacenter or hosting infrastructure with reverse DNS name ec2-18-143-141-136.ap-southeast-1.compute.amazonaws.com. As of November 12, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Amazon Data Services Singapore |
| ASN | AS16509 |
| Network Name | AMAZON-SIN |
| CIDR Block | 18.142.0.0/15 |
| RIR | ARIN |
| Network registration country | Singapore |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ec2-18-143-141-136.ap-southeast-1.compute.amazonaws.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ec2-18-143-141-136.ap-southeast-1.compute.amazonaws.com |
DNS Posture
Results describe the queried names. SPF, DMARC and CAA are domain policies, not requirements for every IP. DNSSEC here describes reverse DNS; inconclusive validation does not mean unsigned.
Not assessed: 0 conclusive IP DNS checks.
| spf | Not checked |
| dmarc | Not checked |
| fcrDns | Not checked |
| dnssec | Not checked |
| caa | Not checked |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Web Server |
| Network Tier | Tier 3 — Basic operator with some routing infrastructure |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 443 | https | tcp | — |
| 22 | ssh | tcp | Banner detected |
| Closed Ports | 25, 80, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | *.gs-tunnel.comgs-tunnel.com |
| Valid From | 2025-09-27T00:00:00+00:00 |
| Valid Until | 2026-09-27T23:59:59+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_256_GCM_SHA384 |
| Signature Algorithm | sha384RSA |
| Validity Period | 365 days |
🛡️ Public Network Snapshot
| Origin ASN | AS16509 |
| Network Prefix | 18.142.0.0/15 |
| Route mapping | Found |
| HSTS | Not detected |
| CSP | Not detected |
| HTTP/2 | Not detected |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 42% | 2 | 3 |
| routing | 40% | 1 | 4 |
| services | 27% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 35% | 2 | 3 |
| Overall | 30% | 10 | 17 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Stale
| First Seen | 2026-07-09 01:19:00 UTC |
| Last Seen | 2026-10-08 09:30:36 UTC |
| Profile Built | 2026-11-12 23:10:26 UTC |
| Data Freshness | Stale |
| Signal Types | 22 |
| Total Observations | 23 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 18.143.141.136
Who owns the IP address 18.143.141.136?
18.143.141.136 is registered to Amazon Data Services Singapore. The address falls within the 18.142.0.0/15 network block. Registration is held at ARIN.
Where is 18.143.141.136 located?
Geolocation data places 18.143.141.136 in Singapore, SG, Singapore. The local time zone is Asia/Singapore. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 18.143.141.136 malicious or safe?
18.143.141.136 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 18.143.141.136?
The reverse DNS (PTR) record for 18.143.141.136 is ec2-18-143-141-136.ap-southeast-1.compute.amazonaws.com. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 18.143.141.136?
Responsive ports observed on 18.143.141.136 include 443, 22. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 18.143.141.136 a VPN, proxy, or data center address?
18.143.141.136 is classified as cloud infrastructure and hosting infrastructure based on network ownership and behavioural analysis.