123.51.0.0/16
62 assigned ranges in this /16.
/24 breakdown
| Block | Top country | Countries | ASNs | Ranges |
|---|---|---|---|---|
| 123.51.0.0/24 | Australia (100%) | 1 | 1 | 1 |
| 123.51.3.0/24 | Australia (100%) | 1 | 1 | 1 |
| 123.51.13.0/24 | Australia (100%) | 1 | 1 | 1 |
| 123.51.30.0/24 | Australia (100%) | 1 | 1 | 1 |
| 123.51.56.0/24 | Australia (100%) | 1 | 1 | 1 |
| 123.51.66.0/24 | Australia (100%) | 1 | 1 | 1 |
| 123.51.106.0/24 | Australia (100%) | 1 | 1 | 1 |
| 123.51.111.0/24 | Australia (100%) | 1 | 1 | 1 |
| 123.51.112.0/24 | Australia (100%) | 1 | 1 | 1 |
| 123.51.118.0/24 | Australia (100%) | 1 | 1 | 1 |
| 123.51.121.0/24 | Australia (100%) | 1 | 1 | 1 |
| 123.51.128.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.129.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.135.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.137.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.143.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.144.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.146.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.147.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.149.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.152.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.154.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.157.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.159.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.160.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.163.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.164.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.167.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.168.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.169.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.172.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.173.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.174.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.175.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.176.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.179.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.185.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.189.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.191.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.201.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.203.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.207.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.209.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.212.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.214.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.216.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.217.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.219.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.221.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.222.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.223.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.229.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.235.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.238.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.239.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.242.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.244.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.245.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.246.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.247.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.253.0/24 | Taiwan (100%) | 1 | 1 | 1 |
| 123.51.254.0/24 | Taiwan (100%) | 1 | 1 | 1 |
Assigned ranges
| Range | ASN | Org | Country |
|---|---|---|---|
123.51.0.0 – 123.51.2.255 | AS38333 | Symbio Networks Pty Ltd | AU |
123.51.3.0 – 123.51.12.255 | AS38333 | Symbio Networks Pty Ltd | AU |
123.51.13.0 – 123.51.29.255 | AS38333 | Symbio Networks Pty Ltd | AU |
123.51.30.0 – 123.51.55.255 | AS38333 | Symbio Networks Pty Ltd | AU |
123.51.56.0 – 123.51.65.255 | AS38333 | Symbio Networks Pty Ltd | AU |
123.51.66.0 – 123.51.105.255 | AS38333 | Symbio Networks Pty Ltd | AU |
123.51.106.0 – 123.51.110.255 | AS38333 | Symbio Networks Pty Ltd | AU |
123.51.111.0 – 123.51.111.255 | AS38333 | Symbio Networks Pty Ltd | AU |
123.51.112.0 – 123.51.117.255 | AS38333 | Symbio Networks Pty Ltd | AU |
123.51.118.0 – 123.51.120.255 | AS38333 | Symbio Networks Pty Ltd | AU |
123.51.121.0 – 123.51.127.255 | AS38333 | Symbio Networks Pty Ltd | AU |
123.51.128.0 – 123.51.128.255 | AS9919 | New Century InfoComm Tech Co. Ltd. | TW |
123.51.129.0 – 123.51.134.255 | AS4780 | Digital United Inc. | TW |
123.51.135.0 – 123.51.136.255 | AS9919 | New Century InfoComm Tech Co. Ltd. | TW |
123.51.137.0 – 123.51.142.255 | AS9919 | New Century InfoComm Tech Co. Ltd. | TW |
47 more ranges in this block.