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)10.166.196.0/22
network10.166.196.0/22
broadcast10.166.199.255
first host10.166.196.1
last host10.166.199.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.166.196.0/22
address00001010.10100110.11000100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.10100110.11000100.00000000
broadcast00001010.10100110.11000111.11111111
green = network part, grey = host part
hex0x0aa6c400
decimal178701312
reverse dns0.196.166.10.in-addr.arpa
ipv4-mapped::ffff:aa6:c400
/22 split into /29 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.166.196.0/29 | 10.166.196.1 – 10.166.196.6 | 10.166.196.7 |
| 2 | 10.166.196.8/29 | 10.166.196.9 – 10.166.196.14 | 10.166.196.15 |
| 3 | 10.166.196.16/29 | 10.166.196.17 – 10.166.196.22 | 10.166.196.23 |
| 4 | 10.166.196.24/29 | 10.166.196.25 – 10.166.196.30 | 10.166.196.31 |
| 5 | 10.166.196.32/29 | 10.166.196.33 – 10.166.196.38 | 10.166.196.39 |
| 6 | 10.166.196.40/29 | 10.166.196.41 – 10.166.196.46 | 10.166.196.47 |
| 7 | 10.166.196.48/29 | 10.166.196.49 – 10.166.196.54 | 10.166.196.55 |
| 8 | 10.166.196.56/29 | 10.166.196.57 – 10.166.196.62 | 10.166.196.63 |
| 9 | 10.166.196.64/29 | 10.166.196.65 – 10.166.196.70 | 10.166.196.71 |
| 10 | 10.166.196.72/29 | 10.166.196.73 – 10.166.196.78 | 10.166.196.79 |
| 11 | 10.166.196.80/29 | 10.166.196.81 – 10.166.196.86 | 10.166.196.87 |
| 12 | 10.166.196.88/29 | 10.166.196.89 – 10.166.196.94 | 10.166.196.95 |
| 13 | 10.166.196.96/29 | 10.166.196.97 – 10.166.196.102 | 10.166.196.103 |
| 14 | 10.166.196.104/29 | 10.166.196.105 – 10.166.196.110 | 10.166.196.111 |
| 15 | 10.166.196.112/29 | 10.166.196.113 – 10.166.196.118 | 10.166.196.119 |
| 16 | 10.166.196.120/29 | 10.166.196.121 – 10.166.196.126 | 10.166.196.127 |
| 17 | 10.166.196.128/29 | 10.166.196.129 – 10.166.196.134 | 10.166.196.135 |
| 18 | 10.166.196.136/29 | 10.166.196.137 – 10.166.196.142 | 10.166.196.143 |
| 19 | 10.166.196.144/29 | 10.166.196.145 – 10.166.196.150 | 10.166.196.151 |
| 20 | 10.166.196.152/29 | 10.166.196.153 – 10.166.196.158 | 10.166.196.159 |
| 21 | 10.166.196.160/29 | 10.166.196.161 – 10.166.196.166 | 10.166.196.167 |
| 22 | 10.166.196.168/29 | 10.166.196.169 – 10.166.196.174 | 10.166.196.175 |
| 23 | 10.166.196.176/29 | 10.166.196.177 – 10.166.196.182 | 10.166.196.183 |
| 24 | 10.166.196.184/29 | 10.166.196.185 – 10.166.196.190 | 10.166.196.191 |
| 25 | 10.166.196.192/29 | 10.166.196.193 – 10.166.196.198 | 10.166.196.199 |
| 26 | 10.166.196.200/29 | 10.166.196.201 – 10.166.196.206 | 10.166.196.207 |
| 27 | 10.166.196.208/29 | 10.166.196.209 – 10.166.196.214 | 10.166.196.215 |
| 28 | 10.166.196.216/29 | 10.166.196.217 – 10.166.196.222 | 10.166.196.223 |
| 29 | 10.166.196.224/29 | 10.166.196.225 – 10.166.196.230 | 10.166.196.231 |
| 30 | 10.166.196.232/29 | 10.166.196.233 – 10.166.196.238 | 10.166.196.239 |
| 31 | 10.166.196.240/29 | 10.166.196.241 – 10.166.196.246 | 10.166.196.247 |
| 32 | 10.166.196.248/29 | 10.166.196.249 – 10.166.196.254 | 10.166.196.255 |
| 33 | 10.166.197.0/29 | 10.166.197.1 – 10.166.197.6 | 10.166.197.7 |
| 34 | 10.166.197.8/29 | 10.166.197.9 – 10.166.197.14 | 10.166.197.15 |
| 35 | 10.166.197.16/29 | 10.166.197.17 – 10.166.197.22 | 10.166.197.23 |
| 36 | 10.166.197.24/29 | 10.166.197.25 – 10.166.197.30 | 10.166.197.31 |
| 37 | 10.166.197.32/29 | 10.166.197.33 – 10.166.197.38 | 10.166.197.39 |
| 38 | 10.166.197.40/29 | 10.166.197.41 – 10.166.197.46 | 10.166.197.47 |
| 39 | 10.166.197.48/29 | 10.166.197.49 – 10.166.197.54 | 10.166.197.55 |
| 40 | 10.166.197.56/29 | 10.166.197.57 – 10.166.197.62 | 10.166.197.63 |
| 41 | 10.166.197.64/29 | 10.166.197.65 – 10.166.197.70 | 10.166.197.71 |
| 42 | 10.166.197.72/29 | 10.166.197.73 – 10.166.197.78 | 10.166.197.79 |
| 43 | 10.166.197.80/29 | 10.166.197.81 – 10.166.197.86 | 10.166.197.87 |
| 44 | 10.166.197.88/29 | 10.166.197.89 – 10.166.197.94 | 10.166.197.95 |
| 45 | 10.166.197.96/29 | 10.166.197.97 – 10.166.197.102 | 10.166.197.103 |
| 46 | 10.166.197.104/29 | 10.166.197.105 – 10.166.197.110 | 10.166.197.111 |
| 47 | 10.166.197.112/29 | 10.166.197.113 – 10.166.197.118 | 10.166.197.119 |
| 48 | 10.166.197.120/29 | 10.166.197.121 – 10.166.197.126 | 10.166.197.127 |
| 49 | 10.166.197.128/29 | 10.166.197.129 – 10.166.197.134 | 10.166.197.135 |
| 50 | 10.166.197.136/29 | 10.166.197.137 – 10.166.197.142 | 10.166.197.143 |
| 51 | 10.166.197.144/29 | 10.166.197.145 – 10.166.197.150 | 10.166.197.151 |
| 52 | 10.166.197.152/29 | 10.166.197.153 – 10.166.197.158 | 10.166.197.159 |
| 53 | 10.166.197.160/29 | 10.166.197.161 – 10.166.197.166 | 10.166.197.167 |
| 54 | 10.166.197.168/29 | 10.166.197.169 – 10.166.197.174 | 10.166.197.175 |
| 55 | 10.166.197.176/29 | 10.166.197.177 – 10.166.197.182 | 10.166.197.183 |
| 56 | 10.166.197.184/29 | 10.166.197.185 – 10.166.197.190 | 10.166.197.191 |
| 57 | 10.166.197.192/29 | 10.166.197.193 – 10.166.197.198 | 10.166.197.199 |
| 58 | 10.166.197.200/29 | 10.166.197.201 – 10.166.197.206 | 10.166.197.207 |
| 59 | 10.166.197.208/29 | 10.166.197.209 – 10.166.197.214 | 10.166.197.215 |
| 60 | 10.166.197.216/29 | 10.166.197.217 – 10.166.197.222 | 10.166.197.223 |
| 61 | 10.166.197.224/29 | 10.166.197.225 – 10.166.197.230 | 10.166.197.231 |
| 62 | 10.166.197.232/29 | 10.166.197.233 – 10.166.197.238 | 10.166.197.239 |
| 63 | 10.166.197.240/29 | 10.166.197.241 – 10.166.197.246 | 10.166.197.247 |
| 64 | 10.166.197.248/29 | 10.166.197.249 – 10.166.197.254 | 10.166.197.255 |
| 65 | 10.166.198.0/29 | 10.166.198.1 – 10.166.198.6 | 10.166.198.7 |
| 66 | 10.166.198.8/29 | 10.166.198.9 – 10.166.198.14 | 10.166.198.15 |
| 67 | 10.166.198.16/29 | 10.166.198.17 – 10.166.198.22 | 10.166.198.23 |
| 68 | 10.166.198.24/29 | 10.166.198.25 – 10.166.198.30 | 10.166.198.31 |
| 69 | 10.166.198.32/29 | 10.166.198.33 – 10.166.198.38 | 10.166.198.39 |
| 70 | 10.166.198.40/29 | 10.166.198.41 – 10.166.198.46 | 10.166.198.47 |
| 71 | 10.166.198.48/29 | 10.166.198.49 – 10.166.198.54 | 10.166.198.55 |
| 72 | 10.166.198.56/29 | 10.166.198.57 – 10.166.198.62 | 10.166.198.63 |
| 73 | 10.166.198.64/29 | 10.166.198.65 – 10.166.198.70 | 10.166.198.71 |
| 74 | 10.166.198.72/29 | 10.166.198.73 – 10.166.198.78 | 10.166.198.79 |
| 75 | 10.166.198.80/29 | 10.166.198.81 – 10.166.198.86 | 10.166.198.87 |
| 76 | 10.166.198.88/29 | 10.166.198.89 – 10.166.198.94 | 10.166.198.95 |
| 77 | 10.166.198.96/29 | 10.166.198.97 – 10.166.198.102 | 10.166.198.103 |
| 78 | 10.166.198.104/29 | 10.166.198.105 – 10.166.198.110 | 10.166.198.111 |
| 79 | 10.166.198.112/29 | 10.166.198.113 – 10.166.198.118 | 10.166.198.119 |
| 80 | 10.166.198.120/29 | 10.166.198.121 – 10.166.198.126 | 10.166.198.127 |
| 81 | 10.166.198.128/29 | 10.166.198.129 – 10.166.198.134 | 10.166.198.135 |
| 82 | 10.166.198.136/29 | 10.166.198.137 – 10.166.198.142 | 10.166.198.143 |
| 83 | 10.166.198.144/29 | 10.166.198.145 – 10.166.198.150 | 10.166.198.151 |
| 84 | 10.166.198.152/29 | 10.166.198.153 – 10.166.198.158 | 10.166.198.159 |
| 85 | 10.166.198.160/29 | 10.166.198.161 – 10.166.198.166 | 10.166.198.167 |
| 86 | 10.166.198.168/29 | 10.166.198.169 – 10.166.198.174 | 10.166.198.175 |
| 87 | 10.166.198.176/29 | 10.166.198.177 – 10.166.198.182 | 10.166.198.183 |
| 88 | 10.166.198.184/29 | 10.166.198.185 – 10.166.198.190 | 10.166.198.191 |
| 89 | 10.166.198.192/29 | 10.166.198.193 – 10.166.198.198 | 10.166.198.199 |
| 90 | 10.166.198.200/29 | 10.166.198.201 – 10.166.198.206 | 10.166.198.207 |
| 91 | 10.166.198.208/29 | 10.166.198.209 – 10.166.198.214 | 10.166.198.215 |
| 92 | 10.166.198.216/29 | 10.166.198.217 – 10.166.198.222 | 10.166.198.223 |
| 93 | 10.166.198.224/29 | 10.166.198.225 – 10.166.198.230 | 10.166.198.231 |
| 94 | 10.166.198.232/29 | 10.166.198.233 – 10.166.198.238 | 10.166.198.239 |
| 95 | 10.166.198.240/29 | 10.166.198.241 – 10.166.198.246 | 10.166.198.247 |
| 96 | 10.166.198.248/29 | 10.166.198.249 – 10.166.198.254 | 10.166.198.255 |
| 97 | 10.166.199.0/29 | 10.166.199.1 – 10.166.199.6 | 10.166.199.7 |
| 98 | 10.166.199.8/29 | 10.166.199.9 – 10.166.199.14 | 10.166.199.15 |
| 99 | 10.166.199.16/29 | 10.166.199.17 – 10.166.199.22 | 10.166.199.23 |
| 100 | 10.166.199.24/29 | 10.166.199.25 – 10.166.199.30 | 10.166.199.31 |
| 101 | 10.166.199.32/29 | 10.166.199.33 – 10.166.199.38 | 10.166.199.39 |
| 102 | 10.166.199.40/29 | 10.166.199.41 – 10.166.199.46 | 10.166.199.47 |
| 103 | 10.166.199.48/29 | 10.166.199.49 – 10.166.199.54 | 10.166.199.55 |
| 104 | 10.166.199.56/29 | 10.166.199.57 – 10.166.199.62 | 10.166.199.63 |
| 105 | 10.166.199.64/29 | 10.166.199.65 – 10.166.199.70 | 10.166.199.71 |
| 106 | 10.166.199.72/29 | 10.166.199.73 – 10.166.199.78 | 10.166.199.79 |
| 107 | 10.166.199.80/29 | 10.166.199.81 – 10.166.199.86 | 10.166.199.87 |
| 108 | 10.166.199.88/29 | 10.166.199.89 – 10.166.199.94 | 10.166.199.95 |
| 109 | 10.166.199.96/29 | 10.166.199.97 – 10.166.199.102 | 10.166.199.103 |
| 110 | 10.166.199.104/29 | 10.166.199.105 – 10.166.199.110 | 10.166.199.111 |
| 111 | 10.166.199.112/29 | 10.166.199.113 – 10.166.199.118 | 10.166.199.119 |
| 112 | 10.166.199.120/29 | 10.166.199.121 – 10.166.199.126 | 10.166.199.127 |
| 113 | 10.166.199.128/29 | 10.166.199.129 – 10.166.199.134 | 10.166.199.135 |
| 114 | 10.166.199.136/29 | 10.166.199.137 – 10.166.199.142 | 10.166.199.143 |
| 115 | 10.166.199.144/29 | 10.166.199.145 – 10.166.199.150 | 10.166.199.151 |
| 116 | 10.166.199.152/29 | 10.166.199.153 – 10.166.199.158 | 10.166.199.159 |
| 117 | 10.166.199.160/29 | 10.166.199.161 – 10.166.199.166 | 10.166.199.167 |
| 118 | 10.166.199.168/29 | 10.166.199.169 – 10.166.199.174 | 10.166.199.175 |
| 119 | 10.166.199.176/29 | 10.166.199.177 – 10.166.199.182 | 10.166.199.183 |
| 120 | 10.166.199.184/29 | 10.166.199.185 – 10.166.199.190 | 10.166.199.191 |
| 121 | 10.166.199.192/29 | 10.166.199.193 – 10.166.199.198 | 10.166.199.199 |
| 122 | 10.166.199.200/29 | 10.166.199.201 – 10.166.199.206 | 10.166.199.207 |
| 123 | 10.166.199.208/29 | 10.166.199.209 – 10.166.199.214 | 10.166.199.215 |
| 124 | 10.166.199.216/29 | 10.166.199.217 – 10.166.199.222 | 10.166.199.223 |
| 125 | 10.166.199.224/29 | 10.166.199.225 – 10.166.199.230 | 10.166.199.231 |
| 126 | 10.166.199.232/29 | 10.166.199.233 – 10.166.199.238 | 10.166.199.239 |
| 127 | 10.166.199.240/29 | 10.166.199.241 – 10.166.199.246 | 10.166.199.247 |
| 128 | 10.166.199.248/29 | 10.166.199.249 – 10.166.199.254 | 10.166.199.255 |
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.