139.162.18.203
139.162.18.203 is an IPv4 address operated by Linode (AS63949), with approximate network location Singapore, Singapore. It belongs to datacenter or hosting infrastructure with reverse DNS name client.notionx.com. As of October 6, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | Linode Abuse Support |
| ASN | AS63949 |
| Network Name | LINODE-AP |
| CIDR Block | 139.162.0.1/32 |
| RIR | ARIN |
| Network registration country | SG |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | client.notionx.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | 139-162-18-203.ip.linodeusercontent.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 | Single-Service Host |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 22 | ssh | tcp | Banner detected |
| Closed Ports | 25, 80, 443, 3389, 8080, 8443 (1 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS63949 |
| Network Prefix | 139.162.0.0/19 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 36% | 2 | 5 |
| routing | 8% | 1 | 1 |
| services | 33% | 2 | 5 |
| ownership | 20% | 2 | 3 |
| reputation | 22% | 1 | 3 |
| geolocation | 24% | 2 | 3 |
| Overall | 24% | 10 | 20 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (70%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-15 16:15:58 UTC |
| Last Seen | 2026-10-06 04:27:27 UTC |
| Profile Built | 2026-10-06 04:28:11 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 28 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 139.162.18.203
Who owns the IP address 139.162.18.203?
139.162.18.203 is registered to Linode Abuse Support. The address falls within the 139.162.0.1/32 network block. Registration is held at ARIN.
Where is 139.162.18.203 located?
Geolocation data places 139.162.18.203 in 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 139.162.18.203 malicious or safe?
139.162.18.203 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 139.162.18.203?
The reverse DNS (PTR) record for 139.162.18.203 is client.notionx.com. This hostname is forward-confirmed, meaning it resolves back to the same address.
What ports are open on 139.162.18.203?
Responsive ports observed on 139.162.18.203 include 22. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.
Is 139.162.18.203 a VPN, proxy, or data center address?
139.162.18.203 is classified as cloud infrastructure and hosting infrastructure based on network ownership and behavioural analysis.