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)10.232.100.0/23
network10.232.100.0/23
broadcast10.232.101.255
first host10.232.100.1
last host10.232.101.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.232.100.0/23
address00001010.11101000.01100100.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.11101000.01100100.00000000
broadcast00001010.11101000.01100101.11111111
green = network part, grey = host part
hex0x0ae86400
decimal183002112
reverse dns0.100.232.10.in-addr.arpa
ipv4-mapped::ffff:ae8:6400
/23 split into /30 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.232.100.0/30 | 10.232.100.1 – 10.232.100.2 | 10.232.100.3 |
| 2 | 10.232.100.4/30 | 10.232.100.5 – 10.232.100.6 | 10.232.100.7 |
| 3 | 10.232.100.8/30 | 10.232.100.9 – 10.232.100.10 | 10.232.100.11 |
| 4 | 10.232.100.12/30 | 10.232.100.13 – 10.232.100.14 | 10.232.100.15 |
| 5 | 10.232.100.16/30 | 10.232.100.17 – 10.232.100.18 | 10.232.100.19 |
| 6 | 10.232.100.20/30 | 10.232.100.21 – 10.232.100.22 | 10.232.100.23 |
| 7 | 10.232.100.24/30 | 10.232.100.25 – 10.232.100.26 | 10.232.100.27 |
| 8 | 10.232.100.28/30 | 10.232.100.29 – 10.232.100.30 | 10.232.100.31 |
| 9 | 10.232.100.32/30 | 10.232.100.33 – 10.232.100.34 | 10.232.100.35 |
| 10 | 10.232.100.36/30 | 10.232.100.37 – 10.232.100.38 | 10.232.100.39 |
| 11 | 10.232.100.40/30 | 10.232.100.41 – 10.232.100.42 | 10.232.100.43 |
| 12 | 10.232.100.44/30 | 10.232.100.45 – 10.232.100.46 | 10.232.100.47 |
| 13 | 10.232.100.48/30 | 10.232.100.49 – 10.232.100.50 | 10.232.100.51 |
| 14 | 10.232.100.52/30 | 10.232.100.53 – 10.232.100.54 | 10.232.100.55 |
| 15 | 10.232.100.56/30 | 10.232.100.57 – 10.232.100.58 | 10.232.100.59 |
| 16 | 10.232.100.60/30 | 10.232.100.61 – 10.232.100.62 | 10.232.100.63 |
| 17 | 10.232.100.64/30 | 10.232.100.65 – 10.232.100.66 | 10.232.100.67 |
| 18 | 10.232.100.68/30 | 10.232.100.69 – 10.232.100.70 | 10.232.100.71 |
| 19 | 10.232.100.72/30 | 10.232.100.73 – 10.232.100.74 | 10.232.100.75 |
| 20 | 10.232.100.76/30 | 10.232.100.77 – 10.232.100.78 | 10.232.100.79 |
| 21 | 10.232.100.80/30 | 10.232.100.81 – 10.232.100.82 | 10.232.100.83 |
| 22 | 10.232.100.84/30 | 10.232.100.85 – 10.232.100.86 | 10.232.100.87 |
| 23 | 10.232.100.88/30 | 10.232.100.89 – 10.232.100.90 | 10.232.100.91 |
| 24 | 10.232.100.92/30 | 10.232.100.93 – 10.232.100.94 | 10.232.100.95 |
| 25 | 10.232.100.96/30 | 10.232.100.97 – 10.232.100.98 | 10.232.100.99 |
| 26 | 10.232.100.100/30 | 10.232.100.101 – 10.232.100.102 | 10.232.100.103 |
| 27 | 10.232.100.104/30 | 10.232.100.105 – 10.232.100.106 | 10.232.100.107 |
| 28 | 10.232.100.108/30 | 10.232.100.109 – 10.232.100.110 | 10.232.100.111 |
| 29 | 10.232.100.112/30 | 10.232.100.113 – 10.232.100.114 | 10.232.100.115 |
| 30 | 10.232.100.116/30 | 10.232.100.117 – 10.232.100.118 | 10.232.100.119 |
| 31 | 10.232.100.120/30 | 10.232.100.121 – 10.232.100.122 | 10.232.100.123 |
| 32 | 10.232.100.124/30 | 10.232.100.125 – 10.232.100.126 | 10.232.100.127 |
| 33 | 10.232.100.128/30 | 10.232.100.129 – 10.232.100.130 | 10.232.100.131 |
| 34 | 10.232.100.132/30 | 10.232.100.133 – 10.232.100.134 | 10.232.100.135 |
| 35 | 10.232.100.136/30 | 10.232.100.137 – 10.232.100.138 | 10.232.100.139 |
| 36 | 10.232.100.140/30 | 10.232.100.141 – 10.232.100.142 | 10.232.100.143 |
| 37 | 10.232.100.144/30 | 10.232.100.145 – 10.232.100.146 | 10.232.100.147 |
| 38 | 10.232.100.148/30 | 10.232.100.149 – 10.232.100.150 | 10.232.100.151 |
| 39 | 10.232.100.152/30 | 10.232.100.153 – 10.232.100.154 | 10.232.100.155 |
| 40 | 10.232.100.156/30 | 10.232.100.157 – 10.232.100.158 | 10.232.100.159 |
| 41 | 10.232.100.160/30 | 10.232.100.161 – 10.232.100.162 | 10.232.100.163 |
| 42 | 10.232.100.164/30 | 10.232.100.165 – 10.232.100.166 | 10.232.100.167 |
| 43 | 10.232.100.168/30 | 10.232.100.169 – 10.232.100.170 | 10.232.100.171 |
| 44 | 10.232.100.172/30 | 10.232.100.173 – 10.232.100.174 | 10.232.100.175 |
| 45 | 10.232.100.176/30 | 10.232.100.177 – 10.232.100.178 | 10.232.100.179 |
| 46 | 10.232.100.180/30 | 10.232.100.181 – 10.232.100.182 | 10.232.100.183 |
| 47 | 10.232.100.184/30 | 10.232.100.185 – 10.232.100.186 | 10.232.100.187 |
| 48 | 10.232.100.188/30 | 10.232.100.189 – 10.232.100.190 | 10.232.100.191 |
| 49 | 10.232.100.192/30 | 10.232.100.193 – 10.232.100.194 | 10.232.100.195 |
| 50 | 10.232.100.196/30 | 10.232.100.197 – 10.232.100.198 | 10.232.100.199 |
| 51 | 10.232.100.200/30 | 10.232.100.201 – 10.232.100.202 | 10.232.100.203 |
| 52 | 10.232.100.204/30 | 10.232.100.205 – 10.232.100.206 | 10.232.100.207 |
| 53 | 10.232.100.208/30 | 10.232.100.209 – 10.232.100.210 | 10.232.100.211 |
| 54 | 10.232.100.212/30 | 10.232.100.213 – 10.232.100.214 | 10.232.100.215 |
| 55 | 10.232.100.216/30 | 10.232.100.217 – 10.232.100.218 | 10.232.100.219 |
| 56 | 10.232.100.220/30 | 10.232.100.221 – 10.232.100.222 | 10.232.100.223 |
| 57 | 10.232.100.224/30 | 10.232.100.225 – 10.232.100.226 | 10.232.100.227 |
| 58 | 10.232.100.228/30 | 10.232.100.229 – 10.232.100.230 | 10.232.100.231 |
| 59 | 10.232.100.232/30 | 10.232.100.233 – 10.232.100.234 | 10.232.100.235 |
| 60 | 10.232.100.236/30 | 10.232.100.237 – 10.232.100.238 | 10.232.100.239 |
| 61 | 10.232.100.240/30 | 10.232.100.241 – 10.232.100.242 | 10.232.100.243 |
| 62 | 10.232.100.244/30 | 10.232.100.245 – 10.232.100.246 | 10.232.100.247 |
| 63 | 10.232.100.248/30 | 10.232.100.249 – 10.232.100.250 | 10.232.100.251 |
| 64 | 10.232.100.252/30 | 10.232.100.253 – 10.232.100.254 | 10.232.100.255 |
| 65 | 10.232.101.0/30 | 10.232.101.1 – 10.232.101.2 | 10.232.101.3 |
| 66 | 10.232.101.4/30 | 10.232.101.5 – 10.232.101.6 | 10.232.101.7 |
| 67 | 10.232.101.8/30 | 10.232.101.9 – 10.232.101.10 | 10.232.101.11 |
| 68 | 10.232.101.12/30 | 10.232.101.13 – 10.232.101.14 | 10.232.101.15 |
| 69 | 10.232.101.16/30 | 10.232.101.17 – 10.232.101.18 | 10.232.101.19 |
| 70 | 10.232.101.20/30 | 10.232.101.21 – 10.232.101.22 | 10.232.101.23 |
| 71 | 10.232.101.24/30 | 10.232.101.25 – 10.232.101.26 | 10.232.101.27 |
| 72 | 10.232.101.28/30 | 10.232.101.29 – 10.232.101.30 | 10.232.101.31 |
| 73 | 10.232.101.32/30 | 10.232.101.33 – 10.232.101.34 | 10.232.101.35 |
| 74 | 10.232.101.36/30 | 10.232.101.37 – 10.232.101.38 | 10.232.101.39 |
| 75 | 10.232.101.40/30 | 10.232.101.41 – 10.232.101.42 | 10.232.101.43 |
| 76 | 10.232.101.44/30 | 10.232.101.45 – 10.232.101.46 | 10.232.101.47 |
| 77 | 10.232.101.48/30 | 10.232.101.49 – 10.232.101.50 | 10.232.101.51 |
| 78 | 10.232.101.52/30 | 10.232.101.53 – 10.232.101.54 | 10.232.101.55 |
| 79 | 10.232.101.56/30 | 10.232.101.57 – 10.232.101.58 | 10.232.101.59 |
| 80 | 10.232.101.60/30 | 10.232.101.61 – 10.232.101.62 | 10.232.101.63 |
| 81 | 10.232.101.64/30 | 10.232.101.65 – 10.232.101.66 | 10.232.101.67 |
| 82 | 10.232.101.68/30 | 10.232.101.69 – 10.232.101.70 | 10.232.101.71 |
| 83 | 10.232.101.72/30 | 10.232.101.73 – 10.232.101.74 | 10.232.101.75 |
| 84 | 10.232.101.76/30 | 10.232.101.77 – 10.232.101.78 | 10.232.101.79 |
| 85 | 10.232.101.80/30 | 10.232.101.81 – 10.232.101.82 | 10.232.101.83 |
| 86 | 10.232.101.84/30 | 10.232.101.85 – 10.232.101.86 | 10.232.101.87 |
| 87 | 10.232.101.88/30 | 10.232.101.89 – 10.232.101.90 | 10.232.101.91 |
| 88 | 10.232.101.92/30 | 10.232.101.93 – 10.232.101.94 | 10.232.101.95 |
| 89 | 10.232.101.96/30 | 10.232.101.97 – 10.232.101.98 | 10.232.101.99 |
| 90 | 10.232.101.100/30 | 10.232.101.101 – 10.232.101.102 | 10.232.101.103 |
| 91 | 10.232.101.104/30 | 10.232.101.105 – 10.232.101.106 | 10.232.101.107 |
| 92 | 10.232.101.108/30 | 10.232.101.109 – 10.232.101.110 | 10.232.101.111 |
| 93 | 10.232.101.112/30 | 10.232.101.113 – 10.232.101.114 | 10.232.101.115 |
| 94 | 10.232.101.116/30 | 10.232.101.117 – 10.232.101.118 | 10.232.101.119 |
| 95 | 10.232.101.120/30 | 10.232.101.121 – 10.232.101.122 | 10.232.101.123 |
| 96 | 10.232.101.124/30 | 10.232.101.125 – 10.232.101.126 | 10.232.101.127 |
| 97 | 10.232.101.128/30 | 10.232.101.129 – 10.232.101.130 | 10.232.101.131 |
| 98 | 10.232.101.132/30 | 10.232.101.133 – 10.232.101.134 | 10.232.101.135 |
| 99 | 10.232.101.136/30 | 10.232.101.137 – 10.232.101.138 | 10.232.101.139 |
| 100 | 10.232.101.140/30 | 10.232.101.141 – 10.232.101.142 | 10.232.101.143 |
| 101 | 10.232.101.144/30 | 10.232.101.145 – 10.232.101.146 | 10.232.101.147 |
| 102 | 10.232.101.148/30 | 10.232.101.149 – 10.232.101.150 | 10.232.101.151 |
| 103 | 10.232.101.152/30 | 10.232.101.153 – 10.232.101.154 | 10.232.101.155 |
| 104 | 10.232.101.156/30 | 10.232.101.157 – 10.232.101.158 | 10.232.101.159 |
| 105 | 10.232.101.160/30 | 10.232.101.161 – 10.232.101.162 | 10.232.101.163 |
| 106 | 10.232.101.164/30 | 10.232.101.165 – 10.232.101.166 | 10.232.101.167 |
| 107 | 10.232.101.168/30 | 10.232.101.169 – 10.232.101.170 | 10.232.101.171 |
| 108 | 10.232.101.172/30 | 10.232.101.173 – 10.232.101.174 | 10.232.101.175 |
| 109 | 10.232.101.176/30 | 10.232.101.177 – 10.232.101.178 | 10.232.101.179 |
| 110 | 10.232.101.180/30 | 10.232.101.181 – 10.232.101.182 | 10.232.101.183 |
| 111 | 10.232.101.184/30 | 10.232.101.185 – 10.232.101.186 | 10.232.101.187 |
| 112 | 10.232.101.188/30 | 10.232.101.189 – 10.232.101.190 | 10.232.101.191 |
| 113 | 10.232.101.192/30 | 10.232.101.193 – 10.232.101.194 | 10.232.101.195 |
| 114 | 10.232.101.196/30 | 10.232.101.197 – 10.232.101.198 | 10.232.101.199 |
| 115 | 10.232.101.200/30 | 10.232.101.201 – 10.232.101.202 | 10.232.101.203 |
| 116 | 10.232.101.204/30 | 10.232.101.205 – 10.232.101.206 | 10.232.101.207 |
| 117 | 10.232.101.208/30 | 10.232.101.209 – 10.232.101.210 | 10.232.101.211 |
| 118 | 10.232.101.212/30 | 10.232.101.213 – 10.232.101.214 | 10.232.101.215 |
| 119 | 10.232.101.216/30 | 10.232.101.217 – 10.232.101.218 | 10.232.101.219 |
| 120 | 10.232.101.220/30 | 10.232.101.221 – 10.232.101.222 | 10.232.101.223 |
| 121 | 10.232.101.224/30 | 10.232.101.225 – 10.232.101.226 | 10.232.101.227 |
| 122 | 10.232.101.228/30 | 10.232.101.229 – 10.232.101.230 | 10.232.101.231 |
| 123 | 10.232.101.232/30 | 10.232.101.233 – 10.232.101.234 | 10.232.101.235 |
| 124 | 10.232.101.236/30 | 10.232.101.237 – 10.232.101.238 | 10.232.101.239 |
| 125 | 10.232.101.240/30 | 10.232.101.241 – 10.232.101.242 | 10.232.101.243 |
| 126 | 10.232.101.244/30 | 10.232.101.245 – 10.232.101.246 | 10.232.101.247 |
| 127 | 10.232.101.248/30 | 10.232.101.249 – 10.232.101.250 | 10.232.101.251 |
| 128 | 10.232.101.252/30 | 10.232.101.253 – 10.232.101.254 | 10.232.101.255 |
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.