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)10.6.208.0/20
network10.6.208.0/20
broadcast10.6.223.255
first host10.6.208.1
last host10.6.223.254
subnet mask255.255.240.0
wildcard0.0.15.255
addresses4,096
usable hosts4,094
classA
ipcalc 10.6.208.0/20
address00001010.00000110.11010000.00000000
subnet mask11111111.11111111.11110000.00000000
network00001010.00000110.11010000.00000000
broadcast00001010.00000110.11011111.11111111
green = network part, grey = host part
hex0x0a06d000
decimal168218624
reverse dns0.208.6.10.in-addr.arpa
ipv4-mapped::ffff:a06:d000
/20 split into /28 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.6.208.0/28 | 10.6.208.1 – 10.6.208.14 | 10.6.208.15 |
| 2 | 10.6.208.16/28 | 10.6.208.17 – 10.6.208.30 | 10.6.208.31 |
| 3 | 10.6.208.32/28 | 10.6.208.33 – 10.6.208.46 | 10.6.208.47 |
| 4 | 10.6.208.48/28 | 10.6.208.49 – 10.6.208.62 | 10.6.208.63 |
| 5 | 10.6.208.64/28 | 10.6.208.65 – 10.6.208.78 | 10.6.208.79 |
| 6 | 10.6.208.80/28 | 10.6.208.81 – 10.6.208.94 | 10.6.208.95 |
| 7 | 10.6.208.96/28 | 10.6.208.97 – 10.6.208.110 | 10.6.208.111 |
| 8 | 10.6.208.112/28 | 10.6.208.113 – 10.6.208.126 | 10.6.208.127 |
| 9 | 10.6.208.128/28 | 10.6.208.129 – 10.6.208.142 | 10.6.208.143 |
| 10 | 10.6.208.144/28 | 10.6.208.145 – 10.6.208.158 | 10.6.208.159 |
| 11 | 10.6.208.160/28 | 10.6.208.161 – 10.6.208.174 | 10.6.208.175 |
| 12 | 10.6.208.176/28 | 10.6.208.177 – 10.6.208.190 | 10.6.208.191 |
| 13 | 10.6.208.192/28 | 10.6.208.193 – 10.6.208.206 | 10.6.208.207 |
| 14 | 10.6.208.208/28 | 10.6.208.209 – 10.6.208.222 | 10.6.208.223 |
| 15 | 10.6.208.224/28 | 10.6.208.225 – 10.6.208.238 | 10.6.208.239 |
| 16 | 10.6.208.240/28 | 10.6.208.241 – 10.6.208.254 | 10.6.208.255 |
| 17 | 10.6.209.0/28 | 10.6.209.1 – 10.6.209.14 | 10.6.209.15 |
| 18 | 10.6.209.16/28 | 10.6.209.17 – 10.6.209.30 | 10.6.209.31 |
| 19 | 10.6.209.32/28 | 10.6.209.33 – 10.6.209.46 | 10.6.209.47 |
| 20 | 10.6.209.48/28 | 10.6.209.49 – 10.6.209.62 | 10.6.209.63 |
| 21 | 10.6.209.64/28 | 10.6.209.65 – 10.6.209.78 | 10.6.209.79 |
| 22 | 10.6.209.80/28 | 10.6.209.81 – 10.6.209.94 | 10.6.209.95 |
| 23 | 10.6.209.96/28 | 10.6.209.97 – 10.6.209.110 | 10.6.209.111 |
| 24 | 10.6.209.112/28 | 10.6.209.113 – 10.6.209.126 | 10.6.209.127 |
| 25 | 10.6.209.128/28 | 10.6.209.129 – 10.6.209.142 | 10.6.209.143 |
| 26 | 10.6.209.144/28 | 10.6.209.145 – 10.6.209.158 | 10.6.209.159 |
| 27 | 10.6.209.160/28 | 10.6.209.161 – 10.6.209.174 | 10.6.209.175 |
| 28 | 10.6.209.176/28 | 10.6.209.177 – 10.6.209.190 | 10.6.209.191 |
| 29 | 10.6.209.192/28 | 10.6.209.193 – 10.6.209.206 | 10.6.209.207 |
| 30 | 10.6.209.208/28 | 10.6.209.209 – 10.6.209.222 | 10.6.209.223 |
| 31 | 10.6.209.224/28 | 10.6.209.225 – 10.6.209.238 | 10.6.209.239 |
| 32 | 10.6.209.240/28 | 10.6.209.241 – 10.6.209.254 | 10.6.209.255 |
| 33 | 10.6.210.0/28 | 10.6.210.1 – 10.6.210.14 | 10.6.210.15 |
| 34 | 10.6.210.16/28 | 10.6.210.17 – 10.6.210.30 | 10.6.210.31 |
| 35 | 10.6.210.32/28 | 10.6.210.33 – 10.6.210.46 | 10.6.210.47 |
| 36 | 10.6.210.48/28 | 10.6.210.49 – 10.6.210.62 | 10.6.210.63 |
| 37 | 10.6.210.64/28 | 10.6.210.65 – 10.6.210.78 | 10.6.210.79 |
| 38 | 10.6.210.80/28 | 10.6.210.81 – 10.6.210.94 | 10.6.210.95 |
| 39 | 10.6.210.96/28 | 10.6.210.97 – 10.6.210.110 | 10.6.210.111 |
| 40 | 10.6.210.112/28 | 10.6.210.113 – 10.6.210.126 | 10.6.210.127 |
| 41 | 10.6.210.128/28 | 10.6.210.129 – 10.6.210.142 | 10.6.210.143 |
| 42 | 10.6.210.144/28 | 10.6.210.145 – 10.6.210.158 | 10.6.210.159 |
| 43 | 10.6.210.160/28 | 10.6.210.161 – 10.6.210.174 | 10.6.210.175 |
| 44 | 10.6.210.176/28 | 10.6.210.177 – 10.6.210.190 | 10.6.210.191 |
| 45 | 10.6.210.192/28 | 10.6.210.193 – 10.6.210.206 | 10.6.210.207 |
| 46 | 10.6.210.208/28 | 10.6.210.209 – 10.6.210.222 | 10.6.210.223 |
| 47 | 10.6.210.224/28 | 10.6.210.225 – 10.6.210.238 | 10.6.210.239 |
| 48 | 10.6.210.240/28 | 10.6.210.241 – 10.6.210.254 | 10.6.210.255 |
| 49 | 10.6.211.0/28 | 10.6.211.1 – 10.6.211.14 | 10.6.211.15 |
| 50 | 10.6.211.16/28 | 10.6.211.17 – 10.6.211.30 | 10.6.211.31 |
| 51 | 10.6.211.32/28 | 10.6.211.33 – 10.6.211.46 | 10.6.211.47 |
| 52 | 10.6.211.48/28 | 10.6.211.49 – 10.6.211.62 | 10.6.211.63 |
| 53 | 10.6.211.64/28 | 10.6.211.65 – 10.6.211.78 | 10.6.211.79 |
| 54 | 10.6.211.80/28 | 10.6.211.81 – 10.6.211.94 | 10.6.211.95 |
| 55 | 10.6.211.96/28 | 10.6.211.97 – 10.6.211.110 | 10.6.211.111 |
| 56 | 10.6.211.112/28 | 10.6.211.113 – 10.6.211.126 | 10.6.211.127 |
| 57 | 10.6.211.128/28 | 10.6.211.129 – 10.6.211.142 | 10.6.211.143 |
| 58 | 10.6.211.144/28 | 10.6.211.145 – 10.6.211.158 | 10.6.211.159 |
| 59 | 10.6.211.160/28 | 10.6.211.161 – 10.6.211.174 | 10.6.211.175 |
| 60 | 10.6.211.176/28 | 10.6.211.177 – 10.6.211.190 | 10.6.211.191 |
| 61 | 10.6.211.192/28 | 10.6.211.193 – 10.6.211.206 | 10.6.211.207 |
| 62 | 10.6.211.208/28 | 10.6.211.209 – 10.6.211.222 | 10.6.211.223 |
| 63 | 10.6.211.224/28 | 10.6.211.225 – 10.6.211.238 | 10.6.211.239 |
| 64 | 10.6.211.240/28 | 10.6.211.241 – 10.6.211.254 | 10.6.211.255 |
| 65 | 10.6.212.0/28 | 10.6.212.1 – 10.6.212.14 | 10.6.212.15 |
| 66 | 10.6.212.16/28 | 10.6.212.17 – 10.6.212.30 | 10.6.212.31 |
| 67 | 10.6.212.32/28 | 10.6.212.33 – 10.6.212.46 | 10.6.212.47 |
| 68 | 10.6.212.48/28 | 10.6.212.49 – 10.6.212.62 | 10.6.212.63 |
| 69 | 10.6.212.64/28 | 10.6.212.65 – 10.6.212.78 | 10.6.212.79 |
| 70 | 10.6.212.80/28 | 10.6.212.81 – 10.6.212.94 | 10.6.212.95 |
| 71 | 10.6.212.96/28 | 10.6.212.97 – 10.6.212.110 | 10.6.212.111 |
| 72 | 10.6.212.112/28 | 10.6.212.113 – 10.6.212.126 | 10.6.212.127 |
| 73 | 10.6.212.128/28 | 10.6.212.129 – 10.6.212.142 | 10.6.212.143 |
| 74 | 10.6.212.144/28 | 10.6.212.145 – 10.6.212.158 | 10.6.212.159 |
| 75 | 10.6.212.160/28 | 10.6.212.161 – 10.6.212.174 | 10.6.212.175 |
| 76 | 10.6.212.176/28 | 10.6.212.177 – 10.6.212.190 | 10.6.212.191 |
| 77 | 10.6.212.192/28 | 10.6.212.193 – 10.6.212.206 | 10.6.212.207 |
| 78 | 10.6.212.208/28 | 10.6.212.209 – 10.6.212.222 | 10.6.212.223 |
| 79 | 10.6.212.224/28 | 10.6.212.225 – 10.6.212.238 | 10.6.212.239 |
| 80 | 10.6.212.240/28 | 10.6.212.241 – 10.6.212.254 | 10.6.212.255 |
| 81 | 10.6.213.0/28 | 10.6.213.1 – 10.6.213.14 | 10.6.213.15 |
| 82 | 10.6.213.16/28 | 10.6.213.17 – 10.6.213.30 | 10.6.213.31 |
| 83 | 10.6.213.32/28 | 10.6.213.33 – 10.6.213.46 | 10.6.213.47 |
| 84 | 10.6.213.48/28 | 10.6.213.49 – 10.6.213.62 | 10.6.213.63 |
| 85 | 10.6.213.64/28 | 10.6.213.65 – 10.6.213.78 | 10.6.213.79 |
| 86 | 10.6.213.80/28 | 10.6.213.81 – 10.6.213.94 | 10.6.213.95 |
| 87 | 10.6.213.96/28 | 10.6.213.97 – 10.6.213.110 | 10.6.213.111 |
| 88 | 10.6.213.112/28 | 10.6.213.113 – 10.6.213.126 | 10.6.213.127 |
| 89 | 10.6.213.128/28 | 10.6.213.129 – 10.6.213.142 | 10.6.213.143 |
| 90 | 10.6.213.144/28 | 10.6.213.145 – 10.6.213.158 | 10.6.213.159 |
| 91 | 10.6.213.160/28 | 10.6.213.161 – 10.6.213.174 | 10.6.213.175 |
| 92 | 10.6.213.176/28 | 10.6.213.177 – 10.6.213.190 | 10.6.213.191 |
| 93 | 10.6.213.192/28 | 10.6.213.193 – 10.6.213.206 | 10.6.213.207 |
| 94 | 10.6.213.208/28 | 10.6.213.209 – 10.6.213.222 | 10.6.213.223 |
| 95 | 10.6.213.224/28 | 10.6.213.225 – 10.6.213.238 | 10.6.213.239 |
| 96 | 10.6.213.240/28 | 10.6.213.241 – 10.6.213.254 | 10.6.213.255 |
| 97 | 10.6.214.0/28 | 10.6.214.1 – 10.6.214.14 | 10.6.214.15 |
| 98 | 10.6.214.16/28 | 10.6.214.17 – 10.6.214.30 | 10.6.214.31 |
| 99 | 10.6.214.32/28 | 10.6.214.33 – 10.6.214.46 | 10.6.214.47 |
| 100 | 10.6.214.48/28 | 10.6.214.49 – 10.6.214.62 | 10.6.214.63 |
| 101 | 10.6.214.64/28 | 10.6.214.65 – 10.6.214.78 | 10.6.214.79 |
| 102 | 10.6.214.80/28 | 10.6.214.81 – 10.6.214.94 | 10.6.214.95 |
| 103 | 10.6.214.96/28 | 10.6.214.97 – 10.6.214.110 | 10.6.214.111 |
| 104 | 10.6.214.112/28 | 10.6.214.113 – 10.6.214.126 | 10.6.214.127 |
| 105 | 10.6.214.128/28 | 10.6.214.129 – 10.6.214.142 | 10.6.214.143 |
| 106 | 10.6.214.144/28 | 10.6.214.145 – 10.6.214.158 | 10.6.214.159 |
| 107 | 10.6.214.160/28 | 10.6.214.161 – 10.6.214.174 | 10.6.214.175 |
| 108 | 10.6.214.176/28 | 10.6.214.177 – 10.6.214.190 | 10.6.214.191 |
| 109 | 10.6.214.192/28 | 10.6.214.193 – 10.6.214.206 | 10.6.214.207 |
| 110 | 10.6.214.208/28 | 10.6.214.209 – 10.6.214.222 | 10.6.214.223 |
| 111 | 10.6.214.224/28 | 10.6.214.225 – 10.6.214.238 | 10.6.214.239 |
| 112 | 10.6.214.240/28 | 10.6.214.241 – 10.6.214.254 | 10.6.214.255 |
| 113 | 10.6.215.0/28 | 10.6.215.1 – 10.6.215.14 | 10.6.215.15 |
| 114 | 10.6.215.16/28 | 10.6.215.17 – 10.6.215.30 | 10.6.215.31 |
| 115 | 10.6.215.32/28 | 10.6.215.33 – 10.6.215.46 | 10.6.215.47 |
| 116 | 10.6.215.48/28 | 10.6.215.49 – 10.6.215.62 | 10.6.215.63 |
| 117 | 10.6.215.64/28 | 10.6.215.65 – 10.6.215.78 | 10.6.215.79 |
| 118 | 10.6.215.80/28 | 10.6.215.81 – 10.6.215.94 | 10.6.215.95 |
| 119 | 10.6.215.96/28 | 10.6.215.97 – 10.6.215.110 | 10.6.215.111 |
| 120 | 10.6.215.112/28 | 10.6.215.113 – 10.6.215.126 | 10.6.215.127 |
| 121 | 10.6.215.128/28 | 10.6.215.129 – 10.6.215.142 | 10.6.215.143 |
| 122 | 10.6.215.144/28 | 10.6.215.145 – 10.6.215.158 | 10.6.215.159 |
| 123 | 10.6.215.160/28 | 10.6.215.161 – 10.6.215.174 | 10.6.215.175 |
| 124 | 10.6.215.176/28 | 10.6.215.177 – 10.6.215.190 | 10.6.215.191 |
| 125 | 10.6.215.192/28 | 10.6.215.193 – 10.6.215.206 | 10.6.215.207 |
| 126 | 10.6.215.208/28 | 10.6.215.209 – 10.6.215.222 | 10.6.215.223 |
| 127 | 10.6.215.224/28 | 10.6.215.225 – 10.6.215.238 | 10.6.215.239 |
| 128 | 10.6.215.240/28 | 10.6.215.241 – 10.6.215.254 | 10.6.215.255 |
| 129 | 10.6.216.0/28 | 10.6.216.1 – 10.6.216.14 | 10.6.216.15 |
| 130 | 10.6.216.16/28 | 10.6.216.17 – 10.6.216.30 | 10.6.216.31 |
| 131 | 10.6.216.32/28 | 10.6.216.33 – 10.6.216.46 | 10.6.216.47 |
| 132 | 10.6.216.48/28 | 10.6.216.49 – 10.6.216.62 | 10.6.216.63 |
| 133 | 10.6.216.64/28 | 10.6.216.65 – 10.6.216.78 | 10.6.216.79 |
| 134 | 10.6.216.80/28 | 10.6.216.81 – 10.6.216.94 | 10.6.216.95 |
| 135 | 10.6.216.96/28 | 10.6.216.97 – 10.6.216.110 | 10.6.216.111 |
| 136 | 10.6.216.112/28 | 10.6.216.113 – 10.6.216.126 | 10.6.216.127 |
| 137 | 10.6.216.128/28 | 10.6.216.129 – 10.6.216.142 | 10.6.216.143 |
| 138 | 10.6.216.144/28 | 10.6.216.145 – 10.6.216.158 | 10.6.216.159 |
| 139 | 10.6.216.160/28 | 10.6.216.161 – 10.6.216.174 | 10.6.216.175 |
| 140 | 10.6.216.176/28 | 10.6.216.177 – 10.6.216.190 | 10.6.216.191 |
| 141 | 10.6.216.192/28 | 10.6.216.193 – 10.6.216.206 | 10.6.216.207 |
| 142 | 10.6.216.208/28 | 10.6.216.209 – 10.6.216.222 | 10.6.216.223 |
| 143 | 10.6.216.224/28 | 10.6.216.225 – 10.6.216.238 | 10.6.216.239 |
| 144 | 10.6.216.240/28 | 10.6.216.241 – 10.6.216.254 | 10.6.216.255 |
| 145 | 10.6.217.0/28 | 10.6.217.1 – 10.6.217.14 | 10.6.217.15 |
| 146 | 10.6.217.16/28 | 10.6.217.17 – 10.6.217.30 | 10.6.217.31 |
| 147 | 10.6.217.32/28 | 10.6.217.33 – 10.6.217.46 | 10.6.217.47 |
| 148 | 10.6.217.48/28 | 10.6.217.49 – 10.6.217.62 | 10.6.217.63 |
| 149 | 10.6.217.64/28 | 10.6.217.65 – 10.6.217.78 | 10.6.217.79 |
| 150 | 10.6.217.80/28 | 10.6.217.81 – 10.6.217.94 | 10.6.217.95 |
| 151 | 10.6.217.96/28 | 10.6.217.97 – 10.6.217.110 | 10.6.217.111 |
| 152 | 10.6.217.112/28 | 10.6.217.113 – 10.6.217.126 | 10.6.217.127 |
| 153 | 10.6.217.128/28 | 10.6.217.129 – 10.6.217.142 | 10.6.217.143 |
| 154 | 10.6.217.144/28 | 10.6.217.145 – 10.6.217.158 | 10.6.217.159 |
| 155 | 10.6.217.160/28 | 10.6.217.161 – 10.6.217.174 | 10.6.217.175 |
| 156 | 10.6.217.176/28 | 10.6.217.177 – 10.6.217.190 | 10.6.217.191 |
| 157 | 10.6.217.192/28 | 10.6.217.193 – 10.6.217.206 | 10.6.217.207 |
| 158 | 10.6.217.208/28 | 10.6.217.209 – 10.6.217.222 | 10.6.217.223 |
| 159 | 10.6.217.224/28 | 10.6.217.225 – 10.6.217.238 | 10.6.217.239 |
| 160 | 10.6.217.240/28 | 10.6.217.241 – 10.6.217.254 | 10.6.217.255 |
| 161 | 10.6.218.0/28 | 10.6.218.1 – 10.6.218.14 | 10.6.218.15 |
| 162 | 10.6.218.16/28 | 10.6.218.17 – 10.6.218.30 | 10.6.218.31 |
| 163 | 10.6.218.32/28 | 10.6.218.33 – 10.6.218.46 | 10.6.218.47 |
| 164 | 10.6.218.48/28 | 10.6.218.49 – 10.6.218.62 | 10.6.218.63 |
| 165 | 10.6.218.64/28 | 10.6.218.65 – 10.6.218.78 | 10.6.218.79 |
| 166 | 10.6.218.80/28 | 10.6.218.81 – 10.6.218.94 | 10.6.218.95 |
| 167 | 10.6.218.96/28 | 10.6.218.97 – 10.6.218.110 | 10.6.218.111 |
| 168 | 10.6.218.112/28 | 10.6.218.113 – 10.6.218.126 | 10.6.218.127 |
| 169 | 10.6.218.128/28 | 10.6.218.129 – 10.6.218.142 | 10.6.218.143 |
| 170 | 10.6.218.144/28 | 10.6.218.145 – 10.6.218.158 | 10.6.218.159 |
| 171 | 10.6.218.160/28 | 10.6.218.161 – 10.6.218.174 | 10.6.218.175 |
| 172 | 10.6.218.176/28 | 10.6.218.177 – 10.6.218.190 | 10.6.218.191 |
| 173 | 10.6.218.192/28 | 10.6.218.193 – 10.6.218.206 | 10.6.218.207 |
| 174 | 10.6.218.208/28 | 10.6.218.209 – 10.6.218.222 | 10.6.218.223 |
| 175 | 10.6.218.224/28 | 10.6.218.225 – 10.6.218.238 | 10.6.218.239 |
| 176 | 10.6.218.240/28 | 10.6.218.241 – 10.6.218.254 | 10.6.218.255 |
| 177 | 10.6.219.0/28 | 10.6.219.1 – 10.6.219.14 | 10.6.219.15 |
| 178 | 10.6.219.16/28 | 10.6.219.17 – 10.6.219.30 | 10.6.219.31 |
| 179 | 10.6.219.32/28 | 10.6.219.33 – 10.6.219.46 | 10.6.219.47 |
| 180 | 10.6.219.48/28 | 10.6.219.49 – 10.6.219.62 | 10.6.219.63 |
| 181 | 10.6.219.64/28 | 10.6.219.65 – 10.6.219.78 | 10.6.219.79 |
| 182 | 10.6.219.80/28 | 10.6.219.81 – 10.6.219.94 | 10.6.219.95 |
| 183 | 10.6.219.96/28 | 10.6.219.97 – 10.6.219.110 | 10.6.219.111 |
| 184 | 10.6.219.112/28 | 10.6.219.113 – 10.6.219.126 | 10.6.219.127 |
| 185 | 10.6.219.128/28 | 10.6.219.129 – 10.6.219.142 | 10.6.219.143 |
| 186 | 10.6.219.144/28 | 10.6.219.145 – 10.6.219.158 | 10.6.219.159 |
| 187 | 10.6.219.160/28 | 10.6.219.161 – 10.6.219.174 | 10.6.219.175 |
| 188 | 10.6.219.176/28 | 10.6.219.177 – 10.6.219.190 | 10.6.219.191 |
| 189 | 10.6.219.192/28 | 10.6.219.193 – 10.6.219.206 | 10.6.219.207 |
| 190 | 10.6.219.208/28 | 10.6.219.209 – 10.6.219.222 | 10.6.219.223 |
| 191 | 10.6.219.224/28 | 10.6.219.225 – 10.6.219.238 | 10.6.219.239 |
| 192 | 10.6.219.240/28 | 10.6.219.241 – 10.6.219.254 | 10.6.219.255 |
| 193 | 10.6.220.0/28 | 10.6.220.1 – 10.6.220.14 | 10.6.220.15 |
| 194 | 10.6.220.16/28 | 10.6.220.17 – 10.6.220.30 | 10.6.220.31 |
| 195 | 10.6.220.32/28 | 10.6.220.33 – 10.6.220.46 | 10.6.220.47 |
| 196 | 10.6.220.48/28 | 10.6.220.49 – 10.6.220.62 | 10.6.220.63 |
| 197 | 10.6.220.64/28 | 10.6.220.65 – 10.6.220.78 | 10.6.220.79 |
| 198 | 10.6.220.80/28 | 10.6.220.81 – 10.6.220.94 | 10.6.220.95 |
| 199 | 10.6.220.96/28 | 10.6.220.97 – 10.6.220.110 | 10.6.220.111 |
| 200 | 10.6.220.112/28 | 10.6.220.113 – 10.6.220.126 | 10.6.220.127 |
| 201 | 10.6.220.128/28 | 10.6.220.129 – 10.6.220.142 | 10.6.220.143 |
| 202 | 10.6.220.144/28 | 10.6.220.145 – 10.6.220.158 | 10.6.220.159 |
| 203 | 10.6.220.160/28 | 10.6.220.161 – 10.6.220.174 | 10.6.220.175 |
| 204 | 10.6.220.176/28 | 10.6.220.177 – 10.6.220.190 | 10.6.220.191 |
| 205 | 10.6.220.192/28 | 10.6.220.193 – 10.6.220.206 | 10.6.220.207 |
| 206 | 10.6.220.208/28 | 10.6.220.209 – 10.6.220.222 | 10.6.220.223 |
| 207 | 10.6.220.224/28 | 10.6.220.225 – 10.6.220.238 | 10.6.220.239 |
| 208 | 10.6.220.240/28 | 10.6.220.241 – 10.6.220.254 | 10.6.220.255 |
| 209 | 10.6.221.0/28 | 10.6.221.1 – 10.6.221.14 | 10.6.221.15 |
| 210 | 10.6.221.16/28 | 10.6.221.17 – 10.6.221.30 | 10.6.221.31 |
| 211 | 10.6.221.32/28 | 10.6.221.33 – 10.6.221.46 | 10.6.221.47 |
| 212 | 10.6.221.48/28 | 10.6.221.49 – 10.6.221.62 | 10.6.221.63 |
| 213 | 10.6.221.64/28 | 10.6.221.65 – 10.6.221.78 | 10.6.221.79 |
| 214 | 10.6.221.80/28 | 10.6.221.81 – 10.6.221.94 | 10.6.221.95 |
| 215 | 10.6.221.96/28 | 10.6.221.97 – 10.6.221.110 | 10.6.221.111 |
| 216 | 10.6.221.112/28 | 10.6.221.113 – 10.6.221.126 | 10.6.221.127 |
| 217 | 10.6.221.128/28 | 10.6.221.129 – 10.6.221.142 | 10.6.221.143 |
| 218 | 10.6.221.144/28 | 10.6.221.145 – 10.6.221.158 | 10.6.221.159 |
| 219 | 10.6.221.160/28 | 10.6.221.161 – 10.6.221.174 | 10.6.221.175 |
| 220 | 10.6.221.176/28 | 10.6.221.177 – 10.6.221.190 | 10.6.221.191 |
| 221 | 10.6.221.192/28 | 10.6.221.193 – 10.6.221.206 | 10.6.221.207 |
| 222 | 10.6.221.208/28 | 10.6.221.209 – 10.6.221.222 | 10.6.221.223 |
| 223 | 10.6.221.224/28 | 10.6.221.225 – 10.6.221.238 | 10.6.221.239 |
| 224 | 10.6.221.240/28 | 10.6.221.241 – 10.6.221.254 | 10.6.221.255 |
| 225 | 10.6.222.0/28 | 10.6.222.1 – 10.6.222.14 | 10.6.222.15 |
| 226 | 10.6.222.16/28 | 10.6.222.17 – 10.6.222.30 | 10.6.222.31 |
| 227 | 10.6.222.32/28 | 10.6.222.33 – 10.6.222.46 | 10.6.222.47 |
| 228 | 10.6.222.48/28 | 10.6.222.49 – 10.6.222.62 | 10.6.222.63 |
| 229 | 10.6.222.64/28 | 10.6.222.65 – 10.6.222.78 | 10.6.222.79 |
| 230 | 10.6.222.80/28 | 10.6.222.81 – 10.6.222.94 | 10.6.222.95 |
| 231 | 10.6.222.96/28 | 10.6.222.97 – 10.6.222.110 | 10.6.222.111 |
| 232 | 10.6.222.112/28 | 10.6.222.113 – 10.6.222.126 | 10.6.222.127 |
| 233 | 10.6.222.128/28 | 10.6.222.129 – 10.6.222.142 | 10.6.222.143 |
| 234 | 10.6.222.144/28 | 10.6.222.145 – 10.6.222.158 | 10.6.222.159 |
| 235 | 10.6.222.160/28 | 10.6.222.161 – 10.6.222.174 | 10.6.222.175 |
| 236 | 10.6.222.176/28 | 10.6.222.177 – 10.6.222.190 | 10.6.222.191 |
| 237 | 10.6.222.192/28 | 10.6.222.193 – 10.6.222.206 | 10.6.222.207 |
| 238 | 10.6.222.208/28 | 10.6.222.209 – 10.6.222.222 | 10.6.222.223 |
| 239 | 10.6.222.224/28 | 10.6.222.225 – 10.6.222.238 | 10.6.222.239 |
| 240 | 10.6.222.240/28 | 10.6.222.241 – 10.6.222.254 | 10.6.222.255 |
| 241 | 10.6.223.0/28 | 10.6.223.1 – 10.6.223.14 | 10.6.223.15 |
| 242 | 10.6.223.16/28 | 10.6.223.17 – 10.6.223.30 | 10.6.223.31 |
| 243 | 10.6.223.32/28 | 10.6.223.33 – 10.6.223.46 | 10.6.223.47 |
| 244 | 10.6.223.48/28 | 10.6.223.49 – 10.6.223.62 | 10.6.223.63 |
| 245 | 10.6.223.64/28 | 10.6.223.65 – 10.6.223.78 | 10.6.223.79 |
| 246 | 10.6.223.80/28 | 10.6.223.81 – 10.6.223.94 | 10.6.223.95 |
| 247 | 10.6.223.96/28 | 10.6.223.97 – 10.6.223.110 | 10.6.223.111 |
| 248 | 10.6.223.112/28 | 10.6.223.113 – 10.6.223.126 | 10.6.223.127 |
| 249 | 10.6.223.128/28 | 10.6.223.129 – 10.6.223.142 | 10.6.223.143 |
| 250 | 10.6.223.144/28 | 10.6.223.145 – 10.6.223.158 | 10.6.223.159 |
| 251 | 10.6.223.160/28 | 10.6.223.161 – 10.6.223.174 | 10.6.223.175 |
| 252 | 10.6.223.176/28 | 10.6.223.177 – 10.6.223.190 | 10.6.223.191 |
| 253 | 10.6.223.192/28 | 10.6.223.193 – 10.6.223.206 | 10.6.223.207 |
| 254 | 10.6.223.208/28 | 10.6.223.209 – 10.6.223.222 | 10.6.223.223 |
| 255 | 10.6.223.224/28 | 10.6.223.225 – 10.6.223.238 | 10.6.223.239 |
| 256 | 10.6.223.240/28 | 10.6.223.241 – 10.6.223.254 | 10.6.223.255 |
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 /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.