IPv4 Subnet Calculator
Enter an IP with a CIDR prefix or a subnet mask to see its network, broadcast, host range, and host count. You can also split the network into smaller subnets.
private IP (RFC 1918)10.0.26.160/27
network10.0.26.160/27
broadcast10.0.26.191
first host10.0.26.161
last host10.0.26.190
subnet mask255.255.255.224
wildcard0.0.0.31
addresses32
usable hosts30
classA
ipcalc 10.0.26.160/27
address00001010.00000000.00011010.10100000
subnet mask11111111.11111111.11111111.11100000
network00001010.00000000.00011010.10100000
broadcast00001010.00000000.00011010.10111111
green = network part, grey = host part
hex0x0a001aa0
decimal167778976
reverse dns160.26.0.10.in-addr.arpa
ipv4-mapped::ffff:a00:1aa0
/27 split into /32 · 32 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.0.26.160/32 | 10.0.26.160 – 10.0.26.160 | 10.0.26.160 |
| 2 | 10.0.26.161/32 | 10.0.26.161 – 10.0.26.161 | 10.0.26.161 |
| 3 | 10.0.26.162/32 | 10.0.26.162 – 10.0.26.162 | 10.0.26.162 |
| 4 | 10.0.26.163/32 | 10.0.26.163 – 10.0.26.163 | 10.0.26.163 |
| 5 | 10.0.26.164/32 | 10.0.26.164 – 10.0.26.164 | 10.0.26.164 |
| 6 | 10.0.26.165/32 | 10.0.26.165 – 10.0.26.165 | 10.0.26.165 |
| 7 | 10.0.26.166/32 | 10.0.26.166 – 10.0.26.166 | 10.0.26.166 |
| 8 | 10.0.26.167/32 | 10.0.26.167 – 10.0.26.167 | 10.0.26.167 |
| 9 | 10.0.26.168/32 | 10.0.26.168 – 10.0.26.168 | 10.0.26.168 |
| 10 | 10.0.26.169/32 | 10.0.26.169 – 10.0.26.169 | 10.0.26.169 |
| 11 | 10.0.26.170/32 | 10.0.26.170 – 10.0.26.170 | 10.0.26.170 |
| 12 | 10.0.26.171/32 | 10.0.26.171 – 10.0.26.171 | 10.0.26.171 |
| 13 | 10.0.26.172/32 | 10.0.26.172 – 10.0.26.172 | 10.0.26.172 |
| 14 | 10.0.26.173/32 | 10.0.26.173 – 10.0.26.173 | 10.0.26.173 |
| 15 | 10.0.26.174/32 | 10.0.26.174 – 10.0.26.174 | 10.0.26.174 |
| 16 | 10.0.26.175/32 | 10.0.26.175 – 10.0.26.175 | 10.0.26.175 |
| 17 | 10.0.26.176/32 | 10.0.26.176 – 10.0.26.176 | 10.0.26.176 |
| 18 | 10.0.26.177/32 | 10.0.26.177 – 10.0.26.177 | 10.0.26.177 |
| 19 | 10.0.26.178/32 | 10.0.26.178 – 10.0.26.178 | 10.0.26.178 |
| 20 | 10.0.26.179/32 | 10.0.26.179 – 10.0.26.179 | 10.0.26.179 |
| 21 | 10.0.26.180/32 | 10.0.26.180 – 10.0.26.180 | 10.0.26.180 |
| 22 | 10.0.26.181/32 | 10.0.26.181 – 10.0.26.181 | 10.0.26.181 |
| 23 | 10.0.26.182/32 | 10.0.26.182 – 10.0.26.182 | 10.0.26.182 |
| 24 | 10.0.26.183/32 | 10.0.26.183 – 10.0.26.183 | 10.0.26.183 |
| 25 | 10.0.26.184/32 | 10.0.26.184 – 10.0.26.184 | 10.0.26.184 |
| 26 | 10.0.26.185/32 | 10.0.26.185 – 10.0.26.185 | 10.0.26.185 |
| 27 | 10.0.26.186/32 | 10.0.26.186 – 10.0.26.186 | 10.0.26.186 |
| 28 | 10.0.26.187/32 | 10.0.26.187 – 10.0.26.187 | 10.0.26.187 |
| 29 | 10.0.26.188/32 | 10.0.26.188 – 10.0.26.188 | 10.0.26.188 |
| 30 | 10.0.26.189/32 | 10.0.26.189 – 10.0.26.189 | 10.0.26.189 |
| 31 | 10.0.26.190/32 | 10.0.26.190 – 10.0.26.190 | 10.0.26.190 |
| 32 | 10.0.26.191/32 | 10.0.26.191 – 10.0.26.191 | 10.0.26.191 |
01 / table
IPv4 CIDR prefix table.
Click a prefix longer than your network to split it into subnets.
| prefix | subnet mask | addresses | hosts | in your /27 |
|---|---|---|---|---|
| /0 | 0.0.0.0 | 4,294,967,296 | 4,294,967,294 | - |
| /1 | 128.0.0.0 | 2,147,483,648 | 2,147,483,646 | - |
| /2 | 192.0.0.0 | 1,073,741,824 | 1,073,741,822 | - |
| /3 | 224.0.0.0 | 536,870,912 | 536,870,910 | - |
| /4 | 240.0.0.0 | 268,435,456 | 268,435,454 | - |
| /5 | 248.0.0.0 | 134,217,728 | 134,217,726 | - |
| /6 | 252.0.0.0 | 67,108,864 | 67,108,862 | - |
| /7 | 254.0.0.0 | 33,554,432 | 33,554,430 | - |
| /8 | 255.0.0.0 | 16,777,216 | 16,777,214 | - |
| /9 | 255.128.0.0 | 8,388,608 | 8,388,606 | - |
| /10 | 255.192.0.0 | 4,194,304 | 4,194,302 | - |
| /11 | 255.224.0.0 | 2,097,152 | 2,097,150 | - |
| /12 | 255.240.0.0 | 1,048,576 | 1,048,574 | - |
| /13 | 255.248.0.0 | 524,288 | 524,286 | - |
| /14 | 255.252.0.0 | 262,144 | 262,142 | - |
| /15 | 255.254.0.0 | 131,072 | 131,070 | - |
| /16 | 255.255.0.0 | 65,536 | 65,534 | - |
| /17 | 255.255.128.0 | 32,768 | 32,766 | - |
| /18 | 255.255.192.0 | 16,384 | 16,382 | - |
| /19 | 255.255.224.0 | 8,192 | 8,190 | - |
| /20 | 255.255.240.0 | 4,096 | 4,094 | - |
| /21 | 255.255.248.0 | 2,048 | 2,046 | - |
| /22 | 255.255.252.0 | 1,024 | 1,022 | - |
| /23 | 255.255.254.0 | 512 | 510 | - |
| /24 | 255.255.255.0 | 256 | 254 | - |
| /25 | 255.255.255.128 | 128 | 126 | - |
| /26 | 255.255.255.192 | 64 | 62 | - |
| /27 | 255.255.255.224 | 32 | 30 | 1 |
| /28 | 255.255.255.240 | 16 | 14 | 2 split → |
| /29 | 255.255.255.248 | 8 | 6 | 4 split → |
| /30 | 255.255.255.252 | 4 | 2 | 8 split → |
| /31 | 255.255.255.254 | 2 | 2 | 16 split → |
| /32 | 255.255.255.255 | 1 | 1 | 32 split → |
02 / faq
About this calculator.
How do I use this subnet calculator?
▼
Type an IP address followed by a prefix, like 192.168.1.10/24, or by a subnet mask, like 192.168.1.10 255.255.255.0. Without a prefix it uses /24. Click a row in the table to split the network into smaller subnets.
Why are usable hosts always 2 fewer?
▼
The first address in a subnet is the network address and the last is the broadcast address, so neither can go to a device. The exceptions are /31 (point-to-point links, RFC 3021) and /32 (a single address), which use every address.
Can I use it from a terminal?
▼
Yes. curl 'ipku.in/en/tools/ipv4-subnet-calculator?q=192.168.1.10/24' returns the result as plain text.