140.228.21.91
Classification: Malicious
140.228.21.91 is a malicious IP address. Reported by 6 threat sources, last seen 2026-09-09. Network: AS174 Internet Utilities NA LLC.
Current activity
- Known attacker — Seen launching attacks over the Internet.
- VPN node — Provides anonymization that can hide an attacker.
Blacklist sightings
| Description | Source | First seen | Last seen | Labels | MITRE ATT&CK |
|---|---|---|---|---|---|
| HTTP Spammer | StopForumSpam.com | 2026-07-29 09:06:56 | 2026-09-09 07:30:32 | attacker malicious-activity | |
| VPN | IPWhois.io | 2026-09-01 12:53:52 | 2026-09-01 12:53:52 | anonymization vpn | |
| Suspicious Host | AbuseIPDB | 2026-01-23 07:57:01 | 2026-04-23 18:52:07 | anomalous-activity | |
| Malicious Host | AbuseIPDB | 2026-03-14 20:14:53 | 2026-03-15 20:12:17 | malicious-activity | |
| Mail Spammer | Blocklist.de | 2026-03-14 08:02:08 | 2026-03-15 08:03:11 | malicious-activity | |
| IMAP Attacker | Blocklist.de | 2026-03-14 07:02:30 | 2026-03-15 07:02:18 | malicious-activity | |
| Bruteforce | Blocklist.net.ua | 2026-03-14 12:44:10 | 2026-03-14 12:44:10 | malicious-activity | |
| HTTP Spammer | Sblam | 2024-04-29 13:35:44 | 2024-04-29 13:35:44 | malicious-activity |
Tags
bot abuse attacker imap pop3 sasl mail spamWhois information
- AS name
- AS174 Internet Utilities NA LLC
- AS registry
- arin
- AS date
- 2021-08-05 00:00:00
- AS CIDR
- 140.228.21.0/24
- CIDR
- 140.228.16.0/20
- Registrant
- Internet Utilities NA LLC
- Address
- 184 East Snowy Egret Dr.
- City
- Montreal
- State
- UT
- Postal code
- H3A 2B7
- Country
- CA — Canada 🇨🇦
- Contact email
- [email protected]
- First indexed
- 2024-04-29 13:35:44
- Last updated
- 2026-09-09 07:30:32
Malicious IPs in the same CIDR
140.228.21.126 140.228.21.82 140.228.21.11 140.228.21.90 140.228.21.117 140.228.21.216 140.228.21.99 140.228.21.227 140.228.21.125 140.228.21.142 140.228.21.91 140.228.21.13 140.228.21.96 140.228.21.116 140.228.21.218 140.228.21.221 140.228.21.97 140.228.21.128