/15 Subnet
Subnet Mask
255.254.0.0
Wildcard Mask
0.1.255.255
Total IPs
131,072
Usable Hosts
131,070
Network Bits
15
Host Bits
17
About /15 Networks
Medium-to-large enterprise allocation. A /15 subnet uses the mask 255.254.0.0 and provides 131,070 usable host addresses out of 131,072 total IPs.
Example /15 Networks
| Network | Broadcast | First Host | Last Host |
|---|---|---|---|
| 10.0.0.0/15 | 10.1.255.255 | 10.0.0.1 | 10.1.255.254 |
| 172.16.0.0/15 | 172.17.255.255 | 172.16.0.1 | 172.17.255.254 |
| 192.168.0.0/15 | 192.169.255.255 | 192.168.0.1 | 192.169.255.254 |
| 192.168.0.0/15 | 192.169.255.255 | 192.168.0.1 | 192.169.255.254 |
| 8.8.0.0/15 | 8.9.255.255 | 8.8.0.1 | 8.9.255.254 |
Adjacent CIDRs
Frequently Asked Questions
What is a /15 subnet?
A /15 subnet uses the subnet mask 255.254.0.0 with 131,070 usable host addresses and 131,072 total IP addresses. It has 15 network bits and 17 host bits.
How many hosts in a /15 network?
A /15 network supports 131,070 usable hosts out of 131,072 total IP addresses. The usable range excludes the network address and broadcast address.
What subnet mask does /15 use?
A /15 subnet uses the mask 255.254.0.0 (wildcard mask 0.1.255.255). This means the first 15 bits identify the network and the remaining 17 bits identify hosts.