221.133.0.0/16
32 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 221.133.0.0/24 | Vietnam (100%) | 1 | 1 | 1 |
| 221.133.2.0/24 | Vietnam (100%) | 1 | 1 | 1 |
| 221.133.12.0/24 | Vietnam (100%) | 1 | 2 | 2 |
| 221.133.14.0/24 | Vietnam (100%) | 1 | 2 | 2 |
| 221.133.29.0/24 | Vietnam (100%) | 1 | 2 | 2 |
| 221.133.32.0/24 | Malaysia (100%) | 1 | 1 | 1 |
| 221.133.48.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.55.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.56.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.62.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.64.0/24 | Japan (100%) | 1 | 1 | 1 |
| 221.133.128.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.137.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.138.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.142.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.145.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.146.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.148.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.149.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.151.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.153.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.156.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.170.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.174.0/24 | South Korea (100%) | 1 | 1 | 1 |
| 221.133.192.0/24 | United States (100%) | 1 | 1 | 1 |
| 221.133.225.0/24 | China (100%) | 1 | 1 | 1 |
| 221.133.228.0/24 | China (100%) | 1 | 1 | 1 |
| 221.133.235.0/24 | China (100%) | 1 | 1 | 1 |
| 221.133.244.0/24 | China (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
221.133.0.0 – 221.133.1.255 | AS7602 | Sai gon Postel Corporation | VN |
221.133.2.0 – 221.133.12.131 | AS7602 | Sai gon Postel Corporation | VN |
221.133.12.132 – 221.133.12.135 | AS38726 | VTC DIGICOM | VN |
221.133.12.136 – 221.133.14.15 | AS7602 | Sai gon Postel Corporation | VN |
221.133.14.16 – 221.133.14.31 | AS38726 | VTC DIGICOM | VN |
221.133.14.32 – 221.133.29.7 | AS7602 | Sai gon Postel Corporation | VN |
221.133.29.8 – 221.133.29.9 | AS38726 | VTC DIGICOM | VN |
221.133.29.10 – 221.133.31.255 | AS7602 | Sai gon Postel Corporation | VN |
221.133.32.0 – 221.133.47.255 | AS134809 | ViewQwest Sdn. Bhd. | MY |
221.133.48.0 – 221.133.54.255 | AS9712 | INet Technologies Co. Ltd. | KR |
221.133.55.0 – 221.133.55.255 | AS55615 | DOUZONEBIZON | KR |
221.133.56.0 – 221.133.61.255 | AS9712 | INet Technologies Co. Ltd. | KR |
221.133.62.0 – 221.133.63.255 | AS9712 | INet Technologies Co. Ltd. | KR |
221.133.64.0 – 221.133.127.255 | AS17534 | NSK Co. Ltd. | JP |
221.133.128.0 – 221.133.136.255 | AS9689 | SK Broadband Co Ltd | KR |
17 more ranges in this block.