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)10.239.32.0/22
network10.239.32.0/22
broadcast10.239.35.255
first host10.239.32.1
last host10.239.35.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.239.32.0/22
address00001010.11101111.00100000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.11101111.00100000.00000000
broadcast00001010.11101111.00100011.11111111
green = network part, grey = host part
hex0x0aef2000
decimal183443456
reverse dns0.32.239.10.in-addr.arpa
ipv4-mapped::ffff:aef:2000
/22 split into /29 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.239.32.0/29 | 10.239.32.1 – 10.239.32.6 | 10.239.32.7 |
| 2 | 10.239.32.8/29 | 10.239.32.9 – 10.239.32.14 | 10.239.32.15 |
| 3 | 10.239.32.16/29 | 10.239.32.17 – 10.239.32.22 | 10.239.32.23 |
| 4 | 10.239.32.24/29 | 10.239.32.25 – 10.239.32.30 | 10.239.32.31 |
| 5 | 10.239.32.32/29 | 10.239.32.33 – 10.239.32.38 | 10.239.32.39 |
| 6 | 10.239.32.40/29 | 10.239.32.41 – 10.239.32.46 | 10.239.32.47 |
| 7 | 10.239.32.48/29 | 10.239.32.49 – 10.239.32.54 | 10.239.32.55 |
| 8 | 10.239.32.56/29 | 10.239.32.57 – 10.239.32.62 | 10.239.32.63 |
| 9 | 10.239.32.64/29 | 10.239.32.65 – 10.239.32.70 | 10.239.32.71 |
| 10 | 10.239.32.72/29 | 10.239.32.73 – 10.239.32.78 | 10.239.32.79 |
| 11 | 10.239.32.80/29 | 10.239.32.81 – 10.239.32.86 | 10.239.32.87 |
| 12 | 10.239.32.88/29 | 10.239.32.89 – 10.239.32.94 | 10.239.32.95 |
| 13 | 10.239.32.96/29 | 10.239.32.97 – 10.239.32.102 | 10.239.32.103 |
| 14 | 10.239.32.104/29 | 10.239.32.105 – 10.239.32.110 | 10.239.32.111 |
| 15 | 10.239.32.112/29 | 10.239.32.113 – 10.239.32.118 | 10.239.32.119 |
| 16 | 10.239.32.120/29 | 10.239.32.121 – 10.239.32.126 | 10.239.32.127 |
| 17 | 10.239.32.128/29 | 10.239.32.129 – 10.239.32.134 | 10.239.32.135 |
| 18 | 10.239.32.136/29 | 10.239.32.137 – 10.239.32.142 | 10.239.32.143 |
| 19 | 10.239.32.144/29 | 10.239.32.145 – 10.239.32.150 | 10.239.32.151 |
| 20 | 10.239.32.152/29 | 10.239.32.153 – 10.239.32.158 | 10.239.32.159 |
| 21 | 10.239.32.160/29 | 10.239.32.161 – 10.239.32.166 | 10.239.32.167 |
| 22 | 10.239.32.168/29 | 10.239.32.169 – 10.239.32.174 | 10.239.32.175 |
| 23 | 10.239.32.176/29 | 10.239.32.177 – 10.239.32.182 | 10.239.32.183 |
| 24 | 10.239.32.184/29 | 10.239.32.185 – 10.239.32.190 | 10.239.32.191 |
| 25 | 10.239.32.192/29 | 10.239.32.193 – 10.239.32.198 | 10.239.32.199 |
| 26 | 10.239.32.200/29 | 10.239.32.201 – 10.239.32.206 | 10.239.32.207 |
| 27 | 10.239.32.208/29 | 10.239.32.209 – 10.239.32.214 | 10.239.32.215 |
| 28 | 10.239.32.216/29 | 10.239.32.217 – 10.239.32.222 | 10.239.32.223 |
| 29 | 10.239.32.224/29 | 10.239.32.225 – 10.239.32.230 | 10.239.32.231 |
| 30 | 10.239.32.232/29 | 10.239.32.233 – 10.239.32.238 | 10.239.32.239 |
| 31 | 10.239.32.240/29 | 10.239.32.241 – 10.239.32.246 | 10.239.32.247 |
| 32 | 10.239.32.248/29 | 10.239.32.249 – 10.239.32.254 | 10.239.32.255 |
| 33 | 10.239.33.0/29 | 10.239.33.1 – 10.239.33.6 | 10.239.33.7 |
| 34 | 10.239.33.8/29 | 10.239.33.9 – 10.239.33.14 | 10.239.33.15 |
| 35 | 10.239.33.16/29 | 10.239.33.17 – 10.239.33.22 | 10.239.33.23 |
| 36 | 10.239.33.24/29 | 10.239.33.25 – 10.239.33.30 | 10.239.33.31 |
| 37 | 10.239.33.32/29 | 10.239.33.33 – 10.239.33.38 | 10.239.33.39 |
| 38 | 10.239.33.40/29 | 10.239.33.41 – 10.239.33.46 | 10.239.33.47 |
| 39 | 10.239.33.48/29 | 10.239.33.49 – 10.239.33.54 | 10.239.33.55 |
| 40 | 10.239.33.56/29 | 10.239.33.57 – 10.239.33.62 | 10.239.33.63 |
| 41 | 10.239.33.64/29 | 10.239.33.65 – 10.239.33.70 | 10.239.33.71 |
| 42 | 10.239.33.72/29 | 10.239.33.73 – 10.239.33.78 | 10.239.33.79 |
| 43 | 10.239.33.80/29 | 10.239.33.81 – 10.239.33.86 | 10.239.33.87 |
| 44 | 10.239.33.88/29 | 10.239.33.89 – 10.239.33.94 | 10.239.33.95 |
| 45 | 10.239.33.96/29 | 10.239.33.97 – 10.239.33.102 | 10.239.33.103 |
| 46 | 10.239.33.104/29 | 10.239.33.105 – 10.239.33.110 | 10.239.33.111 |
| 47 | 10.239.33.112/29 | 10.239.33.113 – 10.239.33.118 | 10.239.33.119 |
| 48 | 10.239.33.120/29 | 10.239.33.121 – 10.239.33.126 | 10.239.33.127 |
| 49 | 10.239.33.128/29 | 10.239.33.129 – 10.239.33.134 | 10.239.33.135 |
| 50 | 10.239.33.136/29 | 10.239.33.137 – 10.239.33.142 | 10.239.33.143 |
| 51 | 10.239.33.144/29 | 10.239.33.145 – 10.239.33.150 | 10.239.33.151 |
| 52 | 10.239.33.152/29 | 10.239.33.153 – 10.239.33.158 | 10.239.33.159 |
| 53 | 10.239.33.160/29 | 10.239.33.161 – 10.239.33.166 | 10.239.33.167 |
| 54 | 10.239.33.168/29 | 10.239.33.169 – 10.239.33.174 | 10.239.33.175 |
| 55 | 10.239.33.176/29 | 10.239.33.177 – 10.239.33.182 | 10.239.33.183 |
| 56 | 10.239.33.184/29 | 10.239.33.185 – 10.239.33.190 | 10.239.33.191 |
| 57 | 10.239.33.192/29 | 10.239.33.193 – 10.239.33.198 | 10.239.33.199 |
| 58 | 10.239.33.200/29 | 10.239.33.201 – 10.239.33.206 | 10.239.33.207 |
| 59 | 10.239.33.208/29 | 10.239.33.209 – 10.239.33.214 | 10.239.33.215 |
| 60 | 10.239.33.216/29 | 10.239.33.217 – 10.239.33.222 | 10.239.33.223 |
| 61 | 10.239.33.224/29 | 10.239.33.225 – 10.239.33.230 | 10.239.33.231 |
| 62 | 10.239.33.232/29 | 10.239.33.233 – 10.239.33.238 | 10.239.33.239 |
| 63 | 10.239.33.240/29 | 10.239.33.241 – 10.239.33.246 | 10.239.33.247 |
| 64 | 10.239.33.248/29 | 10.239.33.249 – 10.239.33.254 | 10.239.33.255 |
| 65 | 10.239.34.0/29 | 10.239.34.1 – 10.239.34.6 | 10.239.34.7 |
| 66 | 10.239.34.8/29 | 10.239.34.9 – 10.239.34.14 | 10.239.34.15 |
| 67 | 10.239.34.16/29 | 10.239.34.17 – 10.239.34.22 | 10.239.34.23 |
| 68 | 10.239.34.24/29 | 10.239.34.25 – 10.239.34.30 | 10.239.34.31 |
| 69 | 10.239.34.32/29 | 10.239.34.33 – 10.239.34.38 | 10.239.34.39 |
| 70 | 10.239.34.40/29 | 10.239.34.41 – 10.239.34.46 | 10.239.34.47 |
| 71 | 10.239.34.48/29 | 10.239.34.49 – 10.239.34.54 | 10.239.34.55 |
| 72 | 10.239.34.56/29 | 10.239.34.57 – 10.239.34.62 | 10.239.34.63 |
| 73 | 10.239.34.64/29 | 10.239.34.65 – 10.239.34.70 | 10.239.34.71 |
| 74 | 10.239.34.72/29 | 10.239.34.73 – 10.239.34.78 | 10.239.34.79 |
| 75 | 10.239.34.80/29 | 10.239.34.81 – 10.239.34.86 | 10.239.34.87 |
| 76 | 10.239.34.88/29 | 10.239.34.89 – 10.239.34.94 | 10.239.34.95 |
| 77 | 10.239.34.96/29 | 10.239.34.97 – 10.239.34.102 | 10.239.34.103 |
| 78 | 10.239.34.104/29 | 10.239.34.105 – 10.239.34.110 | 10.239.34.111 |
| 79 | 10.239.34.112/29 | 10.239.34.113 – 10.239.34.118 | 10.239.34.119 |
| 80 | 10.239.34.120/29 | 10.239.34.121 – 10.239.34.126 | 10.239.34.127 |
| 81 | 10.239.34.128/29 | 10.239.34.129 – 10.239.34.134 | 10.239.34.135 |
| 82 | 10.239.34.136/29 | 10.239.34.137 – 10.239.34.142 | 10.239.34.143 |
| 83 | 10.239.34.144/29 | 10.239.34.145 – 10.239.34.150 | 10.239.34.151 |
| 84 | 10.239.34.152/29 | 10.239.34.153 – 10.239.34.158 | 10.239.34.159 |
| 85 | 10.239.34.160/29 | 10.239.34.161 – 10.239.34.166 | 10.239.34.167 |
| 86 | 10.239.34.168/29 | 10.239.34.169 – 10.239.34.174 | 10.239.34.175 |
| 87 | 10.239.34.176/29 | 10.239.34.177 – 10.239.34.182 | 10.239.34.183 |
| 88 | 10.239.34.184/29 | 10.239.34.185 – 10.239.34.190 | 10.239.34.191 |
| 89 | 10.239.34.192/29 | 10.239.34.193 – 10.239.34.198 | 10.239.34.199 |
| 90 | 10.239.34.200/29 | 10.239.34.201 – 10.239.34.206 | 10.239.34.207 |
| 91 | 10.239.34.208/29 | 10.239.34.209 – 10.239.34.214 | 10.239.34.215 |
| 92 | 10.239.34.216/29 | 10.239.34.217 – 10.239.34.222 | 10.239.34.223 |
| 93 | 10.239.34.224/29 | 10.239.34.225 – 10.239.34.230 | 10.239.34.231 |
| 94 | 10.239.34.232/29 | 10.239.34.233 – 10.239.34.238 | 10.239.34.239 |
| 95 | 10.239.34.240/29 | 10.239.34.241 – 10.239.34.246 | 10.239.34.247 |
| 96 | 10.239.34.248/29 | 10.239.34.249 – 10.239.34.254 | 10.239.34.255 |
| 97 | 10.239.35.0/29 | 10.239.35.1 – 10.239.35.6 | 10.239.35.7 |
| 98 | 10.239.35.8/29 | 10.239.35.9 – 10.239.35.14 | 10.239.35.15 |
| 99 | 10.239.35.16/29 | 10.239.35.17 – 10.239.35.22 | 10.239.35.23 |
| 100 | 10.239.35.24/29 | 10.239.35.25 – 10.239.35.30 | 10.239.35.31 |
| 101 | 10.239.35.32/29 | 10.239.35.33 – 10.239.35.38 | 10.239.35.39 |
| 102 | 10.239.35.40/29 | 10.239.35.41 – 10.239.35.46 | 10.239.35.47 |
| 103 | 10.239.35.48/29 | 10.239.35.49 – 10.239.35.54 | 10.239.35.55 |
| 104 | 10.239.35.56/29 | 10.239.35.57 – 10.239.35.62 | 10.239.35.63 |
| 105 | 10.239.35.64/29 | 10.239.35.65 – 10.239.35.70 | 10.239.35.71 |
| 106 | 10.239.35.72/29 | 10.239.35.73 – 10.239.35.78 | 10.239.35.79 |
| 107 | 10.239.35.80/29 | 10.239.35.81 – 10.239.35.86 | 10.239.35.87 |
| 108 | 10.239.35.88/29 | 10.239.35.89 – 10.239.35.94 | 10.239.35.95 |
| 109 | 10.239.35.96/29 | 10.239.35.97 – 10.239.35.102 | 10.239.35.103 |
| 110 | 10.239.35.104/29 | 10.239.35.105 – 10.239.35.110 | 10.239.35.111 |
| 111 | 10.239.35.112/29 | 10.239.35.113 – 10.239.35.118 | 10.239.35.119 |
| 112 | 10.239.35.120/29 | 10.239.35.121 – 10.239.35.126 | 10.239.35.127 |
| 113 | 10.239.35.128/29 | 10.239.35.129 – 10.239.35.134 | 10.239.35.135 |
| 114 | 10.239.35.136/29 | 10.239.35.137 – 10.239.35.142 | 10.239.35.143 |
| 115 | 10.239.35.144/29 | 10.239.35.145 – 10.239.35.150 | 10.239.35.151 |
| 116 | 10.239.35.152/29 | 10.239.35.153 – 10.239.35.158 | 10.239.35.159 |
| 117 | 10.239.35.160/29 | 10.239.35.161 – 10.239.35.166 | 10.239.35.167 |
| 118 | 10.239.35.168/29 | 10.239.35.169 – 10.239.35.174 | 10.239.35.175 |
| 119 | 10.239.35.176/29 | 10.239.35.177 – 10.239.35.182 | 10.239.35.183 |
| 120 | 10.239.35.184/29 | 10.239.35.185 – 10.239.35.190 | 10.239.35.191 |
| 121 | 10.239.35.192/29 | 10.239.35.193 – 10.239.35.198 | 10.239.35.199 |
| 122 | 10.239.35.200/29 | 10.239.35.201 – 10.239.35.206 | 10.239.35.207 |
| 123 | 10.239.35.208/29 | 10.239.35.209 – 10.239.35.214 | 10.239.35.215 |
| 124 | 10.239.35.216/29 | 10.239.35.217 – 10.239.35.222 | 10.239.35.223 |
| 125 | 10.239.35.224/29 | 10.239.35.225 – 10.239.35.230 | 10.239.35.231 |
| 126 | 10.239.35.232/29 | 10.239.35.233 – 10.239.35.238 | 10.239.35.239 |
| 127 | 10.239.35.240/29 | 10.239.35.241 – 10.239.35.246 | 10.239.35.247 |
| 128 | 10.239.35.248/29 | 10.239.35.249 – 10.239.35.254 | 10.239.35.255 |
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.