45.135.1.231📋 Copy

# IP Intelligence Briefing: 45.135.1.231/32

Classification: Low Risk / No Active Threat Indicators

Date of Analysis: July 25, 2026

Analyst: IPDebrief Intelligence Team

---

## Executive Summary

IP 45.135.1.231 presents as a low-risk endpoint (Risk Score: 25) with no active threat indicators. The address is assigned to IP4SECUR-MNT organization under ASN 43444, operating within the 45.135.1.0/24 CIDR block. Despite being listed on 8 DNSBLs (1 with high severity), no active malicious activity, known campaigns, or service exploitation has been observed.

---

## Network Ownership & Classification

---

## Threat Assessment

Current Threat Status: No Active Indicators

• Threat Indicators: None detected
• Known Campaigns: None
• Known Attacker Status: Negative
• Spam Source Status: Negative
• Blacklist Count: 8 total DNSBL listings (1 high severity)
• Abuse Confidence Score: Not available
• Risk Score: 25 (Low Risk)

Behavioral Indicators:

• Zero honeypot hits
• Zero enumeration strikes
• Zero WAF violations
• No persistent malicious activity detected

---

## Neighborhood Analysis (45.135.1.0/24)

Subnet Risk Profile:

• Total Sibling IPs: 2
• Abuse Density: 0 (No subnet-level abuse)
• Risk Distribution: 0 high, 0 medium, 2 low risk

Neighbor IPs:

Assessment: The /24 subnet demonstrates a clean security posture with no abuse activity observed across sibling addresses.

---

## Observation History

Total Observations: 14 signals recorded (most recent: 2026-07-25)

Recent Signal Summary:

• Network Detection: No special services identified (confidence: 0.30)
• Ownership Stability: No changes detected (confidence: 0.85)
• Geolocation: Inferred US location (confidence: 0.28)
• Blacklist Status: Listed on 8 DNSBLs (confidence: 0.85)
• DNSSEC: Valid (confidence: 0.90)

Temporal Analysis: No ownership changes or persistent threat indicators observed.

---

## Technical Details

DNS Configuration:

• PTR Resolution: None detected
• Forward Resolution: None detected
• DNSSEC: Valid
• Hosted Domains: 0

Network Routing:

• Origin ASN: 43444
• BGP Prefix: 45.135.1.0/24
• Route Stability: Unstable
• Transit Networks: Comcast, Lumen
• Hop Count: 30

Services: No open ports, no TLS certificates, no HTTP services detected.

---

## Recommended Actions

Immediate Actions: No specific firewall rules or blocking recommendations generated due to low-risk classification.

Monitoring Recommendations:

1. Continue passive monitoring for any service activation

2. Monitor DNSBL listing status (8 lists flagged)

3. Track subnet-level activity for 45.135.1.0/24

4. Re-evaluate if blacklisted entries change severity

Note: Recommendations are probabilistic and should be combined with other security signals before implementation.

---

## Conclusion

IP 45.135.1.231 represents a low-risk endpoint with no active malicious indicators. The subnet demonstrates clean operational characteristics with zero abuse density. While DNSBL listings warrant awareness, no immediate defensive action is recommended beyond standard monitoring. The IP is suitable for allowlisting if required for legitimate communications, though ongoing observation is advised.

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.