Is IP address 82.21.4.238 dangerous?

82.21.4.238 presents moderate risk with a threat level of 6/10. While not critically dangerous, it has been associated with activity. Monitoring and conditional blocking is recommended.

Who owns or operates IP address 82.21.4.238?

IP address 82.21.4.238 is operated by UP-NETWORK Sarl (ASN 213929) and is geolocated to CH. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 82.21.4.238?

Blocking 82.21.4.238 is advisable for security-sensitive environments. With a threat level of 6/10, consider implementing conditional blocks or rate limiting.

How accurate is this threat assessment for 82.21.4.238?

Our threat assessment for 82.21.4.238 has a confidence score of 33%, based on 2 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

82.21.4.238

IPv4 Public

AS213929

UP-NETWORK Sarl

2 Reports

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Switzerland Location

UP-NETWORK Sarl ASN 213929

2 Reports

Honeypot Data Source

Cautionary Risk

IP 82.21.4.238 rated 6/10 from 2 security events.

Mixed behavior profile detected. Confidence: 33%.

More threatening than 64% of monitored IPs

Threat Categories

Fraud VoIP 2

Technical Details

VoIP fraud exploits phone systems to make unauthorized calls, often to premium rate numbers for financial gain.

Recommended Mitigations

Implement call authentication, monitor call patterns, and restrict international/premium rate dialing.

Behavioral Analysis

Activity Pattern: Consistent Activity

Steady malicious activity over 3 days indicates persistent threat actor operations.

First Observed 22. October 2026

Last Activity 25. October 2026

Recent (7 days) 2 incidents

Reputable Network

This IP is hosted on a network (ASN 213929) with generally good reputation. The ISP UP-NETWORK Sarl maintains standard security practices.

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

Security Recommendations

Apply balanced security measures based on risk tolerance.

Long-term blocking recommended.

Reputation Summary

Threat Level 6/10 Medium

High

Activity Frequency 1/10 Very Low

Confidence Score 33% Medium Confidence

Confidence History

22. Oct 2026 - 25. Oct 2026

33% Current

Stable Trend

Date	Categories	Source	Confidence
25. Oct 2026	Fraud VoIP	Honeypot	75%
22. Oct 2026	Fraud VoIP	Honeypot	75%

Basic Information

IP Address: 82.21.4.238
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class A

Geolocation

Country: CH
ASN: AS213929
ISP: UP-NETWORK Sarl

DNS Information

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

Statistics

Total Reports: 2
First Reported: 26 Oct 2026
Last Reported: 25 Oct 2026, 00:18

Comparative Analysis

How this IP compares to others in our threat intelligence database

64 %

Global Threat Ranking

This IP is more threatening than 64% of all IPs in our database.

Above Average Threat

Global Comparison

Compared against 1,263,141 reported IPs worldwide

Threat Level 6/10 avg: 6.0 =

Total Reports 2 avg: 7 --

Network Comparison

Compared against 110 IPs in ASN 213929

Threat Level 6/10 network avg: 6.1 =

Total Reports 2 network avg: 1 ++

Geographic Comparison

Compared against 1,704 IPs in CH

Threat Level 6/10 country avg: 6.9 =

Total Reports 2 country avg: 17 --

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

Peak Day 22 Oct 2026 1 reports

Daily Average 0.1 reports/day

Most Active Sunday 1 reports

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

Initial Threat 5/10

Current Threat 5/10

Distribution of threat categories reported over time.

Top Threat Categories

Fraud VoIP 2

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

Hourly Activity

Peak activity at 00:00 with 1 reports

Weekly Activity

Geographic Threat Distribution

1,152,420 threat incidents tracked globally • Last 24h: 31,257 Logs

FEED

Top Threat Sources

01

Brazil BR

257,590 22.4%
02

United States US

195,577 17%
03

India IN

99,483 8.6%
04

China CN

48,822 4.2%
05

Argentina AR

41,671 3.6%
06

SC SC

29,369 2.5%
07

Mexico MX

27,126 2.4%
08

Russia RU

25,990 2.3%
09

Colombia CO

23,937 2.1%
10

Germany DE

21,717 1.9%

+40 more countries

THREAT LEVEL

LOW MED HIGH

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

20 Related IPs

6.3/10 Avg Threat

35% Avg Confidence

5 High Threat

Elevated risk: Multiple related IPs are flagged

Cautionary Risk

Threat Categories

Technical Details

Recommended Mitigations

Behavioral Analysis

Reputable Network

Security Recommendations

Basic Information

Geolocation

DNS Information

Statistics

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

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