Is IP address 172.59.21.191 dangerous?

Yes, 172.59.21.191 is considered dangerous with a threat level of 7/10. It has been reported 1 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 172.59.21.191?

IP address 172.59.21.191 is operated by T-Mobile USA, Inc. (ASN 21928) and is geolocated to PR. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 172.59.21.191?

Yes, blocking 172.59.21.191 is strongly recommended. With a threat level of 7/10 and 1 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 172.59.21.191?

Our threat assessment for 172.59.21.191 has a confidence score of 26%, based on 1 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

172.59.21.191

IPv4 Public

AS21928

T-Mobile USA, Inc.

1 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

Puerto Rico Location

T-Mobile USA, Inc. ASN 21928

1 Reports

Honeypot Data Source

Elevated Risk

Elevated threat level 7/10 for IP 172.59.21.191 from 1 reported incidents.

Behavioral profile indicates cyber threat activity with 26% confidence.

More threatening than 82% of monitored IPs

Threat Categories

IoT Targeted 1

Technical Details

IoT-targeted attacks exploit weak security in smart devices, cameras, routers, and other connected devices.

Recommended Mitigations

Segment IoT networks, update device firmware, change default credentials, and disable UPnP.

Behavioral Analysis

Activity Pattern: Consistent Activity

Steady malicious activity over less than a day indicates persistent threat actor operations.

First Observed 22. September 2026

Last Activity 22. September 2026

Recent (7 days) 0 incidents

Reputable Network

This IP is hosted on a network (ASN 21928) with generally good reputation. The ISP T-Mobile USA, Inc. maintains standard security practices.

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

Security Recommendations

Enhanced monitoring recommended. Review logs for interactions with this IP.

Long-term blocking recommended.

Reputation Summary

Threat Level 7/10 High

High

Activity Frequency 0/10 Inactive

Confidence Score 26% Medium Confidence

Date	Categories	Source	Confidence
22. Sep 2026	IoT Targeted	Honeypot	75%

Basic Information

IP Address: 172.59.21.191
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class B

Geolocation

Country: PR
ASN: AS21928
ISP: T-Mobile USA, Inc.

DNS Information

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

Statistics

Total Reports: 1
First Reported: 22 Sep 2026
Last Reported: 22 Sep 2026, 23:11

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: AS21928

Organization: T-Mobile USA, Inc.

Country:

Network Threat Assessment

2/10

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

Network Statistics

Total IPs Monitored

Total Reports

2.2

Reports per IP

Network Context

This IP address belongs to T-Mobile USA, Inc. (AS21928), which manages 25 IP addresses in our monitoring system. Out of these, 55 have been reported for suspicious activities, resulting in a network-wide threat level of 2/10.

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

82 %

Global Threat Ranking

This IP is more threatening than 82% of all IPs in our database.

High Threat Percentile

Global Comparison

Compared against 815,106 reported IPs worldwide

Threat Level 7/10 avg: 6.3 =

Total Reports 1 avg: 9 --

Network Comparison

Compared against 695 IPs in ASN 21928

Threat Level 7/10 network avg: 6.2 =

Total Reports 1 network avg: 1 -

Network T-Mobile USA, Inc. has overall threat level 2/10

Geographic Comparison

Compared against 470 IPs in PR

Threat Level 7/10 country avg: 5.3 +

Total Reports 1 country avg: 2 -

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

Peak Day 22 Sep 2026 1 reports

Daily Average 0 reports/day

Most Active Tuesday 1 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

IoT Targeted 1

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

Hourly Activity

Peak activity at 23:00 with 1 reports

Weekly Activity

Geographic Threat Distribution

740,980 threat incidents tracked globally • Last 24h: 38,979 Logs

FEED

Top Threat Sources

01

United States US

144,876 19.6%
02

Brazil BR

111,156 15%
03

India IN

83,548 11.3%
04

China CN

45,269 6.1%
05

SC SC

29,243 3.9%
06

Germany DE

17,793 2.4%
07

Netherlands NL

17,607 2.4%
08

Pakistan PK

17,012 2.3%
09

Argentina AR

16,219 2.2%
10

Colombia CO

15,152 2%

+40 more countries

THREAT LEVEL

LOW MED HIGH

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

20 Related IPs

8.8/10 Avg Threat

43% Avg Confidence

19 High Threat

High-risk network: Majority of related IPs are flagged

Elevated 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