| 81.58.28.16 | 81.58.28.23 | Versatel Internet customer Hoenke Pre Press |
| 81.58.28.24 | 81.58.28.31 | Tele2 Internet customer Publicatiebureau Publiem.. |
| 81.58.28.32 | 81.58.28.39 | Versatel Internet customer Wareco Amsterdam BV |
| 81.58.28.40 | 81.58.28.63 | Odido Netherlands B.V. |
| 81.58.28.64 | 81.58.28.71 | Tele2 Internet customer Succes IT Support |
| 81.58.28.72 | 81.58.28.87 | Odido Netherlands B.V. |
| 81.58.28.88 | 81.58.28.95 | Versatel Internet customer Orcado b.v. |
| 81.58.28.96 | 81.58.28.103 | Tele2 Internet customer Update software Benelux .. |
| 81.58.28.104 | 81.58.28.111 | Versatel Internet customer Zizo Creatie en Litho.. |
| 81.58.28.112 | 81.58.28.135 | Odido Netherlands B.V. |