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)10.166.236.0/22
network10.166.236.0/22
broadcast10.166.239.255
first host10.166.236.1
last host10.166.239.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.166.236.0/22
address00001010.10100110.11101100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.10100110.11101100.00000000
broadcast00001010.10100110.11101111.11111111
green = network part, grey = host part
hex0x0aa6ec00
decimal178711552
reverse dns0.236.166.10.in-addr.arpa
ipv4-mapped::ffff:aa6:ec00
/22 split into /30 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.166.236.0/30 | 10.166.236.1 – 10.166.236.2 | 10.166.236.3 |
| 2 | 10.166.236.4/30 | 10.166.236.5 – 10.166.236.6 | 10.166.236.7 |
| 3 | 10.166.236.8/30 | 10.166.236.9 – 10.166.236.10 | 10.166.236.11 |
| 4 | 10.166.236.12/30 | 10.166.236.13 – 10.166.236.14 | 10.166.236.15 |
| 5 | 10.166.236.16/30 | 10.166.236.17 – 10.166.236.18 | 10.166.236.19 |
| 6 | 10.166.236.20/30 | 10.166.236.21 – 10.166.236.22 | 10.166.236.23 |
| 7 | 10.166.236.24/30 | 10.166.236.25 – 10.166.236.26 | 10.166.236.27 |
| 8 | 10.166.236.28/30 | 10.166.236.29 – 10.166.236.30 | 10.166.236.31 |
| 9 | 10.166.236.32/30 | 10.166.236.33 – 10.166.236.34 | 10.166.236.35 |
| 10 | 10.166.236.36/30 | 10.166.236.37 – 10.166.236.38 | 10.166.236.39 |
| 11 | 10.166.236.40/30 | 10.166.236.41 – 10.166.236.42 | 10.166.236.43 |
| 12 | 10.166.236.44/30 | 10.166.236.45 – 10.166.236.46 | 10.166.236.47 |
| 13 | 10.166.236.48/30 | 10.166.236.49 – 10.166.236.50 | 10.166.236.51 |
| 14 | 10.166.236.52/30 | 10.166.236.53 – 10.166.236.54 | 10.166.236.55 |
| 15 | 10.166.236.56/30 | 10.166.236.57 – 10.166.236.58 | 10.166.236.59 |
| 16 | 10.166.236.60/30 | 10.166.236.61 – 10.166.236.62 | 10.166.236.63 |
| 17 | 10.166.236.64/30 | 10.166.236.65 – 10.166.236.66 | 10.166.236.67 |
| 18 | 10.166.236.68/30 | 10.166.236.69 – 10.166.236.70 | 10.166.236.71 |
| 19 | 10.166.236.72/30 | 10.166.236.73 – 10.166.236.74 | 10.166.236.75 |
| 20 | 10.166.236.76/30 | 10.166.236.77 – 10.166.236.78 | 10.166.236.79 |
| 21 | 10.166.236.80/30 | 10.166.236.81 – 10.166.236.82 | 10.166.236.83 |
| 22 | 10.166.236.84/30 | 10.166.236.85 – 10.166.236.86 | 10.166.236.87 |
| 23 | 10.166.236.88/30 | 10.166.236.89 – 10.166.236.90 | 10.166.236.91 |
| 24 | 10.166.236.92/30 | 10.166.236.93 – 10.166.236.94 | 10.166.236.95 |
| 25 | 10.166.236.96/30 | 10.166.236.97 – 10.166.236.98 | 10.166.236.99 |
| 26 | 10.166.236.100/30 | 10.166.236.101 – 10.166.236.102 | 10.166.236.103 |
| 27 | 10.166.236.104/30 | 10.166.236.105 – 10.166.236.106 | 10.166.236.107 |
| 28 | 10.166.236.108/30 | 10.166.236.109 – 10.166.236.110 | 10.166.236.111 |
| 29 | 10.166.236.112/30 | 10.166.236.113 – 10.166.236.114 | 10.166.236.115 |
| 30 | 10.166.236.116/30 | 10.166.236.117 – 10.166.236.118 | 10.166.236.119 |
| 31 | 10.166.236.120/30 | 10.166.236.121 – 10.166.236.122 | 10.166.236.123 |
| 32 | 10.166.236.124/30 | 10.166.236.125 – 10.166.236.126 | 10.166.236.127 |
| 33 | 10.166.236.128/30 | 10.166.236.129 – 10.166.236.130 | 10.166.236.131 |
| 34 | 10.166.236.132/30 | 10.166.236.133 – 10.166.236.134 | 10.166.236.135 |
| 35 | 10.166.236.136/30 | 10.166.236.137 – 10.166.236.138 | 10.166.236.139 |
| 36 | 10.166.236.140/30 | 10.166.236.141 – 10.166.236.142 | 10.166.236.143 |
| 37 | 10.166.236.144/30 | 10.166.236.145 – 10.166.236.146 | 10.166.236.147 |
| 38 | 10.166.236.148/30 | 10.166.236.149 – 10.166.236.150 | 10.166.236.151 |
| 39 | 10.166.236.152/30 | 10.166.236.153 – 10.166.236.154 | 10.166.236.155 |
| 40 | 10.166.236.156/30 | 10.166.236.157 – 10.166.236.158 | 10.166.236.159 |
| 41 | 10.166.236.160/30 | 10.166.236.161 – 10.166.236.162 | 10.166.236.163 |
| 42 | 10.166.236.164/30 | 10.166.236.165 – 10.166.236.166 | 10.166.236.167 |
| 43 | 10.166.236.168/30 | 10.166.236.169 – 10.166.236.170 | 10.166.236.171 |
| 44 | 10.166.236.172/30 | 10.166.236.173 – 10.166.236.174 | 10.166.236.175 |
| 45 | 10.166.236.176/30 | 10.166.236.177 – 10.166.236.178 | 10.166.236.179 |
| 46 | 10.166.236.180/30 | 10.166.236.181 – 10.166.236.182 | 10.166.236.183 |
| 47 | 10.166.236.184/30 | 10.166.236.185 – 10.166.236.186 | 10.166.236.187 |
| 48 | 10.166.236.188/30 | 10.166.236.189 – 10.166.236.190 | 10.166.236.191 |
| 49 | 10.166.236.192/30 | 10.166.236.193 – 10.166.236.194 | 10.166.236.195 |
| 50 | 10.166.236.196/30 | 10.166.236.197 – 10.166.236.198 | 10.166.236.199 |
| 51 | 10.166.236.200/30 | 10.166.236.201 – 10.166.236.202 | 10.166.236.203 |
| 52 | 10.166.236.204/30 | 10.166.236.205 – 10.166.236.206 | 10.166.236.207 |
| 53 | 10.166.236.208/30 | 10.166.236.209 – 10.166.236.210 | 10.166.236.211 |
| 54 | 10.166.236.212/30 | 10.166.236.213 – 10.166.236.214 | 10.166.236.215 |
| 55 | 10.166.236.216/30 | 10.166.236.217 – 10.166.236.218 | 10.166.236.219 |
| 56 | 10.166.236.220/30 | 10.166.236.221 – 10.166.236.222 | 10.166.236.223 |
| 57 | 10.166.236.224/30 | 10.166.236.225 – 10.166.236.226 | 10.166.236.227 |
| 58 | 10.166.236.228/30 | 10.166.236.229 – 10.166.236.230 | 10.166.236.231 |
| 59 | 10.166.236.232/30 | 10.166.236.233 – 10.166.236.234 | 10.166.236.235 |
| 60 | 10.166.236.236/30 | 10.166.236.237 – 10.166.236.238 | 10.166.236.239 |
| 61 | 10.166.236.240/30 | 10.166.236.241 – 10.166.236.242 | 10.166.236.243 |
| 62 | 10.166.236.244/30 | 10.166.236.245 – 10.166.236.246 | 10.166.236.247 |
| 63 | 10.166.236.248/30 | 10.166.236.249 – 10.166.236.250 | 10.166.236.251 |
| 64 | 10.166.236.252/30 | 10.166.236.253 – 10.166.236.254 | 10.166.236.255 |
| 65 | 10.166.237.0/30 | 10.166.237.1 – 10.166.237.2 | 10.166.237.3 |
| 66 | 10.166.237.4/30 | 10.166.237.5 – 10.166.237.6 | 10.166.237.7 |
| 67 | 10.166.237.8/30 | 10.166.237.9 – 10.166.237.10 | 10.166.237.11 |
| 68 | 10.166.237.12/30 | 10.166.237.13 – 10.166.237.14 | 10.166.237.15 |
| 69 | 10.166.237.16/30 | 10.166.237.17 – 10.166.237.18 | 10.166.237.19 |
| 70 | 10.166.237.20/30 | 10.166.237.21 – 10.166.237.22 | 10.166.237.23 |
| 71 | 10.166.237.24/30 | 10.166.237.25 – 10.166.237.26 | 10.166.237.27 |
| 72 | 10.166.237.28/30 | 10.166.237.29 – 10.166.237.30 | 10.166.237.31 |
| 73 | 10.166.237.32/30 | 10.166.237.33 – 10.166.237.34 | 10.166.237.35 |
| 74 | 10.166.237.36/30 | 10.166.237.37 – 10.166.237.38 | 10.166.237.39 |
| 75 | 10.166.237.40/30 | 10.166.237.41 – 10.166.237.42 | 10.166.237.43 |
| 76 | 10.166.237.44/30 | 10.166.237.45 – 10.166.237.46 | 10.166.237.47 |
| 77 | 10.166.237.48/30 | 10.166.237.49 – 10.166.237.50 | 10.166.237.51 |
| 78 | 10.166.237.52/30 | 10.166.237.53 – 10.166.237.54 | 10.166.237.55 |
| 79 | 10.166.237.56/30 | 10.166.237.57 – 10.166.237.58 | 10.166.237.59 |
| 80 | 10.166.237.60/30 | 10.166.237.61 – 10.166.237.62 | 10.166.237.63 |
| 81 | 10.166.237.64/30 | 10.166.237.65 – 10.166.237.66 | 10.166.237.67 |
| 82 | 10.166.237.68/30 | 10.166.237.69 – 10.166.237.70 | 10.166.237.71 |
| 83 | 10.166.237.72/30 | 10.166.237.73 – 10.166.237.74 | 10.166.237.75 |
| 84 | 10.166.237.76/30 | 10.166.237.77 – 10.166.237.78 | 10.166.237.79 |
| 85 | 10.166.237.80/30 | 10.166.237.81 – 10.166.237.82 | 10.166.237.83 |
| 86 | 10.166.237.84/30 | 10.166.237.85 – 10.166.237.86 | 10.166.237.87 |
| 87 | 10.166.237.88/30 | 10.166.237.89 – 10.166.237.90 | 10.166.237.91 |
| 88 | 10.166.237.92/30 | 10.166.237.93 – 10.166.237.94 | 10.166.237.95 |
| 89 | 10.166.237.96/30 | 10.166.237.97 – 10.166.237.98 | 10.166.237.99 |
| 90 | 10.166.237.100/30 | 10.166.237.101 – 10.166.237.102 | 10.166.237.103 |
| 91 | 10.166.237.104/30 | 10.166.237.105 – 10.166.237.106 | 10.166.237.107 |
| 92 | 10.166.237.108/30 | 10.166.237.109 – 10.166.237.110 | 10.166.237.111 |
| 93 | 10.166.237.112/30 | 10.166.237.113 – 10.166.237.114 | 10.166.237.115 |
| 94 | 10.166.237.116/30 | 10.166.237.117 – 10.166.237.118 | 10.166.237.119 |
| 95 | 10.166.237.120/30 | 10.166.237.121 – 10.166.237.122 | 10.166.237.123 |
| 96 | 10.166.237.124/30 | 10.166.237.125 – 10.166.237.126 | 10.166.237.127 |
| 97 | 10.166.237.128/30 | 10.166.237.129 – 10.166.237.130 | 10.166.237.131 |
| 98 | 10.166.237.132/30 | 10.166.237.133 – 10.166.237.134 | 10.166.237.135 |
| 99 | 10.166.237.136/30 | 10.166.237.137 – 10.166.237.138 | 10.166.237.139 |
| 100 | 10.166.237.140/30 | 10.166.237.141 – 10.166.237.142 | 10.166.237.143 |
| 101 | 10.166.237.144/30 | 10.166.237.145 – 10.166.237.146 | 10.166.237.147 |
| 102 | 10.166.237.148/30 | 10.166.237.149 – 10.166.237.150 | 10.166.237.151 |
| 103 | 10.166.237.152/30 | 10.166.237.153 – 10.166.237.154 | 10.166.237.155 |
| 104 | 10.166.237.156/30 | 10.166.237.157 – 10.166.237.158 | 10.166.237.159 |
| 105 | 10.166.237.160/30 | 10.166.237.161 – 10.166.237.162 | 10.166.237.163 |
| 106 | 10.166.237.164/30 | 10.166.237.165 – 10.166.237.166 | 10.166.237.167 |
| 107 | 10.166.237.168/30 | 10.166.237.169 – 10.166.237.170 | 10.166.237.171 |
| 108 | 10.166.237.172/30 | 10.166.237.173 – 10.166.237.174 | 10.166.237.175 |
| 109 | 10.166.237.176/30 | 10.166.237.177 – 10.166.237.178 | 10.166.237.179 |
| 110 | 10.166.237.180/30 | 10.166.237.181 – 10.166.237.182 | 10.166.237.183 |
| 111 | 10.166.237.184/30 | 10.166.237.185 – 10.166.237.186 | 10.166.237.187 |
| 112 | 10.166.237.188/30 | 10.166.237.189 – 10.166.237.190 | 10.166.237.191 |
| 113 | 10.166.237.192/30 | 10.166.237.193 – 10.166.237.194 | 10.166.237.195 |
| 114 | 10.166.237.196/30 | 10.166.237.197 – 10.166.237.198 | 10.166.237.199 |
| 115 | 10.166.237.200/30 | 10.166.237.201 – 10.166.237.202 | 10.166.237.203 |
| 116 | 10.166.237.204/30 | 10.166.237.205 – 10.166.237.206 | 10.166.237.207 |
| 117 | 10.166.237.208/30 | 10.166.237.209 – 10.166.237.210 | 10.166.237.211 |
| 118 | 10.166.237.212/30 | 10.166.237.213 – 10.166.237.214 | 10.166.237.215 |
| 119 | 10.166.237.216/30 | 10.166.237.217 – 10.166.237.218 | 10.166.237.219 |
| 120 | 10.166.237.220/30 | 10.166.237.221 – 10.166.237.222 | 10.166.237.223 |
| 121 | 10.166.237.224/30 | 10.166.237.225 – 10.166.237.226 | 10.166.237.227 |
| 122 | 10.166.237.228/30 | 10.166.237.229 – 10.166.237.230 | 10.166.237.231 |
| 123 | 10.166.237.232/30 | 10.166.237.233 – 10.166.237.234 | 10.166.237.235 |
| 124 | 10.166.237.236/30 | 10.166.237.237 – 10.166.237.238 | 10.166.237.239 |
| 125 | 10.166.237.240/30 | 10.166.237.241 – 10.166.237.242 | 10.166.237.243 |
| 126 | 10.166.237.244/30 | 10.166.237.245 – 10.166.237.246 | 10.166.237.247 |
| 127 | 10.166.237.248/30 | 10.166.237.249 – 10.166.237.250 | 10.166.237.251 |
| 128 | 10.166.237.252/30 | 10.166.237.253 – 10.166.237.254 | 10.166.237.255 |
| 129 | 10.166.238.0/30 | 10.166.238.1 – 10.166.238.2 | 10.166.238.3 |
| 130 | 10.166.238.4/30 | 10.166.238.5 – 10.166.238.6 | 10.166.238.7 |
| 131 | 10.166.238.8/30 | 10.166.238.9 – 10.166.238.10 | 10.166.238.11 |
| 132 | 10.166.238.12/30 | 10.166.238.13 – 10.166.238.14 | 10.166.238.15 |
| 133 | 10.166.238.16/30 | 10.166.238.17 – 10.166.238.18 | 10.166.238.19 |
| 134 | 10.166.238.20/30 | 10.166.238.21 – 10.166.238.22 | 10.166.238.23 |
| 135 | 10.166.238.24/30 | 10.166.238.25 – 10.166.238.26 | 10.166.238.27 |
| 136 | 10.166.238.28/30 | 10.166.238.29 – 10.166.238.30 | 10.166.238.31 |
| 137 | 10.166.238.32/30 | 10.166.238.33 – 10.166.238.34 | 10.166.238.35 |
| 138 | 10.166.238.36/30 | 10.166.238.37 – 10.166.238.38 | 10.166.238.39 |
| 139 | 10.166.238.40/30 | 10.166.238.41 – 10.166.238.42 | 10.166.238.43 |
| 140 | 10.166.238.44/30 | 10.166.238.45 – 10.166.238.46 | 10.166.238.47 |
| 141 | 10.166.238.48/30 | 10.166.238.49 – 10.166.238.50 | 10.166.238.51 |
| 142 | 10.166.238.52/30 | 10.166.238.53 – 10.166.238.54 | 10.166.238.55 |
| 143 | 10.166.238.56/30 | 10.166.238.57 – 10.166.238.58 | 10.166.238.59 |
| 144 | 10.166.238.60/30 | 10.166.238.61 – 10.166.238.62 | 10.166.238.63 |
| 145 | 10.166.238.64/30 | 10.166.238.65 – 10.166.238.66 | 10.166.238.67 |
| 146 | 10.166.238.68/30 | 10.166.238.69 – 10.166.238.70 | 10.166.238.71 |
| 147 | 10.166.238.72/30 | 10.166.238.73 – 10.166.238.74 | 10.166.238.75 |
| 148 | 10.166.238.76/30 | 10.166.238.77 – 10.166.238.78 | 10.166.238.79 |
| 149 | 10.166.238.80/30 | 10.166.238.81 – 10.166.238.82 | 10.166.238.83 |
| 150 | 10.166.238.84/30 | 10.166.238.85 – 10.166.238.86 | 10.166.238.87 |
| 151 | 10.166.238.88/30 | 10.166.238.89 – 10.166.238.90 | 10.166.238.91 |
| 152 | 10.166.238.92/30 | 10.166.238.93 – 10.166.238.94 | 10.166.238.95 |
| 153 | 10.166.238.96/30 | 10.166.238.97 – 10.166.238.98 | 10.166.238.99 |
| 154 | 10.166.238.100/30 | 10.166.238.101 – 10.166.238.102 | 10.166.238.103 |
| 155 | 10.166.238.104/30 | 10.166.238.105 – 10.166.238.106 | 10.166.238.107 |
| 156 | 10.166.238.108/30 | 10.166.238.109 – 10.166.238.110 | 10.166.238.111 |
| 157 | 10.166.238.112/30 | 10.166.238.113 – 10.166.238.114 | 10.166.238.115 |
| 158 | 10.166.238.116/30 | 10.166.238.117 – 10.166.238.118 | 10.166.238.119 |
| 159 | 10.166.238.120/30 | 10.166.238.121 – 10.166.238.122 | 10.166.238.123 |
| 160 | 10.166.238.124/30 | 10.166.238.125 – 10.166.238.126 | 10.166.238.127 |
| 161 | 10.166.238.128/30 | 10.166.238.129 – 10.166.238.130 | 10.166.238.131 |
| 162 | 10.166.238.132/30 | 10.166.238.133 – 10.166.238.134 | 10.166.238.135 |
| 163 | 10.166.238.136/30 | 10.166.238.137 – 10.166.238.138 | 10.166.238.139 |
| 164 | 10.166.238.140/30 | 10.166.238.141 – 10.166.238.142 | 10.166.238.143 |
| 165 | 10.166.238.144/30 | 10.166.238.145 – 10.166.238.146 | 10.166.238.147 |
| 166 | 10.166.238.148/30 | 10.166.238.149 – 10.166.238.150 | 10.166.238.151 |
| 167 | 10.166.238.152/30 | 10.166.238.153 – 10.166.238.154 | 10.166.238.155 |
| 168 | 10.166.238.156/30 | 10.166.238.157 – 10.166.238.158 | 10.166.238.159 |
| 169 | 10.166.238.160/30 | 10.166.238.161 – 10.166.238.162 | 10.166.238.163 |
| 170 | 10.166.238.164/30 | 10.166.238.165 – 10.166.238.166 | 10.166.238.167 |
| 171 | 10.166.238.168/30 | 10.166.238.169 – 10.166.238.170 | 10.166.238.171 |
| 172 | 10.166.238.172/30 | 10.166.238.173 – 10.166.238.174 | 10.166.238.175 |
| 173 | 10.166.238.176/30 | 10.166.238.177 – 10.166.238.178 | 10.166.238.179 |
| 174 | 10.166.238.180/30 | 10.166.238.181 – 10.166.238.182 | 10.166.238.183 |
| 175 | 10.166.238.184/30 | 10.166.238.185 – 10.166.238.186 | 10.166.238.187 |
| 176 | 10.166.238.188/30 | 10.166.238.189 – 10.166.238.190 | 10.166.238.191 |
| 177 | 10.166.238.192/30 | 10.166.238.193 – 10.166.238.194 | 10.166.238.195 |
| 178 | 10.166.238.196/30 | 10.166.238.197 – 10.166.238.198 | 10.166.238.199 |
| 179 | 10.166.238.200/30 | 10.166.238.201 – 10.166.238.202 | 10.166.238.203 |
| 180 | 10.166.238.204/30 | 10.166.238.205 – 10.166.238.206 | 10.166.238.207 |
| 181 | 10.166.238.208/30 | 10.166.238.209 – 10.166.238.210 | 10.166.238.211 |
| 182 | 10.166.238.212/30 | 10.166.238.213 – 10.166.238.214 | 10.166.238.215 |
| 183 | 10.166.238.216/30 | 10.166.238.217 – 10.166.238.218 | 10.166.238.219 |
| 184 | 10.166.238.220/30 | 10.166.238.221 – 10.166.238.222 | 10.166.238.223 |
| 185 | 10.166.238.224/30 | 10.166.238.225 – 10.166.238.226 | 10.166.238.227 |
| 186 | 10.166.238.228/30 | 10.166.238.229 – 10.166.238.230 | 10.166.238.231 |
| 187 | 10.166.238.232/30 | 10.166.238.233 – 10.166.238.234 | 10.166.238.235 |
| 188 | 10.166.238.236/30 | 10.166.238.237 – 10.166.238.238 | 10.166.238.239 |
| 189 | 10.166.238.240/30 | 10.166.238.241 – 10.166.238.242 | 10.166.238.243 |
| 190 | 10.166.238.244/30 | 10.166.238.245 – 10.166.238.246 | 10.166.238.247 |
| 191 | 10.166.238.248/30 | 10.166.238.249 – 10.166.238.250 | 10.166.238.251 |
| 192 | 10.166.238.252/30 | 10.166.238.253 – 10.166.238.254 | 10.166.238.255 |
| 193 | 10.166.239.0/30 | 10.166.239.1 – 10.166.239.2 | 10.166.239.3 |
| 194 | 10.166.239.4/30 | 10.166.239.5 – 10.166.239.6 | 10.166.239.7 |
| 195 | 10.166.239.8/30 | 10.166.239.9 – 10.166.239.10 | 10.166.239.11 |
| 196 | 10.166.239.12/30 | 10.166.239.13 – 10.166.239.14 | 10.166.239.15 |
| 197 | 10.166.239.16/30 | 10.166.239.17 – 10.166.239.18 | 10.166.239.19 |
| 198 | 10.166.239.20/30 | 10.166.239.21 – 10.166.239.22 | 10.166.239.23 |
| 199 | 10.166.239.24/30 | 10.166.239.25 – 10.166.239.26 | 10.166.239.27 |
| 200 | 10.166.239.28/30 | 10.166.239.29 – 10.166.239.30 | 10.166.239.31 |
| 201 | 10.166.239.32/30 | 10.166.239.33 – 10.166.239.34 | 10.166.239.35 |
| 202 | 10.166.239.36/30 | 10.166.239.37 – 10.166.239.38 | 10.166.239.39 |
| 203 | 10.166.239.40/30 | 10.166.239.41 – 10.166.239.42 | 10.166.239.43 |
| 204 | 10.166.239.44/30 | 10.166.239.45 – 10.166.239.46 | 10.166.239.47 |
| 205 | 10.166.239.48/30 | 10.166.239.49 – 10.166.239.50 | 10.166.239.51 |
| 206 | 10.166.239.52/30 | 10.166.239.53 – 10.166.239.54 | 10.166.239.55 |
| 207 | 10.166.239.56/30 | 10.166.239.57 – 10.166.239.58 | 10.166.239.59 |
| 208 | 10.166.239.60/30 | 10.166.239.61 – 10.166.239.62 | 10.166.239.63 |
| 209 | 10.166.239.64/30 | 10.166.239.65 – 10.166.239.66 | 10.166.239.67 |
| 210 | 10.166.239.68/30 | 10.166.239.69 – 10.166.239.70 | 10.166.239.71 |
| 211 | 10.166.239.72/30 | 10.166.239.73 – 10.166.239.74 | 10.166.239.75 |
| 212 | 10.166.239.76/30 | 10.166.239.77 – 10.166.239.78 | 10.166.239.79 |
| 213 | 10.166.239.80/30 | 10.166.239.81 – 10.166.239.82 | 10.166.239.83 |
| 214 | 10.166.239.84/30 | 10.166.239.85 – 10.166.239.86 | 10.166.239.87 |
| 215 | 10.166.239.88/30 | 10.166.239.89 – 10.166.239.90 | 10.166.239.91 |
| 216 | 10.166.239.92/30 | 10.166.239.93 – 10.166.239.94 | 10.166.239.95 |
| 217 | 10.166.239.96/30 | 10.166.239.97 – 10.166.239.98 | 10.166.239.99 |
| 218 | 10.166.239.100/30 | 10.166.239.101 – 10.166.239.102 | 10.166.239.103 |
| 219 | 10.166.239.104/30 | 10.166.239.105 – 10.166.239.106 | 10.166.239.107 |
| 220 | 10.166.239.108/30 | 10.166.239.109 – 10.166.239.110 | 10.166.239.111 |
| 221 | 10.166.239.112/30 | 10.166.239.113 – 10.166.239.114 | 10.166.239.115 |
| 222 | 10.166.239.116/30 | 10.166.239.117 – 10.166.239.118 | 10.166.239.119 |
| 223 | 10.166.239.120/30 | 10.166.239.121 – 10.166.239.122 | 10.166.239.123 |
| 224 | 10.166.239.124/30 | 10.166.239.125 – 10.166.239.126 | 10.166.239.127 |
| 225 | 10.166.239.128/30 | 10.166.239.129 – 10.166.239.130 | 10.166.239.131 |
| 226 | 10.166.239.132/30 | 10.166.239.133 – 10.166.239.134 | 10.166.239.135 |
| 227 | 10.166.239.136/30 | 10.166.239.137 – 10.166.239.138 | 10.166.239.139 |
| 228 | 10.166.239.140/30 | 10.166.239.141 – 10.166.239.142 | 10.166.239.143 |
| 229 | 10.166.239.144/30 | 10.166.239.145 – 10.166.239.146 | 10.166.239.147 |
| 230 | 10.166.239.148/30 | 10.166.239.149 – 10.166.239.150 | 10.166.239.151 |
| 231 | 10.166.239.152/30 | 10.166.239.153 – 10.166.239.154 | 10.166.239.155 |
| 232 | 10.166.239.156/30 | 10.166.239.157 – 10.166.239.158 | 10.166.239.159 |
| 233 | 10.166.239.160/30 | 10.166.239.161 – 10.166.239.162 | 10.166.239.163 |
| 234 | 10.166.239.164/30 | 10.166.239.165 – 10.166.239.166 | 10.166.239.167 |
| 235 | 10.166.239.168/30 | 10.166.239.169 – 10.166.239.170 | 10.166.239.171 |
| 236 | 10.166.239.172/30 | 10.166.239.173 – 10.166.239.174 | 10.166.239.175 |
| 237 | 10.166.239.176/30 | 10.166.239.177 – 10.166.239.178 | 10.166.239.179 |
| 238 | 10.166.239.180/30 | 10.166.239.181 – 10.166.239.182 | 10.166.239.183 |
| 239 | 10.166.239.184/30 | 10.166.239.185 – 10.166.239.186 | 10.166.239.187 |
| 240 | 10.166.239.188/30 | 10.166.239.189 – 10.166.239.190 | 10.166.239.191 |
| 241 | 10.166.239.192/30 | 10.166.239.193 – 10.166.239.194 | 10.166.239.195 |
| 242 | 10.166.239.196/30 | 10.166.239.197 – 10.166.239.198 | 10.166.239.199 |
| 243 | 10.166.239.200/30 | 10.166.239.201 – 10.166.239.202 | 10.166.239.203 |
| 244 | 10.166.239.204/30 | 10.166.239.205 – 10.166.239.206 | 10.166.239.207 |
| 245 | 10.166.239.208/30 | 10.166.239.209 – 10.166.239.210 | 10.166.239.211 |
| 246 | 10.166.239.212/30 | 10.166.239.213 – 10.166.239.214 | 10.166.239.215 |
| 247 | 10.166.239.216/30 | 10.166.239.217 – 10.166.239.218 | 10.166.239.219 |
| 248 | 10.166.239.220/30 | 10.166.239.221 – 10.166.239.222 | 10.166.239.223 |
| 249 | 10.166.239.224/30 | 10.166.239.225 – 10.166.239.226 | 10.166.239.227 |
| 250 | 10.166.239.228/30 | 10.166.239.229 – 10.166.239.230 | 10.166.239.231 |
| 251 | 10.166.239.232/30 | 10.166.239.233 – 10.166.239.234 | 10.166.239.235 |
| 252 | 10.166.239.236/30 | 10.166.239.237 – 10.166.239.238 | 10.166.239.239 |
| 253 | 10.166.239.240/30 | 10.166.239.241 – 10.166.239.242 | 10.166.239.243 |
| 254 | 10.166.239.244/30 | 10.166.239.245 – 10.166.239.246 | 10.166.239.247 |
| 255 | 10.166.239.248/30 | 10.166.239.249 – 10.166.239.250 | 10.166.239.251 |
| 256 | 10.166.239.252/30 | 10.166.239.253 – 10.166.239.254 | 10.166.239.255 |
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.