Is IP address 197.91.186.139 dangerous?

Yes, 197.91.186.139 is considered dangerous with a threat level of 10/10. It has been reported 5 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 197.91.186.139?

IP address 197.91.186.139 is operated by NTT-DATA-Inc (ASN 20011) and is geolocated to ZA. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 197.91.186.139?

Yes, blocking 197.91.186.139 is strongly recommended. With a threat level of 10/10 and 5 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 197.91.186.139?

Our threat assessment for 197.91.186.139 has a confidence score of 24%, based on 5 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

197.91.186.139

IPv4 Public

AS20011

NTT-DATA-Inc

5 Reports

Is this your IP address? If the cause is fixed, you can request removal. Free of charge, usually decided within 48 hours. Request delisting

ZA Location

NTT-DATA-Inc ASN 20011

5 Reports

Honeypot Data Source

Extreme Threat

IP 197.91.186.139 classified at threat level 10/10 with 5 documented attacks.

Advanced threat indicators confirmed with 24% certainty.

More threatening than 95% of monitored IPs

Threat Categories

Exploited Host 5

Hacking 4

Technical Details

This IP belongs to a compromised system being used as an attack platform without the owner's knowledge.

Recommended Mitigations

Block the IP and consider notifying the hosting provider or system owner about the compromise.

Reputable Network

This IP is hosted on a network (ASN 20011) with generally good reputation. The ISP NTT-DATA-Inc 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.

Continue monitoring for emerging patterns.

Reputation Summary

Threat Level 10/10 Critical

Critical

Activity Frequency 0/10 Inactive

Confidence Score 19% Low Confidence

Confidence History

11. Mar 2026 - 28. Aug 2026

24% Current

Stable Trend

Date	Categories	Source	Confidence
28. Aug 2026	Exploited Host Hacking	Honeypot x2	75%
11. Mar 2026	Exploited Host Hacking	Honeypot x2	75%
11. Mar 2026	Exploited Host	Honeypot	75%
11. Mar 2026	Exploited Host Hacking	Honeypot x2	75%
11. Mar 2026	Exploited Host Hacking	Honeypot x2	75%

Basic Information

IP Address: 197.91.186.139
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class C

Geolocation

Country: ZA
ASN: AS20011
ISP: NTT-DATA-Inc

DNS Information

Reverse DNS: 197-91-186-139.mweb.ipv4.as20011.net
PTR Record: Yes
Connection Type: Dynamic

Statistics

Total Reports: 5
First Reported: 11 Mar 2026
Last Reported: 28 Aug 2026, 19:43

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: AS20011

Organization: NTT-DATA-Inc

Country:

Network Threat Assessment

3/10

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

Network Statistics

Total IPs Monitored

Total Reports

2.8

Reports per IP

Network Context

This IP address belongs to NTT-DATA-Inc (AS20011), which manages 8 IP addresses in our monitoring system. Out of these, 22 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

95 %

Global Threat Ranking

This IP is more threatening than 95% of all IPs in our database.

Top 10% Most Dangerous

Global Comparison

Compared against 837,776 reported IPs worldwide

Threat Level 10/10 avg: 6.3 ++

Total Reports 5 avg: 9 -

Network Comparison

Compared against 274 IPs in ASN 20011

Threat Level 10/10 network avg: 5.5 ++

Total Reports 5 network avg: 2 ++

Network NTT-DATA-Inc has overall threat level 3/10

Geographic Comparison

Compared against 3,726 IPs in ZA

Threat Level 10/10 country avg: 6.1 ++

Total Reports 5 country avg: 2 ++

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

Peak Day 0 reports

Daily Average 0 reports/day

Most Active Wednesday 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

Exploited Host 5

Hacking 4

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

Hourly Activity

Peak activity at 16:00 with 3 reports

Weekly Activity

Geographic Threat Distribution

761,420 threat incidents tracked globally • Last 24h: 30,396 Logs

FEED

Top Threat Sources

01

United States US

149,019 19.6%
02

Brazil BR

112,085 14.7%
03

India IN

88,119 11.6%
04

China CN

46,236 6.1%
05

SC SC

29,255 3.8%
06

Germany DE

18,538 2.4%
07

Netherlands NL

18,093 2.4%
08

Pakistan PK

18,015 2.4%
09

Argentina AR

16,331 2.1%
10

Colombia CO

15,196 2%

+40 more countries

THREAT LEVEL

LOW MED HIGH

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

20 Related IPs

7.4/10 Avg Threat

31% Avg Confidence

19 High Threat

High-risk network: Majority of related IPs are flagged

Extreme Threat

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