Is IP address 123.31.29.131 dangerous?

Yes, 123.31.29.131 is considered dangerous with a threat level of 8/10. It has been reported 7 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 123.31.29.131?

IP address 123.31.29.131 is operated by VIETNAM POSTS AND TELECOMMUNICATIONS GROUP (ASN 135905) and is geolocated to VN. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 123.31.29.131?

Yes, blocking 123.31.29.131 is strongly recommended. With a threat level of 8/10 and 7 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 123.31.29.131?

Our threat assessment for 123.31.29.131 has a confidence score of 59%, based on 7 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

123.31.29.131

IPv4 Public

AS135905

VIETNAM POSTS AND TELECOMMUNICATIONS GROUP

7 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

VN Location

VIETNAM POSTS AND TELECOM... ASN 135905

7 Reports

Mixed Data Source

Substantial Risk

Threat level 8/10 for 123.31.29.131 based on 7 documented incidents.

Consistent suspicious behavior patterns. 59% confidence rating.

More threatening than 89% of monitored IPs

Threat Categories

SSH 7

Brute-Force 3

Technical Details

SSH attacks attempt to gain server access through password guessing or exploitation of SSH vulnerabilities.

Recommended Mitigations

Use key-based authentication, change default ports, implement fail2ban, and disable root login.

Behavioral Analysis

Activity Pattern: Consistent Activity

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

First Observed 30. September 2026

Last Activity 12. October 2026

Recent (7 days) 2 incidents

Moderate Network Risk

The network hosting this IP (ASN 135905, operated by VIETNAM POSTS AND TELECOMMUNICATIONS GROUP) shows moderate threat indicators. Some concerning activity has been detected from neighboring addresses.

Consider the network context when assessing this individual IP.

Security Recommendations

Configure firewall rules and intrusion detection alerts.

Long-term blocking recommended.

Reputation Summary

Threat Level 8/10 High

Critical

Activity Frequency 2/10 Very Low

Confidence Score 59% High Confidence

Confidence History

18. Feb 2026 - 12. Oct 2026

59% Current

Stable Trend

Date	Categories	Source	Confidence
12. Oct 2026 New	SSH Brute-Force	Community	75%
9. Oct 2026	SSH Brute-Force	Community	75%
30. Sep 2026	SSH Brute-Force	Community	75%
9. Apr 2026	SSH	Honeypot	75%
3. Mar 2026	SSH	Honeypot	75%
27. Feb 2026	SSH	Honeypot	75%
18. Feb 2026	SSH	Honeypot	75%

Basic Information

IP Address: 123.31.29.131
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class A

Geolocation

Country: VN
ASN: AS135905
ISP: VIETNAM POSTS AND TELECOMMUNICATIONS GROUP

DNS Information

Reverse DNS: static.vnpt.vn
PTR Record: Yes
Connection Type: Static

Statistics

Total Reports: 7
First Reported: 18 Feb 2026
Last Reported: 12 Oct 2026, 19:12

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: AS135905

Organization: VIETNAM POSTS AND TELECOMMUNICATIONS GROUP

Country:

Network Threat Assessment

4/10

This network has low threat indicators with minimal suspicious activity.

Network Statistics

Total IPs Monitored

4,713

Total Reports

49.1

Reports per IP

Network Context

This IP address belongs to VIETNAM POSTS AND TELECOMMUNICATIONS GROUP (AS135905), which manages 96 IP addresses in our monitoring system. Out of these, 4,713 have been reported for suspicious activities, resulting in a network-wide threat level of 4/10.

Network notice: This network shows some suspicious activity patterns. Monitor interactions with IPs from this ASN.

Comparative Analysis

How this IP compares to others in our threat intelligence database

89 %

Global Threat Ranking

This IP is more threatening than 89% of all IPs in our database.

High Threat Percentile

Global Comparison

Compared against 857,486 reported IPs worldwide

Threat Level 8/10 avg: 6.3 +

Total Reports 7 avg: 9 -

Network Comparison

Compared against 325 IPs in ASN 135905

Threat Level 8/10 network avg: 8.1 =

Total Reports 7 network avg: 20 --

Network VIETNAM POSTS AND TELECOMMUNICATIONS GROUP has overall threat level 4/10

Geographic Comparison

Compared against 9,532 IPs in VN

Threat Level 8/10 country avg: 6.6 +

Total Reports 7 country avg: 9 -

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

Peak Day 30 Sep 2026 1 reports

Daily Average 0.1 reports/day

Most Active Wednesday 2 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

SSH 7

Brute-Force 3

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

Hourly Activity

Peak activity at 20:00 with 3 reports

Weekly Activity

Geographic Threat Distribution

779,168 threat incidents tracked globally • Last 24h: 37,033 Logs

FEED

Top Threat Sources

01

United States US

152,196 19.5%
02

Brazil BR

113,320 14.5%
03

India IN

91,108 11.7%
04

China CN

46,942 6%
05

SC SC

29,274 3.8%
06

Germany DE

19,042 2.4%
07

Pakistan PK

18,673 2.4%
08

Netherlands NL

18,422 2.4%
09

Argentina AR

16,789 2.2%
10

Indonesia ID

15,506 2%

+40 more countries

THREAT LEVEL

LOW MED HIGH

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

20 Related IPs

9.6/10 Avg Threat

91% Avg Confidence

20 High Threat

High-risk network: Majority of related IPs are flagged

Substantial Risk

Threat Categories

Technical Details

Recommended Mitigations

Behavioral Analysis

Moderate Network Risk

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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