210.51.0.0/16
48 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 210.51.0.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.2.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.3.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.8.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.16.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.18.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.19.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.20.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.21.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.23.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.24.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.25.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.28.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.32.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.33.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.34.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.35.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.36.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.39.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.40.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.42.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.43.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.44.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.45.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.46.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.48.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.49.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.58.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.59.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.60.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.61.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.64.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.160.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.162.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.163.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.164.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.175.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.177.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.179.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.182.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.183.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.184.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.185.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.188.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.189.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.192.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.212.0/24 | China (100%) | 1 | 1 | 1 |
| 210.51.216.0/24 | China (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
210.51.0.0 – 210.51.1.255 | AS9929 | CHINA UNICOM Industrial Internet Backbone | CN |
210.51.2.0 – 210.51.2.255 | AS4808 | China Unicom Beijing Province Network | CN |
210.51.3.0 – 210.51.7.255 | AS9929 | CHINA UNICOM Industrial Internet Backbone | CN |
210.51.8.0 – 210.51.15.255 | AS4808 | China Unicom Beijing Province Network | CN |
210.51.16.0 – 210.51.17.255 | AS9929 | CHINA UNICOM Industrial Internet Backbone | CN |
210.51.18.0 – 210.51.18.255 | AS4808 | China Unicom Beijing Province Network | CN |
210.51.19.0 – 210.51.19.255 | AS9929 | CHINA UNICOM Industrial Internet Backbone | CN |
210.51.20.0 – 210.51.20.255 | AS138421 | China Unicom | CN |
210.51.21.0 – 210.51.22.255 | AS9929 | CHINA UNICOM Industrial Internet Backbone | CN |
210.51.23.0 – 210.51.23.255 | AS138421 | China Unicom | CN |
210.51.24.0 – 210.51.24.255 | AS9929 | CHINA UNICOM Industrial Internet Backbone | CN |
210.51.25.0 – 210.51.27.255 | AS138421 | China Unicom | CN |
210.51.28.0 – 210.51.31.255 | AS9929 | CHINA UNICOM Industrial Internet Backbone | CN |
210.51.32.0 – 210.51.32.255 | AS138421 | China Unicom | CN |
210.51.33.0 – 210.51.33.255 | AS9929 | CHINA UNICOM Industrial Internet Backbone | CN |
33 more ranges in this block.