/29 subnet
Mask 255.255.255.248 · 6 usable hosts · 8 addresses
| Subnet mask | 255.255.255.248 |
|---|---|
| Wildcard mask | 0.0.0.7 |
| Binary mask | 11111111.11111111.11111111.11111000 |
| Network / host bits | 29 / 3 |
| Total addresses | 8 |
| Usable hosts | 6 |
| Per /8 · /16 · /24 | 2,097,152 · 8,192 · 32 |
| Example | 192.168.10.77/29 → network 192.168.10.72, hosts 192.168.10.73 – 192.168.10.78, broadcast 192.168.10.79 |
Where /29 is used
Common small static-IP block from ISPs (5 usable after the gateway).
Block boundaries: a /29 must start at a multiple of 8 addresses, so in the last octet networks start at 0, 8, 16, 24, 32, 40, 48, 56…. Calculate any specific address in the subnet calculator.
Neighbouring prefixes
Questions
How many hosts in a /29?
8 addresses, of which 6 are usable (the first is the network address and the last is broadcast).
What is the subnet mask for /29?
255.255.255.248. In binary: 11111111.11111111.11111111.11111000. The wildcard (inverse) mask is 0.0.0.7.