38.156.233.21
Classification: Malicious
38.156.233.21 is a malicious IP address. Reported by 4 threat sources, last seen 2026-09-11. Network: AS174 Cogent Communications.
Current activity
- Known attacker — Seen launching attacks over the Internet.
Blacklist sightings
| Description | Source | First seen | Last seen | Labels | MITRE ATT&CK |
|---|---|---|---|---|---|
| Empty reason | Blocklist.net.ua | 2026-09-04 16:12:00 | 2026-09-11 16:10:23 | attacker malicious-activity | |
| DDoS Attacker | Blocklist.net.ua | 2026-08-18 16:01:07 | 2026-09-05 16:10:17 | attacker malicious-activity | |
| HTTP Spammer | StopForumSpam.com | 2025-06-25 05:13:10 | 2025-09-13 16:47:18 | malicious-activity | |
| Proxy | FireHOL | 2023-10-04 05:30:53 | 2024-04-30 06:25:34 | anonymization | |
| Mail Spammer | Abuseat.org | 2023-10-04 05:30:53 | 2023-10-04 05:30:53 |
Tags
anonymization bot abuseWhois information
- AS name
- AS174 Cogent Communications
- AS registry
- arin
- AS date
- 1991-04-16 00:00:00
- AS CIDR
- 38.156.233.0/24
- CIDR
- 38.156.232.0/21
- Registrant
- BITNET DOMINICANA, S.R.L.
- Address
- Calle Prolongacion caracol no. 84, Altos de Chavon
- City
- Santo Domingo
- State
- BOCA CHICA
- Postal code
- 11500
- Country
- US — United States 🇺🇸
- Contact email
- [email protected], [email protected], [email protected]
- First indexed
- 2023-10-04 05:30:53
- Last updated
- 2026-09-11 16:10:23
Malicious IPs in the same CIDR
38.156.233.180 38.156.233.135 38.156.233.51 38.156.233.15 38.156.233.130 38.156.233.134 38.156.233.11 38.156.233.14 38.156.233.182 38.156.233.25 38.156.233.58 38.156.233.40 38.156.233.98 38.156.233.5 38.156.233.6 38.156.233.7 38.156.233.45 38.156.233.37 38.156.233.173 38.156.233.143 38.156.233.21 38.156.233.144