188.133.23.158📋 Copy

# Intelligence Briefing: 188.133.23.158/32

Classification: Routine Surveillance | Status: Low Risk | Last Updated: 2026-07-23

## Executive Summary

The IP address 188.133.23.158 is associated with Syrian ISP TARASSUL (SY-ISP-TARASSUL) under ASN 201550. Current risk assessment indicates Low Risk (score: 0), though historical signal analysis reveals recent blacklist activity requiring monitoring. The IP presents geolocation validation discrepancies between reported regions.

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## Profile Analysis

Ownership & Infrastructure:

• Organization: Firas Ahmad
• Netname: SY-ISP-TARASSUL
• ASN: 201550 (Syrian Telecommunication Private Closed Joint Stock Company)
• CIDR Block: 188.133.0.0/19
• RIR: RIPE

Geolocation Indicators:

• Primary Location: Frankfurt, DE (Germany)
• Secondary Location: Syria (SY)
• Geo-Validation: Invalid/Inconsistent (geoConsensus: false, geoPlausible: false)
• Timezone: Europe/Berlin

Network Classification:

• Open Ports: None detected
• Service Status: Firewalled / No Services
• DNS Resolution: PTR records absent, forward resolution failed
• SSL/TLS: No certificates detected
• ISP Type: Residential/ISP infrastructure

Threat Indicators:

• Blacklist Count: 0 (current profile)
• Known Attacker: No
• Spam Source: No
• Tor Exit: No
• Abuse Confidence Score: Not applicable

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## Observation History (11 Signals)

Recent activity captured on 2026-07-23 indicates mixed signal characteristics:

Notable Signals:

• Blacklist Listings: 8 total lists detected; 1 listing with high severity
• ASN Resolution: 188.133.16.0/20 assigned to Syrian Telecommunications
• DNSSEC Status: Valid on reverse lookup zone (158.23.133.188.in-addr.arpa)
• Abuse Contact: exp-dir@net.sy

Temporal Analysis:

• No persistent malicious behavior detected
• Zero threat persistence days recorded
• No ownership changes observed
• Threat observation count: 0

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## Relationship Mapping

• Network Affiliation: SY-ISP-TARASSUL (same network classification)
• Related Entities: 1 relationship identified (network-level)
• Certificate Correlations: None

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## Neighborhood Analysis

Subnet: 188.133.23.158/24

• Active Neighbors: 0
• Abuse Density: 0.0
• Risk Distribution: No high/medium/low risk siblings identified
• Threat Siblings: None detected

The IP operates in isolation within its /24 subnet with no neighboring abuse activity.

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## Security Recommendations

Current Risk Level: Low Risk (Score: 0)

Actionable Guidance:

1. No Immediate Blocking Required – Current risk profile does not warrant blocking

2. Monitor Blacklist Activity – One high-severity blacklist listing detected in recent history; review source and rationale

3. Geo-Validation Review – Investigate DE/SY location discrepancy for potential misconfiguration or spoofing

4. Passive Monitoring – No active services detected; maintain passive observation

5. Neighbor Watch – No adjacent threat activity; continue baseline monitoring

Firewall Rules: Not applicable (risk score: 0, no actionable recommendations generated)

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## Assessment Notes

This IP presents as a low-risk residential/ISP endpoint with historical blacklist activity but no current active threat indicators. The Syrian ISP association combined with geolocation inconsistencies warrants periodic re-evaluation. No immediate defensive action required; maintain observation status.

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