IP Intelligence Briefing: 187.51.84.86/32
Date: 2026-06-08
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**1. IP Profile**
- Risk Score: 80 (High Risk)
- Ownership:
- ASN: 10429
- Organization: TELEFÔNICA BRASIL S.A
- CIDR Block: 187.50.0.0/15
- Geolocation:
- Country: Brazil (BR)
- Region: São José do Rio Preto (SP)
- Latitude: -14.24, Longitude: -51.93 (2500km accuracy)
- Network Role: Single-service host (SSH on port 22).
- Threat Indicators:
- No known malware, phishing, or spam activity.
- No Tor exit node, CDN, or VPN associations.
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**2. Observation History**
- Recent Signals (Last 30 Days):
- Minimal operator risk score (0.13).
- DNSSEC validation confirmed.
- 6/8 DNSBL listings (moderate threat confidence).
- No persistent malicious activity or campaign correlations.
- Key Findings:
- Stable network routing (no route changes).
- No geo-plausibility violations.
- SSH service detected (SSH-2.0-OpenSSH_6.7).
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**3. Relationships**
- Linked Entities:
- Subnet: 187.50.0.0/15 (managed by TELEFÔNICA BRASIL).
- No direct connections to known malicious organizations or domains.
- No email authentication (SPF/DKIM) records.
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**4. Neighborhood Analysis**
- Subnet: 187.51.84.86/24
- Neighbor Activity:
- No neighboring IPs found (likely due to /32 subnet isolation).
- Subnet abuse density: 1 (mostly clean).
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**5. Recommendations**
- Monitoring:
- Track SSH access logs for unauthorized activity.
- Monitor DNSBL listings for potential spoofing or abuse.
- Mitigation:
- Consider rate-limiting SSH connections to reduce brute-force risk.
- Validate DNSSEC records for subdomains if hosting services.
- Context:
- The IP is part of a Brazilian ISP network. No immediate threat detected, but high-risk scoring warrants further investigation.
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Note: No actionable firewall rules or security actions generated due to lack of confirmed malicious indicators.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | TELEFÔNICA BRASIL S.A |
| ASN | AS10429 |
| Network Name | 129419 |
| CIDR Block | 187.50.0.0/15 |
| RIR | LACNIC |
| Country | BR |
| Abuse Contact | โ |
๐ DNS Intelligence
| PTR | 187-51-84-86.customer.tdatabrasil.net.br |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 187-51-84-86.customer.tdatabrasil.net.br |
๐ DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
โ๏ธ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Single-Service Host |
| Network Tier | Unknown โ Insufficient routing data to classify |
๐ Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 22 | ssh | tcp | |
| Closed Ports | 25, 80, 443, 3389, 8080, 8443 (1 open / 7 scanned) | ||
| Server | โ |
| HTTP Title | โ |
| SSH Version | SSH-2.0-OpenSSH_6.7 |
๐ TLS Certificate
| SANs | None |
| Valid From | โ |
| Valid Until | โ |
๐ฏ Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 37% | 2 | 5 |
| routing | 13% | 1 | 1 |
| services | 24% | 2 | 3 |
| ownership | 15% | 2 | 2 |
| reputation | 21% | 1 | 3 |
| geolocation | 21% | 2 | 2 |
| Overall | 22% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-07 23:04:02 UTC |
| Last Seen | 2026-06-26 18:10:56 UTC |
| Profile Built | 2026-06-23 01:49:46 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 24 |
Full dossier details are available via our API.