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)10.4.64.0/20
network10.4.64.0/20
broadcast10.4.79.255
first host10.4.64.1
last host10.4.79.254
subnet mask255.255.240.0
wildcard0.0.15.255
addresses4,096
usable hosts4,094
classA
ipcalc 10.4.64.0/20
address00001010.00000100.01000000.00000000
subnet mask11111111.11111111.11110000.00000000
network00001010.00000100.01000000.00000000
broadcast00001010.00000100.01001111.11111111
green = network part, grey = host part
hex0x0a044000
decimal168050688
reverse dns0.64.4.10.in-addr.arpa
ipv4-mapped::ffff:a04:4000
/20 split into /30 · 1,024 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.4.64.0/30 | 10.4.64.1 – 10.4.64.2 | 10.4.64.3 |
| 2 | 10.4.64.4/30 | 10.4.64.5 – 10.4.64.6 | 10.4.64.7 |
| 3 | 10.4.64.8/30 | 10.4.64.9 – 10.4.64.10 | 10.4.64.11 |
| 4 | 10.4.64.12/30 | 10.4.64.13 – 10.4.64.14 | 10.4.64.15 |
| 5 | 10.4.64.16/30 | 10.4.64.17 – 10.4.64.18 | 10.4.64.19 |
| 6 | 10.4.64.20/30 | 10.4.64.21 – 10.4.64.22 | 10.4.64.23 |
| 7 | 10.4.64.24/30 | 10.4.64.25 – 10.4.64.26 | 10.4.64.27 |
| 8 | 10.4.64.28/30 | 10.4.64.29 – 10.4.64.30 | 10.4.64.31 |
| 9 | 10.4.64.32/30 | 10.4.64.33 – 10.4.64.34 | 10.4.64.35 |
| 10 | 10.4.64.36/30 | 10.4.64.37 – 10.4.64.38 | 10.4.64.39 |
| 11 | 10.4.64.40/30 | 10.4.64.41 – 10.4.64.42 | 10.4.64.43 |
| 12 | 10.4.64.44/30 | 10.4.64.45 – 10.4.64.46 | 10.4.64.47 |
| 13 | 10.4.64.48/30 | 10.4.64.49 – 10.4.64.50 | 10.4.64.51 |
| 14 | 10.4.64.52/30 | 10.4.64.53 – 10.4.64.54 | 10.4.64.55 |
| 15 | 10.4.64.56/30 | 10.4.64.57 – 10.4.64.58 | 10.4.64.59 |
| 16 | 10.4.64.60/30 | 10.4.64.61 – 10.4.64.62 | 10.4.64.63 |
| 17 | 10.4.64.64/30 | 10.4.64.65 – 10.4.64.66 | 10.4.64.67 |
| 18 | 10.4.64.68/30 | 10.4.64.69 – 10.4.64.70 | 10.4.64.71 |
| 19 | 10.4.64.72/30 | 10.4.64.73 – 10.4.64.74 | 10.4.64.75 |
| 20 | 10.4.64.76/30 | 10.4.64.77 – 10.4.64.78 | 10.4.64.79 |
| 21 | 10.4.64.80/30 | 10.4.64.81 – 10.4.64.82 | 10.4.64.83 |
| 22 | 10.4.64.84/30 | 10.4.64.85 – 10.4.64.86 | 10.4.64.87 |
| 23 | 10.4.64.88/30 | 10.4.64.89 – 10.4.64.90 | 10.4.64.91 |
| 24 | 10.4.64.92/30 | 10.4.64.93 – 10.4.64.94 | 10.4.64.95 |
| 25 | 10.4.64.96/30 | 10.4.64.97 – 10.4.64.98 | 10.4.64.99 |
| 26 | 10.4.64.100/30 | 10.4.64.101 – 10.4.64.102 | 10.4.64.103 |
| 27 | 10.4.64.104/30 | 10.4.64.105 – 10.4.64.106 | 10.4.64.107 |
| 28 | 10.4.64.108/30 | 10.4.64.109 – 10.4.64.110 | 10.4.64.111 |
| 29 | 10.4.64.112/30 | 10.4.64.113 – 10.4.64.114 | 10.4.64.115 |
| 30 | 10.4.64.116/30 | 10.4.64.117 – 10.4.64.118 | 10.4.64.119 |
| 31 | 10.4.64.120/30 | 10.4.64.121 – 10.4.64.122 | 10.4.64.123 |
| 32 | 10.4.64.124/30 | 10.4.64.125 – 10.4.64.126 | 10.4.64.127 |
| 33 | 10.4.64.128/30 | 10.4.64.129 – 10.4.64.130 | 10.4.64.131 |
| 34 | 10.4.64.132/30 | 10.4.64.133 – 10.4.64.134 | 10.4.64.135 |
| 35 | 10.4.64.136/30 | 10.4.64.137 – 10.4.64.138 | 10.4.64.139 |
| 36 | 10.4.64.140/30 | 10.4.64.141 – 10.4.64.142 | 10.4.64.143 |
| 37 | 10.4.64.144/30 | 10.4.64.145 – 10.4.64.146 | 10.4.64.147 |
| 38 | 10.4.64.148/30 | 10.4.64.149 – 10.4.64.150 | 10.4.64.151 |
| 39 | 10.4.64.152/30 | 10.4.64.153 – 10.4.64.154 | 10.4.64.155 |
| 40 | 10.4.64.156/30 | 10.4.64.157 – 10.4.64.158 | 10.4.64.159 |
| 41 | 10.4.64.160/30 | 10.4.64.161 – 10.4.64.162 | 10.4.64.163 |
| 42 | 10.4.64.164/30 | 10.4.64.165 – 10.4.64.166 | 10.4.64.167 |
| 43 | 10.4.64.168/30 | 10.4.64.169 – 10.4.64.170 | 10.4.64.171 |
| 44 | 10.4.64.172/30 | 10.4.64.173 – 10.4.64.174 | 10.4.64.175 |
| 45 | 10.4.64.176/30 | 10.4.64.177 – 10.4.64.178 | 10.4.64.179 |
| 46 | 10.4.64.180/30 | 10.4.64.181 – 10.4.64.182 | 10.4.64.183 |
| 47 | 10.4.64.184/30 | 10.4.64.185 – 10.4.64.186 | 10.4.64.187 |
| 48 | 10.4.64.188/30 | 10.4.64.189 – 10.4.64.190 | 10.4.64.191 |
| 49 | 10.4.64.192/30 | 10.4.64.193 – 10.4.64.194 | 10.4.64.195 |
| 50 | 10.4.64.196/30 | 10.4.64.197 – 10.4.64.198 | 10.4.64.199 |
| 51 | 10.4.64.200/30 | 10.4.64.201 – 10.4.64.202 | 10.4.64.203 |
| 52 | 10.4.64.204/30 | 10.4.64.205 – 10.4.64.206 | 10.4.64.207 |
| 53 | 10.4.64.208/30 | 10.4.64.209 – 10.4.64.210 | 10.4.64.211 |
| 54 | 10.4.64.212/30 | 10.4.64.213 – 10.4.64.214 | 10.4.64.215 |
| 55 | 10.4.64.216/30 | 10.4.64.217 – 10.4.64.218 | 10.4.64.219 |
| 56 | 10.4.64.220/30 | 10.4.64.221 – 10.4.64.222 | 10.4.64.223 |
| 57 | 10.4.64.224/30 | 10.4.64.225 – 10.4.64.226 | 10.4.64.227 |
| 58 | 10.4.64.228/30 | 10.4.64.229 – 10.4.64.230 | 10.4.64.231 |
| 59 | 10.4.64.232/30 | 10.4.64.233 – 10.4.64.234 | 10.4.64.235 |
| 60 | 10.4.64.236/30 | 10.4.64.237 – 10.4.64.238 | 10.4.64.239 |
| 61 | 10.4.64.240/30 | 10.4.64.241 – 10.4.64.242 | 10.4.64.243 |
| 62 | 10.4.64.244/30 | 10.4.64.245 – 10.4.64.246 | 10.4.64.247 |
| 63 | 10.4.64.248/30 | 10.4.64.249 – 10.4.64.250 | 10.4.64.251 |
| 64 | 10.4.64.252/30 | 10.4.64.253 – 10.4.64.254 | 10.4.64.255 |
| 65 | 10.4.65.0/30 | 10.4.65.1 – 10.4.65.2 | 10.4.65.3 |
| 66 | 10.4.65.4/30 | 10.4.65.5 – 10.4.65.6 | 10.4.65.7 |
| 67 | 10.4.65.8/30 | 10.4.65.9 – 10.4.65.10 | 10.4.65.11 |
| 68 | 10.4.65.12/30 | 10.4.65.13 – 10.4.65.14 | 10.4.65.15 |
| 69 | 10.4.65.16/30 | 10.4.65.17 – 10.4.65.18 | 10.4.65.19 |
| 70 | 10.4.65.20/30 | 10.4.65.21 – 10.4.65.22 | 10.4.65.23 |
| 71 | 10.4.65.24/30 | 10.4.65.25 – 10.4.65.26 | 10.4.65.27 |
| 72 | 10.4.65.28/30 | 10.4.65.29 – 10.4.65.30 | 10.4.65.31 |
| 73 | 10.4.65.32/30 | 10.4.65.33 – 10.4.65.34 | 10.4.65.35 |
| 74 | 10.4.65.36/30 | 10.4.65.37 – 10.4.65.38 | 10.4.65.39 |
| 75 | 10.4.65.40/30 | 10.4.65.41 – 10.4.65.42 | 10.4.65.43 |
| 76 | 10.4.65.44/30 | 10.4.65.45 – 10.4.65.46 | 10.4.65.47 |
| 77 | 10.4.65.48/30 | 10.4.65.49 – 10.4.65.50 | 10.4.65.51 |
| 78 | 10.4.65.52/30 | 10.4.65.53 – 10.4.65.54 | 10.4.65.55 |
| 79 | 10.4.65.56/30 | 10.4.65.57 – 10.4.65.58 | 10.4.65.59 |
| 80 | 10.4.65.60/30 | 10.4.65.61 – 10.4.65.62 | 10.4.65.63 |
| 81 | 10.4.65.64/30 | 10.4.65.65 – 10.4.65.66 | 10.4.65.67 |
| 82 | 10.4.65.68/30 | 10.4.65.69 – 10.4.65.70 | 10.4.65.71 |
| 83 | 10.4.65.72/30 | 10.4.65.73 – 10.4.65.74 | 10.4.65.75 |
| 84 | 10.4.65.76/30 | 10.4.65.77 – 10.4.65.78 | 10.4.65.79 |
| 85 | 10.4.65.80/30 | 10.4.65.81 – 10.4.65.82 | 10.4.65.83 |
| 86 | 10.4.65.84/30 | 10.4.65.85 – 10.4.65.86 | 10.4.65.87 |
| 87 | 10.4.65.88/30 | 10.4.65.89 – 10.4.65.90 | 10.4.65.91 |
| 88 | 10.4.65.92/30 | 10.4.65.93 – 10.4.65.94 | 10.4.65.95 |
| 89 | 10.4.65.96/30 | 10.4.65.97 – 10.4.65.98 | 10.4.65.99 |
| 90 | 10.4.65.100/30 | 10.4.65.101 – 10.4.65.102 | 10.4.65.103 |
| 91 | 10.4.65.104/30 | 10.4.65.105 – 10.4.65.106 | 10.4.65.107 |
| 92 | 10.4.65.108/30 | 10.4.65.109 – 10.4.65.110 | 10.4.65.111 |
| 93 | 10.4.65.112/30 | 10.4.65.113 – 10.4.65.114 | 10.4.65.115 |
| 94 | 10.4.65.116/30 | 10.4.65.117 – 10.4.65.118 | 10.4.65.119 |
| 95 | 10.4.65.120/30 | 10.4.65.121 – 10.4.65.122 | 10.4.65.123 |
| 96 | 10.4.65.124/30 | 10.4.65.125 – 10.4.65.126 | 10.4.65.127 |
| 97 | 10.4.65.128/30 | 10.4.65.129 – 10.4.65.130 | 10.4.65.131 |
| 98 | 10.4.65.132/30 | 10.4.65.133 – 10.4.65.134 | 10.4.65.135 |
| 99 | 10.4.65.136/30 | 10.4.65.137 – 10.4.65.138 | 10.4.65.139 |
| 100 | 10.4.65.140/30 | 10.4.65.141 – 10.4.65.142 | 10.4.65.143 |
| 101 | 10.4.65.144/30 | 10.4.65.145 – 10.4.65.146 | 10.4.65.147 |
| 102 | 10.4.65.148/30 | 10.4.65.149 – 10.4.65.150 | 10.4.65.151 |
| 103 | 10.4.65.152/30 | 10.4.65.153 – 10.4.65.154 | 10.4.65.155 |
| 104 | 10.4.65.156/30 | 10.4.65.157 – 10.4.65.158 | 10.4.65.159 |
| 105 | 10.4.65.160/30 | 10.4.65.161 – 10.4.65.162 | 10.4.65.163 |
| 106 | 10.4.65.164/30 | 10.4.65.165 – 10.4.65.166 | 10.4.65.167 |
| 107 | 10.4.65.168/30 | 10.4.65.169 – 10.4.65.170 | 10.4.65.171 |
| 108 | 10.4.65.172/30 | 10.4.65.173 – 10.4.65.174 | 10.4.65.175 |
| 109 | 10.4.65.176/30 | 10.4.65.177 – 10.4.65.178 | 10.4.65.179 |
| 110 | 10.4.65.180/30 | 10.4.65.181 – 10.4.65.182 | 10.4.65.183 |
| 111 | 10.4.65.184/30 | 10.4.65.185 – 10.4.65.186 | 10.4.65.187 |
| 112 | 10.4.65.188/30 | 10.4.65.189 – 10.4.65.190 | 10.4.65.191 |
| 113 | 10.4.65.192/30 | 10.4.65.193 – 10.4.65.194 | 10.4.65.195 |
| 114 | 10.4.65.196/30 | 10.4.65.197 – 10.4.65.198 | 10.4.65.199 |
| 115 | 10.4.65.200/30 | 10.4.65.201 – 10.4.65.202 | 10.4.65.203 |
| 116 | 10.4.65.204/30 | 10.4.65.205 – 10.4.65.206 | 10.4.65.207 |
| 117 | 10.4.65.208/30 | 10.4.65.209 – 10.4.65.210 | 10.4.65.211 |
| 118 | 10.4.65.212/30 | 10.4.65.213 – 10.4.65.214 | 10.4.65.215 |
| 119 | 10.4.65.216/30 | 10.4.65.217 – 10.4.65.218 | 10.4.65.219 |
| 120 | 10.4.65.220/30 | 10.4.65.221 – 10.4.65.222 | 10.4.65.223 |
| 121 | 10.4.65.224/30 | 10.4.65.225 – 10.4.65.226 | 10.4.65.227 |
| 122 | 10.4.65.228/30 | 10.4.65.229 – 10.4.65.230 | 10.4.65.231 |
| 123 | 10.4.65.232/30 | 10.4.65.233 – 10.4.65.234 | 10.4.65.235 |
| 124 | 10.4.65.236/30 | 10.4.65.237 – 10.4.65.238 | 10.4.65.239 |
| 125 | 10.4.65.240/30 | 10.4.65.241 – 10.4.65.242 | 10.4.65.243 |
| 126 | 10.4.65.244/30 | 10.4.65.245 – 10.4.65.246 | 10.4.65.247 |
| 127 | 10.4.65.248/30 | 10.4.65.249 – 10.4.65.250 | 10.4.65.251 |
| 128 | 10.4.65.252/30 | 10.4.65.253 – 10.4.65.254 | 10.4.65.255 |
| 129 | 10.4.66.0/30 | 10.4.66.1 – 10.4.66.2 | 10.4.66.3 |
| 130 | 10.4.66.4/30 | 10.4.66.5 – 10.4.66.6 | 10.4.66.7 |
| 131 | 10.4.66.8/30 | 10.4.66.9 – 10.4.66.10 | 10.4.66.11 |
| 132 | 10.4.66.12/30 | 10.4.66.13 – 10.4.66.14 | 10.4.66.15 |
| 133 | 10.4.66.16/30 | 10.4.66.17 – 10.4.66.18 | 10.4.66.19 |
| 134 | 10.4.66.20/30 | 10.4.66.21 – 10.4.66.22 | 10.4.66.23 |
| 135 | 10.4.66.24/30 | 10.4.66.25 – 10.4.66.26 | 10.4.66.27 |
| 136 | 10.4.66.28/30 | 10.4.66.29 – 10.4.66.30 | 10.4.66.31 |
| 137 | 10.4.66.32/30 | 10.4.66.33 – 10.4.66.34 | 10.4.66.35 |
| 138 | 10.4.66.36/30 | 10.4.66.37 – 10.4.66.38 | 10.4.66.39 |
| 139 | 10.4.66.40/30 | 10.4.66.41 – 10.4.66.42 | 10.4.66.43 |
| 140 | 10.4.66.44/30 | 10.4.66.45 – 10.4.66.46 | 10.4.66.47 |
| 141 | 10.4.66.48/30 | 10.4.66.49 – 10.4.66.50 | 10.4.66.51 |
| 142 | 10.4.66.52/30 | 10.4.66.53 – 10.4.66.54 | 10.4.66.55 |
| 143 | 10.4.66.56/30 | 10.4.66.57 – 10.4.66.58 | 10.4.66.59 |
| 144 | 10.4.66.60/30 | 10.4.66.61 – 10.4.66.62 | 10.4.66.63 |
| 145 | 10.4.66.64/30 | 10.4.66.65 – 10.4.66.66 | 10.4.66.67 |
| 146 | 10.4.66.68/30 | 10.4.66.69 – 10.4.66.70 | 10.4.66.71 |
| 147 | 10.4.66.72/30 | 10.4.66.73 – 10.4.66.74 | 10.4.66.75 |
| 148 | 10.4.66.76/30 | 10.4.66.77 – 10.4.66.78 | 10.4.66.79 |
| 149 | 10.4.66.80/30 | 10.4.66.81 – 10.4.66.82 | 10.4.66.83 |
| 150 | 10.4.66.84/30 | 10.4.66.85 – 10.4.66.86 | 10.4.66.87 |
| 151 | 10.4.66.88/30 | 10.4.66.89 – 10.4.66.90 | 10.4.66.91 |
| 152 | 10.4.66.92/30 | 10.4.66.93 – 10.4.66.94 | 10.4.66.95 |
| 153 | 10.4.66.96/30 | 10.4.66.97 – 10.4.66.98 | 10.4.66.99 |
| 154 | 10.4.66.100/30 | 10.4.66.101 – 10.4.66.102 | 10.4.66.103 |
| 155 | 10.4.66.104/30 | 10.4.66.105 – 10.4.66.106 | 10.4.66.107 |
| 156 | 10.4.66.108/30 | 10.4.66.109 – 10.4.66.110 | 10.4.66.111 |
| 157 | 10.4.66.112/30 | 10.4.66.113 – 10.4.66.114 | 10.4.66.115 |
| 158 | 10.4.66.116/30 | 10.4.66.117 – 10.4.66.118 | 10.4.66.119 |
| 159 | 10.4.66.120/30 | 10.4.66.121 – 10.4.66.122 | 10.4.66.123 |
| 160 | 10.4.66.124/30 | 10.4.66.125 – 10.4.66.126 | 10.4.66.127 |
| 161 | 10.4.66.128/30 | 10.4.66.129 – 10.4.66.130 | 10.4.66.131 |
| 162 | 10.4.66.132/30 | 10.4.66.133 – 10.4.66.134 | 10.4.66.135 |
| 163 | 10.4.66.136/30 | 10.4.66.137 – 10.4.66.138 | 10.4.66.139 |
| 164 | 10.4.66.140/30 | 10.4.66.141 – 10.4.66.142 | 10.4.66.143 |
| 165 | 10.4.66.144/30 | 10.4.66.145 – 10.4.66.146 | 10.4.66.147 |
| 166 | 10.4.66.148/30 | 10.4.66.149 – 10.4.66.150 | 10.4.66.151 |
| 167 | 10.4.66.152/30 | 10.4.66.153 – 10.4.66.154 | 10.4.66.155 |
| 168 | 10.4.66.156/30 | 10.4.66.157 – 10.4.66.158 | 10.4.66.159 |
| 169 | 10.4.66.160/30 | 10.4.66.161 – 10.4.66.162 | 10.4.66.163 |
| 170 | 10.4.66.164/30 | 10.4.66.165 – 10.4.66.166 | 10.4.66.167 |
| 171 | 10.4.66.168/30 | 10.4.66.169 – 10.4.66.170 | 10.4.66.171 |
| 172 | 10.4.66.172/30 | 10.4.66.173 – 10.4.66.174 | 10.4.66.175 |
| 173 | 10.4.66.176/30 | 10.4.66.177 – 10.4.66.178 | 10.4.66.179 |
| 174 | 10.4.66.180/30 | 10.4.66.181 – 10.4.66.182 | 10.4.66.183 |
| 175 | 10.4.66.184/30 | 10.4.66.185 – 10.4.66.186 | 10.4.66.187 |
| 176 | 10.4.66.188/30 | 10.4.66.189 – 10.4.66.190 | 10.4.66.191 |
| 177 | 10.4.66.192/30 | 10.4.66.193 – 10.4.66.194 | 10.4.66.195 |
| 178 | 10.4.66.196/30 | 10.4.66.197 – 10.4.66.198 | 10.4.66.199 |
| 179 | 10.4.66.200/30 | 10.4.66.201 – 10.4.66.202 | 10.4.66.203 |
| 180 | 10.4.66.204/30 | 10.4.66.205 – 10.4.66.206 | 10.4.66.207 |
| 181 | 10.4.66.208/30 | 10.4.66.209 – 10.4.66.210 | 10.4.66.211 |
| 182 | 10.4.66.212/30 | 10.4.66.213 – 10.4.66.214 | 10.4.66.215 |
| 183 | 10.4.66.216/30 | 10.4.66.217 – 10.4.66.218 | 10.4.66.219 |
| 184 | 10.4.66.220/30 | 10.4.66.221 – 10.4.66.222 | 10.4.66.223 |
| 185 | 10.4.66.224/30 | 10.4.66.225 – 10.4.66.226 | 10.4.66.227 |
| 186 | 10.4.66.228/30 | 10.4.66.229 – 10.4.66.230 | 10.4.66.231 |
| 187 | 10.4.66.232/30 | 10.4.66.233 – 10.4.66.234 | 10.4.66.235 |
| 188 | 10.4.66.236/30 | 10.4.66.237 – 10.4.66.238 | 10.4.66.239 |
| 189 | 10.4.66.240/30 | 10.4.66.241 – 10.4.66.242 | 10.4.66.243 |
| 190 | 10.4.66.244/30 | 10.4.66.245 – 10.4.66.246 | 10.4.66.247 |
| 191 | 10.4.66.248/30 | 10.4.66.249 – 10.4.66.250 | 10.4.66.251 |
| 192 | 10.4.66.252/30 | 10.4.66.253 – 10.4.66.254 | 10.4.66.255 |
| 193 | 10.4.67.0/30 | 10.4.67.1 – 10.4.67.2 | 10.4.67.3 |
| 194 | 10.4.67.4/30 | 10.4.67.5 – 10.4.67.6 | 10.4.67.7 |
| 195 | 10.4.67.8/30 | 10.4.67.9 – 10.4.67.10 | 10.4.67.11 |
| 196 | 10.4.67.12/30 | 10.4.67.13 – 10.4.67.14 | 10.4.67.15 |
| 197 | 10.4.67.16/30 | 10.4.67.17 – 10.4.67.18 | 10.4.67.19 |
| 198 | 10.4.67.20/30 | 10.4.67.21 – 10.4.67.22 | 10.4.67.23 |
| 199 | 10.4.67.24/30 | 10.4.67.25 – 10.4.67.26 | 10.4.67.27 |
| 200 | 10.4.67.28/30 | 10.4.67.29 – 10.4.67.30 | 10.4.67.31 |
| 201 | 10.4.67.32/30 | 10.4.67.33 – 10.4.67.34 | 10.4.67.35 |
| 202 | 10.4.67.36/30 | 10.4.67.37 – 10.4.67.38 | 10.4.67.39 |
| 203 | 10.4.67.40/30 | 10.4.67.41 – 10.4.67.42 | 10.4.67.43 |
| 204 | 10.4.67.44/30 | 10.4.67.45 – 10.4.67.46 | 10.4.67.47 |
| 205 | 10.4.67.48/30 | 10.4.67.49 – 10.4.67.50 | 10.4.67.51 |
| 206 | 10.4.67.52/30 | 10.4.67.53 – 10.4.67.54 | 10.4.67.55 |
| 207 | 10.4.67.56/30 | 10.4.67.57 – 10.4.67.58 | 10.4.67.59 |
| 208 | 10.4.67.60/30 | 10.4.67.61 – 10.4.67.62 | 10.4.67.63 |
| 209 | 10.4.67.64/30 | 10.4.67.65 – 10.4.67.66 | 10.4.67.67 |
| 210 | 10.4.67.68/30 | 10.4.67.69 – 10.4.67.70 | 10.4.67.71 |
| 211 | 10.4.67.72/30 | 10.4.67.73 – 10.4.67.74 | 10.4.67.75 |
| 212 | 10.4.67.76/30 | 10.4.67.77 – 10.4.67.78 | 10.4.67.79 |
| 213 | 10.4.67.80/30 | 10.4.67.81 – 10.4.67.82 | 10.4.67.83 |
| 214 | 10.4.67.84/30 | 10.4.67.85 – 10.4.67.86 | 10.4.67.87 |
| 215 | 10.4.67.88/30 | 10.4.67.89 – 10.4.67.90 | 10.4.67.91 |
| 216 | 10.4.67.92/30 | 10.4.67.93 – 10.4.67.94 | 10.4.67.95 |
| 217 | 10.4.67.96/30 | 10.4.67.97 – 10.4.67.98 | 10.4.67.99 |
| 218 | 10.4.67.100/30 | 10.4.67.101 – 10.4.67.102 | 10.4.67.103 |
| 219 | 10.4.67.104/30 | 10.4.67.105 – 10.4.67.106 | 10.4.67.107 |
| 220 | 10.4.67.108/30 | 10.4.67.109 – 10.4.67.110 | 10.4.67.111 |
| 221 | 10.4.67.112/30 | 10.4.67.113 – 10.4.67.114 | 10.4.67.115 |
| 222 | 10.4.67.116/30 | 10.4.67.117 – 10.4.67.118 | 10.4.67.119 |
| 223 | 10.4.67.120/30 | 10.4.67.121 – 10.4.67.122 | 10.4.67.123 |
| 224 | 10.4.67.124/30 | 10.4.67.125 – 10.4.67.126 | 10.4.67.127 |
| 225 | 10.4.67.128/30 | 10.4.67.129 – 10.4.67.130 | 10.4.67.131 |
| 226 | 10.4.67.132/30 | 10.4.67.133 – 10.4.67.134 | 10.4.67.135 |
| 227 | 10.4.67.136/30 | 10.4.67.137 – 10.4.67.138 | 10.4.67.139 |
| 228 | 10.4.67.140/30 | 10.4.67.141 – 10.4.67.142 | 10.4.67.143 |
| 229 | 10.4.67.144/30 | 10.4.67.145 – 10.4.67.146 | 10.4.67.147 |
| 230 | 10.4.67.148/30 | 10.4.67.149 – 10.4.67.150 | 10.4.67.151 |
| 231 | 10.4.67.152/30 | 10.4.67.153 – 10.4.67.154 | 10.4.67.155 |
| 232 | 10.4.67.156/30 | 10.4.67.157 – 10.4.67.158 | 10.4.67.159 |
| 233 | 10.4.67.160/30 | 10.4.67.161 – 10.4.67.162 | 10.4.67.163 |
| 234 | 10.4.67.164/30 | 10.4.67.165 – 10.4.67.166 | 10.4.67.167 |
| 235 | 10.4.67.168/30 | 10.4.67.169 – 10.4.67.170 | 10.4.67.171 |
| 236 | 10.4.67.172/30 | 10.4.67.173 – 10.4.67.174 | 10.4.67.175 |
| 237 | 10.4.67.176/30 | 10.4.67.177 – 10.4.67.178 | 10.4.67.179 |
| 238 | 10.4.67.180/30 | 10.4.67.181 – 10.4.67.182 | 10.4.67.183 |
| 239 | 10.4.67.184/30 | 10.4.67.185 – 10.4.67.186 | 10.4.67.187 |
| 240 | 10.4.67.188/30 | 10.4.67.189 – 10.4.67.190 | 10.4.67.191 |
| 241 | 10.4.67.192/30 | 10.4.67.193 – 10.4.67.194 | 10.4.67.195 |
| 242 | 10.4.67.196/30 | 10.4.67.197 – 10.4.67.198 | 10.4.67.199 |
| 243 | 10.4.67.200/30 | 10.4.67.201 – 10.4.67.202 | 10.4.67.203 |
| 244 | 10.4.67.204/30 | 10.4.67.205 – 10.4.67.206 | 10.4.67.207 |
| 245 | 10.4.67.208/30 | 10.4.67.209 – 10.4.67.210 | 10.4.67.211 |
| 246 | 10.4.67.212/30 | 10.4.67.213 – 10.4.67.214 | 10.4.67.215 |
| 247 | 10.4.67.216/30 | 10.4.67.217 – 10.4.67.218 | 10.4.67.219 |
| 248 | 10.4.67.220/30 | 10.4.67.221 – 10.4.67.222 | 10.4.67.223 |
| 249 | 10.4.67.224/30 | 10.4.67.225 – 10.4.67.226 | 10.4.67.227 |
| 250 | 10.4.67.228/30 | 10.4.67.229 – 10.4.67.230 | 10.4.67.231 |
| 251 | 10.4.67.232/30 | 10.4.67.233 – 10.4.67.234 | 10.4.67.235 |
| 252 | 10.4.67.236/30 | 10.4.67.237 – 10.4.67.238 | 10.4.67.239 |
| 253 | 10.4.67.240/30 | 10.4.67.241 – 10.4.67.242 | 10.4.67.243 |
| 254 | 10.4.67.244/30 | 10.4.67.245 – 10.4.67.246 | 10.4.67.247 |
| 255 | 10.4.67.248/30 | 10.4.67.249 – 10.4.67.250 | 10.4.67.251 |
| 256 | 10.4.67.252/30 | 10.4.67.253 – 10.4.67.254 | 10.4.67.255 |
showing 256 of 1,024
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 /20 |
|---|---|---|---|---|
| /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 | 1 |
| /21 | 255.255.248.0 | 2,048 | 2,046 | 2 split → |
| /22 | 255.255.252.0 | 1,024 | 1,022 | 4 split → |
| /23 | 255.255.254.0 | 512 | 510 | 8 split → |
| /24 | 255.255.255.0 | 256 | 254 | 16 split → |
| /25 | 255.255.255.128 | 128 | 126 | 32 split → |
| /26 | 255.255.255.192 | 64 | 62 | 64 split → |
| /27 | 255.255.255.224 | 32 | 30 | 128 split → |
| /28 | 255.255.255.240 | 16 | 14 | 256 split → |
| /29 | 255.255.255.248 | 8 | 6 | 512 split → |
| /30 | 255.255.255.252 | 4 | 2 | 1,024 split → |
| /31 | 255.255.255.254 | 2 | 2 | 2,048 split → |
| /32 | 255.255.255.255 | 1 | 1 | 4,096 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.