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)10.40.136.0/22
network10.40.136.0/22
broadcast10.40.139.255
first host10.40.136.1
last host10.40.139.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.40.136.0/22
address00001010.00101000.10001000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.00101000.10001000.00000000
broadcast00001010.00101000.10001011.11111111
green = network part, grey = host part
hex0x0a288800
decimal170428416
reverse dns0.136.40.10.in-addr.arpa
ipv4-mapped::ffff:a28:8800
/22 split into /30 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.40.136.0/30 | 10.40.136.1 – 10.40.136.2 | 10.40.136.3 |
| 2 | 10.40.136.4/30 | 10.40.136.5 – 10.40.136.6 | 10.40.136.7 |
| 3 | 10.40.136.8/30 | 10.40.136.9 – 10.40.136.10 | 10.40.136.11 |
| 4 | 10.40.136.12/30 | 10.40.136.13 – 10.40.136.14 | 10.40.136.15 |
| 5 | 10.40.136.16/30 | 10.40.136.17 – 10.40.136.18 | 10.40.136.19 |
| 6 | 10.40.136.20/30 | 10.40.136.21 – 10.40.136.22 | 10.40.136.23 |
| 7 | 10.40.136.24/30 | 10.40.136.25 – 10.40.136.26 | 10.40.136.27 |
| 8 | 10.40.136.28/30 | 10.40.136.29 – 10.40.136.30 | 10.40.136.31 |
| 9 | 10.40.136.32/30 | 10.40.136.33 – 10.40.136.34 | 10.40.136.35 |
| 10 | 10.40.136.36/30 | 10.40.136.37 – 10.40.136.38 | 10.40.136.39 |
| 11 | 10.40.136.40/30 | 10.40.136.41 – 10.40.136.42 | 10.40.136.43 |
| 12 | 10.40.136.44/30 | 10.40.136.45 – 10.40.136.46 | 10.40.136.47 |
| 13 | 10.40.136.48/30 | 10.40.136.49 – 10.40.136.50 | 10.40.136.51 |
| 14 | 10.40.136.52/30 | 10.40.136.53 – 10.40.136.54 | 10.40.136.55 |
| 15 | 10.40.136.56/30 | 10.40.136.57 – 10.40.136.58 | 10.40.136.59 |
| 16 | 10.40.136.60/30 | 10.40.136.61 – 10.40.136.62 | 10.40.136.63 |
| 17 | 10.40.136.64/30 | 10.40.136.65 – 10.40.136.66 | 10.40.136.67 |
| 18 | 10.40.136.68/30 | 10.40.136.69 – 10.40.136.70 | 10.40.136.71 |
| 19 | 10.40.136.72/30 | 10.40.136.73 – 10.40.136.74 | 10.40.136.75 |
| 20 | 10.40.136.76/30 | 10.40.136.77 – 10.40.136.78 | 10.40.136.79 |
| 21 | 10.40.136.80/30 | 10.40.136.81 – 10.40.136.82 | 10.40.136.83 |
| 22 | 10.40.136.84/30 | 10.40.136.85 – 10.40.136.86 | 10.40.136.87 |
| 23 | 10.40.136.88/30 | 10.40.136.89 – 10.40.136.90 | 10.40.136.91 |
| 24 | 10.40.136.92/30 | 10.40.136.93 – 10.40.136.94 | 10.40.136.95 |
| 25 | 10.40.136.96/30 | 10.40.136.97 – 10.40.136.98 | 10.40.136.99 |
| 26 | 10.40.136.100/30 | 10.40.136.101 – 10.40.136.102 | 10.40.136.103 |
| 27 | 10.40.136.104/30 | 10.40.136.105 – 10.40.136.106 | 10.40.136.107 |
| 28 | 10.40.136.108/30 | 10.40.136.109 – 10.40.136.110 | 10.40.136.111 |
| 29 | 10.40.136.112/30 | 10.40.136.113 – 10.40.136.114 | 10.40.136.115 |
| 30 | 10.40.136.116/30 | 10.40.136.117 – 10.40.136.118 | 10.40.136.119 |
| 31 | 10.40.136.120/30 | 10.40.136.121 – 10.40.136.122 | 10.40.136.123 |
| 32 | 10.40.136.124/30 | 10.40.136.125 – 10.40.136.126 | 10.40.136.127 |
| 33 | 10.40.136.128/30 | 10.40.136.129 – 10.40.136.130 | 10.40.136.131 |
| 34 | 10.40.136.132/30 | 10.40.136.133 – 10.40.136.134 | 10.40.136.135 |
| 35 | 10.40.136.136/30 | 10.40.136.137 – 10.40.136.138 | 10.40.136.139 |
| 36 | 10.40.136.140/30 | 10.40.136.141 – 10.40.136.142 | 10.40.136.143 |
| 37 | 10.40.136.144/30 | 10.40.136.145 – 10.40.136.146 | 10.40.136.147 |
| 38 | 10.40.136.148/30 | 10.40.136.149 – 10.40.136.150 | 10.40.136.151 |
| 39 | 10.40.136.152/30 | 10.40.136.153 – 10.40.136.154 | 10.40.136.155 |
| 40 | 10.40.136.156/30 | 10.40.136.157 – 10.40.136.158 | 10.40.136.159 |
| 41 | 10.40.136.160/30 | 10.40.136.161 – 10.40.136.162 | 10.40.136.163 |
| 42 | 10.40.136.164/30 | 10.40.136.165 – 10.40.136.166 | 10.40.136.167 |
| 43 | 10.40.136.168/30 | 10.40.136.169 – 10.40.136.170 | 10.40.136.171 |
| 44 | 10.40.136.172/30 | 10.40.136.173 – 10.40.136.174 | 10.40.136.175 |
| 45 | 10.40.136.176/30 | 10.40.136.177 – 10.40.136.178 | 10.40.136.179 |
| 46 | 10.40.136.180/30 | 10.40.136.181 – 10.40.136.182 | 10.40.136.183 |
| 47 | 10.40.136.184/30 | 10.40.136.185 – 10.40.136.186 | 10.40.136.187 |
| 48 | 10.40.136.188/30 | 10.40.136.189 – 10.40.136.190 | 10.40.136.191 |
| 49 | 10.40.136.192/30 | 10.40.136.193 – 10.40.136.194 | 10.40.136.195 |
| 50 | 10.40.136.196/30 | 10.40.136.197 – 10.40.136.198 | 10.40.136.199 |
| 51 | 10.40.136.200/30 | 10.40.136.201 – 10.40.136.202 | 10.40.136.203 |
| 52 | 10.40.136.204/30 | 10.40.136.205 – 10.40.136.206 | 10.40.136.207 |
| 53 | 10.40.136.208/30 | 10.40.136.209 – 10.40.136.210 | 10.40.136.211 |
| 54 | 10.40.136.212/30 | 10.40.136.213 – 10.40.136.214 | 10.40.136.215 |
| 55 | 10.40.136.216/30 | 10.40.136.217 – 10.40.136.218 | 10.40.136.219 |
| 56 | 10.40.136.220/30 | 10.40.136.221 – 10.40.136.222 | 10.40.136.223 |
| 57 | 10.40.136.224/30 | 10.40.136.225 – 10.40.136.226 | 10.40.136.227 |
| 58 | 10.40.136.228/30 | 10.40.136.229 – 10.40.136.230 | 10.40.136.231 |
| 59 | 10.40.136.232/30 | 10.40.136.233 – 10.40.136.234 | 10.40.136.235 |
| 60 | 10.40.136.236/30 | 10.40.136.237 – 10.40.136.238 | 10.40.136.239 |
| 61 | 10.40.136.240/30 | 10.40.136.241 – 10.40.136.242 | 10.40.136.243 |
| 62 | 10.40.136.244/30 | 10.40.136.245 – 10.40.136.246 | 10.40.136.247 |
| 63 | 10.40.136.248/30 | 10.40.136.249 – 10.40.136.250 | 10.40.136.251 |
| 64 | 10.40.136.252/30 | 10.40.136.253 – 10.40.136.254 | 10.40.136.255 |
| 65 | 10.40.137.0/30 | 10.40.137.1 – 10.40.137.2 | 10.40.137.3 |
| 66 | 10.40.137.4/30 | 10.40.137.5 – 10.40.137.6 | 10.40.137.7 |
| 67 | 10.40.137.8/30 | 10.40.137.9 – 10.40.137.10 | 10.40.137.11 |
| 68 | 10.40.137.12/30 | 10.40.137.13 – 10.40.137.14 | 10.40.137.15 |
| 69 | 10.40.137.16/30 | 10.40.137.17 – 10.40.137.18 | 10.40.137.19 |
| 70 | 10.40.137.20/30 | 10.40.137.21 – 10.40.137.22 | 10.40.137.23 |
| 71 | 10.40.137.24/30 | 10.40.137.25 – 10.40.137.26 | 10.40.137.27 |
| 72 | 10.40.137.28/30 | 10.40.137.29 – 10.40.137.30 | 10.40.137.31 |
| 73 | 10.40.137.32/30 | 10.40.137.33 – 10.40.137.34 | 10.40.137.35 |
| 74 | 10.40.137.36/30 | 10.40.137.37 – 10.40.137.38 | 10.40.137.39 |
| 75 | 10.40.137.40/30 | 10.40.137.41 – 10.40.137.42 | 10.40.137.43 |
| 76 | 10.40.137.44/30 | 10.40.137.45 – 10.40.137.46 | 10.40.137.47 |
| 77 | 10.40.137.48/30 | 10.40.137.49 – 10.40.137.50 | 10.40.137.51 |
| 78 | 10.40.137.52/30 | 10.40.137.53 – 10.40.137.54 | 10.40.137.55 |
| 79 | 10.40.137.56/30 | 10.40.137.57 – 10.40.137.58 | 10.40.137.59 |
| 80 | 10.40.137.60/30 | 10.40.137.61 – 10.40.137.62 | 10.40.137.63 |
| 81 | 10.40.137.64/30 | 10.40.137.65 – 10.40.137.66 | 10.40.137.67 |
| 82 | 10.40.137.68/30 | 10.40.137.69 – 10.40.137.70 | 10.40.137.71 |
| 83 | 10.40.137.72/30 | 10.40.137.73 – 10.40.137.74 | 10.40.137.75 |
| 84 | 10.40.137.76/30 | 10.40.137.77 – 10.40.137.78 | 10.40.137.79 |
| 85 | 10.40.137.80/30 | 10.40.137.81 – 10.40.137.82 | 10.40.137.83 |
| 86 | 10.40.137.84/30 | 10.40.137.85 – 10.40.137.86 | 10.40.137.87 |
| 87 | 10.40.137.88/30 | 10.40.137.89 – 10.40.137.90 | 10.40.137.91 |
| 88 | 10.40.137.92/30 | 10.40.137.93 – 10.40.137.94 | 10.40.137.95 |
| 89 | 10.40.137.96/30 | 10.40.137.97 – 10.40.137.98 | 10.40.137.99 |
| 90 | 10.40.137.100/30 | 10.40.137.101 – 10.40.137.102 | 10.40.137.103 |
| 91 | 10.40.137.104/30 | 10.40.137.105 – 10.40.137.106 | 10.40.137.107 |
| 92 | 10.40.137.108/30 | 10.40.137.109 – 10.40.137.110 | 10.40.137.111 |
| 93 | 10.40.137.112/30 | 10.40.137.113 – 10.40.137.114 | 10.40.137.115 |
| 94 | 10.40.137.116/30 | 10.40.137.117 – 10.40.137.118 | 10.40.137.119 |
| 95 | 10.40.137.120/30 | 10.40.137.121 – 10.40.137.122 | 10.40.137.123 |
| 96 | 10.40.137.124/30 | 10.40.137.125 – 10.40.137.126 | 10.40.137.127 |
| 97 | 10.40.137.128/30 | 10.40.137.129 – 10.40.137.130 | 10.40.137.131 |
| 98 | 10.40.137.132/30 | 10.40.137.133 – 10.40.137.134 | 10.40.137.135 |
| 99 | 10.40.137.136/30 | 10.40.137.137 – 10.40.137.138 | 10.40.137.139 |
| 100 | 10.40.137.140/30 | 10.40.137.141 – 10.40.137.142 | 10.40.137.143 |
| 101 | 10.40.137.144/30 | 10.40.137.145 – 10.40.137.146 | 10.40.137.147 |
| 102 | 10.40.137.148/30 | 10.40.137.149 – 10.40.137.150 | 10.40.137.151 |
| 103 | 10.40.137.152/30 | 10.40.137.153 – 10.40.137.154 | 10.40.137.155 |
| 104 | 10.40.137.156/30 | 10.40.137.157 – 10.40.137.158 | 10.40.137.159 |
| 105 | 10.40.137.160/30 | 10.40.137.161 – 10.40.137.162 | 10.40.137.163 |
| 106 | 10.40.137.164/30 | 10.40.137.165 – 10.40.137.166 | 10.40.137.167 |
| 107 | 10.40.137.168/30 | 10.40.137.169 – 10.40.137.170 | 10.40.137.171 |
| 108 | 10.40.137.172/30 | 10.40.137.173 – 10.40.137.174 | 10.40.137.175 |
| 109 | 10.40.137.176/30 | 10.40.137.177 – 10.40.137.178 | 10.40.137.179 |
| 110 | 10.40.137.180/30 | 10.40.137.181 – 10.40.137.182 | 10.40.137.183 |
| 111 | 10.40.137.184/30 | 10.40.137.185 – 10.40.137.186 | 10.40.137.187 |
| 112 | 10.40.137.188/30 | 10.40.137.189 – 10.40.137.190 | 10.40.137.191 |
| 113 | 10.40.137.192/30 | 10.40.137.193 – 10.40.137.194 | 10.40.137.195 |
| 114 | 10.40.137.196/30 | 10.40.137.197 – 10.40.137.198 | 10.40.137.199 |
| 115 | 10.40.137.200/30 | 10.40.137.201 – 10.40.137.202 | 10.40.137.203 |
| 116 | 10.40.137.204/30 | 10.40.137.205 – 10.40.137.206 | 10.40.137.207 |
| 117 | 10.40.137.208/30 | 10.40.137.209 – 10.40.137.210 | 10.40.137.211 |
| 118 | 10.40.137.212/30 | 10.40.137.213 – 10.40.137.214 | 10.40.137.215 |
| 119 | 10.40.137.216/30 | 10.40.137.217 – 10.40.137.218 | 10.40.137.219 |
| 120 | 10.40.137.220/30 | 10.40.137.221 – 10.40.137.222 | 10.40.137.223 |
| 121 | 10.40.137.224/30 | 10.40.137.225 – 10.40.137.226 | 10.40.137.227 |
| 122 | 10.40.137.228/30 | 10.40.137.229 – 10.40.137.230 | 10.40.137.231 |
| 123 | 10.40.137.232/30 | 10.40.137.233 – 10.40.137.234 | 10.40.137.235 |
| 124 | 10.40.137.236/30 | 10.40.137.237 – 10.40.137.238 | 10.40.137.239 |
| 125 | 10.40.137.240/30 | 10.40.137.241 – 10.40.137.242 | 10.40.137.243 |
| 126 | 10.40.137.244/30 | 10.40.137.245 – 10.40.137.246 | 10.40.137.247 |
| 127 | 10.40.137.248/30 | 10.40.137.249 – 10.40.137.250 | 10.40.137.251 |
| 128 | 10.40.137.252/30 | 10.40.137.253 – 10.40.137.254 | 10.40.137.255 |
| 129 | 10.40.138.0/30 | 10.40.138.1 – 10.40.138.2 | 10.40.138.3 |
| 130 | 10.40.138.4/30 | 10.40.138.5 – 10.40.138.6 | 10.40.138.7 |
| 131 | 10.40.138.8/30 | 10.40.138.9 – 10.40.138.10 | 10.40.138.11 |
| 132 | 10.40.138.12/30 | 10.40.138.13 – 10.40.138.14 | 10.40.138.15 |
| 133 | 10.40.138.16/30 | 10.40.138.17 – 10.40.138.18 | 10.40.138.19 |
| 134 | 10.40.138.20/30 | 10.40.138.21 – 10.40.138.22 | 10.40.138.23 |
| 135 | 10.40.138.24/30 | 10.40.138.25 – 10.40.138.26 | 10.40.138.27 |
| 136 | 10.40.138.28/30 | 10.40.138.29 – 10.40.138.30 | 10.40.138.31 |
| 137 | 10.40.138.32/30 | 10.40.138.33 – 10.40.138.34 | 10.40.138.35 |
| 138 | 10.40.138.36/30 | 10.40.138.37 – 10.40.138.38 | 10.40.138.39 |
| 139 | 10.40.138.40/30 | 10.40.138.41 – 10.40.138.42 | 10.40.138.43 |
| 140 | 10.40.138.44/30 | 10.40.138.45 – 10.40.138.46 | 10.40.138.47 |
| 141 | 10.40.138.48/30 | 10.40.138.49 – 10.40.138.50 | 10.40.138.51 |
| 142 | 10.40.138.52/30 | 10.40.138.53 – 10.40.138.54 | 10.40.138.55 |
| 143 | 10.40.138.56/30 | 10.40.138.57 – 10.40.138.58 | 10.40.138.59 |
| 144 | 10.40.138.60/30 | 10.40.138.61 – 10.40.138.62 | 10.40.138.63 |
| 145 | 10.40.138.64/30 | 10.40.138.65 – 10.40.138.66 | 10.40.138.67 |
| 146 | 10.40.138.68/30 | 10.40.138.69 – 10.40.138.70 | 10.40.138.71 |
| 147 | 10.40.138.72/30 | 10.40.138.73 – 10.40.138.74 | 10.40.138.75 |
| 148 | 10.40.138.76/30 | 10.40.138.77 – 10.40.138.78 | 10.40.138.79 |
| 149 | 10.40.138.80/30 | 10.40.138.81 – 10.40.138.82 | 10.40.138.83 |
| 150 | 10.40.138.84/30 | 10.40.138.85 – 10.40.138.86 | 10.40.138.87 |
| 151 | 10.40.138.88/30 | 10.40.138.89 – 10.40.138.90 | 10.40.138.91 |
| 152 | 10.40.138.92/30 | 10.40.138.93 – 10.40.138.94 | 10.40.138.95 |
| 153 | 10.40.138.96/30 | 10.40.138.97 – 10.40.138.98 | 10.40.138.99 |
| 154 | 10.40.138.100/30 | 10.40.138.101 – 10.40.138.102 | 10.40.138.103 |
| 155 | 10.40.138.104/30 | 10.40.138.105 – 10.40.138.106 | 10.40.138.107 |
| 156 | 10.40.138.108/30 | 10.40.138.109 – 10.40.138.110 | 10.40.138.111 |
| 157 | 10.40.138.112/30 | 10.40.138.113 – 10.40.138.114 | 10.40.138.115 |
| 158 | 10.40.138.116/30 | 10.40.138.117 – 10.40.138.118 | 10.40.138.119 |
| 159 | 10.40.138.120/30 | 10.40.138.121 – 10.40.138.122 | 10.40.138.123 |
| 160 | 10.40.138.124/30 | 10.40.138.125 – 10.40.138.126 | 10.40.138.127 |
| 161 | 10.40.138.128/30 | 10.40.138.129 – 10.40.138.130 | 10.40.138.131 |
| 162 | 10.40.138.132/30 | 10.40.138.133 – 10.40.138.134 | 10.40.138.135 |
| 163 | 10.40.138.136/30 | 10.40.138.137 – 10.40.138.138 | 10.40.138.139 |
| 164 | 10.40.138.140/30 | 10.40.138.141 – 10.40.138.142 | 10.40.138.143 |
| 165 | 10.40.138.144/30 | 10.40.138.145 – 10.40.138.146 | 10.40.138.147 |
| 166 | 10.40.138.148/30 | 10.40.138.149 – 10.40.138.150 | 10.40.138.151 |
| 167 | 10.40.138.152/30 | 10.40.138.153 – 10.40.138.154 | 10.40.138.155 |
| 168 | 10.40.138.156/30 | 10.40.138.157 – 10.40.138.158 | 10.40.138.159 |
| 169 | 10.40.138.160/30 | 10.40.138.161 – 10.40.138.162 | 10.40.138.163 |
| 170 | 10.40.138.164/30 | 10.40.138.165 – 10.40.138.166 | 10.40.138.167 |
| 171 | 10.40.138.168/30 | 10.40.138.169 – 10.40.138.170 | 10.40.138.171 |
| 172 | 10.40.138.172/30 | 10.40.138.173 – 10.40.138.174 | 10.40.138.175 |
| 173 | 10.40.138.176/30 | 10.40.138.177 – 10.40.138.178 | 10.40.138.179 |
| 174 | 10.40.138.180/30 | 10.40.138.181 – 10.40.138.182 | 10.40.138.183 |
| 175 | 10.40.138.184/30 | 10.40.138.185 – 10.40.138.186 | 10.40.138.187 |
| 176 | 10.40.138.188/30 | 10.40.138.189 – 10.40.138.190 | 10.40.138.191 |
| 177 | 10.40.138.192/30 | 10.40.138.193 – 10.40.138.194 | 10.40.138.195 |
| 178 | 10.40.138.196/30 | 10.40.138.197 – 10.40.138.198 | 10.40.138.199 |
| 179 | 10.40.138.200/30 | 10.40.138.201 – 10.40.138.202 | 10.40.138.203 |
| 180 | 10.40.138.204/30 | 10.40.138.205 – 10.40.138.206 | 10.40.138.207 |
| 181 | 10.40.138.208/30 | 10.40.138.209 – 10.40.138.210 | 10.40.138.211 |
| 182 | 10.40.138.212/30 | 10.40.138.213 – 10.40.138.214 | 10.40.138.215 |
| 183 | 10.40.138.216/30 | 10.40.138.217 – 10.40.138.218 | 10.40.138.219 |
| 184 | 10.40.138.220/30 | 10.40.138.221 – 10.40.138.222 | 10.40.138.223 |
| 185 | 10.40.138.224/30 | 10.40.138.225 – 10.40.138.226 | 10.40.138.227 |
| 186 | 10.40.138.228/30 | 10.40.138.229 – 10.40.138.230 | 10.40.138.231 |
| 187 | 10.40.138.232/30 | 10.40.138.233 – 10.40.138.234 | 10.40.138.235 |
| 188 | 10.40.138.236/30 | 10.40.138.237 – 10.40.138.238 | 10.40.138.239 |
| 189 | 10.40.138.240/30 | 10.40.138.241 – 10.40.138.242 | 10.40.138.243 |
| 190 | 10.40.138.244/30 | 10.40.138.245 – 10.40.138.246 | 10.40.138.247 |
| 191 | 10.40.138.248/30 | 10.40.138.249 – 10.40.138.250 | 10.40.138.251 |
| 192 | 10.40.138.252/30 | 10.40.138.253 – 10.40.138.254 | 10.40.138.255 |
| 193 | 10.40.139.0/30 | 10.40.139.1 – 10.40.139.2 | 10.40.139.3 |
| 194 | 10.40.139.4/30 | 10.40.139.5 – 10.40.139.6 | 10.40.139.7 |
| 195 | 10.40.139.8/30 | 10.40.139.9 – 10.40.139.10 | 10.40.139.11 |
| 196 | 10.40.139.12/30 | 10.40.139.13 – 10.40.139.14 | 10.40.139.15 |
| 197 | 10.40.139.16/30 | 10.40.139.17 – 10.40.139.18 | 10.40.139.19 |
| 198 | 10.40.139.20/30 | 10.40.139.21 – 10.40.139.22 | 10.40.139.23 |
| 199 | 10.40.139.24/30 | 10.40.139.25 – 10.40.139.26 | 10.40.139.27 |
| 200 | 10.40.139.28/30 | 10.40.139.29 – 10.40.139.30 | 10.40.139.31 |
| 201 | 10.40.139.32/30 | 10.40.139.33 – 10.40.139.34 | 10.40.139.35 |
| 202 | 10.40.139.36/30 | 10.40.139.37 – 10.40.139.38 | 10.40.139.39 |
| 203 | 10.40.139.40/30 | 10.40.139.41 – 10.40.139.42 | 10.40.139.43 |
| 204 | 10.40.139.44/30 | 10.40.139.45 – 10.40.139.46 | 10.40.139.47 |
| 205 | 10.40.139.48/30 | 10.40.139.49 – 10.40.139.50 | 10.40.139.51 |
| 206 | 10.40.139.52/30 | 10.40.139.53 – 10.40.139.54 | 10.40.139.55 |
| 207 | 10.40.139.56/30 | 10.40.139.57 – 10.40.139.58 | 10.40.139.59 |
| 208 | 10.40.139.60/30 | 10.40.139.61 – 10.40.139.62 | 10.40.139.63 |
| 209 | 10.40.139.64/30 | 10.40.139.65 – 10.40.139.66 | 10.40.139.67 |
| 210 | 10.40.139.68/30 | 10.40.139.69 – 10.40.139.70 | 10.40.139.71 |
| 211 | 10.40.139.72/30 | 10.40.139.73 – 10.40.139.74 | 10.40.139.75 |
| 212 | 10.40.139.76/30 | 10.40.139.77 – 10.40.139.78 | 10.40.139.79 |
| 213 | 10.40.139.80/30 | 10.40.139.81 – 10.40.139.82 | 10.40.139.83 |
| 214 | 10.40.139.84/30 | 10.40.139.85 – 10.40.139.86 | 10.40.139.87 |
| 215 | 10.40.139.88/30 | 10.40.139.89 – 10.40.139.90 | 10.40.139.91 |
| 216 | 10.40.139.92/30 | 10.40.139.93 – 10.40.139.94 | 10.40.139.95 |
| 217 | 10.40.139.96/30 | 10.40.139.97 – 10.40.139.98 | 10.40.139.99 |
| 218 | 10.40.139.100/30 | 10.40.139.101 – 10.40.139.102 | 10.40.139.103 |
| 219 | 10.40.139.104/30 | 10.40.139.105 – 10.40.139.106 | 10.40.139.107 |
| 220 | 10.40.139.108/30 | 10.40.139.109 – 10.40.139.110 | 10.40.139.111 |
| 221 | 10.40.139.112/30 | 10.40.139.113 – 10.40.139.114 | 10.40.139.115 |
| 222 | 10.40.139.116/30 | 10.40.139.117 – 10.40.139.118 | 10.40.139.119 |
| 223 | 10.40.139.120/30 | 10.40.139.121 – 10.40.139.122 | 10.40.139.123 |
| 224 | 10.40.139.124/30 | 10.40.139.125 – 10.40.139.126 | 10.40.139.127 |
| 225 | 10.40.139.128/30 | 10.40.139.129 – 10.40.139.130 | 10.40.139.131 |
| 226 | 10.40.139.132/30 | 10.40.139.133 – 10.40.139.134 | 10.40.139.135 |
| 227 | 10.40.139.136/30 | 10.40.139.137 – 10.40.139.138 | 10.40.139.139 |
| 228 | 10.40.139.140/30 | 10.40.139.141 – 10.40.139.142 | 10.40.139.143 |
| 229 | 10.40.139.144/30 | 10.40.139.145 – 10.40.139.146 | 10.40.139.147 |
| 230 | 10.40.139.148/30 | 10.40.139.149 – 10.40.139.150 | 10.40.139.151 |
| 231 | 10.40.139.152/30 | 10.40.139.153 – 10.40.139.154 | 10.40.139.155 |
| 232 | 10.40.139.156/30 | 10.40.139.157 – 10.40.139.158 | 10.40.139.159 |
| 233 | 10.40.139.160/30 | 10.40.139.161 – 10.40.139.162 | 10.40.139.163 |
| 234 | 10.40.139.164/30 | 10.40.139.165 – 10.40.139.166 | 10.40.139.167 |
| 235 | 10.40.139.168/30 | 10.40.139.169 – 10.40.139.170 | 10.40.139.171 |
| 236 | 10.40.139.172/30 | 10.40.139.173 – 10.40.139.174 | 10.40.139.175 |
| 237 | 10.40.139.176/30 | 10.40.139.177 – 10.40.139.178 | 10.40.139.179 |
| 238 | 10.40.139.180/30 | 10.40.139.181 – 10.40.139.182 | 10.40.139.183 |
| 239 | 10.40.139.184/30 | 10.40.139.185 – 10.40.139.186 | 10.40.139.187 |
| 240 | 10.40.139.188/30 | 10.40.139.189 – 10.40.139.190 | 10.40.139.191 |
| 241 | 10.40.139.192/30 | 10.40.139.193 – 10.40.139.194 | 10.40.139.195 |
| 242 | 10.40.139.196/30 | 10.40.139.197 – 10.40.139.198 | 10.40.139.199 |
| 243 | 10.40.139.200/30 | 10.40.139.201 – 10.40.139.202 | 10.40.139.203 |
| 244 | 10.40.139.204/30 | 10.40.139.205 – 10.40.139.206 | 10.40.139.207 |
| 245 | 10.40.139.208/30 | 10.40.139.209 – 10.40.139.210 | 10.40.139.211 |
| 246 | 10.40.139.212/30 | 10.40.139.213 – 10.40.139.214 | 10.40.139.215 |
| 247 | 10.40.139.216/30 | 10.40.139.217 – 10.40.139.218 | 10.40.139.219 |
| 248 | 10.40.139.220/30 | 10.40.139.221 – 10.40.139.222 | 10.40.139.223 |
| 249 | 10.40.139.224/30 | 10.40.139.225 – 10.40.139.226 | 10.40.139.227 |
| 250 | 10.40.139.228/30 | 10.40.139.229 – 10.40.139.230 | 10.40.139.231 |
| 251 | 10.40.139.232/30 | 10.40.139.233 – 10.40.139.234 | 10.40.139.235 |
| 252 | 10.40.139.236/30 | 10.40.139.237 – 10.40.139.238 | 10.40.139.239 |
| 253 | 10.40.139.240/30 | 10.40.139.241 – 10.40.139.242 | 10.40.139.243 |
| 254 | 10.40.139.244/30 | 10.40.139.245 – 10.40.139.246 | 10.40.139.247 |
| 255 | 10.40.139.248/30 | 10.40.139.249 – 10.40.139.250 | 10.40.139.251 |
| 256 | 10.40.139.252/30 | 10.40.139.253 – 10.40.139.254 | 10.40.139.255 |
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.