45.121.25.115
## IP Intelligence Briefing: 45.121.25.115/32
Date: 2026-07-25
Classification: Low Risk
Risk Score: 25/100
Executive Summary
Target IP 45.121.25.115 is associated with Vietnamese network infrastructure provider Vu Dinh Long (ASN: 131429, netname: MOBIFONE-VN). The address is currently firewalled with no active services exposed. While the IP shows minimal operator-level risk indicators, it appears on one DNS blacklist and exhibits unstable BGP routing characteristics.
Network Ownership and Geolocation
- Organization: Vu Dinh Long
- Network: MOBIFONE-VN (45.121.24.0/22)
- ASN: 131429
- Country: Vietnam (VN)
- RIR: ARIN
- Timezone: Asia/Ho_Chi_Minh
Threat Indicators
- Blacklist Status: Listed on 1 of 8 DNS blacklist feeds
- Tor Exit Node: No
- Known Attacker: No
- Spam Source: No
- Campaign Associations: None detected
- Threat Persistence Days: 0
- Persistently Malicious: No
Service and Network Activity
- Open Ports: None detected
- DNS PTR Records: None
- Forward Resolution: Not confirmed
- Network Role: Firewalled / No Services
- Service Purpose: No active services exposed
Control Plane Observations
- BGP Prefix: 45.121.24.0/22
- Route Stability: Unstable (isRouteStable: false)
- DNSSEC Validation: Valid
- Operator Score: Minimal (0.1304)
- Traceroute: 30 hops total, 12 timed out, transit networks include Comcast
Temporal Analysis
Observation history shows 15 data points captured on 2026-07-25. Geolocation data consistently resolves to Vietnam (coordinates: 14.06, 108.28). Ownership changes: 0. No evidence of persistent malicious behavior.
Neighborhood Analysis
- Subnet: 45.121.25.115/24
- Abuse Density: 0
- Total Siblings: 0
- Active Siblings: 0
- Risk Distribution: No high, medium, or low-risk neighbors detected
Recommended Actions
- Monitor: Maintain passive monitoring for any service changes on this address
- Allow: No immediate blocking required given low-risk profile
- Note: Monitor BGP routing stability and DNS blacklist status changes
Intelligence Notes
This IP belongs to a Vietnamese telecommunications network infrastructure. The firewalled state with no exposed services and minimal threat indicators suggests legitimate hosting or network infrastructure. The single DNS blacklist entry warrants periodic review but does not indicate active malicious use at this time.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Do Quang Duong |
| ASN | AS131429 |
| Network Name | MOBIFONE-VN |
| CIDR Block | 45.121.24.0/22 |
| RIR | ARIN |
| 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 | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS131429 |
| Network Prefix | 45.121.24.0/22 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 22% | 1 | 3 |
| geolocation | 34% | 2 | 3 |
| Overall | 24% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-09 01:19:48 UTC |
| Last Seen | 2026-09-29 20:37:03 UTC |
| Profile Built | 2026-09-26 20:41:00 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 23 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 45.121.25.115
Who owns the IP address 45.121.25.115?
45.121.25.115 is registered to Do Quang Duong. The address falls within the 45.121.24.0/22 network block. Registration is held at ARIN.
Where is 45.121.25.115 located?
Geolocation data places 45.121.25.115 in Denver. 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 45.121.25.115 malicious or safe?
45.121.25.115 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.