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)10.28.76.0/22
network10.28.76.0/22
broadcast10.28.79.255
first host10.28.76.1
last host10.28.79.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.28.76.0/22
address00001010.00011100.01001100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.00011100.01001100.00000000
broadcast00001010.00011100.01001111.11111111
green = network part, grey = host part
hex0x0a1c4c00
decimal169626624
reverse dns0.76.28.10.in-addr.arpa
ipv4-mapped::ffff:a1c:4c00
/22 split into /29 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.28.76.0/29 | 10.28.76.1 – 10.28.76.6 | 10.28.76.7 |
| 2 | 10.28.76.8/29 | 10.28.76.9 – 10.28.76.14 | 10.28.76.15 |
| 3 | 10.28.76.16/29 | 10.28.76.17 – 10.28.76.22 | 10.28.76.23 |
| 4 | 10.28.76.24/29 | 10.28.76.25 – 10.28.76.30 | 10.28.76.31 |
| 5 | 10.28.76.32/29 | 10.28.76.33 – 10.28.76.38 | 10.28.76.39 |
| 6 | 10.28.76.40/29 | 10.28.76.41 – 10.28.76.46 | 10.28.76.47 |
| 7 | 10.28.76.48/29 | 10.28.76.49 – 10.28.76.54 | 10.28.76.55 |
| 8 | 10.28.76.56/29 | 10.28.76.57 – 10.28.76.62 | 10.28.76.63 |
| 9 | 10.28.76.64/29 | 10.28.76.65 – 10.28.76.70 | 10.28.76.71 |
| 10 | 10.28.76.72/29 | 10.28.76.73 – 10.28.76.78 | 10.28.76.79 |
| 11 | 10.28.76.80/29 | 10.28.76.81 – 10.28.76.86 | 10.28.76.87 |
| 12 | 10.28.76.88/29 | 10.28.76.89 – 10.28.76.94 | 10.28.76.95 |
| 13 | 10.28.76.96/29 | 10.28.76.97 – 10.28.76.102 | 10.28.76.103 |
| 14 | 10.28.76.104/29 | 10.28.76.105 – 10.28.76.110 | 10.28.76.111 |
| 15 | 10.28.76.112/29 | 10.28.76.113 – 10.28.76.118 | 10.28.76.119 |
| 16 | 10.28.76.120/29 | 10.28.76.121 – 10.28.76.126 | 10.28.76.127 |
| 17 | 10.28.76.128/29 | 10.28.76.129 – 10.28.76.134 | 10.28.76.135 |
| 18 | 10.28.76.136/29 | 10.28.76.137 – 10.28.76.142 | 10.28.76.143 |
| 19 | 10.28.76.144/29 | 10.28.76.145 – 10.28.76.150 | 10.28.76.151 |
| 20 | 10.28.76.152/29 | 10.28.76.153 – 10.28.76.158 | 10.28.76.159 |
| 21 | 10.28.76.160/29 | 10.28.76.161 – 10.28.76.166 | 10.28.76.167 |
| 22 | 10.28.76.168/29 | 10.28.76.169 – 10.28.76.174 | 10.28.76.175 |
| 23 | 10.28.76.176/29 | 10.28.76.177 – 10.28.76.182 | 10.28.76.183 |
| 24 | 10.28.76.184/29 | 10.28.76.185 – 10.28.76.190 | 10.28.76.191 |
| 25 | 10.28.76.192/29 | 10.28.76.193 – 10.28.76.198 | 10.28.76.199 |
| 26 | 10.28.76.200/29 | 10.28.76.201 – 10.28.76.206 | 10.28.76.207 |
| 27 | 10.28.76.208/29 | 10.28.76.209 – 10.28.76.214 | 10.28.76.215 |
| 28 | 10.28.76.216/29 | 10.28.76.217 – 10.28.76.222 | 10.28.76.223 |
| 29 | 10.28.76.224/29 | 10.28.76.225 – 10.28.76.230 | 10.28.76.231 |
| 30 | 10.28.76.232/29 | 10.28.76.233 – 10.28.76.238 | 10.28.76.239 |
| 31 | 10.28.76.240/29 | 10.28.76.241 – 10.28.76.246 | 10.28.76.247 |
| 32 | 10.28.76.248/29 | 10.28.76.249 – 10.28.76.254 | 10.28.76.255 |
| 33 | 10.28.77.0/29 | 10.28.77.1 – 10.28.77.6 | 10.28.77.7 |
| 34 | 10.28.77.8/29 | 10.28.77.9 – 10.28.77.14 | 10.28.77.15 |
| 35 | 10.28.77.16/29 | 10.28.77.17 – 10.28.77.22 | 10.28.77.23 |
| 36 | 10.28.77.24/29 | 10.28.77.25 – 10.28.77.30 | 10.28.77.31 |
| 37 | 10.28.77.32/29 | 10.28.77.33 – 10.28.77.38 | 10.28.77.39 |
| 38 | 10.28.77.40/29 | 10.28.77.41 – 10.28.77.46 | 10.28.77.47 |
| 39 | 10.28.77.48/29 | 10.28.77.49 – 10.28.77.54 | 10.28.77.55 |
| 40 | 10.28.77.56/29 | 10.28.77.57 – 10.28.77.62 | 10.28.77.63 |
| 41 | 10.28.77.64/29 | 10.28.77.65 – 10.28.77.70 | 10.28.77.71 |
| 42 | 10.28.77.72/29 | 10.28.77.73 – 10.28.77.78 | 10.28.77.79 |
| 43 | 10.28.77.80/29 | 10.28.77.81 – 10.28.77.86 | 10.28.77.87 |
| 44 | 10.28.77.88/29 | 10.28.77.89 – 10.28.77.94 | 10.28.77.95 |
| 45 | 10.28.77.96/29 | 10.28.77.97 – 10.28.77.102 | 10.28.77.103 |
| 46 | 10.28.77.104/29 | 10.28.77.105 – 10.28.77.110 | 10.28.77.111 |
| 47 | 10.28.77.112/29 | 10.28.77.113 – 10.28.77.118 | 10.28.77.119 |
| 48 | 10.28.77.120/29 | 10.28.77.121 – 10.28.77.126 | 10.28.77.127 |
| 49 | 10.28.77.128/29 | 10.28.77.129 – 10.28.77.134 | 10.28.77.135 |
| 50 | 10.28.77.136/29 | 10.28.77.137 – 10.28.77.142 | 10.28.77.143 |
| 51 | 10.28.77.144/29 | 10.28.77.145 – 10.28.77.150 | 10.28.77.151 |
| 52 | 10.28.77.152/29 | 10.28.77.153 – 10.28.77.158 | 10.28.77.159 |
| 53 | 10.28.77.160/29 | 10.28.77.161 – 10.28.77.166 | 10.28.77.167 |
| 54 | 10.28.77.168/29 | 10.28.77.169 – 10.28.77.174 | 10.28.77.175 |
| 55 | 10.28.77.176/29 | 10.28.77.177 – 10.28.77.182 | 10.28.77.183 |
| 56 | 10.28.77.184/29 | 10.28.77.185 – 10.28.77.190 | 10.28.77.191 |
| 57 | 10.28.77.192/29 | 10.28.77.193 – 10.28.77.198 | 10.28.77.199 |
| 58 | 10.28.77.200/29 | 10.28.77.201 – 10.28.77.206 | 10.28.77.207 |
| 59 | 10.28.77.208/29 | 10.28.77.209 – 10.28.77.214 | 10.28.77.215 |
| 60 | 10.28.77.216/29 | 10.28.77.217 – 10.28.77.222 | 10.28.77.223 |
| 61 | 10.28.77.224/29 | 10.28.77.225 – 10.28.77.230 | 10.28.77.231 |
| 62 | 10.28.77.232/29 | 10.28.77.233 – 10.28.77.238 | 10.28.77.239 |
| 63 | 10.28.77.240/29 | 10.28.77.241 – 10.28.77.246 | 10.28.77.247 |
| 64 | 10.28.77.248/29 | 10.28.77.249 – 10.28.77.254 | 10.28.77.255 |
| 65 | 10.28.78.0/29 | 10.28.78.1 – 10.28.78.6 | 10.28.78.7 |
| 66 | 10.28.78.8/29 | 10.28.78.9 – 10.28.78.14 | 10.28.78.15 |
| 67 | 10.28.78.16/29 | 10.28.78.17 – 10.28.78.22 | 10.28.78.23 |
| 68 | 10.28.78.24/29 | 10.28.78.25 – 10.28.78.30 | 10.28.78.31 |
| 69 | 10.28.78.32/29 | 10.28.78.33 – 10.28.78.38 | 10.28.78.39 |
| 70 | 10.28.78.40/29 | 10.28.78.41 – 10.28.78.46 | 10.28.78.47 |
| 71 | 10.28.78.48/29 | 10.28.78.49 – 10.28.78.54 | 10.28.78.55 |
| 72 | 10.28.78.56/29 | 10.28.78.57 – 10.28.78.62 | 10.28.78.63 |
| 73 | 10.28.78.64/29 | 10.28.78.65 – 10.28.78.70 | 10.28.78.71 |
| 74 | 10.28.78.72/29 | 10.28.78.73 – 10.28.78.78 | 10.28.78.79 |
| 75 | 10.28.78.80/29 | 10.28.78.81 – 10.28.78.86 | 10.28.78.87 |
| 76 | 10.28.78.88/29 | 10.28.78.89 – 10.28.78.94 | 10.28.78.95 |
| 77 | 10.28.78.96/29 | 10.28.78.97 – 10.28.78.102 | 10.28.78.103 |
| 78 | 10.28.78.104/29 | 10.28.78.105 – 10.28.78.110 | 10.28.78.111 |
| 79 | 10.28.78.112/29 | 10.28.78.113 – 10.28.78.118 | 10.28.78.119 |
| 80 | 10.28.78.120/29 | 10.28.78.121 – 10.28.78.126 | 10.28.78.127 |
| 81 | 10.28.78.128/29 | 10.28.78.129 – 10.28.78.134 | 10.28.78.135 |
| 82 | 10.28.78.136/29 | 10.28.78.137 – 10.28.78.142 | 10.28.78.143 |
| 83 | 10.28.78.144/29 | 10.28.78.145 – 10.28.78.150 | 10.28.78.151 |
| 84 | 10.28.78.152/29 | 10.28.78.153 – 10.28.78.158 | 10.28.78.159 |
| 85 | 10.28.78.160/29 | 10.28.78.161 – 10.28.78.166 | 10.28.78.167 |
| 86 | 10.28.78.168/29 | 10.28.78.169 – 10.28.78.174 | 10.28.78.175 |
| 87 | 10.28.78.176/29 | 10.28.78.177 – 10.28.78.182 | 10.28.78.183 |
| 88 | 10.28.78.184/29 | 10.28.78.185 – 10.28.78.190 | 10.28.78.191 |
| 89 | 10.28.78.192/29 | 10.28.78.193 – 10.28.78.198 | 10.28.78.199 |
| 90 | 10.28.78.200/29 | 10.28.78.201 – 10.28.78.206 | 10.28.78.207 |
| 91 | 10.28.78.208/29 | 10.28.78.209 – 10.28.78.214 | 10.28.78.215 |
| 92 | 10.28.78.216/29 | 10.28.78.217 – 10.28.78.222 | 10.28.78.223 |
| 93 | 10.28.78.224/29 | 10.28.78.225 – 10.28.78.230 | 10.28.78.231 |
| 94 | 10.28.78.232/29 | 10.28.78.233 – 10.28.78.238 | 10.28.78.239 |
| 95 | 10.28.78.240/29 | 10.28.78.241 – 10.28.78.246 | 10.28.78.247 |
| 96 | 10.28.78.248/29 | 10.28.78.249 – 10.28.78.254 | 10.28.78.255 |
| 97 | 10.28.79.0/29 | 10.28.79.1 – 10.28.79.6 | 10.28.79.7 |
| 98 | 10.28.79.8/29 | 10.28.79.9 – 10.28.79.14 | 10.28.79.15 |
| 99 | 10.28.79.16/29 | 10.28.79.17 – 10.28.79.22 | 10.28.79.23 |
| 100 | 10.28.79.24/29 | 10.28.79.25 – 10.28.79.30 | 10.28.79.31 |
| 101 | 10.28.79.32/29 | 10.28.79.33 – 10.28.79.38 | 10.28.79.39 |
| 102 | 10.28.79.40/29 | 10.28.79.41 – 10.28.79.46 | 10.28.79.47 |
| 103 | 10.28.79.48/29 | 10.28.79.49 – 10.28.79.54 | 10.28.79.55 |
| 104 | 10.28.79.56/29 | 10.28.79.57 – 10.28.79.62 | 10.28.79.63 |
| 105 | 10.28.79.64/29 | 10.28.79.65 – 10.28.79.70 | 10.28.79.71 |
| 106 | 10.28.79.72/29 | 10.28.79.73 – 10.28.79.78 | 10.28.79.79 |
| 107 | 10.28.79.80/29 | 10.28.79.81 – 10.28.79.86 | 10.28.79.87 |
| 108 | 10.28.79.88/29 | 10.28.79.89 – 10.28.79.94 | 10.28.79.95 |
| 109 | 10.28.79.96/29 | 10.28.79.97 – 10.28.79.102 | 10.28.79.103 |
| 110 | 10.28.79.104/29 | 10.28.79.105 – 10.28.79.110 | 10.28.79.111 |
| 111 | 10.28.79.112/29 | 10.28.79.113 – 10.28.79.118 | 10.28.79.119 |
| 112 | 10.28.79.120/29 | 10.28.79.121 – 10.28.79.126 | 10.28.79.127 |
| 113 | 10.28.79.128/29 | 10.28.79.129 – 10.28.79.134 | 10.28.79.135 |
| 114 | 10.28.79.136/29 | 10.28.79.137 – 10.28.79.142 | 10.28.79.143 |
| 115 | 10.28.79.144/29 | 10.28.79.145 – 10.28.79.150 | 10.28.79.151 |
| 116 | 10.28.79.152/29 | 10.28.79.153 – 10.28.79.158 | 10.28.79.159 |
| 117 | 10.28.79.160/29 | 10.28.79.161 – 10.28.79.166 | 10.28.79.167 |
| 118 | 10.28.79.168/29 | 10.28.79.169 – 10.28.79.174 | 10.28.79.175 |
| 119 | 10.28.79.176/29 | 10.28.79.177 – 10.28.79.182 | 10.28.79.183 |
| 120 | 10.28.79.184/29 | 10.28.79.185 – 10.28.79.190 | 10.28.79.191 |
| 121 | 10.28.79.192/29 | 10.28.79.193 – 10.28.79.198 | 10.28.79.199 |
| 122 | 10.28.79.200/29 | 10.28.79.201 – 10.28.79.206 | 10.28.79.207 |
| 123 | 10.28.79.208/29 | 10.28.79.209 – 10.28.79.214 | 10.28.79.215 |
| 124 | 10.28.79.216/29 | 10.28.79.217 – 10.28.79.222 | 10.28.79.223 |
| 125 | 10.28.79.224/29 | 10.28.79.225 – 10.28.79.230 | 10.28.79.231 |
| 126 | 10.28.79.232/29 | 10.28.79.233 – 10.28.79.238 | 10.28.79.239 |
| 127 | 10.28.79.240/29 | 10.28.79.241 – 10.28.79.246 | 10.28.79.247 |
| 128 | 10.28.79.248/29 | 10.28.79.249 – 10.28.79.254 | 10.28.79.255 |
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.