103.187.5.251
🏢 Ownership & Registration
| Organization | IRT-VNNIC-AP |
| ASN | AS63737 |
| Network Name | IOT-VN |
| CIDR Block | 103.187.4.0/23 |
| RIR | APNIC |
| Country | VN |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
🔐 DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Single-Service Host |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 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 | AS63737 |
| Network Prefix | 103.187.4.0/23 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 31% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 25% | 2 | 3 |
| ownership | 17% | 2 | 3 |
| reputation | 14% | 1 | 2 |
| geolocation | 12% | 2 | 2 |
| Overall | 18% | 10 | 15 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-21 00:43:02 UTC |
| Last Seen | 2026-09-05 14:46:39 UTC |
| Profile Built | 2026-09-05 14:55:53 UTC |
| Data Freshness | Live |
| Signal Types | 18 |
| Total Observations | 25 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 103.187.5.251
Who owns the IP address 103.187.5.251?
103.187.5.251 is registered to IRT-VNNIC-AP. The address falls within the 103.187.4.0/23 network block. Registration is held at APNIC.
Where is 103.187.5.251 located?
Geolocation data places 103.187.5.251 in Vietnam. The local time zone is Asia/Ho_Chi_Minh. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 103.187.5.251 malicious or safe?
103.187.5.251 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 ports are open on 103.187.5.251?
Responsive ports observed on 103.187.5.251 include 22. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.