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)10.232.34.0/23
network10.232.34.0/23
broadcast10.232.35.255
first host10.232.34.1
last host10.232.35.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.232.34.0/23
address00001010.11101000.00100010.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.11101000.00100010.00000000
broadcast00001010.11101000.00100011.11111111
green = network part, grey = host part
hex0x0ae82200
decimal182985216
reverse dns0.34.232.10.in-addr.arpa
ipv4-mapped::ffff:ae8:2200
/23 split into /30 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.232.34.0/30 | 10.232.34.1 – 10.232.34.2 | 10.232.34.3 |
| 2 | 10.232.34.4/30 | 10.232.34.5 – 10.232.34.6 | 10.232.34.7 |
| 3 | 10.232.34.8/30 | 10.232.34.9 – 10.232.34.10 | 10.232.34.11 |
| 4 | 10.232.34.12/30 | 10.232.34.13 – 10.232.34.14 | 10.232.34.15 |
| 5 | 10.232.34.16/30 | 10.232.34.17 – 10.232.34.18 | 10.232.34.19 |
| 6 | 10.232.34.20/30 | 10.232.34.21 – 10.232.34.22 | 10.232.34.23 |
| 7 | 10.232.34.24/30 | 10.232.34.25 – 10.232.34.26 | 10.232.34.27 |
| 8 | 10.232.34.28/30 | 10.232.34.29 – 10.232.34.30 | 10.232.34.31 |
| 9 | 10.232.34.32/30 | 10.232.34.33 – 10.232.34.34 | 10.232.34.35 |
| 10 | 10.232.34.36/30 | 10.232.34.37 – 10.232.34.38 | 10.232.34.39 |
| 11 | 10.232.34.40/30 | 10.232.34.41 – 10.232.34.42 | 10.232.34.43 |
| 12 | 10.232.34.44/30 | 10.232.34.45 – 10.232.34.46 | 10.232.34.47 |
| 13 | 10.232.34.48/30 | 10.232.34.49 – 10.232.34.50 | 10.232.34.51 |
| 14 | 10.232.34.52/30 | 10.232.34.53 – 10.232.34.54 | 10.232.34.55 |
| 15 | 10.232.34.56/30 | 10.232.34.57 – 10.232.34.58 | 10.232.34.59 |
| 16 | 10.232.34.60/30 | 10.232.34.61 – 10.232.34.62 | 10.232.34.63 |
| 17 | 10.232.34.64/30 | 10.232.34.65 – 10.232.34.66 | 10.232.34.67 |
| 18 | 10.232.34.68/30 | 10.232.34.69 – 10.232.34.70 | 10.232.34.71 |
| 19 | 10.232.34.72/30 | 10.232.34.73 – 10.232.34.74 | 10.232.34.75 |
| 20 | 10.232.34.76/30 | 10.232.34.77 – 10.232.34.78 | 10.232.34.79 |
| 21 | 10.232.34.80/30 | 10.232.34.81 – 10.232.34.82 | 10.232.34.83 |
| 22 | 10.232.34.84/30 | 10.232.34.85 – 10.232.34.86 | 10.232.34.87 |
| 23 | 10.232.34.88/30 | 10.232.34.89 – 10.232.34.90 | 10.232.34.91 |
| 24 | 10.232.34.92/30 | 10.232.34.93 – 10.232.34.94 | 10.232.34.95 |
| 25 | 10.232.34.96/30 | 10.232.34.97 – 10.232.34.98 | 10.232.34.99 |
| 26 | 10.232.34.100/30 | 10.232.34.101 – 10.232.34.102 | 10.232.34.103 |
| 27 | 10.232.34.104/30 | 10.232.34.105 – 10.232.34.106 | 10.232.34.107 |
| 28 | 10.232.34.108/30 | 10.232.34.109 – 10.232.34.110 | 10.232.34.111 |
| 29 | 10.232.34.112/30 | 10.232.34.113 – 10.232.34.114 | 10.232.34.115 |
| 30 | 10.232.34.116/30 | 10.232.34.117 – 10.232.34.118 | 10.232.34.119 |
| 31 | 10.232.34.120/30 | 10.232.34.121 – 10.232.34.122 | 10.232.34.123 |
| 32 | 10.232.34.124/30 | 10.232.34.125 – 10.232.34.126 | 10.232.34.127 |
| 33 | 10.232.34.128/30 | 10.232.34.129 – 10.232.34.130 | 10.232.34.131 |
| 34 | 10.232.34.132/30 | 10.232.34.133 – 10.232.34.134 | 10.232.34.135 |
| 35 | 10.232.34.136/30 | 10.232.34.137 – 10.232.34.138 | 10.232.34.139 |
| 36 | 10.232.34.140/30 | 10.232.34.141 – 10.232.34.142 | 10.232.34.143 |
| 37 | 10.232.34.144/30 | 10.232.34.145 – 10.232.34.146 | 10.232.34.147 |
| 38 | 10.232.34.148/30 | 10.232.34.149 – 10.232.34.150 | 10.232.34.151 |
| 39 | 10.232.34.152/30 | 10.232.34.153 – 10.232.34.154 | 10.232.34.155 |
| 40 | 10.232.34.156/30 | 10.232.34.157 – 10.232.34.158 | 10.232.34.159 |
| 41 | 10.232.34.160/30 | 10.232.34.161 – 10.232.34.162 | 10.232.34.163 |
| 42 | 10.232.34.164/30 | 10.232.34.165 – 10.232.34.166 | 10.232.34.167 |
| 43 | 10.232.34.168/30 | 10.232.34.169 – 10.232.34.170 | 10.232.34.171 |
| 44 | 10.232.34.172/30 | 10.232.34.173 – 10.232.34.174 | 10.232.34.175 |
| 45 | 10.232.34.176/30 | 10.232.34.177 – 10.232.34.178 | 10.232.34.179 |
| 46 | 10.232.34.180/30 | 10.232.34.181 – 10.232.34.182 | 10.232.34.183 |
| 47 | 10.232.34.184/30 | 10.232.34.185 – 10.232.34.186 | 10.232.34.187 |
| 48 | 10.232.34.188/30 | 10.232.34.189 – 10.232.34.190 | 10.232.34.191 |
| 49 | 10.232.34.192/30 | 10.232.34.193 – 10.232.34.194 | 10.232.34.195 |
| 50 | 10.232.34.196/30 | 10.232.34.197 – 10.232.34.198 | 10.232.34.199 |
| 51 | 10.232.34.200/30 | 10.232.34.201 – 10.232.34.202 | 10.232.34.203 |
| 52 | 10.232.34.204/30 | 10.232.34.205 – 10.232.34.206 | 10.232.34.207 |
| 53 | 10.232.34.208/30 | 10.232.34.209 – 10.232.34.210 | 10.232.34.211 |
| 54 | 10.232.34.212/30 | 10.232.34.213 – 10.232.34.214 | 10.232.34.215 |
| 55 | 10.232.34.216/30 | 10.232.34.217 – 10.232.34.218 | 10.232.34.219 |
| 56 | 10.232.34.220/30 | 10.232.34.221 – 10.232.34.222 | 10.232.34.223 |
| 57 | 10.232.34.224/30 | 10.232.34.225 – 10.232.34.226 | 10.232.34.227 |
| 58 | 10.232.34.228/30 | 10.232.34.229 – 10.232.34.230 | 10.232.34.231 |
| 59 | 10.232.34.232/30 | 10.232.34.233 – 10.232.34.234 | 10.232.34.235 |
| 60 | 10.232.34.236/30 | 10.232.34.237 – 10.232.34.238 | 10.232.34.239 |
| 61 | 10.232.34.240/30 | 10.232.34.241 – 10.232.34.242 | 10.232.34.243 |
| 62 | 10.232.34.244/30 | 10.232.34.245 – 10.232.34.246 | 10.232.34.247 |
| 63 | 10.232.34.248/30 | 10.232.34.249 – 10.232.34.250 | 10.232.34.251 |
| 64 | 10.232.34.252/30 | 10.232.34.253 – 10.232.34.254 | 10.232.34.255 |
| 65 | 10.232.35.0/30 | 10.232.35.1 – 10.232.35.2 | 10.232.35.3 |
| 66 | 10.232.35.4/30 | 10.232.35.5 – 10.232.35.6 | 10.232.35.7 |
| 67 | 10.232.35.8/30 | 10.232.35.9 – 10.232.35.10 | 10.232.35.11 |
| 68 | 10.232.35.12/30 | 10.232.35.13 – 10.232.35.14 | 10.232.35.15 |
| 69 | 10.232.35.16/30 | 10.232.35.17 – 10.232.35.18 | 10.232.35.19 |
| 70 | 10.232.35.20/30 | 10.232.35.21 – 10.232.35.22 | 10.232.35.23 |
| 71 | 10.232.35.24/30 | 10.232.35.25 – 10.232.35.26 | 10.232.35.27 |
| 72 | 10.232.35.28/30 | 10.232.35.29 – 10.232.35.30 | 10.232.35.31 |
| 73 | 10.232.35.32/30 | 10.232.35.33 – 10.232.35.34 | 10.232.35.35 |
| 74 | 10.232.35.36/30 | 10.232.35.37 – 10.232.35.38 | 10.232.35.39 |
| 75 | 10.232.35.40/30 | 10.232.35.41 – 10.232.35.42 | 10.232.35.43 |
| 76 | 10.232.35.44/30 | 10.232.35.45 – 10.232.35.46 | 10.232.35.47 |
| 77 | 10.232.35.48/30 | 10.232.35.49 – 10.232.35.50 | 10.232.35.51 |
| 78 | 10.232.35.52/30 | 10.232.35.53 – 10.232.35.54 | 10.232.35.55 |
| 79 | 10.232.35.56/30 | 10.232.35.57 – 10.232.35.58 | 10.232.35.59 |
| 80 | 10.232.35.60/30 | 10.232.35.61 – 10.232.35.62 | 10.232.35.63 |
| 81 | 10.232.35.64/30 | 10.232.35.65 – 10.232.35.66 | 10.232.35.67 |
| 82 | 10.232.35.68/30 | 10.232.35.69 – 10.232.35.70 | 10.232.35.71 |
| 83 | 10.232.35.72/30 | 10.232.35.73 – 10.232.35.74 | 10.232.35.75 |
| 84 | 10.232.35.76/30 | 10.232.35.77 – 10.232.35.78 | 10.232.35.79 |
| 85 | 10.232.35.80/30 | 10.232.35.81 – 10.232.35.82 | 10.232.35.83 |
| 86 | 10.232.35.84/30 | 10.232.35.85 – 10.232.35.86 | 10.232.35.87 |
| 87 | 10.232.35.88/30 | 10.232.35.89 – 10.232.35.90 | 10.232.35.91 |
| 88 | 10.232.35.92/30 | 10.232.35.93 – 10.232.35.94 | 10.232.35.95 |
| 89 | 10.232.35.96/30 | 10.232.35.97 – 10.232.35.98 | 10.232.35.99 |
| 90 | 10.232.35.100/30 | 10.232.35.101 – 10.232.35.102 | 10.232.35.103 |
| 91 | 10.232.35.104/30 | 10.232.35.105 – 10.232.35.106 | 10.232.35.107 |
| 92 | 10.232.35.108/30 | 10.232.35.109 – 10.232.35.110 | 10.232.35.111 |
| 93 | 10.232.35.112/30 | 10.232.35.113 – 10.232.35.114 | 10.232.35.115 |
| 94 | 10.232.35.116/30 | 10.232.35.117 – 10.232.35.118 | 10.232.35.119 |
| 95 | 10.232.35.120/30 | 10.232.35.121 – 10.232.35.122 | 10.232.35.123 |
| 96 | 10.232.35.124/30 | 10.232.35.125 – 10.232.35.126 | 10.232.35.127 |
| 97 | 10.232.35.128/30 | 10.232.35.129 – 10.232.35.130 | 10.232.35.131 |
| 98 | 10.232.35.132/30 | 10.232.35.133 – 10.232.35.134 | 10.232.35.135 |
| 99 | 10.232.35.136/30 | 10.232.35.137 – 10.232.35.138 | 10.232.35.139 |
| 100 | 10.232.35.140/30 | 10.232.35.141 – 10.232.35.142 | 10.232.35.143 |
| 101 | 10.232.35.144/30 | 10.232.35.145 – 10.232.35.146 | 10.232.35.147 |
| 102 | 10.232.35.148/30 | 10.232.35.149 – 10.232.35.150 | 10.232.35.151 |
| 103 | 10.232.35.152/30 | 10.232.35.153 – 10.232.35.154 | 10.232.35.155 |
| 104 | 10.232.35.156/30 | 10.232.35.157 – 10.232.35.158 | 10.232.35.159 |
| 105 | 10.232.35.160/30 | 10.232.35.161 – 10.232.35.162 | 10.232.35.163 |
| 106 | 10.232.35.164/30 | 10.232.35.165 – 10.232.35.166 | 10.232.35.167 |
| 107 | 10.232.35.168/30 | 10.232.35.169 – 10.232.35.170 | 10.232.35.171 |
| 108 | 10.232.35.172/30 | 10.232.35.173 – 10.232.35.174 | 10.232.35.175 |
| 109 | 10.232.35.176/30 | 10.232.35.177 – 10.232.35.178 | 10.232.35.179 |
| 110 | 10.232.35.180/30 | 10.232.35.181 – 10.232.35.182 | 10.232.35.183 |
| 111 | 10.232.35.184/30 | 10.232.35.185 – 10.232.35.186 | 10.232.35.187 |
| 112 | 10.232.35.188/30 | 10.232.35.189 – 10.232.35.190 | 10.232.35.191 |
| 113 | 10.232.35.192/30 | 10.232.35.193 – 10.232.35.194 | 10.232.35.195 |
| 114 | 10.232.35.196/30 | 10.232.35.197 – 10.232.35.198 | 10.232.35.199 |
| 115 | 10.232.35.200/30 | 10.232.35.201 – 10.232.35.202 | 10.232.35.203 |
| 116 | 10.232.35.204/30 | 10.232.35.205 – 10.232.35.206 | 10.232.35.207 |
| 117 | 10.232.35.208/30 | 10.232.35.209 – 10.232.35.210 | 10.232.35.211 |
| 118 | 10.232.35.212/30 | 10.232.35.213 – 10.232.35.214 | 10.232.35.215 |
| 119 | 10.232.35.216/30 | 10.232.35.217 – 10.232.35.218 | 10.232.35.219 |
| 120 | 10.232.35.220/30 | 10.232.35.221 – 10.232.35.222 | 10.232.35.223 |
| 121 | 10.232.35.224/30 | 10.232.35.225 – 10.232.35.226 | 10.232.35.227 |
| 122 | 10.232.35.228/30 | 10.232.35.229 – 10.232.35.230 | 10.232.35.231 |
| 123 | 10.232.35.232/30 | 10.232.35.233 – 10.232.35.234 | 10.232.35.235 |
| 124 | 10.232.35.236/30 | 10.232.35.237 – 10.232.35.238 | 10.232.35.239 |
| 125 | 10.232.35.240/30 | 10.232.35.241 – 10.232.35.242 | 10.232.35.243 |
| 126 | 10.232.35.244/30 | 10.232.35.245 – 10.232.35.246 | 10.232.35.247 |
| 127 | 10.232.35.248/30 | 10.232.35.249 – 10.232.35.250 | 10.232.35.251 |
| 128 | 10.232.35.252/30 | 10.232.35.253 – 10.232.35.254 | 10.232.35.255 |
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.