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)10.76.252.0/23
network10.76.252.0/23
broadcast10.76.253.255
first host10.76.252.1
last host10.76.253.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.76.252.0/23
address00001010.01001100.11111100.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.01001100.11111100.00000000
broadcast00001010.01001100.11111101.11111111
green = network part, grey = host part
hex0x0a4cfc00
decimal172817408
reverse dns0.252.76.10.in-addr.arpa
ipv4-mapped::ffff:a4c:fc00
/23 split into /30 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.76.252.0/30 | 10.76.252.1 – 10.76.252.2 | 10.76.252.3 |
| 2 | 10.76.252.4/30 | 10.76.252.5 – 10.76.252.6 | 10.76.252.7 |
| 3 | 10.76.252.8/30 | 10.76.252.9 – 10.76.252.10 | 10.76.252.11 |
| 4 | 10.76.252.12/30 | 10.76.252.13 – 10.76.252.14 | 10.76.252.15 |
| 5 | 10.76.252.16/30 | 10.76.252.17 – 10.76.252.18 | 10.76.252.19 |
| 6 | 10.76.252.20/30 | 10.76.252.21 – 10.76.252.22 | 10.76.252.23 |
| 7 | 10.76.252.24/30 | 10.76.252.25 – 10.76.252.26 | 10.76.252.27 |
| 8 | 10.76.252.28/30 | 10.76.252.29 – 10.76.252.30 | 10.76.252.31 |
| 9 | 10.76.252.32/30 | 10.76.252.33 – 10.76.252.34 | 10.76.252.35 |
| 10 | 10.76.252.36/30 | 10.76.252.37 – 10.76.252.38 | 10.76.252.39 |
| 11 | 10.76.252.40/30 | 10.76.252.41 – 10.76.252.42 | 10.76.252.43 |
| 12 | 10.76.252.44/30 | 10.76.252.45 – 10.76.252.46 | 10.76.252.47 |
| 13 | 10.76.252.48/30 | 10.76.252.49 – 10.76.252.50 | 10.76.252.51 |
| 14 | 10.76.252.52/30 | 10.76.252.53 – 10.76.252.54 | 10.76.252.55 |
| 15 | 10.76.252.56/30 | 10.76.252.57 – 10.76.252.58 | 10.76.252.59 |
| 16 | 10.76.252.60/30 | 10.76.252.61 – 10.76.252.62 | 10.76.252.63 |
| 17 | 10.76.252.64/30 | 10.76.252.65 – 10.76.252.66 | 10.76.252.67 |
| 18 | 10.76.252.68/30 | 10.76.252.69 – 10.76.252.70 | 10.76.252.71 |
| 19 | 10.76.252.72/30 | 10.76.252.73 – 10.76.252.74 | 10.76.252.75 |
| 20 | 10.76.252.76/30 | 10.76.252.77 – 10.76.252.78 | 10.76.252.79 |
| 21 | 10.76.252.80/30 | 10.76.252.81 – 10.76.252.82 | 10.76.252.83 |
| 22 | 10.76.252.84/30 | 10.76.252.85 – 10.76.252.86 | 10.76.252.87 |
| 23 | 10.76.252.88/30 | 10.76.252.89 – 10.76.252.90 | 10.76.252.91 |
| 24 | 10.76.252.92/30 | 10.76.252.93 – 10.76.252.94 | 10.76.252.95 |
| 25 | 10.76.252.96/30 | 10.76.252.97 – 10.76.252.98 | 10.76.252.99 |
| 26 | 10.76.252.100/30 | 10.76.252.101 – 10.76.252.102 | 10.76.252.103 |
| 27 | 10.76.252.104/30 | 10.76.252.105 – 10.76.252.106 | 10.76.252.107 |
| 28 | 10.76.252.108/30 | 10.76.252.109 – 10.76.252.110 | 10.76.252.111 |
| 29 | 10.76.252.112/30 | 10.76.252.113 – 10.76.252.114 | 10.76.252.115 |
| 30 | 10.76.252.116/30 | 10.76.252.117 – 10.76.252.118 | 10.76.252.119 |
| 31 | 10.76.252.120/30 | 10.76.252.121 – 10.76.252.122 | 10.76.252.123 |
| 32 | 10.76.252.124/30 | 10.76.252.125 – 10.76.252.126 | 10.76.252.127 |
| 33 | 10.76.252.128/30 | 10.76.252.129 – 10.76.252.130 | 10.76.252.131 |
| 34 | 10.76.252.132/30 | 10.76.252.133 – 10.76.252.134 | 10.76.252.135 |
| 35 | 10.76.252.136/30 | 10.76.252.137 – 10.76.252.138 | 10.76.252.139 |
| 36 | 10.76.252.140/30 | 10.76.252.141 – 10.76.252.142 | 10.76.252.143 |
| 37 | 10.76.252.144/30 | 10.76.252.145 – 10.76.252.146 | 10.76.252.147 |
| 38 | 10.76.252.148/30 | 10.76.252.149 – 10.76.252.150 | 10.76.252.151 |
| 39 | 10.76.252.152/30 | 10.76.252.153 – 10.76.252.154 | 10.76.252.155 |
| 40 | 10.76.252.156/30 | 10.76.252.157 – 10.76.252.158 | 10.76.252.159 |
| 41 | 10.76.252.160/30 | 10.76.252.161 – 10.76.252.162 | 10.76.252.163 |
| 42 | 10.76.252.164/30 | 10.76.252.165 – 10.76.252.166 | 10.76.252.167 |
| 43 | 10.76.252.168/30 | 10.76.252.169 – 10.76.252.170 | 10.76.252.171 |
| 44 | 10.76.252.172/30 | 10.76.252.173 – 10.76.252.174 | 10.76.252.175 |
| 45 | 10.76.252.176/30 | 10.76.252.177 – 10.76.252.178 | 10.76.252.179 |
| 46 | 10.76.252.180/30 | 10.76.252.181 – 10.76.252.182 | 10.76.252.183 |
| 47 | 10.76.252.184/30 | 10.76.252.185 – 10.76.252.186 | 10.76.252.187 |
| 48 | 10.76.252.188/30 | 10.76.252.189 – 10.76.252.190 | 10.76.252.191 |
| 49 | 10.76.252.192/30 | 10.76.252.193 – 10.76.252.194 | 10.76.252.195 |
| 50 | 10.76.252.196/30 | 10.76.252.197 – 10.76.252.198 | 10.76.252.199 |
| 51 | 10.76.252.200/30 | 10.76.252.201 – 10.76.252.202 | 10.76.252.203 |
| 52 | 10.76.252.204/30 | 10.76.252.205 – 10.76.252.206 | 10.76.252.207 |
| 53 | 10.76.252.208/30 | 10.76.252.209 – 10.76.252.210 | 10.76.252.211 |
| 54 | 10.76.252.212/30 | 10.76.252.213 – 10.76.252.214 | 10.76.252.215 |
| 55 | 10.76.252.216/30 | 10.76.252.217 – 10.76.252.218 | 10.76.252.219 |
| 56 | 10.76.252.220/30 | 10.76.252.221 – 10.76.252.222 | 10.76.252.223 |
| 57 | 10.76.252.224/30 | 10.76.252.225 – 10.76.252.226 | 10.76.252.227 |
| 58 | 10.76.252.228/30 | 10.76.252.229 – 10.76.252.230 | 10.76.252.231 |
| 59 | 10.76.252.232/30 | 10.76.252.233 – 10.76.252.234 | 10.76.252.235 |
| 60 | 10.76.252.236/30 | 10.76.252.237 – 10.76.252.238 | 10.76.252.239 |
| 61 | 10.76.252.240/30 | 10.76.252.241 – 10.76.252.242 | 10.76.252.243 |
| 62 | 10.76.252.244/30 | 10.76.252.245 – 10.76.252.246 | 10.76.252.247 |
| 63 | 10.76.252.248/30 | 10.76.252.249 – 10.76.252.250 | 10.76.252.251 |
| 64 | 10.76.252.252/30 | 10.76.252.253 – 10.76.252.254 | 10.76.252.255 |
| 65 | 10.76.253.0/30 | 10.76.253.1 – 10.76.253.2 | 10.76.253.3 |
| 66 | 10.76.253.4/30 | 10.76.253.5 – 10.76.253.6 | 10.76.253.7 |
| 67 | 10.76.253.8/30 | 10.76.253.9 – 10.76.253.10 | 10.76.253.11 |
| 68 | 10.76.253.12/30 | 10.76.253.13 – 10.76.253.14 | 10.76.253.15 |
| 69 | 10.76.253.16/30 | 10.76.253.17 – 10.76.253.18 | 10.76.253.19 |
| 70 | 10.76.253.20/30 | 10.76.253.21 – 10.76.253.22 | 10.76.253.23 |
| 71 | 10.76.253.24/30 | 10.76.253.25 – 10.76.253.26 | 10.76.253.27 |
| 72 | 10.76.253.28/30 | 10.76.253.29 – 10.76.253.30 | 10.76.253.31 |
| 73 | 10.76.253.32/30 | 10.76.253.33 – 10.76.253.34 | 10.76.253.35 |
| 74 | 10.76.253.36/30 | 10.76.253.37 – 10.76.253.38 | 10.76.253.39 |
| 75 | 10.76.253.40/30 | 10.76.253.41 – 10.76.253.42 | 10.76.253.43 |
| 76 | 10.76.253.44/30 | 10.76.253.45 – 10.76.253.46 | 10.76.253.47 |
| 77 | 10.76.253.48/30 | 10.76.253.49 – 10.76.253.50 | 10.76.253.51 |
| 78 | 10.76.253.52/30 | 10.76.253.53 – 10.76.253.54 | 10.76.253.55 |
| 79 | 10.76.253.56/30 | 10.76.253.57 – 10.76.253.58 | 10.76.253.59 |
| 80 | 10.76.253.60/30 | 10.76.253.61 – 10.76.253.62 | 10.76.253.63 |
| 81 | 10.76.253.64/30 | 10.76.253.65 – 10.76.253.66 | 10.76.253.67 |
| 82 | 10.76.253.68/30 | 10.76.253.69 – 10.76.253.70 | 10.76.253.71 |
| 83 | 10.76.253.72/30 | 10.76.253.73 – 10.76.253.74 | 10.76.253.75 |
| 84 | 10.76.253.76/30 | 10.76.253.77 – 10.76.253.78 | 10.76.253.79 |
| 85 | 10.76.253.80/30 | 10.76.253.81 – 10.76.253.82 | 10.76.253.83 |
| 86 | 10.76.253.84/30 | 10.76.253.85 – 10.76.253.86 | 10.76.253.87 |
| 87 | 10.76.253.88/30 | 10.76.253.89 – 10.76.253.90 | 10.76.253.91 |
| 88 | 10.76.253.92/30 | 10.76.253.93 – 10.76.253.94 | 10.76.253.95 |
| 89 | 10.76.253.96/30 | 10.76.253.97 – 10.76.253.98 | 10.76.253.99 |
| 90 | 10.76.253.100/30 | 10.76.253.101 – 10.76.253.102 | 10.76.253.103 |
| 91 | 10.76.253.104/30 | 10.76.253.105 – 10.76.253.106 | 10.76.253.107 |
| 92 | 10.76.253.108/30 | 10.76.253.109 – 10.76.253.110 | 10.76.253.111 |
| 93 | 10.76.253.112/30 | 10.76.253.113 – 10.76.253.114 | 10.76.253.115 |
| 94 | 10.76.253.116/30 | 10.76.253.117 – 10.76.253.118 | 10.76.253.119 |
| 95 | 10.76.253.120/30 | 10.76.253.121 – 10.76.253.122 | 10.76.253.123 |
| 96 | 10.76.253.124/30 | 10.76.253.125 – 10.76.253.126 | 10.76.253.127 |
| 97 | 10.76.253.128/30 | 10.76.253.129 – 10.76.253.130 | 10.76.253.131 |
| 98 | 10.76.253.132/30 | 10.76.253.133 – 10.76.253.134 | 10.76.253.135 |
| 99 | 10.76.253.136/30 | 10.76.253.137 – 10.76.253.138 | 10.76.253.139 |
| 100 | 10.76.253.140/30 | 10.76.253.141 – 10.76.253.142 | 10.76.253.143 |
| 101 | 10.76.253.144/30 | 10.76.253.145 – 10.76.253.146 | 10.76.253.147 |
| 102 | 10.76.253.148/30 | 10.76.253.149 – 10.76.253.150 | 10.76.253.151 |
| 103 | 10.76.253.152/30 | 10.76.253.153 – 10.76.253.154 | 10.76.253.155 |
| 104 | 10.76.253.156/30 | 10.76.253.157 – 10.76.253.158 | 10.76.253.159 |
| 105 | 10.76.253.160/30 | 10.76.253.161 – 10.76.253.162 | 10.76.253.163 |
| 106 | 10.76.253.164/30 | 10.76.253.165 – 10.76.253.166 | 10.76.253.167 |
| 107 | 10.76.253.168/30 | 10.76.253.169 – 10.76.253.170 | 10.76.253.171 |
| 108 | 10.76.253.172/30 | 10.76.253.173 – 10.76.253.174 | 10.76.253.175 |
| 109 | 10.76.253.176/30 | 10.76.253.177 – 10.76.253.178 | 10.76.253.179 |
| 110 | 10.76.253.180/30 | 10.76.253.181 – 10.76.253.182 | 10.76.253.183 |
| 111 | 10.76.253.184/30 | 10.76.253.185 – 10.76.253.186 | 10.76.253.187 |
| 112 | 10.76.253.188/30 | 10.76.253.189 – 10.76.253.190 | 10.76.253.191 |
| 113 | 10.76.253.192/30 | 10.76.253.193 – 10.76.253.194 | 10.76.253.195 |
| 114 | 10.76.253.196/30 | 10.76.253.197 – 10.76.253.198 | 10.76.253.199 |
| 115 | 10.76.253.200/30 | 10.76.253.201 – 10.76.253.202 | 10.76.253.203 |
| 116 | 10.76.253.204/30 | 10.76.253.205 – 10.76.253.206 | 10.76.253.207 |
| 117 | 10.76.253.208/30 | 10.76.253.209 – 10.76.253.210 | 10.76.253.211 |
| 118 | 10.76.253.212/30 | 10.76.253.213 – 10.76.253.214 | 10.76.253.215 |
| 119 | 10.76.253.216/30 | 10.76.253.217 – 10.76.253.218 | 10.76.253.219 |
| 120 | 10.76.253.220/30 | 10.76.253.221 – 10.76.253.222 | 10.76.253.223 |
| 121 | 10.76.253.224/30 | 10.76.253.225 – 10.76.253.226 | 10.76.253.227 |
| 122 | 10.76.253.228/30 | 10.76.253.229 – 10.76.253.230 | 10.76.253.231 |
| 123 | 10.76.253.232/30 | 10.76.253.233 – 10.76.253.234 | 10.76.253.235 |
| 124 | 10.76.253.236/30 | 10.76.253.237 – 10.76.253.238 | 10.76.253.239 |
| 125 | 10.76.253.240/30 | 10.76.253.241 – 10.76.253.242 | 10.76.253.243 |
| 126 | 10.76.253.244/30 | 10.76.253.245 – 10.76.253.246 | 10.76.253.247 |
| 127 | 10.76.253.248/30 | 10.76.253.249 – 10.76.253.250 | 10.76.253.251 |
| 128 | 10.76.253.252/30 | 10.76.253.253 – 10.76.253.254 | 10.76.253.255 |
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.