83.172.17.105📋 Copy

# IPDEBRIEF THREAT INTELLIGENCE BRIEFING

Target IP: 83.172.17.105/32

Classification: Residential Endpoint

Assessment Date: 2026-07-27

Risk Level: LOW (Score: 0/100)

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## OWNERSHIP & GEOLOCATION

The IP address is registered to Network Operation Center CJSC ER-Telecom Holding Tomsk branch under ASN 56981 (ERTH-TOMSK-16-NET). The address falls within the 83.172.16.0/22 CIDR block allocated by RIR RIPE. Geolocation data indicates Russia (RU) with a 5000km accuracy radius.

The network role is classified as Residential Infrastructure, with confirmed residential endpoint characteristics. No hosting, CDN, VPN, proxy, mobile carrier, or cloud infrastructure indicators present.

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## THREAT INDICATORS

No active threat indicators detected:

• Abuse Confidence Score: Not applicable
• Blacklist Count: 0
• Is Tor Exit Node: No
• Is Known Attacker: No
• Is Spam Source: No
• Known Campaigns: None detected

Threat feeds and reputation sources show no matches. The control plane indicates minimal operator risk (0.1304) with 8 DNSBL lists total but zero listings for this IP.

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## OBSERVATION HISTORY

Analysis of 15 historical signals reveals a benign trajectory:

• Ownership Stability: Zero ownership changes observed
• Threat Persistence: 0 days of persistent malicious behavior
• Threat Observations: Zero malicious events recorded
• Recent Signals: Consistent residential classification and org name attribution since 2026-07-27

The IP demonstrates stable, non-malicious behavior with no escalation patterns in geolocation, DNS, threat, or scanning signals.

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## NETWORK RELATIONSHIPS

Two network-level relationships identified:

• Same Network: ERTH-TOMSK-16-NET (appears twice in relationship graph)
• No hostname, organization, or certificate associations beyond network affiliation

No external entity links or certificate subjects detected.

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## SUBNET ANALYSIS (83.172.17.105/24)

• Abuse Density: 0.0 (clean)
• Classification: Clean
• Inherited Risk: 0
• Total Siblings: 1 active sibling
• Threat Siblings: 0

The /24 subnet shows no abusive activity. All neighboring IPs classified as low risk with zero high or medium risk distribution.

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## SECURITY ACTIONS & RECOMMENDATIONS

Risk Score: 0/100

Recommended Actions: None required

Firewall Rules: Not applicable

No blocking, rate limiting, or special handling recommended. The IP presents no security risk based on current intelligence.

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## INTELLIGENCE SUMMARY

IP 83.172.17.105 is a legitimate residential endpoint within the ER-Telecom Holding Tomsk branch infrastructure (ASN 56981, RU). The address shows no malicious indicators, blacklist entries, or threat campaign associations. Historical analysis confirms stable, benign behavior with zero threat persistence. The /24 subnet demonstrates clean classification with no abusive neighbors.

Recommendation: Allow traffic. No defensive action required. Monitor for any future behavioral changes that may warrant re-evaluation.

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