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)10.243.232.0/22
network10.243.232.0/22
broadcast10.243.235.255
first host10.243.232.1
last host10.243.235.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.243.232.0/22
address00001010.11110011.11101000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.11110011.11101000.00000000
broadcast00001010.11110011.11101011.11111111
green = network part, grey = host part
hex0x0af3e800
decimal183756800
reverse dns0.232.243.10.in-addr.arpa
ipv4-mapped::ffff:af3:e800
/22 split into /29 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.243.232.0/29 | 10.243.232.1 – 10.243.232.6 | 10.243.232.7 |
| 2 | 10.243.232.8/29 | 10.243.232.9 – 10.243.232.14 | 10.243.232.15 |
| 3 | 10.243.232.16/29 | 10.243.232.17 – 10.243.232.22 | 10.243.232.23 |
| 4 | 10.243.232.24/29 | 10.243.232.25 – 10.243.232.30 | 10.243.232.31 |
| 5 | 10.243.232.32/29 | 10.243.232.33 – 10.243.232.38 | 10.243.232.39 |
| 6 | 10.243.232.40/29 | 10.243.232.41 – 10.243.232.46 | 10.243.232.47 |
| 7 | 10.243.232.48/29 | 10.243.232.49 – 10.243.232.54 | 10.243.232.55 |
| 8 | 10.243.232.56/29 | 10.243.232.57 – 10.243.232.62 | 10.243.232.63 |
| 9 | 10.243.232.64/29 | 10.243.232.65 – 10.243.232.70 | 10.243.232.71 |
| 10 | 10.243.232.72/29 | 10.243.232.73 – 10.243.232.78 | 10.243.232.79 |
| 11 | 10.243.232.80/29 | 10.243.232.81 – 10.243.232.86 | 10.243.232.87 |
| 12 | 10.243.232.88/29 | 10.243.232.89 – 10.243.232.94 | 10.243.232.95 |
| 13 | 10.243.232.96/29 | 10.243.232.97 – 10.243.232.102 | 10.243.232.103 |
| 14 | 10.243.232.104/29 | 10.243.232.105 – 10.243.232.110 | 10.243.232.111 |
| 15 | 10.243.232.112/29 | 10.243.232.113 – 10.243.232.118 | 10.243.232.119 |
| 16 | 10.243.232.120/29 | 10.243.232.121 – 10.243.232.126 | 10.243.232.127 |
| 17 | 10.243.232.128/29 | 10.243.232.129 – 10.243.232.134 | 10.243.232.135 |
| 18 | 10.243.232.136/29 | 10.243.232.137 – 10.243.232.142 | 10.243.232.143 |
| 19 | 10.243.232.144/29 | 10.243.232.145 – 10.243.232.150 | 10.243.232.151 |
| 20 | 10.243.232.152/29 | 10.243.232.153 – 10.243.232.158 | 10.243.232.159 |
| 21 | 10.243.232.160/29 | 10.243.232.161 – 10.243.232.166 | 10.243.232.167 |
| 22 | 10.243.232.168/29 | 10.243.232.169 – 10.243.232.174 | 10.243.232.175 |
| 23 | 10.243.232.176/29 | 10.243.232.177 – 10.243.232.182 | 10.243.232.183 |
| 24 | 10.243.232.184/29 | 10.243.232.185 – 10.243.232.190 | 10.243.232.191 |
| 25 | 10.243.232.192/29 | 10.243.232.193 – 10.243.232.198 | 10.243.232.199 |
| 26 | 10.243.232.200/29 | 10.243.232.201 – 10.243.232.206 | 10.243.232.207 |
| 27 | 10.243.232.208/29 | 10.243.232.209 – 10.243.232.214 | 10.243.232.215 |
| 28 | 10.243.232.216/29 | 10.243.232.217 – 10.243.232.222 | 10.243.232.223 |
| 29 | 10.243.232.224/29 | 10.243.232.225 – 10.243.232.230 | 10.243.232.231 |
| 30 | 10.243.232.232/29 | 10.243.232.233 – 10.243.232.238 | 10.243.232.239 |
| 31 | 10.243.232.240/29 | 10.243.232.241 – 10.243.232.246 | 10.243.232.247 |
| 32 | 10.243.232.248/29 | 10.243.232.249 – 10.243.232.254 | 10.243.232.255 |
| 33 | 10.243.233.0/29 | 10.243.233.1 – 10.243.233.6 | 10.243.233.7 |
| 34 | 10.243.233.8/29 | 10.243.233.9 – 10.243.233.14 | 10.243.233.15 |
| 35 | 10.243.233.16/29 | 10.243.233.17 – 10.243.233.22 | 10.243.233.23 |
| 36 | 10.243.233.24/29 | 10.243.233.25 – 10.243.233.30 | 10.243.233.31 |
| 37 | 10.243.233.32/29 | 10.243.233.33 – 10.243.233.38 | 10.243.233.39 |
| 38 | 10.243.233.40/29 | 10.243.233.41 – 10.243.233.46 | 10.243.233.47 |
| 39 | 10.243.233.48/29 | 10.243.233.49 – 10.243.233.54 | 10.243.233.55 |
| 40 | 10.243.233.56/29 | 10.243.233.57 – 10.243.233.62 | 10.243.233.63 |
| 41 | 10.243.233.64/29 | 10.243.233.65 – 10.243.233.70 | 10.243.233.71 |
| 42 | 10.243.233.72/29 | 10.243.233.73 – 10.243.233.78 | 10.243.233.79 |
| 43 | 10.243.233.80/29 | 10.243.233.81 – 10.243.233.86 | 10.243.233.87 |
| 44 | 10.243.233.88/29 | 10.243.233.89 – 10.243.233.94 | 10.243.233.95 |
| 45 | 10.243.233.96/29 | 10.243.233.97 – 10.243.233.102 | 10.243.233.103 |
| 46 | 10.243.233.104/29 | 10.243.233.105 – 10.243.233.110 | 10.243.233.111 |
| 47 | 10.243.233.112/29 | 10.243.233.113 – 10.243.233.118 | 10.243.233.119 |
| 48 | 10.243.233.120/29 | 10.243.233.121 – 10.243.233.126 | 10.243.233.127 |
| 49 | 10.243.233.128/29 | 10.243.233.129 – 10.243.233.134 | 10.243.233.135 |
| 50 | 10.243.233.136/29 | 10.243.233.137 – 10.243.233.142 | 10.243.233.143 |
| 51 | 10.243.233.144/29 | 10.243.233.145 – 10.243.233.150 | 10.243.233.151 |
| 52 | 10.243.233.152/29 | 10.243.233.153 – 10.243.233.158 | 10.243.233.159 |
| 53 | 10.243.233.160/29 | 10.243.233.161 – 10.243.233.166 | 10.243.233.167 |
| 54 | 10.243.233.168/29 | 10.243.233.169 – 10.243.233.174 | 10.243.233.175 |
| 55 | 10.243.233.176/29 | 10.243.233.177 – 10.243.233.182 | 10.243.233.183 |
| 56 | 10.243.233.184/29 | 10.243.233.185 – 10.243.233.190 | 10.243.233.191 |
| 57 | 10.243.233.192/29 | 10.243.233.193 – 10.243.233.198 | 10.243.233.199 |
| 58 | 10.243.233.200/29 | 10.243.233.201 – 10.243.233.206 | 10.243.233.207 |
| 59 | 10.243.233.208/29 | 10.243.233.209 – 10.243.233.214 | 10.243.233.215 |
| 60 | 10.243.233.216/29 | 10.243.233.217 – 10.243.233.222 | 10.243.233.223 |
| 61 | 10.243.233.224/29 | 10.243.233.225 – 10.243.233.230 | 10.243.233.231 |
| 62 | 10.243.233.232/29 | 10.243.233.233 – 10.243.233.238 | 10.243.233.239 |
| 63 | 10.243.233.240/29 | 10.243.233.241 – 10.243.233.246 | 10.243.233.247 |
| 64 | 10.243.233.248/29 | 10.243.233.249 – 10.243.233.254 | 10.243.233.255 |
| 65 | 10.243.234.0/29 | 10.243.234.1 – 10.243.234.6 | 10.243.234.7 |
| 66 | 10.243.234.8/29 | 10.243.234.9 – 10.243.234.14 | 10.243.234.15 |
| 67 | 10.243.234.16/29 | 10.243.234.17 – 10.243.234.22 | 10.243.234.23 |
| 68 | 10.243.234.24/29 | 10.243.234.25 – 10.243.234.30 | 10.243.234.31 |
| 69 | 10.243.234.32/29 | 10.243.234.33 – 10.243.234.38 | 10.243.234.39 |
| 70 | 10.243.234.40/29 | 10.243.234.41 – 10.243.234.46 | 10.243.234.47 |
| 71 | 10.243.234.48/29 | 10.243.234.49 – 10.243.234.54 | 10.243.234.55 |
| 72 | 10.243.234.56/29 | 10.243.234.57 – 10.243.234.62 | 10.243.234.63 |
| 73 | 10.243.234.64/29 | 10.243.234.65 – 10.243.234.70 | 10.243.234.71 |
| 74 | 10.243.234.72/29 | 10.243.234.73 – 10.243.234.78 | 10.243.234.79 |
| 75 | 10.243.234.80/29 | 10.243.234.81 – 10.243.234.86 | 10.243.234.87 |
| 76 | 10.243.234.88/29 | 10.243.234.89 – 10.243.234.94 | 10.243.234.95 |
| 77 | 10.243.234.96/29 | 10.243.234.97 – 10.243.234.102 | 10.243.234.103 |
| 78 | 10.243.234.104/29 | 10.243.234.105 – 10.243.234.110 | 10.243.234.111 |
| 79 | 10.243.234.112/29 | 10.243.234.113 – 10.243.234.118 | 10.243.234.119 |
| 80 | 10.243.234.120/29 | 10.243.234.121 – 10.243.234.126 | 10.243.234.127 |
| 81 | 10.243.234.128/29 | 10.243.234.129 – 10.243.234.134 | 10.243.234.135 |
| 82 | 10.243.234.136/29 | 10.243.234.137 – 10.243.234.142 | 10.243.234.143 |
| 83 | 10.243.234.144/29 | 10.243.234.145 – 10.243.234.150 | 10.243.234.151 |
| 84 | 10.243.234.152/29 | 10.243.234.153 – 10.243.234.158 | 10.243.234.159 |
| 85 | 10.243.234.160/29 | 10.243.234.161 – 10.243.234.166 | 10.243.234.167 |
| 86 | 10.243.234.168/29 | 10.243.234.169 – 10.243.234.174 | 10.243.234.175 |
| 87 | 10.243.234.176/29 | 10.243.234.177 – 10.243.234.182 | 10.243.234.183 |
| 88 | 10.243.234.184/29 | 10.243.234.185 – 10.243.234.190 | 10.243.234.191 |
| 89 | 10.243.234.192/29 | 10.243.234.193 – 10.243.234.198 | 10.243.234.199 |
| 90 | 10.243.234.200/29 | 10.243.234.201 – 10.243.234.206 | 10.243.234.207 |
| 91 | 10.243.234.208/29 | 10.243.234.209 – 10.243.234.214 | 10.243.234.215 |
| 92 | 10.243.234.216/29 | 10.243.234.217 – 10.243.234.222 | 10.243.234.223 |
| 93 | 10.243.234.224/29 | 10.243.234.225 – 10.243.234.230 | 10.243.234.231 |
| 94 | 10.243.234.232/29 | 10.243.234.233 – 10.243.234.238 | 10.243.234.239 |
| 95 | 10.243.234.240/29 | 10.243.234.241 – 10.243.234.246 | 10.243.234.247 |
| 96 | 10.243.234.248/29 | 10.243.234.249 – 10.243.234.254 | 10.243.234.255 |
| 97 | 10.243.235.0/29 | 10.243.235.1 – 10.243.235.6 | 10.243.235.7 |
| 98 | 10.243.235.8/29 | 10.243.235.9 – 10.243.235.14 | 10.243.235.15 |
| 99 | 10.243.235.16/29 | 10.243.235.17 – 10.243.235.22 | 10.243.235.23 |
| 100 | 10.243.235.24/29 | 10.243.235.25 – 10.243.235.30 | 10.243.235.31 |
| 101 | 10.243.235.32/29 | 10.243.235.33 – 10.243.235.38 | 10.243.235.39 |
| 102 | 10.243.235.40/29 | 10.243.235.41 – 10.243.235.46 | 10.243.235.47 |
| 103 | 10.243.235.48/29 | 10.243.235.49 – 10.243.235.54 | 10.243.235.55 |
| 104 | 10.243.235.56/29 | 10.243.235.57 – 10.243.235.62 | 10.243.235.63 |
| 105 | 10.243.235.64/29 | 10.243.235.65 – 10.243.235.70 | 10.243.235.71 |
| 106 | 10.243.235.72/29 | 10.243.235.73 – 10.243.235.78 | 10.243.235.79 |
| 107 | 10.243.235.80/29 | 10.243.235.81 – 10.243.235.86 | 10.243.235.87 |
| 108 | 10.243.235.88/29 | 10.243.235.89 – 10.243.235.94 | 10.243.235.95 |
| 109 | 10.243.235.96/29 | 10.243.235.97 – 10.243.235.102 | 10.243.235.103 |
| 110 | 10.243.235.104/29 | 10.243.235.105 – 10.243.235.110 | 10.243.235.111 |
| 111 | 10.243.235.112/29 | 10.243.235.113 – 10.243.235.118 | 10.243.235.119 |
| 112 | 10.243.235.120/29 | 10.243.235.121 – 10.243.235.126 | 10.243.235.127 |
| 113 | 10.243.235.128/29 | 10.243.235.129 – 10.243.235.134 | 10.243.235.135 |
| 114 | 10.243.235.136/29 | 10.243.235.137 – 10.243.235.142 | 10.243.235.143 |
| 115 | 10.243.235.144/29 | 10.243.235.145 – 10.243.235.150 | 10.243.235.151 |
| 116 | 10.243.235.152/29 | 10.243.235.153 – 10.243.235.158 | 10.243.235.159 |
| 117 | 10.243.235.160/29 | 10.243.235.161 – 10.243.235.166 | 10.243.235.167 |
| 118 | 10.243.235.168/29 | 10.243.235.169 – 10.243.235.174 | 10.243.235.175 |
| 119 | 10.243.235.176/29 | 10.243.235.177 – 10.243.235.182 | 10.243.235.183 |
| 120 | 10.243.235.184/29 | 10.243.235.185 – 10.243.235.190 | 10.243.235.191 |
| 121 | 10.243.235.192/29 | 10.243.235.193 – 10.243.235.198 | 10.243.235.199 |
| 122 | 10.243.235.200/29 | 10.243.235.201 – 10.243.235.206 | 10.243.235.207 |
| 123 | 10.243.235.208/29 | 10.243.235.209 – 10.243.235.214 | 10.243.235.215 |
| 124 | 10.243.235.216/29 | 10.243.235.217 – 10.243.235.222 | 10.243.235.223 |
| 125 | 10.243.235.224/29 | 10.243.235.225 – 10.243.235.230 | 10.243.235.231 |
| 126 | 10.243.235.232/29 | 10.243.235.233 – 10.243.235.238 | 10.243.235.239 |
| 127 | 10.243.235.240/29 | 10.243.235.241 – 10.243.235.246 | 10.243.235.247 |
| 128 | 10.243.235.248/29 | 10.243.235.249 – 10.243.235.254 | 10.243.235.255 |
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.