21.0.0.0/8
5 announced IP ranges across this /8. Select a /16 block below for its own breakdown and assigned ranges.
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 21.0.0.0/16 | United States (100%) | 1 | 1 | 1 |
| 21.23.0.0/16 | United States (100%) | 1 | 1 | 3 |
| 21.68.0.0/16 | United States (100%) | 1 | 1 | 1 |