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)10.167.106.0/23
network10.167.106.0/23
broadcast10.167.107.255
first host10.167.106.1
last host10.167.107.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.167.106.0/23
address00001010.10100111.01101010.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.10100111.01101010.00000000
broadcast00001010.10100111.01101011.11111111
green = network part, grey = host part
hex0x0aa76a00
decimal178743808
reverse dns0.106.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:6a00
/23 split into /30 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.167.106.0/30 | 10.167.106.1 – 10.167.106.2 | 10.167.106.3 |
| 2 | 10.167.106.4/30 | 10.167.106.5 – 10.167.106.6 | 10.167.106.7 |
| 3 | 10.167.106.8/30 | 10.167.106.9 – 10.167.106.10 | 10.167.106.11 |
| 4 | 10.167.106.12/30 | 10.167.106.13 – 10.167.106.14 | 10.167.106.15 |
| 5 | 10.167.106.16/30 | 10.167.106.17 – 10.167.106.18 | 10.167.106.19 |
| 6 | 10.167.106.20/30 | 10.167.106.21 – 10.167.106.22 | 10.167.106.23 |
| 7 | 10.167.106.24/30 | 10.167.106.25 – 10.167.106.26 | 10.167.106.27 |
| 8 | 10.167.106.28/30 | 10.167.106.29 – 10.167.106.30 | 10.167.106.31 |
| 9 | 10.167.106.32/30 | 10.167.106.33 – 10.167.106.34 | 10.167.106.35 |
| 10 | 10.167.106.36/30 | 10.167.106.37 – 10.167.106.38 | 10.167.106.39 |
| 11 | 10.167.106.40/30 | 10.167.106.41 – 10.167.106.42 | 10.167.106.43 |
| 12 | 10.167.106.44/30 | 10.167.106.45 – 10.167.106.46 | 10.167.106.47 |
| 13 | 10.167.106.48/30 | 10.167.106.49 – 10.167.106.50 | 10.167.106.51 |
| 14 | 10.167.106.52/30 | 10.167.106.53 – 10.167.106.54 | 10.167.106.55 |
| 15 | 10.167.106.56/30 | 10.167.106.57 – 10.167.106.58 | 10.167.106.59 |
| 16 | 10.167.106.60/30 | 10.167.106.61 – 10.167.106.62 | 10.167.106.63 |
| 17 | 10.167.106.64/30 | 10.167.106.65 – 10.167.106.66 | 10.167.106.67 |
| 18 | 10.167.106.68/30 | 10.167.106.69 – 10.167.106.70 | 10.167.106.71 |
| 19 | 10.167.106.72/30 | 10.167.106.73 – 10.167.106.74 | 10.167.106.75 |
| 20 | 10.167.106.76/30 | 10.167.106.77 – 10.167.106.78 | 10.167.106.79 |
| 21 | 10.167.106.80/30 | 10.167.106.81 – 10.167.106.82 | 10.167.106.83 |
| 22 | 10.167.106.84/30 | 10.167.106.85 – 10.167.106.86 | 10.167.106.87 |
| 23 | 10.167.106.88/30 | 10.167.106.89 – 10.167.106.90 | 10.167.106.91 |
| 24 | 10.167.106.92/30 | 10.167.106.93 – 10.167.106.94 | 10.167.106.95 |
| 25 | 10.167.106.96/30 | 10.167.106.97 – 10.167.106.98 | 10.167.106.99 |
| 26 | 10.167.106.100/30 | 10.167.106.101 – 10.167.106.102 | 10.167.106.103 |
| 27 | 10.167.106.104/30 | 10.167.106.105 – 10.167.106.106 | 10.167.106.107 |
| 28 | 10.167.106.108/30 | 10.167.106.109 – 10.167.106.110 | 10.167.106.111 |
| 29 | 10.167.106.112/30 | 10.167.106.113 – 10.167.106.114 | 10.167.106.115 |
| 30 | 10.167.106.116/30 | 10.167.106.117 – 10.167.106.118 | 10.167.106.119 |
| 31 | 10.167.106.120/30 | 10.167.106.121 – 10.167.106.122 | 10.167.106.123 |
| 32 | 10.167.106.124/30 | 10.167.106.125 – 10.167.106.126 | 10.167.106.127 |
| 33 | 10.167.106.128/30 | 10.167.106.129 – 10.167.106.130 | 10.167.106.131 |
| 34 | 10.167.106.132/30 | 10.167.106.133 – 10.167.106.134 | 10.167.106.135 |
| 35 | 10.167.106.136/30 | 10.167.106.137 – 10.167.106.138 | 10.167.106.139 |
| 36 | 10.167.106.140/30 | 10.167.106.141 – 10.167.106.142 | 10.167.106.143 |
| 37 | 10.167.106.144/30 | 10.167.106.145 – 10.167.106.146 | 10.167.106.147 |
| 38 | 10.167.106.148/30 | 10.167.106.149 – 10.167.106.150 | 10.167.106.151 |
| 39 | 10.167.106.152/30 | 10.167.106.153 – 10.167.106.154 | 10.167.106.155 |
| 40 | 10.167.106.156/30 | 10.167.106.157 – 10.167.106.158 | 10.167.106.159 |
| 41 | 10.167.106.160/30 | 10.167.106.161 – 10.167.106.162 | 10.167.106.163 |
| 42 | 10.167.106.164/30 | 10.167.106.165 – 10.167.106.166 | 10.167.106.167 |
| 43 | 10.167.106.168/30 | 10.167.106.169 – 10.167.106.170 | 10.167.106.171 |
| 44 | 10.167.106.172/30 | 10.167.106.173 – 10.167.106.174 | 10.167.106.175 |
| 45 | 10.167.106.176/30 | 10.167.106.177 – 10.167.106.178 | 10.167.106.179 |
| 46 | 10.167.106.180/30 | 10.167.106.181 – 10.167.106.182 | 10.167.106.183 |
| 47 | 10.167.106.184/30 | 10.167.106.185 – 10.167.106.186 | 10.167.106.187 |
| 48 | 10.167.106.188/30 | 10.167.106.189 – 10.167.106.190 | 10.167.106.191 |
| 49 | 10.167.106.192/30 | 10.167.106.193 – 10.167.106.194 | 10.167.106.195 |
| 50 | 10.167.106.196/30 | 10.167.106.197 – 10.167.106.198 | 10.167.106.199 |
| 51 | 10.167.106.200/30 | 10.167.106.201 – 10.167.106.202 | 10.167.106.203 |
| 52 | 10.167.106.204/30 | 10.167.106.205 – 10.167.106.206 | 10.167.106.207 |
| 53 | 10.167.106.208/30 | 10.167.106.209 – 10.167.106.210 | 10.167.106.211 |
| 54 | 10.167.106.212/30 | 10.167.106.213 – 10.167.106.214 | 10.167.106.215 |
| 55 | 10.167.106.216/30 | 10.167.106.217 – 10.167.106.218 | 10.167.106.219 |
| 56 | 10.167.106.220/30 | 10.167.106.221 – 10.167.106.222 | 10.167.106.223 |
| 57 | 10.167.106.224/30 | 10.167.106.225 – 10.167.106.226 | 10.167.106.227 |
| 58 | 10.167.106.228/30 | 10.167.106.229 – 10.167.106.230 | 10.167.106.231 |
| 59 | 10.167.106.232/30 | 10.167.106.233 – 10.167.106.234 | 10.167.106.235 |
| 60 | 10.167.106.236/30 | 10.167.106.237 – 10.167.106.238 | 10.167.106.239 |
| 61 | 10.167.106.240/30 | 10.167.106.241 – 10.167.106.242 | 10.167.106.243 |
| 62 | 10.167.106.244/30 | 10.167.106.245 – 10.167.106.246 | 10.167.106.247 |
| 63 | 10.167.106.248/30 | 10.167.106.249 – 10.167.106.250 | 10.167.106.251 |
| 64 | 10.167.106.252/30 | 10.167.106.253 – 10.167.106.254 | 10.167.106.255 |
| 65 | 10.167.107.0/30 | 10.167.107.1 – 10.167.107.2 | 10.167.107.3 |
| 66 | 10.167.107.4/30 | 10.167.107.5 – 10.167.107.6 | 10.167.107.7 |
| 67 | 10.167.107.8/30 | 10.167.107.9 – 10.167.107.10 | 10.167.107.11 |
| 68 | 10.167.107.12/30 | 10.167.107.13 – 10.167.107.14 | 10.167.107.15 |
| 69 | 10.167.107.16/30 | 10.167.107.17 – 10.167.107.18 | 10.167.107.19 |
| 70 | 10.167.107.20/30 | 10.167.107.21 – 10.167.107.22 | 10.167.107.23 |
| 71 | 10.167.107.24/30 | 10.167.107.25 – 10.167.107.26 | 10.167.107.27 |
| 72 | 10.167.107.28/30 | 10.167.107.29 – 10.167.107.30 | 10.167.107.31 |
| 73 | 10.167.107.32/30 | 10.167.107.33 – 10.167.107.34 | 10.167.107.35 |
| 74 | 10.167.107.36/30 | 10.167.107.37 – 10.167.107.38 | 10.167.107.39 |
| 75 | 10.167.107.40/30 | 10.167.107.41 – 10.167.107.42 | 10.167.107.43 |
| 76 | 10.167.107.44/30 | 10.167.107.45 – 10.167.107.46 | 10.167.107.47 |
| 77 | 10.167.107.48/30 | 10.167.107.49 – 10.167.107.50 | 10.167.107.51 |
| 78 | 10.167.107.52/30 | 10.167.107.53 – 10.167.107.54 | 10.167.107.55 |
| 79 | 10.167.107.56/30 | 10.167.107.57 – 10.167.107.58 | 10.167.107.59 |
| 80 | 10.167.107.60/30 | 10.167.107.61 – 10.167.107.62 | 10.167.107.63 |
| 81 | 10.167.107.64/30 | 10.167.107.65 – 10.167.107.66 | 10.167.107.67 |
| 82 | 10.167.107.68/30 | 10.167.107.69 – 10.167.107.70 | 10.167.107.71 |
| 83 | 10.167.107.72/30 | 10.167.107.73 – 10.167.107.74 | 10.167.107.75 |
| 84 | 10.167.107.76/30 | 10.167.107.77 – 10.167.107.78 | 10.167.107.79 |
| 85 | 10.167.107.80/30 | 10.167.107.81 – 10.167.107.82 | 10.167.107.83 |
| 86 | 10.167.107.84/30 | 10.167.107.85 – 10.167.107.86 | 10.167.107.87 |
| 87 | 10.167.107.88/30 | 10.167.107.89 – 10.167.107.90 | 10.167.107.91 |
| 88 | 10.167.107.92/30 | 10.167.107.93 – 10.167.107.94 | 10.167.107.95 |
| 89 | 10.167.107.96/30 | 10.167.107.97 – 10.167.107.98 | 10.167.107.99 |
| 90 | 10.167.107.100/30 | 10.167.107.101 – 10.167.107.102 | 10.167.107.103 |
| 91 | 10.167.107.104/30 | 10.167.107.105 – 10.167.107.106 | 10.167.107.107 |
| 92 | 10.167.107.108/30 | 10.167.107.109 – 10.167.107.110 | 10.167.107.111 |
| 93 | 10.167.107.112/30 | 10.167.107.113 – 10.167.107.114 | 10.167.107.115 |
| 94 | 10.167.107.116/30 | 10.167.107.117 – 10.167.107.118 | 10.167.107.119 |
| 95 | 10.167.107.120/30 | 10.167.107.121 – 10.167.107.122 | 10.167.107.123 |
| 96 | 10.167.107.124/30 | 10.167.107.125 – 10.167.107.126 | 10.167.107.127 |
| 97 | 10.167.107.128/30 | 10.167.107.129 – 10.167.107.130 | 10.167.107.131 |
| 98 | 10.167.107.132/30 | 10.167.107.133 – 10.167.107.134 | 10.167.107.135 |
| 99 | 10.167.107.136/30 | 10.167.107.137 – 10.167.107.138 | 10.167.107.139 |
| 100 | 10.167.107.140/30 | 10.167.107.141 – 10.167.107.142 | 10.167.107.143 |
| 101 | 10.167.107.144/30 | 10.167.107.145 – 10.167.107.146 | 10.167.107.147 |
| 102 | 10.167.107.148/30 | 10.167.107.149 – 10.167.107.150 | 10.167.107.151 |
| 103 | 10.167.107.152/30 | 10.167.107.153 – 10.167.107.154 | 10.167.107.155 |
| 104 | 10.167.107.156/30 | 10.167.107.157 – 10.167.107.158 | 10.167.107.159 |
| 105 | 10.167.107.160/30 | 10.167.107.161 – 10.167.107.162 | 10.167.107.163 |
| 106 | 10.167.107.164/30 | 10.167.107.165 – 10.167.107.166 | 10.167.107.167 |
| 107 | 10.167.107.168/30 | 10.167.107.169 – 10.167.107.170 | 10.167.107.171 |
| 108 | 10.167.107.172/30 | 10.167.107.173 – 10.167.107.174 | 10.167.107.175 |
| 109 | 10.167.107.176/30 | 10.167.107.177 – 10.167.107.178 | 10.167.107.179 |
| 110 | 10.167.107.180/30 | 10.167.107.181 – 10.167.107.182 | 10.167.107.183 |
| 111 | 10.167.107.184/30 | 10.167.107.185 – 10.167.107.186 | 10.167.107.187 |
| 112 | 10.167.107.188/30 | 10.167.107.189 – 10.167.107.190 | 10.167.107.191 |
| 113 | 10.167.107.192/30 | 10.167.107.193 – 10.167.107.194 | 10.167.107.195 |
| 114 | 10.167.107.196/30 | 10.167.107.197 – 10.167.107.198 | 10.167.107.199 |
| 115 | 10.167.107.200/30 | 10.167.107.201 – 10.167.107.202 | 10.167.107.203 |
| 116 | 10.167.107.204/30 | 10.167.107.205 – 10.167.107.206 | 10.167.107.207 |
| 117 | 10.167.107.208/30 | 10.167.107.209 – 10.167.107.210 | 10.167.107.211 |
| 118 | 10.167.107.212/30 | 10.167.107.213 – 10.167.107.214 | 10.167.107.215 |
| 119 | 10.167.107.216/30 | 10.167.107.217 – 10.167.107.218 | 10.167.107.219 |
| 120 | 10.167.107.220/30 | 10.167.107.221 – 10.167.107.222 | 10.167.107.223 |
| 121 | 10.167.107.224/30 | 10.167.107.225 – 10.167.107.226 | 10.167.107.227 |
| 122 | 10.167.107.228/30 | 10.167.107.229 – 10.167.107.230 | 10.167.107.231 |
| 123 | 10.167.107.232/30 | 10.167.107.233 – 10.167.107.234 | 10.167.107.235 |
| 124 | 10.167.107.236/30 | 10.167.107.237 – 10.167.107.238 | 10.167.107.239 |
| 125 | 10.167.107.240/30 | 10.167.107.241 – 10.167.107.242 | 10.167.107.243 |
| 126 | 10.167.107.244/30 | 10.167.107.245 – 10.167.107.246 | 10.167.107.247 |
| 127 | 10.167.107.248/30 | 10.167.107.249 – 10.167.107.250 | 10.167.107.251 |
| 128 | 10.167.107.252/30 | 10.167.107.253 – 10.167.107.254 | 10.167.107.255 |
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 /23 |
|---|---|---|---|---|
| /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 | - |
| /23 | 255.255.254.0 | 512 | 510 | 1 |
| /24 | 255.255.255.0 | 256 | 254 | 2 split → |
| /25 | 255.255.255.128 | 128 | 126 | 4 split → |
| /26 | 255.255.255.192 | 64 | 62 | 8 split → |
| /27 | 255.255.255.224 | 32 | 30 | 16 split → |
| /28 | 255.255.255.240 | 16 | 14 | 32 split → |
| /29 | 255.255.255.248 | 8 | 6 | 64 split → |
| /30 | 255.255.255.252 | 4 | 2 | 128 split → |
| /31 | 255.255.255.254 | 2 | 2 | 256 split → |
| /32 | 255.255.255.255 | 1 | 1 | 512 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.