173.239.196.153
Classification: Malicious
173.239.196.153 is a malicious IP address. Reported by 7 threat sources, last seen 2026-09-05. Network: AS206092 Avast Software.
Current activity
- Known attacker — Seen launching attacks over the Internet.
Blacklist sightings
| Description | Source | First seen | Last seen | Labels | MITRE ATT&CK |
|---|---|---|---|---|---|
| DDoS Attacker | Blocklist.net.ua | 2025-12-15 12:02:11 | 2026-09-05 17:05:16 | attacker malicious-activity | |
| Empty reason | Blocklist.net.ua | 2026-09-04 17:08:56 | 2026-09-04 17:08:56 | attacker malicious-activity | |
| Suspicious Host | AbuseIPDB | 2025-01-21 19:45:05 | 2026-03-21 09:00:02 | anomalous-activity | |
| HTTP Spammer | Myip.ms | 2026-02-17 11:02:59 | 2026-02-25 11:01:30 | malicious-activity | |
| VPN | IPWhois.io | 2025-02-11 07:25:24 | 2026-02-19 03:40:54 | anonymization | |
| HTTP Spammer | StopForumSpam.com | 2025-08-04 17:20:58 | 2025-10-06 14:46:41 | malicious-activity | |
| Mail Spammer | Blocklist.de | 2023-02-02 02:18:13 | 2023-02-03 02:28:36 | malicious-activity | |
| IMAP Attacker | Blocklist.de | 2023-02-02 02:13:15 | 2023-02-03 02:23:53 | malicious-activity | |
| Mail Spammer | Abuseat.org | 2023-02-02 02:13:15 | 2023-02-02 02:13:15 |
Tags
mail spam attacker imap pop3 sasl bot abuseWhois information
- AS name
- AS206092 Avast Software
- AS registry
- arin
- AS date
- 2010-05-06 00:00:00
- AS CIDR
- 173.239.196.0/24
- CIDR
- 173.239.192.0/18
- Registrant
- Avast Software
- Address
- 55 Broadway #686
- City
- Singapore
- State
- NY
- Postal code
- 550304
- Country
- SG — Singapore 🇸🇬
- Contact email
- [email protected], [email protected]
- First indexed
- 2023-02-02 02:13:15
- Last updated
- 2026-09-05 17:05:16
Malicious IPs in the same CIDR
173.239.196.98 173.239.196.56 173.239.196.68 173.239.196.40 173.239.196.65 173.239.196.70 173.239.196.55 173.239.196.61 173.239.196.50 173.239.196.48 173.239.196.51 173.239.196.1 173.239.196.5 173.239.196.62 173.239.196.196 173.239.196.188 173.239.196.191 173.239.196.190 173.239.196.189 173.239.196.153 173.239.196.162 173.239.196.172 173.239.196.173 173.239.196.179 173.239.196.140