171.243.148.21📋 Copy

## IP Intelligence Briefing: 171.243.148.21/32

Executive Summary

IP address 171.243.148.21 is classified as Low Risk with an overall risk score of 15. The IP demonstrates minimal threat activity, operates with firewalled/no services, and exhibits no malicious indicators. Current security posture warrants standard monitoring without immediate blocking actions.

---

Network Profile

DNS & Hostname Analysis

The IP resolves to `dynamic-ip-adsl.viettel.vn` with a forward confirmation failure. PTR records consistently point to the same hostname, indicating dynamic residential ISP allocation. Email authentication records (SPF/DMARC) are present but no hosted domains or certificates are associated.

Threat Indicators

• Blacklist Status: 0 blacklists
• DNSBL Listed: 1 of 8 total lists (dnsblListedCount)
• Known Campaigns: None
• Tor Exit/Attacker/Spam Source: False
• Abuse Confidence: Not applicable
• Threat Feeds: Empty

Control Plane & Routing

• Operator Score: 0.1304 (Minimal)
• Route Stability: False (isRouteStable)
• MoAS Status: False
• RPKI/IRR Consistency: Not evaluated
• DNSSEC: Valid

Historical Behavior

Analysis of 40 signal observations reveals consistent low-risk behavior:

• Operator score maintained at 0.1304 across all recent observations
• Signal type 2349 (routing/operator) shows "Minimal" classification
• No significant temporal shifts in threat posture
• Threat persistence days: 0
• No persistent malicious activity detected

Neighborhood Context

The /24 subnet (171.243.148.0/24) contains 17 sibling IPs:

• Abuse Density: 0
• Risk Distribution: 0 High, 7 Medium, 9 Low
• Notable Neighbors:

- 171.243.148.105 (Risk: 55)

- 171.243.148.69, 171.243.148.70, 171.243.148.197, 171.243.148.199, 171.243.148.230 (Risk: 40)

The target IP sits within a subnet showing mixed risk profiles, with the target itself representing the lower-risk segment.

Traceroute Analysis

• Hop Count: 23
• First Hop RTT: 0.2ms
• Last Hop RTT: 256ms
• Timed Out Hops: 5
• Transit Networks: Comcast, Cogent
• GeoValidation: 0 probes, geoPlausible false

Recommended Actions

No specific security actions or firewall rules are recommended at this time due to the low-risk classification. Standard monitoring protocols apply.

---

Intelligence Conclusion

IP 171.243.148.21 exhibits characteristics consistent with a dynamically allocated residential or business IP address. The absence of open ports, threat indicators, and malicious reputation supports a benign classification. The subnet context shows elevated risk among neighboring addresses, but the target IP maintains its low-risk posture. No immediate threat mitigation required; maintain routine monitoring.

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