91.234.135.158
## THREAT INTELLIGENCE BRIEFING: 91.234.135.158/32
Classification: LOW RISK — DEFENSIVE MONITORING RECOMMENDED
Analysis Date: 2026-07-25
Analyst: IPDebrief Intelligence Operations
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EXECUTIVE SUMMARY
IP address 91.234.135.158 presents a LOW RISK profile (Risk Score: 30/100) with no active threat indicators. The IP is firewalled with no open services, but operates within a subnet exhibiting elevated abuse density (0.2/1.0). While the target IP shows minimal malicious behavior, neighborhood analysis indicates mixed reputation among adjacent addresses.
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TECHNICAL PROFILE
| Attribute | Value |
|---|---|
| **Risk Score** | 30/100 |
| **Reputation** | Low Risk |
| **ASN** | 52026 |
| **BGP Prefix** | 91.234.134.0/23 |
| **Operator Score** | 0.1304 (Minimal) |
| **Network Role** | Firewalled / No Services |
| **Open Ports** | None |
| **DNSBL Listings** | 2 of 8 lists |
| **Tor/Proxy/VPN** | Not detected |
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NEIGHBORHOOD ANALYSIS
Subnet: 91.234.135.0/24
| Metric | Value |
|---|---|
| **Abuse Density** | 0.2 (20%) |
| **Total Siblings** | 6 |
| **Active Siblings** | 4 |
| **Threat Siblings** | 0 |
Elevated-Risk Neighboring IPs:
- 91.234.135.106 (Risk: 55)
- 91.234.135.125 (Risk: 70)
- 91.234.135.155 (Risk: 55)
- 91.234.135.219 (Risk: 80)
- 91.234.135.253 (Risk: 70)
Assessment: The subnet contains multiple IPs with medium-to-high risk scores, suggesting shared hosting infrastructure or compromised adjacent addresses. The target IP (91.234.135.158) remains isolated from these indicators.
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OBSERVATION HISTORY
Total Observations: 10
Most Recent: 2026-07-25
- Subnet Classification: Clean (0 abuse density inherited)
- Network Type: Not CDN, Cloud, Tor, Proxy, or VPN
- DNSBL Status: Listed on 2 of 8 threat feeds
- Threat Persistence: 0 days
- Campaign Correlation: No matches
Temporal Trend: Stable. No escalation in threat activity observed.
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RELATIONSHIP GRAPH
Connected Entities: None detected
Linked Hostnames: None
Linked Organizations: None
Linked Certificates: None
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RECOMMENDED ACTIONS
| Priority | Action | Rationale |
|---|---|---|
| **LOW** | Monitor subnet (91.234.135.0/24) | Elevated abuse density warrants periodic review |
| **LOW** | Whitelist or allow through existing filters | Target IP shows no malicious indicators |
| **MEDIUM** | Investigate high-risk neighbors | 91.234.135.219 (Risk: 80) requires separate analysis |
Firewall Rules: No blocking required. Standard egress/ingress rules apply.
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CONCLUSION
IP 91.234.135.158 is not actively malicious but operates in a higher-density environment. SOC teams should monitor subnet-level activity and address the elevated-risk neighbors separately. No immediate threat mitigation required for this specific IP address.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | AS6700-MNT |
| ASN | AS52026 |
| Network Name | KBCONLINE |
| CIDR Block | 91.234.132.0/22 |
| RIR | RIPE |
| Country | RS |
| 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 | Web Server |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| 22 | ssh | tcp | Banner detected |
| Closed Ports | 25, 3389, 8080, 8443 (3 open / 7 scanned) | ||
| Server | Web server detected |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS52026 |
| Network Prefix | 91.234.134.0/23 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 27% | 2 | 2 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 13% | 1 | 1 |
| geolocation | 0% | 0 | 0 |
| Overall | 15% | 5 | 5 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-08 13:03:58 UTC |
| Last Seen | 2026-08-26 20:19:28 UTC |
| Profile Built | 2026-08-29 07:34:25 UTC |
| Data Freshness | Live |
| Signal Types | 17 |
| Total Observations | 19 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 91.234.135.158
Who owns the IP address 91.234.135.158?
91.234.135.158 is registered to AS6700-MNT. The address falls within the 91.234.132.0/22 network block. Registration is held at RIPE.
Where is 91.234.135.158 located?
Geolocation data places 91.234.135.158 in Belgrade, 00, RS. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 91.234.135.158 malicious or safe?
91.234.135.158 currently carries a moderate risk assessment, meaning some indicators warrant caution, but the evidence is mixed. This assessment is generated from continuously collected signals and can change over time.
What ports are open on 91.234.135.158?
Responsive ports observed on 91.234.135.158 include 80, 443, 22. Port visibility reflects the most recent scan and may change as the host's configuration or firewall rules change.