128.1.131.137
IP Intelligence Briefing: 128.1.131.137/32
*Generated via IPDebrief tools: Profile, History, Relationships, & Neighbors*
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**1. Core Profile**
- Risk Assessment: Moderate Risk (50/100). No active threat indicators (malware, phishing, spam).
- Ownership: Registered to UCLOUD (ASN 135377), ARIN-regulated.
- Geolocation: United States (US), region "HCW", city "Central". Coordinates and timezone unspecified.
- Network Role: Firewalled / No Services. No open ports, TLS certs, or HTTP services detected.
- DNS: No PTR records, domains, or email auth (SPF/DKIM).
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**2. Threat & Behavioral Analysis**
- Threat Indicators: Zero malicious activity detected (no blacklists, honeypot hits, or WAF violations).
- Historical Trends:
- 14 observations over 2 days (June 2–3, 2026).
- Risk score remained low (0–25). No persistent malicious activity.
- DNSSEC valid, but geolocation plausibility flagged as false.
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**3. Network Relationships**
- Linked Entities:
- Subnet: 128.1.131.0/24 (UCLOUD network).
- Repeated relationships to network ZL-HKG-UCLOUD-0040 (possible CDN or infrastructure).
- Control Plane:
- BGP prefix: `128.1.131.0/24` (UCLOUD).
- Route stability: Unstable (0 route changes in 30 days).
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**4. Subnet Neighborhood**
- Subnet Abuse Density: 0% (clean).
- Neighbors:
- 128.1.131.78: Low risk (no score data).
- 128.1.131.218: Moderate risk (25/100).
- Neighbor Risk: One sibling IP (128.1.131.218) shows potential risk, warranting closer inspection.
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**5. Recommendations**
- Monitor Subnet: Track 128.1.131.218 for unusual activity, as it may introduce risk to the subnet.
- Verify Geolocation: Investigate discrepancies in geolocation data (plausibility flag).
- Network Segmentation: Ensure isolation between low-risk and moderate-risk IPs in the subnet.
- DNSSEC & BGP: Confirm DNSSEC validation and BGP route stability for UCLOUD network.
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*End of Briefing*
*Generated by IPDebrief | Copyright © 2026 Jason Alberino*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | UCLOUD |
| ASN | AS135377 |
| Network Name | — |
| CIDR Block | — |
| RIR | ARIN |
| Country | — |
| 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 | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 21% | 2 | 2 |
| routing | 13% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 24% | 2 | 3 |
| reputation | 15% | 1 | 2 |
| geolocation | 19% | 2 | 2 |
| Overall | 17% | 9 | 11 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:03:39 UTC |
| Last Seen | 2026-06-22 13:12:59 UTC |
| Profile Built | 2026-06-22 13:16:44 UTC |
| Data Freshness | Live |
| Signal Types | 15 |
| Total Observations | 18 |
Full dossier details are available via our API.