18.212.123.28
Classification: Malicious
18.212.123.28 is a malicious IP address in Washington, US. 5 sightings from 3 threat sources (Mail Spammer, HTTP Spammer), last seen 2026-10-06.
Current activity
- Known attacker — Seen launching attacks over the Internet.
Blacklist sightings
| Description | Source | First seen | Last seen | Labels | MITRE ATT&CK |
|---|---|---|---|---|---|
| Mail Spammer | Barracuda | 2023-10-25 07:59:51 | 2026-10-06 05:50:51 | attacker malicious-activity | |
| HTTP Spammer | Cleantalk.org | 2023-10-25 07:59:51 | 2023-10-25 07:59:51 | malicious-activity | |
| Mail Spammer | Abuseat.org | 2023-10-25 07:59:51 | 2023-10-25 07:59:51 |
Whois information
- AS name
- AS14618 American Registry for Internet Numbers
- AS registry
- arin
- AS date
- 2019-10-07 00:00:00
- AS CIDR
- 18.208.0.0/13
- CIDR
- 18.64.0.0/10, 18.128.0.0/9, 18.32.0.0/11
- Registrant
- American Registry for Internet Numbers
- Address
- 410 Terry Ave N.
- City
- Washington
- State
- DC
- Postal code
- 20511
- Country
- US — United States 🇺🇸
- Contact email
- [email protected], [email protected], [email protected], [email protected]
- First indexed
- 2023-10-25 07:59:51
- Last updated
- 2026-10-06 05:50:52
Malicious IPs in the same CIDR
18.209.48.19 18.212.131.145 18.213.102.186 18.209.171.4 18.214.43.70 18.213.70.100 18.214.238.178 18.215.77.19 18.214.138.148 18.214.186.220 18.214.124.6 18.209.137.234 18.214.251.19 18.215.24.66 18.209.201.119 18.215.49.176 18.209.110.33 18.209.62.120 18.211.190.157 18.211.148.239 18.208.11.93 18.213.240.226 18.210.58.238 18.212.67.163 18.212.123.28