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)10.13.240.0/20
network10.13.240.0/20
broadcast10.13.255.255
first host10.13.240.1
last host10.13.255.254
subnet mask255.255.240.0
wildcard0.0.15.255
addresses4,096
usable hosts4,094
classA
ipcalc 10.13.240.0/20
address00001010.00001101.11110000.00000000
subnet mask11111111.11111111.11110000.00000000
network00001010.00001101.11110000.00000000
broadcast00001010.00001101.11111111.11111111
green = network part, grey = host part
hex0x0a0df000
decimal168685568
reverse dns0.240.13.10.in-addr.arpa
ipv4-mapped::ffff:a0d:f000
/20 split into /29 · 512 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.13.240.0/29 | 10.13.240.1 – 10.13.240.6 | 10.13.240.7 |
| 2 | 10.13.240.8/29 | 10.13.240.9 – 10.13.240.14 | 10.13.240.15 |
| 3 | 10.13.240.16/29 | 10.13.240.17 – 10.13.240.22 | 10.13.240.23 |
| 4 | 10.13.240.24/29 | 10.13.240.25 – 10.13.240.30 | 10.13.240.31 |
| 5 | 10.13.240.32/29 | 10.13.240.33 – 10.13.240.38 | 10.13.240.39 |
| 6 | 10.13.240.40/29 | 10.13.240.41 – 10.13.240.46 | 10.13.240.47 |
| 7 | 10.13.240.48/29 | 10.13.240.49 – 10.13.240.54 | 10.13.240.55 |
| 8 | 10.13.240.56/29 | 10.13.240.57 – 10.13.240.62 | 10.13.240.63 |
| 9 | 10.13.240.64/29 | 10.13.240.65 – 10.13.240.70 | 10.13.240.71 |
| 10 | 10.13.240.72/29 | 10.13.240.73 – 10.13.240.78 | 10.13.240.79 |
| 11 | 10.13.240.80/29 | 10.13.240.81 – 10.13.240.86 | 10.13.240.87 |
| 12 | 10.13.240.88/29 | 10.13.240.89 – 10.13.240.94 | 10.13.240.95 |
| 13 | 10.13.240.96/29 | 10.13.240.97 – 10.13.240.102 | 10.13.240.103 |
| 14 | 10.13.240.104/29 | 10.13.240.105 – 10.13.240.110 | 10.13.240.111 |
| 15 | 10.13.240.112/29 | 10.13.240.113 – 10.13.240.118 | 10.13.240.119 |
| 16 | 10.13.240.120/29 | 10.13.240.121 – 10.13.240.126 | 10.13.240.127 |
| 17 | 10.13.240.128/29 | 10.13.240.129 – 10.13.240.134 | 10.13.240.135 |
| 18 | 10.13.240.136/29 | 10.13.240.137 – 10.13.240.142 | 10.13.240.143 |
| 19 | 10.13.240.144/29 | 10.13.240.145 – 10.13.240.150 | 10.13.240.151 |
| 20 | 10.13.240.152/29 | 10.13.240.153 – 10.13.240.158 | 10.13.240.159 |
| 21 | 10.13.240.160/29 | 10.13.240.161 – 10.13.240.166 | 10.13.240.167 |
| 22 | 10.13.240.168/29 | 10.13.240.169 – 10.13.240.174 | 10.13.240.175 |
| 23 | 10.13.240.176/29 | 10.13.240.177 – 10.13.240.182 | 10.13.240.183 |
| 24 | 10.13.240.184/29 | 10.13.240.185 – 10.13.240.190 | 10.13.240.191 |
| 25 | 10.13.240.192/29 | 10.13.240.193 – 10.13.240.198 | 10.13.240.199 |
| 26 | 10.13.240.200/29 | 10.13.240.201 – 10.13.240.206 | 10.13.240.207 |
| 27 | 10.13.240.208/29 | 10.13.240.209 – 10.13.240.214 | 10.13.240.215 |
| 28 | 10.13.240.216/29 | 10.13.240.217 – 10.13.240.222 | 10.13.240.223 |
| 29 | 10.13.240.224/29 | 10.13.240.225 – 10.13.240.230 | 10.13.240.231 |
| 30 | 10.13.240.232/29 | 10.13.240.233 – 10.13.240.238 | 10.13.240.239 |
| 31 | 10.13.240.240/29 | 10.13.240.241 – 10.13.240.246 | 10.13.240.247 |
| 32 | 10.13.240.248/29 | 10.13.240.249 – 10.13.240.254 | 10.13.240.255 |
| 33 | 10.13.241.0/29 | 10.13.241.1 – 10.13.241.6 | 10.13.241.7 |
| 34 | 10.13.241.8/29 | 10.13.241.9 – 10.13.241.14 | 10.13.241.15 |
| 35 | 10.13.241.16/29 | 10.13.241.17 – 10.13.241.22 | 10.13.241.23 |
| 36 | 10.13.241.24/29 | 10.13.241.25 – 10.13.241.30 | 10.13.241.31 |
| 37 | 10.13.241.32/29 | 10.13.241.33 – 10.13.241.38 | 10.13.241.39 |
| 38 | 10.13.241.40/29 | 10.13.241.41 – 10.13.241.46 | 10.13.241.47 |
| 39 | 10.13.241.48/29 | 10.13.241.49 – 10.13.241.54 | 10.13.241.55 |
| 40 | 10.13.241.56/29 | 10.13.241.57 – 10.13.241.62 | 10.13.241.63 |
| 41 | 10.13.241.64/29 | 10.13.241.65 – 10.13.241.70 | 10.13.241.71 |
| 42 | 10.13.241.72/29 | 10.13.241.73 – 10.13.241.78 | 10.13.241.79 |
| 43 | 10.13.241.80/29 | 10.13.241.81 – 10.13.241.86 | 10.13.241.87 |
| 44 | 10.13.241.88/29 | 10.13.241.89 – 10.13.241.94 | 10.13.241.95 |
| 45 | 10.13.241.96/29 | 10.13.241.97 – 10.13.241.102 | 10.13.241.103 |
| 46 | 10.13.241.104/29 | 10.13.241.105 – 10.13.241.110 | 10.13.241.111 |
| 47 | 10.13.241.112/29 | 10.13.241.113 – 10.13.241.118 | 10.13.241.119 |
| 48 | 10.13.241.120/29 | 10.13.241.121 – 10.13.241.126 | 10.13.241.127 |
| 49 | 10.13.241.128/29 | 10.13.241.129 – 10.13.241.134 | 10.13.241.135 |
| 50 | 10.13.241.136/29 | 10.13.241.137 – 10.13.241.142 | 10.13.241.143 |
| 51 | 10.13.241.144/29 | 10.13.241.145 – 10.13.241.150 | 10.13.241.151 |
| 52 | 10.13.241.152/29 | 10.13.241.153 – 10.13.241.158 | 10.13.241.159 |
| 53 | 10.13.241.160/29 | 10.13.241.161 – 10.13.241.166 | 10.13.241.167 |
| 54 | 10.13.241.168/29 | 10.13.241.169 – 10.13.241.174 | 10.13.241.175 |
| 55 | 10.13.241.176/29 | 10.13.241.177 – 10.13.241.182 | 10.13.241.183 |
| 56 | 10.13.241.184/29 | 10.13.241.185 – 10.13.241.190 | 10.13.241.191 |
| 57 | 10.13.241.192/29 | 10.13.241.193 – 10.13.241.198 | 10.13.241.199 |
| 58 | 10.13.241.200/29 | 10.13.241.201 – 10.13.241.206 | 10.13.241.207 |
| 59 | 10.13.241.208/29 | 10.13.241.209 – 10.13.241.214 | 10.13.241.215 |
| 60 | 10.13.241.216/29 | 10.13.241.217 – 10.13.241.222 | 10.13.241.223 |
| 61 | 10.13.241.224/29 | 10.13.241.225 – 10.13.241.230 | 10.13.241.231 |
| 62 | 10.13.241.232/29 | 10.13.241.233 – 10.13.241.238 | 10.13.241.239 |
| 63 | 10.13.241.240/29 | 10.13.241.241 – 10.13.241.246 | 10.13.241.247 |
| 64 | 10.13.241.248/29 | 10.13.241.249 – 10.13.241.254 | 10.13.241.255 |
| 65 | 10.13.242.0/29 | 10.13.242.1 – 10.13.242.6 | 10.13.242.7 |
| 66 | 10.13.242.8/29 | 10.13.242.9 – 10.13.242.14 | 10.13.242.15 |
| 67 | 10.13.242.16/29 | 10.13.242.17 – 10.13.242.22 | 10.13.242.23 |
| 68 | 10.13.242.24/29 | 10.13.242.25 – 10.13.242.30 | 10.13.242.31 |
| 69 | 10.13.242.32/29 | 10.13.242.33 – 10.13.242.38 | 10.13.242.39 |
| 70 | 10.13.242.40/29 | 10.13.242.41 – 10.13.242.46 | 10.13.242.47 |
| 71 | 10.13.242.48/29 | 10.13.242.49 – 10.13.242.54 | 10.13.242.55 |
| 72 | 10.13.242.56/29 | 10.13.242.57 – 10.13.242.62 | 10.13.242.63 |
| 73 | 10.13.242.64/29 | 10.13.242.65 – 10.13.242.70 | 10.13.242.71 |
| 74 | 10.13.242.72/29 | 10.13.242.73 – 10.13.242.78 | 10.13.242.79 |
| 75 | 10.13.242.80/29 | 10.13.242.81 – 10.13.242.86 | 10.13.242.87 |
| 76 | 10.13.242.88/29 | 10.13.242.89 – 10.13.242.94 | 10.13.242.95 |
| 77 | 10.13.242.96/29 | 10.13.242.97 – 10.13.242.102 | 10.13.242.103 |
| 78 | 10.13.242.104/29 | 10.13.242.105 – 10.13.242.110 | 10.13.242.111 |
| 79 | 10.13.242.112/29 | 10.13.242.113 – 10.13.242.118 | 10.13.242.119 |
| 80 | 10.13.242.120/29 | 10.13.242.121 – 10.13.242.126 | 10.13.242.127 |
| 81 | 10.13.242.128/29 | 10.13.242.129 – 10.13.242.134 | 10.13.242.135 |
| 82 | 10.13.242.136/29 | 10.13.242.137 – 10.13.242.142 | 10.13.242.143 |
| 83 | 10.13.242.144/29 | 10.13.242.145 – 10.13.242.150 | 10.13.242.151 |
| 84 | 10.13.242.152/29 | 10.13.242.153 – 10.13.242.158 | 10.13.242.159 |
| 85 | 10.13.242.160/29 | 10.13.242.161 – 10.13.242.166 | 10.13.242.167 |
| 86 | 10.13.242.168/29 | 10.13.242.169 – 10.13.242.174 | 10.13.242.175 |
| 87 | 10.13.242.176/29 | 10.13.242.177 – 10.13.242.182 | 10.13.242.183 |
| 88 | 10.13.242.184/29 | 10.13.242.185 – 10.13.242.190 | 10.13.242.191 |
| 89 | 10.13.242.192/29 | 10.13.242.193 – 10.13.242.198 | 10.13.242.199 |
| 90 | 10.13.242.200/29 | 10.13.242.201 – 10.13.242.206 | 10.13.242.207 |
| 91 | 10.13.242.208/29 | 10.13.242.209 – 10.13.242.214 | 10.13.242.215 |
| 92 | 10.13.242.216/29 | 10.13.242.217 – 10.13.242.222 | 10.13.242.223 |
| 93 | 10.13.242.224/29 | 10.13.242.225 – 10.13.242.230 | 10.13.242.231 |
| 94 | 10.13.242.232/29 | 10.13.242.233 – 10.13.242.238 | 10.13.242.239 |
| 95 | 10.13.242.240/29 | 10.13.242.241 – 10.13.242.246 | 10.13.242.247 |
| 96 | 10.13.242.248/29 | 10.13.242.249 – 10.13.242.254 | 10.13.242.255 |
| 97 | 10.13.243.0/29 | 10.13.243.1 – 10.13.243.6 | 10.13.243.7 |
| 98 | 10.13.243.8/29 | 10.13.243.9 – 10.13.243.14 | 10.13.243.15 |
| 99 | 10.13.243.16/29 | 10.13.243.17 – 10.13.243.22 | 10.13.243.23 |
| 100 | 10.13.243.24/29 | 10.13.243.25 – 10.13.243.30 | 10.13.243.31 |
| 101 | 10.13.243.32/29 | 10.13.243.33 – 10.13.243.38 | 10.13.243.39 |
| 102 | 10.13.243.40/29 | 10.13.243.41 – 10.13.243.46 | 10.13.243.47 |
| 103 | 10.13.243.48/29 | 10.13.243.49 – 10.13.243.54 | 10.13.243.55 |
| 104 | 10.13.243.56/29 | 10.13.243.57 – 10.13.243.62 | 10.13.243.63 |
| 105 | 10.13.243.64/29 | 10.13.243.65 – 10.13.243.70 | 10.13.243.71 |
| 106 | 10.13.243.72/29 | 10.13.243.73 – 10.13.243.78 | 10.13.243.79 |
| 107 | 10.13.243.80/29 | 10.13.243.81 – 10.13.243.86 | 10.13.243.87 |
| 108 | 10.13.243.88/29 | 10.13.243.89 – 10.13.243.94 | 10.13.243.95 |
| 109 | 10.13.243.96/29 | 10.13.243.97 – 10.13.243.102 | 10.13.243.103 |
| 110 | 10.13.243.104/29 | 10.13.243.105 – 10.13.243.110 | 10.13.243.111 |
| 111 | 10.13.243.112/29 | 10.13.243.113 – 10.13.243.118 | 10.13.243.119 |
| 112 | 10.13.243.120/29 | 10.13.243.121 – 10.13.243.126 | 10.13.243.127 |
| 113 | 10.13.243.128/29 | 10.13.243.129 – 10.13.243.134 | 10.13.243.135 |
| 114 | 10.13.243.136/29 | 10.13.243.137 – 10.13.243.142 | 10.13.243.143 |
| 115 | 10.13.243.144/29 | 10.13.243.145 – 10.13.243.150 | 10.13.243.151 |
| 116 | 10.13.243.152/29 | 10.13.243.153 – 10.13.243.158 | 10.13.243.159 |
| 117 | 10.13.243.160/29 | 10.13.243.161 – 10.13.243.166 | 10.13.243.167 |
| 118 | 10.13.243.168/29 | 10.13.243.169 – 10.13.243.174 | 10.13.243.175 |
| 119 | 10.13.243.176/29 | 10.13.243.177 – 10.13.243.182 | 10.13.243.183 |
| 120 | 10.13.243.184/29 | 10.13.243.185 – 10.13.243.190 | 10.13.243.191 |
| 121 | 10.13.243.192/29 | 10.13.243.193 – 10.13.243.198 | 10.13.243.199 |
| 122 | 10.13.243.200/29 | 10.13.243.201 – 10.13.243.206 | 10.13.243.207 |
| 123 | 10.13.243.208/29 | 10.13.243.209 – 10.13.243.214 | 10.13.243.215 |
| 124 | 10.13.243.216/29 | 10.13.243.217 – 10.13.243.222 | 10.13.243.223 |
| 125 | 10.13.243.224/29 | 10.13.243.225 – 10.13.243.230 | 10.13.243.231 |
| 126 | 10.13.243.232/29 | 10.13.243.233 – 10.13.243.238 | 10.13.243.239 |
| 127 | 10.13.243.240/29 | 10.13.243.241 – 10.13.243.246 | 10.13.243.247 |
| 128 | 10.13.243.248/29 | 10.13.243.249 – 10.13.243.254 | 10.13.243.255 |
| 129 | 10.13.244.0/29 | 10.13.244.1 – 10.13.244.6 | 10.13.244.7 |
| 130 | 10.13.244.8/29 | 10.13.244.9 – 10.13.244.14 | 10.13.244.15 |
| 131 | 10.13.244.16/29 | 10.13.244.17 – 10.13.244.22 | 10.13.244.23 |
| 132 | 10.13.244.24/29 | 10.13.244.25 – 10.13.244.30 | 10.13.244.31 |
| 133 | 10.13.244.32/29 | 10.13.244.33 – 10.13.244.38 | 10.13.244.39 |
| 134 | 10.13.244.40/29 | 10.13.244.41 – 10.13.244.46 | 10.13.244.47 |
| 135 | 10.13.244.48/29 | 10.13.244.49 – 10.13.244.54 | 10.13.244.55 |
| 136 | 10.13.244.56/29 | 10.13.244.57 – 10.13.244.62 | 10.13.244.63 |
| 137 | 10.13.244.64/29 | 10.13.244.65 – 10.13.244.70 | 10.13.244.71 |
| 138 | 10.13.244.72/29 | 10.13.244.73 – 10.13.244.78 | 10.13.244.79 |
| 139 | 10.13.244.80/29 | 10.13.244.81 – 10.13.244.86 | 10.13.244.87 |
| 140 | 10.13.244.88/29 | 10.13.244.89 – 10.13.244.94 | 10.13.244.95 |
| 141 | 10.13.244.96/29 | 10.13.244.97 – 10.13.244.102 | 10.13.244.103 |
| 142 | 10.13.244.104/29 | 10.13.244.105 – 10.13.244.110 | 10.13.244.111 |
| 143 | 10.13.244.112/29 | 10.13.244.113 – 10.13.244.118 | 10.13.244.119 |
| 144 | 10.13.244.120/29 | 10.13.244.121 – 10.13.244.126 | 10.13.244.127 |
| 145 | 10.13.244.128/29 | 10.13.244.129 – 10.13.244.134 | 10.13.244.135 |
| 146 | 10.13.244.136/29 | 10.13.244.137 – 10.13.244.142 | 10.13.244.143 |
| 147 | 10.13.244.144/29 | 10.13.244.145 – 10.13.244.150 | 10.13.244.151 |
| 148 | 10.13.244.152/29 | 10.13.244.153 – 10.13.244.158 | 10.13.244.159 |
| 149 | 10.13.244.160/29 | 10.13.244.161 – 10.13.244.166 | 10.13.244.167 |
| 150 | 10.13.244.168/29 | 10.13.244.169 – 10.13.244.174 | 10.13.244.175 |
| 151 | 10.13.244.176/29 | 10.13.244.177 – 10.13.244.182 | 10.13.244.183 |
| 152 | 10.13.244.184/29 | 10.13.244.185 – 10.13.244.190 | 10.13.244.191 |
| 153 | 10.13.244.192/29 | 10.13.244.193 – 10.13.244.198 | 10.13.244.199 |
| 154 | 10.13.244.200/29 | 10.13.244.201 – 10.13.244.206 | 10.13.244.207 |
| 155 | 10.13.244.208/29 | 10.13.244.209 – 10.13.244.214 | 10.13.244.215 |
| 156 | 10.13.244.216/29 | 10.13.244.217 – 10.13.244.222 | 10.13.244.223 |
| 157 | 10.13.244.224/29 | 10.13.244.225 – 10.13.244.230 | 10.13.244.231 |
| 158 | 10.13.244.232/29 | 10.13.244.233 – 10.13.244.238 | 10.13.244.239 |
| 159 | 10.13.244.240/29 | 10.13.244.241 – 10.13.244.246 | 10.13.244.247 |
| 160 | 10.13.244.248/29 | 10.13.244.249 – 10.13.244.254 | 10.13.244.255 |
| 161 | 10.13.245.0/29 | 10.13.245.1 – 10.13.245.6 | 10.13.245.7 |
| 162 | 10.13.245.8/29 | 10.13.245.9 – 10.13.245.14 | 10.13.245.15 |
| 163 | 10.13.245.16/29 | 10.13.245.17 – 10.13.245.22 | 10.13.245.23 |
| 164 | 10.13.245.24/29 | 10.13.245.25 – 10.13.245.30 | 10.13.245.31 |
| 165 | 10.13.245.32/29 | 10.13.245.33 – 10.13.245.38 | 10.13.245.39 |
| 166 | 10.13.245.40/29 | 10.13.245.41 – 10.13.245.46 | 10.13.245.47 |
| 167 | 10.13.245.48/29 | 10.13.245.49 – 10.13.245.54 | 10.13.245.55 |
| 168 | 10.13.245.56/29 | 10.13.245.57 – 10.13.245.62 | 10.13.245.63 |
| 169 | 10.13.245.64/29 | 10.13.245.65 – 10.13.245.70 | 10.13.245.71 |
| 170 | 10.13.245.72/29 | 10.13.245.73 – 10.13.245.78 | 10.13.245.79 |
| 171 | 10.13.245.80/29 | 10.13.245.81 – 10.13.245.86 | 10.13.245.87 |
| 172 | 10.13.245.88/29 | 10.13.245.89 – 10.13.245.94 | 10.13.245.95 |
| 173 | 10.13.245.96/29 | 10.13.245.97 – 10.13.245.102 | 10.13.245.103 |
| 174 | 10.13.245.104/29 | 10.13.245.105 – 10.13.245.110 | 10.13.245.111 |
| 175 | 10.13.245.112/29 | 10.13.245.113 – 10.13.245.118 | 10.13.245.119 |
| 176 | 10.13.245.120/29 | 10.13.245.121 – 10.13.245.126 | 10.13.245.127 |
| 177 | 10.13.245.128/29 | 10.13.245.129 – 10.13.245.134 | 10.13.245.135 |
| 178 | 10.13.245.136/29 | 10.13.245.137 – 10.13.245.142 | 10.13.245.143 |
| 179 | 10.13.245.144/29 | 10.13.245.145 – 10.13.245.150 | 10.13.245.151 |
| 180 | 10.13.245.152/29 | 10.13.245.153 – 10.13.245.158 | 10.13.245.159 |
| 181 | 10.13.245.160/29 | 10.13.245.161 – 10.13.245.166 | 10.13.245.167 |
| 182 | 10.13.245.168/29 | 10.13.245.169 – 10.13.245.174 | 10.13.245.175 |
| 183 | 10.13.245.176/29 | 10.13.245.177 – 10.13.245.182 | 10.13.245.183 |
| 184 | 10.13.245.184/29 | 10.13.245.185 – 10.13.245.190 | 10.13.245.191 |
| 185 | 10.13.245.192/29 | 10.13.245.193 – 10.13.245.198 | 10.13.245.199 |
| 186 | 10.13.245.200/29 | 10.13.245.201 – 10.13.245.206 | 10.13.245.207 |
| 187 | 10.13.245.208/29 | 10.13.245.209 – 10.13.245.214 | 10.13.245.215 |
| 188 | 10.13.245.216/29 | 10.13.245.217 – 10.13.245.222 | 10.13.245.223 |
| 189 | 10.13.245.224/29 | 10.13.245.225 – 10.13.245.230 | 10.13.245.231 |
| 190 | 10.13.245.232/29 | 10.13.245.233 – 10.13.245.238 | 10.13.245.239 |
| 191 | 10.13.245.240/29 | 10.13.245.241 – 10.13.245.246 | 10.13.245.247 |
| 192 | 10.13.245.248/29 | 10.13.245.249 – 10.13.245.254 | 10.13.245.255 |
| 193 | 10.13.246.0/29 | 10.13.246.1 – 10.13.246.6 | 10.13.246.7 |
| 194 | 10.13.246.8/29 | 10.13.246.9 – 10.13.246.14 | 10.13.246.15 |
| 195 | 10.13.246.16/29 | 10.13.246.17 – 10.13.246.22 | 10.13.246.23 |
| 196 | 10.13.246.24/29 | 10.13.246.25 – 10.13.246.30 | 10.13.246.31 |
| 197 | 10.13.246.32/29 | 10.13.246.33 – 10.13.246.38 | 10.13.246.39 |
| 198 | 10.13.246.40/29 | 10.13.246.41 – 10.13.246.46 | 10.13.246.47 |
| 199 | 10.13.246.48/29 | 10.13.246.49 – 10.13.246.54 | 10.13.246.55 |
| 200 | 10.13.246.56/29 | 10.13.246.57 – 10.13.246.62 | 10.13.246.63 |
| 201 | 10.13.246.64/29 | 10.13.246.65 – 10.13.246.70 | 10.13.246.71 |
| 202 | 10.13.246.72/29 | 10.13.246.73 – 10.13.246.78 | 10.13.246.79 |
| 203 | 10.13.246.80/29 | 10.13.246.81 – 10.13.246.86 | 10.13.246.87 |
| 204 | 10.13.246.88/29 | 10.13.246.89 – 10.13.246.94 | 10.13.246.95 |
| 205 | 10.13.246.96/29 | 10.13.246.97 – 10.13.246.102 | 10.13.246.103 |
| 206 | 10.13.246.104/29 | 10.13.246.105 – 10.13.246.110 | 10.13.246.111 |
| 207 | 10.13.246.112/29 | 10.13.246.113 – 10.13.246.118 | 10.13.246.119 |
| 208 | 10.13.246.120/29 | 10.13.246.121 – 10.13.246.126 | 10.13.246.127 |
| 209 | 10.13.246.128/29 | 10.13.246.129 – 10.13.246.134 | 10.13.246.135 |
| 210 | 10.13.246.136/29 | 10.13.246.137 – 10.13.246.142 | 10.13.246.143 |
| 211 | 10.13.246.144/29 | 10.13.246.145 – 10.13.246.150 | 10.13.246.151 |
| 212 | 10.13.246.152/29 | 10.13.246.153 – 10.13.246.158 | 10.13.246.159 |
| 213 | 10.13.246.160/29 | 10.13.246.161 – 10.13.246.166 | 10.13.246.167 |
| 214 | 10.13.246.168/29 | 10.13.246.169 – 10.13.246.174 | 10.13.246.175 |
| 215 | 10.13.246.176/29 | 10.13.246.177 – 10.13.246.182 | 10.13.246.183 |
| 216 | 10.13.246.184/29 | 10.13.246.185 – 10.13.246.190 | 10.13.246.191 |
| 217 | 10.13.246.192/29 | 10.13.246.193 – 10.13.246.198 | 10.13.246.199 |
| 218 | 10.13.246.200/29 | 10.13.246.201 – 10.13.246.206 | 10.13.246.207 |
| 219 | 10.13.246.208/29 | 10.13.246.209 – 10.13.246.214 | 10.13.246.215 |
| 220 | 10.13.246.216/29 | 10.13.246.217 – 10.13.246.222 | 10.13.246.223 |
| 221 | 10.13.246.224/29 | 10.13.246.225 – 10.13.246.230 | 10.13.246.231 |
| 222 | 10.13.246.232/29 | 10.13.246.233 – 10.13.246.238 | 10.13.246.239 |
| 223 | 10.13.246.240/29 | 10.13.246.241 – 10.13.246.246 | 10.13.246.247 |
| 224 | 10.13.246.248/29 | 10.13.246.249 – 10.13.246.254 | 10.13.246.255 |
| 225 | 10.13.247.0/29 | 10.13.247.1 – 10.13.247.6 | 10.13.247.7 |
| 226 | 10.13.247.8/29 | 10.13.247.9 – 10.13.247.14 | 10.13.247.15 |
| 227 | 10.13.247.16/29 | 10.13.247.17 – 10.13.247.22 | 10.13.247.23 |
| 228 | 10.13.247.24/29 | 10.13.247.25 – 10.13.247.30 | 10.13.247.31 |
| 229 | 10.13.247.32/29 | 10.13.247.33 – 10.13.247.38 | 10.13.247.39 |
| 230 | 10.13.247.40/29 | 10.13.247.41 – 10.13.247.46 | 10.13.247.47 |
| 231 | 10.13.247.48/29 | 10.13.247.49 – 10.13.247.54 | 10.13.247.55 |
| 232 | 10.13.247.56/29 | 10.13.247.57 – 10.13.247.62 | 10.13.247.63 |
| 233 | 10.13.247.64/29 | 10.13.247.65 – 10.13.247.70 | 10.13.247.71 |
| 234 | 10.13.247.72/29 | 10.13.247.73 – 10.13.247.78 | 10.13.247.79 |
| 235 | 10.13.247.80/29 | 10.13.247.81 – 10.13.247.86 | 10.13.247.87 |
| 236 | 10.13.247.88/29 | 10.13.247.89 – 10.13.247.94 | 10.13.247.95 |
| 237 | 10.13.247.96/29 | 10.13.247.97 – 10.13.247.102 | 10.13.247.103 |
| 238 | 10.13.247.104/29 | 10.13.247.105 – 10.13.247.110 | 10.13.247.111 |
| 239 | 10.13.247.112/29 | 10.13.247.113 – 10.13.247.118 | 10.13.247.119 |
| 240 | 10.13.247.120/29 | 10.13.247.121 – 10.13.247.126 | 10.13.247.127 |
| 241 | 10.13.247.128/29 | 10.13.247.129 – 10.13.247.134 | 10.13.247.135 |
| 242 | 10.13.247.136/29 | 10.13.247.137 – 10.13.247.142 | 10.13.247.143 |
| 243 | 10.13.247.144/29 | 10.13.247.145 – 10.13.247.150 | 10.13.247.151 |
| 244 | 10.13.247.152/29 | 10.13.247.153 – 10.13.247.158 | 10.13.247.159 |
| 245 | 10.13.247.160/29 | 10.13.247.161 – 10.13.247.166 | 10.13.247.167 |
| 246 | 10.13.247.168/29 | 10.13.247.169 – 10.13.247.174 | 10.13.247.175 |
| 247 | 10.13.247.176/29 | 10.13.247.177 – 10.13.247.182 | 10.13.247.183 |
| 248 | 10.13.247.184/29 | 10.13.247.185 – 10.13.247.190 | 10.13.247.191 |
| 249 | 10.13.247.192/29 | 10.13.247.193 – 10.13.247.198 | 10.13.247.199 |
| 250 | 10.13.247.200/29 | 10.13.247.201 – 10.13.247.206 | 10.13.247.207 |
| 251 | 10.13.247.208/29 | 10.13.247.209 – 10.13.247.214 | 10.13.247.215 |
| 252 | 10.13.247.216/29 | 10.13.247.217 – 10.13.247.222 | 10.13.247.223 |
| 253 | 10.13.247.224/29 | 10.13.247.225 – 10.13.247.230 | 10.13.247.231 |
| 254 | 10.13.247.232/29 | 10.13.247.233 – 10.13.247.238 | 10.13.247.239 |
| 255 | 10.13.247.240/29 | 10.13.247.241 – 10.13.247.246 | 10.13.247.247 |
| 256 | 10.13.247.248/29 | 10.13.247.249 – 10.13.247.254 | 10.13.247.255 |
showing 256 of 512
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.