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)10.232.37.0/24
network10.232.37.0/24
broadcast10.232.37.255
first host10.232.37.1
last host10.232.37.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.232.37.0/24
address00001010.11101000.00100101.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.11101000.00100101.00000000
broadcast00001010.11101000.00100101.11111111
green = network part, grey = host part
hex0x0ae82500
decimal182985984
reverse dns0.37.232.10.in-addr.arpa
ipv4-mapped::ffff:ae8:2500
/24 split into /31 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.232.37.0/31 | 10.232.37.0 – 10.232.37.1 | 10.232.37.1 |
| 2 | 10.232.37.2/31 | 10.232.37.2 – 10.232.37.3 | 10.232.37.3 |
| 3 | 10.232.37.4/31 | 10.232.37.4 – 10.232.37.5 | 10.232.37.5 |
| 4 | 10.232.37.6/31 | 10.232.37.6 – 10.232.37.7 | 10.232.37.7 |
| 5 | 10.232.37.8/31 | 10.232.37.8 – 10.232.37.9 | 10.232.37.9 |
| 6 | 10.232.37.10/31 | 10.232.37.10 – 10.232.37.11 | 10.232.37.11 |
| 7 | 10.232.37.12/31 | 10.232.37.12 – 10.232.37.13 | 10.232.37.13 |
| 8 | 10.232.37.14/31 | 10.232.37.14 – 10.232.37.15 | 10.232.37.15 |
| 9 | 10.232.37.16/31 | 10.232.37.16 – 10.232.37.17 | 10.232.37.17 |
| 10 | 10.232.37.18/31 | 10.232.37.18 – 10.232.37.19 | 10.232.37.19 |
| 11 | 10.232.37.20/31 | 10.232.37.20 – 10.232.37.21 | 10.232.37.21 |
| 12 | 10.232.37.22/31 | 10.232.37.22 – 10.232.37.23 | 10.232.37.23 |
| 13 | 10.232.37.24/31 | 10.232.37.24 – 10.232.37.25 | 10.232.37.25 |
| 14 | 10.232.37.26/31 | 10.232.37.26 – 10.232.37.27 | 10.232.37.27 |
| 15 | 10.232.37.28/31 | 10.232.37.28 – 10.232.37.29 | 10.232.37.29 |
| 16 | 10.232.37.30/31 | 10.232.37.30 – 10.232.37.31 | 10.232.37.31 |
| 17 | 10.232.37.32/31 | 10.232.37.32 – 10.232.37.33 | 10.232.37.33 |
| 18 | 10.232.37.34/31 | 10.232.37.34 – 10.232.37.35 | 10.232.37.35 |
| 19 | 10.232.37.36/31 | 10.232.37.36 – 10.232.37.37 | 10.232.37.37 |
| 20 | 10.232.37.38/31 | 10.232.37.38 – 10.232.37.39 | 10.232.37.39 |
| 21 | 10.232.37.40/31 | 10.232.37.40 – 10.232.37.41 | 10.232.37.41 |
| 22 | 10.232.37.42/31 | 10.232.37.42 – 10.232.37.43 | 10.232.37.43 |
| 23 | 10.232.37.44/31 | 10.232.37.44 – 10.232.37.45 | 10.232.37.45 |
| 24 | 10.232.37.46/31 | 10.232.37.46 – 10.232.37.47 | 10.232.37.47 |
| 25 | 10.232.37.48/31 | 10.232.37.48 – 10.232.37.49 | 10.232.37.49 |
| 26 | 10.232.37.50/31 | 10.232.37.50 – 10.232.37.51 | 10.232.37.51 |
| 27 | 10.232.37.52/31 | 10.232.37.52 – 10.232.37.53 | 10.232.37.53 |
| 28 | 10.232.37.54/31 | 10.232.37.54 – 10.232.37.55 | 10.232.37.55 |
| 29 | 10.232.37.56/31 | 10.232.37.56 – 10.232.37.57 | 10.232.37.57 |
| 30 | 10.232.37.58/31 | 10.232.37.58 – 10.232.37.59 | 10.232.37.59 |
| 31 | 10.232.37.60/31 | 10.232.37.60 – 10.232.37.61 | 10.232.37.61 |
| 32 | 10.232.37.62/31 | 10.232.37.62 – 10.232.37.63 | 10.232.37.63 |
| 33 | 10.232.37.64/31 | 10.232.37.64 – 10.232.37.65 | 10.232.37.65 |
| 34 | 10.232.37.66/31 | 10.232.37.66 – 10.232.37.67 | 10.232.37.67 |
| 35 | 10.232.37.68/31 | 10.232.37.68 – 10.232.37.69 | 10.232.37.69 |
| 36 | 10.232.37.70/31 | 10.232.37.70 – 10.232.37.71 | 10.232.37.71 |
| 37 | 10.232.37.72/31 | 10.232.37.72 – 10.232.37.73 | 10.232.37.73 |
| 38 | 10.232.37.74/31 | 10.232.37.74 – 10.232.37.75 | 10.232.37.75 |
| 39 | 10.232.37.76/31 | 10.232.37.76 – 10.232.37.77 | 10.232.37.77 |
| 40 | 10.232.37.78/31 | 10.232.37.78 – 10.232.37.79 | 10.232.37.79 |
| 41 | 10.232.37.80/31 | 10.232.37.80 – 10.232.37.81 | 10.232.37.81 |
| 42 | 10.232.37.82/31 | 10.232.37.82 – 10.232.37.83 | 10.232.37.83 |
| 43 | 10.232.37.84/31 | 10.232.37.84 – 10.232.37.85 | 10.232.37.85 |
| 44 | 10.232.37.86/31 | 10.232.37.86 – 10.232.37.87 | 10.232.37.87 |
| 45 | 10.232.37.88/31 | 10.232.37.88 – 10.232.37.89 | 10.232.37.89 |
| 46 | 10.232.37.90/31 | 10.232.37.90 – 10.232.37.91 | 10.232.37.91 |
| 47 | 10.232.37.92/31 | 10.232.37.92 – 10.232.37.93 | 10.232.37.93 |
| 48 | 10.232.37.94/31 | 10.232.37.94 – 10.232.37.95 | 10.232.37.95 |
| 49 | 10.232.37.96/31 | 10.232.37.96 – 10.232.37.97 | 10.232.37.97 |
| 50 | 10.232.37.98/31 | 10.232.37.98 – 10.232.37.99 | 10.232.37.99 |
| 51 | 10.232.37.100/31 | 10.232.37.100 – 10.232.37.101 | 10.232.37.101 |
| 52 | 10.232.37.102/31 | 10.232.37.102 – 10.232.37.103 | 10.232.37.103 |
| 53 | 10.232.37.104/31 | 10.232.37.104 – 10.232.37.105 | 10.232.37.105 |
| 54 | 10.232.37.106/31 | 10.232.37.106 – 10.232.37.107 | 10.232.37.107 |
| 55 | 10.232.37.108/31 | 10.232.37.108 – 10.232.37.109 | 10.232.37.109 |
| 56 | 10.232.37.110/31 | 10.232.37.110 – 10.232.37.111 | 10.232.37.111 |
| 57 | 10.232.37.112/31 | 10.232.37.112 – 10.232.37.113 | 10.232.37.113 |
| 58 | 10.232.37.114/31 | 10.232.37.114 – 10.232.37.115 | 10.232.37.115 |
| 59 | 10.232.37.116/31 | 10.232.37.116 – 10.232.37.117 | 10.232.37.117 |
| 60 | 10.232.37.118/31 | 10.232.37.118 – 10.232.37.119 | 10.232.37.119 |
| 61 | 10.232.37.120/31 | 10.232.37.120 – 10.232.37.121 | 10.232.37.121 |
| 62 | 10.232.37.122/31 | 10.232.37.122 – 10.232.37.123 | 10.232.37.123 |
| 63 | 10.232.37.124/31 | 10.232.37.124 – 10.232.37.125 | 10.232.37.125 |
| 64 | 10.232.37.126/31 | 10.232.37.126 – 10.232.37.127 | 10.232.37.127 |
| 65 | 10.232.37.128/31 | 10.232.37.128 – 10.232.37.129 | 10.232.37.129 |
| 66 | 10.232.37.130/31 | 10.232.37.130 – 10.232.37.131 | 10.232.37.131 |
| 67 | 10.232.37.132/31 | 10.232.37.132 – 10.232.37.133 | 10.232.37.133 |
| 68 | 10.232.37.134/31 | 10.232.37.134 – 10.232.37.135 | 10.232.37.135 |
| 69 | 10.232.37.136/31 | 10.232.37.136 – 10.232.37.137 | 10.232.37.137 |
| 70 | 10.232.37.138/31 | 10.232.37.138 – 10.232.37.139 | 10.232.37.139 |
| 71 | 10.232.37.140/31 | 10.232.37.140 – 10.232.37.141 | 10.232.37.141 |
| 72 | 10.232.37.142/31 | 10.232.37.142 – 10.232.37.143 | 10.232.37.143 |
| 73 | 10.232.37.144/31 | 10.232.37.144 – 10.232.37.145 | 10.232.37.145 |
| 74 | 10.232.37.146/31 | 10.232.37.146 – 10.232.37.147 | 10.232.37.147 |
| 75 | 10.232.37.148/31 | 10.232.37.148 – 10.232.37.149 | 10.232.37.149 |
| 76 | 10.232.37.150/31 | 10.232.37.150 – 10.232.37.151 | 10.232.37.151 |
| 77 | 10.232.37.152/31 | 10.232.37.152 – 10.232.37.153 | 10.232.37.153 |
| 78 | 10.232.37.154/31 | 10.232.37.154 – 10.232.37.155 | 10.232.37.155 |
| 79 | 10.232.37.156/31 | 10.232.37.156 – 10.232.37.157 | 10.232.37.157 |
| 80 | 10.232.37.158/31 | 10.232.37.158 – 10.232.37.159 | 10.232.37.159 |
| 81 | 10.232.37.160/31 | 10.232.37.160 – 10.232.37.161 | 10.232.37.161 |
| 82 | 10.232.37.162/31 | 10.232.37.162 – 10.232.37.163 | 10.232.37.163 |
| 83 | 10.232.37.164/31 | 10.232.37.164 – 10.232.37.165 | 10.232.37.165 |
| 84 | 10.232.37.166/31 | 10.232.37.166 – 10.232.37.167 | 10.232.37.167 |
| 85 | 10.232.37.168/31 | 10.232.37.168 – 10.232.37.169 | 10.232.37.169 |
| 86 | 10.232.37.170/31 | 10.232.37.170 – 10.232.37.171 | 10.232.37.171 |
| 87 | 10.232.37.172/31 | 10.232.37.172 – 10.232.37.173 | 10.232.37.173 |
| 88 | 10.232.37.174/31 | 10.232.37.174 – 10.232.37.175 | 10.232.37.175 |
| 89 | 10.232.37.176/31 | 10.232.37.176 – 10.232.37.177 | 10.232.37.177 |
| 90 | 10.232.37.178/31 | 10.232.37.178 – 10.232.37.179 | 10.232.37.179 |
| 91 | 10.232.37.180/31 | 10.232.37.180 – 10.232.37.181 | 10.232.37.181 |
| 92 | 10.232.37.182/31 | 10.232.37.182 – 10.232.37.183 | 10.232.37.183 |
| 93 | 10.232.37.184/31 | 10.232.37.184 – 10.232.37.185 | 10.232.37.185 |
| 94 | 10.232.37.186/31 | 10.232.37.186 – 10.232.37.187 | 10.232.37.187 |
| 95 | 10.232.37.188/31 | 10.232.37.188 – 10.232.37.189 | 10.232.37.189 |
| 96 | 10.232.37.190/31 | 10.232.37.190 – 10.232.37.191 | 10.232.37.191 |
| 97 | 10.232.37.192/31 | 10.232.37.192 – 10.232.37.193 | 10.232.37.193 |
| 98 | 10.232.37.194/31 | 10.232.37.194 – 10.232.37.195 | 10.232.37.195 |
| 99 | 10.232.37.196/31 | 10.232.37.196 – 10.232.37.197 | 10.232.37.197 |
| 100 | 10.232.37.198/31 | 10.232.37.198 – 10.232.37.199 | 10.232.37.199 |
| 101 | 10.232.37.200/31 | 10.232.37.200 – 10.232.37.201 | 10.232.37.201 |
| 102 | 10.232.37.202/31 | 10.232.37.202 – 10.232.37.203 | 10.232.37.203 |
| 103 | 10.232.37.204/31 | 10.232.37.204 – 10.232.37.205 | 10.232.37.205 |
| 104 | 10.232.37.206/31 | 10.232.37.206 – 10.232.37.207 | 10.232.37.207 |
| 105 | 10.232.37.208/31 | 10.232.37.208 – 10.232.37.209 | 10.232.37.209 |
| 106 | 10.232.37.210/31 | 10.232.37.210 – 10.232.37.211 | 10.232.37.211 |
| 107 | 10.232.37.212/31 | 10.232.37.212 – 10.232.37.213 | 10.232.37.213 |
| 108 | 10.232.37.214/31 | 10.232.37.214 – 10.232.37.215 | 10.232.37.215 |
| 109 | 10.232.37.216/31 | 10.232.37.216 – 10.232.37.217 | 10.232.37.217 |
| 110 | 10.232.37.218/31 | 10.232.37.218 – 10.232.37.219 | 10.232.37.219 |
| 111 | 10.232.37.220/31 | 10.232.37.220 – 10.232.37.221 | 10.232.37.221 |
| 112 | 10.232.37.222/31 | 10.232.37.222 – 10.232.37.223 | 10.232.37.223 |
| 113 | 10.232.37.224/31 | 10.232.37.224 – 10.232.37.225 | 10.232.37.225 |
| 114 | 10.232.37.226/31 | 10.232.37.226 – 10.232.37.227 | 10.232.37.227 |
| 115 | 10.232.37.228/31 | 10.232.37.228 – 10.232.37.229 | 10.232.37.229 |
| 116 | 10.232.37.230/31 | 10.232.37.230 – 10.232.37.231 | 10.232.37.231 |
| 117 | 10.232.37.232/31 | 10.232.37.232 – 10.232.37.233 | 10.232.37.233 |
| 118 | 10.232.37.234/31 | 10.232.37.234 – 10.232.37.235 | 10.232.37.235 |
| 119 | 10.232.37.236/31 | 10.232.37.236 – 10.232.37.237 | 10.232.37.237 |
| 120 | 10.232.37.238/31 | 10.232.37.238 – 10.232.37.239 | 10.232.37.239 |
| 121 | 10.232.37.240/31 | 10.232.37.240 – 10.232.37.241 | 10.232.37.241 |
| 122 | 10.232.37.242/31 | 10.232.37.242 – 10.232.37.243 | 10.232.37.243 |
| 123 | 10.232.37.244/31 | 10.232.37.244 – 10.232.37.245 | 10.232.37.245 |
| 124 | 10.232.37.246/31 | 10.232.37.246 – 10.232.37.247 | 10.232.37.247 |
| 125 | 10.232.37.248/31 | 10.232.37.248 – 10.232.37.249 | 10.232.37.249 |
| 126 | 10.232.37.250/31 | 10.232.37.250 – 10.232.37.251 | 10.232.37.251 |
| 127 | 10.232.37.252/31 | 10.232.37.252 – 10.232.37.253 | 10.232.37.253 |
| 128 | 10.232.37.254/31 | 10.232.37.254 – 10.232.37.255 | 10.232.37.255 |
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 /24 |
|---|---|---|---|---|
| /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 | - |
| /24 | 255.255.255.0 | 256 | 254 | 1 |
| /25 | 255.255.255.128 | 128 | 126 | 2 split → |
| /26 | 255.255.255.192 | 64 | 62 | 4 split → |
| /27 | 255.255.255.224 | 32 | 30 | 8 split → |
| /28 | 255.255.255.240 | 16 | 14 | 16 split → |
| /29 | 255.255.255.248 | 8 | 6 | 32 split → |
| /30 | 255.255.255.252 | 4 | 2 | 64 split → |
| /31 | 255.255.255.254 | 2 | 2 | 128 split → |
| /32 | 255.255.255.255 | 1 | 1 | 256 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.