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)10.78.4.0/22
network10.78.4.0/22
broadcast10.78.7.255
first host10.78.4.1
last host10.78.7.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.78.4.0/22
address00001010.01001110.00000100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01001110.00000100.00000000
broadcast00001010.01001110.00000111.11111111
green = network part, grey = host part
hex0x0a4e0400
decimal172884992
reverse dns0.4.78.10.in-addr.arpa
ipv4-mapped::ffff:a4e:400
/22 split into /29 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.78.4.0/29 | 10.78.4.1 – 10.78.4.6 | 10.78.4.7 |
| 2 | 10.78.4.8/29 | 10.78.4.9 – 10.78.4.14 | 10.78.4.15 |
| 3 | 10.78.4.16/29 | 10.78.4.17 – 10.78.4.22 | 10.78.4.23 |
| 4 | 10.78.4.24/29 | 10.78.4.25 – 10.78.4.30 | 10.78.4.31 |
| 5 | 10.78.4.32/29 | 10.78.4.33 – 10.78.4.38 | 10.78.4.39 |
| 6 | 10.78.4.40/29 | 10.78.4.41 – 10.78.4.46 | 10.78.4.47 |
| 7 | 10.78.4.48/29 | 10.78.4.49 – 10.78.4.54 | 10.78.4.55 |
| 8 | 10.78.4.56/29 | 10.78.4.57 – 10.78.4.62 | 10.78.4.63 |
| 9 | 10.78.4.64/29 | 10.78.4.65 – 10.78.4.70 | 10.78.4.71 |
| 10 | 10.78.4.72/29 | 10.78.4.73 – 10.78.4.78 | 10.78.4.79 |
| 11 | 10.78.4.80/29 | 10.78.4.81 – 10.78.4.86 | 10.78.4.87 |
| 12 | 10.78.4.88/29 | 10.78.4.89 – 10.78.4.94 | 10.78.4.95 |
| 13 | 10.78.4.96/29 | 10.78.4.97 – 10.78.4.102 | 10.78.4.103 |
| 14 | 10.78.4.104/29 | 10.78.4.105 – 10.78.4.110 | 10.78.4.111 |
| 15 | 10.78.4.112/29 | 10.78.4.113 – 10.78.4.118 | 10.78.4.119 |
| 16 | 10.78.4.120/29 | 10.78.4.121 – 10.78.4.126 | 10.78.4.127 |
| 17 | 10.78.4.128/29 | 10.78.4.129 – 10.78.4.134 | 10.78.4.135 |
| 18 | 10.78.4.136/29 | 10.78.4.137 – 10.78.4.142 | 10.78.4.143 |
| 19 | 10.78.4.144/29 | 10.78.4.145 – 10.78.4.150 | 10.78.4.151 |
| 20 | 10.78.4.152/29 | 10.78.4.153 – 10.78.4.158 | 10.78.4.159 |
| 21 | 10.78.4.160/29 | 10.78.4.161 – 10.78.4.166 | 10.78.4.167 |
| 22 | 10.78.4.168/29 | 10.78.4.169 – 10.78.4.174 | 10.78.4.175 |
| 23 | 10.78.4.176/29 | 10.78.4.177 – 10.78.4.182 | 10.78.4.183 |
| 24 | 10.78.4.184/29 | 10.78.4.185 – 10.78.4.190 | 10.78.4.191 |
| 25 | 10.78.4.192/29 | 10.78.4.193 – 10.78.4.198 | 10.78.4.199 |
| 26 | 10.78.4.200/29 | 10.78.4.201 – 10.78.4.206 | 10.78.4.207 |
| 27 | 10.78.4.208/29 | 10.78.4.209 – 10.78.4.214 | 10.78.4.215 |
| 28 | 10.78.4.216/29 | 10.78.4.217 – 10.78.4.222 | 10.78.4.223 |
| 29 | 10.78.4.224/29 | 10.78.4.225 – 10.78.4.230 | 10.78.4.231 |
| 30 | 10.78.4.232/29 | 10.78.4.233 – 10.78.4.238 | 10.78.4.239 |
| 31 | 10.78.4.240/29 | 10.78.4.241 – 10.78.4.246 | 10.78.4.247 |
| 32 | 10.78.4.248/29 | 10.78.4.249 – 10.78.4.254 | 10.78.4.255 |
| 33 | 10.78.5.0/29 | 10.78.5.1 – 10.78.5.6 | 10.78.5.7 |
| 34 | 10.78.5.8/29 | 10.78.5.9 – 10.78.5.14 | 10.78.5.15 |
| 35 | 10.78.5.16/29 | 10.78.5.17 – 10.78.5.22 | 10.78.5.23 |
| 36 | 10.78.5.24/29 | 10.78.5.25 – 10.78.5.30 | 10.78.5.31 |
| 37 | 10.78.5.32/29 | 10.78.5.33 – 10.78.5.38 | 10.78.5.39 |
| 38 | 10.78.5.40/29 | 10.78.5.41 – 10.78.5.46 | 10.78.5.47 |
| 39 | 10.78.5.48/29 | 10.78.5.49 – 10.78.5.54 | 10.78.5.55 |
| 40 | 10.78.5.56/29 | 10.78.5.57 – 10.78.5.62 | 10.78.5.63 |
| 41 | 10.78.5.64/29 | 10.78.5.65 – 10.78.5.70 | 10.78.5.71 |
| 42 | 10.78.5.72/29 | 10.78.5.73 – 10.78.5.78 | 10.78.5.79 |
| 43 | 10.78.5.80/29 | 10.78.5.81 – 10.78.5.86 | 10.78.5.87 |
| 44 | 10.78.5.88/29 | 10.78.5.89 – 10.78.5.94 | 10.78.5.95 |
| 45 | 10.78.5.96/29 | 10.78.5.97 – 10.78.5.102 | 10.78.5.103 |
| 46 | 10.78.5.104/29 | 10.78.5.105 – 10.78.5.110 | 10.78.5.111 |
| 47 | 10.78.5.112/29 | 10.78.5.113 – 10.78.5.118 | 10.78.5.119 |
| 48 | 10.78.5.120/29 | 10.78.5.121 – 10.78.5.126 | 10.78.5.127 |
| 49 | 10.78.5.128/29 | 10.78.5.129 – 10.78.5.134 | 10.78.5.135 |
| 50 | 10.78.5.136/29 | 10.78.5.137 – 10.78.5.142 | 10.78.5.143 |
| 51 | 10.78.5.144/29 | 10.78.5.145 – 10.78.5.150 | 10.78.5.151 |
| 52 | 10.78.5.152/29 | 10.78.5.153 – 10.78.5.158 | 10.78.5.159 |
| 53 | 10.78.5.160/29 | 10.78.5.161 – 10.78.5.166 | 10.78.5.167 |
| 54 | 10.78.5.168/29 | 10.78.5.169 – 10.78.5.174 | 10.78.5.175 |
| 55 | 10.78.5.176/29 | 10.78.5.177 – 10.78.5.182 | 10.78.5.183 |
| 56 | 10.78.5.184/29 | 10.78.5.185 – 10.78.5.190 | 10.78.5.191 |
| 57 | 10.78.5.192/29 | 10.78.5.193 – 10.78.5.198 | 10.78.5.199 |
| 58 | 10.78.5.200/29 | 10.78.5.201 – 10.78.5.206 | 10.78.5.207 |
| 59 | 10.78.5.208/29 | 10.78.5.209 – 10.78.5.214 | 10.78.5.215 |
| 60 | 10.78.5.216/29 | 10.78.5.217 – 10.78.5.222 | 10.78.5.223 |
| 61 | 10.78.5.224/29 | 10.78.5.225 – 10.78.5.230 | 10.78.5.231 |
| 62 | 10.78.5.232/29 | 10.78.5.233 – 10.78.5.238 | 10.78.5.239 |
| 63 | 10.78.5.240/29 | 10.78.5.241 – 10.78.5.246 | 10.78.5.247 |
| 64 | 10.78.5.248/29 | 10.78.5.249 – 10.78.5.254 | 10.78.5.255 |
| 65 | 10.78.6.0/29 | 10.78.6.1 – 10.78.6.6 | 10.78.6.7 |
| 66 | 10.78.6.8/29 | 10.78.6.9 – 10.78.6.14 | 10.78.6.15 |
| 67 | 10.78.6.16/29 | 10.78.6.17 – 10.78.6.22 | 10.78.6.23 |
| 68 | 10.78.6.24/29 | 10.78.6.25 – 10.78.6.30 | 10.78.6.31 |
| 69 | 10.78.6.32/29 | 10.78.6.33 – 10.78.6.38 | 10.78.6.39 |
| 70 | 10.78.6.40/29 | 10.78.6.41 – 10.78.6.46 | 10.78.6.47 |
| 71 | 10.78.6.48/29 | 10.78.6.49 – 10.78.6.54 | 10.78.6.55 |
| 72 | 10.78.6.56/29 | 10.78.6.57 – 10.78.6.62 | 10.78.6.63 |
| 73 | 10.78.6.64/29 | 10.78.6.65 – 10.78.6.70 | 10.78.6.71 |
| 74 | 10.78.6.72/29 | 10.78.6.73 – 10.78.6.78 | 10.78.6.79 |
| 75 | 10.78.6.80/29 | 10.78.6.81 – 10.78.6.86 | 10.78.6.87 |
| 76 | 10.78.6.88/29 | 10.78.6.89 – 10.78.6.94 | 10.78.6.95 |
| 77 | 10.78.6.96/29 | 10.78.6.97 – 10.78.6.102 | 10.78.6.103 |
| 78 | 10.78.6.104/29 | 10.78.6.105 – 10.78.6.110 | 10.78.6.111 |
| 79 | 10.78.6.112/29 | 10.78.6.113 – 10.78.6.118 | 10.78.6.119 |
| 80 | 10.78.6.120/29 | 10.78.6.121 – 10.78.6.126 | 10.78.6.127 |
| 81 | 10.78.6.128/29 | 10.78.6.129 – 10.78.6.134 | 10.78.6.135 |
| 82 | 10.78.6.136/29 | 10.78.6.137 – 10.78.6.142 | 10.78.6.143 |
| 83 | 10.78.6.144/29 | 10.78.6.145 – 10.78.6.150 | 10.78.6.151 |
| 84 | 10.78.6.152/29 | 10.78.6.153 – 10.78.6.158 | 10.78.6.159 |
| 85 | 10.78.6.160/29 | 10.78.6.161 – 10.78.6.166 | 10.78.6.167 |
| 86 | 10.78.6.168/29 | 10.78.6.169 – 10.78.6.174 | 10.78.6.175 |
| 87 | 10.78.6.176/29 | 10.78.6.177 – 10.78.6.182 | 10.78.6.183 |
| 88 | 10.78.6.184/29 | 10.78.6.185 – 10.78.6.190 | 10.78.6.191 |
| 89 | 10.78.6.192/29 | 10.78.6.193 – 10.78.6.198 | 10.78.6.199 |
| 90 | 10.78.6.200/29 | 10.78.6.201 – 10.78.6.206 | 10.78.6.207 |
| 91 | 10.78.6.208/29 | 10.78.6.209 – 10.78.6.214 | 10.78.6.215 |
| 92 | 10.78.6.216/29 | 10.78.6.217 – 10.78.6.222 | 10.78.6.223 |
| 93 | 10.78.6.224/29 | 10.78.6.225 – 10.78.6.230 | 10.78.6.231 |
| 94 | 10.78.6.232/29 | 10.78.6.233 – 10.78.6.238 | 10.78.6.239 |
| 95 | 10.78.6.240/29 | 10.78.6.241 – 10.78.6.246 | 10.78.6.247 |
| 96 | 10.78.6.248/29 | 10.78.6.249 – 10.78.6.254 | 10.78.6.255 |
| 97 | 10.78.7.0/29 | 10.78.7.1 – 10.78.7.6 | 10.78.7.7 |
| 98 | 10.78.7.8/29 | 10.78.7.9 – 10.78.7.14 | 10.78.7.15 |
| 99 | 10.78.7.16/29 | 10.78.7.17 – 10.78.7.22 | 10.78.7.23 |
| 100 | 10.78.7.24/29 | 10.78.7.25 – 10.78.7.30 | 10.78.7.31 |
| 101 | 10.78.7.32/29 | 10.78.7.33 – 10.78.7.38 | 10.78.7.39 |
| 102 | 10.78.7.40/29 | 10.78.7.41 – 10.78.7.46 | 10.78.7.47 |
| 103 | 10.78.7.48/29 | 10.78.7.49 – 10.78.7.54 | 10.78.7.55 |
| 104 | 10.78.7.56/29 | 10.78.7.57 – 10.78.7.62 | 10.78.7.63 |
| 105 | 10.78.7.64/29 | 10.78.7.65 – 10.78.7.70 | 10.78.7.71 |
| 106 | 10.78.7.72/29 | 10.78.7.73 – 10.78.7.78 | 10.78.7.79 |
| 107 | 10.78.7.80/29 | 10.78.7.81 – 10.78.7.86 | 10.78.7.87 |
| 108 | 10.78.7.88/29 | 10.78.7.89 – 10.78.7.94 | 10.78.7.95 |
| 109 | 10.78.7.96/29 | 10.78.7.97 – 10.78.7.102 | 10.78.7.103 |
| 110 | 10.78.7.104/29 | 10.78.7.105 – 10.78.7.110 | 10.78.7.111 |
| 111 | 10.78.7.112/29 | 10.78.7.113 – 10.78.7.118 | 10.78.7.119 |
| 112 | 10.78.7.120/29 | 10.78.7.121 – 10.78.7.126 | 10.78.7.127 |
| 113 | 10.78.7.128/29 | 10.78.7.129 – 10.78.7.134 | 10.78.7.135 |
| 114 | 10.78.7.136/29 | 10.78.7.137 – 10.78.7.142 | 10.78.7.143 |
| 115 | 10.78.7.144/29 | 10.78.7.145 – 10.78.7.150 | 10.78.7.151 |
| 116 | 10.78.7.152/29 | 10.78.7.153 – 10.78.7.158 | 10.78.7.159 |
| 117 | 10.78.7.160/29 | 10.78.7.161 – 10.78.7.166 | 10.78.7.167 |
| 118 | 10.78.7.168/29 | 10.78.7.169 – 10.78.7.174 | 10.78.7.175 |
| 119 | 10.78.7.176/29 | 10.78.7.177 – 10.78.7.182 | 10.78.7.183 |
| 120 | 10.78.7.184/29 | 10.78.7.185 – 10.78.7.190 | 10.78.7.191 |
| 121 | 10.78.7.192/29 | 10.78.7.193 – 10.78.7.198 | 10.78.7.199 |
| 122 | 10.78.7.200/29 | 10.78.7.201 – 10.78.7.206 | 10.78.7.207 |
| 123 | 10.78.7.208/29 | 10.78.7.209 – 10.78.7.214 | 10.78.7.215 |
| 124 | 10.78.7.216/29 | 10.78.7.217 – 10.78.7.222 | 10.78.7.223 |
| 125 | 10.78.7.224/29 | 10.78.7.225 – 10.78.7.230 | 10.78.7.231 |
| 126 | 10.78.7.232/29 | 10.78.7.233 – 10.78.7.238 | 10.78.7.239 |
| 127 | 10.78.7.240/29 | 10.78.7.241 – 10.78.7.246 | 10.78.7.247 |
| 128 | 10.78.7.248/29 | 10.78.7.249 – 10.78.7.254 | 10.78.7.255 |
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.