Summary
| Registry | ARIN |
| Country | US |
| Status | assigned |
| IP Version | IPv4 |
| Allocated | 2014-03-28 |
| Last Updated | 2026-08-26 |
| 104.21.0.0/24 | N/A | 0 | 1 | 2 |
| 104.21.16.0/24 | N/A | 0 | 1 | 1 |
| 104.21.32.0/24 | N/A | 0 | 1 | 2 |
| 104.21.48.0/24 | N/A | 0 | 1 | 1 |
| 104.21.64.0/24 | N/A | 0 | 1 | 2 |
| 104.21.80.0/24 | N/A | 0 | 1 | 1 |
| 104.21.96.0/24 | N/A | 0 | 1 | 2 |
| 104.21.112.0/24 | N/A | 0 | 1 | 1 |
| 104.21.192.0/24 | N/A | 0 | 1 | 2 |
| 104.21.208.0/24 | N/A | 0 | 1 | 1 |
| 104.21.224.0/24 | N/A | 0 | 1 | 1 |