Is IP address 137.220.224.39 dangerous?

Yes, 137.220.224.39 is considered dangerous with a threat level of 10/10. It has been reported 15 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 137.220.224.39?

IP address 137.220.224.39 is operated by CTG Server Limited (ASN 152194) and is geolocated to JP. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 137.220.224.39?

Yes, blocking 137.220.224.39 is strongly recommended. With a threat level of 10/10 and 15 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 137.220.224.39?

Our threat assessment for 137.220.224.39 has a confidence score of 98%, based on 15 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

137.220.224.39

IPv4 Public

AS152194

CTG Server Limited

15 Reports

JP Location

CTG Server Limited ASN 152194

15 Reports

Mixed Data Source

Extreme Threat

IP 137.220.224.39 classified at threat level 10/10 with 15 documented attacks.

Advanced threat indicators confirmed with 98% certainty.

More threatening than 100% of monitored IPs

Threat Categories

Brute-Force 8

Hacking 4

WP Login Brute Force 3

DDoS Attack 1

Web App Attack 1

Technical Details

Brute-force attacks systematically attempt password combinations against authentication systems.

Recommended Mitigations

Implement rate limiting, account lockout policies, multi-factor authentication, and fail2ban.

Behavioral Analysis

Activity Pattern: Consistent Activity

Steady malicious activity over 1 week indicates persistent threat actor operations.

First Observed 15. May 2026

Last Activity 24. May 2026

Recent (7 days) 6 incidents

Reputable Network

This IP is hosted on a network (ASN 152194) with generally good reputation. The ISP CTG Server Limited maintains standard security practices.

The malicious activity may represent an isolated compromised system rather than systematic abuse.

Security Recommendations

Proactive blocking essential. Significant operational risk detected.

Long-term blocking recommended.

Reputation Summary

Threat Level 10/10 Critical

Critical

Activity Frequency 6/10 Moderate

Confidence Score 97% Verified

Confidence History

3. Apr 2026 - 24. May 2026

98% Current

Stable Trend

Date	Categories	Source	Confidence
24. May 2026	Hacking DDoS Attack	Community	75%
23. May 2026	Brute-Force	Community	75%
22. May 2026	Brute-Force	Community	75%
21. May 2026	Brute-Force	Community	75%
20. May 2026	Brute-Force	Community	75%
20. May 2026	Brute-Force	Community	75%
18. May 2026	Brute-Force	Community	75%
17. May 2026	Brute-Force	Community	75%
15. May 2026	Brute-Force	Community	75%
12. Apr 2026	Web App Attack Hacking	Honeypot x2	75%
4. Apr 2026	Hacking	Honeypot	75%
4. Apr 2026	Hacking	Honeypot	75%
4. Apr 2026	WP Login Brute Force	Honeypot	75%
3. Apr 2026	WP Login Brute Force	Honeypot	75%
3. Apr 2026	WP Login Brute Force	Honeypot	75%

Basic Information

IP Address: 137.220.224.39
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class B

Geolocation

Country: JP
ASN: AS152194
ISP: CTG Server Limited

DNS Information

Reverse DNS: None
PTR Record: No
Connection Type: Static

Statistics

Total Reports: 15
First Reported: 3 Apr 2026
Last Reported: 24 May 2026, 08:04

Network Reputation

Analysis of the entire network (ASN) that this IP address belongs to, providing context about the hosting provider and network-wide threat patterns.

Network Identity

ASN: AS152194

Organization: CTG Server Limited

Country:

Network Threat Assessment

1/10

This network appears to be relatively clean with very low threat indicators.

Network Statistics

Total IPs Monitored

2,159

Total Reports

52.7

Reports per IP

Network Context

This IP address belongs to CTG Server Limited (AS152194), which manages 41 IP addresses in our monitoring system. Out of these, 2,159 have been reported for suspicious activities, resulting in a network-wide threat level of 1/10.

✅ Network Status: This network appears to be well-maintained with low threat indicators.

Comparative Analysis

How this IP compares to others in our threat intelligence database

100 %

Global Threat Ranking

This IP is more threatening than 100% of all IPs in our database.

Top 10% Most Dangerous

Global Comparison

Compared against 154,425 reported IPs worldwide

Threat Level 10/10 avg: 4.8 ++

Total Reports 15 avg: 28 -

Network Comparison

Compared against 49 IPs in ASN 152194

Threat Level 10/10 network avg: 6.6 ++

Total Reports 15 network avg: 47 --

Network CTG Server Limited has overall threat level 1/10

Geographic Comparison

Compared against 2,299 IPs in JP

Threat Level 10/10 country avg: 6.1 ++

Total Reports 15 country avg: 12 +

Daily report activity over the last 30 days showing patterns and peaks.

Peak Day 20 May 2026 2 reports

Daily Average 0.3 reports/day

Most Active Friday 4 reports

Evolution of threat level over time based on reported categories and frequency.

Initial Threat 6/10

Current Threat 6/10

Distribution of threat categories reported over time.

Top Threat Categories

Brute-Force 8

Hacking 4

WP Login Brute Force 3

Web App Attack 1

DDoS Attack 1

Activity patterns showing when this IP is most active during the day and week.

Hourly Activity

Peak activity at 22:00 with 3 reports

Weekly Activity

Geographic Threat Distribution

145,884 threat incidents tracked globally • Last 24h: 18,538 Logs

FEED

Top Threat Sources

01

United States US

32,877 22.5%
02

China CN

23,531 16.1%
03

India IN

15,891 10.9%
04

Brazil BR

7,091 4.9%
05

Germany DE

6,161 4.2%
06

Singapore SG

5,769 4%
07

Indonesia ID

4,043 2.8%
08

Netherlands NL

3,774 2.6%
09

Russia RU

3,709 2.5%
10

United Kingdom GB

3,683 2.5%

+40 more countries

THREAT LEVEL

LOW MED HIGH

IPs from the same Autonomous System (AS) network provider.

20 Related IPs

9.2/10 Avg Threat

87% Avg Confidence

20 High Threat

High-risk network: Majority of related IPs are flagged

Extreme Threat

Threat Categories

Technical Details

Recommended Mitigations

Behavioral Analysis

Reputable Network

Security Recommendations

Basic Information

Geolocation

DNS Information

Statistics

Network Reputation

Network Identity

Network Threat Assessment

Network Statistics

Network Context

Global Threat Ranking

Top Threat Categories

Hourly Activity

Weekly Activity

FEED

Top Threat Sources

JSON Report

Firewall Rules

iptables / netfilter

UFW (Ubuntu)

Windows Firewall

Cloudflare

nginx

Apache .htaccess

PDF Report

reportedIP

Parkstraße 19, 80339 München

Consultation

+49-89-215505888

Report a IP

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