/0 subnet
A /0 prefix equals subnet mask 0.0.0.0 and wildcard 255.255.255.255. It holds 4,294,967,296 addresses, 4,294,967,294 of them usable by hosts.
/0
- Subnet mask
- 0.0.0.0
- Wildcard mask
- 255.255.255.255
- Binary mask
- 00000000.00000000.00000000.00000000
- Total addresses
- 4,294,967,296
- Usable hosts
- 4,294,967,294
- Example network
- 0.0.0.0/0
- Example range
- 0.0.0.0 – 255.255.255.255
A /0 covers the whole IPv4 space. The route 0.0.0.0/0 is the default route.