Is IP address 101.99.37.80 dangerous?

Yes, 101.99.37.80 is considered dangerous with a threat level of 8/10. It has been reported 18 times for malicious activities including . We recommend blocking this IP address.

Who owns or operates IP address 101.99.37.80?

IP address 101.99.37.80 is operated by CMC Telecom Infrastructure Company (ASN 45903) and is geolocated to VN. This information is derived from public WHOIS and geolocation databases.

Should I block IP address 101.99.37.80?

Yes, blocking 101.99.37.80 is strongly recommended. With a threat level of 8/10 and 18 security reports, this IP poses significant risk. Implement firewall rules to block incoming and outgoing traffic.

How accurate is this threat assessment for 101.99.37.80?

Our threat assessment for 101.99.37.80 has a confidence score of 90%, based on 18 independent reports from multiple independent sources. Higher confidence scores indicate more reliable assessments.

IP Address

101.99.37.80

IPv4 Public

AS45903

CMC Telecom Infrastructure Company

18 Reports

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Vietnam Location

CMC Telecom Infrastructur... ASN 45903

18 Reports

Mixed Data Source

Elevated Risk

Elevated threat level 8/10 for IP 101.99.37.80 from 18 reported incidents.

Behavioral profile indicates cyber threat activity with 90% confidence.

More threatening than 90% of monitored IPs

Threat Categories

Brute-Force 12

SSH 5

Hacking 4

WP Login Brute Force 3

WP User Enumeration 2

Exploited Host 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 3 weeks indicates persistent threat actor operations.

First Observed 12. September 2026

Last Activity 6. October 2026

Recent (7 days) 5 incidents

Reputable Network

This IP is hosted on a network (ASN 45903) with generally good reputation. The ISP CMC Telecom Infrastructure Company 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 8/10 High

Critical

Activity Frequency 4/10 Low

Confidence Score 89% Verified

Confidence History

7. Sep 2026 - 6. Oct 2026

90% Current

Stable Trend

Date	Categories	Source	Confidence
6. Oct 2026	Brute-Force	Community	75%
4. Oct 2026	Brute-Force	Community	75%
3. Oct 2026	WP Login Brute Force Brute-Force	Community	75%
2. Oct 2026	WP Login Brute Force Brute-Force	Community	75%
2. Oct 2026	WP Login Brute Force Brute-Force	Community	75%
28. Sep 2026	SSH Brute-Force	Community	75%
27. Sep 2026	SSH Brute-Force	Community	75%
26. Sep 2026	SSH Brute-Force	Community	75%
24. Sep 2026	WP User Enumeration	Community	75%
22. Sep 2026	Brute-Force	Community	75%
18. Sep 2026	WP User Enumeration	Community	75%
16. Sep 2026	Brute-Force SSH	Honeypot	75%
12. Sep 2026	Hacking Exploited Host	Honeypot x2	75%
12. Sep 2026	Hacking SSH	Honeypot x2	75%
7. Sep 2026	Brute-Force	Community	75%
7. Sep 2026	Brute-Force	Community	75%
7. Sep 2026	Hacking	Honeypot	75%
7. Sep 2026	Hacking	Honeypot	75%

Basic Information

IP Address: 101.99.37.80
IP Version: IPv4
Network Type: Public
Tor Network: No
Network Class: Class A

Geolocation

Country: VN
ASN: AS45903
ISP: CMC Telecom Infrastructure Company

DNS Information

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

Statistics

Total Reports: 18
First Reported: 7 Sep 2026
Last Reported: 6 Oct 2026, 11:57

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: AS45903

Organization: CMC Telecom Infrastructure Company

Country:

Network Threat Assessment

2/10

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

Network Statistics

Total IPs Monitored

480

Total Reports

Reports per IP

Network Context

This IP address belongs to CMC Telecom Infrastructure Company (AS45903), which manages 16 IP addresses in our monitoring system. Out of these, 480 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

90 %

Global Threat Ranking

This IP is more threatening than 90% of all IPs in our database.

Top 10% Most Dangerous

Global Comparison

Compared against 833,163 reported IPs worldwide

Threat Level 8/10 avg: 6.3 +

Total Reports 18 avg: 9 ++

Network Comparison

Compared against 49 IPs in ASN 45903

Threat Level 8/10 network avg: 7.5 =

Total Reports 18 network avg: 14 +

Network CMC Telecom Infrastructure Company has overall threat level 2/10

Geographic Comparison

Compared against 9,171 IPs in VN

Threat Level 8/10 country avg: 6.7 +

Total Reports 18 country avg: 9 ++

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

Peak Day 12 Sep 2026 2 reports

Daily Average 0.5 reports/day

Most Active Monday 5 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

Brute-Force 12

SSH 5

Hacking 4

WP Login Brute Force 3

WP User Enumeration 2

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

Hourly Activity

Peak activity at 17:00 with 3 reports

Weekly Activity

Geographic Threat Distribution

757,427 threat incidents tracked globally • Last 24h: 30,605 Logs

FEED

Top Threat Sources

01

United States US

148,250 19.6%
02

Brazil BR

111,874 14.8%
03

India IN

87,197 11.5%
04

China CN

46,083 6.1%
05

SC SC

29,253 3.9%
06

Germany DE

18,439 2.4%
07

Netherlands NL

17,997 2.4%
08

Pakistan PK

17,824 2.4%
09

Argentina AR

16,271 2.1%
10

Colombia CO

15,171 2%

+40 more countries

THREAT LEVEL

LOW MED HIGH

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

20 Related IPs

7.3/10 Avg Threat

32% Avg Confidence

16 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

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