191.205.57.111
IP Intelligence Briefing: 191.205.57.111
Date: 2026-06-10
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**1. Core Profile**
- Risk Score: 50 (Moderate Risk)
- Ownership: Registered to TELEFÔNICA BRASIL S.A (ASN 27699, Brazil).
- Geolocation: São Paulo, Brazil (latitude -23.55, longitude -46.64).
- Network Role: Firewalled / No Services (no open ports, no TLS/HTTP services).
- Threat Indicators: No known malicious activity, no spam, no Tor exit nodes.
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**2. Observation History**
- 17 signals recorded over 30 days:
- Threat Feed Listings: Listed in 8 DNSBLs (2 high-severity, 6 medium-severity).
- Geolocation Consistency: Confirmed as São Paulo, Brazil.
- BGP Data: Prefix 191.205.0.0/16 registered to TELEFÔNICA BRASIL S.A.
- DNSSEC Valid: True.
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**3. Relationships**
- DNS Associations:
- Resolves to 191-205-57-111.user.vivozap.com.br (4 unique PTR records).
- No SPF/DKIM records detected.
- Network Link: Linked to AS27699 (TELEFÔNICA BRASIL S.A).
- No Known Campaigns: No correlated IPs or certificates detected.
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**4. Neighborhood Analysis**
- Subnet: 191.205.57.0/24.
- Abuse Density: 0% (no malicious neighbors detected).
- Sibling IPs: No active neighbors found in the subnet.
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**5. Recommendations**
- Monitor DNS: Investigate vivozap.com.br for potential spoofing or misconfigurations.
- Block IP: Consider blocking the IP due to multiple DNSBL listings and moderate risk score.
- Verify Ownership: Confirm TELEFÔNICA BRASIL S.A’s legitimacy for the ASN.
- Check for Anomalies: Monitor for unexpected geolocation or BGP changes.
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Conclusion:
The IP is associated with a Brazilian telecom provider but shows no direct malicious activity. Its DNS associations and threat feed listings suggest potential risks, warranting further investigation and network segmentation.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | TELEFÔNICA BRASIL S.A |
| ASN | AS27699 |
| Network Name | 216346 |
| CIDR Block | 191.204.0.0/14 |
| RIR | LACNIC |
| Country | BR |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | 191-205-57-111.user.vivozap.com.br |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | 191-205-57-111.user.vivozap.com.br |
🔐 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 | 13% | 1 | 1 |
| routing | 13% | 1 | 1 |
| services | 13% | 1 | 1 |
| ownership | 21% | 2 | 2 |
| reputation | 0% | 0 | 0 |
| geolocation | 13% | 1 | 1 |
| Overall | 12% | 6 | 6 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-22 18:16:55 UTC |
| Last Seen | 2026-06-10 02:44:59 UTC |
| Profile Built | 2026-06-10 02:51:02 UTC |
| Data Freshness | Live |
| Signal Types | 17 |
| Total Observations | 17 |
Full dossier details are available via our API.