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)10.201.32.0/22
network10.201.32.0/22
broadcast10.201.35.255
first host10.201.32.1
last host10.201.35.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.201.32.0/22
address00001010.11001001.00100000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.11001001.00100000.00000000
broadcast00001010.11001001.00100011.11111111
green = network part, grey = host part
hex0x0ac92000
decimal180953088
reverse dns0.32.201.10.in-addr.arpa
ipv4-mapped::ffff:ac9:2000
/22 split into /28 · 64 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.201.32.0/28 | 10.201.32.1 – 10.201.32.14 | 10.201.32.15 |
| 2 | 10.201.32.16/28 | 10.201.32.17 – 10.201.32.30 | 10.201.32.31 |
| 3 | 10.201.32.32/28 | 10.201.32.33 – 10.201.32.46 | 10.201.32.47 |
| 4 | 10.201.32.48/28 | 10.201.32.49 – 10.201.32.62 | 10.201.32.63 |
| 5 | 10.201.32.64/28 | 10.201.32.65 – 10.201.32.78 | 10.201.32.79 |
| 6 | 10.201.32.80/28 | 10.201.32.81 – 10.201.32.94 | 10.201.32.95 |
| 7 | 10.201.32.96/28 | 10.201.32.97 – 10.201.32.110 | 10.201.32.111 |
| 8 | 10.201.32.112/28 | 10.201.32.113 – 10.201.32.126 | 10.201.32.127 |
| 9 | 10.201.32.128/28 | 10.201.32.129 – 10.201.32.142 | 10.201.32.143 |
| 10 | 10.201.32.144/28 | 10.201.32.145 – 10.201.32.158 | 10.201.32.159 |
| 11 | 10.201.32.160/28 | 10.201.32.161 – 10.201.32.174 | 10.201.32.175 |
| 12 | 10.201.32.176/28 | 10.201.32.177 – 10.201.32.190 | 10.201.32.191 |
| 13 | 10.201.32.192/28 | 10.201.32.193 – 10.201.32.206 | 10.201.32.207 |
| 14 | 10.201.32.208/28 | 10.201.32.209 – 10.201.32.222 | 10.201.32.223 |
| 15 | 10.201.32.224/28 | 10.201.32.225 – 10.201.32.238 | 10.201.32.239 |
| 16 | 10.201.32.240/28 | 10.201.32.241 – 10.201.32.254 | 10.201.32.255 |
| 17 | 10.201.33.0/28 | 10.201.33.1 – 10.201.33.14 | 10.201.33.15 |
| 18 | 10.201.33.16/28 | 10.201.33.17 – 10.201.33.30 | 10.201.33.31 |
| 19 | 10.201.33.32/28 | 10.201.33.33 – 10.201.33.46 | 10.201.33.47 |
| 20 | 10.201.33.48/28 | 10.201.33.49 – 10.201.33.62 | 10.201.33.63 |
| 21 | 10.201.33.64/28 | 10.201.33.65 – 10.201.33.78 | 10.201.33.79 |
| 22 | 10.201.33.80/28 | 10.201.33.81 – 10.201.33.94 | 10.201.33.95 |
| 23 | 10.201.33.96/28 | 10.201.33.97 – 10.201.33.110 | 10.201.33.111 |
| 24 | 10.201.33.112/28 | 10.201.33.113 – 10.201.33.126 | 10.201.33.127 |
| 25 | 10.201.33.128/28 | 10.201.33.129 – 10.201.33.142 | 10.201.33.143 |
| 26 | 10.201.33.144/28 | 10.201.33.145 – 10.201.33.158 | 10.201.33.159 |
| 27 | 10.201.33.160/28 | 10.201.33.161 – 10.201.33.174 | 10.201.33.175 |
| 28 | 10.201.33.176/28 | 10.201.33.177 – 10.201.33.190 | 10.201.33.191 |
| 29 | 10.201.33.192/28 | 10.201.33.193 – 10.201.33.206 | 10.201.33.207 |
| 30 | 10.201.33.208/28 | 10.201.33.209 – 10.201.33.222 | 10.201.33.223 |
| 31 | 10.201.33.224/28 | 10.201.33.225 – 10.201.33.238 | 10.201.33.239 |
| 32 | 10.201.33.240/28 | 10.201.33.241 – 10.201.33.254 | 10.201.33.255 |
| 33 | 10.201.34.0/28 | 10.201.34.1 – 10.201.34.14 | 10.201.34.15 |
| 34 | 10.201.34.16/28 | 10.201.34.17 – 10.201.34.30 | 10.201.34.31 |
| 35 | 10.201.34.32/28 | 10.201.34.33 – 10.201.34.46 | 10.201.34.47 |
| 36 | 10.201.34.48/28 | 10.201.34.49 – 10.201.34.62 | 10.201.34.63 |
| 37 | 10.201.34.64/28 | 10.201.34.65 – 10.201.34.78 | 10.201.34.79 |
| 38 | 10.201.34.80/28 | 10.201.34.81 – 10.201.34.94 | 10.201.34.95 |
| 39 | 10.201.34.96/28 | 10.201.34.97 – 10.201.34.110 | 10.201.34.111 |
| 40 | 10.201.34.112/28 | 10.201.34.113 – 10.201.34.126 | 10.201.34.127 |
| 41 | 10.201.34.128/28 | 10.201.34.129 – 10.201.34.142 | 10.201.34.143 |
| 42 | 10.201.34.144/28 | 10.201.34.145 – 10.201.34.158 | 10.201.34.159 |
| 43 | 10.201.34.160/28 | 10.201.34.161 – 10.201.34.174 | 10.201.34.175 |
| 44 | 10.201.34.176/28 | 10.201.34.177 – 10.201.34.190 | 10.201.34.191 |
| 45 | 10.201.34.192/28 | 10.201.34.193 – 10.201.34.206 | 10.201.34.207 |
| 46 | 10.201.34.208/28 | 10.201.34.209 – 10.201.34.222 | 10.201.34.223 |
| 47 | 10.201.34.224/28 | 10.201.34.225 – 10.201.34.238 | 10.201.34.239 |
| 48 | 10.201.34.240/28 | 10.201.34.241 – 10.201.34.254 | 10.201.34.255 |
| 49 | 10.201.35.0/28 | 10.201.35.1 – 10.201.35.14 | 10.201.35.15 |
| 50 | 10.201.35.16/28 | 10.201.35.17 – 10.201.35.30 | 10.201.35.31 |
| 51 | 10.201.35.32/28 | 10.201.35.33 – 10.201.35.46 | 10.201.35.47 |
| 52 | 10.201.35.48/28 | 10.201.35.49 – 10.201.35.62 | 10.201.35.63 |
| 53 | 10.201.35.64/28 | 10.201.35.65 – 10.201.35.78 | 10.201.35.79 |
| 54 | 10.201.35.80/28 | 10.201.35.81 – 10.201.35.94 | 10.201.35.95 |
| 55 | 10.201.35.96/28 | 10.201.35.97 – 10.201.35.110 | 10.201.35.111 |
| 56 | 10.201.35.112/28 | 10.201.35.113 – 10.201.35.126 | 10.201.35.127 |
| 57 | 10.201.35.128/28 | 10.201.35.129 – 10.201.35.142 | 10.201.35.143 |
| 58 | 10.201.35.144/28 | 10.201.35.145 – 10.201.35.158 | 10.201.35.159 |
| 59 | 10.201.35.160/28 | 10.201.35.161 – 10.201.35.174 | 10.201.35.175 |
| 60 | 10.201.35.176/28 | 10.201.35.177 – 10.201.35.190 | 10.201.35.191 |
| 61 | 10.201.35.192/28 | 10.201.35.193 – 10.201.35.206 | 10.201.35.207 |
| 62 | 10.201.35.208/28 | 10.201.35.209 – 10.201.35.222 | 10.201.35.223 |
| 63 | 10.201.35.224/28 | 10.201.35.225 – 10.201.35.238 | 10.201.35.239 |
| 64 | 10.201.35.240/28 | 10.201.35.241 – 10.201.35.254 | 10.201.35.255 |
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.