37.221.140.142📋 Copy

# IP Intelligence Briefing: 37.221.140.142/32

Classification: Moderate Risk | Report Date: 2026-07-27

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## Executive Summary

IP address 37.221.140.142 is classified as Moderate Risk (40/100) with no active threat indicators. The address belongs to Radio Service Ltd. (ASN 62384), a RIPE-allocated infrastructure provider. The IP presents as a firewalled endpoint with no publicly exposed services. While the individual IP shows no malicious activity, the /24 subnet demonstrates moderate abuse density requiring defensive monitoring.

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## Ownership & Network Classification

Network classification indicates the IP is firewalled with no active services. No open ports, TLS certificates, or web services detected.

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## Threat Indicators

• Known Attacker: No
• Spam Source: No
• Tor Exit Node: No
• Blacklist Count: 0
• Known Campaigns: None identified
• Threat Persistence: 0 days

The IP has no persistent malicious activity recorded in the control plane or threat feeds.

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## Geolocation & Network Behavior

• Geolocation Consensus: Validated (1 source)
• Claimed Location: Lviv, Ukraine
• Distance from Claimed Location: 1,663.8 km
• Minimum Possible RTT: 33.3 ms
• Observed RTT: 123.4 ms (average)
• Traceroute Hops: 12
• First Hop RTT: 0.1 ms
• DNSSEC Validation: Valid

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## Subnet Analysis (37.221.140.0/24)

• Total Sibling IPs: 19
• Active Siblings: 8
• Abuse Density: 0
• Threat Siblings: 0
• Risk Distribution: 15 medium, 3 low, 0 high

While the target IP (37.221.140.142) carries a risk score of 40, the surrounding subnet shows moderate risk concentration without active threat siblings. Notable neighbors include:

• 37.221.140.139 (Risk: 65)
• 37.221.140.65, .68, .69, .170, .206, .221, .231, .253 (Risk: 55)

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## Historical Observations

15 observations recorded as of 2026-07-27. Key signals include:

• Network classification: Not CDN, not proxy, not mobile, not cloud, not hosting
• Organization: Radio Service Ltd.
• ASN: Not detected in recent probes
• Country: Ukraine (UA)
• RTT measurements consistent with claimed geolocation

No ownership changes or threat persistence patterns observed.

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## Relationships

• Same Network: RADIOSERVICE-201712 (2 relationships)
• External Entities: None detected

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## Defensive Recommendations

Based on the moderate risk profile, the following firewall rules are recommended for blocking:

```bash

# iptables

iptables -A INPUT -s 37.221.140.142 -j DROP

# nftables

nft add rule inet filter input ip saddr 37.221.140.142 drop

# nginx

deny 37.221.140.142;

# pfSense

37.221.140.142/32

# Cloudflare WAF

{"description":"Block 37.221.140.142 — IPDebrief risk score 40","action":"block","filter":{"expression":"ip.src eq 37.221.140.142"}}

# AWS WAF

{"Addresses":["37.221.140.142/32"],"Description":"IPDebrief risk 40"}

```

Note: These recommendations are probabilistic and should be combined with other signals before taking action.

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## Conclusion

IP 37.221.140.142 is a moderately risky address belonging to Radio Service Ltd. infrastructure in Ukraine. While the IP itself shows no active threats, the subnet exhibits moderate risk concentrations. Defensive blocking is recommended pending additional contextual signals. Monitor the /24 subnet for emerging threat patterns.

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