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)10.80.64.0/22
network10.80.64.0/22
broadcast10.80.67.255
first host10.80.64.1
last host10.80.67.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.80.64.0/22
address00001010.01010000.01000000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01010000.01000000.00000000
broadcast00001010.01010000.01000011.11111111
green = network part, grey = host part
hex0x0a504000
decimal173031424
reverse dns0.64.80.10.in-addr.arpa
ipv4-mapped::ffff:a50:4000
/22 split into /29 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.80.64.0/29 | 10.80.64.1 – 10.80.64.6 | 10.80.64.7 |
| 2 | 10.80.64.8/29 | 10.80.64.9 – 10.80.64.14 | 10.80.64.15 |
| 3 | 10.80.64.16/29 | 10.80.64.17 – 10.80.64.22 | 10.80.64.23 |
| 4 | 10.80.64.24/29 | 10.80.64.25 – 10.80.64.30 | 10.80.64.31 |
| 5 | 10.80.64.32/29 | 10.80.64.33 – 10.80.64.38 | 10.80.64.39 |
| 6 | 10.80.64.40/29 | 10.80.64.41 – 10.80.64.46 | 10.80.64.47 |
| 7 | 10.80.64.48/29 | 10.80.64.49 – 10.80.64.54 | 10.80.64.55 |
| 8 | 10.80.64.56/29 | 10.80.64.57 – 10.80.64.62 | 10.80.64.63 |
| 9 | 10.80.64.64/29 | 10.80.64.65 – 10.80.64.70 | 10.80.64.71 |
| 10 | 10.80.64.72/29 | 10.80.64.73 – 10.80.64.78 | 10.80.64.79 |
| 11 | 10.80.64.80/29 | 10.80.64.81 – 10.80.64.86 | 10.80.64.87 |
| 12 | 10.80.64.88/29 | 10.80.64.89 – 10.80.64.94 | 10.80.64.95 |
| 13 | 10.80.64.96/29 | 10.80.64.97 – 10.80.64.102 | 10.80.64.103 |
| 14 | 10.80.64.104/29 | 10.80.64.105 – 10.80.64.110 | 10.80.64.111 |
| 15 | 10.80.64.112/29 | 10.80.64.113 – 10.80.64.118 | 10.80.64.119 |
| 16 | 10.80.64.120/29 | 10.80.64.121 – 10.80.64.126 | 10.80.64.127 |
| 17 | 10.80.64.128/29 | 10.80.64.129 – 10.80.64.134 | 10.80.64.135 |
| 18 | 10.80.64.136/29 | 10.80.64.137 – 10.80.64.142 | 10.80.64.143 |
| 19 | 10.80.64.144/29 | 10.80.64.145 – 10.80.64.150 | 10.80.64.151 |
| 20 | 10.80.64.152/29 | 10.80.64.153 – 10.80.64.158 | 10.80.64.159 |
| 21 | 10.80.64.160/29 | 10.80.64.161 – 10.80.64.166 | 10.80.64.167 |
| 22 | 10.80.64.168/29 | 10.80.64.169 – 10.80.64.174 | 10.80.64.175 |
| 23 | 10.80.64.176/29 | 10.80.64.177 – 10.80.64.182 | 10.80.64.183 |
| 24 | 10.80.64.184/29 | 10.80.64.185 – 10.80.64.190 | 10.80.64.191 |
| 25 | 10.80.64.192/29 | 10.80.64.193 – 10.80.64.198 | 10.80.64.199 |
| 26 | 10.80.64.200/29 | 10.80.64.201 – 10.80.64.206 | 10.80.64.207 |
| 27 | 10.80.64.208/29 | 10.80.64.209 – 10.80.64.214 | 10.80.64.215 |
| 28 | 10.80.64.216/29 | 10.80.64.217 – 10.80.64.222 | 10.80.64.223 |
| 29 | 10.80.64.224/29 | 10.80.64.225 – 10.80.64.230 | 10.80.64.231 |
| 30 | 10.80.64.232/29 | 10.80.64.233 – 10.80.64.238 | 10.80.64.239 |
| 31 | 10.80.64.240/29 | 10.80.64.241 – 10.80.64.246 | 10.80.64.247 |
| 32 | 10.80.64.248/29 | 10.80.64.249 – 10.80.64.254 | 10.80.64.255 |
| 33 | 10.80.65.0/29 | 10.80.65.1 – 10.80.65.6 | 10.80.65.7 |
| 34 | 10.80.65.8/29 | 10.80.65.9 – 10.80.65.14 | 10.80.65.15 |
| 35 | 10.80.65.16/29 | 10.80.65.17 – 10.80.65.22 | 10.80.65.23 |
| 36 | 10.80.65.24/29 | 10.80.65.25 – 10.80.65.30 | 10.80.65.31 |
| 37 | 10.80.65.32/29 | 10.80.65.33 – 10.80.65.38 | 10.80.65.39 |
| 38 | 10.80.65.40/29 | 10.80.65.41 – 10.80.65.46 | 10.80.65.47 |
| 39 | 10.80.65.48/29 | 10.80.65.49 – 10.80.65.54 | 10.80.65.55 |
| 40 | 10.80.65.56/29 | 10.80.65.57 – 10.80.65.62 | 10.80.65.63 |
| 41 | 10.80.65.64/29 | 10.80.65.65 – 10.80.65.70 | 10.80.65.71 |
| 42 | 10.80.65.72/29 | 10.80.65.73 – 10.80.65.78 | 10.80.65.79 |
| 43 | 10.80.65.80/29 | 10.80.65.81 – 10.80.65.86 | 10.80.65.87 |
| 44 | 10.80.65.88/29 | 10.80.65.89 – 10.80.65.94 | 10.80.65.95 |
| 45 | 10.80.65.96/29 | 10.80.65.97 – 10.80.65.102 | 10.80.65.103 |
| 46 | 10.80.65.104/29 | 10.80.65.105 – 10.80.65.110 | 10.80.65.111 |
| 47 | 10.80.65.112/29 | 10.80.65.113 – 10.80.65.118 | 10.80.65.119 |
| 48 | 10.80.65.120/29 | 10.80.65.121 – 10.80.65.126 | 10.80.65.127 |
| 49 | 10.80.65.128/29 | 10.80.65.129 – 10.80.65.134 | 10.80.65.135 |
| 50 | 10.80.65.136/29 | 10.80.65.137 – 10.80.65.142 | 10.80.65.143 |
| 51 | 10.80.65.144/29 | 10.80.65.145 – 10.80.65.150 | 10.80.65.151 |
| 52 | 10.80.65.152/29 | 10.80.65.153 – 10.80.65.158 | 10.80.65.159 |
| 53 | 10.80.65.160/29 | 10.80.65.161 – 10.80.65.166 | 10.80.65.167 |
| 54 | 10.80.65.168/29 | 10.80.65.169 – 10.80.65.174 | 10.80.65.175 |
| 55 | 10.80.65.176/29 | 10.80.65.177 – 10.80.65.182 | 10.80.65.183 |
| 56 | 10.80.65.184/29 | 10.80.65.185 – 10.80.65.190 | 10.80.65.191 |
| 57 | 10.80.65.192/29 | 10.80.65.193 – 10.80.65.198 | 10.80.65.199 |
| 58 | 10.80.65.200/29 | 10.80.65.201 – 10.80.65.206 | 10.80.65.207 |
| 59 | 10.80.65.208/29 | 10.80.65.209 – 10.80.65.214 | 10.80.65.215 |
| 60 | 10.80.65.216/29 | 10.80.65.217 – 10.80.65.222 | 10.80.65.223 |
| 61 | 10.80.65.224/29 | 10.80.65.225 – 10.80.65.230 | 10.80.65.231 |
| 62 | 10.80.65.232/29 | 10.80.65.233 – 10.80.65.238 | 10.80.65.239 |
| 63 | 10.80.65.240/29 | 10.80.65.241 – 10.80.65.246 | 10.80.65.247 |
| 64 | 10.80.65.248/29 | 10.80.65.249 – 10.80.65.254 | 10.80.65.255 |
| 65 | 10.80.66.0/29 | 10.80.66.1 – 10.80.66.6 | 10.80.66.7 |
| 66 | 10.80.66.8/29 | 10.80.66.9 – 10.80.66.14 | 10.80.66.15 |
| 67 | 10.80.66.16/29 | 10.80.66.17 – 10.80.66.22 | 10.80.66.23 |
| 68 | 10.80.66.24/29 | 10.80.66.25 – 10.80.66.30 | 10.80.66.31 |
| 69 | 10.80.66.32/29 | 10.80.66.33 – 10.80.66.38 | 10.80.66.39 |
| 70 | 10.80.66.40/29 | 10.80.66.41 – 10.80.66.46 | 10.80.66.47 |
| 71 | 10.80.66.48/29 | 10.80.66.49 – 10.80.66.54 | 10.80.66.55 |
| 72 | 10.80.66.56/29 | 10.80.66.57 – 10.80.66.62 | 10.80.66.63 |
| 73 | 10.80.66.64/29 | 10.80.66.65 – 10.80.66.70 | 10.80.66.71 |
| 74 | 10.80.66.72/29 | 10.80.66.73 – 10.80.66.78 | 10.80.66.79 |
| 75 | 10.80.66.80/29 | 10.80.66.81 – 10.80.66.86 | 10.80.66.87 |
| 76 | 10.80.66.88/29 | 10.80.66.89 – 10.80.66.94 | 10.80.66.95 |
| 77 | 10.80.66.96/29 | 10.80.66.97 – 10.80.66.102 | 10.80.66.103 |
| 78 | 10.80.66.104/29 | 10.80.66.105 – 10.80.66.110 | 10.80.66.111 |
| 79 | 10.80.66.112/29 | 10.80.66.113 – 10.80.66.118 | 10.80.66.119 |
| 80 | 10.80.66.120/29 | 10.80.66.121 – 10.80.66.126 | 10.80.66.127 |
| 81 | 10.80.66.128/29 | 10.80.66.129 – 10.80.66.134 | 10.80.66.135 |
| 82 | 10.80.66.136/29 | 10.80.66.137 – 10.80.66.142 | 10.80.66.143 |
| 83 | 10.80.66.144/29 | 10.80.66.145 – 10.80.66.150 | 10.80.66.151 |
| 84 | 10.80.66.152/29 | 10.80.66.153 – 10.80.66.158 | 10.80.66.159 |
| 85 | 10.80.66.160/29 | 10.80.66.161 – 10.80.66.166 | 10.80.66.167 |
| 86 | 10.80.66.168/29 | 10.80.66.169 – 10.80.66.174 | 10.80.66.175 |
| 87 | 10.80.66.176/29 | 10.80.66.177 – 10.80.66.182 | 10.80.66.183 |
| 88 | 10.80.66.184/29 | 10.80.66.185 – 10.80.66.190 | 10.80.66.191 |
| 89 | 10.80.66.192/29 | 10.80.66.193 – 10.80.66.198 | 10.80.66.199 |
| 90 | 10.80.66.200/29 | 10.80.66.201 – 10.80.66.206 | 10.80.66.207 |
| 91 | 10.80.66.208/29 | 10.80.66.209 – 10.80.66.214 | 10.80.66.215 |
| 92 | 10.80.66.216/29 | 10.80.66.217 – 10.80.66.222 | 10.80.66.223 |
| 93 | 10.80.66.224/29 | 10.80.66.225 – 10.80.66.230 | 10.80.66.231 |
| 94 | 10.80.66.232/29 | 10.80.66.233 – 10.80.66.238 | 10.80.66.239 |
| 95 | 10.80.66.240/29 | 10.80.66.241 – 10.80.66.246 | 10.80.66.247 |
| 96 | 10.80.66.248/29 | 10.80.66.249 – 10.80.66.254 | 10.80.66.255 |
| 97 | 10.80.67.0/29 | 10.80.67.1 – 10.80.67.6 | 10.80.67.7 |
| 98 | 10.80.67.8/29 | 10.80.67.9 – 10.80.67.14 | 10.80.67.15 |
| 99 | 10.80.67.16/29 | 10.80.67.17 – 10.80.67.22 | 10.80.67.23 |
| 100 | 10.80.67.24/29 | 10.80.67.25 – 10.80.67.30 | 10.80.67.31 |
| 101 | 10.80.67.32/29 | 10.80.67.33 – 10.80.67.38 | 10.80.67.39 |
| 102 | 10.80.67.40/29 | 10.80.67.41 – 10.80.67.46 | 10.80.67.47 |
| 103 | 10.80.67.48/29 | 10.80.67.49 – 10.80.67.54 | 10.80.67.55 |
| 104 | 10.80.67.56/29 | 10.80.67.57 – 10.80.67.62 | 10.80.67.63 |
| 105 | 10.80.67.64/29 | 10.80.67.65 – 10.80.67.70 | 10.80.67.71 |
| 106 | 10.80.67.72/29 | 10.80.67.73 – 10.80.67.78 | 10.80.67.79 |
| 107 | 10.80.67.80/29 | 10.80.67.81 – 10.80.67.86 | 10.80.67.87 |
| 108 | 10.80.67.88/29 | 10.80.67.89 – 10.80.67.94 | 10.80.67.95 |
| 109 | 10.80.67.96/29 | 10.80.67.97 – 10.80.67.102 | 10.80.67.103 |
| 110 | 10.80.67.104/29 | 10.80.67.105 – 10.80.67.110 | 10.80.67.111 |
| 111 | 10.80.67.112/29 | 10.80.67.113 – 10.80.67.118 | 10.80.67.119 |
| 112 | 10.80.67.120/29 | 10.80.67.121 – 10.80.67.126 | 10.80.67.127 |
| 113 | 10.80.67.128/29 | 10.80.67.129 – 10.80.67.134 | 10.80.67.135 |
| 114 | 10.80.67.136/29 | 10.80.67.137 – 10.80.67.142 | 10.80.67.143 |
| 115 | 10.80.67.144/29 | 10.80.67.145 – 10.80.67.150 | 10.80.67.151 |
| 116 | 10.80.67.152/29 | 10.80.67.153 – 10.80.67.158 | 10.80.67.159 |
| 117 | 10.80.67.160/29 | 10.80.67.161 – 10.80.67.166 | 10.80.67.167 |
| 118 | 10.80.67.168/29 | 10.80.67.169 – 10.80.67.174 | 10.80.67.175 |
| 119 | 10.80.67.176/29 | 10.80.67.177 – 10.80.67.182 | 10.80.67.183 |
| 120 | 10.80.67.184/29 | 10.80.67.185 – 10.80.67.190 | 10.80.67.191 |
| 121 | 10.80.67.192/29 | 10.80.67.193 – 10.80.67.198 | 10.80.67.199 |
| 122 | 10.80.67.200/29 | 10.80.67.201 – 10.80.67.206 | 10.80.67.207 |
| 123 | 10.80.67.208/29 | 10.80.67.209 – 10.80.67.214 | 10.80.67.215 |
| 124 | 10.80.67.216/29 | 10.80.67.217 – 10.80.67.222 | 10.80.67.223 |
| 125 | 10.80.67.224/29 | 10.80.67.225 – 10.80.67.230 | 10.80.67.231 |
| 126 | 10.80.67.232/29 | 10.80.67.233 – 10.80.67.238 | 10.80.67.239 |
| 127 | 10.80.67.240/29 | 10.80.67.241 – 10.80.67.246 | 10.80.67.247 |
| 128 | 10.80.67.248/29 | 10.80.67.249 – 10.80.67.254 | 10.80.67.255 |
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.