| Network Description: | Chiyoda-ku Tokyo | |
| Organization: | NTT Communications (N-BONE) |
| Prefix | Description | Country |
|---|---|---|
| 138.243.0.0/16 | Chiyoda-ku Tokyo | |
| 138.243.128.0/19 | Chiyoda-ku Tokyo | |
| 138.243.160.0/19 | Chiyoda-ku Tokyo | |
| 138.243.192.0/19 | Chiyoda-ku Tokyo | |
| 138.243.224.0/19 | Chiyoda-ku Tokyo |