Is IP address 45.156.129.191 dangerous?

Yes, 45.156.129.191 is considered dangerous with a threat level of 8/10. It has been reported 15 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 45.156.129.191?

IP address 45.156.129.191 is operated by Sistemas Informaticos, S.A. (ASN 211680) and is geolocated to PT. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 45.156.129.191?

Yes, blocking 45.156.129.191 is strongly recommended. With a threat level of 8/10 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 45.156.129.191?

Our threat assessment for 45.156.129.191 has a confidence score of 77%, based on 15 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

45.156.129.191

IPv4 Public

AS211680

Sistemas Informaticos, S.A.

15 Reports

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PT Location

Sistemas Informaticos, S.... ASN 211680

15 Reports

Mixed Data Source

Significant Threat

IP 45.156.129.191 identified as significant threat (8/10) from 15 events.

Multiple malicious indicators detected. Confidence level: 77%.

More threatening than 90% of monitored IPs

Threat Categories

Web App Attack 5

Port Scan 4

Hacking 4

Bad Web Bot 2

WP Plugin Exploit 2

WP Version Scanning 2

Technical Details

Web application attacks target vulnerabilities like XSS, CSRF, file inclusion, and other OWASP Top 10 issues.

Recommended Mitigations

Deploy web application firewalls, keep applications updated, and conduct regular security audits.

Behavioral Analysis

Activity Pattern: Consistent Activity

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

First Observed 23. September 2026

Last Activity 16. October 2026

Recent (7 days) 3 incidents

Reputable Network

This IP is hosted on a network (ASN 211680) with generally good reputation. The ISP Sistemas Informaticos, S.A. maintains standard security practices.

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

Security Recommendations

Implement rate limiting or temporary blocking measures.

Long-term blocking recommended.

Reputation Summary

Threat Level 8/10 High

Critical

Activity Frequency 3/10 Low

Confidence Score 77% Verified

Confidence History

29. Mar 2026 - 16. Oct 2026

77% Current

Stable Trend

Date	Categories	Source	Confidence
16. Oct 2026 New	Bad Web Bot Web App Attack	Community	75%
15. Oct 2026	Web App Attack	Honeypot	75%
14. Oct 2026	Bad Web Bot Web App Attack	Community	75%
23. Sep 2026	WP Version Scanning WP Plugin Scanning WP Plugin Exploit	Community x2	75%
24. Aug 2026	Port Scan	Honeypot	75%
21. Aug 2026	Hacking	Honeypot	75%
16. Aug 2026	WP Version Scanning WP Plugin Scanning WP Plugin Exploit	Community x2	75%
14. Aug 2026	Port Scan	Honeypot	75%
3. Aug 2026	Hacking	Honeypot	75%
18. Jul 2026	Hacking	Honeypot	75%
17. Jun 2026	Port Scan	Honeypot	75%
13. Jun 2026	Web App Attack	Honeypot	75%
10. Jun 2026	Web App Attack	Honeypot	75%
30. Apr 2026	Hacking	Honeypot	75%
29. Mar 2026	Port Scan	Honeypot	75%

Basic Information

IP Address: 45.156.129.191
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class A

Geolocation

Country: PT
ASN: AS211680
ISP: Sistemas Informaticos, S.A.

DNS Information

Reverse DNS: sh-chi-us-gd17-wk101d.internet-census.org
PTR Record: Yes
Connection Type: Static

Statistics

Total Reports: 15
First Reported: 29 Mar 2026
Last Reported: 16 Oct 2026, 04:15

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: AS211680

Organization: Sistemas Informaticos, S.A.

Country:

Network Threat Assessment

1/10

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

Network Statistics

249

Total IPs Monitored

3,813

Total Reports

15.3

Reports per IP

Network Context

This IP address belongs to Sistemas Informaticos, S.A. (AS211680), which manages 249 IP addresses in our monitoring system. Out of these, 3,813 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

90 %

Global Threat Ranking

This IP is more threatening than 90% of all IPs in our database.

Top 10% Most Dangerous

Global Comparison

Compared against 913,087 reported IPs worldwide

Threat Level 8/10 avg: 6.3 +

Total Reports 15 avg: 9 ++

Network Comparison

Compared against 285 IPs in ASN 211680

Threat Level 8/10 network avg: 9.1 =

Total Reports 15 network avg: 42 --

Network Sistemas Informaticos, S.A. has overall threat level 1/10

Geographic Comparison

Compared against 4,416 IPs in PT

Threat Level 8/10 country avg: 5.8 +

Total Reports 15 country avg: 7 ++

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

Peak Day 23 Sep 2026 1 reports

Daily Average 0.1 reports/day

Most Active Wednesday 4 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

Web App Attack 5

Port Scan 4

Hacking 4

WP Version Scanning 2

WP Plugin Scanning 2

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

Hourly Activity

Peak activity at 00:00 with 2 reports

Weekly Activity

Geographic Threat Distribution

831,287 threat incidents tracked globally • Last 24h: 174,812 Logs

FEED

Top Threat Sources

01

United States US

165,591 19.9%
02

Brazil BR

125,584 15.1%
03

India IN

93,608 11.3%
04

China CN

47,575 5.7%
05

SC SC

29,335 3.5%
06

Germany DE

19,634 2.4%
07

Pakistan PK

19,250 2.3%
08

Argentina AR

18,885 2.3%
09

Netherlands NL

18,717 2.3%
10

Colombia CO

16,127 1.9%

+40 more countries

THREAT LEVEL

LOW MED HIGH

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

20 Related IPs

8.6/10 Avg Threat

85% Avg Confidence

20 High Threat

High-risk network: Majority of related IPs are flagged

Significant 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

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