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)10.167.198.0/24
network10.167.198.0/24
broadcast10.167.198.255
first host10.167.198.1
last host10.167.198.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.167.198.0/24
address00001010.10100111.11000110.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.10100111.11000110.00000000
broadcast00001010.10100111.11000110.11111111
green = network part, grey = host part
hex0x0aa7c600
decimal178767360
reverse dns0.198.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:c600
/24 split into /31 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.167.198.0/31 | 10.167.198.0 – 10.167.198.1 | 10.167.198.1 |
| 2 | 10.167.198.2/31 | 10.167.198.2 – 10.167.198.3 | 10.167.198.3 |
| 3 | 10.167.198.4/31 | 10.167.198.4 – 10.167.198.5 | 10.167.198.5 |
| 4 | 10.167.198.6/31 | 10.167.198.6 – 10.167.198.7 | 10.167.198.7 |
| 5 | 10.167.198.8/31 | 10.167.198.8 – 10.167.198.9 | 10.167.198.9 |
| 6 | 10.167.198.10/31 | 10.167.198.10 – 10.167.198.11 | 10.167.198.11 |
| 7 | 10.167.198.12/31 | 10.167.198.12 – 10.167.198.13 | 10.167.198.13 |
| 8 | 10.167.198.14/31 | 10.167.198.14 – 10.167.198.15 | 10.167.198.15 |
| 9 | 10.167.198.16/31 | 10.167.198.16 – 10.167.198.17 | 10.167.198.17 |
| 10 | 10.167.198.18/31 | 10.167.198.18 – 10.167.198.19 | 10.167.198.19 |
| 11 | 10.167.198.20/31 | 10.167.198.20 – 10.167.198.21 | 10.167.198.21 |
| 12 | 10.167.198.22/31 | 10.167.198.22 – 10.167.198.23 | 10.167.198.23 |
| 13 | 10.167.198.24/31 | 10.167.198.24 – 10.167.198.25 | 10.167.198.25 |
| 14 | 10.167.198.26/31 | 10.167.198.26 – 10.167.198.27 | 10.167.198.27 |
| 15 | 10.167.198.28/31 | 10.167.198.28 – 10.167.198.29 | 10.167.198.29 |
| 16 | 10.167.198.30/31 | 10.167.198.30 – 10.167.198.31 | 10.167.198.31 |
| 17 | 10.167.198.32/31 | 10.167.198.32 – 10.167.198.33 | 10.167.198.33 |
| 18 | 10.167.198.34/31 | 10.167.198.34 – 10.167.198.35 | 10.167.198.35 |
| 19 | 10.167.198.36/31 | 10.167.198.36 – 10.167.198.37 | 10.167.198.37 |
| 20 | 10.167.198.38/31 | 10.167.198.38 – 10.167.198.39 | 10.167.198.39 |
| 21 | 10.167.198.40/31 | 10.167.198.40 – 10.167.198.41 | 10.167.198.41 |
| 22 | 10.167.198.42/31 | 10.167.198.42 – 10.167.198.43 | 10.167.198.43 |
| 23 | 10.167.198.44/31 | 10.167.198.44 – 10.167.198.45 | 10.167.198.45 |
| 24 | 10.167.198.46/31 | 10.167.198.46 – 10.167.198.47 | 10.167.198.47 |
| 25 | 10.167.198.48/31 | 10.167.198.48 – 10.167.198.49 | 10.167.198.49 |
| 26 | 10.167.198.50/31 | 10.167.198.50 – 10.167.198.51 | 10.167.198.51 |
| 27 | 10.167.198.52/31 | 10.167.198.52 – 10.167.198.53 | 10.167.198.53 |
| 28 | 10.167.198.54/31 | 10.167.198.54 – 10.167.198.55 | 10.167.198.55 |
| 29 | 10.167.198.56/31 | 10.167.198.56 – 10.167.198.57 | 10.167.198.57 |
| 30 | 10.167.198.58/31 | 10.167.198.58 – 10.167.198.59 | 10.167.198.59 |
| 31 | 10.167.198.60/31 | 10.167.198.60 – 10.167.198.61 | 10.167.198.61 |
| 32 | 10.167.198.62/31 | 10.167.198.62 – 10.167.198.63 | 10.167.198.63 |
| 33 | 10.167.198.64/31 | 10.167.198.64 – 10.167.198.65 | 10.167.198.65 |
| 34 | 10.167.198.66/31 | 10.167.198.66 – 10.167.198.67 | 10.167.198.67 |
| 35 | 10.167.198.68/31 | 10.167.198.68 – 10.167.198.69 | 10.167.198.69 |
| 36 | 10.167.198.70/31 | 10.167.198.70 – 10.167.198.71 | 10.167.198.71 |
| 37 | 10.167.198.72/31 | 10.167.198.72 – 10.167.198.73 | 10.167.198.73 |
| 38 | 10.167.198.74/31 | 10.167.198.74 – 10.167.198.75 | 10.167.198.75 |
| 39 | 10.167.198.76/31 | 10.167.198.76 – 10.167.198.77 | 10.167.198.77 |
| 40 | 10.167.198.78/31 | 10.167.198.78 – 10.167.198.79 | 10.167.198.79 |
| 41 | 10.167.198.80/31 | 10.167.198.80 – 10.167.198.81 | 10.167.198.81 |
| 42 | 10.167.198.82/31 | 10.167.198.82 – 10.167.198.83 | 10.167.198.83 |
| 43 | 10.167.198.84/31 | 10.167.198.84 – 10.167.198.85 | 10.167.198.85 |
| 44 | 10.167.198.86/31 | 10.167.198.86 – 10.167.198.87 | 10.167.198.87 |
| 45 | 10.167.198.88/31 | 10.167.198.88 – 10.167.198.89 | 10.167.198.89 |
| 46 | 10.167.198.90/31 | 10.167.198.90 – 10.167.198.91 | 10.167.198.91 |
| 47 | 10.167.198.92/31 | 10.167.198.92 – 10.167.198.93 | 10.167.198.93 |
| 48 | 10.167.198.94/31 | 10.167.198.94 – 10.167.198.95 | 10.167.198.95 |
| 49 | 10.167.198.96/31 | 10.167.198.96 – 10.167.198.97 | 10.167.198.97 |
| 50 | 10.167.198.98/31 | 10.167.198.98 – 10.167.198.99 | 10.167.198.99 |
| 51 | 10.167.198.100/31 | 10.167.198.100 – 10.167.198.101 | 10.167.198.101 |
| 52 | 10.167.198.102/31 | 10.167.198.102 – 10.167.198.103 | 10.167.198.103 |
| 53 | 10.167.198.104/31 | 10.167.198.104 – 10.167.198.105 | 10.167.198.105 |
| 54 | 10.167.198.106/31 | 10.167.198.106 – 10.167.198.107 | 10.167.198.107 |
| 55 | 10.167.198.108/31 | 10.167.198.108 – 10.167.198.109 | 10.167.198.109 |
| 56 | 10.167.198.110/31 | 10.167.198.110 – 10.167.198.111 | 10.167.198.111 |
| 57 | 10.167.198.112/31 | 10.167.198.112 – 10.167.198.113 | 10.167.198.113 |
| 58 | 10.167.198.114/31 | 10.167.198.114 – 10.167.198.115 | 10.167.198.115 |
| 59 | 10.167.198.116/31 | 10.167.198.116 – 10.167.198.117 | 10.167.198.117 |
| 60 | 10.167.198.118/31 | 10.167.198.118 – 10.167.198.119 | 10.167.198.119 |
| 61 | 10.167.198.120/31 | 10.167.198.120 – 10.167.198.121 | 10.167.198.121 |
| 62 | 10.167.198.122/31 | 10.167.198.122 – 10.167.198.123 | 10.167.198.123 |
| 63 | 10.167.198.124/31 | 10.167.198.124 – 10.167.198.125 | 10.167.198.125 |
| 64 | 10.167.198.126/31 | 10.167.198.126 – 10.167.198.127 | 10.167.198.127 |
| 65 | 10.167.198.128/31 | 10.167.198.128 – 10.167.198.129 | 10.167.198.129 |
| 66 | 10.167.198.130/31 | 10.167.198.130 – 10.167.198.131 | 10.167.198.131 |
| 67 | 10.167.198.132/31 | 10.167.198.132 – 10.167.198.133 | 10.167.198.133 |
| 68 | 10.167.198.134/31 | 10.167.198.134 – 10.167.198.135 | 10.167.198.135 |
| 69 | 10.167.198.136/31 | 10.167.198.136 – 10.167.198.137 | 10.167.198.137 |
| 70 | 10.167.198.138/31 | 10.167.198.138 – 10.167.198.139 | 10.167.198.139 |
| 71 | 10.167.198.140/31 | 10.167.198.140 – 10.167.198.141 | 10.167.198.141 |
| 72 | 10.167.198.142/31 | 10.167.198.142 – 10.167.198.143 | 10.167.198.143 |
| 73 | 10.167.198.144/31 | 10.167.198.144 – 10.167.198.145 | 10.167.198.145 |
| 74 | 10.167.198.146/31 | 10.167.198.146 – 10.167.198.147 | 10.167.198.147 |
| 75 | 10.167.198.148/31 | 10.167.198.148 – 10.167.198.149 | 10.167.198.149 |
| 76 | 10.167.198.150/31 | 10.167.198.150 – 10.167.198.151 | 10.167.198.151 |
| 77 | 10.167.198.152/31 | 10.167.198.152 – 10.167.198.153 | 10.167.198.153 |
| 78 | 10.167.198.154/31 | 10.167.198.154 – 10.167.198.155 | 10.167.198.155 |
| 79 | 10.167.198.156/31 | 10.167.198.156 – 10.167.198.157 | 10.167.198.157 |
| 80 | 10.167.198.158/31 | 10.167.198.158 – 10.167.198.159 | 10.167.198.159 |
| 81 | 10.167.198.160/31 | 10.167.198.160 – 10.167.198.161 | 10.167.198.161 |
| 82 | 10.167.198.162/31 | 10.167.198.162 – 10.167.198.163 | 10.167.198.163 |
| 83 | 10.167.198.164/31 | 10.167.198.164 – 10.167.198.165 | 10.167.198.165 |
| 84 | 10.167.198.166/31 | 10.167.198.166 – 10.167.198.167 | 10.167.198.167 |
| 85 | 10.167.198.168/31 | 10.167.198.168 – 10.167.198.169 | 10.167.198.169 |
| 86 | 10.167.198.170/31 | 10.167.198.170 – 10.167.198.171 | 10.167.198.171 |
| 87 | 10.167.198.172/31 | 10.167.198.172 – 10.167.198.173 | 10.167.198.173 |
| 88 | 10.167.198.174/31 | 10.167.198.174 – 10.167.198.175 | 10.167.198.175 |
| 89 | 10.167.198.176/31 | 10.167.198.176 – 10.167.198.177 | 10.167.198.177 |
| 90 | 10.167.198.178/31 | 10.167.198.178 – 10.167.198.179 | 10.167.198.179 |
| 91 | 10.167.198.180/31 | 10.167.198.180 – 10.167.198.181 | 10.167.198.181 |
| 92 | 10.167.198.182/31 | 10.167.198.182 – 10.167.198.183 | 10.167.198.183 |
| 93 | 10.167.198.184/31 | 10.167.198.184 – 10.167.198.185 | 10.167.198.185 |
| 94 | 10.167.198.186/31 | 10.167.198.186 – 10.167.198.187 | 10.167.198.187 |
| 95 | 10.167.198.188/31 | 10.167.198.188 – 10.167.198.189 | 10.167.198.189 |
| 96 | 10.167.198.190/31 | 10.167.198.190 – 10.167.198.191 | 10.167.198.191 |
| 97 | 10.167.198.192/31 | 10.167.198.192 – 10.167.198.193 | 10.167.198.193 |
| 98 | 10.167.198.194/31 | 10.167.198.194 – 10.167.198.195 | 10.167.198.195 |
| 99 | 10.167.198.196/31 | 10.167.198.196 – 10.167.198.197 | 10.167.198.197 |
| 100 | 10.167.198.198/31 | 10.167.198.198 – 10.167.198.199 | 10.167.198.199 |
| 101 | 10.167.198.200/31 | 10.167.198.200 – 10.167.198.201 | 10.167.198.201 |
| 102 | 10.167.198.202/31 | 10.167.198.202 – 10.167.198.203 | 10.167.198.203 |
| 103 | 10.167.198.204/31 | 10.167.198.204 – 10.167.198.205 | 10.167.198.205 |
| 104 | 10.167.198.206/31 | 10.167.198.206 – 10.167.198.207 | 10.167.198.207 |
| 105 | 10.167.198.208/31 | 10.167.198.208 – 10.167.198.209 | 10.167.198.209 |
| 106 | 10.167.198.210/31 | 10.167.198.210 – 10.167.198.211 | 10.167.198.211 |
| 107 | 10.167.198.212/31 | 10.167.198.212 – 10.167.198.213 | 10.167.198.213 |
| 108 | 10.167.198.214/31 | 10.167.198.214 – 10.167.198.215 | 10.167.198.215 |
| 109 | 10.167.198.216/31 | 10.167.198.216 – 10.167.198.217 | 10.167.198.217 |
| 110 | 10.167.198.218/31 | 10.167.198.218 – 10.167.198.219 | 10.167.198.219 |
| 111 | 10.167.198.220/31 | 10.167.198.220 – 10.167.198.221 | 10.167.198.221 |
| 112 | 10.167.198.222/31 | 10.167.198.222 – 10.167.198.223 | 10.167.198.223 |
| 113 | 10.167.198.224/31 | 10.167.198.224 – 10.167.198.225 | 10.167.198.225 |
| 114 | 10.167.198.226/31 | 10.167.198.226 – 10.167.198.227 | 10.167.198.227 |
| 115 | 10.167.198.228/31 | 10.167.198.228 – 10.167.198.229 | 10.167.198.229 |
| 116 | 10.167.198.230/31 | 10.167.198.230 – 10.167.198.231 | 10.167.198.231 |
| 117 | 10.167.198.232/31 | 10.167.198.232 – 10.167.198.233 | 10.167.198.233 |
| 118 | 10.167.198.234/31 | 10.167.198.234 – 10.167.198.235 | 10.167.198.235 |
| 119 | 10.167.198.236/31 | 10.167.198.236 – 10.167.198.237 | 10.167.198.237 |
| 120 | 10.167.198.238/31 | 10.167.198.238 – 10.167.198.239 | 10.167.198.239 |
| 121 | 10.167.198.240/31 | 10.167.198.240 – 10.167.198.241 | 10.167.198.241 |
| 122 | 10.167.198.242/31 | 10.167.198.242 – 10.167.198.243 | 10.167.198.243 |
| 123 | 10.167.198.244/31 | 10.167.198.244 – 10.167.198.245 | 10.167.198.245 |
| 124 | 10.167.198.246/31 | 10.167.198.246 – 10.167.198.247 | 10.167.198.247 |
| 125 | 10.167.198.248/31 | 10.167.198.248 – 10.167.198.249 | 10.167.198.249 |
| 126 | 10.167.198.250/31 | 10.167.198.250 – 10.167.198.251 | 10.167.198.251 |
| 127 | 10.167.198.252/31 | 10.167.198.252 – 10.167.198.253 | 10.167.198.253 |
| 128 | 10.167.198.254/31 | 10.167.198.254 – 10.167.198.255 | 10.167.198.255 |
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 /24 |
|---|---|---|---|---|
| /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 | - |
| /24 | 255.255.255.0 | 256 | 254 | 1 |
| /25 | 255.255.255.128 | 128 | 126 | 2 split → |
| /26 | 255.255.255.192 | 64 | 62 | 4 split → |
| /27 | 255.255.255.224 | 32 | 30 | 8 split → |
| /28 | 255.255.255.240 | 16 | 14 | 16 split → |
| /29 | 255.255.255.248 | 8 | 6 | 32 split → |
| /30 | 255.255.255.252 | 4 | 2 | 64 split → |
| /31 | 255.255.255.254 | 2 | 2 | 128 split → |
| /32 | 255.255.255.255 | 1 | 1 | 256 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.