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)10.0.134.0/23
network10.0.134.0/23
broadcast10.0.135.255
first host10.0.134.1
last host10.0.135.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.0.134.0/23
address00001010.00000000.10000110.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.00000000.10000110.00000000
broadcast00001010.00000000.10000111.11111111
green = network part, grey = host part
hex0x0a008600
decimal167806464
reverse dns0.134.0.10.in-addr.arpa
ipv4-mapped::ffff:a00:8600
/23 split into /30 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.0.134.0/30 | 10.0.134.1 – 10.0.134.2 | 10.0.134.3 |
| 2 | 10.0.134.4/30 | 10.0.134.5 – 10.0.134.6 | 10.0.134.7 |
| 3 | 10.0.134.8/30 | 10.0.134.9 – 10.0.134.10 | 10.0.134.11 |
| 4 | 10.0.134.12/30 | 10.0.134.13 – 10.0.134.14 | 10.0.134.15 |
| 5 | 10.0.134.16/30 | 10.0.134.17 – 10.0.134.18 | 10.0.134.19 |
| 6 | 10.0.134.20/30 | 10.0.134.21 – 10.0.134.22 | 10.0.134.23 |
| 7 | 10.0.134.24/30 | 10.0.134.25 – 10.0.134.26 | 10.0.134.27 |
| 8 | 10.0.134.28/30 | 10.0.134.29 – 10.0.134.30 | 10.0.134.31 |
| 9 | 10.0.134.32/30 | 10.0.134.33 – 10.0.134.34 | 10.0.134.35 |
| 10 | 10.0.134.36/30 | 10.0.134.37 – 10.0.134.38 | 10.0.134.39 |
| 11 | 10.0.134.40/30 | 10.0.134.41 – 10.0.134.42 | 10.0.134.43 |
| 12 | 10.0.134.44/30 | 10.0.134.45 – 10.0.134.46 | 10.0.134.47 |
| 13 | 10.0.134.48/30 | 10.0.134.49 – 10.0.134.50 | 10.0.134.51 |
| 14 | 10.0.134.52/30 | 10.0.134.53 – 10.0.134.54 | 10.0.134.55 |
| 15 | 10.0.134.56/30 | 10.0.134.57 – 10.0.134.58 | 10.0.134.59 |
| 16 | 10.0.134.60/30 | 10.0.134.61 – 10.0.134.62 | 10.0.134.63 |
| 17 | 10.0.134.64/30 | 10.0.134.65 – 10.0.134.66 | 10.0.134.67 |
| 18 | 10.0.134.68/30 | 10.0.134.69 – 10.0.134.70 | 10.0.134.71 |
| 19 | 10.0.134.72/30 | 10.0.134.73 – 10.0.134.74 | 10.0.134.75 |
| 20 | 10.0.134.76/30 | 10.0.134.77 – 10.0.134.78 | 10.0.134.79 |
| 21 | 10.0.134.80/30 | 10.0.134.81 – 10.0.134.82 | 10.0.134.83 |
| 22 | 10.0.134.84/30 | 10.0.134.85 – 10.0.134.86 | 10.0.134.87 |
| 23 | 10.0.134.88/30 | 10.0.134.89 – 10.0.134.90 | 10.0.134.91 |
| 24 | 10.0.134.92/30 | 10.0.134.93 – 10.0.134.94 | 10.0.134.95 |
| 25 | 10.0.134.96/30 | 10.0.134.97 – 10.0.134.98 | 10.0.134.99 |
| 26 | 10.0.134.100/30 | 10.0.134.101 – 10.0.134.102 | 10.0.134.103 |
| 27 | 10.0.134.104/30 | 10.0.134.105 – 10.0.134.106 | 10.0.134.107 |
| 28 | 10.0.134.108/30 | 10.0.134.109 – 10.0.134.110 | 10.0.134.111 |
| 29 | 10.0.134.112/30 | 10.0.134.113 – 10.0.134.114 | 10.0.134.115 |
| 30 | 10.0.134.116/30 | 10.0.134.117 – 10.0.134.118 | 10.0.134.119 |
| 31 | 10.0.134.120/30 | 10.0.134.121 – 10.0.134.122 | 10.0.134.123 |
| 32 | 10.0.134.124/30 | 10.0.134.125 – 10.0.134.126 | 10.0.134.127 |
| 33 | 10.0.134.128/30 | 10.0.134.129 – 10.0.134.130 | 10.0.134.131 |
| 34 | 10.0.134.132/30 | 10.0.134.133 – 10.0.134.134 | 10.0.134.135 |
| 35 | 10.0.134.136/30 | 10.0.134.137 – 10.0.134.138 | 10.0.134.139 |
| 36 | 10.0.134.140/30 | 10.0.134.141 – 10.0.134.142 | 10.0.134.143 |
| 37 | 10.0.134.144/30 | 10.0.134.145 – 10.0.134.146 | 10.0.134.147 |
| 38 | 10.0.134.148/30 | 10.0.134.149 – 10.0.134.150 | 10.0.134.151 |
| 39 | 10.0.134.152/30 | 10.0.134.153 – 10.0.134.154 | 10.0.134.155 |
| 40 | 10.0.134.156/30 | 10.0.134.157 – 10.0.134.158 | 10.0.134.159 |
| 41 | 10.0.134.160/30 | 10.0.134.161 – 10.0.134.162 | 10.0.134.163 |
| 42 | 10.0.134.164/30 | 10.0.134.165 – 10.0.134.166 | 10.0.134.167 |
| 43 | 10.0.134.168/30 | 10.0.134.169 – 10.0.134.170 | 10.0.134.171 |
| 44 | 10.0.134.172/30 | 10.0.134.173 – 10.0.134.174 | 10.0.134.175 |
| 45 | 10.0.134.176/30 | 10.0.134.177 – 10.0.134.178 | 10.0.134.179 |
| 46 | 10.0.134.180/30 | 10.0.134.181 – 10.0.134.182 | 10.0.134.183 |
| 47 | 10.0.134.184/30 | 10.0.134.185 – 10.0.134.186 | 10.0.134.187 |
| 48 | 10.0.134.188/30 | 10.0.134.189 – 10.0.134.190 | 10.0.134.191 |
| 49 | 10.0.134.192/30 | 10.0.134.193 – 10.0.134.194 | 10.0.134.195 |
| 50 | 10.0.134.196/30 | 10.0.134.197 – 10.0.134.198 | 10.0.134.199 |
| 51 | 10.0.134.200/30 | 10.0.134.201 – 10.0.134.202 | 10.0.134.203 |
| 52 | 10.0.134.204/30 | 10.0.134.205 – 10.0.134.206 | 10.0.134.207 |
| 53 | 10.0.134.208/30 | 10.0.134.209 – 10.0.134.210 | 10.0.134.211 |
| 54 | 10.0.134.212/30 | 10.0.134.213 – 10.0.134.214 | 10.0.134.215 |
| 55 | 10.0.134.216/30 | 10.0.134.217 – 10.0.134.218 | 10.0.134.219 |
| 56 | 10.0.134.220/30 | 10.0.134.221 – 10.0.134.222 | 10.0.134.223 |
| 57 | 10.0.134.224/30 | 10.0.134.225 – 10.0.134.226 | 10.0.134.227 |
| 58 | 10.0.134.228/30 | 10.0.134.229 – 10.0.134.230 | 10.0.134.231 |
| 59 | 10.0.134.232/30 | 10.0.134.233 – 10.0.134.234 | 10.0.134.235 |
| 60 | 10.0.134.236/30 | 10.0.134.237 – 10.0.134.238 | 10.0.134.239 |
| 61 | 10.0.134.240/30 | 10.0.134.241 – 10.0.134.242 | 10.0.134.243 |
| 62 | 10.0.134.244/30 | 10.0.134.245 – 10.0.134.246 | 10.0.134.247 |
| 63 | 10.0.134.248/30 | 10.0.134.249 – 10.0.134.250 | 10.0.134.251 |
| 64 | 10.0.134.252/30 | 10.0.134.253 – 10.0.134.254 | 10.0.134.255 |
| 65 | 10.0.135.0/30 | 10.0.135.1 – 10.0.135.2 | 10.0.135.3 |
| 66 | 10.0.135.4/30 | 10.0.135.5 – 10.0.135.6 | 10.0.135.7 |
| 67 | 10.0.135.8/30 | 10.0.135.9 – 10.0.135.10 | 10.0.135.11 |
| 68 | 10.0.135.12/30 | 10.0.135.13 – 10.0.135.14 | 10.0.135.15 |
| 69 | 10.0.135.16/30 | 10.0.135.17 – 10.0.135.18 | 10.0.135.19 |
| 70 | 10.0.135.20/30 | 10.0.135.21 – 10.0.135.22 | 10.0.135.23 |
| 71 | 10.0.135.24/30 | 10.0.135.25 – 10.0.135.26 | 10.0.135.27 |
| 72 | 10.0.135.28/30 | 10.0.135.29 – 10.0.135.30 | 10.0.135.31 |
| 73 | 10.0.135.32/30 | 10.0.135.33 – 10.0.135.34 | 10.0.135.35 |
| 74 | 10.0.135.36/30 | 10.0.135.37 – 10.0.135.38 | 10.0.135.39 |
| 75 | 10.0.135.40/30 | 10.0.135.41 – 10.0.135.42 | 10.0.135.43 |
| 76 | 10.0.135.44/30 | 10.0.135.45 – 10.0.135.46 | 10.0.135.47 |
| 77 | 10.0.135.48/30 | 10.0.135.49 – 10.0.135.50 | 10.0.135.51 |
| 78 | 10.0.135.52/30 | 10.0.135.53 – 10.0.135.54 | 10.0.135.55 |
| 79 | 10.0.135.56/30 | 10.0.135.57 – 10.0.135.58 | 10.0.135.59 |
| 80 | 10.0.135.60/30 | 10.0.135.61 – 10.0.135.62 | 10.0.135.63 |
| 81 | 10.0.135.64/30 | 10.0.135.65 – 10.0.135.66 | 10.0.135.67 |
| 82 | 10.0.135.68/30 | 10.0.135.69 – 10.0.135.70 | 10.0.135.71 |
| 83 | 10.0.135.72/30 | 10.0.135.73 – 10.0.135.74 | 10.0.135.75 |
| 84 | 10.0.135.76/30 | 10.0.135.77 – 10.0.135.78 | 10.0.135.79 |
| 85 | 10.0.135.80/30 | 10.0.135.81 – 10.0.135.82 | 10.0.135.83 |
| 86 | 10.0.135.84/30 | 10.0.135.85 – 10.0.135.86 | 10.0.135.87 |
| 87 | 10.0.135.88/30 | 10.0.135.89 – 10.0.135.90 | 10.0.135.91 |
| 88 | 10.0.135.92/30 | 10.0.135.93 – 10.0.135.94 | 10.0.135.95 |
| 89 | 10.0.135.96/30 | 10.0.135.97 – 10.0.135.98 | 10.0.135.99 |
| 90 | 10.0.135.100/30 | 10.0.135.101 – 10.0.135.102 | 10.0.135.103 |
| 91 | 10.0.135.104/30 | 10.0.135.105 – 10.0.135.106 | 10.0.135.107 |
| 92 | 10.0.135.108/30 | 10.0.135.109 – 10.0.135.110 | 10.0.135.111 |
| 93 | 10.0.135.112/30 | 10.0.135.113 – 10.0.135.114 | 10.0.135.115 |
| 94 | 10.0.135.116/30 | 10.0.135.117 – 10.0.135.118 | 10.0.135.119 |
| 95 | 10.0.135.120/30 | 10.0.135.121 – 10.0.135.122 | 10.0.135.123 |
| 96 | 10.0.135.124/30 | 10.0.135.125 – 10.0.135.126 | 10.0.135.127 |
| 97 | 10.0.135.128/30 | 10.0.135.129 – 10.0.135.130 | 10.0.135.131 |
| 98 | 10.0.135.132/30 | 10.0.135.133 – 10.0.135.134 | 10.0.135.135 |
| 99 | 10.0.135.136/30 | 10.0.135.137 – 10.0.135.138 | 10.0.135.139 |
| 100 | 10.0.135.140/30 | 10.0.135.141 – 10.0.135.142 | 10.0.135.143 |
| 101 | 10.0.135.144/30 | 10.0.135.145 – 10.0.135.146 | 10.0.135.147 |
| 102 | 10.0.135.148/30 | 10.0.135.149 – 10.0.135.150 | 10.0.135.151 |
| 103 | 10.0.135.152/30 | 10.0.135.153 – 10.0.135.154 | 10.0.135.155 |
| 104 | 10.0.135.156/30 | 10.0.135.157 – 10.0.135.158 | 10.0.135.159 |
| 105 | 10.0.135.160/30 | 10.0.135.161 – 10.0.135.162 | 10.0.135.163 |
| 106 | 10.0.135.164/30 | 10.0.135.165 – 10.0.135.166 | 10.0.135.167 |
| 107 | 10.0.135.168/30 | 10.0.135.169 – 10.0.135.170 | 10.0.135.171 |
| 108 | 10.0.135.172/30 | 10.0.135.173 – 10.0.135.174 | 10.0.135.175 |
| 109 | 10.0.135.176/30 | 10.0.135.177 – 10.0.135.178 | 10.0.135.179 |
| 110 | 10.0.135.180/30 | 10.0.135.181 – 10.0.135.182 | 10.0.135.183 |
| 111 | 10.0.135.184/30 | 10.0.135.185 – 10.0.135.186 | 10.0.135.187 |
| 112 | 10.0.135.188/30 | 10.0.135.189 – 10.0.135.190 | 10.0.135.191 |
| 113 | 10.0.135.192/30 | 10.0.135.193 – 10.0.135.194 | 10.0.135.195 |
| 114 | 10.0.135.196/30 | 10.0.135.197 – 10.0.135.198 | 10.0.135.199 |
| 115 | 10.0.135.200/30 | 10.0.135.201 – 10.0.135.202 | 10.0.135.203 |
| 116 | 10.0.135.204/30 | 10.0.135.205 – 10.0.135.206 | 10.0.135.207 |
| 117 | 10.0.135.208/30 | 10.0.135.209 – 10.0.135.210 | 10.0.135.211 |
| 118 | 10.0.135.212/30 | 10.0.135.213 – 10.0.135.214 | 10.0.135.215 |
| 119 | 10.0.135.216/30 | 10.0.135.217 – 10.0.135.218 | 10.0.135.219 |
| 120 | 10.0.135.220/30 | 10.0.135.221 – 10.0.135.222 | 10.0.135.223 |
| 121 | 10.0.135.224/30 | 10.0.135.225 – 10.0.135.226 | 10.0.135.227 |
| 122 | 10.0.135.228/30 | 10.0.135.229 – 10.0.135.230 | 10.0.135.231 |
| 123 | 10.0.135.232/30 | 10.0.135.233 – 10.0.135.234 | 10.0.135.235 |
| 124 | 10.0.135.236/30 | 10.0.135.237 – 10.0.135.238 | 10.0.135.239 |
| 125 | 10.0.135.240/30 | 10.0.135.241 – 10.0.135.242 | 10.0.135.243 |
| 126 | 10.0.135.244/30 | 10.0.135.245 – 10.0.135.246 | 10.0.135.247 |
| 127 | 10.0.135.248/30 | 10.0.135.249 – 10.0.135.250 | 10.0.135.251 |
| 128 | 10.0.135.252/30 | 10.0.135.253 – 10.0.135.254 | 10.0.135.255 |
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.