104.21.52.121
Classification: Whitelisted
104.21.52.121 is a whitelisted (trusted) IP address listed by Maltiverse. Reported by Hybrid-Analysis, last seen 2026-09-04.
Current activity
- Content Delivery Network — Belongs to a CDN with many allocated resources.
Blacklist sightings
| Description | Source | First seen | Last seen | Labels | MITRE ATT&CK |
|---|---|---|---|---|---|
| Matched whitelist source: Cloudflare | Maltiverse | 2026-08-01 17:17:26 | 2026-09-04 15:29:41 | benign | |
| Malicious site | Hybrid-Analysis | 2021-02-01 17:45:28 | 2021-02-01 17:45:28 |
Whois information
- AS name
- AS13335 Cloudflare, Inc.
- AS registry
- arin
- AS date
- 2014-03-28 00:00:00
- AS CIDR
- 104.21.48.0/20
- CIDR
- 104.16.0.0/12
- Registrant
- Cloudflare, Inc.
- Address
- 101 Townsend Street
- City
- San Francisco
- State
- CA
- Postal code
- 94102
- Country
- US — United States 🇺🇸
- Contact email
- [email protected], [email protected], [email protected]
- First indexed
- 2021-02-01 17:45:28
- Last updated
- 2026-09-04 15:29:41