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)10.66.76.0/22
network10.66.76.0/22
broadcast10.66.79.255
first host10.66.76.1
last host10.66.79.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.66.76.0/22
address00001010.01000010.01001100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01000010.01001100.00000000
broadcast00001010.01000010.01001111.11111111
green = network part, grey = host part
hex0x0a424c00
decimal172116992
reverse dns0.76.66.10.in-addr.arpa
ipv4-mapped::ffff:a42:4c00
/22 split into /30 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.66.76.0/30 | 10.66.76.1 – 10.66.76.2 | 10.66.76.3 |
| 2 | 10.66.76.4/30 | 10.66.76.5 – 10.66.76.6 | 10.66.76.7 |
| 3 | 10.66.76.8/30 | 10.66.76.9 – 10.66.76.10 | 10.66.76.11 |
| 4 | 10.66.76.12/30 | 10.66.76.13 – 10.66.76.14 | 10.66.76.15 |
| 5 | 10.66.76.16/30 | 10.66.76.17 – 10.66.76.18 | 10.66.76.19 |
| 6 | 10.66.76.20/30 | 10.66.76.21 – 10.66.76.22 | 10.66.76.23 |
| 7 | 10.66.76.24/30 | 10.66.76.25 – 10.66.76.26 | 10.66.76.27 |
| 8 | 10.66.76.28/30 | 10.66.76.29 – 10.66.76.30 | 10.66.76.31 |
| 9 | 10.66.76.32/30 | 10.66.76.33 – 10.66.76.34 | 10.66.76.35 |
| 10 | 10.66.76.36/30 | 10.66.76.37 – 10.66.76.38 | 10.66.76.39 |
| 11 | 10.66.76.40/30 | 10.66.76.41 – 10.66.76.42 | 10.66.76.43 |
| 12 | 10.66.76.44/30 | 10.66.76.45 – 10.66.76.46 | 10.66.76.47 |
| 13 | 10.66.76.48/30 | 10.66.76.49 – 10.66.76.50 | 10.66.76.51 |
| 14 | 10.66.76.52/30 | 10.66.76.53 – 10.66.76.54 | 10.66.76.55 |
| 15 | 10.66.76.56/30 | 10.66.76.57 – 10.66.76.58 | 10.66.76.59 |
| 16 | 10.66.76.60/30 | 10.66.76.61 – 10.66.76.62 | 10.66.76.63 |
| 17 | 10.66.76.64/30 | 10.66.76.65 – 10.66.76.66 | 10.66.76.67 |
| 18 | 10.66.76.68/30 | 10.66.76.69 – 10.66.76.70 | 10.66.76.71 |
| 19 | 10.66.76.72/30 | 10.66.76.73 – 10.66.76.74 | 10.66.76.75 |
| 20 | 10.66.76.76/30 | 10.66.76.77 – 10.66.76.78 | 10.66.76.79 |
| 21 | 10.66.76.80/30 | 10.66.76.81 – 10.66.76.82 | 10.66.76.83 |
| 22 | 10.66.76.84/30 | 10.66.76.85 – 10.66.76.86 | 10.66.76.87 |
| 23 | 10.66.76.88/30 | 10.66.76.89 – 10.66.76.90 | 10.66.76.91 |
| 24 | 10.66.76.92/30 | 10.66.76.93 – 10.66.76.94 | 10.66.76.95 |
| 25 | 10.66.76.96/30 | 10.66.76.97 – 10.66.76.98 | 10.66.76.99 |
| 26 | 10.66.76.100/30 | 10.66.76.101 – 10.66.76.102 | 10.66.76.103 |
| 27 | 10.66.76.104/30 | 10.66.76.105 – 10.66.76.106 | 10.66.76.107 |
| 28 | 10.66.76.108/30 | 10.66.76.109 – 10.66.76.110 | 10.66.76.111 |
| 29 | 10.66.76.112/30 | 10.66.76.113 – 10.66.76.114 | 10.66.76.115 |
| 30 | 10.66.76.116/30 | 10.66.76.117 – 10.66.76.118 | 10.66.76.119 |
| 31 | 10.66.76.120/30 | 10.66.76.121 – 10.66.76.122 | 10.66.76.123 |
| 32 | 10.66.76.124/30 | 10.66.76.125 – 10.66.76.126 | 10.66.76.127 |
| 33 | 10.66.76.128/30 | 10.66.76.129 – 10.66.76.130 | 10.66.76.131 |
| 34 | 10.66.76.132/30 | 10.66.76.133 – 10.66.76.134 | 10.66.76.135 |
| 35 | 10.66.76.136/30 | 10.66.76.137 – 10.66.76.138 | 10.66.76.139 |
| 36 | 10.66.76.140/30 | 10.66.76.141 – 10.66.76.142 | 10.66.76.143 |
| 37 | 10.66.76.144/30 | 10.66.76.145 – 10.66.76.146 | 10.66.76.147 |
| 38 | 10.66.76.148/30 | 10.66.76.149 – 10.66.76.150 | 10.66.76.151 |
| 39 | 10.66.76.152/30 | 10.66.76.153 – 10.66.76.154 | 10.66.76.155 |
| 40 | 10.66.76.156/30 | 10.66.76.157 – 10.66.76.158 | 10.66.76.159 |
| 41 | 10.66.76.160/30 | 10.66.76.161 – 10.66.76.162 | 10.66.76.163 |
| 42 | 10.66.76.164/30 | 10.66.76.165 – 10.66.76.166 | 10.66.76.167 |
| 43 | 10.66.76.168/30 | 10.66.76.169 – 10.66.76.170 | 10.66.76.171 |
| 44 | 10.66.76.172/30 | 10.66.76.173 – 10.66.76.174 | 10.66.76.175 |
| 45 | 10.66.76.176/30 | 10.66.76.177 – 10.66.76.178 | 10.66.76.179 |
| 46 | 10.66.76.180/30 | 10.66.76.181 – 10.66.76.182 | 10.66.76.183 |
| 47 | 10.66.76.184/30 | 10.66.76.185 – 10.66.76.186 | 10.66.76.187 |
| 48 | 10.66.76.188/30 | 10.66.76.189 – 10.66.76.190 | 10.66.76.191 |
| 49 | 10.66.76.192/30 | 10.66.76.193 – 10.66.76.194 | 10.66.76.195 |
| 50 | 10.66.76.196/30 | 10.66.76.197 – 10.66.76.198 | 10.66.76.199 |
| 51 | 10.66.76.200/30 | 10.66.76.201 – 10.66.76.202 | 10.66.76.203 |
| 52 | 10.66.76.204/30 | 10.66.76.205 – 10.66.76.206 | 10.66.76.207 |
| 53 | 10.66.76.208/30 | 10.66.76.209 – 10.66.76.210 | 10.66.76.211 |
| 54 | 10.66.76.212/30 | 10.66.76.213 – 10.66.76.214 | 10.66.76.215 |
| 55 | 10.66.76.216/30 | 10.66.76.217 – 10.66.76.218 | 10.66.76.219 |
| 56 | 10.66.76.220/30 | 10.66.76.221 – 10.66.76.222 | 10.66.76.223 |
| 57 | 10.66.76.224/30 | 10.66.76.225 – 10.66.76.226 | 10.66.76.227 |
| 58 | 10.66.76.228/30 | 10.66.76.229 – 10.66.76.230 | 10.66.76.231 |
| 59 | 10.66.76.232/30 | 10.66.76.233 – 10.66.76.234 | 10.66.76.235 |
| 60 | 10.66.76.236/30 | 10.66.76.237 – 10.66.76.238 | 10.66.76.239 |
| 61 | 10.66.76.240/30 | 10.66.76.241 – 10.66.76.242 | 10.66.76.243 |
| 62 | 10.66.76.244/30 | 10.66.76.245 – 10.66.76.246 | 10.66.76.247 |
| 63 | 10.66.76.248/30 | 10.66.76.249 – 10.66.76.250 | 10.66.76.251 |
| 64 | 10.66.76.252/30 | 10.66.76.253 – 10.66.76.254 | 10.66.76.255 |
| 65 | 10.66.77.0/30 | 10.66.77.1 – 10.66.77.2 | 10.66.77.3 |
| 66 | 10.66.77.4/30 | 10.66.77.5 – 10.66.77.6 | 10.66.77.7 |
| 67 | 10.66.77.8/30 | 10.66.77.9 – 10.66.77.10 | 10.66.77.11 |
| 68 | 10.66.77.12/30 | 10.66.77.13 – 10.66.77.14 | 10.66.77.15 |
| 69 | 10.66.77.16/30 | 10.66.77.17 – 10.66.77.18 | 10.66.77.19 |
| 70 | 10.66.77.20/30 | 10.66.77.21 – 10.66.77.22 | 10.66.77.23 |
| 71 | 10.66.77.24/30 | 10.66.77.25 – 10.66.77.26 | 10.66.77.27 |
| 72 | 10.66.77.28/30 | 10.66.77.29 – 10.66.77.30 | 10.66.77.31 |
| 73 | 10.66.77.32/30 | 10.66.77.33 – 10.66.77.34 | 10.66.77.35 |
| 74 | 10.66.77.36/30 | 10.66.77.37 – 10.66.77.38 | 10.66.77.39 |
| 75 | 10.66.77.40/30 | 10.66.77.41 – 10.66.77.42 | 10.66.77.43 |
| 76 | 10.66.77.44/30 | 10.66.77.45 – 10.66.77.46 | 10.66.77.47 |
| 77 | 10.66.77.48/30 | 10.66.77.49 – 10.66.77.50 | 10.66.77.51 |
| 78 | 10.66.77.52/30 | 10.66.77.53 – 10.66.77.54 | 10.66.77.55 |
| 79 | 10.66.77.56/30 | 10.66.77.57 – 10.66.77.58 | 10.66.77.59 |
| 80 | 10.66.77.60/30 | 10.66.77.61 – 10.66.77.62 | 10.66.77.63 |
| 81 | 10.66.77.64/30 | 10.66.77.65 – 10.66.77.66 | 10.66.77.67 |
| 82 | 10.66.77.68/30 | 10.66.77.69 – 10.66.77.70 | 10.66.77.71 |
| 83 | 10.66.77.72/30 | 10.66.77.73 – 10.66.77.74 | 10.66.77.75 |
| 84 | 10.66.77.76/30 | 10.66.77.77 – 10.66.77.78 | 10.66.77.79 |
| 85 | 10.66.77.80/30 | 10.66.77.81 – 10.66.77.82 | 10.66.77.83 |
| 86 | 10.66.77.84/30 | 10.66.77.85 – 10.66.77.86 | 10.66.77.87 |
| 87 | 10.66.77.88/30 | 10.66.77.89 – 10.66.77.90 | 10.66.77.91 |
| 88 | 10.66.77.92/30 | 10.66.77.93 – 10.66.77.94 | 10.66.77.95 |
| 89 | 10.66.77.96/30 | 10.66.77.97 – 10.66.77.98 | 10.66.77.99 |
| 90 | 10.66.77.100/30 | 10.66.77.101 – 10.66.77.102 | 10.66.77.103 |
| 91 | 10.66.77.104/30 | 10.66.77.105 – 10.66.77.106 | 10.66.77.107 |
| 92 | 10.66.77.108/30 | 10.66.77.109 – 10.66.77.110 | 10.66.77.111 |
| 93 | 10.66.77.112/30 | 10.66.77.113 – 10.66.77.114 | 10.66.77.115 |
| 94 | 10.66.77.116/30 | 10.66.77.117 – 10.66.77.118 | 10.66.77.119 |
| 95 | 10.66.77.120/30 | 10.66.77.121 – 10.66.77.122 | 10.66.77.123 |
| 96 | 10.66.77.124/30 | 10.66.77.125 – 10.66.77.126 | 10.66.77.127 |
| 97 | 10.66.77.128/30 | 10.66.77.129 – 10.66.77.130 | 10.66.77.131 |
| 98 | 10.66.77.132/30 | 10.66.77.133 – 10.66.77.134 | 10.66.77.135 |
| 99 | 10.66.77.136/30 | 10.66.77.137 – 10.66.77.138 | 10.66.77.139 |
| 100 | 10.66.77.140/30 | 10.66.77.141 – 10.66.77.142 | 10.66.77.143 |
| 101 | 10.66.77.144/30 | 10.66.77.145 – 10.66.77.146 | 10.66.77.147 |
| 102 | 10.66.77.148/30 | 10.66.77.149 – 10.66.77.150 | 10.66.77.151 |
| 103 | 10.66.77.152/30 | 10.66.77.153 – 10.66.77.154 | 10.66.77.155 |
| 104 | 10.66.77.156/30 | 10.66.77.157 – 10.66.77.158 | 10.66.77.159 |
| 105 | 10.66.77.160/30 | 10.66.77.161 – 10.66.77.162 | 10.66.77.163 |
| 106 | 10.66.77.164/30 | 10.66.77.165 – 10.66.77.166 | 10.66.77.167 |
| 107 | 10.66.77.168/30 | 10.66.77.169 – 10.66.77.170 | 10.66.77.171 |
| 108 | 10.66.77.172/30 | 10.66.77.173 – 10.66.77.174 | 10.66.77.175 |
| 109 | 10.66.77.176/30 | 10.66.77.177 – 10.66.77.178 | 10.66.77.179 |
| 110 | 10.66.77.180/30 | 10.66.77.181 – 10.66.77.182 | 10.66.77.183 |
| 111 | 10.66.77.184/30 | 10.66.77.185 – 10.66.77.186 | 10.66.77.187 |
| 112 | 10.66.77.188/30 | 10.66.77.189 – 10.66.77.190 | 10.66.77.191 |
| 113 | 10.66.77.192/30 | 10.66.77.193 – 10.66.77.194 | 10.66.77.195 |
| 114 | 10.66.77.196/30 | 10.66.77.197 – 10.66.77.198 | 10.66.77.199 |
| 115 | 10.66.77.200/30 | 10.66.77.201 – 10.66.77.202 | 10.66.77.203 |
| 116 | 10.66.77.204/30 | 10.66.77.205 – 10.66.77.206 | 10.66.77.207 |
| 117 | 10.66.77.208/30 | 10.66.77.209 – 10.66.77.210 | 10.66.77.211 |
| 118 | 10.66.77.212/30 | 10.66.77.213 – 10.66.77.214 | 10.66.77.215 |
| 119 | 10.66.77.216/30 | 10.66.77.217 – 10.66.77.218 | 10.66.77.219 |
| 120 | 10.66.77.220/30 | 10.66.77.221 – 10.66.77.222 | 10.66.77.223 |
| 121 | 10.66.77.224/30 | 10.66.77.225 – 10.66.77.226 | 10.66.77.227 |
| 122 | 10.66.77.228/30 | 10.66.77.229 – 10.66.77.230 | 10.66.77.231 |
| 123 | 10.66.77.232/30 | 10.66.77.233 – 10.66.77.234 | 10.66.77.235 |
| 124 | 10.66.77.236/30 | 10.66.77.237 – 10.66.77.238 | 10.66.77.239 |
| 125 | 10.66.77.240/30 | 10.66.77.241 – 10.66.77.242 | 10.66.77.243 |
| 126 | 10.66.77.244/30 | 10.66.77.245 – 10.66.77.246 | 10.66.77.247 |
| 127 | 10.66.77.248/30 | 10.66.77.249 – 10.66.77.250 | 10.66.77.251 |
| 128 | 10.66.77.252/30 | 10.66.77.253 – 10.66.77.254 | 10.66.77.255 |
| 129 | 10.66.78.0/30 | 10.66.78.1 – 10.66.78.2 | 10.66.78.3 |
| 130 | 10.66.78.4/30 | 10.66.78.5 – 10.66.78.6 | 10.66.78.7 |
| 131 | 10.66.78.8/30 | 10.66.78.9 – 10.66.78.10 | 10.66.78.11 |
| 132 | 10.66.78.12/30 | 10.66.78.13 – 10.66.78.14 | 10.66.78.15 |
| 133 | 10.66.78.16/30 | 10.66.78.17 – 10.66.78.18 | 10.66.78.19 |
| 134 | 10.66.78.20/30 | 10.66.78.21 – 10.66.78.22 | 10.66.78.23 |
| 135 | 10.66.78.24/30 | 10.66.78.25 – 10.66.78.26 | 10.66.78.27 |
| 136 | 10.66.78.28/30 | 10.66.78.29 – 10.66.78.30 | 10.66.78.31 |
| 137 | 10.66.78.32/30 | 10.66.78.33 – 10.66.78.34 | 10.66.78.35 |
| 138 | 10.66.78.36/30 | 10.66.78.37 – 10.66.78.38 | 10.66.78.39 |
| 139 | 10.66.78.40/30 | 10.66.78.41 – 10.66.78.42 | 10.66.78.43 |
| 140 | 10.66.78.44/30 | 10.66.78.45 – 10.66.78.46 | 10.66.78.47 |
| 141 | 10.66.78.48/30 | 10.66.78.49 – 10.66.78.50 | 10.66.78.51 |
| 142 | 10.66.78.52/30 | 10.66.78.53 – 10.66.78.54 | 10.66.78.55 |
| 143 | 10.66.78.56/30 | 10.66.78.57 – 10.66.78.58 | 10.66.78.59 |
| 144 | 10.66.78.60/30 | 10.66.78.61 – 10.66.78.62 | 10.66.78.63 |
| 145 | 10.66.78.64/30 | 10.66.78.65 – 10.66.78.66 | 10.66.78.67 |
| 146 | 10.66.78.68/30 | 10.66.78.69 – 10.66.78.70 | 10.66.78.71 |
| 147 | 10.66.78.72/30 | 10.66.78.73 – 10.66.78.74 | 10.66.78.75 |
| 148 | 10.66.78.76/30 | 10.66.78.77 – 10.66.78.78 | 10.66.78.79 |
| 149 | 10.66.78.80/30 | 10.66.78.81 – 10.66.78.82 | 10.66.78.83 |
| 150 | 10.66.78.84/30 | 10.66.78.85 – 10.66.78.86 | 10.66.78.87 |
| 151 | 10.66.78.88/30 | 10.66.78.89 – 10.66.78.90 | 10.66.78.91 |
| 152 | 10.66.78.92/30 | 10.66.78.93 – 10.66.78.94 | 10.66.78.95 |
| 153 | 10.66.78.96/30 | 10.66.78.97 – 10.66.78.98 | 10.66.78.99 |
| 154 | 10.66.78.100/30 | 10.66.78.101 – 10.66.78.102 | 10.66.78.103 |
| 155 | 10.66.78.104/30 | 10.66.78.105 – 10.66.78.106 | 10.66.78.107 |
| 156 | 10.66.78.108/30 | 10.66.78.109 – 10.66.78.110 | 10.66.78.111 |
| 157 | 10.66.78.112/30 | 10.66.78.113 – 10.66.78.114 | 10.66.78.115 |
| 158 | 10.66.78.116/30 | 10.66.78.117 – 10.66.78.118 | 10.66.78.119 |
| 159 | 10.66.78.120/30 | 10.66.78.121 – 10.66.78.122 | 10.66.78.123 |
| 160 | 10.66.78.124/30 | 10.66.78.125 – 10.66.78.126 | 10.66.78.127 |
| 161 | 10.66.78.128/30 | 10.66.78.129 – 10.66.78.130 | 10.66.78.131 |
| 162 | 10.66.78.132/30 | 10.66.78.133 – 10.66.78.134 | 10.66.78.135 |
| 163 | 10.66.78.136/30 | 10.66.78.137 – 10.66.78.138 | 10.66.78.139 |
| 164 | 10.66.78.140/30 | 10.66.78.141 – 10.66.78.142 | 10.66.78.143 |
| 165 | 10.66.78.144/30 | 10.66.78.145 – 10.66.78.146 | 10.66.78.147 |
| 166 | 10.66.78.148/30 | 10.66.78.149 – 10.66.78.150 | 10.66.78.151 |
| 167 | 10.66.78.152/30 | 10.66.78.153 – 10.66.78.154 | 10.66.78.155 |
| 168 | 10.66.78.156/30 | 10.66.78.157 – 10.66.78.158 | 10.66.78.159 |
| 169 | 10.66.78.160/30 | 10.66.78.161 – 10.66.78.162 | 10.66.78.163 |
| 170 | 10.66.78.164/30 | 10.66.78.165 – 10.66.78.166 | 10.66.78.167 |
| 171 | 10.66.78.168/30 | 10.66.78.169 – 10.66.78.170 | 10.66.78.171 |
| 172 | 10.66.78.172/30 | 10.66.78.173 – 10.66.78.174 | 10.66.78.175 |
| 173 | 10.66.78.176/30 | 10.66.78.177 – 10.66.78.178 | 10.66.78.179 |
| 174 | 10.66.78.180/30 | 10.66.78.181 – 10.66.78.182 | 10.66.78.183 |
| 175 | 10.66.78.184/30 | 10.66.78.185 – 10.66.78.186 | 10.66.78.187 |
| 176 | 10.66.78.188/30 | 10.66.78.189 – 10.66.78.190 | 10.66.78.191 |
| 177 | 10.66.78.192/30 | 10.66.78.193 – 10.66.78.194 | 10.66.78.195 |
| 178 | 10.66.78.196/30 | 10.66.78.197 – 10.66.78.198 | 10.66.78.199 |
| 179 | 10.66.78.200/30 | 10.66.78.201 – 10.66.78.202 | 10.66.78.203 |
| 180 | 10.66.78.204/30 | 10.66.78.205 – 10.66.78.206 | 10.66.78.207 |
| 181 | 10.66.78.208/30 | 10.66.78.209 – 10.66.78.210 | 10.66.78.211 |
| 182 | 10.66.78.212/30 | 10.66.78.213 – 10.66.78.214 | 10.66.78.215 |
| 183 | 10.66.78.216/30 | 10.66.78.217 – 10.66.78.218 | 10.66.78.219 |
| 184 | 10.66.78.220/30 | 10.66.78.221 – 10.66.78.222 | 10.66.78.223 |
| 185 | 10.66.78.224/30 | 10.66.78.225 – 10.66.78.226 | 10.66.78.227 |
| 186 | 10.66.78.228/30 | 10.66.78.229 – 10.66.78.230 | 10.66.78.231 |
| 187 | 10.66.78.232/30 | 10.66.78.233 – 10.66.78.234 | 10.66.78.235 |
| 188 | 10.66.78.236/30 | 10.66.78.237 – 10.66.78.238 | 10.66.78.239 |
| 189 | 10.66.78.240/30 | 10.66.78.241 – 10.66.78.242 | 10.66.78.243 |
| 190 | 10.66.78.244/30 | 10.66.78.245 – 10.66.78.246 | 10.66.78.247 |
| 191 | 10.66.78.248/30 | 10.66.78.249 – 10.66.78.250 | 10.66.78.251 |
| 192 | 10.66.78.252/30 | 10.66.78.253 – 10.66.78.254 | 10.66.78.255 |
| 193 | 10.66.79.0/30 | 10.66.79.1 – 10.66.79.2 | 10.66.79.3 |
| 194 | 10.66.79.4/30 | 10.66.79.5 – 10.66.79.6 | 10.66.79.7 |
| 195 | 10.66.79.8/30 | 10.66.79.9 – 10.66.79.10 | 10.66.79.11 |
| 196 | 10.66.79.12/30 | 10.66.79.13 – 10.66.79.14 | 10.66.79.15 |
| 197 | 10.66.79.16/30 | 10.66.79.17 – 10.66.79.18 | 10.66.79.19 |
| 198 | 10.66.79.20/30 | 10.66.79.21 – 10.66.79.22 | 10.66.79.23 |
| 199 | 10.66.79.24/30 | 10.66.79.25 – 10.66.79.26 | 10.66.79.27 |
| 200 | 10.66.79.28/30 | 10.66.79.29 – 10.66.79.30 | 10.66.79.31 |
| 201 | 10.66.79.32/30 | 10.66.79.33 – 10.66.79.34 | 10.66.79.35 |
| 202 | 10.66.79.36/30 | 10.66.79.37 – 10.66.79.38 | 10.66.79.39 |
| 203 | 10.66.79.40/30 | 10.66.79.41 – 10.66.79.42 | 10.66.79.43 |
| 204 | 10.66.79.44/30 | 10.66.79.45 – 10.66.79.46 | 10.66.79.47 |
| 205 | 10.66.79.48/30 | 10.66.79.49 – 10.66.79.50 | 10.66.79.51 |
| 206 | 10.66.79.52/30 | 10.66.79.53 – 10.66.79.54 | 10.66.79.55 |
| 207 | 10.66.79.56/30 | 10.66.79.57 – 10.66.79.58 | 10.66.79.59 |
| 208 | 10.66.79.60/30 | 10.66.79.61 – 10.66.79.62 | 10.66.79.63 |
| 209 | 10.66.79.64/30 | 10.66.79.65 – 10.66.79.66 | 10.66.79.67 |
| 210 | 10.66.79.68/30 | 10.66.79.69 – 10.66.79.70 | 10.66.79.71 |
| 211 | 10.66.79.72/30 | 10.66.79.73 – 10.66.79.74 | 10.66.79.75 |
| 212 | 10.66.79.76/30 | 10.66.79.77 – 10.66.79.78 | 10.66.79.79 |
| 213 | 10.66.79.80/30 | 10.66.79.81 – 10.66.79.82 | 10.66.79.83 |
| 214 | 10.66.79.84/30 | 10.66.79.85 – 10.66.79.86 | 10.66.79.87 |
| 215 | 10.66.79.88/30 | 10.66.79.89 – 10.66.79.90 | 10.66.79.91 |
| 216 | 10.66.79.92/30 | 10.66.79.93 – 10.66.79.94 | 10.66.79.95 |
| 217 | 10.66.79.96/30 | 10.66.79.97 – 10.66.79.98 | 10.66.79.99 |
| 218 | 10.66.79.100/30 | 10.66.79.101 – 10.66.79.102 | 10.66.79.103 |
| 219 | 10.66.79.104/30 | 10.66.79.105 – 10.66.79.106 | 10.66.79.107 |
| 220 | 10.66.79.108/30 | 10.66.79.109 – 10.66.79.110 | 10.66.79.111 |
| 221 | 10.66.79.112/30 | 10.66.79.113 – 10.66.79.114 | 10.66.79.115 |
| 222 | 10.66.79.116/30 | 10.66.79.117 – 10.66.79.118 | 10.66.79.119 |
| 223 | 10.66.79.120/30 | 10.66.79.121 – 10.66.79.122 | 10.66.79.123 |
| 224 | 10.66.79.124/30 | 10.66.79.125 – 10.66.79.126 | 10.66.79.127 |
| 225 | 10.66.79.128/30 | 10.66.79.129 – 10.66.79.130 | 10.66.79.131 |
| 226 | 10.66.79.132/30 | 10.66.79.133 – 10.66.79.134 | 10.66.79.135 |
| 227 | 10.66.79.136/30 | 10.66.79.137 – 10.66.79.138 | 10.66.79.139 |
| 228 | 10.66.79.140/30 | 10.66.79.141 – 10.66.79.142 | 10.66.79.143 |
| 229 | 10.66.79.144/30 | 10.66.79.145 – 10.66.79.146 | 10.66.79.147 |
| 230 | 10.66.79.148/30 | 10.66.79.149 – 10.66.79.150 | 10.66.79.151 |
| 231 | 10.66.79.152/30 | 10.66.79.153 – 10.66.79.154 | 10.66.79.155 |
| 232 | 10.66.79.156/30 | 10.66.79.157 – 10.66.79.158 | 10.66.79.159 |
| 233 | 10.66.79.160/30 | 10.66.79.161 – 10.66.79.162 | 10.66.79.163 |
| 234 | 10.66.79.164/30 | 10.66.79.165 – 10.66.79.166 | 10.66.79.167 |
| 235 | 10.66.79.168/30 | 10.66.79.169 – 10.66.79.170 | 10.66.79.171 |
| 236 | 10.66.79.172/30 | 10.66.79.173 – 10.66.79.174 | 10.66.79.175 |
| 237 | 10.66.79.176/30 | 10.66.79.177 – 10.66.79.178 | 10.66.79.179 |
| 238 | 10.66.79.180/30 | 10.66.79.181 – 10.66.79.182 | 10.66.79.183 |
| 239 | 10.66.79.184/30 | 10.66.79.185 – 10.66.79.186 | 10.66.79.187 |
| 240 | 10.66.79.188/30 | 10.66.79.189 – 10.66.79.190 | 10.66.79.191 |
| 241 | 10.66.79.192/30 | 10.66.79.193 – 10.66.79.194 | 10.66.79.195 |
| 242 | 10.66.79.196/30 | 10.66.79.197 – 10.66.79.198 | 10.66.79.199 |
| 243 | 10.66.79.200/30 | 10.66.79.201 – 10.66.79.202 | 10.66.79.203 |
| 244 | 10.66.79.204/30 | 10.66.79.205 – 10.66.79.206 | 10.66.79.207 |
| 245 | 10.66.79.208/30 | 10.66.79.209 – 10.66.79.210 | 10.66.79.211 |
| 246 | 10.66.79.212/30 | 10.66.79.213 – 10.66.79.214 | 10.66.79.215 |
| 247 | 10.66.79.216/30 | 10.66.79.217 – 10.66.79.218 | 10.66.79.219 |
| 248 | 10.66.79.220/30 | 10.66.79.221 – 10.66.79.222 | 10.66.79.223 |
| 249 | 10.66.79.224/30 | 10.66.79.225 – 10.66.79.226 | 10.66.79.227 |
| 250 | 10.66.79.228/30 | 10.66.79.229 – 10.66.79.230 | 10.66.79.231 |
| 251 | 10.66.79.232/30 | 10.66.79.233 – 10.66.79.234 | 10.66.79.235 |
| 252 | 10.66.79.236/30 | 10.66.79.237 – 10.66.79.238 | 10.66.79.239 |
| 253 | 10.66.79.240/30 | 10.66.79.241 – 10.66.79.242 | 10.66.79.243 |
| 254 | 10.66.79.244/30 | 10.66.79.245 – 10.66.79.246 | 10.66.79.247 |
| 255 | 10.66.79.248/30 | 10.66.79.249 – 10.66.79.250 | 10.66.79.251 |
| 256 | 10.66.79.252/30 | 10.66.79.253 – 10.66.79.254 | 10.66.79.255 |
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.