190.89.136.208
IP Intelligence Briefing: 190.89.136.208
Date: 2026-06-17
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**1. Core Profile**
- Risk Score: 55 (Moderate Risk)
- Ownership: T. R. TELECOMUNICACOES LTDA (AS270368), Brazil (SP, Votuporanga)
- Network Role: Residential / Web Server (HTTP/HTTPS open on ports 80/443)
- Server Fingerprint: Lighttpd 1.4.39 (outdated)
- Threat Indicators: No direct malicious indicators (no malware, phishing, or spam links).
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**2. Observations**
- Recent Activity (Last 30 Days):
- 17 observations, with 22% high-risk neighbors in the 190.89.136.0/23 subnet.
- DNSBL listings (3/8) suggest potential spam or abuse.
- DNSSEC validation is active, but no CAA records.
- No known campaigns or TLS certificate issues.
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**3. Neighborhood Analysis**
- Subnet: 190.89.136.0/23 (94 IPs total, 30 active).
- Abuse Density: 22% (22 high-risk neighbors).
- Notable Neighbors:
- 190.89.136.32, 190.89.136.35, 190.89.136.38, etc., share similar risk scores (55).
- Recommendation: Monitor subnet for lateral movement or shared infrastructure risks.
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**4. Threat Context**
- No Known Campaigns: No correlation with malware families or phishing clusters.
- Residential IP Caveats: Possible false positives due to shared hosting or misconfigured services.
- DNSBL Listings: Investigate if linked to spam/surveys (check Spamhaus, OpenBL, etc.).
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**5. Actions**
- Short-Term:
- Block 190.89.136.0/23 in firewall rules if high-risk neighbors confirm malicious activity.
- Validate lighttpd server for vulnerabilities (old version).
- Long-Term:
- Monitor DNSBL status and correlate with internal logs for suspicious traffic patterns.
- Consider rate-limiting HTTP/HTTPS traffic from this subnet.
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Conclusion: This IP appears residential with no direct malicious activity, but its subnet has a notable abuse density. Prioritize monitoring and validate DNSBL ties for potential spam risks.
Source: IPDebrief (https://ipdebrief.com)
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 | Web Server |
| Network Tier | End-User — Residential ISP endpoint |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| Closed Ports | 22, 25, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | lighttpd/1.4.39 |
| 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 | 26% | 2 | 3 |
| routing | 17% | 1 | 1 |
| services | 28% | 2 | 3 |
| ownership | 19% | 2 | 2 |
| reputation | 17% | 1 | 2 |
| geolocation | 32% | 2 | 3 |
| Overall | 23% | 10 | 14 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Fresh
| First Seen | 2026-05-07 23:04:03 UTC |
| Last Seen | 2026-06-25 20:09:19 UTC |
| Profile Built | 2026-06-24 09:25:03 UTC |
| Data Freshness | Fresh |
| Signal Types | 19 |
| Total Observations | 21 |
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