| Country | Czech Republic |
| ASN | AS24971 |
| Description | MASTER-NET-1 |
| Organisation | Master Internet s.r.o. ORG-MIs2-RIPE |
| IP Range | 81.31.32.0 — 81.31.47.255 |
| Num of IPs | 4096 |
| ASN | AS24971 |
| Name | MASTER-AS |
| Description | Czech Republic / www.master.cz e-mail: noc@master.cz |
| Organisation | Master Internet s.r.o. ORG-MIs2-RIPE |
| Range | 81.31.32.0 — 81.31.47.255 |
| CIDR | 81.31.32.0/20 |
