Is IP address 221.121.1.165 dangerous?

Yes, 221.121.1.165 is considered dangerous with a threat level of 7/10. It has been reported 2 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 221.121.1.165?

IP address 221.121.1.165 is operated by Sai gon Postel Corporation (ASN 7602) and is geolocated to VN. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 221.121.1.165?

Yes, blocking 221.121.1.165 is strongly recommended. With a threat level of 7/10 and 2 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 221.121.1.165?

Our threat assessment for 221.121.1.165 has a confidence score of 26%, based on 2 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

221.121.1.165

IPv4 Public

AS7602

Sai gon Postel Corporation

2 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

Vietnam Location

Sai gon Postel Corporatio... ASN 7602

2 Reports

Honeypot Data Source

Notable Threat

IP 221.121.1.165 rated 7/10 from 2 verified reports.

Multiple security incidents attributed to this IP. Confidence: 26%.

More threatening than 82% of monitored IPs

Threat Categories

Brute-Force 1

Hacking 1

Technical Details

Brute-force attacks systematically attempt password combinations against authentication systems.

Recommended Mitigations

Implement rate limiting, account lockout policies, multi-factor authentication, and fail2ban.

Behavioral Analysis

Activity Pattern: Consistent Activity

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

First Observed 6. September 2026

Last Activity 7. September 2026

Recent (7 days) 0 incidents

Reputable Network

This IP is hosted on a network (ASN 7602) with generally good reputation. The ISP Sai gon Postel Corporation maintains standard security practices.

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

Security Recommendations

Implement appropriate security controls.

Long-term blocking recommended.

Reputation Summary

Threat Level 7/10 High

High

Activity Frequency 0/10 Inactive

Confidence Score 26% Medium Confidence

Confidence History

6. Sep 2026 - 7. Sep 2026

26% Current

Stable Trend

Date	Categories	Source	Confidence
7. Sep 2026	Brute-Force	Honeypot	75%
6. Sep 2026	Hacking	Honeypot	75%

Basic Information

IP Address: 221.121.1.165
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class C

Geolocation

Country: VN
ASN: AS7602
ISP: Sai gon Postel Corporation

DNS Information

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

Statistics

Total Reports: 2
First Reported: 6 Sep 2026
Last Reported: 7 Sep 2026, 15:45

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: AS7602

Organization: Sai gon Postel Corporation

Country:

Network Threat Assessment

2/10

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

Network Statistics

Total IPs Monitored

495

Total Reports

23.6

Reports per IP

Network Context

This IP address belongs to Sai gon Postel Corporation (AS7602), which manages 21 IP addresses in our monitoring system. Out of these, 495 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 807,349 reported IPs worldwide

Threat Level 7/10 avg: 6.3 =

Total Reports 2 avg: 9 --

Network Comparison

Compared against 78 IPs in ASN 7602

Threat Level 7/10 network avg: 7.9 =

Total Reports 2 network avg: 11 --

Network Sai gon Postel Corporation has overall threat level 2/10

Geographic Comparison

Compared against 8,832 IPs in VN

Threat Level 7/10 country avg: 6.6 =

Total Reports 2 country avg: 9 --

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

Peak Day 6 Sep 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 6/10

Current Threat 6/10

Distribution of threat categories reported over time.

Top Threat Categories

Hacking 1

Brute-Force 1

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

Hourly Activity

Peak activity at 15:00 with 1 reports

Weekly Activity

Geographic Threat Distribution

734,114 threat incidents tracked globally • Last 24h: 28,054 Logs

FEED

Top Threat Sources

01

United States US

143,446 19.5%
02

Brazil BR

110,780 15.1%
03

India IN

82,182 11.2%
04

China CN

44,796 6.1%
05

SC SC

29,234 4%
06

Germany DE

17,510 2.4%
07

Netherlands NL

17,489 2.4%
08

Pakistan PK

16,657 2.3%
09

Argentina AR

16,191 2.2%
10

Colombia CO

15,136 2.1%

+40 more countries

THREAT LEVEL

LOW MED HIGH

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

20 Related IPs

7.8/10 Avg Threat

40% Avg Confidence

16 High Threat

High-risk network: Majority of related IPs are flagged

Notable 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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