23.81.228.28
Classification: Malicious
23.81.228.28 is a malicious IP address. Reported by 2 threat sources, last seen 2026-09-11. Network: AS15003 Nobis Technology Group LLC.
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 16:05:57 | 2026-09-11 16:04:14 | attacker malicious-activity | |
| HTTP Spammer | StopForumSpam.com | 2021-05-07 21:46:58 | 2026-09-09 07:05:07 | malicious-activity |
Tags
bot abuseWhois information
- AS name
- AS15003 Nobis Technology Group LLC
- AS registry
- arin
- AS date
- 2013-05-06 00:00:00
- AS CIDR
- 23.81.224.0/19
- CIDR
- 23.80.0.0/15, 23.83.0.0/18, 23.82.0.0/16
- Registrant
- Leaseweb USA, Inc.
- Address
- 9480 Innovation Dr
- City
- Manassas
- State
- VA
- Postal code
- 20109
- Country
- US — United States 🇺🇸
- Contact email
- [email protected], [email protected]
- First indexed
- 2021-05-07 21:46:58
- Last updated
- 2026-09-11 16:04:14
Malicious IPs in the same CIDR
23.81.227.173 23.81.246.185 23.81.230.18 23.81.227.220 23.81.228.54 23.81.228.87 23.81.228.28 23.81.230.98 23.81.227.54 23.81.228.152 23.81.227.5 23.81.232.5 23.81.229.143 23.81.230.93 23.81.232.116 23.81.231.144 23.81.230.165 23.81.229.151 23.81.228.246 23.81.230.100 23.81.230.194 23.81.232.138 23.81.232.195 23.81.229.79 23.81.232.227