| Serial | Label | Owner key | Owner | Description |
|---|---|---|---|---|
| 1424635224 (2015-02-22) | IPv4 network 172.23.60.0/24 | cb2d7f7227 | NULLX8-DN42 | |
| 1454972410 (2016-02-08) | IPv4 network 172.23.60.0/24 | cb2d7f7227 | NULLX8-DN42 | |
| 1456660871 (2016-02-28) | IPv4 network 172.23.60.0/24 | cb2d7f7227 | NULLX8-DN42 |