104.21.43.66
Classification: Whitelisted
104.21.43.66 is a whitelisted (trusted) IP address. Reported by 3 threat sources, last seen 2026-07-19. Network: AS13335 Cloudflare, Inc..
Current activity
- Content Delivery Network — Belongs to a CDN with many allocated resources.
- Hosting provider — Shared hosting infrastructure.
Blacklist sightings
| Description | Source | First seen | Last seen | Labels | MITRE ATT&CK |
|---|---|---|---|---|---|
| Matched whitelist source: Cloudflare | Maltiverse | 2026-07-19 09:16:27 | 2026-07-19 09:16:27 | benign | |
| Generic.Malware | Hybrid-Analysis | 2021-03-29 00:15:57 | 2021-03-29 00:15:59 | ||
| ING Groep phishing | Antiphishing.com.ar | 2021-02-15 14:57:36 | 2021-02-15 14:57:36 |
Tags
phishingWhois information
- AS name
- AS13335 Cloudflare, Inc.
- AS registry
- arin
- AS date
- 2014-03-28 00:00:00
- AS CIDR
- 104.21.32.0/20
- 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
- 2021-02-15 14:57:36
- Last updated
- 2026-07-19 09:16:27