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)10.167.216.0/22
network10.167.216.0/22
broadcast10.167.219.255
first host10.167.216.1
last host10.167.219.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.167.216.0/22
address00001010.10100111.11011000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.10100111.11011000.00000000
broadcast00001010.10100111.11011011.11111111
green = network part, grey = host part
hex0x0aa7d800
decimal178771968
reverse dns0.216.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:d800
/22 split into /29 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.167.216.0/29 | 10.167.216.1 – 10.167.216.6 | 10.167.216.7 |
| 2 | 10.167.216.8/29 | 10.167.216.9 – 10.167.216.14 | 10.167.216.15 |
| 3 | 10.167.216.16/29 | 10.167.216.17 – 10.167.216.22 | 10.167.216.23 |
| 4 | 10.167.216.24/29 | 10.167.216.25 – 10.167.216.30 | 10.167.216.31 |
| 5 | 10.167.216.32/29 | 10.167.216.33 – 10.167.216.38 | 10.167.216.39 |
| 6 | 10.167.216.40/29 | 10.167.216.41 – 10.167.216.46 | 10.167.216.47 |
| 7 | 10.167.216.48/29 | 10.167.216.49 – 10.167.216.54 | 10.167.216.55 |
| 8 | 10.167.216.56/29 | 10.167.216.57 – 10.167.216.62 | 10.167.216.63 |
| 9 | 10.167.216.64/29 | 10.167.216.65 – 10.167.216.70 | 10.167.216.71 |
| 10 | 10.167.216.72/29 | 10.167.216.73 – 10.167.216.78 | 10.167.216.79 |
| 11 | 10.167.216.80/29 | 10.167.216.81 – 10.167.216.86 | 10.167.216.87 |
| 12 | 10.167.216.88/29 | 10.167.216.89 – 10.167.216.94 | 10.167.216.95 |
| 13 | 10.167.216.96/29 | 10.167.216.97 – 10.167.216.102 | 10.167.216.103 |
| 14 | 10.167.216.104/29 | 10.167.216.105 – 10.167.216.110 | 10.167.216.111 |
| 15 | 10.167.216.112/29 | 10.167.216.113 – 10.167.216.118 | 10.167.216.119 |
| 16 | 10.167.216.120/29 | 10.167.216.121 – 10.167.216.126 | 10.167.216.127 |
| 17 | 10.167.216.128/29 | 10.167.216.129 – 10.167.216.134 | 10.167.216.135 |
| 18 | 10.167.216.136/29 | 10.167.216.137 – 10.167.216.142 | 10.167.216.143 |
| 19 | 10.167.216.144/29 | 10.167.216.145 – 10.167.216.150 | 10.167.216.151 |
| 20 | 10.167.216.152/29 | 10.167.216.153 – 10.167.216.158 | 10.167.216.159 |
| 21 | 10.167.216.160/29 | 10.167.216.161 – 10.167.216.166 | 10.167.216.167 |
| 22 | 10.167.216.168/29 | 10.167.216.169 – 10.167.216.174 | 10.167.216.175 |
| 23 | 10.167.216.176/29 | 10.167.216.177 – 10.167.216.182 | 10.167.216.183 |
| 24 | 10.167.216.184/29 | 10.167.216.185 – 10.167.216.190 | 10.167.216.191 |
| 25 | 10.167.216.192/29 | 10.167.216.193 – 10.167.216.198 | 10.167.216.199 |
| 26 | 10.167.216.200/29 | 10.167.216.201 – 10.167.216.206 | 10.167.216.207 |
| 27 | 10.167.216.208/29 | 10.167.216.209 – 10.167.216.214 | 10.167.216.215 |
| 28 | 10.167.216.216/29 | 10.167.216.217 – 10.167.216.222 | 10.167.216.223 |
| 29 | 10.167.216.224/29 | 10.167.216.225 – 10.167.216.230 | 10.167.216.231 |
| 30 | 10.167.216.232/29 | 10.167.216.233 – 10.167.216.238 | 10.167.216.239 |
| 31 | 10.167.216.240/29 | 10.167.216.241 – 10.167.216.246 | 10.167.216.247 |
| 32 | 10.167.216.248/29 | 10.167.216.249 – 10.167.216.254 | 10.167.216.255 |
| 33 | 10.167.217.0/29 | 10.167.217.1 – 10.167.217.6 | 10.167.217.7 |
| 34 | 10.167.217.8/29 | 10.167.217.9 – 10.167.217.14 | 10.167.217.15 |
| 35 | 10.167.217.16/29 | 10.167.217.17 – 10.167.217.22 | 10.167.217.23 |
| 36 | 10.167.217.24/29 | 10.167.217.25 – 10.167.217.30 | 10.167.217.31 |
| 37 | 10.167.217.32/29 | 10.167.217.33 – 10.167.217.38 | 10.167.217.39 |
| 38 | 10.167.217.40/29 | 10.167.217.41 – 10.167.217.46 | 10.167.217.47 |
| 39 | 10.167.217.48/29 | 10.167.217.49 – 10.167.217.54 | 10.167.217.55 |
| 40 | 10.167.217.56/29 | 10.167.217.57 – 10.167.217.62 | 10.167.217.63 |
| 41 | 10.167.217.64/29 | 10.167.217.65 – 10.167.217.70 | 10.167.217.71 |
| 42 | 10.167.217.72/29 | 10.167.217.73 – 10.167.217.78 | 10.167.217.79 |
| 43 | 10.167.217.80/29 | 10.167.217.81 – 10.167.217.86 | 10.167.217.87 |
| 44 | 10.167.217.88/29 | 10.167.217.89 – 10.167.217.94 | 10.167.217.95 |
| 45 | 10.167.217.96/29 | 10.167.217.97 – 10.167.217.102 | 10.167.217.103 |
| 46 | 10.167.217.104/29 | 10.167.217.105 – 10.167.217.110 | 10.167.217.111 |
| 47 | 10.167.217.112/29 | 10.167.217.113 – 10.167.217.118 | 10.167.217.119 |
| 48 | 10.167.217.120/29 | 10.167.217.121 – 10.167.217.126 | 10.167.217.127 |
| 49 | 10.167.217.128/29 | 10.167.217.129 – 10.167.217.134 | 10.167.217.135 |
| 50 | 10.167.217.136/29 | 10.167.217.137 – 10.167.217.142 | 10.167.217.143 |
| 51 | 10.167.217.144/29 | 10.167.217.145 – 10.167.217.150 | 10.167.217.151 |
| 52 | 10.167.217.152/29 | 10.167.217.153 – 10.167.217.158 | 10.167.217.159 |
| 53 | 10.167.217.160/29 | 10.167.217.161 – 10.167.217.166 | 10.167.217.167 |
| 54 | 10.167.217.168/29 | 10.167.217.169 – 10.167.217.174 | 10.167.217.175 |
| 55 | 10.167.217.176/29 | 10.167.217.177 – 10.167.217.182 | 10.167.217.183 |
| 56 | 10.167.217.184/29 | 10.167.217.185 – 10.167.217.190 | 10.167.217.191 |
| 57 | 10.167.217.192/29 | 10.167.217.193 – 10.167.217.198 | 10.167.217.199 |
| 58 | 10.167.217.200/29 | 10.167.217.201 – 10.167.217.206 | 10.167.217.207 |
| 59 | 10.167.217.208/29 | 10.167.217.209 – 10.167.217.214 | 10.167.217.215 |
| 60 | 10.167.217.216/29 | 10.167.217.217 – 10.167.217.222 | 10.167.217.223 |
| 61 | 10.167.217.224/29 | 10.167.217.225 – 10.167.217.230 | 10.167.217.231 |
| 62 | 10.167.217.232/29 | 10.167.217.233 – 10.167.217.238 | 10.167.217.239 |
| 63 | 10.167.217.240/29 | 10.167.217.241 – 10.167.217.246 | 10.167.217.247 |
| 64 | 10.167.217.248/29 | 10.167.217.249 – 10.167.217.254 | 10.167.217.255 |
| 65 | 10.167.218.0/29 | 10.167.218.1 – 10.167.218.6 | 10.167.218.7 |
| 66 | 10.167.218.8/29 | 10.167.218.9 – 10.167.218.14 | 10.167.218.15 |
| 67 | 10.167.218.16/29 | 10.167.218.17 – 10.167.218.22 | 10.167.218.23 |
| 68 | 10.167.218.24/29 | 10.167.218.25 – 10.167.218.30 | 10.167.218.31 |
| 69 | 10.167.218.32/29 | 10.167.218.33 – 10.167.218.38 | 10.167.218.39 |
| 70 | 10.167.218.40/29 | 10.167.218.41 – 10.167.218.46 | 10.167.218.47 |
| 71 | 10.167.218.48/29 | 10.167.218.49 – 10.167.218.54 | 10.167.218.55 |
| 72 | 10.167.218.56/29 | 10.167.218.57 – 10.167.218.62 | 10.167.218.63 |
| 73 | 10.167.218.64/29 | 10.167.218.65 – 10.167.218.70 | 10.167.218.71 |
| 74 | 10.167.218.72/29 | 10.167.218.73 – 10.167.218.78 | 10.167.218.79 |
| 75 | 10.167.218.80/29 | 10.167.218.81 – 10.167.218.86 | 10.167.218.87 |
| 76 | 10.167.218.88/29 | 10.167.218.89 – 10.167.218.94 | 10.167.218.95 |
| 77 | 10.167.218.96/29 | 10.167.218.97 – 10.167.218.102 | 10.167.218.103 |
| 78 | 10.167.218.104/29 | 10.167.218.105 – 10.167.218.110 | 10.167.218.111 |
| 79 | 10.167.218.112/29 | 10.167.218.113 – 10.167.218.118 | 10.167.218.119 |
| 80 | 10.167.218.120/29 | 10.167.218.121 – 10.167.218.126 | 10.167.218.127 |
| 81 | 10.167.218.128/29 | 10.167.218.129 – 10.167.218.134 | 10.167.218.135 |
| 82 | 10.167.218.136/29 | 10.167.218.137 – 10.167.218.142 | 10.167.218.143 |
| 83 | 10.167.218.144/29 | 10.167.218.145 – 10.167.218.150 | 10.167.218.151 |
| 84 | 10.167.218.152/29 | 10.167.218.153 – 10.167.218.158 | 10.167.218.159 |
| 85 | 10.167.218.160/29 | 10.167.218.161 – 10.167.218.166 | 10.167.218.167 |
| 86 | 10.167.218.168/29 | 10.167.218.169 – 10.167.218.174 | 10.167.218.175 |
| 87 | 10.167.218.176/29 | 10.167.218.177 – 10.167.218.182 | 10.167.218.183 |
| 88 | 10.167.218.184/29 | 10.167.218.185 – 10.167.218.190 | 10.167.218.191 |
| 89 | 10.167.218.192/29 | 10.167.218.193 – 10.167.218.198 | 10.167.218.199 |
| 90 | 10.167.218.200/29 | 10.167.218.201 – 10.167.218.206 | 10.167.218.207 |
| 91 | 10.167.218.208/29 | 10.167.218.209 – 10.167.218.214 | 10.167.218.215 |
| 92 | 10.167.218.216/29 | 10.167.218.217 – 10.167.218.222 | 10.167.218.223 |
| 93 | 10.167.218.224/29 | 10.167.218.225 – 10.167.218.230 | 10.167.218.231 |
| 94 | 10.167.218.232/29 | 10.167.218.233 – 10.167.218.238 | 10.167.218.239 |
| 95 | 10.167.218.240/29 | 10.167.218.241 – 10.167.218.246 | 10.167.218.247 |
| 96 | 10.167.218.248/29 | 10.167.218.249 – 10.167.218.254 | 10.167.218.255 |
| 97 | 10.167.219.0/29 | 10.167.219.1 – 10.167.219.6 | 10.167.219.7 |
| 98 | 10.167.219.8/29 | 10.167.219.9 – 10.167.219.14 | 10.167.219.15 |
| 99 | 10.167.219.16/29 | 10.167.219.17 – 10.167.219.22 | 10.167.219.23 |
| 100 | 10.167.219.24/29 | 10.167.219.25 – 10.167.219.30 | 10.167.219.31 |
| 101 | 10.167.219.32/29 | 10.167.219.33 – 10.167.219.38 | 10.167.219.39 |
| 102 | 10.167.219.40/29 | 10.167.219.41 – 10.167.219.46 | 10.167.219.47 |
| 103 | 10.167.219.48/29 | 10.167.219.49 – 10.167.219.54 | 10.167.219.55 |
| 104 | 10.167.219.56/29 | 10.167.219.57 – 10.167.219.62 | 10.167.219.63 |
| 105 | 10.167.219.64/29 | 10.167.219.65 – 10.167.219.70 | 10.167.219.71 |
| 106 | 10.167.219.72/29 | 10.167.219.73 – 10.167.219.78 | 10.167.219.79 |
| 107 | 10.167.219.80/29 | 10.167.219.81 – 10.167.219.86 | 10.167.219.87 |
| 108 | 10.167.219.88/29 | 10.167.219.89 – 10.167.219.94 | 10.167.219.95 |
| 109 | 10.167.219.96/29 | 10.167.219.97 – 10.167.219.102 | 10.167.219.103 |
| 110 | 10.167.219.104/29 | 10.167.219.105 – 10.167.219.110 | 10.167.219.111 |
| 111 | 10.167.219.112/29 | 10.167.219.113 – 10.167.219.118 | 10.167.219.119 |
| 112 | 10.167.219.120/29 | 10.167.219.121 – 10.167.219.126 | 10.167.219.127 |
| 113 | 10.167.219.128/29 | 10.167.219.129 – 10.167.219.134 | 10.167.219.135 |
| 114 | 10.167.219.136/29 | 10.167.219.137 – 10.167.219.142 | 10.167.219.143 |
| 115 | 10.167.219.144/29 | 10.167.219.145 – 10.167.219.150 | 10.167.219.151 |
| 116 | 10.167.219.152/29 | 10.167.219.153 – 10.167.219.158 | 10.167.219.159 |
| 117 | 10.167.219.160/29 | 10.167.219.161 – 10.167.219.166 | 10.167.219.167 |
| 118 | 10.167.219.168/29 | 10.167.219.169 – 10.167.219.174 | 10.167.219.175 |
| 119 | 10.167.219.176/29 | 10.167.219.177 – 10.167.219.182 | 10.167.219.183 |
| 120 | 10.167.219.184/29 | 10.167.219.185 – 10.167.219.190 | 10.167.219.191 |
| 121 | 10.167.219.192/29 | 10.167.219.193 – 10.167.219.198 | 10.167.219.199 |
| 122 | 10.167.219.200/29 | 10.167.219.201 – 10.167.219.206 | 10.167.219.207 |
| 123 | 10.167.219.208/29 | 10.167.219.209 – 10.167.219.214 | 10.167.219.215 |
| 124 | 10.167.219.216/29 | 10.167.219.217 – 10.167.219.222 | 10.167.219.223 |
| 125 | 10.167.219.224/29 | 10.167.219.225 – 10.167.219.230 | 10.167.219.231 |
| 126 | 10.167.219.232/29 | 10.167.219.233 – 10.167.219.238 | 10.167.219.239 |
| 127 | 10.167.219.240/29 | 10.167.219.241 – 10.167.219.246 | 10.167.219.247 |
| 128 | 10.167.219.248/29 | 10.167.219.249 – 10.167.219.254 | 10.167.219.255 |
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.