104.28.155.243
Classification: Malicious
104.28.155.243 is a malicious IP address. Reported by 3 threat sources, last seen 2026-09-09. Network: AS13335 Cloudflare, Inc..
Current activity
- Known attacker — Seen launching attacks over the Internet.
- Content Delivery Network — Belongs to a CDN with many allocated resources.
Blacklist sightings
| Description | Source | First seen | Last seen | Labels | MITRE ATT&CK |
|---|---|---|---|---|---|
| HTTP Spammer | StopForumSpam.com | 2024-07-01 06:49:50 | 2026-09-09 07:23:14 | malicious-activity | |
| Mail Spammer | Blocklist.de | 2026-04-30 08:00:27 | 2026-07-07 12:00:20 | attacker malicious-activity | |
| IMAP Attacker | Blocklist.de | 2026-05-08 07:00:16 | 2026-05-09 07:00:17 | malicious-activity | |
| Suspicious Host | AbuseIPDB | 2025-03-22 00:28:59 | 2026-05-08 06:36:03 | anomalous-activity |
Tags
bot abuse mail spam attacker imap pop3 saslWhois information
- AS name
- AS13335 Cloudflare, Inc.
- AS registry
- arin
- AS date
- 2014-03-28 00:00:00
- AS CIDR
- 104.28.155.0/24
- CIDR
- 104.16.0.0/12
- Registrant
- Cloudflare, Inc.
- Address
- 101 Townsend Street
- City
- Amsterdam
- State
- CA
- Postal code
- 1012 JS
- Country
- NL — Netherlands 🇳🇱
- Contact email
- [email protected], [email protected], [email protected]
- First indexed
- 2024-07-01 06:49:50
- Last updated
- 2026-09-09 07:23:14
Malicious IPs in the same CIDR
104.28.155.81 104.28.155.243 104.28.155.217 104.28.155.216 104.28.155.219