190.89.137.224
IP Intelligence Briefing: 190.89.137.224
Date: 2026-06-07
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**1. Core Profile**
- Risk Score: 80 (High Risk)
- Ownership: Registered to T. R. TELECOMUNICACOES LTDA (AS270368) in Brazil (SP, Votuporanga).
- Geolocation: Resides in São Paulo, Brazil (latitude -20.48, longitude -50.01).
- Network Role: Residential endpoint (no cloud, CDN, or mobile indicators).
- Threat Indicators: No direct malicious activity (no known attackers, spam, or campaigns).
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**2. Observation History**
- Recent Signals (Last 30 Days):
- Geolocation: Confirmed as Brazil, São Paulo (2026-06-07).
- Network Risk: Minimal operator score (0.13), but DNSBL listings (3/8).
- Threat Persistence: No persistent malicious activity detected.
- Temporal Trends: No significant changes in risk or ownership.
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**3. Relationships & Subnet Context**
- Network Relationships:
- Linked to AS270368 (T. R. TELECOMUNICACOES LTDA) and subnet 190.89.137.0/24.
- No connections to known malicious entities or organizations.
- Subnet Analysis:
- Abuse Density: 39.22% (moderate risk).
- Neighbor Risk: 21 high-risk IPs, 70 medium-risk IPs, 9 low-risk IPs in the /24 subnet.
- Active Siblings: 28 IPs (153 total in subnet).
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**4. Threat & Security Indicators**
- DNSSEC: Validated.
- DNSBL Listings: 3/8 lists (potential risk).
- Control Plane:
- BGP prefix 190.89.137.0/24 with stable route changes (0 in 30 days).
- No RPKI violations or IRR inconsistencies.
- Services: No open ports, TLS, or HTTP indicators.
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**5. Recommendations**
- Monitor Subnet: The subnet has moderate abuse density; prioritize monitoring high-risk neighbors (e.g., 190.89.137.1–4).
- Verify DNSBL Status: Investigate why this IP is listed on 3 DNSBLs (e.g., Spamhaus, Barracuda).
- Geolocation Validation: Confirm the IP’s location in São Paulo, Brazil, as geolocation data shows inferred coordinates (-14.24, -51.93) conflicting with registered city.
- Network Segmentation: Consider isolating this residential subnet if it connects to internal resources.
Next Steps: Cross-reference with internal threat intel feeds and monitor for unexpected DNS or network activity.
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End of Briefing
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | T. R. TELECOMUNICACOES LTDA |
| ASN | AS270368 |
| Network Name | 378879 |
| CIDR Block | 190.89.136.0/23 |
| RIR | LACNIC |
| Country | BR |
| Abuse Contact | — |
🌐 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 | Residential |
| Service Purpose | Residential Endpoint |
| Network Tier | End-User — Residential ISP endpoint |
🔌 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 | 35% | 2 | 3 |
| routing | 19% | 1 | 2 |
| services | 13% | 1 | 1 |
| ownership | 19% | 2 | 2 |
| reputation | 13% | 1 | 2 |
| geolocation | 35% | 2 | 3 |
| Overall | 22% | 9 | 13 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Fresh
| First Seen | 2026-05-14 07:13:55 UTC |
| Last Seen | 2026-06-23 07:03:36 UTC |
| Profile Built | 2026-06-15 02:03:54 UTC |
| Data Freshness | Fresh |
| Signal Types | 13 |
| Total Observations | 13 |
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