42.1.65.123
IP Intelligence Dossier
Your IP: 216.73.217.131
🏢 Ownership & Registration
| Organization | Do Quang Duong |
| ASN | AS131429 |
| Network Name | MOBIFONE-VN |
| CIDR Block | 42.1.64.0/18 |
| 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 | 0% (None) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 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 | Web server detected |
| HTTP Title | — |
🔐 TLS Certificate
No certificate
Issued by —
N/A
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS131429 |
| Network Prefix | 42.1.65.0/24 |
| 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 | 38% | 2 | 12 |
| routing | 16% | 1 | 2 |
| services | 33% | 2 | 9 |
| ownership | 27% | 2 | 7 |
| reputation | 18% | 1 | 4 |
| geolocation | 22% | 2 | 4 |
| Overall | 26% | 10 | 38 |
Coverage: 6/6 dimensions · Data sufficiency: sufficient
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
⚠ Geo sources disagree on country: US, VN
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-07 00:24:43 UTC |
| Last Seen | 2026-09-29 20:37:01 UTC |
| Profile Built | 2026-09-29 18:45:18 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 40 |
🔍 22 signal types · 40 observations collected
This report is generated from 22+ independent intelligence signals including
ownership records, DNS analysis, BGP routing, TLS certificates, port scanning, threat feeds,
behavioral fingerprinting, and more.
Full dossier details are available via our API.
Full dossier details are available via our API.
❓ Frequently Asked Questions About 42.1.65.123
Who owns the IP address 42.1.65.123?
42.1.65.123 is registered to Do Quang Duong. The address falls within the 42.1.64.0/18 network block. Registration is held at APNIC.
Where is 42.1.65.123 located?
Geolocation data places 42.1.65.123 in Hanoi, Hanoi, 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 42.1.65.123 malicious or safe?
42.1.65.123 currently carries a moderate risk assessment, meaning some indicators warrant caution, but the evidence is mixed. This assessment is generated from continuously collected signals and can change over time.
🏘️ Related IP Addresses
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ℹ️ About This Report
All data shown is publicly available network metadata — IP addresses do not reliably identify individuals.
Assessments are probabilistic and should not be used as sole basis for access control decisions.
To report an issue or request data review, contact admin@ipdebrief.com.