Gratuit · Réseau et infrastructure IT
Convertisseur de plage IP en CIDR.
Transformez plages, listes d’adresses et blocs qui se chevauchent en un minimum de blocs CIDR, avec exclusions et super-réseau englobant.
- IPv4 addresses covered
- 644
- IPv6 addresses covered
- 1208925819614629174706176
- Smallest single IPv4 supernet
- 0.0.0.0/0 Covers everything but may include extra addresses
- Smallest single IPv6 supernet
- 2001:db8::/48
CIDR list
10.0.0.0/23
192.168.1.0/25
192.168.1.128/31
192.168.1.130/32
203.0.113.7/32
2001:db8::/48Blocks
| CIDR block | First address | Last address | Addresses |
|---|---|---|---|
| 10.0.0.0/23 | 10.0.0.0 | 10.0.1.255 | 512 |
| 192.168.1.0/25 | 192.168.1.0 | 192.168.1.127 | 128 |
| 192.168.1.128/31 | 192.168.1.128 | 192.168.1.129 | 2 |
| 192.168.1.130/32 | 192.168.1.130 | 192.168.1.130 | 1 |
| 203.0.113.7/32 | 203.0.113.7 | 203.0.113.7 | 1 |
| 2001:db8::/48 | 2001:db8:: | 2001:db8:0:ffff:ffff:ffff:ffff:ffff | 2^80 (1208925819614629174706176) |
- Overlapping and adjacent entries are merged first, then each range is split into the fewest aligned blocks.
- Comments after # are ignored. Commas or semicolons can separate several entries on one line.
Comment utiliser cet outil: Convertisseur de plage IP en CIDR
Saisissez ou sélectionnez vos données. Réglez les options, générez le résultat puis vérifiez-le avant de le copier ou de le télécharger.
Limites et formats acceptés
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Notes techniques en anglais
Up to 5,000 lines; IPv4 and IPv6 can be mixed. The single supernet may include addresses that were not in the input. Everything is calculated in your browser; nothing is sent or probed on the network.
Entries are converted to start–end ranges, merged when they overlap or touch, reduced by the exclusions, and each remaining range is cut into the largest aligned power-of-two blocks.
192.168.1.0 – 192.168.1.130 becomes 192.168.1.0/25, 192.168.1.128/31 and 192.168.1.130/32; 10.0.0.0/25 and 10.0.0.128/25 merge into 10.0.0.0/24.