| Network Description: | Nippon Telegraph and Telephone Corporation. | |
| Organization: | NTT Network Innovation Laboratories | |
| Country of Network: |  Japan |
| Prefix | Description | Country |
|---|---|---|
| 163.138.160.0/19 | Nippon Telegraph and Telephone Corporation. | |
| 192.47.168.0/23 | Nippon Telegraph and Telephone Corporation | |