Is IP address 140.206.83.106 dangerous?

Yes, 140.206.83.106 is considered dangerous with a threat level of 8/10. It has been reported 11 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 140.206.83.106?

IP address 140.206.83.106 is operated by China Unicom Shanghai network (ASN 17621) and is geolocated to CN. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 140.206.83.106?

Yes, blocking 140.206.83.106 is strongly recommended. With a threat level of 8/10 and 11 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 140.206.83.106?

Our threat assessment for 140.206.83.106 has a confidence score of 62%, based on 11 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

140.206.83.106

IPv4 Public

AS17621

China Unicom Shanghai network

11 Reports

CN Location

China Unicom Shanghai net... ASN 17621

11 Reports

Honeypot Data Source

Substantial Risk

Threat level 8/10 for 140.206.83.106 based on 11 documented incidents.

Consistent suspicious behavior patterns. 62% confidence rating.

More threatening than 78% of monitored IPs

Threat Categories

SSH 7

Technical Details

SSH attacks attempt to gain server access through password guessing or exploitation of SSH vulnerabilities.

Recommended Mitigations

Use key-based authentication, change default ports, implement fail2ban, and disable root login.

Reputable Network

This IP is hosted on a network (ASN 17621) with generally good reputation. The ISP China Unicom Shanghai network maintains standard security practices.

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

Security Recommendations

Configure firewall rules and intrusion detection alerts.

Continue monitoring for emerging patterns.

Reputation Summary

Threat Level 8/10 High

Critical

Activity Frequency 7/10 High

Confidence Score 36% Medium Confidence

Confidence History

22. Feb 2026 - 26. Feb 2026

62% Current

Stable Trend

Date	Categories	Source	Confidence
26. Feb 2026	SSH	Honeypot	75%
25. Feb 2026	SSH	Honeypot	75%
25. Feb 2026	SSH	Honeypot	75%
24. Feb 2026	SSH	Honeypot	75%
24. Feb 2026	SSH	Honeypot	75%
23. Feb 2026	SSH	Honeypot	75%
22. Feb 2026	SSH	Honeypot	75%

Basic Information

IP Address: 140.206.83.106
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class B

Geolocation

Country: CN
ASN: AS17621
ISP: China Unicom Shanghai network

DNS Information

Reverse DNS: mail.spectrum-sys.cn
PTR Record: Yes
Connection Type: Static

Statistics

Total Reports: 11
First Reported: 22 Feb 2026
Last Reported: 26 Feb 2026, 07:06

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: AS17621

Organization: China Unicom Shanghai network

Country:

Network Threat Assessment

3/10

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

Network Statistics

205

Total IPs Monitored

712

Total Reports

3.5

Reports per IP

Network Context

This IP address belongs to China Unicom Shanghai network (AS17621), which manages 205 IP addresses in our monitoring system. Out of these, 712 have been reported for suspicious activities, resulting in a network-wide threat level of 3/10.

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

78 %

Global Threat Ranking

This IP is more threatening than 78% of all IPs in our database.

High Threat Percentile

Global Comparison

Compared against 199,366 reported IPs worldwide

Threat Level 8/10 avg: 5.3 ++

Total Reports 11 avg: 23 --

Network Comparison

Compared against 216 IPs in ASN 17621

Threat Level 8/10 network avg: 3.9 ++

Total Reports 11 network avg: 4 ++

Network China Unicom Shanghai network has overall threat level 3/10

Geographic Comparison

Compared against 26,021 IPs in CN

Threat Level 8/10 country avg: 3.7 ++

Total Reports 11 country avg: 6 ++

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

Peak Day 0 reports

Daily Average 0 reports/day

Most Active Tuesday 2 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

SSH 7

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

Hourly Activity

Peak activity at 15:00 with 2 reports

Weekly Activity

Geographic Threat Distribution

187,017 threat incidents tracked globally • Last 24h: 18,967 Logs

FEED

Top Threat Sources

01

United States US

38,426 20.5%
02

India IN

28,977 15.5%
03

China CN THIS IP

26,016 13.9%
04

Brazil BR

10,249 5.5%
05

Germany DE

7,139 3.8%
06

Singapore SG

6,475 3.5%
07

Indonesia ID

5,533 3%
08

Russia RU

4,701 2.5%
09

Pakistan PK

4,647 2.5%
10

Netherlands NL

4,355 2.3%

+40 more countries

THREAT LEVEL

LOW MED HIGH

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

20 Related IPs

9.3/10 Avg Threat

71% Avg Confidence

20 High Threat

High-risk network: Majority of related IPs are flagged

Substantial Risk

Threat Categories

Technical Details

Recommended Mitigations

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

Analyzed high-risk IP addresses

reportedIP

Parkstraße 19, 80339 München

Consultation

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