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)10.68.96.0/22
network10.68.96.0/22
broadcast10.68.99.255
first host10.68.96.1
last host10.68.99.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.68.96.0/22
address00001010.01000100.01100000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01000100.01100000.00000000
broadcast00001010.01000100.01100011.11111111
green = network part, grey = host part
hex0x0a446000
decimal172253184
reverse dns0.96.68.10.in-addr.arpa
ipv4-mapped::ffff:a44:6000
/22 split into /28 · 64 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.68.96.0/28 | 10.68.96.1 – 10.68.96.14 | 10.68.96.15 |
| 2 | 10.68.96.16/28 | 10.68.96.17 – 10.68.96.30 | 10.68.96.31 |
| 3 | 10.68.96.32/28 | 10.68.96.33 – 10.68.96.46 | 10.68.96.47 |
| 4 | 10.68.96.48/28 | 10.68.96.49 – 10.68.96.62 | 10.68.96.63 |
| 5 | 10.68.96.64/28 | 10.68.96.65 – 10.68.96.78 | 10.68.96.79 |
| 6 | 10.68.96.80/28 | 10.68.96.81 – 10.68.96.94 | 10.68.96.95 |
| 7 | 10.68.96.96/28 | 10.68.96.97 – 10.68.96.110 | 10.68.96.111 |
| 8 | 10.68.96.112/28 | 10.68.96.113 – 10.68.96.126 | 10.68.96.127 |
| 9 | 10.68.96.128/28 | 10.68.96.129 – 10.68.96.142 | 10.68.96.143 |
| 10 | 10.68.96.144/28 | 10.68.96.145 – 10.68.96.158 | 10.68.96.159 |
| 11 | 10.68.96.160/28 | 10.68.96.161 – 10.68.96.174 | 10.68.96.175 |
| 12 | 10.68.96.176/28 | 10.68.96.177 – 10.68.96.190 | 10.68.96.191 |
| 13 | 10.68.96.192/28 | 10.68.96.193 – 10.68.96.206 | 10.68.96.207 |
| 14 | 10.68.96.208/28 | 10.68.96.209 – 10.68.96.222 | 10.68.96.223 |
| 15 | 10.68.96.224/28 | 10.68.96.225 – 10.68.96.238 | 10.68.96.239 |
| 16 | 10.68.96.240/28 | 10.68.96.241 – 10.68.96.254 | 10.68.96.255 |
| 17 | 10.68.97.0/28 | 10.68.97.1 – 10.68.97.14 | 10.68.97.15 |
| 18 | 10.68.97.16/28 | 10.68.97.17 – 10.68.97.30 | 10.68.97.31 |
| 19 | 10.68.97.32/28 | 10.68.97.33 – 10.68.97.46 | 10.68.97.47 |
| 20 | 10.68.97.48/28 | 10.68.97.49 – 10.68.97.62 | 10.68.97.63 |
| 21 | 10.68.97.64/28 | 10.68.97.65 – 10.68.97.78 | 10.68.97.79 |
| 22 | 10.68.97.80/28 | 10.68.97.81 – 10.68.97.94 | 10.68.97.95 |
| 23 | 10.68.97.96/28 | 10.68.97.97 – 10.68.97.110 | 10.68.97.111 |
| 24 | 10.68.97.112/28 | 10.68.97.113 – 10.68.97.126 | 10.68.97.127 |
| 25 | 10.68.97.128/28 | 10.68.97.129 – 10.68.97.142 | 10.68.97.143 |
| 26 | 10.68.97.144/28 | 10.68.97.145 – 10.68.97.158 | 10.68.97.159 |
| 27 | 10.68.97.160/28 | 10.68.97.161 – 10.68.97.174 | 10.68.97.175 |
| 28 | 10.68.97.176/28 | 10.68.97.177 – 10.68.97.190 | 10.68.97.191 |
| 29 | 10.68.97.192/28 | 10.68.97.193 – 10.68.97.206 | 10.68.97.207 |
| 30 | 10.68.97.208/28 | 10.68.97.209 – 10.68.97.222 | 10.68.97.223 |
| 31 | 10.68.97.224/28 | 10.68.97.225 – 10.68.97.238 | 10.68.97.239 |
| 32 | 10.68.97.240/28 | 10.68.97.241 – 10.68.97.254 | 10.68.97.255 |
| 33 | 10.68.98.0/28 | 10.68.98.1 – 10.68.98.14 | 10.68.98.15 |
| 34 | 10.68.98.16/28 | 10.68.98.17 – 10.68.98.30 | 10.68.98.31 |
| 35 | 10.68.98.32/28 | 10.68.98.33 – 10.68.98.46 | 10.68.98.47 |
| 36 | 10.68.98.48/28 | 10.68.98.49 – 10.68.98.62 | 10.68.98.63 |
| 37 | 10.68.98.64/28 | 10.68.98.65 – 10.68.98.78 | 10.68.98.79 |
| 38 | 10.68.98.80/28 | 10.68.98.81 – 10.68.98.94 | 10.68.98.95 |
| 39 | 10.68.98.96/28 | 10.68.98.97 – 10.68.98.110 | 10.68.98.111 |
| 40 | 10.68.98.112/28 | 10.68.98.113 – 10.68.98.126 | 10.68.98.127 |
| 41 | 10.68.98.128/28 | 10.68.98.129 – 10.68.98.142 | 10.68.98.143 |
| 42 | 10.68.98.144/28 | 10.68.98.145 – 10.68.98.158 | 10.68.98.159 |
| 43 | 10.68.98.160/28 | 10.68.98.161 – 10.68.98.174 | 10.68.98.175 |
| 44 | 10.68.98.176/28 | 10.68.98.177 – 10.68.98.190 | 10.68.98.191 |
| 45 | 10.68.98.192/28 | 10.68.98.193 – 10.68.98.206 | 10.68.98.207 |
| 46 | 10.68.98.208/28 | 10.68.98.209 – 10.68.98.222 | 10.68.98.223 |
| 47 | 10.68.98.224/28 | 10.68.98.225 – 10.68.98.238 | 10.68.98.239 |
| 48 | 10.68.98.240/28 | 10.68.98.241 – 10.68.98.254 | 10.68.98.255 |
| 49 | 10.68.99.0/28 | 10.68.99.1 – 10.68.99.14 | 10.68.99.15 |
| 50 | 10.68.99.16/28 | 10.68.99.17 – 10.68.99.30 | 10.68.99.31 |
| 51 | 10.68.99.32/28 | 10.68.99.33 – 10.68.99.46 | 10.68.99.47 |
| 52 | 10.68.99.48/28 | 10.68.99.49 – 10.68.99.62 | 10.68.99.63 |
| 53 | 10.68.99.64/28 | 10.68.99.65 – 10.68.99.78 | 10.68.99.79 |
| 54 | 10.68.99.80/28 | 10.68.99.81 – 10.68.99.94 | 10.68.99.95 |
| 55 | 10.68.99.96/28 | 10.68.99.97 – 10.68.99.110 | 10.68.99.111 |
| 56 | 10.68.99.112/28 | 10.68.99.113 – 10.68.99.126 | 10.68.99.127 |
| 57 | 10.68.99.128/28 | 10.68.99.129 – 10.68.99.142 | 10.68.99.143 |
| 58 | 10.68.99.144/28 | 10.68.99.145 – 10.68.99.158 | 10.68.99.159 |
| 59 | 10.68.99.160/28 | 10.68.99.161 – 10.68.99.174 | 10.68.99.175 |
| 60 | 10.68.99.176/28 | 10.68.99.177 – 10.68.99.190 | 10.68.99.191 |
| 61 | 10.68.99.192/28 | 10.68.99.193 – 10.68.99.206 | 10.68.99.207 |
| 62 | 10.68.99.208/28 | 10.68.99.209 – 10.68.99.222 | 10.68.99.223 |
| 63 | 10.68.99.224/28 | 10.68.99.225 – 10.68.99.238 | 10.68.99.239 |
| 64 | 10.68.99.240/28 | 10.68.99.241 – 10.68.99.254 | 10.68.99.255 |
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 /22 |
|---|---|---|---|---|
| /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 | 1 |
| /23 | 255.255.254.0 | 512 | 510 | 2 split → |
| /24 | 255.255.255.0 | 256 | 254 | 4 split → |
| /25 | 255.255.255.128 | 128 | 126 | 8 split → |
| /26 | 255.255.255.192 | 64 | 62 | 16 split → |
| /27 | 255.255.255.224 | 32 | 30 | 32 split → |
| /28 | 255.255.255.240 | 16 | 14 | 64 split → |
| /29 | 255.255.255.248 | 8 | 6 | 128 split → |
| /30 | 255.255.255.252 | 4 | 2 | 256 split → |
| /31 | 255.255.255.254 | 2 | 2 | 512 split → |
| /32 | 255.255.255.255 | 1 | 1 | 1,024 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.