Is IP address 45.156.128.45 dangerous?

Yes, 45.156.128.45 is considered dangerous with a threat level of 8/10. It has been reported 33 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 45.156.128.45?

IP address 45.156.128.45 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 45.156.128.45?

Yes, blocking 45.156.128.45 is strongly recommended. With a threat level of 8/10 and 33 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 45.156.128.45?

Our threat assessment for 45.156.128.45 has a confidence score of 93%, based on 33 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

45.156.128.45

IPv4 Public

AS211680

Sistemas Informaticos, S.A.

33 Reports

PT Location

Sistemas Informaticos, S.... ASN 211680

33 Reports

Mixed Data Source

Substantial Risk

Threat level 8/10 for 45.156.128.45 based on 33 documented incidents.

Consistent suspicious behavior patterns. 93% confidence rating.

More threatening than 84% of monitored IPs

Threat Categories

Hacking 24

Web App Attack 4

Port Scan 1

DDoS Attack 1

WP Cron Abuse 1

Technical Details

General hacking activity includes various intrusion attempts, exploitation of vulnerabilities, and unauthorized access attempts.

Recommended Mitigations

Keep systems patched, implement intrusion detection, and follow security best practices.

Behavioral Analysis

Activity Pattern: Consistent Activity

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

First Observed 10. July 2026

Last Activity 22. July 2026

Recent (7 days) 1 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

Configure firewall rules and intrusion detection alerts.

Long-term blocking recommended.

Reputation Summary

Threat Level 8/10 High

Critical

Activity Frequency 3/10 Low

Confidence Score 89% Verified

Confidence History

12. Feb 2026 - 22. Jul 2026

93% Current

Stable Trend

Date	Categories	Source	Confidence
22. Jul 2026	Web App Attack	Honeypot	75%
18. Jul 2026	Hacking	Honeypot	75%
18. Jul 2026	Hacking	Honeypot	75%
15. Jul 2026	Hacking	Honeypot	75%
14. Jul 2026	Hacking	Honeypot	75%
13. Jul 2026	Hacking	Honeypot	75%
13. Jul 2026	Hacking	Honeypot	75%
13. Jul 2026	Hacking	Honeypot	75%
10. Jul 2026	Hacking	Honeypot	75%
10. Jul 2026	Hacking	Honeypot	75%
23. Jun 2026	Hacking	Honeypot	75%
17. Jun 2026	Hacking	Honeypot	75%
17. Jun 2026	Web App Attack	Honeypot	75%
16. Jun 2026	Hacking	Honeypot	75%
16. Jun 2026	Port Scan	Honeypot	75%
4. Jun 2026	Web App Attack	Honeypot	75%
3. Jun 2026	Hacking	Honeypot	75%
25. May 2026	Hacking	Honeypot	75%
16. May 2026	Hacking	Honeypot	75%
15. May 2026	Hacking	Honeypot	75%
24. Apr 2026	Hacking	Honeypot	75%
24. Apr 2026	Hacking	Honeypot	75%
22. Apr 2026	Hacking	Honeypot	75%
17. Apr 2026	Hacking	Honeypot	75%
5. Apr 2026	Hacking	Honeypot	75%
18. Mar 2026	Hacking	Honeypot	75%
17. Mar 2026	Hacking	Honeypot	75%
11. Mar 2026	Web App Attack	Honeypot	75%
17. Feb 2026	Hacking	Honeypot x2	75%
12. Feb 2026	WP Cron Abuse DDoS Attack	Community	75%

Basic Information

IP Address: 45.156.128.45
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-ams-nl-gd16-wk103a.internet-census.org
PTR Record: Yes
Connection Type: Static

Statistics

Total Reports: 33
First Reported: 22 Jan 2026
Last Reported: 22 Jul 2026, 13:35

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

84 %

Global Threat Ranking

This IP is more threatening than 84% of all IPs in our database.

High Threat Percentile

Global Comparison

Compared against 291,590 reported IPs worldwide

Threat Level 8/10 avg: 5.9 +

Total Reports 33 avg: 18 ++

Network Comparison

Compared against 254 IPs in ASN 211680

Threat Level 8/10 network avg: 9.1 =

Total Reports 33 network avg: 29 +

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

Geographic Comparison

Compared against 832 IPs in PT

Threat Level 8/10 country avg: 7.6 =

Total Reports 33 country avg: 19 ++

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

Peak Day 13 Jul 2026 3 reports

Daily Average 0.3 reports/day

Most Active Wednesday 8 reports

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

Initial Threat 6/10

Current Threat 5/10

Distribution of threat categories reported over time.

Top Threat Categories

Hacking 26

Web App Attack 4

WP Cron Abuse 2

DDoS Attack 2

Port Scan 1

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

Hourly Activity

Peak activity at 13:00 with 3 reports

Weekly Activity

Geographic Threat Distribution

273,565 threat incidents tracked globally • Last 24h: 17,058 Logs

FEED

Top Threat Sources

01

United States US

61,537 22.5%
02

India IN

45,265 16.5%
03

China CN

34,048 12.4%
04

Brazil BR

14,653 5.4%
05

Germany DE

9,819 3.6%
06

Singapore SG

7,937 2.9%
07

Indonesia ID

7,833 2.9%
08

Pakistan PK

7,762 2.8%
09

Russia RU

6,147 2.2%
10

Netherlands NL

5,888 2.2%

+40 more countries

THREAT LEVEL

LOW MED HIGH

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

20 Related IPs

9.8/10 Avg Threat

97% Avg Confidence

20 High Threat

High-risk network: Majority of related IPs are flagged

Substantial Risk

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

Analyzed high-risk IP addresses