121.228.0.0/16
88 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 121.228.8.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.11.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.12.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.26.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.29.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.31.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.32.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.40.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.56.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.60.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.62.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.64.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.69.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.75.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.77.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.78.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.81.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.84.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.85.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.86.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.88.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.89.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.91.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.92.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.93.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.94.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.95.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.97.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.98.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.102.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.104.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.106.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.107.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.111.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.112.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.117.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.121.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.123.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.125.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.126.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.130.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.131.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.132.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.135.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.136.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.138.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.139.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.140.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.142.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.144.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.146.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.148.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.151.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.159.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.160.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.162.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.163.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.165.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.168.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.171.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.172.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.173.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.175.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.176.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.185.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.187.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.193.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.194.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.199.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.201.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.213.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.214.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.220.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.222.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.223.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.225.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.231.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.232.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.236.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.238.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.242.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.243.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.245.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.246.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.249.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.251.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.252.0/24 | China (100%) | 1 | 1 | 1 |
| 121.228.254.0/24 | China (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
121.228.8.0 – 121.228.10.255 | AS140292 | China Telecom | CN |
121.228.11.0 – 121.228.11.255 | AS4134 | China Telecom | CN |
121.228.12.0 – 121.228.25.255 | AS140292 | China Telecom | CN |
121.228.26.0 – 121.228.28.255 | AS4134 | China Telecom | CN |
121.228.29.0 – 121.228.30.255 | AS140292 | China Telecom | CN |
121.228.31.0 – 121.228.31.255 | AS4134 | China Telecom | CN |
121.228.32.0 – 121.228.39.255 | AS140292 | China Telecom | CN |
121.228.40.0 – 121.228.55.255 | AS4134 | China Telecom | CN |
121.228.56.0 – 121.228.59.255 | AS140292 | China Telecom | CN |
121.228.60.0 – 121.228.61.255 | AS4134 | China Telecom | CN |
121.228.62.0 – 121.228.63.255 | AS140292 | China Telecom | CN |
121.228.64.0 – 121.228.68.255 | AS4134 | China Telecom | CN |
121.228.69.0 – 121.228.74.255 | AS140292 | China Telecom | CN |
121.228.75.0 – 121.228.76.255 | AS4134 | China Telecom | CN |
121.228.77.0 – 121.228.77.255 | AS140292 | China Telecom | CN |
73 more ranges in this block.