| 81.58.12.32 | 81.58.12.39 | Versatel Internet customer Cartron B.V. |
| 81.58.12.40 | 81.58.12.47 | Tele2 Internet customer M.H. van Leeuwen |
| 81.58.12.48 | 81.58.12.63 | Tele2 lir-partitioned range for NIS |
| 81.58.12.64 | 81.58.12.71 | Tele2 Internet customer Edo Huisman (1812 RK) |
| 81.58.12.72 | 81.58.12.79 | Tele2 Internet customer Tandartsenpraktijk Vinke.. |
| 81.58.12.80 | 81.58.12.111 | Tele2 lir-partitioned range for NIS |
| 81.58.12.112 | 81.58.12.119 | Tele2 Internet customer Red Services |
| 81.58.12.120 | 81.58.12.151 | Tele2 lir-partitioned range for NIS |
| 81.58.12.152 | 81.58.12.159 | Tele2 Internet customer Inaxtion Uitzendgroep |
| 81.58.12.160 | 81.58.12.167 | Tele2 Internet customer Grobouma BV |