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)10.201.152.0/23
network10.201.152.0/23
broadcast10.201.153.255
first host10.201.152.1
last host10.201.153.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.201.152.0/23
address00001010.11001001.10011000.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.11001001.10011000.00000000
broadcast00001010.11001001.10011001.11111111
green = network part, grey = host part
hex0x0ac99800
decimal180983808
reverse dns0.152.201.10.in-addr.arpa
ipv4-mapped::ffff:ac9:9800
/23 split into /30 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.201.152.0/30 | 10.201.152.1 – 10.201.152.2 | 10.201.152.3 |
| 2 | 10.201.152.4/30 | 10.201.152.5 – 10.201.152.6 | 10.201.152.7 |
| 3 | 10.201.152.8/30 | 10.201.152.9 – 10.201.152.10 | 10.201.152.11 |
| 4 | 10.201.152.12/30 | 10.201.152.13 – 10.201.152.14 | 10.201.152.15 |
| 5 | 10.201.152.16/30 | 10.201.152.17 – 10.201.152.18 | 10.201.152.19 |
| 6 | 10.201.152.20/30 | 10.201.152.21 – 10.201.152.22 | 10.201.152.23 |
| 7 | 10.201.152.24/30 | 10.201.152.25 – 10.201.152.26 | 10.201.152.27 |
| 8 | 10.201.152.28/30 | 10.201.152.29 – 10.201.152.30 | 10.201.152.31 |
| 9 | 10.201.152.32/30 | 10.201.152.33 – 10.201.152.34 | 10.201.152.35 |
| 10 | 10.201.152.36/30 | 10.201.152.37 – 10.201.152.38 | 10.201.152.39 |
| 11 | 10.201.152.40/30 | 10.201.152.41 – 10.201.152.42 | 10.201.152.43 |
| 12 | 10.201.152.44/30 | 10.201.152.45 – 10.201.152.46 | 10.201.152.47 |
| 13 | 10.201.152.48/30 | 10.201.152.49 – 10.201.152.50 | 10.201.152.51 |
| 14 | 10.201.152.52/30 | 10.201.152.53 – 10.201.152.54 | 10.201.152.55 |
| 15 | 10.201.152.56/30 | 10.201.152.57 – 10.201.152.58 | 10.201.152.59 |
| 16 | 10.201.152.60/30 | 10.201.152.61 – 10.201.152.62 | 10.201.152.63 |
| 17 | 10.201.152.64/30 | 10.201.152.65 – 10.201.152.66 | 10.201.152.67 |
| 18 | 10.201.152.68/30 | 10.201.152.69 – 10.201.152.70 | 10.201.152.71 |
| 19 | 10.201.152.72/30 | 10.201.152.73 – 10.201.152.74 | 10.201.152.75 |
| 20 | 10.201.152.76/30 | 10.201.152.77 – 10.201.152.78 | 10.201.152.79 |
| 21 | 10.201.152.80/30 | 10.201.152.81 – 10.201.152.82 | 10.201.152.83 |
| 22 | 10.201.152.84/30 | 10.201.152.85 – 10.201.152.86 | 10.201.152.87 |
| 23 | 10.201.152.88/30 | 10.201.152.89 – 10.201.152.90 | 10.201.152.91 |
| 24 | 10.201.152.92/30 | 10.201.152.93 – 10.201.152.94 | 10.201.152.95 |
| 25 | 10.201.152.96/30 | 10.201.152.97 – 10.201.152.98 | 10.201.152.99 |
| 26 | 10.201.152.100/30 | 10.201.152.101 – 10.201.152.102 | 10.201.152.103 |
| 27 | 10.201.152.104/30 | 10.201.152.105 – 10.201.152.106 | 10.201.152.107 |
| 28 | 10.201.152.108/30 | 10.201.152.109 – 10.201.152.110 | 10.201.152.111 |
| 29 | 10.201.152.112/30 | 10.201.152.113 – 10.201.152.114 | 10.201.152.115 |
| 30 | 10.201.152.116/30 | 10.201.152.117 – 10.201.152.118 | 10.201.152.119 |
| 31 | 10.201.152.120/30 | 10.201.152.121 – 10.201.152.122 | 10.201.152.123 |
| 32 | 10.201.152.124/30 | 10.201.152.125 – 10.201.152.126 | 10.201.152.127 |
| 33 | 10.201.152.128/30 | 10.201.152.129 – 10.201.152.130 | 10.201.152.131 |
| 34 | 10.201.152.132/30 | 10.201.152.133 – 10.201.152.134 | 10.201.152.135 |
| 35 | 10.201.152.136/30 | 10.201.152.137 – 10.201.152.138 | 10.201.152.139 |
| 36 | 10.201.152.140/30 | 10.201.152.141 – 10.201.152.142 | 10.201.152.143 |
| 37 | 10.201.152.144/30 | 10.201.152.145 – 10.201.152.146 | 10.201.152.147 |
| 38 | 10.201.152.148/30 | 10.201.152.149 – 10.201.152.150 | 10.201.152.151 |
| 39 | 10.201.152.152/30 | 10.201.152.153 – 10.201.152.154 | 10.201.152.155 |
| 40 | 10.201.152.156/30 | 10.201.152.157 – 10.201.152.158 | 10.201.152.159 |
| 41 | 10.201.152.160/30 | 10.201.152.161 – 10.201.152.162 | 10.201.152.163 |
| 42 | 10.201.152.164/30 | 10.201.152.165 – 10.201.152.166 | 10.201.152.167 |
| 43 | 10.201.152.168/30 | 10.201.152.169 – 10.201.152.170 | 10.201.152.171 |
| 44 | 10.201.152.172/30 | 10.201.152.173 – 10.201.152.174 | 10.201.152.175 |
| 45 | 10.201.152.176/30 | 10.201.152.177 – 10.201.152.178 | 10.201.152.179 |
| 46 | 10.201.152.180/30 | 10.201.152.181 – 10.201.152.182 | 10.201.152.183 |
| 47 | 10.201.152.184/30 | 10.201.152.185 – 10.201.152.186 | 10.201.152.187 |
| 48 | 10.201.152.188/30 | 10.201.152.189 – 10.201.152.190 | 10.201.152.191 |
| 49 | 10.201.152.192/30 | 10.201.152.193 – 10.201.152.194 | 10.201.152.195 |
| 50 | 10.201.152.196/30 | 10.201.152.197 – 10.201.152.198 | 10.201.152.199 |
| 51 | 10.201.152.200/30 | 10.201.152.201 – 10.201.152.202 | 10.201.152.203 |
| 52 | 10.201.152.204/30 | 10.201.152.205 – 10.201.152.206 | 10.201.152.207 |
| 53 | 10.201.152.208/30 | 10.201.152.209 – 10.201.152.210 | 10.201.152.211 |
| 54 | 10.201.152.212/30 | 10.201.152.213 – 10.201.152.214 | 10.201.152.215 |
| 55 | 10.201.152.216/30 | 10.201.152.217 – 10.201.152.218 | 10.201.152.219 |
| 56 | 10.201.152.220/30 | 10.201.152.221 – 10.201.152.222 | 10.201.152.223 |
| 57 | 10.201.152.224/30 | 10.201.152.225 – 10.201.152.226 | 10.201.152.227 |
| 58 | 10.201.152.228/30 | 10.201.152.229 – 10.201.152.230 | 10.201.152.231 |
| 59 | 10.201.152.232/30 | 10.201.152.233 – 10.201.152.234 | 10.201.152.235 |
| 60 | 10.201.152.236/30 | 10.201.152.237 – 10.201.152.238 | 10.201.152.239 |
| 61 | 10.201.152.240/30 | 10.201.152.241 – 10.201.152.242 | 10.201.152.243 |
| 62 | 10.201.152.244/30 | 10.201.152.245 – 10.201.152.246 | 10.201.152.247 |
| 63 | 10.201.152.248/30 | 10.201.152.249 – 10.201.152.250 | 10.201.152.251 |
| 64 | 10.201.152.252/30 | 10.201.152.253 – 10.201.152.254 | 10.201.152.255 |
| 65 | 10.201.153.0/30 | 10.201.153.1 – 10.201.153.2 | 10.201.153.3 |
| 66 | 10.201.153.4/30 | 10.201.153.5 – 10.201.153.6 | 10.201.153.7 |
| 67 | 10.201.153.8/30 | 10.201.153.9 – 10.201.153.10 | 10.201.153.11 |
| 68 | 10.201.153.12/30 | 10.201.153.13 – 10.201.153.14 | 10.201.153.15 |
| 69 | 10.201.153.16/30 | 10.201.153.17 – 10.201.153.18 | 10.201.153.19 |
| 70 | 10.201.153.20/30 | 10.201.153.21 – 10.201.153.22 | 10.201.153.23 |
| 71 | 10.201.153.24/30 | 10.201.153.25 – 10.201.153.26 | 10.201.153.27 |
| 72 | 10.201.153.28/30 | 10.201.153.29 – 10.201.153.30 | 10.201.153.31 |
| 73 | 10.201.153.32/30 | 10.201.153.33 – 10.201.153.34 | 10.201.153.35 |
| 74 | 10.201.153.36/30 | 10.201.153.37 – 10.201.153.38 | 10.201.153.39 |
| 75 | 10.201.153.40/30 | 10.201.153.41 – 10.201.153.42 | 10.201.153.43 |
| 76 | 10.201.153.44/30 | 10.201.153.45 – 10.201.153.46 | 10.201.153.47 |
| 77 | 10.201.153.48/30 | 10.201.153.49 – 10.201.153.50 | 10.201.153.51 |
| 78 | 10.201.153.52/30 | 10.201.153.53 – 10.201.153.54 | 10.201.153.55 |
| 79 | 10.201.153.56/30 | 10.201.153.57 – 10.201.153.58 | 10.201.153.59 |
| 80 | 10.201.153.60/30 | 10.201.153.61 – 10.201.153.62 | 10.201.153.63 |
| 81 | 10.201.153.64/30 | 10.201.153.65 – 10.201.153.66 | 10.201.153.67 |
| 82 | 10.201.153.68/30 | 10.201.153.69 – 10.201.153.70 | 10.201.153.71 |
| 83 | 10.201.153.72/30 | 10.201.153.73 – 10.201.153.74 | 10.201.153.75 |
| 84 | 10.201.153.76/30 | 10.201.153.77 – 10.201.153.78 | 10.201.153.79 |
| 85 | 10.201.153.80/30 | 10.201.153.81 – 10.201.153.82 | 10.201.153.83 |
| 86 | 10.201.153.84/30 | 10.201.153.85 – 10.201.153.86 | 10.201.153.87 |
| 87 | 10.201.153.88/30 | 10.201.153.89 – 10.201.153.90 | 10.201.153.91 |
| 88 | 10.201.153.92/30 | 10.201.153.93 – 10.201.153.94 | 10.201.153.95 |
| 89 | 10.201.153.96/30 | 10.201.153.97 – 10.201.153.98 | 10.201.153.99 |
| 90 | 10.201.153.100/30 | 10.201.153.101 – 10.201.153.102 | 10.201.153.103 |
| 91 | 10.201.153.104/30 | 10.201.153.105 – 10.201.153.106 | 10.201.153.107 |
| 92 | 10.201.153.108/30 | 10.201.153.109 – 10.201.153.110 | 10.201.153.111 |
| 93 | 10.201.153.112/30 | 10.201.153.113 – 10.201.153.114 | 10.201.153.115 |
| 94 | 10.201.153.116/30 | 10.201.153.117 – 10.201.153.118 | 10.201.153.119 |
| 95 | 10.201.153.120/30 | 10.201.153.121 – 10.201.153.122 | 10.201.153.123 |
| 96 | 10.201.153.124/30 | 10.201.153.125 – 10.201.153.126 | 10.201.153.127 |
| 97 | 10.201.153.128/30 | 10.201.153.129 – 10.201.153.130 | 10.201.153.131 |
| 98 | 10.201.153.132/30 | 10.201.153.133 – 10.201.153.134 | 10.201.153.135 |
| 99 | 10.201.153.136/30 | 10.201.153.137 – 10.201.153.138 | 10.201.153.139 |
| 100 | 10.201.153.140/30 | 10.201.153.141 – 10.201.153.142 | 10.201.153.143 |
| 101 | 10.201.153.144/30 | 10.201.153.145 – 10.201.153.146 | 10.201.153.147 |
| 102 | 10.201.153.148/30 | 10.201.153.149 – 10.201.153.150 | 10.201.153.151 |
| 103 | 10.201.153.152/30 | 10.201.153.153 – 10.201.153.154 | 10.201.153.155 |
| 104 | 10.201.153.156/30 | 10.201.153.157 – 10.201.153.158 | 10.201.153.159 |
| 105 | 10.201.153.160/30 | 10.201.153.161 – 10.201.153.162 | 10.201.153.163 |
| 106 | 10.201.153.164/30 | 10.201.153.165 – 10.201.153.166 | 10.201.153.167 |
| 107 | 10.201.153.168/30 | 10.201.153.169 – 10.201.153.170 | 10.201.153.171 |
| 108 | 10.201.153.172/30 | 10.201.153.173 – 10.201.153.174 | 10.201.153.175 |
| 109 | 10.201.153.176/30 | 10.201.153.177 – 10.201.153.178 | 10.201.153.179 |
| 110 | 10.201.153.180/30 | 10.201.153.181 – 10.201.153.182 | 10.201.153.183 |
| 111 | 10.201.153.184/30 | 10.201.153.185 – 10.201.153.186 | 10.201.153.187 |
| 112 | 10.201.153.188/30 | 10.201.153.189 – 10.201.153.190 | 10.201.153.191 |
| 113 | 10.201.153.192/30 | 10.201.153.193 – 10.201.153.194 | 10.201.153.195 |
| 114 | 10.201.153.196/30 | 10.201.153.197 – 10.201.153.198 | 10.201.153.199 |
| 115 | 10.201.153.200/30 | 10.201.153.201 – 10.201.153.202 | 10.201.153.203 |
| 116 | 10.201.153.204/30 | 10.201.153.205 – 10.201.153.206 | 10.201.153.207 |
| 117 | 10.201.153.208/30 | 10.201.153.209 – 10.201.153.210 | 10.201.153.211 |
| 118 | 10.201.153.212/30 | 10.201.153.213 – 10.201.153.214 | 10.201.153.215 |
| 119 | 10.201.153.216/30 | 10.201.153.217 – 10.201.153.218 | 10.201.153.219 |
| 120 | 10.201.153.220/30 | 10.201.153.221 – 10.201.153.222 | 10.201.153.223 |
| 121 | 10.201.153.224/30 | 10.201.153.225 – 10.201.153.226 | 10.201.153.227 |
| 122 | 10.201.153.228/30 | 10.201.153.229 – 10.201.153.230 | 10.201.153.231 |
| 123 | 10.201.153.232/30 | 10.201.153.233 – 10.201.153.234 | 10.201.153.235 |
| 124 | 10.201.153.236/30 | 10.201.153.237 – 10.201.153.238 | 10.201.153.239 |
| 125 | 10.201.153.240/30 | 10.201.153.241 – 10.201.153.242 | 10.201.153.243 |
| 126 | 10.201.153.244/30 | 10.201.153.245 – 10.201.153.246 | 10.201.153.247 |
| 127 | 10.201.153.248/30 | 10.201.153.249 – 10.201.153.250 | 10.201.153.251 |
| 128 | 10.201.153.252/30 | 10.201.153.253 – 10.201.153.254 | 10.201.153.255 |
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.