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)10.63.60.0/22
network10.63.60.0/22
broadcast10.63.63.255
first host10.63.60.1
last host10.63.63.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.63.60.0/22
address00001010.00111111.00111100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.00111111.00111100.00000000
broadcast00001010.00111111.00111111.11111111
green = network part, grey = host part
hex0x0a3f3c00
decimal171916288
reverse dns0.60.63.10.in-addr.arpa
ipv4-mapped::ffff:a3f:3c00
/22 split into /28 · 64 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.63.60.0/28 | 10.63.60.1 – 10.63.60.14 | 10.63.60.15 |
| 2 | 10.63.60.16/28 | 10.63.60.17 – 10.63.60.30 | 10.63.60.31 |
| 3 | 10.63.60.32/28 | 10.63.60.33 – 10.63.60.46 | 10.63.60.47 |
| 4 | 10.63.60.48/28 | 10.63.60.49 – 10.63.60.62 | 10.63.60.63 |
| 5 | 10.63.60.64/28 | 10.63.60.65 – 10.63.60.78 | 10.63.60.79 |
| 6 | 10.63.60.80/28 | 10.63.60.81 – 10.63.60.94 | 10.63.60.95 |
| 7 | 10.63.60.96/28 | 10.63.60.97 – 10.63.60.110 | 10.63.60.111 |
| 8 | 10.63.60.112/28 | 10.63.60.113 – 10.63.60.126 | 10.63.60.127 |
| 9 | 10.63.60.128/28 | 10.63.60.129 – 10.63.60.142 | 10.63.60.143 |
| 10 | 10.63.60.144/28 | 10.63.60.145 – 10.63.60.158 | 10.63.60.159 |
| 11 | 10.63.60.160/28 | 10.63.60.161 – 10.63.60.174 | 10.63.60.175 |
| 12 | 10.63.60.176/28 | 10.63.60.177 – 10.63.60.190 | 10.63.60.191 |
| 13 | 10.63.60.192/28 | 10.63.60.193 – 10.63.60.206 | 10.63.60.207 |
| 14 | 10.63.60.208/28 | 10.63.60.209 – 10.63.60.222 | 10.63.60.223 |
| 15 | 10.63.60.224/28 | 10.63.60.225 – 10.63.60.238 | 10.63.60.239 |
| 16 | 10.63.60.240/28 | 10.63.60.241 – 10.63.60.254 | 10.63.60.255 |
| 17 | 10.63.61.0/28 | 10.63.61.1 – 10.63.61.14 | 10.63.61.15 |
| 18 | 10.63.61.16/28 | 10.63.61.17 – 10.63.61.30 | 10.63.61.31 |
| 19 | 10.63.61.32/28 | 10.63.61.33 – 10.63.61.46 | 10.63.61.47 |
| 20 | 10.63.61.48/28 | 10.63.61.49 – 10.63.61.62 | 10.63.61.63 |
| 21 | 10.63.61.64/28 | 10.63.61.65 – 10.63.61.78 | 10.63.61.79 |
| 22 | 10.63.61.80/28 | 10.63.61.81 – 10.63.61.94 | 10.63.61.95 |
| 23 | 10.63.61.96/28 | 10.63.61.97 – 10.63.61.110 | 10.63.61.111 |
| 24 | 10.63.61.112/28 | 10.63.61.113 – 10.63.61.126 | 10.63.61.127 |
| 25 | 10.63.61.128/28 | 10.63.61.129 – 10.63.61.142 | 10.63.61.143 |
| 26 | 10.63.61.144/28 | 10.63.61.145 – 10.63.61.158 | 10.63.61.159 |
| 27 | 10.63.61.160/28 | 10.63.61.161 – 10.63.61.174 | 10.63.61.175 |
| 28 | 10.63.61.176/28 | 10.63.61.177 – 10.63.61.190 | 10.63.61.191 |
| 29 | 10.63.61.192/28 | 10.63.61.193 – 10.63.61.206 | 10.63.61.207 |
| 30 | 10.63.61.208/28 | 10.63.61.209 – 10.63.61.222 | 10.63.61.223 |
| 31 | 10.63.61.224/28 | 10.63.61.225 – 10.63.61.238 | 10.63.61.239 |
| 32 | 10.63.61.240/28 | 10.63.61.241 – 10.63.61.254 | 10.63.61.255 |
| 33 | 10.63.62.0/28 | 10.63.62.1 – 10.63.62.14 | 10.63.62.15 |
| 34 | 10.63.62.16/28 | 10.63.62.17 – 10.63.62.30 | 10.63.62.31 |
| 35 | 10.63.62.32/28 | 10.63.62.33 – 10.63.62.46 | 10.63.62.47 |
| 36 | 10.63.62.48/28 | 10.63.62.49 – 10.63.62.62 | 10.63.62.63 |
| 37 | 10.63.62.64/28 | 10.63.62.65 – 10.63.62.78 | 10.63.62.79 |
| 38 | 10.63.62.80/28 | 10.63.62.81 – 10.63.62.94 | 10.63.62.95 |
| 39 | 10.63.62.96/28 | 10.63.62.97 – 10.63.62.110 | 10.63.62.111 |
| 40 | 10.63.62.112/28 | 10.63.62.113 – 10.63.62.126 | 10.63.62.127 |
| 41 | 10.63.62.128/28 | 10.63.62.129 – 10.63.62.142 | 10.63.62.143 |
| 42 | 10.63.62.144/28 | 10.63.62.145 – 10.63.62.158 | 10.63.62.159 |
| 43 | 10.63.62.160/28 | 10.63.62.161 – 10.63.62.174 | 10.63.62.175 |
| 44 | 10.63.62.176/28 | 10.63.62.177 – 10.63.62.190 | 10.63.62.191 |
| 45 | 10.63.62.192/28 | 10.63.62.193 – 10.63.62.206 | 10.63.62.207 |
| 46 | 10.63.62.208/28 | 10.63.62.209 – 10.63.62.222 | 10.63.62.223 |
| 47 | 10.63.62.224/28 | 10.63.62.225 – 10.63.62.238 | 10.63.62.239 |
| 48 | 10.63.62.240/28 | 10.63.62.241 – 10.63.62.254 | 10.63.62.255 |
| 49 | 10.63.63.0/28 | 10.63.63.1 – 10.63.63.14 | 10.63.63.15 |
| 50 | 10.63.63.16/28 | 10.63.63.17 – 10.63.63.30 | 10.63.63.31 |
| 51 | 10.63.63.32/28 | 10.63.63.33 – 10.63.63.46 | 10.63.63.47 |
| 52 | 10.63.63.48/28 | 10.63.63.49 – 10.63.63.62 | 10.63.63.63 |
| 53 | 10.63.63.64/28 | 10.63.63.65 – 10.63.63.78 | 10.63.63.79 |
| 54 | 10.63.63.80/28 | 10.63.63.81 – 10.63.63.94 | 10.63.63.95 |
| 55 | 10.63.63.96/28 | 10.63.63.97 – 10.63.63.110 | 10.63.63.111 |
| 56 | 10.63.63.112/28 | 10.63.63.113 – 10.63.63.126 | 10.63.63.127 |
| 57 | 10.63.63.128/28 | 10.63.63.129 – 10.63.63.142 | 10.63.63.143 |
| 58 | 10.63.63.144/28 | 10.63.63.145 – 10.63.63.158 | 10.63.63.159 |
| 59 | 10.63.63.160/28 | 10.63.63.161 – 10.63.63.174 | 10.63.63.175 |
| 60 | 10.63.63.176/28 | 10.63.63.177 – 10.63.63.190 | 10.63.63.191 |
| 61 | 10.63.63.192/28 | 10.63.63.193 – 10.63.63.206 | 10.63.63.207 |
| 62 | 10.63.63.208/28 | 10.63.63.209 – 10.63.63.222 | 10.63.63.223 |
| 63 | 10.63.63.224/28 | 10.63.63.225 – 10.63.63.238 | 10.63.63.239 |
| 64 | 10.63.63.240/28 | 10.63.63.241 – 10.63.63.254 | 10.63.63.255 |
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.