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)10.231.16.0/22
network10.231.16.0/22
broadcast10.231.19.255
first host10.231.16.1
last host10.231.19.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.231.16.0/22
address00001010.11100111.00010000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.11100111.00010000.00000000
broadcast00001010.11100111.00010011.11111111
green = network part, grey = host part
hex0x0ae71000
decimal182915072
reverse dns0.16.231.10.in-addr.arpa
ipv4-mapped::ffff:ae7:1000
/22 split into /30 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.231.16.0/30 | 10.231.16.1 – 10.231.16.2 | 10.231.16.3 |
| 2 | 10.231.16.4/30 | 10.231.16.5 – 10.231.16.6 | 10.231.16.7 |
| 3 | 10.231.16.8/30 | 10.231.16.9 – 10.231.16.10 | 10.231.16.11 |
| 4 | 10.231.16.12/30 | 10.231.16.13 – 10.231.16.14 | 10.231.16.15 |
| 5 | 10.231.16.16/30 | 10.231.16.17 – 10.231.16.18 | 10.231.16.19 |
| 6 | 10.231.16.20/30 | 10.231.16.21 – 10.231.16.22 | 10.231.16.23 |
| 7 | 10.231.16.24/30 | 10.231.16.25 – 10.231.16.26 | 10.231.16.27 |
| 8 | 10.231.16.28/30 | 10.231.16.29 – 10.231.16.30 | 10.231.16.31 |
| 9 | 10.231.16.32/30 | 10.231.16.33 – 10.231.16.34 | 10.231.16.35 |
| 10 | 10.231.16.36/30 | 10.231.16.37 – 10.231.16.38 | 10.231.16.39 |
| 11 | 10.231.16.40/30 | 10.231.16.41 – 10.231.16.42 | 10.231.16.43 |
| 12 | 10.231.16.44/30 | 10.231.16.45 – 10.231.16.46 | 10.231.16.47 |
| 13 | 10.231.16.48/30 | 10.231.16.49 – 10.231.16.50 | 10.231.16.51 |
| 14 | 10.231.16.52/30 | 10.231.16.53 – 10.231.16.54 | 10.231.16.55 |
| 15 | 10.231.16.56/30 | 10.231.16.57 – 10.231.16.58 | 10.231.16.59 |
| 16 | 10.231.16.60/30 | 10.231.16.61 – 10.231.16.62 | 10.231.16.63 |
| 17 | 10.231.16.64/30 | 10.231.16.65 – 10.231.16.66 | 10.231.16.67 |
| 18 | 10.231.16.68/30 | 10.231.16.69 – 10.231.16.70 | 10.231.16.71 |
| 19 | 10.231.16.72/30 | 10.231.16.73 – 10.231.16.74 | 10.231.16.75 |
| 20 | 10.231.16.76/30 | 10.231.16.77 – 10.231.16.78 | 10.231.16.79 |
| 21 | 10.231.16.80/30 | 10.231.16.81 – 10.231.16.82 | 10.231.16.83 |
| 22 | 10.231.16.84/30 | 10.231.16.85 – 10.231.16.86 | 10.231.16.87 |
| 23 | 10.231.16.88/30 | 10.231.16.89 – 10.231.16.90 | 10.231.16.91 |
| 24 | 10.231.16.92/30 | 10.231.16.93 – 10.231.16.94 | 10.231.16.95 |
| 25 | 10.231.16.96/30 | 10.231.16.97 – 10.231.16.98 | 10.231.16.99 |
| 26 | 10.231.16.100/30 | 10.231.16.101 – 10.231.16.102 | 10.231.16.103 |
| 27 | 10.231.16.104/30 | 10.231.16.105 – 10.231.16.106 | 10.231.16.107 |
| 28 | 10.231.16.108/30 | 10.231.16.109 – 10.231.16.110 | 10.231.16.111 |
| 29 | 10.231.16.112/30 | 10.231.16.113 – 10.231.16.114 | 10.231.16.115 |
| 30 | 10.231.16.116/30 | 10.231.16.117 – 10.231.16.118 | 10.231.16.119 |
| 31 | 10.231.16.120/30 | 10.231.16.121 – 10.231.16.122 | 10.231.16.123 |
| 32 | 10.231.16.124/30 | 10.231.16.125 – 10.231.16.126 | 10.231.16.127 |
| 33 | 10.231.16.128/30 | 10.231.16.129 – 10.231.16.130 | 10.231.16.131 |
| 34 | 10.231.16.132/30 | 10.231.16.133 – 10.231.16.134 | 10.231.16.135 |
| 35 | 10.231.16.136/30 | 10.231.16.137 – 10.231.16.138 | 10.231.16.139 |
| 36 | 10.231.16.140/30 | 10.231.16.141 – 10.231.16.142 | 10.231.16.143 |
| 37 | 10.231.16.144/30 | 10.231.16.145 – 10.231.16.146 | 10.231.16.147 |
| 38 | 10.231.16.148/30 | 10.231.16.149 – 10.231.16.150 | 10.231.16.151 |
| 39 | 10.231.16.152/30 | 10.231.16.153 – 10.231.16.154 | 10.231.16.155 |
| 40 | 10.231.16.156/30 | 10.231.16.157 – 10.231.16.158 | 10.231.16.159 |
| 41 | 10.231.16.160/30 | 10.231.16.161 – 10.231.16.162 | 10.231.16.163 |
| 42 | 10.231.16.164/30 | 10.231.16.165 – 10.231.16.166 | 10.231.16.167 |
| 43 | 10.231.16.168/30 | 10.231.16.169 – 10.231.16.170 | 10.231.16.171 |
| 44 | 10.231.16.172/30 | 10.231.16.173 – 10.231.16.174 | 10.231.16.175 |
| 45 | 10.231.16.176/30 | 10.231.16.177 – 10.231.16.178 | 10.231.16.179 |
| 46 | 10.231.16.180/30 | 10.231.16.181 – 10.231.16.182 | 10.231.16.183 |
| 47 | 10.231.16.184/30 | 10.231.16.185 – 10.231.16.186 | 10.231.16.187 |
| 48 | 10.231.16.188/30 | 10.231.16.189 – 10.231.16.190 | 10.231.16.191 |
| 49 | 10.231.16.192/30 | 10.231.16.193 – 10.231.16.194 | 10.231.16.195 |
| 50 | 10.231.16.196/30 | 10.231.16.197 – 10.231.16.198 | 10.231.16.199 |
| 51 | 10.231.16.200/30 | 10.231.16.201 – 10.231.16.202 | 10.231.16.203 |
| 52 | 10.231.16.204/30 | 10.231.16.205 – 10.231.16.206 | 10.231.16.207 |
| 53 | 10.231.16.208/30 | 10.231.16.209 – 10.231.16.210 | 10.231.16.211 |
| 54 | 10.231.16.212/30 | 10.231.16.213 – 10.231.16.214 | 10.231.16.215 |
| 55 | 10.231.16.216/30 | 10.231.16.217 – 10.231.16.218 | 10.231.16.219 |
| 56 | 10.231.16.220/30 | 10.231.16.221 – 10.231.16.222 | 10.231.16.223 |
| 57 | 10.231.16.224/30 | 10.231.16.225 – 10.231.16.226 | 10.231.16.227 |
| 58 | 10.231.16.228/30 | 10.231.16.229 – 10.231.16.230 | 10.231.16.231 |
| 59 | 10.231.16.232/30 | 10.231.16.233 – 10.231.16.234 | 10.231.16.235 |
| 60 | 10.231.16.236/30 | 10.231.16.237 – 10.231.16.238 | 10.231.16.239 |
| 61 | 10.231.16.240/30 | 10.231.16.241 – 10.231.16.242 | 10.231.16.243 |
| 62 | 10.231.16.244/30 | 10.231.16.245 – 10.231.16.246 | 10.231.16.247 |
| 63 | 10.231.16.248/30 | 10.231.16.249 – 10.231.16.250 | 10.231.16.251 |
| 64 | 10.231.16.252/30 | 10.231.16.253 – 10.231.16.254 | 10.231.16.255 |
| 65 | 10.231.17.0/30 | 10.231.17.1 – 10.231.17.2 | 10.231.17.3 |
| 66 | 10.231.17.4/30 | 10.231.17.5 – 10.231.17.6 | 10.231.17.7 |
| 67 | 10.231.17.8/30 | 10.231.17.9 – 10.231.17.10 | 10.231.17.11 |
| 68 | 10.231.17.12/30 | 10.231.17.13 – 10.231.17.14 | 10.231.17.15 |
| 69 | 10.231.17.16/30 | 10.231.17.17 – 10.231.17.18 | 10.231.17.19 |
| 70 | 10.231.17.20/30 | 10.231.17.21 – 10.231.17.22 | 10.231.17.23 |
| 71 | 10.231.17.24/30 | 10.231.17.25 – 10.231.17.26 | 10.231.17.27 |
| 72 | 10.231.17.28/30 | 10.231.17.29 – 10.231.17.30 | 10.231.17.31 |
| 73 | 10.231.17.32/30 | 10.231.17.33 – 10.231.17.34 | 10.231.17.35 |
| 74 | 10.231.17.36/30 | 10.231.17.37 – 10.231.17.38 | 10.231.17.39 |
| 75 | 10.231.17.40/30 | 10.231.17.41 – 10.231.17.42 | 10.231.17.43 |
| 76 | 10.231.17.44/30 | 10.231.17.45 – 10.231.17.46 | 10.231.17.47 |
| 77 | 10.231.17.48/30 | 10.231.17.49 – 10.231.17.50 | 10.231.17.51 |
| 78 | 10.231.17.52/30 | 10.231.17.53 – 10.231.17.54 | 10.231.17.55 |
| 79 | 10.231.17.56/30 | 10.231.17.57 – 10.231.17.58 | 10.231.17.59 |
| 80 | 10.231.17.60/30 | 10.231.17.61 – 10.231.17.62 | 10.231.17.63 |
| 81 | 10.231.17.64/30 | 10.231.17.65 – 10.231.17.66 | 10.231.17.67 |
| 82 | 10.231.17.68/30 | 10.231.17.69 – 10.231.17.70 | 10.231.17.71 |
| 83 | 10.231.17.72/30 | 10.231.17.73 – 10.231.17.74 | 10.231.17.75 |
| 84 | 10.231.17.76/30 | 10.231.17.77 – 10.231.17.78 | 10.231.17.79 |
| 85 | 10.231.17.80/30 | 10.231.17.81 – 10.231.17.82 | 10.231.17.83 |
| 86 | 10.231.17.84/30 | 10.231.17.85 – 10.231.17.86 | 10.231.17.87 |
| 87 | 10.231.17.88/30 | 10.231.17.89 – 10.231.17.90 | 10.231.17.91 |
| 88 | 10.231.17.92/30 | 10.231.17.93 – 10.231.17.94 | 10.231.17.95 |
| 89 | 10.231.17.96/30 | 10.231.17.97 – 10.231.17.98 | 10.231.17.99 |
| 90 | 10.231.17.100/30 | 10.231.17.101 – 10.231.17.102 | 10.231.17.103 |
| 91 | 10.231.17.104/30 | 10.231.17.105 – 10.231.17.106 | 10.231.17.107 |
| 92 | 10.231.17.108/30 | 10.231.17.109 – 10.231.17.110 | 10.231.17.111 |
| 93 | 10.231.17.112/30 | 10.231.17.113 – 10.231.17.114 | 10.231.17.115 |
| 94 | 10.231.17.116/30 | 10.231.17.117 – 10.231.17.118 | 10.231.17.119 |
| 95 | 10.231.17.120/30 | 10.231.17.121 – 10.231.17.122 | 10.231.17.123 |
| 96 | 10.231.17.124/30 | 10.231.17.125 – 10.231.17.126 | 10.231.17.127 |
| 97 | 10.231.17.128/30 | 10.231.17.129 – 10.231.17.130 | 10.231.17.131 |
| 98 | 10.231.17.132/30 | 10.231.17.133 – 10.231.17.134 | 10.231.17.135 |
| 99 | 10.231.17.136/30 | 10.231.17.137 – 10.231.17.138 | 10.231.17.139 |
| 100 | 10.231.17.140/30 | 10.231.17.141 – 10.231.17.142 | 10.231.17.143 |
| 101 | 10.231.17.144/30 | 10.231.17.145 – 10.231.17.146 | 10.231.17.147 |
| 102 | 10.231.17.148/30 | 10.231.17.149 – 10.231.17.150 | 10.231.17.151 |
| 103 | 10.231.17.152/30 | 10.231.17.153 – 10.231.17.154 | 10.231.17.155 |
| 104 | 10.231.17.156/30 | 10.231.17.157 – 10.231.17.158 | 10.231.17.159 |
| 105 | 10.231.17.160/30 | 10.231.17.161 – 10.231.17.162 | 10.231.17.163 |
| 106 | 10.231.17.164/30 | 10.231.17.165 – 10.231.17.166 | 10.231.17.167 |
| 107 | 10.231.17.168/30 | 10.231.17.169 – 10.231.17.170 | 10.231.17.171 |
| 108 | 10.231.17.172/30 | 10.231.17.173 – 10.231.17.174 | 10.231.17.175 |
| 109 | 10.231.17.176/30 | 10.231.17.177 – 10.231.17.178 | 10.231.17.179 |
| 110 | 10.231.17.180/30 | 10.231.17.181 – 10.231.17.182 | 10.231.17.183 |
| 111 | 10.231.17.184/30 | 10.231.17.185 – 10.231.17.186 | 10.231.17.187 |
| 112 | 10.231.17.188/30 | 10.231.17.189 – 10.231.17.190 | 10.231.17.191 |
| 113 | 10.231.17.192/30 | 10.231.17.193 – 10.231.17.194 | 10.231.17.195 |
| 114 | 10.231.17.196/30 | 10.231.17.197 – 10.231.17.198 | 10.231.17.199 |
| 115 | 10.231.17.200/30 | 10.231.17.201 – 10.231.17.202 | 10.231.17.203 |
| 116 | 10.231.17.204/30 | 10.231.17.205 – 10.231.17.206 | 10.231.17.207 |
| 117 | 10.231.17.208/30 | 10.231.17.209 – 10.231.17.210 | 10.231.17.211 |
| 118 | 10.231.17.212/30 | 10.231.17.213 – 10.231.17.214 | 10.231.17.215 |
| 119 | 10.231.17.216/30 | 10.231.17.217 – 10.231.17.218 | 10.231.17.219 |
| 120 | 10.231.17.220/30 | 10.231.17.221 – 10.231.17.222 | 10.231.17.223 |
| 121 | 10.231.17.224/30 | 10.231.17.225 – 10.231.17.226 | 10.231.17.227 |
| 122 | 10.231.17.228/30 | 10.231.17.229 – 10.231.17.230 | 10.231.17.231 |
| 123 | 10.231.17.232/30 | 10.231.17.233 – 10.231.17.234 | 10.231.17.235 |
| 124 | 10.231.17.236/30 | 10.231.17.237 – 10.231.17.238 | 10.231.17.239 |
| 125 | 10.231.17.240/30 | 10.231.17.241 – 10.231.17.242 | 10.231.17.243 |
| 126 | 10.231.17.244/30 | 10.231.17.245 – 10.231.17.246 | 10.231.17.247 |
| 127 | 10.231.17.248/30 | 10.231.17.249 – 10.231.17.250 | 10.231.17.251 |
| 128 | 10.231.17.252/30 | 10.231.17.253 – 10.231.17.254 | 10.231.17.255 |
| 129 | 10.231.18.0/30 | 10.231.18.1 – 10.231.18.2 | 10.231.18.3 |
| 130 | 10.231.18.4/30 | 10.231.18.5 – 10.231.18.6 | 10.231.18.7 |
| 131 | 10.231.18.8/30 | 10.231.18.9 – 10.231.18.10 | 10.231.18.11 |
| 132 | 10.231.18.12/30 | 10.231.18.13 – 10.231.18.14 | 10.231.18.15 |
| 133 | 10.231.18.16/30 | 10.231.18.17 – 10.231.18.18 | 10.231.18.19 |
| 134 | 10.231.18.20/30 | 10.231.18.21 – 10.231.18.22 | 10.231.18.23 |
| 135 | 10.231.18.24/30 | 10.231.18.25 – 10.231.18.26 | 10.231.18.27 |
| 136 | 10.231.18.28/30 | 10.231.18.29 – 10.231.18.30 | 10.231.18.31 |
| 137 | 10.231.18.32/30 | 10.231.18.33 – 10.231.18.34 | 10.231.18.35 |
| 138 | 10.231.18.36/30 | 10.231.18.37 – 10.231.18.38 | 10.231.18.39 |
| 139 | 10.231.18.40/30 | 10.231.18.41 – 10.231.18.42 | 10.231.18.43 |
| 140 | 10.231.18.44/30 | 10.231.18.45 – 10.231.18.46 | 10.231.18.47 |
| 141 | 10.231.18.48/30 | 10.231.18.49 – 10.231.18.50 | 10.231.18.51 |
| 142 | 10.231.18.52/30 | 10.231.18.53 – 10.231.18.54 | 10.231.18.55 |
| 143 | 10.231.18.56/30 | 10.231.18.57 – 10.231.18.58 | 10.231.18.59 |
| 144 | 10.231.18.60/30 | 10.231.18.61 – 10.231.18.62 | 10.231.18.63 |
| 145 | 10.231.18.64/30 | 10.231.18.65 – 10.231.18.66 | 10.231.18.67 |
| 146 | 10.231.18.68/30 | 10.231.18.69 – 10.231.18.70 | 10.231.18.71 |
| 147 | 10.231.18.72/30 | 10.231.18.73 – 10.231.18.74 | 10.231.18.75 |
| 148 | 10.231.18.76/30 | 10.231.18.77 – 10.231.18.78 | 10.231.18.79 |
| 149 | 10.231.18.80/30 | 10.231.18.81 – 10.231.18.82 | 10.231.18.83 |
| 150 | 10.231.18.84/30 | 10.231.18.85 – 10.231.18.86 | 10.231.18.87 |
| 151 | 10.231.18.88/30 | 10.231.18.89 – 10.231.18.90 | 10.231.18.91 |
| 152 | 10.231.18.92/30 | 10.231.18.93 – 10.231.18.94 | 10.231.18.95 |
| 153 | 10.231.18.96/30 | 10.231.18.97 – 10.231.18.98 | 10.231.18.99 |
| 154 | 10.231.18.100/30 | 10.231.18.101 – 10.231.18.102 | 10.231.18.103 |
| 155 | 10.231.18.104/30 | 10.231.18.105 – 10.231.18.106 | 10.231.18.107 |
| 156 | 10.231.18.108/30 | 10.231.18.109 – 10.231.18.110 | 10.231.18.111 |
| 157 | 10.231.18.112/30 | 10.231.18.113 – 10.231.18.114 | 10.231.18.115 |
| 158 | 10.231.18.116/30 | 10.231.18.117 – 10.231.18.118 | 10.231.18.119 |
| 159 | 10.231.18.120/30 | 10.231.18.121 – 10.231.18.122 | 10.231.18.123 |
| 160 | 10.231.18.124/30 | 10.231.18.125 – 10.231.18.126 | 10.231.18.127 |
| 161 | 10.231.18.128/30 | 10.231.18.129 – 10.231.18.130 | 10.231.18.131 |
| 162 | 10.231.18.132/30 | 10.231.18.133 – 10.231.18.134 | 10.231.18.135 |
| 163 | 10.231.18.136/30 | 10.231.18.137 – 10.231.18.138 | 10.231.18.139 |
| 164 | 10.231.18.140/30 | 10.231.18.141 – 10.231.18.142 | 10.231.18.143 |
| 165 | 10.231.18.144/30 | 10.231.18.145 – 10.231.18.146 | 10.231.18.147 |
| 166 | 10.231.18.148/30 | 10.231.18.149 – 10.231.18.150 | 10.231.18.151 |
| 167 | 10.231.18.152/30 | 10.231.18.153 – 10.231.18.154 | 10.231.18.155 |
| 168 | 10.231.18.156/30 | 10.231.18.157 – 10.231.18.158 | 10.231.18.159 |
| 169 | 10.231.18.160/30 | 10.231.18.161 – 10.231.18.162 | 10.231.18.163 |
| 170 | 10.231.18.164/30 | 10.231.18.165 – 10.231.18.166 | 10.231.18.167 |
| 171 | 10.231.18.168/30 | 10.231.18.169 – 10.231.18.170 | 10.231.18.171 |
| 172 | 10.231.18.172/30 | 10.231.18.173 – 10.231.18.174 | 10.231.18.175 |
| 173 | 10.231.18.176/30 | 10.231.18.177 – 10.231.18.178 | 10.231.18.179 |
| 174 | 10.231.18.180/30 | 10.231.18.181 – 10.231.18.182 | 10.231.18.183 |
| 175 | 10.231.18.184/30 | 10.231.18.185 – 10.231.18.186 | 10.231.18.187 |
| 176 | 10.231.18.188/30 | 10.231.18.189 – 10.231.18.190 | 10.231.18.191 |
| 177 | 10.231.18.192/30 | 10.231.18.193 – 10.231.18.194 | 10.231.18.195 |
| 178 | 10.231.18.196/30 | 10.231.18.197 – 10.231.18.198 | 10.231.18.199 |
| 179 | 10.231.18.200/30 | 10.231.18.201 – 10.231.18.202 | 10.231.18.203 |
| 180 | 10.231.18.204/30 | 10.231.18.205 – 10.231.18.206 | 10.231.18.207 |
| 181 | 10.231.18.208/30 | 10.231.18.209 – 10.231.18.210 | 10.231.18.211 |
| 182 | 10.231.18.212/30 | 10.231.18.213 – 10.231.18.214 | 10.231.18.215 |
| 183 | 10.231.18.216/30 | 10.231.18.217 – 10.231.18.218 | 10.231.18.219 |
| 184 | 10.231.18.220/30 | 10.231.18.221 – 10.231.18.222 | 10.231.18.223 |
| 185 | 10.231.18.224/30 | 10.231.18.225 – 10.231.18.226 | 10.231.18.227 |
| 186 | 10.231.18.228/30 | 10.231.18.229 – 10.231.18.230 | 10.231.18.231 |
| 187 | 10.231.18.232/30 | 10.231.18.233 – 10.231.18.234 | 10.231.18.235 |
| 188 | 10.231.18.236/30 | 10.231.18.237 – 10.231.18.238 | 10.231.18.239 |
| 189 | 10.231.18.240/30 | 10.231.18.241 – 10.231.18.242 | 10.231.18.243 |
| 190 | 10.231.18.244/30 | 10.231.18.245 – 10.231.18.246 | 10.231.18.247 |
| 191 | 10.231.18.248/30 | 10.231.18.249 – 10.231.18.250 | 10.231.18.251 |
| 192 | 10.231.18.252/30 | 10.231.18.253 – 10.231.18.254 | 10.231.18.255 |
| 193 | 10.231.19.0/30 | 10.231.19.1 – 10.231.19.2 | 10.231.19.3 |
| 194 | 10.231.19.4/30 | 10.231.19.5 – 10.231.19.6 | 10.231.19.7 |
| 195 | 10.231.19.8/30 | 10.231.19.9 – 10.231.19.10 | 10.231.19.11 |
| 196 | 10.231.19.12/30 | 10.231.19.13 – 10.231.19.14 | 10.231.19.15 |
| 197 | 10.231.19.16/30 | 10.231.19.17 – 10.231.19.18 | 10.231.19.19 |
| 198 | 10.231.19.20/30 | 10.231.19.21 – 10.231.19.22 | 10.231.19.23 |
| 199 | 10.231.19.24/30 | 10.231.19.25 – 10.231.19.26 | 10.231.19.27 |
| 200 | 10.231.19.28/30 | 10.231.19.29 – 10.231.19.30 | 10.231.19.31 |
| 201 | 10.231.19.32/30 | 10.231.19.33 – 10.231.19.34 | 10.231.19.35 |
| 202 | 10.231.19.36/30 | 10.231.19.37 – 10.231.19.38 | 10.231.19.39 |
| 203 | 10.231.19.40/30 | 10.231.19.41 – 10.231.19.42 | 10.231.19.43 |
| 204 | 10.231.19.44/30 | 10.231.19.45 – 10.231.19.46 | 10.231.19.47 |
| 205 | 10.231.19.48/30 | 10.231.19.49 – 10.231.19.50 | 10.231.19.51 |
| 206 | 10.231.19.52/30 | 10.231.19.53 – 10.231.19.54 | 10.231.19.55 |
| 207 | 10.231.19.56/30 | 10.231.19.57 – 10.231.19.58 | 10.231.19.59 |
| 208 | 10.231.19.60/30 | 10.231.19.61 – 10.231.19.62 | 10.231.19.63 |
| 209 | 10.231.19.64/30 | 10.231.19.65 – 10.231.19.66 | 10.231.19.67 |
| 210 | 10.231.19.68/30 | 10.231.19.69 – 10.231.19.70 | 10.231.19.71 |
| 211 | 10.231.19.72/30 | 10.231.19.73 – 10.231.19.74 | 10.231.19.75 |
| 212 | 10.231.19.76/30 | 10.231.19.77 – 10.231.19.78 | 10.231.19.79 |
| 213 | 10.231.19.80/30 | 10.231.19.81 – 10.231.19.82 | 10.231.19.83 |
| 214 | 10.231.19.84/30 | 10.231.19.85 – 10.231.19.86 | 10.231.19.87 |
| 215 | 10.231.19.88/30 | 10.231.19.89 – 10.231.19.90 | 10.231.19.91 |
| 216 | 10.231.19.92/30 | 10.231.19.93 – 10.231.19.94 | 10.231.19.95 |
| 217 | 10.231.19.96/30 | 10.231.19.97 – 10.231.19.98 | 10.231.19.99 |
| 218 | 10.231.19.100/30 | 10.231.19.101 – 10.231.19.102 | 10.231.19.103 |
| 219 | 10.231.19.104/30 | 10.231.19.105 – 10.231.19.106 | 10.231.19.107 |
| 220 | 10.231.19.108/30 | 10.231.19.109 – 10.231.19.110 | 10.231.19.111 |
| 221 | 10.231.19.112/30 | 10.231.19.113 – 10.231.19.114 | 10.231.19.115 |
| 222 | 10.231.19.116/30 | 10.231.19.117 – 10.231.19.118 | 10.231.19.119 |
| 223 | 10.231.19.120/30 | 10.231.19.121 – 10.231.19.122 | 10.231.19.123 |
| 224 | 10.231.19.124/30 | 10.231.19.125 – 10.231.19.126 | 10.231.19.127 |
| 225 | 10.231.19.128/30 | 10.231.19.129 – 10.231.19.130 | 10.231.19.131 |
| 226 | 10.231.19.132/30 | 10.231.19.133 – 10.231.19.134 | 10.231.19.135 |
| 227 | 10.231.19.136/30 | 10.231.19.137 – 10.231.19.138 | 10.231.19.139 |
| 228 | 10.231.19.140/30 | 10.231.19.141 – 10.231.19.142 | 10.231.19.143 |
| 229 | 10.231.19.144/30 | 10.231.19.145 – 10.231.19.146 | 10.231.19.147 |
| 230 | 10.231.19.148/30 | 10.231.19.149 – 10.231.19.150 | 10.231.19.151 |
| 231 | 10.231.19.152/30 | 10.231.19.153 – 10.231.19.154 | 10.231.19.155 |
| 232 | 10.231.19.156/30 | 10.231.19.157 – 10.231.19.158 | 10.231.19.159 |
| 233 | 10.231.19.160/30 | 10.231.19.161 – 10.231.19.162 | 10.231.19.163 |
| 234 | 10.231.19.164/30 | 10.231.19.165 – 10.231.19.166 | 10.231.19.167 |
| 235 | 10.231.19.168/30 | 10.231.19.169 – 10.231.19.170 | 10.231.19.171 |
| 236 | 10.231.19.172/30 | 10.231.19.173 – 10.231.19.174 | 10.231.19.175 |
| 237 | 10.231.19.176/30 | 10.231.19.177 – 10.231.19.178 | 10.231.19.179 |
| 238 | 10.231.19.180/30 | 10.231.19.181 – 10.231.19.182 | 10.231.19.183 |
| 239 | 10.231.19.184/30 | 10.231.19.185 – 10.231.19.186 | 10.231.19.187 |
| 240 | 10.231.19.188/30 | 10.231.19.189 – 10.231.19.190 | 10.231.19.191 |
| 241 | 10.231.19.192/30 | 10.231.19.193 – 10.231.19.194 | 10.231.19.195 |
| 242 | 10.231.19.196/30 | 10.231.19.197 – 10.231.19.198 | 10.231.19.199 |
| 243 | 10.231.19.200/30 | 10.231.19.201 – 10.231.19.202 | 10.231.19.203 |
| 244 | 10.231.19.204/30 | 10.231.19.205 – 10.231.19.206 | 10.231.19.207 |
| 245 | 10.231.19.208/30 | 10.231.19.209 – 10.231.19.210 | 10.231.19.211 |
| 246 | 10.231.19.212/30 | 10.231.19.213 – 10.231.19.214 | 10.231.19.215 |
| 247 | 10.231.19.216/30 | 10.231.19.217 – 10.231.19.218 | 10.231.19.219 |
| 248 | 10.231.19.220/30 | 10.231.19.221 – 10.231.19.222 | 10.231.19.223 |
| 249 | 10.231.19.224/30 | 10.231.19.225 – 10.231.19.226 | 10.231.19.227 |
| 250 | 10.231.19.228/30 | 10.231.19.229 – 10.231.19.230 | 10.231.19.231 |
| 251 | 10.231.19.232/30 | 10.231.19.233 – 10.231.19.234 | 10.231.19.235 |
| 252 | 10.231.19.236/30 | 10.231.19.237 – 10.231.19.238 | 10.231.19.239 |
| 253 | 10.231.19.240/30 | 10.231.19.241 – 10.231.19.242 | 10.231.19.243 |
| 254 | 10.231.19.244/30 | 10.231.19.245 – 10.231.19.246 | 10.231.19.247 |
| 255 | 10.231.19.248/30 | 10.231.19.249 – 10.231.19.250 | 10.231.19.251 |
| 256 | 10.231.19.252/30 | 10.231.19.253 – 10.231.19.254 | 10.231.19.255 |
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 /22 |
|---|---|---|---|---|
| /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 | 1 |
| /23 | 255.255.254.0 | 512 | 510 | 2 split → |
| /24 | 255.255.255.0 | 256 | 254 | 4 split → |
| /25 | 255.255.255.128 | 128 | 126 | 8 split → |
| /26 | 255.255.255.192 | 64 | 62 | 16 split → |
| /27 | 255.255.255.224 | 32 | 30 | 32 split → |
| /28 | 255.255.255.240 | 16 | 14 | 64 split → |
| /29 | 255.255.255.248 | 8 | 6 | 128 split → |
| /30 | 255.255.255.252 | 4 | 2 | 256 split → |
| /31 | 255.255.255.254 | 2 | 2 | 512 split → |
| /32 | 255.255.255.255 | 1 | 1 | 1,024 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.