| # | Date | Res | Prefix(es) | From | To | Units | Nets | Tags | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2013-10-18 | IPV4 | ⊂ 31.172.112.0/20 | RIPErrbone UG (haftungsbeschraenkt) | → | RIPE Wavecon GmbH |
4 096 addr | 1 | PA |
| 2 | 2014-02-28 | IPV4 | 31.172.64.0/19 | RIPErrbone UG (haftungsbeschraenkt) | → | RIPEFirst Colo GmbH | 8 192 addr | 1 | PA |
| 3 | 2014-09-08 | IPV4 | ⊂ 31.172.104.0/21 | RIPErrbone UG (haftungsbeschraenkt) | → | RIPEazv Suedholstein Breitband GmbH | 2 048 addr | 1 | PA |