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)10.76.246.0/23
network10.76.246.0/23
broadcast10.76.247.255
first host10.76.246.1
last host10.76.247.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.76.246.0/23
address00001010.01001100.11110110.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.01001100.11110110.00000000
broadcast00001010.01001100.11110111.11111111
green = network part, grey = host part
hex0x0a4cf600
decimal172815872
reverse dns0.246.76.10.in-addr.arpa
ipv4-mapped::ffff:a4c:f600
/23 split into /30 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.76.246.0/30 | 10.76.246.1 – 10.76.246.2 | 10.76.246.3 |
| 2 | 10.76.246.4/30 | 10.76.246.5 – 10.76.246.6 | 10.76.246.7 |
| 3 | 10.76.246.8/30 | 10.76.246.9 – 10.76.246.10 | 10.76.246.11 |
| 4 | 10.76.246.12/30 | 10.76.246.13 – 10.76.246.14 | 10.76.246.15 |
| 5 | 10.76.246.16/30 | 10.76.246.17 – 10.76.246.18 | 10.76.246.19 |
| 6 | 10.76.246.20/30 | 10.76.246.21 – 10.76.246.22 | 10.76.246.23 |
| 7 | 10.76.246.24/30 | 10.76.246.25 – 10.76.246.26 | 10.76.246.27 |
| 8 | 10.76.246.28/30 | 10.76.246.29 – 10.76.246.30 | 10.76.246.31 |
| 9 | 10.76.246.32/30 | 10.76.246.33 – 10.76.246.34 | 10.76.246.35 |
| 10 | 10.76.246.36/30 | 10.76.246.37 – 10.76.246.38 | 10.76.246.39 |
| 11 | 10.76.246.40/30 | 10.76.246.41 – 10.76.246.42 | 10.76.246.43 |
| 12 | 10.76.246.44/30 | 10.76.246.45 – 10.76.246.46 | 10.76.246.47 |
| 13 | 10.76.246.48/30 | 10.76.246.49 – 10.76.246.50 | 10.76.246.51 |
| 14 | 10.76.246.52/30 | 10.76.246.53 – 10.76.246.54 | 10.76.246.55 |
| 15 | 10.76.246.56/30 | 10.76.246.57 – 10.76.246.58 | 10.76.246.59 |
| 16 | 10.76.246.60/30 | 10.76.246.61 – 10.76.246.62 | 10.76.246.63 |
| 17 | 10.76.246.64/30 | 10.76.246.65 – 10.76.246.66 | 10.76.246.67 |
| 18 | 10.76.246.68/30 | 10.76.246.69 – 10.76.246.70 | 10.76.246.71 |
| 19 | 10.76.246.72/30 | 10.76.246.73 – 10.76.246.74 | 10.76.246.75 |
| 20 | 10.76.246.76/30 | 10.76.246.77 – 10.76.246.78 | 10.76.246.79 |
| 21 | 10.76.246.80/30 | 10.76.246.81 – 10.76.246.82 | 10.76.246.83 |
| 22 | 10.76.246.84/30 | 10.76.246.85 – 10.76.246.86 | 10.76.246.87 |
| 23 | 10.76.246.88/30 | 10.76.246.89 – 10.76.246.90 | 10.76.246.91 |
| 24 | 10.76.246.92/30 | 10.76.246.93 – 10.76.246.94 | 10.76.246.95 |
| 25 | 10.76.246.96/30 | 10.76.246.97 – 10.76.246.98 | 10.76.246.99 |
| 26 | 10.76.246.100/30 | 10.76.246.101 – 10.76.246.102 | 10.76.246.103 |
| 27 | 10.76.246.104/30 | 10.76.246.105 – 10.76.246.106 | 10.76.246.107 |
| 28 | 10.76.246.108/30 | 10.76.246.109 – 10.76.246.110 | 10.76.246.111 |
| 29 | 10.76.246.112/30 | 10.76.246.113 – 10.76.246.114 | 10.76.246.115 |
| 30 | 10.76.246.116/30 | 10.76.246.117 – 10.76.246.118 | 10.76.246.119 |
| 31 | 10.76.246.120/30 | 10.76.246.121 – 10.76.246.122 | 10.76.246.123 |
| 32 | 10.76.246.124/30 | 10.76.246.125 – 10.76.246.126 | 10.76.246.127 |
| 33 | 10.76.246.128/30 | 10.76.246.129 – 10.76.246.130 | 10.76.246.131 |
| 34 | 10.76.246.132/30 | 10.76.246.133 – 10.76.246.134 | 10.76.246.135 |
| 35 | 10.76.246.136/30 | 10.76.246.137 – 10.76.246.138 | 10.76.246.139 |
| 36 | 10.76.246.140/30 | 10.76.246.141 – 10.76.246.142 | 10.76.246.143 |
| 37 | 10.76.246.144/30 | 10.76.246.145 – 10.76.246.146 | 10.76.246.147 |
| 38 | 10.76.246.148/30 | 10.76.246.149 – 10.76.246.150 | 10.76.246.151 |
| 39 | 10.76.246.152/30 | 10.76.246.153 – 10.76.246.154 | 10.76.246.155 |
| 40 | 10.76.246.156/30 | 10.76.246.157 – 10.76.246.158 | 10.76.246.159 |
| 41 | 10.76.246.160/30 | 10.76.246.161 – 10.76.246.162 | 10.76.246.163 |
| 42 | 10.76.246.164/30 | 10.76.246.165 – 10.76.246.166 | 10.76.246.167 |
| 43 | 10.76.246.168/30 | 10.76.246.169 – 10.76.246.170 | 10.76.246.171 |
| 44 | 10.76.246.172/30 | 10.76.246.173 – 10.76.246.174 | 10.76.246.175 |
| 45 | 10.76.246.176/30 | 10.76.246.177 – 10.76.246.178 | 10.76.246.179 |
| 46 | 10.76.246.180/30 | 10.76.246.181 – 10.76.246.182 | 10.76.246.183 |
| 47 | 10.76.246.184/30 | 10.76.246.185 – 10.76.246.186 | 10.76.246.187 |
| 48 | 10.76.246.188/30 | 10.76.246.189 – 10.76.246.190 | 10.76.246.191 |
| 49 | 10.76.246.192/30 | 10.76.246.193 – 10.76.246.194 | 10.76.246.195 |
| 50 | 10.76.246.196/30 | 10.76.246.197 – 10.76.246.198 | 10.76.246.199 |
| 51 | 10.76.246.200/30 | 10.76.246.201 – 10.76.246.202 | 10.76.246.203 |
| 52 | 10.76.246.204/30 | 10.76.246.205 – 10.76.246.206 | 10.76.246.207 |
| 53 | 10.76.246.208/30 | 10.76.246.209 – 10.76.246.210 | 10.76.246.211 |
| 54 | 10.76.246.212/30 | 10.76.246.213 – 10.76.246.214 | 10.76.246.215 |
| 55 | 10.76.246.216/30 | 10.76.246.217 – 10.76.246.218 | 10.76.246.219 |
| 56 | 10.76.246.220/30 | 10.76.246.221 – 10.76.246.222 | 10.76.246.223 |
| 57 | 10.76.246.224/30 | 10.76.246.225 – 10.76.246.226 | 10.76.246.227 |
| 58 | 10.76.246.228/30 | 10.76.246.229 – 10.76.246.230 | 10.76.246.231 |
| 59 | 10.76.246.232/30 | 10.76.246.233 – 10.76.246.234 | 10.76.246.235 |
| 60 | 10.76.246.236/30 | 10.76.246.237 – 10.76.246.238 | 10.76.246.239 |
| 61 | 10.76.246.240/30 | 10.76.246.241 – 10.76.246.242 | 10.76.246.243 |
| 62 | 10.76.246.244/30 | 10.76.246.245 – 10.76.246.246 | 10.76.246.247 |
| 63 | 10.76.246.248/30 | 10.76.246.249 – 10.76.246.250 | 10.76.246.251 |
| 64 | 10.76.246.252/30 | 10.76.246.253 – 10.76.246.254 | 10.76.246.255 |
| 65 | 10.76.247.0/30 | 10.76.247.1 – 10.76.247.2 | 10.76.247.3 |
| 66 | 10.76.247.4/30 | 10.76.247.5 – 10.76.247.6 | 10.76.247.7 |
| 67 | 10.76.247.8/30 | 10.76.247.9 – 10.76.247.10 | 10.76.247.11 |
| 68 | 10.76.247.12/30 | 10.76.247.13 – 10.76.247.14 | 10.76.247.15 |
| 69 | 10.76.247.16/30 | 10.76.247.17 – 10.76.247.18 | 10.76.247.19 |
| 70 | 10.76.247.20/30 | 10.76.247.21 – 10.76.247.22 | 10.76.247.23 |
| 71 | 10.76.247.24/30 | 10.76.247.25 – 10.76.247.26 | 10.76.247.27 |
| 72 | 10.76.247.28/30 | 10.76.247.29 – 10.76.247.30 | 10.76.247.31 |
| 73 | 10.76.247.32/30 | 10.76.247.33 – 10.76.247.34 | 10.76.247.35 |
| 74 | 10.76.247.36/30 | 10.76.247.37 – 10.76.247.38 | 10.76.247.39 |
| 75 | 10.76.247.40/30 | 10.76.247.41 – 10.76.247.42 | 10.76.247.43 |
| 76 | 10.76.247.44/30 | 10.76.247.45 – 10.76.247.46 | 10.76.247.47 |
| 77 | 10.76.247.48/30 | 10.76.247.49 – 10.76.247.50 | 10.76.247.51 |
| 78 | 10.76.247.52/30 | 10.76.247.53 – 10.76.247.54 | 10.76.247.55 |
| 79 | 10.76.247.56/30 | 10.76.247.57 – 10.76.247.58 | 10.76.247.59 |
| 80 | 10.76.247.60/30 | 10.76.247.61 – 10.76.247.62 | 10.76.247.63 |
| 81 | 10.76.247.64/30 | 10.76.247.65 – 10.76.247.66 | 10.76.247.67 |
| 82 | 10.76.247.68/30 | 10.76.247.69 – 10.76.247.70 | 10.76.247.71 |
| 83 | 10.76.247.72/30 | 10.76.247.73 – 10.76.247.74 | 10.76.247.75 |
| 84 | 10.76.247.76/30 | 10.76.247.77 – 10.76.247.78 | 10.76.247.79 |
| 85 | 10.76.247.80/30 | 10.76.247.81 – 10.76.247.82 | 10.76.247.83 |
| 86 | 10.76.247.84/30 | 10.76.247.85 – 10.76.247.86 | 10.76.247.87 |
| 87 | 10.76.247.88/30 | 10.76.247.89 – 10.76.247.90 | 10.76.247.91 |
| 88 | 10.76.247.92/30 | 10.76.247.93 – 10.76.247.94 | 10.76.247.95 |
| 89 | 10.76.247.96/30 | 10.76.247.97 – 10.76.247.98 | 10.76.247.99 |
| 90 | 10.76.247.100/30 | 10.76.247.101 – 10.76.247.102 | 10.76.247.103 |
| 91 | 10.76.247.104/30 | 10.76.247.105 – 10.76.247.106 | 10.76.247.107 |
| 92 | 10.76.247.108/30 | 10.76.247.109 – 10.76.247.110 | 10.76.247.111 |
| 93 | 10.76.247.112/30 | 10.76.247.113 – 10.76.247.114 | 10.76.247.115 |
| 94 | 10.76.247.116/30 | 10.76.247.117 – 10.76.247.118 | 10.76.247.119 |
| 95 | 10.76.247.120/30 | 10.76.247.121 – 10.76.247.122 | 10.76.247.123 |
| 96 | 10.76.247.124/30 | 10.76.247.125 – 10.76.247.126 | 10.76.247.127 |
| 97 | 10.76.247.128/30 | 10.76.247.129 – 10.76.247.130 | 10.76.247.131 |
| 98 | 10.76.247.132/30 | 10.76.247.133 – 10.76.247.134 | 10.76.247.135 |
| 99 | 10.76.247.136/30 | 10.76.247.137 – 10.76.247.138 | 10.76.247.139 |
| 100 | 10.76.247.140/30 | 10.76.247.141 – 10.76.247.142 | 10.76.247.143 |
| 101 | 10.76.247.144/30 | 10.76.247.145 – 10.76.247.146 | 10.76.247.147 |
| 102 | 10.76.247.148/30 | 10.76.247.149 – 10.76.247.150 | 10.76.247.151 |
| 103 | 10.76.247.152/30 | 10.76.247.153 – 10.76.247.154 | 10.76.247.155 |
| 104 | 10.76.247.156/30 | 10.76.247.157 – 10.76.247.158 | 10.76.247.159 |
| 105 | 10.76.247.160/30 | 10.76.247.161 – 10.76.247.162 | 10.76.247.163 |
| 106 | 10.76.247.164/30 | 10.76.247.165 – 10.76.247.166 | 10.76.247.167 |
| 107 | 10.76.247.168/30 | 10.76.247.169 – 10.76.247.170 | 10.76.247.171 |
| 108 | 10.76.247.172/30 | 10.76.247.173 – 10.76.247.174 | 10.76.247.175 |
| 109 | 10.76.247.176/30 | 10.76.247.177 – 10.76.247.178 | 10.76.247.179 |
| 110 | 10.76.247.180/30 | 10.76.247.181 – 10.76.247.182 | 10.76.247.183 |
| 111 | 10.76.247.184/30 | 10.76.247.185 – 10.76.247.186 | 10.76.247.187 |
| 112 | 10.76.247.188/30 | 10.76.247.189 – 10.76.247.190 | 10.76.247.191 |
| 113 | 10.76.247.192/30 | 10.76.247.193 – 10.76.247.194 | 10.76.247.195 |
| 114 | 10.76.247.196/30 | 10.76.247.197 – 10.76.247.198 | 10.76.247.199 |
| 115 | 10.76.247.200/30 | 10.76.247.201 – 10.76.247.202 | 10.76.247.203 |
| 116 | 10.76.247.204/30 | 10.76.247.205 – 10.76.247.206 | 10.76.247.207 |
| 117 | 10.76.247.208/30 | 10.76.247.209 – 10.76.247.210 | 10.76.247.211 |
| 118 | 10.76.247.212/30 | 10.76.247.213 – 10.76.247.214 | 10.76.247.215 |
| 119 | 10.76.247.216/30 | 10.76.247.217 – 10.76.247.218 | 10.76.247.219 |
| 120 | 10.76.247.220/30 | 10.76.247.221 – 10.76.247.222 | 10.76.247.223 |
| 121 | 10.76.247.224/30 | 10.76.247.225 – 10.76.247.226 | 10.76.247.227 |
| 122 | 10.76.247.228/30 | 10.76.247.229 – 10.76.247.230 | 10.76.247.231 |
| 123 | 10.76.247.232/30 | 10.76.247.233 – 10.76.247.234 | 10.76.247.235 |
| 124 | 10.76.247.236/30 | 10.76.247.237 – 10.76.247.238 | 10.76.247.239 |
| 125 | 10.76.247.240/30 | 10.76.247.241 – 10.76.247.242 | 10.76.247.243 |
| 126 | 10.76.247.244/30 | 10.76.247.245 – 10.76.247.246 | 10.76.247.247 |
| 127 | 10.76.247.248/30 | 10.76.247.249 – 10.76.247.250 | 10.76.247.251 |
| 128 | 10.76.247.252/30 | 10.76.247.253 – 10.76.247.254 | 10.76.247.255 |
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.