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)10.167.132.0/23
network10.167.132.0/23
broadcast10.167.133.255
first host10.167.132.1
last host10.167.133.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.167.132.0/23
address00001010.10100111.10000100.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.10100111.10000100.00000000
broadcast00001010.10100111.10000101.11111111
green = network part, grey = host part
hex0x0aa78400
decimal178750464
reverse dns0.132.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:8400
/23 split into /30 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.167.132.0/30 | 10.167.132.1 – 10.167.132.2 | 10.167.132.3 |
| 2 | 10.167.132.4/30 | 10.167.132.5 – 10.167.132.6 | 10.167.132.7 |
| 3 | 10.167.132.8/30 | 10.167.132.9 – 10.167.132.10 | 10.167.132.11 |
| 4 | 10.167.132.12/30 | 10.167.132.13 – 10.167.132.14 | 10.167.132.15 |
| 5 | 10.167.132.16/30 | 10.167.132.17 – 10.167.132.18 | 10.167.132.19 |
| 6 | 10.167.132.20/30 | 10.167.132.21 – 10.167.132.22 | 10.167.132.23 |
| 7 | 10.167.132.24/30 | 10.167.132.25 – 10.167.132.26 | 10.167.132.27 |
| 8 | 10.167.132.28/30 | 10.167.132.29 – 10.167.132.30 | 10.167.132.31 |
| 9 | 10.167.132.32/30 | 10.167.132.33 – 10.167.132.34 | 10.167.132.35 |
| 10 | 10.167.132.36/30 | 10.167.132.37 – 10.167.132.38 | 10.167.132.39 |
| 11 | 10.167.132.40/30 | 10.167.132.41 – 10.167.132.42 | 10.167.132.43 |
| 12 | 10.167.132.44/30 | 10.167.132.45 – 10.167.132.46 | 10.167.132.47 |
| 13 | 10.167.132.48/30 | 10.167.132.49 – 10.167.132.50 | 10.167.132.51 |
| 14 | 10.167.132.52/30 | 10.167.132.53 – 10.167.132.54 | 10.167.132.55 |
| 15 | 10.167.132.56/30 | 10.167.132.57 – 10.167.132.58 | 10.167.132.59 |
| 16 | 10.167.132.60/30 | 10.167.132.61 – 10.167.132.62 | 10.167.132.63 |
| 17 | 10.167.132.64/30 | 10.167.132.65 – 10.167.132.66 | 10.167.132.67 |
| 18 | 10.167.132.68/30 | 10.167.132.69 – 10.167.132.70 | 10.167.132.71 |
| 19 | 10.167.132.72/30 | 10.167.132.73 – 10.167.132.74 | 10.167.132.75 |
| 20 | 10.167.132.76/30 | 10.167.132.77 – 10.167.132.78 | 10.167.132.79 |
| 21 | 10.167.132.80/30 | 10.167.132.81 – 10.167.132.82 | 10.167.132.83 |
| 22 | 10.167.132.84/30 | 10.167.132.85 – 10.167.132.86 | 10.167.132.87 |
| 23 | 10.167.132.88/30 | 10.167.132.89 – 10.167.132.90 | 10.167.132.91 |
| 24 | 10.167.132.92/30 | 10.167.132.93 – 10.167.132.94 | 10.167.132.95 |
| 25 | 10.167.132.96/30 | 10.167.132.97 – 10.167.132.98 | 10.167.132.99 |
| 26 | 10.167.132.100/30 | 10.167.132.101 – 10.167.132.102 | 10.167.132.103 |
| 27 | 10.167.132.104/30 | 10.167.132.105 – 10.167.132.106 | 10.167.132.107 |
| 28 | 10.167.132.108/30 | 10.167.132.109 – 10.167.132.110 | 10.167.132.111 |
| 29 | 10.167.132.112/30 | 10.167.132.113 – 10.167.132.114 | 10.167.132.115 |
| 30 | 10.167.132.116/30 | 10.167.132.117 – 10.167.132.118 | 10.167.132.119 |
| 31 | 10.167.132.120/30 | 10.167.132.121 – 10.167.132.122 | 10.167.132.123 |
| 32 | 10.167.132.124/30 | 10.167.132.125 – 10.167.132.126 | 10.167.132.127 |
| 33 | 10.167.132.128/30 | 10.167.132.129 – 10.167.132.130 | 10.167.132.131 |
| 34 | 10.167.132.132/30 | 10.167.132.133 – 10.167.132.134 | 10.167.132.135 |
| 35 | 10.167.132.136/30 | 10.167.132.137 – 10.167.132.138 | 10.167.132.139 |
| 36 | 10.167.132.140/30 | 10.167.132.141 – 10.167.132.142 | 10.167.132.143 |
| 37 | 10.167.132.144/30 | 10.167.132.145 – 10.167.132.146 | 10.167.132.147 |
| 38 | 10.167.132.148/30 | 10.167.132.149 – 10.167.132.150 | 10.167.132.151 |
| 39 | 10.167.132.152/30 | 10.167.132.153 – 10.167.132.154 | 10.167.132.155 |
| 40 | 10.167.132.156/30 | 10.167.132.157 – 10.167.132.158 | 10.167.132.159 |
| 41 | 10.167.132.160/30 | 10.167.132.161 – 10.167.132.162 | 10.167.132.163 |
| 42 | 10.167.132.164/30 | 10.167.132.165 – 10.167.132.166 | 10.167.132.167 |
| 43 | 10.167.132.168/30 | 10.167.132.169 – 10.167.132.170 | 10.167.132.171 |
| 44 | 10.167.132.172/30 | 10.167.132.173 – 10.167.132.174 | 10.167.132.175 |
| 45 | 10.167.132.176/30 | 10.167.132.177 – 10.167.132.178 | 10.167.132.179 |
| 46 | 10.167.132.180/30 | 10.167.132.181 – 10.167.132.182 | 10.167.132.183 |
| 47 | 10.167.132.184/30 | 10.167.132.185 – 10.167.132.186 | 10.167.132.187 |
| 48 | 10.167.132.188/30 | 10.167.132.189 – 10.167.132.190 | 10.167.132.191 |
| 49 | 10.167.132.192/30 | 10.167.132.193 – 10.167.132.194 | 10.167.132.195 |
| 50 | 10.167.132.196/30 | 10.167.132.197 – 10.167.132.198 | 10.167.132.199 |
| 51 | 10.167.132.200/30 | 10.167.132.201 – 10.167.132.202 | 10.167.132.203 |
| 52 | 10.167.132.204/30 | 10.167.132.205 – 10.167.132.206 | 10.167.132.207 |
| 53 | 10.167.132.208/30 | 10.167.132.209 – 10.167.132.210 | 10.167.132.211 |
| 54 | 10.167.132.212/30 | 10.167.132.213 – 10.167.132.214 | 10.167.132.215 |
| 55 | 10.167.132.216/30 | 10.167.132.217 – 10.167.132.218 | 10.167.132.219 |
| 56 | 10.167.132.220/30 | 10.167.132.221 – 10.167.132.222 | 10.167.132.223 |
| 57 | 10.167.132.224/30 | 10.167.132.225 – 10.167.132.226 | 10.167.132.227 |
| 58 | 10.167.132.228/30 | 10.167.132.229 – 10.167.132.230 | 10.167.132.231 |
| 59 | 10.167.132.232/30 | 10.167.132.233 – 10.167.132.234 | 10.167.132.235 |
| 60 | 10.167.132.236/30 | 10.167.132.237 – 10.167.132.238 | 10.167.132.239 |
| 61 | 10.167.132.240/30 | 10.167.132.241 – 10.167.132.242 | 10.167.132.243 |
| 62 | 10.167.132.244/30 | 10.167.132.245 – 10.167.132.246 | 10.167.132.247 |
| 63 | 10.167.132.248/30 | 10.167.132.249 – 10.167.132.250 | 10.167.132.251 |
| 64 | 10.167.132.252/30 | 10.167.132.253 – 10.167.132.254 | 10.167.132.255 |
| 65 | 10.167.133.0/30 | 10.167.133.1 – 10.167.133.2 | 10.167.133.3 |
| 66 | 10.167.133.4/30 | 10.167.133.5 – 10.167.133.6 | 10.167.133.7 |
| 67 | 10.167.133.8/30 | 10.167.133.9 – 10.167.133.10 | 10.167.133.11 |
| 68 | 10.167.133.12/30 | 10.167.133.13 – 10.167.133.14 | 10.167.133.15 |
| 69 | 10.167.133.16/30 | 10.167.133.17 – 10.167.133.18 | 10.167.133.19 |
| 70 | 10.167.133.20/30 | 10.167.133.21 – 10.167.133.22 | 10.167.133.23 |
| 71 | 10.167.133.24/30 | 10.167.133.25 – 10.167.133.26 | 10.167.133.27 |
| 72 | 10.167.133.28/30 | 10.167.133.29 – 10.167.133.30 | 10.167.133.31 |
| 73 | 10.167.133.32/30 | 10.167.133.33 – 10.167.133.34 | 10.167.133.35 |
| 74 | 10.167.133.36/30 | 10.167.133.37 – 10.167.133.38 | 10.167.133.39 |
| 75 | 10.167.133.40/30 | 10.167.133.41 – 10.167.133.42 | 10.167.133.43 |
| 76 | 10.167.133.44/30 | 10.167.133.45 – 10.167.133.46 | 10.167.133.47 |
| 77 | 10.167.133.48/30 | 10.167.133.49 – 10.167.133.50 | 10.167.133.51 |
| 78 | 10.167.133.52/30 | 10.167.133.53 – 10.167.133.54 | 10.167.133.55 |
| 79 | 10.167.133.56/30 | 10.167.133.57 – 10.167.133.58 | 10.167.133.59 |
| 80 | 10.167.133.60/30 | 10.167.133.61 – 10.167.133.62 | 10.167.133.63 |
| 81 | 10.167.133.64/30 | 10.167.133.65 – 10.167.133.66 | 10.167.133.67 |
| 82 | 10.167.133.68/30 | 10.167.133.69 – 10.167.133.70 | 10.167.133.71 |
| 83 | 10.167.133.72/30 | 10.167.133.73 – 10.167.133.74 | 10.167.133.75 |
| 84 | 10.167.133.76/30 | 10.167.133.77 – 10.167.133.78 | 10.167.133.79 |
| 85 | 10.167.133.80/30 | 10.167.133.81 – 10.167.133.82 | 10.167.133.83 |
| 86 | 10.167.133.84/30 | 10.167.133.85 – 10.167.133.86 | 10.167.133.87 |
| 87 | 10.167.133.88/30 | 10.167.133.89 – 10.167.133.90 | 10.167.133.91 |
| 88 | 10.167.133.92/30 | 10.167.133.93 – 10.167.133.94 | 10.167.133.95 |
| 89 | 10.167.133.96/30 | 10.167.133.97 – 10.167.133.98 | 10.167.133.99 |
| 90 | 10.167.133.100/30 | 10.167.133.101 – 10.167.133.102 | 10.167.133.103 |
| 91 | 10.167.133.104/30 | 10.167.133.105 – 10.167.133.106 | 10.167.133.107 |
| 92 | 10.167.133.108/30 | 10.167.133.109 – 10.167.133.110 | 10.167.133.111 |
| 93 | 10.167.133.112/30 | 10.167.133.113 – 10.167.133.114 | 10.167.133.115 |
| 94 | 10.167.133.116/30 | 10.167.133.117 – 10.167.133.118 | 10.167.133.119 |
| 95 | 10.167.133.120/30 | 10.167.133.121 – 10.167.133.122 | 10.167.133.123 |
| 96 | 10.167.133.124/30 | 10.167.133.125 – 10.167.133.126 | 10.167.133.127 |
| 97 | 10.167.133.128/30 | 10.167.133.129 – 10.167.133.130 | 10.167.133.131 |
| 98 | 10.167.133.132/30 | 10.167.133.133 – 10.167.133.134 | 10.167.133.135 |
| 99 | 10.167.133.136/30 | 10.167.133.137 – 10.167.133.138 | 10.167.133.139 |
| 100 | 10.167.133.140/30 | 10.167.133.141 – 10.167.133.142 | 10.167.133.143 |
| 101 | 10.167.133.144/30 | 10.167.133.145 – 10.167.133.146 | 10.167.133.147 |
| 102 | 10.167.133.148/30 | 10.167.133.149 – 10.167.133.150 | 10.167.133.151 |
| 103 | 10.167.133.152/30 | 10.167.133.153 – 10.167.133.154 | 10.167.133.155 |
| 104 | 10.167.133.156/30 | 10.167.133.157 – 10.167.133.158 | 10.167.133.159 |
| 105 | 10.167.133.160/30 | 10.167.133.161 – 10.167.133.162 | 10.167.133.163 |
| 106 | 10.167.133.164/30 | 10.167.133.165 – 10.167.133.166 | 10.167.133.167 |
| 107 | 10.167.133.168/30 | 10.167.133.169 – 10.167.133.170 | 10.167.133.171 |
| 108 | 10.167.133.172/30 | 10.167.133.173 – 10.167.133.174 | 10.167.133.175 |
| 109 | 10.167.133.176/30 | 10.167.133.177 – 10.167.133.178 | 10.167.133.179 |
| 110 | 10.167.133.180/30 | 10.167.133.181 – 10.167.133.182 | 10.167.133.183 |
| 111 | 10.167.133.184/30 | 10.167.133.185 – 10.167.133.186 | 10.167.133.187 |
| 112 | 10.167.133.188/30 | 10.167.133.189 – 10.167.133.190 | 10.167.133.191 |
| 113 | 10.167.133.192/30 | 10.167.133.193 – 10.167.133.194 | 10.167.133.195 |
| 114 | 10.167.133.196/30 | 10.167.133.197 – 10.167.133.198 | 10.167.133.199 |
| 115 | 10.167.133.200/30 | 10.167.133.201 – 10.167.133.202 | 10.167.133.203 |
| 116 | 10.167.133.204/30 | 10.167.133.205 – 10.167.133.206 | 10.167.133.207 |
| 117 | 10.167.133.208/30 | 10.167.133.209 – 10.167.133.210 | 10.167.133.211 |
| 118 | 10.167.133.212/30 | 10.167.133.213 – 10.167.133.214 | 10.167.133.215 |
| 119 | 10.167.133.216/30 | 10.167.133.217 – 10.167.133.218 | 10.167.133.219 |
| 120 | 10.167.133.220/30 | 10.167.133.221 – 10.167.133.222 | 10.167.133.223 |
| 121 | 10.167.133.224/30 | 10.167.133.225 – 10.167.133.226 | 10.167.133.227 |
| 122 | 10.167.133.228/30 | 10.167.133.229 – 10.167.133.230 | 10.167.133.231 |
| 123 | 10.167.133.232/30 | 10.167.133.233 – 10.167.133.234 | 10.167.133.235 |
| 124 | 10.167.133.236/30 | 10.167.133.237 – 10.167.133.238 | 10.167.133.239 |
| 125 | 10.167.133.240/30 | 10.167.133.241 – 10.167.133.242 | 10.167.133.243 |
| 126 | 10.167.133.244/30 | 10.167.133.245 – 10.167.133.246 | 10.167.133.247 |
| 127 | 10.167.133.248/30 | 10.167.133.249 – 10.167.133.250 | 10.167.133.251 |
| 128 | 10.167.133.252/30 | 10.167.133.253 – 10.167.133.254 | 10.167.133.255 |
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.