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)10.167.180.0/22
network10.167.180.0/22
broadcast10.167.183.255
first host10.167.180.1
last host10.167.183.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.167.180.0/22
address00001010.10100111.10110100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.10100111.10110100.00000000
broadcast00001010.10100111.10110111.11111111
green = network part, grey = host part
hex0x0aa7b400
decimal178762752
reverse dns0.180.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:b400
/22 split into /29 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.167.180.0/29 | 10.167.180.1 – 10.167.180.6 | 10.167.180.7 |
| 2 | 10.167.180.8/29 | 10.167.180.9 – 10.167.180.14 | 10.167.180.15 |
| 3 | 10.167.180.16/29 | 10.167.180.17 – 10.167.180.22 | 10.167.180.23 |
| 4 | 10.167.180.24/29 | 10.167.180.25 – 10.167.180.30 | 10.167.180.31 |
| 5 | 10.167.180.32/29 | 10.167.180.33 – 10.167.180.38 | 10.167.180.39 |
| 6 | 10.167.180.40/29 | 10.167.180.41 – 10.167.180.46 | 10.167.180.47 |
| 7 | 10.167.180.48/29 | 10.167.180.49 – 10.167.180.54 | 10.167.180.55 |
| 8 | 10.167.180.56/29 | 10.167.180.57 – 10.167.180.62 | 10.167.180.63 |
| 9 | 10.167.180.64/29 | 10.167.180.65 – 10.167.180.70 | 10.167.180.71 |
| 10 | 10.167.180.72/29 | 10.167.180.73 – 10.167.180.78 | 10.167.180.79 |
| 11 | 10.167.180.80/29 | 10.167.180.81 – 10.167.180.86 | 10.167.180.87 |
| 12 | 10.167.180.88/29 | 10.167.180.89 – 10.167.180.94 | 10.167.180.95 |
| 13 | 10.167.180.96/29 | 10.167.180.97 – 10.167.180.102 | 10.167.180.103 |
| 14 | 10.167.180.104/29 | 10.167.180.105 – 10.167.180.110 | 10.167.180.111 |
| 15 | 10.167.180.112/29 | 10.167.180.113 – 10.167.180.118 | 10.167.180.119 |
| 16 | 10.167.180.120/29 | 10.167.180.121 – 10.167.180.126 | 10.167.180.127 |
| 17 | 10.167.180.128/29 | 10.167.180.129 – 10.167.180.134 | 10.167.180.135 |
| 18 | 10.167.180.136/29 | 10.167.180.137 – 10.167.180.142 | 10.167.180.143 |
| 19 | 10.167.180.144/29 | 10.167.180.145 – 10.167.180.150 | 10.167.180.151 |
| 20 | 10.167.180.152/29 | 10.167.180.153 – 10.167.180.158 | 10.167.180.159 |
| 21 | 10.167.180.160/29 | 10.167.180.161 – 10.167.180.166 | 10.167.180.167 |
| 22 | 10.167.180.168/29 | 10.167.180.169 – 10.167.180.174 | 10.167.180.175 |
| 23 | 10.167.180.176/29 | 10.167.180.177 – 10.167.180.182 | 10.167.180.183 |
| 24 | 10.167.180.184/29 | 10.167.180.185 – 10.167.180.190 | 10.167.180.191 |
| 25 | 10.167.180.192/29 | 10.167.180.193 – 10.167.180.198 | 10.167.180.199 |
| 26 | 10.167.180.200/29 | 10.167.180.201 – 10.167.180.206 | 10.167.180.207 |
| 27 | 10.167.180.208/29 | 10.167.180.209 – 10.167.180.214 | 10.167.180.215 |
| 28 | 10.167.180.216/29 | 10.167.180.217 – 10.167.180.222 | 10.167.180.223 |
| 29 | 10.167.180.224/29 | 10.167.180.225 – 10.167.180.230 | 10.167.180.231 |
| 30 | 10.167.180.232/29 | 10.167.180.233 – 10.167.180.238 | 10.167.180.239 |
| 31 | 10.167.180.240/29 | 10.167.180.241 – 10.167.180.246 | 10.167.180.247 |
| 32 | 10.167.180.248/29 | 10.167.180.249 – 10.167.180.254 | 10.167.180.255 |
| 33 | 10.167.181.0/29 | 10.167.181.1 – 10.167.181.6 | 10.167.181.7 |
| 34 | 10.167.181.8/29 | 10.167.181.9 – 10.167.181.14 | 10.167.181.15 |
| 35 | 10.167.181.16/29 | 10.167.181.17 – 10.167.181.22 | 10.167.181.23 |
| 36 | 10.167.181.24/29 | 10.167.181.25 – 10.167.181.30 | 10.167.181.31 |
| 37 | 10.167.181.32/29 | 10.167.181.33 – 10.167.181.38 | 10.167.181.39 |
| 38 | 10.167.181.40/29 | 10.167.181.41 – 10.167.181.46 | 10.167.181.47 |
| 39 | 10.167.181.48/29 | 10.167.181.49 – 10.167.181.54 | 10.167.181.55 |
| 40 | 10.167.181.56/29 | 10.167.181.57 – 10.167.181.62 | 10.167.181.63 |
| 41 | 10.167.181.64/29 | 10.167.181.65 – 10.167.181.70 | 10.167.181.71 |
| 42 | 10.167.181.72/29 | 10.167.181.73 – 10.167.181.78 | 10.167.181.79 |
| 43 | 10.167.181.80/29 | 10.167.181.81 – 10.167.181.86 | 10.167.181.87 |
| 44 | 10.167.181.88/29 | 10.167.181.89 – 10.167.181.94 | 10.167.181.95 |
| 45 | 10.167.181.96/29 | 10.167.181.97 – 10.167.181.102 | 10.167.181.103 |
| 46 | 10.167.181.104/29 | 10.167.181.105 – 10.167.181.110 | 10.167.181.111 |
| 47 | 10.167.181.112/29 | 10.167.181.113 – 10.167.181.118 | 10.167.181.119 |
| 48 | 10.167.181.120/29 | 10.167.181.121 – 10.167.181.126 | 10.167.181.127 |
| 49 | 10.167.181.128/29 | 10.167.181.129 – 10.167.181.134 | 10.167.181.135 |
| 50 | 10.167.181.136/29 | 10.167.181.137 – 10.167.181.142 | 10.167.181.143 |
| 51 | 10.167.181.144/29 | 10.167.181.145 – 10.167.181.150 | 10.167.181.151 |
| 52 | 10.167.181.152/29 | 10.167.181.153 – 10.167.181.158 | 10.167.181.159 |
| 53 | 10.167.181.160/29 | 10.167.181.161 – 10.167.181.166 | 10.167.181.167 |
| 54 | 10.167.181.168/29 | 10.167.181.169 – 10.167.181.174 | 10.167.181.175 |
| 55 | 10.167.181.176/29 | 10.167.181.177 – 10.167.181.182 | 10.167.181.183 |
| 56 | 10.167.181.184/29 | 10.167.181.185 – 10.167.181.190 | 10.167.181.191 |
| 57 | 10.167.181.192/29 | 10.167.181.193 – 10.167.181.198 | 10.167.181.199 |
| 58 | 10.167.181.200/29 | 10.167.181.201 – 10.167.181.206 | 10.167.181.207 |
| 59 | 10.167.181.208/29 | 10.167.181.209 – 10.167.181.214 | 10.167.181.215 |
| 60 | 10.167.181.216/29 | 10.167.181.217 – 10.167.181.222 | 10.167.181.223 |
| 61 | 10.167.181.224/29 | 10.167.181.225 – 10.167.181.230 | 10.167.181.231 |
| 62 | 10.167.181.232/29 | 10.167.181.233 – 10.167.181.238 | 10.167.181.239 |
| 63 | 10.167.181.240/29 | 10.167.181.241 – 10.167.181.246 | 10.167.181.247 |
| 64 | 10.167.181.248/29 | 10.167.181.249 – 10.167.181.254 | 10.167.181.255 |
| 65 | 10.167.182.0/29 | 10.167.182.1 – 10.167.182.6 | 10.167.182.7 |
| 66 | 10.167.182.8/29 | 10.167.182.9 – 10.167.182.14 | 10.167.182.15 |
| 67 | 10.167.182.16/29 | 10.167.182.17 – 10.167.182.22 | 10.167.182.23 |
| 68 | 10.167.182.24/29 | 10.167.182.25 – 10.167.182.30 | 10.167.182.31 |
| 69 | 10.167.182.32/29 | 10.167.182.33 – 10.167.182.38 | 10.167.182.39 |
| 70 | 10.167.182.40/29 | 10.167.182.41 – 10.167.182.46 | 10.167.182.47 |
| 71 | 10.167.182.48/29 | 10.167.182.49 – 10.167.182.54 | 10.167.182.55 |
| 72 | 10.167.182.56/29 | 10.167.182.57 – 10.167.182.62 | 10.167.182.63 |
| 73 | 10.167.182.64/29 | 10.167.182.65 – 10.167.182.70 | 10.167.182.71 |
| 74 | 10.167.182.72/29 | 10.167.182.73 – 10.167.182.78 | 10.167.182.79 |
| 75 | 10.167.182.80/29 | 10.167.182.81 – 10.167.182.86 | 10.167.182.87 |
| 76 | 10.167.182.88/29 | 10.167.182.89 – 10.167.182.94 | 10.167.182.95 |
| 77 | 10.167.182.96/29 | 10.167.182.97 – 10.167.182.102 | 10.167.182.103 |
| 78 | 10.167.182.104/29 | 10.167.182.105 – 10.167.182.110 | 10.167.182.111 |
| 79 | 10.167.182.112/29 | 10.167.182.113 – 10.167.182.118 | 10.167.182.119 |
| 80 | 10.167.182.120/29 | 10.167.182.121 – 10.167.182.126 | 10.167.182.127 |
| 81 | 10.167.182.128/29 | 10.167.182.129 – 10.167.182.134 | 10.167.182.135 |
| 82 | 10.167.182.136/29 | 10.167.182.137 – 10.167.182.142 | 10.167.182.143 |
| 83 | 10.167.182.144/29 | 10.167.182.145 – 10.167.182.150 | 10.167.182.151 |
| 84 | 10.167.182.152/29 | 10.167.182.153 – 10.167.182.158 | 10.167.182.159 |
| 85 | 10.167.182.160/29 | 10.167.182.161 – 10.167.182.166 | 10.167.182.167 |
| 86 | 10.167.182.168/29 | 10.167.182.169 – 10.167.182.174 | 10.167.182.175 |
| 87 | 10.167.182.176/29 | 10.167.182.177 – 10.167.182.182 | 10.167.182.183 |
| 88 | 10.167.182.184/29 | 10.167.182.185 – 10.167.182.190 | 10.167.182.191 |
| 89 | 10.167.182.192/29 | 10.167.182.193 – 10.167.182.198 | 10.167.182.199 |
| 90 | 10.167.182.200/29 | 10.167.182.201 – 10.167.182.206 | 10.167.182.207 |
| 91 | 10.167.182.208/29 | 10.167.182.209 – 10.167.182.214 | 10.167.182.215 |
| 92 | 10.167.182.216/29 | 10.167.182.217 – 10.167.182.222 | 10.167.182.223 |
| 93 | 10.167.182.224/29 | 10.167.182.225 – 10.167.182.230 | 10.167.182.231 |
| 94 | 10.167.182.232/29 | 10.167.182.233 – 10.167.182.238 | 10.167.182.239 |
| 95 | 10.167.182.240/29 | 10.167.182.241 – 10.167.182.246 | 10.167.182.247 |
| 96 | 10.167.182.248/29 | 10.167.182.249 – 10.167.182.254 | 10.167.182.255 |
| 97 | 10.167.183.0/29 | 10.167.183.1 – 10.167.183.6 | 10.167.183.7 |
| 98 | 10.167.183.8/29 | 10.167.183.9 – 10.167.183.14 | 10.167.183.15 |
| 99 | 10.167.183.16/29 | 10.167.183.17 – 10.167.183.22 | 10.167.183.23 |
| 100 | 10.167.183.24/29 | 10.167.183.25 – 10.167.183.30 | 10.167.183.31 |
| 101 | 10.167.183.32/29 | 10.167.183.33 – 10.167.183.38 | 10.167.183.39 |
| 102 | 10.167.183.40/29 | 10.167.183.41 – 10.167.183.46 | 10.167.183.47 |
| 103 | 10.167.183.48/29 | 10.167.183.49 – 10.167.183.54 | 10.167.183.55 |
| 104 | 10.167.183.56/29 | 10.167.183.57 – 10.167.183.62 | 10.167.183.63 |
| 105 | 10.167.183.64/29 | 10.167.183.65 – 10.167.183.70 | 10.167.183.71 |
| 106 | 10.167.183.72/29 | 10.167.183.73 – 10.167.183.78 | 10.167.183.79 |
| 107 | 10.167.183.80/29 | 10.167.183.81 – 10.167.183.86 | 10.167.183.87 |
| 108 | 10.167.183.88/29 | 10.167.183.89 – 10.167.183.94 | 10.167.183.95 |
| 109 | 10.167.183.96/29 | 10.167.183.97 – 10.167.183.102 | 10.167.183.103 |
| 110 | 10.167.183.104/29 | 10.167.183.105 – 10.167.183.110 | 10.167.183.111 |
| 111 | 10.167.183.112/29 | 10.167.183.113 – 10.167.183.118 | 10.167.183.119 |
| 112 | 10.167.183.120/29 | 10.167.183.121 – 10.167.183.126 | 10.167.183.127 |
| 113 | 10.167.183.128/29 | 10.167.183.129 – 10.167.183.134 | 10.167.183.135 |
| 114 | 10.167.183.136/29 | 10.167.183.137 – 10.167.183.142 | 10.167.183.143 |
| 115 | 10.167.183.144/29 | 10.167.183.145 – 10.167.183.150 | 10.167.183.151 |
| 116 | 10.167.183.152/29 | 10.167.183.153 – 10.167.183.158 | 10.167.183.159 |
| 117 | 10.167.183.160/29 | 10.167.183.161 – 10.167.183.166 | 10.167.183.167 |
| 118 | 10.167.183.168/29 | 10.167.183.169 – 10.167.183.174 | 10.167.183.175 |
| 119 | 10.167.183.176/29 | 10.167.183.177 – 10.167.183.182 | 10.167.183.183 |
| 120 | 10.167.183.184/29 | 10.167.183.185 – 10.167.183.190 | 10.167.183.191 |
| 121 | 10.167.183.192/29 | 10.167.183.193 – 10.167.183.198 | 10.167.183.199 |
| 122 | 10.167.183.200/29 | 10.167.183.201 – 10.167.183.206 | 10.167.183.207 |
| 123 | 10.167.183.208/29 | 10.167.183.209 – 10.167.183.214 | 10.167.183.215 |
| 124 | 10.167.183.216/29 | 10.167.183.217 – 10.167.183.222 | 10.167.183.223 |
| 125 | 10.167.183.224/29 | 10.167.183.225 – 10.167.183.230 | 10.167.183.231 |
| 126 | 10.167.183.232/29 | 10.167.183.233 – 10.167.183.238 | 10.167.183.239 |
| 127 | 10.167.183.240/29 | 10.167.183.241 – 10.167.183.246 | 10.167.183.247 |
| 128 | 10.167.183.248/29 | 10.167.183.249 – 10.167.183.254 | 10.167.183.255 |
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.