182.53.28.40📋 Copy

# IP Intelligence Briefing: 182.53.28.40

## Executive Summary

IP 182.53.28.40 is classified as Moderate Risk (Score: 65) with no active threat indicators. The address belongs to TOT Public Company Limited (ASN 23969) and is associated with Thailand's national telecommunications infrastructure. The IP shows no open services and is firewalled, with risk primarily driven by DNSBL listings rather than active malicious activity.

## Network Ownership & Classification

• Organization: TOT Public Company Limited (TOT-AP)
• ASN: 23969
• CIDR Block: 182.52.0.0/15
• RIR: APNIC
• Classification: ISP Infrastructure / Firewalled
• Network Role: Provider infrastructure with no active services

## Geolocation Data

• Country: Thailand (TH)
• Region: Chon Buri
• Coordinates: 15.87°N, 100.99°E
• Geo Confidence: 52% (Multi-signal inference)
• Validation: GeoPlausible flag not set; multiple geolocation sources provide consensus

## Threat Assessment

• Risk Score: 65 (Moderate)
• Abuse Confidence Score: Not provided
• Blacklist Count: 3 (of 8 total DNSBL checks)
• Known Campaigns: None
• Tor/Proxy/CDN: Not detected
• Is Known Attacker: No
• Is Spam Source: No

The moderate risk classification is driven by DNSBL presence rather than active threat intelligence. No known attack campaigns or threat feed matches detected.

## Service & Port Analysis

• Open Ports: None detected
• Service Status: Firewalled / No Services
• HTTP/HTTPS: Not available
• TLS Certificates: None
• Server Banner: None

## DNS Intelligence

• PTR Hostname: node-5k8.pool-182-53.dynamic.nt-isp.net
• Reverse DNS Resolution: Confirmed
• Forward Resolution: Confirmed
• Domain: nt-isp.net
• Email Authentication: SPF record present; DMARC not configured

## Control Plane & Routing

• BGP Prefix: 182.53.28.0/24
• Origin ASN: 23969
• Route Stability: Not stable (Route changes in last 30 days)
• RPKI State: Not validated
• DNSSEC: Valid
• Operator Score: 0.2609 (Basic)

## Observation History (15 Signals)

Recent observations (July 30-31, 2026) indicate:

• Consistent Thailand geolocation attribution
• No open ports detected in recent scans
• No ownership changes recorded
• No threat persistence patterns observed
• No persistent malicious activity detected

The IP has shown stability with no significant behavioral changes over the observation period.

## Neighborhood Analysis

• Subnet: 182.53.28.40/24
• Abuse Density: 0%
• Sibling IPs with Risk Data: 0
• High-Risk Neighbors: 0
• Threat-Siblings: 0

The /24 subnet shows no elevated neighbor risk, suggesting the IP's moderate classification is isolated.

## Related Entities

• DNS Associations: node-5k8.pool-182-53.dynamic.nt-isp.net (repeated associations)
• Network Relations: TOT-AP (Multiple same-network relationships)
• Organizational Links: None beyond ISP network associations
• Certificate Relations: None

## Recommended Actions

Based on the risk profile and infrastructure classification:

1. Monitor DNSBL Status: Track blacklist presence and removals

2. Block if Necessary: Implement standard ISP traffic filtering rules

3. No Immediate Blocking Required: No active threat indicators detected

4. Geolocation Verification: Confirm Thailand attribution with additional probes if needed

## Risk Context

This IP represents legitimate ISP infrastructure rather than a malicious endpoint. The moderate risk score reflects standard ISP infrastructure risk factors (DNSBL presence, routing instability) rather than active malicious activity. Security teams should treat this as infrastructure-level traffic requiring standard filtering rather than threat-level response.

Last Updated: Based on data through July 31, 2026

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