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)10.232.28.0/23
network10.232.28.0/23
broadcast10.232.29.255
first host10.232.28.1
last host10.232.29.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.232.28.0/23
address00001010.11101000.00011100.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.11101000.00011100.00000000
broadcast00001010.11101000.00011101.11111111
green = network part, grey = host part
hex0x0ae81c00
decimal182983680
reverse dns0.28.232.10.in-addr.arpa
ipv4-mapped::ffff:ae8:1c00
/23 split into /30 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.232.28.0/30 | 10.232.28.1 – 10.232.28.2 | 10.232.28.3 |
| 2 | 10.232.28.4/30 | 10.232.28.5 – 10.232.28.6 | 10.232.28.7 |
| 3 | 10.232.28.8/30 | 10.232.28.9 – 10.232.28.10 | 10.232.28.11 |
| 4 | 10.232.28.12/30 | 10.232.28.13 – 10.232.28.14 | 10.232.28.15 |
| 5 | 10.232.28.16/30 | 10.232.28.17 – 10.232.28.18 | 10.232.28.19 |
| 6 | 10.232.28.20/30 | 10.232.28.21 – 10.232.28.22 | 10.232.28.23 |
| 7 | 10.232.28.24/30 | 10.232.28.25 – 10.232.28.26 | 10.232.28.27 |
| 8 | 10.232.28.28/30 | 10.232.28.29 – 10.232.28.30 | 10.232.28.31 |
| 9 | 10.232.28.32/30 | 10.232.28.33 – 10.232.28.34 | 10.232.28.35 |
| 10 | 10.232.28.36/30 | 10.232.28.37 – 10.232.28.38 | 10.232.28.39 |
| 11 | 10.232.28.40/30 | 10.232.28.41 – 10.232.28.42 | 10.232.28.43 |
| 12 | 10.232.28.44/30 | 10.232.28.45 – 10.232.28.46 | 10.232.28.47 |
| 13 | 10.232.28.48/30 | 10.232.28.49 – 10.232.28.50 | 10.232.28.51 |
| 14 | 10.232.28.52/30 | 10.232.28.53 – 10.232.28.54 | 10.232.28.55 |
| 15 | 10.232.28.56/30 | 10.232.28.57 – 10.232.28.58 | 10.232.28.59 |
| 16 | 10.232.28.60/30 | 10.232.28.61 – 10.232.28.62 | 10.232.28.63 |
| 17 | 10.232.28.64/30 | 10.232.28.65 – 10.232.28.66 | 10.232.28.67 |
| 18 | 10.232.28.68/30 | 10.232.28.69 – 10.232.28.70 | 10.232.28.71 |
| 19 | 10.232.28.72/30 | 10.232.28.73 – 10.232.28.74 | 10.232.28.75 |
| 20 | 10.232.28.76/30 | 10.232.28.77 – 10.232.28.78 | 10.232.28.79 |
| 21 | 10.232.28.80/30 | 10.232.28.81 – 10.232.28.82 | 10.232.28.83 |
| 22 | 10.232.28.84/30 | 10.232.28.85 – 10.232.28.86 | 10.232.28.87 |
| 23 | 10.232.28.88/30 | 10.232.28.89 – 10.232.28.90 | 10.232.28.91 |
| 24 | 10.232.28.92/30 | 10.232.28.93 – 10.232.28.94 | 10.232.28.95 |
| 25 | 10.232.28.96/30 | 10.232.28.97 – 10.232.28.98 | 10.232.28.99 |
| 26 | 10.232.28.100/30 | 10.232.28.101 – 10.232.28.102 | 10.232.28.103 |
| 27 | 10.232.28.104/30 | 10.232.28.105 – 10.232.28.106 | 10.232.28.107 |
| 28 | 10.232.28.108/30 | 10.232.28.109 – 10.232.28.110 | 10.232.28.111 |
| 29 | 10.232.28.112/30 | 10.232.28.113 – 10.232.28.114 | 10.232.28.115 |
| 30 | 10.232.28.116/30 | 10.232.28.117 – 10.232.28.118 | 10.232.28.119 |
| 31 | 10.232.28.120/30 | 10.232.28.121 – 10.232.28.122 | 10.232.28.123 |
| 32 | 10.232.28.124/30 | 10.232.28.125 – 10.232.28.126 | 10.232.28.127 |
| 33 | 10.232.28.128/30 | 10.232.28.129 – 10.232.28.130 | 10.232.28.131 |
| 34 | 10.232.28.132/30 | 10.232.28.133 – 10.232.28.134 | 10.232.28.135 |
| 35 | 10.232.28.136/30 | 10.232.28.137 – 10.232.28.138 | 10.232.28.139 |
| 36 | 10.232.28.140/30 | 10.232.28.141 – 10.232.28.142 | 10.232.28.143 |
| 37 | 10.232.28.144/30 | 10.232.28.145 – 10.232.28.146 | 10.232.28.147 |
| 38 | 10.232.28.148/30 | 10.232.28.149 – 10.232.28.150 | 10.232.28.151 |
| 39 | 10.232.28.152/30 | 10.232.28.153 – 10.232.28.154 | 10.232.28.155 |
| 40 | 10.232.28.156/30 | 10.232.28.157 – 10.232.28.158 | 10.232.28.159 |
| 41 | 10.232.28.160/30 | 10.232.28.161 – 10.232.28.162 | 10.232.28.163 |
| 42 | 10.232.28.164/30 | 10.232.28.165 – 10.232.28.166 | 10.232.28.167 |
| 43 | 10.232.28.168/30 | 10.232.28.169 – 10.232.28.170 | 10.232.28.171 |
| 44 | 10.232.28.172/30 | 10.232.28.173 – 10.232.28.174 | 10.232.28.175 |
| 45 | 10.232.28.176/30 | 10.232.28.177 – 10.232.28.178 | 10.232.28.179 |
| 46 | 10.232.28.180/30 | 10.232.28.181 – 10.232.28.182 | 10.232.28.183 |
| 47 | 10.232.28.184/30 | 10.232.28.185 – 10.232.28.186 | 10.232.28.187 |
| 48 | 10.232.28.188/30 | 10.232.28.189 – 10.232.28.190 | 10.232.28.191 |
| 49 | 10.232.28.192/30 | 10.232.28.193 – 10.232.28.194 | 10.232.28.195 |
| 50 | 10.232.28.196/30 | 10.232.28.197 – 10.232.28.198 | 10.232.28.199 |
| 51 | 10.232.28.200/30 | 10.232.28.201 – 10.232.28.202 | 10.232.28.203 |
| 52 | 10.232.28.204/30 | 10.232.28.205 – 10.232.28.206 | 10.232.28.207 |
| 53 | 10.232.28.208/30 | 10.232.28.209 – 10.232.28.210 | 10.232.28.211 |
| 54 | 10.232.28.212/30 | 10.232.28.213 – 10.232.28.214 | 10.232.28.215 |
| 55 | 10.232.28.216/30 | 10.232.28.217 – 10.232.28.218 | 10.232.28.219 |
| 56 | 10.232.28.220/30 | 10.232.28.221 – 10.232.28.222 | 10.232.28.223 |
| 57 | 10.232.28.224/30 | 10.232.28.225 – 10.232.28.226 | 10.232.28.227 |
| 58 | 10.232.28.228/30 | 10.232.28.229 – 10.232.28.230 | 10.232.28.231 |
| 59 | 10.232.28.232/30 | 10.232.28.233 – 10.232.28.234 | 10.232.28.235 |
| 60 | 10.232.28.236/30 | 10.232.28.237 – 10.232.28.238 | 10.232.28.239 |
| 61 | 10.232.28.240/30 | 10.232.28.241 – 10.232.28.242 | 10.232.28.243 |
| 62 | 10.232.28.244/30 | 10.232.28.245 – 10.232.28.246 | 10.232.28.247 |
| 63 | 10.232.28.248/30 | 10.232.28.249 – 10.232.28.250 | 10.232.28.251 |
| 64 | 10.232.28.252/30 | 10.232.28.253 – 10.232.28.254 | 10.232.28.255 |
| 65 | 10.232.29.0/30 | 10.232.29.1 – 10.232.29.2 | 10.232.29.3 |
| 66 | 10.232.29.4/30 | 10.232.29.5 – 10.232.29.6 | 10.232.29.7 |
| 67 | 10.232.29.8/30 | 10.232.29.9 – 10.232.29.10 | 10.232.29.11 |
| 68 | 10.232.29.12/30 | 10.232.29.13 – 10.232.29.14 | 10.232.29.15 |
| 69 | 10.232.29.16/30 | 10.232.29.17 – 10.232.29.18 | 10.232.29.19 |
| 70 | 10.232.29.20/30 | 10.232.29.21 – 10.232.29.22 | 10.232.29.23 |
| 71 | 10.232.29.24/30 | 10.232.29.25 – 10.232.29.26 | 10.232.29.27 |
| 72 | 10.232.29.28/30 | 10.232.29.29 – 10.232.29.30 | 10.232.29.31 |
| 73 | 10.232.29.32/30 | 10.232.29.33 – 10.232.29.34 | 10.232.29.35 |
| 74 | 10.232.29.36/30 | 10.232.29.37 – 10.232.29.38 | 10.232.29.39 |
| 75 | 10.232.29.40/30 | 10.232.29.41 – 10.232.29.42 | 10.232.29.43 |
| 76 | 10.232.29.44/30 | 10.232.29.45 – 10.232.29.46 | 10.232.29.47 |
| 77 | 10.232.29.48/30 | 10.232.29.49 – 10.232.29.50 | 10.232.29.51 |
| 78 | 10.232.29.52/30 | 10.232.29.53 – 10.232.29.54 | 10.232.29.55 |
| 79 | 10.232.29.56/30 | 10.232.29.57 – 10.232.29.58 | 10.232.29.59 |
| 80 | 10.232.29.60/30 | 10.232.29.61 – 10.232.29.62 | 10.232.29.63 |
| 81 | 10.232.29.64/30 | 10.232.29.65 – 10.232.29.66 | 10.232.29.67 |
| 82 | 10.232.29.68/30 | 10.232.29.69 – 10.232.29.70 | 10.232.29.71 |
| 83 | 10.232.29.72/30 | 10.232.29.73 – 10.232.29.74 | 10.232.29.75 |
| 84 | 10.232.29.76/30 | 10.232.29.77 – 10.232.29.78 | 10.232.29.79 |
| 85 | 10.232.29.80/30 | 10.232.29.81 – 10.232.29.82 | 10.232.29.83 |
| 86 | 10.232.29.84/30 | 10.232.29.85 – 10.232.29.86 | 10.232.29.87 |
| 87 | 10.232.29.88/30 | 10.232.29.89 – 10.232.29.90 | 10.232.29.91 |
| 88 | 10.232.29.92/30 | 10.232.29.93 – 10.232.29.94 | 10.232.29.95 |
| 89 | 10.232.29.96/30 | 10.232.29.97 – 10.232.29.98 | 10.232.29.99 |
| 90 | 10.232.29.100/30 | 10.232.29.101 – 10.232.29.102 | 10.232.29.103 |
| 91 | 10.232.29.104/30 | 10.232.29.105 – 10.232.29.106 | 10.232.29.107 |
| 92 | 10.232.29.108/30 | 10.232.29.109 – 10.232.29.110 | 10.232.29.111 |
| 93 | 10.232.29.112/30 | 10.232.29.113 – 10.232.29.114 | 10.232.29.115 |
| 94 | 10.232.29.116/30 | 10.232.29.117 – 10.232.29.118 | 10.232.29.119 |
| 95 | 10.232.29.120/30 | 10.232.29.121 – 10.232.29.122 | 10.232.29.123 |
| 96 | 10.232.29.124/30 | 10.232.29.125 – 10.232.29.126 | 10.232.29.127 |
| 97 | 10.232.29.128/30 | 10.232.29.129 – 10.232.29.130 | 10.232.29.131 |
| 98 | 10.232.29.132/30 | 10.232.29.133 – 10.232.29.134 | 10.232.29.135 |
| 99 | 10.232.29.136/30 | 10.232.29.137 – 10.232.29.138 | 10.232.29.139 |
| 100 | 10.232.29.140/30 | 10.232.29.141 – 10.232.29.142 | 10.232.29.143 |
| 101 | 10.232.29.144/30 | 10.232.29.145 – 10.232.29.146 | 10.232.29.147 |
| 102 | 10.232.29.148/30 | 10.232.29.149 – 10.232.29.150 | 10.232.29.151 |
| 103 | 10.232.29.152/30 | 10.232.29.153 – 10.232.29.154 | 10.232.29.155 |
| 104 | 10.232.29.156/30 | 10.232.29.157 – 10.232.29.158 | 10.232.29.159 |
| 105 | 10.232.29.160/30 | 10.232.29.161 – 10.232.29.162 | 10.232.29.163 |
| 106 | 10.232.29.164/30 | 10.232.29.165 – 10.232.29.166 | 10.232.29.167 |
| 107 | 10.232.29.168/30 | 10.232.29.169 – 10.232.29.170 | 10.232.29.171 |
| 108 | 10.232.29.172/30 | 10.232.29.173 – 10.232.29.174 | 10.232.29.175 |
| 109 | 10.232.29.176/30 | 10.232.29.177 – 10.232.29.178 | 10.232.29.179 |
| 110 | 10.232.29.180/30 | 10.232.29.181 – 10.232.29.182 | 10.232.29.183 |
| 111 | 10.232.29.184/30 | 10.232.29.185 – 10.232.29.186 | 10.232.29.187 |
| 112 | 10.232.29.188/30 | 10.232.29.189 – 10.232.29.190 | 10.232.29.191 |
| 113 | 10.232.29.192/30 | 10.232.29.193 – 10.232.29.194 | 10.232.29.195 |
| 114 | 10.232.29.196/30 | 10.232.29.197 – 10.232.29.198 | 10.232.29.199 |
| 115 | 10.232.29.200/30 | 10.232.29.201 – 10.232.29.202 | 10.232.29.203 |
| 116 | 10.232.29.204/30 | 10.232.29.205 – 10.232.29.206 | 10.232.29.207 |
| 117 | 10.232.29.208/30 | 10.232.29.209 – 10.232.29.210 | 10.232.29.211 |
| 118 | 10.232.29.212/30 | 10.232.29.213 – 10.232.29.214 | 10.232.29.215 |
| 119 | 10.232.29.216/30 | 10.232.29.217 – 10.232.29.218 | 10.232.29.219 |
| 120 | 10.232.29.220/30 | 10.232.29.221 – 10.232.29.222 | 10.232.29.223 |
| 121 | 10.232.29.224/30 | 10.232.29.225 – 10.232.29.226 | 10.232.29.227 |
| 122 | 10.232.29.228/30 | 10.232.29.229 – 10.232.29.230 | 10.232.29.231 |
| 123 | 10.232.29.232/30 | 10.232.29.233 – 10.232.29.234 | 10.232.29.235 |
| 124 | 10.232.29.236/30 | 10.232.29.237 – 10.232.29.238 | 10.232.29.239 |
| 125 | 10.232.29.240/30 | 10.232.29.241 – 10.232.29.242 | 10.232.29.243 |
| 126 | 10.232.29.244/30 | 10.232.29.245 – 10.232.29.246 | 10.232.29.247 |
| 127 | 10.232.29.248/30 | 10.232.29.249 – 10.232.29.250 | 10.232.29.251 |
| 128 | 10.232.29.252/30 | 10.232.29.253 – 10.232.29.254 | 10.232.29.255 |
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.