/13 subnet
Mask 255.248.0.0 · 524,286 usable hosts · 524,288 addresses
| Subnet mask | 255.248.0.0 |
|---|---|
| Wildcard mask | 0.7.255.255 |
| Binary mask | 11111111.11111000.00000000.00000000 |
| Network / host bits | 13 / 19 |
| Total addresses | 524,288 |
| Usable hosts | 524,286 |
| Per /8 · /16 · /24 | 32 · – · – |
| Example | 192.168.10.77/13 → network 192.168.0.0, hosts 192.168.0.1 – 192.175.255.254, broadcast 192.175.255.255 |
Where /13 is used
A /13 is a less common size; it sits between /12 (1,048,576 addresses) and /14 (262,144 addresses).
Block boundaries: a /13 must start at a multiple of 524,288 addresses. Calculate any specific address in the subnet calculator.
Neighbouring prefixes
Questions
How many hosts in a /13?
524,288 addresses, of which 524,286 are usable (the first is the network address and the last is broadcast).
What is the subnet mask for /13?
255.248.0.0. In binary: 11111111.11111000.00000000.00000000. The wildcard (inverse) mask is 0.7.255.255.