| 59.50.184.0 | 59.50.187.255 | ChengMai node Broad Band dialup ports |
| 59.50.188.0 | 59.50.191.255 | LingShui node Broad Band dialup ports |
| 59.50.192.0 | 59.50.192.127 | CHINANET hainan province network China Telecom A.. |
| 59.50.192.128 | 59.50.192.255 | HaiDian node IP DSLAM Network Device Management |
| 59.50.193.0 | 59.50.193.127 | HaiDian node ADSL BRIDGE user segment |
| 59.50.193.128 | 59.50.193.143 | HaiDian node IPOA WAN segment |
| 59.50.193.144 | 59.50.194.255 | CHINANET hainan province network China Telecom A.. |
| 59.50.195.0 | 59.50.195.255 | HaiDian node IP DSLAM Network Device Management |
| 59.50.196.0 | 59.50.199.255 | HaiDian node Broad Band dialup pool-1 |
| 59.50.200.0 | 59.50.207.255 | HaiDian node Broad Band dialup pool-2 |