Kostenlos · Netzwerk & IT-Infrastruktur
Subnetzmasken-Rechner.
Rechnen Sie zwischen CIDR-Präfix, Subnetzmaske und Wildcard-Maske um, finden Sie die kleinste Maske für eine Hostanzahl und sehen Sie die Tabelle /0–/32.
- Subnet mask
- 255.255.255.192
- Wildcard mask
- 0.0.0.63
- CIDR prefix
- /26
- Mask in hexadecimal
- 0xFFFFFFC0
- Mask in binary
- 11111111.11111111.11111111.11000000
- Total addresses
- 64
- Usable hosts
- 62 Total minus network and broadcast
- Subnets of this size in a /24
- 4
IPv4 subnet mask reference
| Prefix | Subnet mask | Wildcard | Addresses | Usable hosts |
|---|---|---|---|---|
| /0 | 0.0.0.0 | 255.255.255.255 | 4,294,967,296 | 4,294,967,294 |
| /1 | 128.0.0.0 | 127.255.255.255 | 2,147,483,648 | 2,147,483,646 |
| /2 | 192.0.0.0 | 63.255.255.255 | 1,073,741,824 | 1,073,741,822 |
| /3 | 224.0.0.0 | 31.255.255.255 | 536,870,912 | 536,870,910 |
| /4 | 240.0.0.0 | 15.255.255.255 | 268,435,456 | 268,435,454 |
| /5 | 248.0.0.0 | 7.255.255.255 | 134,217,728 | 134,217,726 |
| /6 | 252.0.0.0 | 3.255.255.255 | 67,108,864 | 67,108,862 |
| /7 | 254.0.0.0 | 1.255.255.255 | 33,554,432 | 33,554,430 |
| /8 | 255.0.0.0 | 0.255.255.255 | 16,777,216 | 16,777,214 |
| /9 | 255.128.0.0 | 0.127.255.255 | 8,388,608 | 8,388,606 |
| /10 | 255.192.0.0 | 0.63.255.255 | 4,194,304 | 4,194,302 |
| /11 | 255.224.0.0 | 0.31.255.255 | 2,097,152 | 2,097,150 |
| /12 | 255.240.0.0 | 0.15.255.255 | 1,048,576 | 1,048,574 |
| /13 | 255.248.0.0 | 0.7.255.255 | 524,288 | 524,286 |
| /14 | 255.252.0.0 | 0.3.255.255 | 262,144 | 262,142 |
| /15 | 255.254.0.0 | 0.1.255.255 | 131,072 | 131,070 |
| /16 | 255.255.0.0 | 0.0.255.255 | 65,536 | 65,534 |
| /17 | 255.255.128.0 | 0.0.127.255 | 32,768 | 32,766 |
| /18 | 255.255.192.0 | 0.0.63.255 | 16,384 | 16,382 |
| /19 | 255.255.224.0 | 0.0.31.255 | 8,192 | 8,190 |
| /20 | 255.255.240.0 | 0.0.15.255 | 4,096 | 4,094 |
| /21 | 255.255.248.0 | 0.0.7.255 | 2,048 | 2,046 |
| /22 | 255.255.252.0 | 0.0.3.255 | 1,024 | 1,022 |
| /23 | 255.255.254.0 | 0.0.1.255 | 512 | 510 |
| /24 | 255.255.255.0 | 0.0.0.255 | 256 | 254 |
| /25 | 255.255.255.128 | 0.0.0.127 | 128 | 126 |
| /26 | 255.255.255.192 | 0.0.0.63 | 64 | 62 |
| /27 | 255.255.255.224 | 0.0.0.31 | 32 | 30 |
| /28 | 255.255.255.240 | 0.0.0.15 | 16 | 14 |
| /29 | 255.255.255.248 | 0.0.0.7 | 8 | 6 |
| /30 | 255.255.255.252 | 0.0.0.3 | 4 | 2 |
| /31 | 255.255.255.254 | 0.0.0.1 | 2 | 2 (RFC 3021) |
| /32 | 255.255.255.255 | 0.0.0.0 | 1 | 1 |
- Read as a subnet mask.
- Cisco ACLs and OSPF network statements use the wildcard mask.
So verwenden Sie das Tool: Subnetzmasken-Rechner
Geben Sie Daten ein oder wählen Sie eine Datei. Passen Sie die Einstellungen an, erstellen Sie das Ergebnis und prüfen Sie es vor dem Kopieren oder Herunterladen.
Grenzen und unterstützte Formate
Ihre Eingaben werden auf Ihrem Gerät verarbeitet.
Technische Hinweise auf Englisch
IPv4 only. Non-contiguous masks are rejected. 0.0.0.0 and 255.255.255.255 are read as subnet masks. Everything is calculated in your browser; nothing is sent or probed on the network.
A subnet mask is a run of 1 bits followed by 0 bits; the wildcard mask is its bitwise inverse, used by Cisco ACLs and OSPF. Usable hosts are 2^(32 − prefix) − 2, except /31 and /32.
255.255.255.192 is /26 with wildcard 0.0.0.63 and 62 usable hosts; 50 hosts need at least a /26.