| Serial | Label | Owner key | Owner | Description |
|---|---|---|---|---|
| 1665057615 (2022-10-06) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | HOWARD-DN42 | IX Network Studio Main Network |
| 1538911791 (2018-10-07) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | HOWARD-DN42 | IX Network Studio Main Network |
| 1518602429 (2018-02-14) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | HOWARD-DN42 | IX Network Studio Backbone |
| 1516140077 (2018-01-16) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | HOWARD-DN42 | IX Network Studio Backbone |
| 1512579642 (2017-12-06) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | HOWARD-DN42 | IX Network Studio Backbone |
| 1508979611 (2017-10-26) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | HOWARD-DN42 | IX Network Studio Backbone |
| 1507388447 (2017-10-07) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | ORG-IXNET | IX Network Studio Backbone |
| 1502402479 (2017-08-10) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | ORG-IXNET | IX Network Studio Backbone |
| 1481313798 (2016-12-09) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | ORG-IXNET | IX Network Studio Backbone |
| 1476309662 (2016-10-12) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | ORG-IXNET | IX Network Studio Backbone |
| 1476291610 (2016-10-12) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | ORG-IXNET | IX Network Studio Backbone |
| 1475931608 (2016-10-08) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | ORG-IXNET | IX Network Studio Backbone |
| 1475917219 (2016-10-08) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | ORG-IXNET | IX Network Studio Backbone |
| 1475895653 (2016-10-08) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | ORG-IXNET | IX Network Studio Network Backbone |
| 1475658009 (2016-10-05) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | ORG-IXNET | IX Network Studio Network Backbone |
| 1475650819 (2016-10-05) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | ORG-IXNET | IX Network Studio Network Backbone |
| 1475618411 (2016-10-04) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | ORG-IXNET | IX Network Studio Main Network |
| 1475596814 (2016-10-04) | IPv4 network 172.21.88.128/25 | cb2d7f7227 | ORG-IXNET | IX Network Studio Main Network |