210.21.0.0/16
19 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 210.21.0.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.5.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.12.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.18.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.112.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.122.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.125.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.192.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.210.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.213.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.215.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.218.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.223.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.227.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.230.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.232.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.236.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.248.0/24 | China (100%) | 1 | 1 | 1 |
| 210.21.252.0/24 | China (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
210.21.0.0 – 210.21.4.255 | AS17622 | China Unicom Guangzhou network | CN |
210.21.5.0 – 210.21.11.255 | AS17622 | China Unicom Guangzhou network | CN |
210.21.12.0 – 210.21.17.255 | AS17622 | China Unicom Guangzhou network | CN |
210.21.18.0 – 210.21.111.255 | AS17622 | China Unicom Guangzhou network | CN |
210.21.112.0 – 210.21.121.255 | AS17622 | China Unicom Guangzhou network | CN |
210.21.122.0 – 210.21.124.255 | AS17622 | China Unicom Guangzhou network | CN |
210.21.125.0 – 210.21.127.255 | AS17622 | China Unicom Guangzhou network | CN |
210.21.192.0 – 210.21.209.255 | AS17623 | China Unicom Shenzen network | CN |
210.21.210.0 – 210.21.212.255 | AS17623 | China Unicom Shenzen network | CN |
210.21.213.0 – 210.21.214.255 | AS17623 | China Unicom Shenzen network | CN |
210.21.215.0 – 210.21.217.255 | AS17623 | China Unicom Shenzen network | CN |
210.21.218.0 – 210.21.222.255 | AS17623 | China Unicom Shenzen network | CN |
210.21.223.0 – 210.21.226.255 | AS17623 | China Unicom Shenzen network | CN |
210.21.227.0 – 210.21.229.255 | AS17623 | China Unicom Shenzen network | CN |
210.21.230.0 – 210.21.231.255 | AS17623 | China Unicom Shenzen network | CN |
4 more ranges in this block.