221.6.34.34

Classification: Malicious

221.6.34.34 is a malicious IP address. Reported by 3 threat sources, last seen 2026-09-02. Network: AS4837 CNCGROUP China169 Backbone.

Current activity

  • Known attacker — Seen launching attacks over the Internet.

Blacklist sightings

Description Source First seen Last seen Labels MITRE ATT&CK
Malicious Host CIArmy 2026-07-07 20:05:18 2026-09-02 20:04:14 attacker malicious-activity
ET CINS Active Threat Intelligence Poor Reputation IP UDP Emerging Threats 2026-07-08 11:28:13 2026-07-28 11:16:32 malicious-activity
ET CINS Active Threat Intelligence Poor Reputation IP TCP Emerging Threats 2026-07-08 11:28:11 2026-07-28 11:16:30 malicious-activity
NTP Open Resolver Rapid7 Open Data 2018-12-03 06:29:21 2018-12-03 06:29:21

Tags

ntp reflection amplification open resolver monlist

Whois information

AS name
AS4837 CNCGROUP China169 Backbone
AS registry
apnic
AS date
2003-01-09 00:00:00
AS CIDR
221.6.0.0/16
CIDR
221.6.0.0/16
Registrant
China Unicom Jiangsu province network China Unicom
Address
No.21,Financial Street Beijing,100033 P.R.China
City
Nanjing
Country
CN — China 🇨🇳
Contact email
[email protected], [email protected]
First indexed
2018-12-03 06:29:21
Last updated
2026-09-02 20:04:14

Malicious IPs in the same CIDR

221.6.34.34 221.6.139.190 221.6.32.34