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)10.232.20.0/22
network10.232.20.0/22
broadcast10.232.23.255
first host10.232.20.1
last host10.232.23.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.232.20.0/22
address00001010.11101000.00010100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.11101000.00010100.00000000
broadcast00001010.11101000.00010111.11111111
green = network part, grey = host part
hex0x0ae81400
decimal182981632
reverse dns0.20.232.10.in-addr.arpa
ipv4-mapped::ffff:ae8:1400
/22 split into /29 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.232.20.0/29 | 10.232.20.1 – 10.232.20.6 | 10.232.20.7 |
| 2 | 10.232.20.8/29 | 10.232.20.9 – 10.232.20.14 | 10.232.20.15 |
| 3 | 10.232.20.16/29 | 10.232.20.17 – 10.232.20.22 | 10.232.20.23 |
| 4 | 10.232.20.24/29 | 10.232.20.25 – 10.232.20.30 | 10.232.20.31 |
| 5 | 10.232.20.32/29 | 10.232.20.33 – 10.232.20.38 | 10.232.20.39 |
| 6 | 10.232.20.40/29 | 10.232.20.41 – 10.232.20.46 | 10.232.20.47 |
| 7 | 10.232.20.48/29 | 10.232.20.49 – 10.232.20.54 | 10.232.20.55 |
| 8 | 10.232.20.56/29 | 10.232.20.57 – 10.232.20.62 | 10.232.20.63 |
| 9 | 10.232.20.64/29 | 10.232.20.65 – 10.232.20.70 | 10.232.20.71 |
| 10 | 10.232.20.72/29 | 10.232.20.73 – 10.232.20.78 | 10.232.20.79 |
| 11 | 10.232.20.80/29 | 10.232.20.81 – 10.232.20.86 | 10.232.20.87 |
| 12 | 10.232.20.88/29 | 10.232.20.89 – 10.232.20.94 | 10.232.20.95 |
| 13 | 10.232.20.96/29 | 10.232.20.97 – 10.232.20.102 | 10.232.20.103 |
| 14 | 10.232.20.104/29 | 10.232.20.105 – 10.232.20.110 | 10.232.20.111 |
| 15 | 10.232.20.112/29 | 10.232.20.113 – 10.232.20.118 | 10.232.20.119 |
| 16 | 10.232.20.120/29 | 10.232.20.121 – 10.232.20.126 | 10.232.20.127 |
| 17 | 10.232.20.128/29 | 10.232.20.129 – 10.232.20.134 | 10.232.20.135 |
| 18 | 10.232.20.136/29 | 10.232.20.137 – 10.232.20.142 | 10.232.20.143 |
| 19 | 10.232.20.144/29 | 10.232.20.145 – 10.232.20.150 | 10.232.20.151 |
| 20 | 10.232.20.152/29 | 10.232.20.153 – 10.232.20.158 | 10.232.20.159 |
| 21 | 10.232.20.160/29 | 10.232.20.161 – 10.232.20.166 | 10.232.20.167 |
| 22 | 10.232.20.168/29 | 10.232.20.169 – 10.232.20.174 | 10.232.20.175 |
| 23 | 10.232.20.176/29 | 10.232.20.177 – 10.232.20.182 | 10.232.20.183 |
| 24 | 10.232.20.184/29 | 10.232.20.185 – 10.232.20.190 | 10.232.20.191 |
| 25 | 10.232.20.192/29 | 10.232.20.193 – 10.232.20.198 | 10.232.20.199 |
| 26 | 10.232.20.200/29 | 10.232.20.201 – 10.232.20.206 | 10.232.20.207 |
| 27 | 10.232.20.208/29 | 10.232.20.209 – 10.232.20.214 | 10.232.20.215 |
| 28 | 10.232.20.216/29 | 10.232.20.217 – 10.232.20.222 | 10.232.20.223 |
| 29 | 10.232.20.224/29 | 10.232.20.225 – 10.232.20.230 | 10.232.20.231 |
| 30 | 10.232.20.232/29 | 10.232.20.233 – 10.232.20.238 | 10.232.20.239 |
| 31 | 10.232.20.240/29 | 10.232.20.241 – 10.232.20.246 | 10.232.20.247 |
| 32 | 10.232.20.248/29 | 10.232.20.249 – 10.232.20.254 | 10.232.20.255 |
| 33 | 10.232.21.0/29 | 10.232.21.1 – 10.232.21.6 | 10.232.21.7 |
| 34 | 10.232.21.8/29 | 10.232.21.9 – 10.232.21.14 | 10.232.21.15 |
| 35 | 10.232.21.16/29 | 10.232.21.17 – 10.232.21.22 | 10.232.21.23 |
| 36 | 10.232.21.24/29 | 10.232.21.25 – 10.232.21.30 | 10.232.21.31 |
| 37 | 10.232.21.32/29 | 10.232.21.33 – 10.232.21.38 | 10.232.21.39 |
| 38 | 10.232.21.40/29 | 10.232.21.41 – 10.232.21.46 | 10.232.21.47 |
| 39 | 10.232.21.48/29 | 10.232.21.49 – 10.232.21.54 | 10.232.21.55 |
| 40 | 10.232.21.56/29 | 10.232.21.57 – 10.232.21.62 | 10.232.21.63 |
| 41 | 10.232.21.64/29 | 10.232.21.65 – 10.232.21.70 | 10.232.21.71 |
| 42 | 10.232.21.72/29 | 10.232.21.73 – 10.232.21.78 | 10.232.21.79 |
| 43 | 10.232.21.80/29 | 10.232.21.81 – 10.232.21.86 | 10.232.21.87 |
| 44 | 10.232.21.88/29 | 10.232.21.89 – 10.232.21.94 | 10.232.21.95 |
| 45 | 10.232.21.96/29 | 10.232.21.97 – 10.232.21.102 | 10.232.21.103 |
| 46 | 10.232.21.104/29 | 10.232.21.105 – 10.232.21.110 | 10.232.21.111 |
| 47 | 10.232.21.112/29 | 10.232.21.113 – 10.232.21.118 | 10.232.21.119 |
| 48 | 10.232.21.120/29 | 10.232.21.121 – 10.232.21.126 | 10.232.21.127 |
| 49 | 10.232.21.128/29 | 10.232.21.129 – 10.232.21.134 | 10.232.21.135 |
| 50 | 10.232.21.136/29 | 10.232.21.137 – 10.232.21.142 | 10.232.21.143 |
| 51 | 10.232.21.144/29 | 10.232.21.145 – 10.232.21.150 | 10.232.21.151 |
| 52 | 10.232.21.152/29 | 10.232.21.153 – 10.232.21.158 | 10.232.21.159 |
| 53 | 10.232.21.160/29 | 10.232.21.161 – 10.232.21.166 | 10.232.21.167 |
| 54 | 10.232.21.168/29 | 10.232.21.169 – 10.232.21.174 | 10.232.21.175 |
| 55 | 10.232.21.176/29 | 10.232.21.177 – 10.232.21.182 | 10.232.21.183 |
| 56 | 10.232.21.184/29 | 10.232.21.185 – 10.232.21.190 | 10.232.21.191 |
| 57 | 10.232.21.192/29 | 10.232.21.193 – 10.232.21.198 | 10.232.21.199 |
| 58 | 10.232.21.200/29 | 10.232.21.201 – 10.232.21.206 | 10.232.21.207 |
| 59 | 10.232.21.208/29 | 10.232.21.209 – 10.232.21.214 | 10.232.21.215 |
| 60 | 10.232.21.216/29 | 10.232.21.217 – 10.232.21.222 | 10.232.21.223 |
| 61 | 10.232.21.224/29 | 10.232.21.225 – 10.232.21.230 | 10.232.21.231 |
| 62 | 10.232.21.232/29 | 10.232.21.233 – 10.232.21.238 | 10.232.21.239 |
| 63 | 10.232.21.240/29 | 10.232.21.241 – 10.232.21.246 | 10.232.21.247 |
| 64 | 10.232.21.248/29 | 10.232.21.249 – 10.232.21.254 | 10.232.21.255 |
| 65 | 10.232.22.0/29 | 10.232.22.1 – 10.232.22.6 | 10.232.22.7 |
| 66 | 10.232.22.8/29 | 10.232.22.9 – 10.232.22.14 | 10.232.22.15 |
| 67 | 10.232.22.16/29 | 10.232.22.17 – 10.232.22.22 | 10.232.22.23 |
| 68 | 10.232.22.24/29 | 10.232.22.25 – 10.232.22.30 | 10.232.22.31 |
| 69 | 10.232.22.32/29 | 10.232.22.33 – 10.232.22.38 | 10.232.22.39 |
| 70 | 10.232.22.40/29 | 10.232.22.41 – 10.232.22.46 | 10.232.22.47 |
| 71 | 10.232.22.48/29 | 10.232.22.49 – 10.232.22.54 | 10.232.22.55 |
| 72 | 10.232.22.56/29 | 10.232.22.57 – 10.232.22.62 | 10.232.22.63 |
| 73 | 10.232.22.64/29 | 10.232.22.65 – 10.232.22.70 | 10.232.22.71 |
| 74 | 10.232.22.72/29 | 10.232.22.73 – 10.232.22.78 | 10.232.22.79 |
| 75 | 10.232.22.80/29 | 10.232.22.81 – 10.232.22.86 | 10.232.22.87 |
| 76 | 10.232.22.88/29 | 10.232.22.89 – 10.232.22.94 | 10.232.22.95 |
| 77 | 10.232.22.96/29 | 10.232.22.97 – 10.232.22.102 | 10.232.22.103 |
| 78 | 10.232.22.104/29 | 10.232.22.105 – 10.232.22.110 | 10.232.22.111 |
| 79 | 10.232.22.112/29 | 10.232.22.113 – 10.232.22.118 | 10.232.22.119 |
| 80 | 10.232.22.120/29 | 10.232.22.121 – 10.232.22.126 | 10.232.22.127 |
| 81 | 10.232.22.128/29 | 10.232.22.129 – 10.232.22.134 | 10.232.22.135 |
| 82 | 10.232.22.136/29 | 10.232.22.137 – 10.232.22.142 | 10.232.22.143 |
| 83 | 10.232.22.144/29 | 10.232.22.145 – 10.232.22.150 | 10.232.22.151 |
| 84 | 10.232.22.152/29 | 10.232.22.153 – 10.232.22.158 | 10.232.22.159 |
| 85 | 10.232.22.160/29 | 10.232.22.161 – 10.232.22.166 | 10.232.22.167 |
| 86 | 10.232.22.168/29 | 10.232.22.169 – 10.232.22.174 | 10.232.22.175 |
| 87 | 10.232.22.176/29 | 10.232.22.177 – 10.232.22.182 | 10.232.22.183 |
| 88 | 10.232.22.184/29 | 10.232.22.185 – 10.232.22.190 | 10.232.22.191 |
| 89 | 10.232.22.192/29 | 10.232.22.193 – 10.232.22.198 | 10.232.22.199 |
| 90 | 10.232.22.200/29 | 10.232.22.201 – 10.232.22.206 | 10.232.22.207 |
| 91 | 10.232.22.208/29 | 10.232.22.209 – 10.232.22.214 | 10.232.22.215 |
| 92 | 10.232.22.216/29 | 10.232.22.217 – 10.232.22.222 | 10.232.22.223 |
| 93 | 10.232.22.224/29 | 10.232.22.225 – 10.232.22.230 | 10.232.22.231 |
| 94 | 10.232.22.232/29 | 10.232.22.233 – 10.232.22.238 | 10.232.22.239 |
| 95 | 10.232.22.240/29 | 10.232.22.241 – 10.232.22.246 | 10.232.22.247 |
| 96 | 10.232.22.248/29 | 10.232.22.249 – 10.232.22.254 | 10.232.22.255 |
| 97 | 10.232.23.0/29 | 10.232.23.1 – 10.232.23.6 | 10.232.23.7 |
| 98 | 10.232.23.8/29 | 10.232.23.9 – 10.232.23.14 | 10.232.23.15 |
| 99 | 10.232.23.16/29 | 10.232.23.17 – 10.232.23.22 | 10.232.23.23 |
| 100 | 10.232.23.24/29 | 10.232.23.25 – 10.232.23.30 | 10.232.23.31 |
| 101 | 10.232.23.32/29 | 10.232.23.33 – 10.232.23.38 | 10.232.23.39 |
| 102 | 10.232.23.40/29 | 10.232.23.41 – 10.232.23.46 | 10.232.23.47 |
| 103 | 10.232.23.48/29 | 10.232.23.49 – 10.232.23.54 | 10.232.23.55 |
| 104 | 10.232.23.56/29 | 10.232.23.57 – 10.232.23.62 | 10.232.23.63 |
| 105 | 10.232.23.64/29 | 10.232.23.65 – 10.232.23.70 | 10.232.23.71 |
| 106 | 10.232.23.72/29 | 10.232.23.73 – 10.232.23.78 | 10.232.23.79 |
| 107 | 10.232.23.80/29 | 10.232.23.81 – 10.232.23.86 | 10.232.23.87 |
| 108 | 10.232.23.88/29 | 10.232.23.89 – 10.232.23.94 | 10.232.23.95 |
| 109 | 10.232.23.96/29 | 10.232.23.97 – 10.232.23.102 | 10.232.23.103 |
| 110 | 10.232.23.104/29 | 10.232.23.105 – 10.232.23.110 | 10.232.23.111 |
| 111 | 10.232.23.112/29 | 10.232.23.113 – 10.232.23.118 | 10.232.23.119 |
| 112 | 10.232.23.120/29 | 10.232.23.121 – 10.232.23.126 | 10.232.23.127 |
| 113 | 10.232.23.128/29 | 10.232.23.129 – 10.232.23.134 | 10.232.23.135 |
| 114 | 10.232.23.136/29 | 10.232.23.137 – 10.232.23.142 | 10.232.23.143 |
| 115 | 10.232.23.144/29 | 10.232.23.145 – 10.232.23.150 | 10.232.23.151 |
| 116 | 10.232.23.152/29 | 10.232.23.153 – 10.232.23.158 | 10.232.23.159 |
| 117 | 10.232.23.160/29 | 10.232.23.161 – 10.232.23.166 | 10.232.23.167 |
| 118 | 10.232.23.168/29 | 10.232.23.169 – 10.232.23.174 | 10.232.23.175 |
| 119 | 10.232.23.176/29 | 10.232.23.177 – 10.232.23.182 | 10.232.23.183 |
| 120 | 10.232.23.184/29 | 10.232.23.185 – 10.232.23.190 | 10.232.23.191 |
| 121 | 10.232.23.192/29 | 10.232.23.193 – 10.232.23.198 | 10.232.23.199 |
| 122 | 10.232.23.200/29 | 10.232.23.201 – 10.232.23.206 | 10.232.23.207 |
| 123 | 10.232.23.208/29 | 10.232.23.209 – 10.232.23.214 | 10.232.23.215 |
| 124 | 10.232.23.216/29 | 10.232.23.217 – 10.232.23.222 | 10.232.23.223 |
| 125 | 10.232.23.224/29 | 10.232.23.225 – 10.232.23.230 | 10.232.23.231 |
| 126 | 10.232.23.232/29 | 10.232.23.233 – 10.232.23.238 | 10.232.23.239 |
| 127 | 10.232.23.240/29 | 10.232.23.241 – 10.232.23.246 | 10.232.23.247 |
| 128 | 10.232.23.248/29 | 10.232.23.249 – 10.232.23.254 | 10.232.23.255 |
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.