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)10.232.16.0/20
network10.232.16.0/20
broadcast10.232.31.255
first host10.232.16.1
last host10.232.31.254
subnet mask255.255.240.0
wildcard0.0.15.255
addresses4,096
usable hosts4,094
classA
ipcalc 10.232.16.0/20
address00001010.11101000.00010000.00000000
subnet mask11111111.11111111.11110000.00000000
network00001010.11101000.00010000.00000000
broadcast00001010.11101000.00011111.11111111
green = network part, grey = host part
hex0x0ae81000
decimal182980608
reverse dns0.16.232.10.in-addr.arpa
ipv4-mapped::ffff:ae8:1000
/20 split into /28 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.232.16.0/28 | 10.232.16.1 – 10.232.16.14 | 10.232.16.15 |
| 2 | 10.232.16.16/28 | 10.232.16.17 – 10.232.16.30 | 10.232.16.31 |
| 3 | 10.232.16.32/28 | 10.232.16.33 – 10.232.16.46 | 10.232.16.47 |
| 4 | 10.232.16.48/28 | 10.232.16.49 – 10.232.16.62 | 10.232.16.63 |
| 5 | 10.232.16.64/28 | 10.232.16.65 – 10.232.16.78 | 10.232.16.79 |
| 6 | 10.232.16.80/28 | 10.232.16.81 – 10.232.16.94 | 10.232.16.95 |
| 7 | 10.232.16.96/28 | 10.232.16.97 – 10.232.16.110 | 10.232.16.111 |
| 8 | 10.232.16.112/28 | 10.232.16.113 – 10.232.16.126 | 10.232.16.127 |
| 9 | 10.232.16.128/28 | 10.232.16.129 – 10.232.16.142 | 10.232.16.143 |
| 10 | 10.232.16.144/28 | 10.232.16.145 – 10.232.16.158 | 10.232.16.159 |
| 11 | 10.232.16.160/28 | 10.232.16.161 – 10.232.16.174 | 10.232.16.175 |
| 12 | 10.232.16.176/28 | 10.232.16.177 – 10.232.16.190 | 10.232.16.191 |
| 13 | 10.232.16.192/28 | 10.232.16.193 – 10.232.16.206 | 10.232.16.207 |
| 14 | 10.232.16.208/28 | 10.232.16.209 – 10.232.16.222 | 10.232.16.223 |
| 15 | 10.232.16.224/28 | 10.232.16.225 – 10.232.16.238 | 10.232.16.239 |
| 16 | 10.232.16.240/28 | 10.232.16.241 – 10.232.16.254 | 10.232.16.255 |
| 17 | 10.232.17.0/28 | 10.232.17.1 – 10.232.17.14 | 10.232.17.15 |
| 18 | 10.232.17.16/28 | 10.232.17.17 – 10.232.17.30 | 10.232.17.31 |
| 19 | 10.232.17.32/28 | 10.232.17.33 – 10.232.17.46 | 10.232.17.47 |
| 20 | 10.232.17.48/28 | 10.232.17.49 – 10.232.17.62 | 10.232.17.63 |
| 21 | 10.232.17.64/28 | 10.232.17.65 – 10.232.17.78 | 10.232.17.79 |
| 22 | 10.232.17.80/28 | 10.232.17.81 – 10.232.17.94 | 10.232.17.95 |
| 23 | 10.232.17.96/28 | 10.232.17.97 – 10.232.17.110 | 10.232.17.111 |
| 24 | 10.232.17.112/28 | 10.232.17.113 – 10.232.17.126 | 10.232.17.127 |
| 25 | 10.232.17.128/28 | 10.232.17.129 – 10.232.17.142 | 10.232.17.143 |
| 26 | 10.232.17.144/28 | 10.232.17.145 – 10.232.17.158 | 10.232.17.159 |
| 27 | 10.232.17.160/28 | 10.232.17.161 – 10.232.17.174 | 10.232.17.175 |
| 28 | 10.232.17.176/28 | 10.232.17.177 – 10.232.17.190 | 10.232.17.191 |
| 29 | 10.232.17.192/28 | 10.232.17.193 – 10.232.17.206 | 10.232.17.207 |
| 30 | 10.232.17.208/28 | 10.232.17.209 – 10.232.17.222 | 10.232.17.223 |
| 31 | 10.232.17.224/28 | 10.232.17.225 – 10.232.17.238 | 10.232.17.239 |
| 32 | 10.232.17.240/28 | 10.232.17.241 – 10.232.17.254 | 10.232.17.255 |
| 33 | 10.232.18.0/28 | 10.232.18.1 – 10.232.18.14 | 10.232.18.15 |
| 34 | 10.232.18.16/28 | 10.232.18.17 – 10.232.18.30 | 10.232.18.31 |
| 35 | 10.232.18.32/28 | 10.232.18.33 – 10.232.18.46 | 10.232.18.47 |
| 36 | 10.232.18.48/28 | 10.232.18.49 – 10.232.18.62 | 10.232.18.63 |
| 37 | 10.232.18.64/28 | 10.232.18.65 – 10.232.18.78 | 10.232.18.79 |
| 38 | 10.232.18.80/28 | 10.232.18.81 – 10.232.18.94 | 10.232.18.95 |
| 39 | 10.232.18.96/28 | 10.232.18.97 – 10.232.18.110 | 10.232.18.111 |
| 40 | 10.232.18.112/28 | 10.232.18.113 – 10.232.18.126 | 10.232.18.127 |
| 41 | 10.232.18.128/28 | 10.232.18.129 – 10.232.18.142 | 10.232.18.143 |
| 42 | 10.232.18.144/28 | 10.232.18.145 – 10.232.18.158 | 10.232.18.159 |
| 43 | 10.232.18.160/28 | 10.232.18.161 – 10.232.18.174 | 10.232.18.175 |
| 44 | 10.232.18.176/28 | 10.232.18.177 – 10.232.18.190 | 10.232.18.191 |
| 45 | 10.232.18.192/28 | 10.232.18.193 – 10.232.18.206 | 10.232.18.207 |
| 46 | 10.232.18.208/28 | 10.232.18.209 – 10.232.18.222 | 10.232.18.223 |
| 47 | 10.232.18.224/28 | 10.232.18.225 – 10.232.18.238 | 10.232.18.239 |
| 48 | 10.232.18.240/28 | 10.232.18.241 – 10.232.18.254 | 10.232.18.255 |
| 49 | 10.232.19.0/28 | 10.232.19.1 – 10.232.19.14 | 10.232.19.15 |
| 50 | 10.232.19.16/28 | 10.232.19.17 – 10.232.19.30 | 10.232.19.31 |
| 51 | 10.232.19.32/28 | 10.232.19.33 – 10.232.19.46 | 10.232.19.47 |
| 52 | 10.232.19.48/28 | 10.232.19.49 – 10.232.19.62 | 10.232.19.63 |
| 53 | 10.232.19.64/28 | 10.232.19.65 – 10.232.19.78 | 10.232.19.79 |
| 54 | 10.232.19.80/28 | 10.232.19.81 – 10.232.19.94 | 10.232.19.95 |
| 55 | 10.232.19.96/28 | 10.232.19.97 – 10.232.19.110 | 10.232.19.111 |
| 56 | 10.232.19.112/28 | 10.232.19.113 – 10.232.19.126 | 10.232.19.127 |
| 57 | 10.232.19.128/28 | 10.232.19.129 – 10.232.19.142 | 10.232.19.143 |
| 58 | 10.232.19.144/28 | 10.232.19.145 – 10.232.19.158 | 10.232.19.159 |
| 59 | 10.232.19.160/28 | 10.232.19.161 – 10.232.19.174 | 10.232.19.175 |
| 60 | 10.232.19.176/28 | 10.232.19.177 – 10.232.19.190 | 10.232.19.191 |
| 61 | 10.232.19.192/28 | 10.232.19.193 – 10.232.19.206 | 10.232.19.207 |
| 62 | 10.232.19.208/28 | 10.232.19.209 – 10.232.19.222 | 10.232.19.223 |
| 63 | 10.232.19.224/28 | 10.232.19.225 – 10.232.19.238 | 10.232.19.239 |
| 64 | 10.232.19.240/28 | 10.232.19.241 – 10.232.19.254 | 10.232.19.255 |
| 65 | 10.232.20.0/28 | 10.232.20.1 – 10.232.20.14 | 10.232.20.15 |
| 66 | 10.232.20.16/28 | 10.232.20.17 – 10.232.20.30 | 10.232.20.31 |
| 67 | 10.232.20.32/28 | 10.232.20.33 – 10.232.20.46 | 10.232.20.47 |
| 68 | 10.232.20.48/28 | 10.232.20.49 – 10.232.20.62 | 10.232.20.63 |
| 69 | 10.232.20.64/28 | 10.232.20.65 – 10.232.20.78 | 10.232.20.79 |
| 70 | 10.232.20.80/28 | 10.232.20.81 – 10.232.20.94 | 10.232.20.95 |
| 71 | 10.232.20.96/28 | 10.232.20.97 – 10.232.20.110 | 10.232.20.111 |
| 72 | 10.232.20.112/28 | 10.232.20.113 – 10.232.20.126 | 10.232.20.127 |
| 73 | 10.232.20.128/28 | 10.232.20.129 – 10.232.20.142 | 10.232.20.143 |
| 74 | 10.232.20.144/28 | 10.232.20.145 – 10.232.20.158 | 10.232.20.159 |
| 75 | 10.232.20.160/28 | 10.232.20.161 – 10.232.20.174 | 10.232.20.175 |
| 76 | 10.232.20.176/28 | 10.232.20.177 – 10.232.20.190 | 10.232.20.191 |
| 77 | 10.232.20.192/28 | 10.232.20.193 – 10.232.20.206 | 10.232.20.207 |
| 78 | 10.232.20.208/28 | 10.232.20.209 – 10.232.20.222 | 10.232.20.223 |
| 79 | 10.232.20.224/28 | 10.232.20.225 – 10.232.20.238 | 10.232.20.239 |
| 80 | 10.232.20.240/28 | 10.232.20.241 – 10.232.20.254 | 10.232.20.255 |
| 81 | 10.232.21.0/28 | 10.232.21.1 – 10.232.21.14 | 10.232.21.15 |
| 82 | 10.232.21.16/28 | 10.232.21.17 – 10.232.21.30 | 10.232.21.31 |
| 83 | 10.232.21.32/28 | 10.232.21.33 – 10.232.21.46 | 10.232.21.47 |
| 84 | 10.232.21.48/28 | 10.232.21.49 – 10.232.21.62 | 10.232.21.63 |
| 85 | 10.232.21.64/28 | 10.232.21.65 – 10.232.21.78 | 10.232.21.79 |
| 86 | 10.232.21.80/28 | 10.232.21.81 – 10.232.21.94 | 10.232.21.95 |
| 87 | 10.232.21.96/28 | 10.232.21.97 – 10.232.21.110 | 10.232.21.111 |
| 88 | 10.232.21.112/28 | 10.232.21.113 – 10.232.21.126 | 10.232.21.127 |
| 89 | 10.232.21.128/28 | 10.232.21.129 – 10.232.21.142 | 10.232.21.143 |
| 90 | 10.232.21.144/28 | 10.232.21.145 – 10.232.21.158 | 10.232.21.159 |
| 91 | 10.232.21.160/28 | 10.232.21.161 – 10.232.21.174 | 10.232.21.175 |
| 92 | 10.232.21.176/28 | 10.232.21.177 – 10.232.21.190 | 10.232.21.191 |
| 93 | 10.232.21.192/28 | 10.232.21.193 – 10.232.21.206 | 10.232.21.207 |
| 94 | 10.232.21.208/28 | 10.232.21.209 – 10.232.21.222 | 10.232.21.223 |
| 95 | 10.232.21.224/28 | 10.232.21.225 – 10.232.21.238 | 10.232.21.239 |
| 96 | 10.232.21.240/28 | 10.232.21.241 – 10.232.21.254 | 10.232.21.255 |
| 97 | 10.232.22.0/28 | 10.232.22.1 – 10.232.22.14 | 10.232.22.15 |
| 98 | 10.232.22.16/28 | 10.232.22.17 – 10.232.22.30 | 10.232.22.31 |
| 99 | 10.232.22.32/28 | 10.232.22.33 – 10.232.22.46 | 10.232.22.47 |
| 100 | 10.232.22.48/28 | 10.232.22.49 – 10.232.22.62 | 10.232.22.63 |
| 101 | 10.232.22.64/28 | 10.232.22.65 – 10.232.22.78 | 10.232.22.79 |
| 102 | 10.232.22.80/28 | 10.232.22.81 – 10.232.22.94 | 10.232.22.95 |
| 103 | 10.232.22.96/28 | 10.232.22.97 – 10.232.22.110 | 10.232.22.111 |
| 104 | 10.232.22.112/28 | 10.232.22.113 – 10.232.22.126 | 10.232.22.127 |
| 105 | 10.232.22.128/28 | 10.232.22.129 – 10.232.22.142 | 10.232.22.143 |
| 106 | 10.232.22.144/28 | 10.232.22.145 – 10.232.22.158 | 10.232.22.159 |
| 107 | 10.232.22.160/28 | 10.232.22.161 – 10.232.22.174 | 10.232.22.175 |
| 108 | 10.232.22.176/28 | 10.232.22.177 – 10.232.22.190 | 10.232.22.191 |
| 109 | 10.232.22.192/28 | 10.232.22.193 – 10.232.22.206 | 10.232.22.207 |
| 110 | 10.232.22.208/28 | 10.232.22.209 – 10.232.22.222 | 10.232.22.223 |
| 111 | 10.232.22.224/28 | 10.232.22.225 – 10.232.22.238 | 10.232.22.239 |
| 112 | 10.232.22.240/28 | 10.232.22.241 – 10.232.22.254 | 10.232.22.255 |
| 113 | 10.232.23.0/28 | 10.232.23.1 – 10.232.23.14 | 10.232.23.15 |
| 114 | 10.232.23.16/28 | 10.232.23.17 – 10.232.23.30 | 10.232.23.31 |
| 115 | 10.232.23.32/28 | 10.232.23.33 – 10.232.23.46 | 10.232.23.47 |
| 116 | 10.232.23.48/28 | 10.232.23.49 – 10.232.23.62 | 10.232.23.63 |
| 117 | 10.232.23.64/28 | 10.232.23.65 – 10.232.23.78 | 10.232.23.79 |
| 118 | 10.232.23.80/28 | 10.232.23.81 – 10.232.23.94 | 10.232.23.95 |
| 119 | 10.232.23.96/28 | 10.232.23.97 – 10.232.23.110 | 10.232.23.111 |
| 120 | 10.232.23.112/28 | 10.232.23.113 – 10.232.23.126 | 10.232.23.127 |
| 121 | 10.232.23.128/28 | 10.232.23.129 – 10.232.23.142 | 10.232.23.143 |
| 122 | 10.232.23.144/28 | 10.232.23.145 – 10.232.23.158 | 10.232.23.159 |
| 123 | 10.232.23.160/28 | 10.232.23.161 – 10.232.23.174 | 10.232.23.175 |
| 124 | 10.232.23.176/28 | 10.232.23.177 – 10.232.23.190 | 10.232.23.191 |
| 125 | 10.232.23.192/28 | 10.232.23.193 – 10.232.23.206 | 10.232.23.207 |
| 126 | 10.232.23.208/28 | 10.232.23.209 – 10.232.23.222 | 10.232.23.223 |
| 127 | 10.232.23.224/28 | 10.232.23.225 – 10.232.23.238 | 10.232.23.239 |
| 128 | 10.232.23.240/28 | 10.232.23.241 – 10.232.23.254 | 10.232.23.255 |
| 129 | 10.232.24.0/28 | 10.232.24.1 – 10.232.24.14 | 10.232.24.15 |
| 130 | 10.232.24.16/28 | 10.232.24.17 – 10.232.24.30 | 10.232.24.31 |
| 131 | 10.232.24.32/28 | 10.232.24.33 – 10.232.24.46 | 10.232.24.47 |
| 132 | 10.232.24.48/28 | 10.232.24.49 – 10.232.24.62 | 10.232.24.63 |
| 133 | 10.232.24.64/28 | 10.232.24.65 – 10.232.24.78 | 10.232.24.79 |
| 134 | 10.232.24.80/28 | 10.232.24.81 – 10.232.24.94 | 10.232.24.95 |
| 135 | 10.232.24.96/28 | 10.232.24.97 – 10.232.24.110 | 10.232.24.111 |
| 136 | 10.232.24.112/28 | 10.232.24.113 – 10.232.24.126 | 10.232.24.127 |
| 137 | 10.232.24.128/28 | 10.232.24.129 – 10.232.24.142 | 10.232.24.143 |
| 138 | 10.232.24.144/28 | 10.232.24.145 – 10.232.24.158 | 10.232.24.159 |
| 139 | 10.232.24.160/28 | 10.232.24.161 – 10.232.24.174 | 10.232.24.175 |
| 140 | 10.232.24.176/28 | 10.232.24.177 – 10.232.24.190 | 10.232.24.191 |
| 141 | 10.232.24.192/28 | 10.232.24.193 – 10.232.24.206 | 10.232.24.207 |
| 142 | 10.232.24.208/28 | 10.232.24.209 – 10.232.24.222 | 10.232.24.223 |
| 143 | 10.232.24.224/28 | 10.232.24.225 – 10.232.24.238 | 10.232.24.239 |
| 144 | 10.232.24.240/28 | 10.232.24.241 – 10.232.24.254 | 10.232.24.255 |
| 145 | 10.232.25.0/28 | 10.232.25.1 – 10.232.25.14 | 10.232.25.15 |
| 146 | 10.232.25.16/28 | 10.232.25.17 – 10.232.25.30 | 10.232.25.31 |
| 147 | 10.232.25.32/28 | 10.232.25.33 – 10.232.25.46 | 10.232.25.47 |
| 148 | 10.232.25.48/28 | 10.232.25.49 – 10.232.25.62 | 10.232.25.63 |
| 149 | 10.232.25.64/28 | 10.232.25.65 – 10.232.25.78 | 10.232.25.79 |
| 150 | 10.232.25.80/28 | 10.232.25.81 – 10.232.25.94 | 10.232.25.95 |
| 151 | 10.232.25.96/28 | 10.232.25.97 – 10.232.25.110 | 10.232.25.111 |
| 152 | 10.232.25.112/28 | 10.232.25.113 – 10.232.25.126 | 10.232.25.127 |
| 153 | 10.232.25.128/28 | 10.232.25.129 – 10.232.25.142 | 10.232.25.143 |
| 154 | 10.232.25.144/28 | 10.232.25.145 – 10.232.25.158 | 10.232.25.159 |
| 155 | 10.232.25.160/28 | 10.232.25.161 – 10.232.25.174 | 10.232.25.175 |
| 156 | 10.232.25.176/28 | 10.232.25.177 – 10.232.25.190 | 10.232.25.191 |
| 157 | 10.232.25.192/28 | 10.232.25.193 – 10.232.25.206 | 10.232.25.207 |
| 158 | 10.232.25.208/28 | 10.232.25.209 – 10.232.25.222 | 10.232.25.223 |
| 159 | 10.232.25.224/28 | 10.232.25.225 – 10.232.25.238 | 10.232.25.239 |
| 160 | 10.232.25.240/28 | 10.232.25.241 – 10.232.25.254 | 10.232.25.255 |
| 161 | 10.232.26.0/28 | 10.232.26.1 – 10.232.26.14 | 10.232.26.15 |
| 162 | 10.232.26.16/28 | 10.232.26.17 – 10.232.26.30 | 10.232.26.31 |
| 163 | 10.232.26.32/28 | 10.232.26.33 – 10.232.26.46 | 10.232.26.47 |
| 164 | 10.232.26.48/28 | 10.232.26.49 – 10.232.26.62 | 10.232.26.63 |
| 165 | 10.232.26.64/28 | 10.232.26.65 – 10.232.26.78 | 10.232.26.79 |
| 166 | 10.232.26.80/28 | 10.232.26.81 – 10.232.26.94 | 10.232.26.95 |
| 167 | 10.232.26.96/28 | 10.232.26.97 – 10.232.26.110 | 10.232.26.111 |
| 168 | 10.232.26.112/28 | 10.232.26.113 – 10.232.26.126 | 10.232.26.127 |
| 169 | 10.232.26.128/28 | 10.232.26.129 – 10.232.26.142 | 10.232.26.143 |
| 170 | 10.232.26.144/28 | 10.232.26.145 – 10.232.26.158 | 10.232.26.159 |
| 171 | 10.232.26.160/28 | 10.232.26.161 – 10.232.26.174 | 10.232.26.175 |
| 172 | 10.232.26.176/28 | 10.232.26.177 – 10.232.26.190 | 10.232.26.191 |
| 173 | 10.232.26.192/28 | 10.232.26.193 – 10.232.26.206 | 10.232.26.207 |
| 174 | 10.232.26.208/28 | 10.232.26.209 – 10.232.26.222 | 10.232.26.223 |
| 175 | 10.232.26.224/28 | 10.232.26.225 – 10.232.26.238 | 10.232.26.239 |
| 176 | 10.232.26.240/28 | 10.232.26.241 – 10.232.26.254 | 10.232.26.255 |
| 177 | 10.232.27.0/28 | 10.232.27.1 – 10.232.27.14 | 10.232.27.15 |
| 178 | 10.232.27.16/28 | 10.232.27.17 – 10.232.27.30 | 10.232.27.31 |
| 179 | 10.232.27.32/28 | 10.232.27.33 – 10.232.27.46 | 10.232.27.47 |
| 180 | 10.232.27.48/28 | 10.232.27.49 – 10.232.27.62 | 10.232.27.63 |
| 181 | 10.232.27.64/28 | 10.232.27.65 – 10.232.27.78 | 10.232.27.79 |
| 182 | 10.232.27.80/28 | 10.232.27.81 – 10.232.27.94 | 10.232.27.95 |
| 183 | 10.232.27.96/28 | 10.232.27.97 – 10.232.27.110 | 10.232.27.111 |
| 184 | 10.232.27.112/28 | 10.232.27.113 – 10.232.27.126 | 10.232.27.127 |
| 185 | 10.232.27.128/28 | 10.232.27.129 – 10.232.27.142 | 10.232.27.143 |
| 186 | 10.232.27.144/28 | 10.232.27.145 – 10.232.27.158 | 10.232.27.159 |
| 187 | 10.232.27.160/28 | 10.232.27.161 – 10.232.27.174 | 10.232.27.175 |
| 188 | 10.232.27.176/28 | 10.232.27.177 – 10.232.27.190 | 10.232.27.191 |
| 189 | 10.232.27.192/28 | 10.232.27.193 – 10.232.27.206 | 10.232.27.207 |
| 190 | 10.232.27.208/28 | 10.232.27.209 – 10.232.27.222 | 10.232.27.223 |
| 191 | 10.232.27.224/28 | 10.232.27.225 – 10.232.27.238 | 10.232.27.239 |
| 192 | 10.232.27.240/28 | 10.232.27.241 – 10.232.27.254 | 10.232.27.255 |
| 193 | 10.232.28.0/28 | 10.232.28.1 – 10.232.28.14 | 10.232.28.15 |
| 194 | 10.232.28.16/28 | 10.232.28.17 – 10.232.28.30 | 10.232.28.31 |
| 195 | 10.232.28.32/28 | 10.232.28.33 – 10.232.28.46 | 10.232.28.47 |
| 196 | 10.232.28.48/28 | 10.232.28.49 – 10.232.28.62 | 10.232.28.63 |
| 197 | 10.232.28.64/28 | 10.232.28.65 – 10.232.28.78 | 10.232.28.79 |
| 198 | 10.232.28.80/28 | 10.232.28.81 – 10.232.28.94 | 10.232.28.95 |
| 199 | 10.232.28.96/28 | 10.232.28.97 – 10.232.28.110 | 10.232.28.111 |
| 200 | 10.232.28.112/28 | 10.232.28.113 – 10.232.28.126 | 10.232.28.127 |
| 201 | 10.232.28.128/28 | 10.232.28.129 – 10.232.28.142 | 10.232.28.143 |
| 202 | 10.232.28.144/28 | 10.232.28.145 – 10.232.28.158 | 10.232.28.159 |
| 203 | 10.232.28.160/28 | 10.232.28.161 – 10.232.28.174 | 10.232.28.175 |
| 204 | 10.232.28.176/28 | 10.232.28.177 – 10.232.28.190 | 10.232.28.191 |
| 205 | 10.232.28.192/28 | 10.232.28.193 – 10.232.28.206 | 10.232.28.207 |
| 206 | 10.232.28.208/28 | 10.232.28.209 – 10.232.28.222 | 10.232.28.223 |
| 207 | 10.232.28.224/28 | 10.232.28.225 – 10.232.28.238 | 10.232.28.239 |
| 208 | 10.232.28.240/28 | 10.232.28.241 – 10.232.28.254 | 10.232.28.255 |
| 209 | 10.232.29.0/28 | 10.232.29.1 – 10.232.29.14 | 10.232.29.15 |
| 210 | 10.232.29.16/28 | 10.232.29.17 – 10.232.29.30 | 10.232.29.31 |
| 211 | 10.232.29.32/28 | 10.232.29.33 – 10.232.29.46 | 10.232.29.47 |
| 212 | 10.232.29.48/28 | 10.232.29.49 – 10.232.29.62 | 10.232.29.63 |
| 213 | 10.232.29.64/28 | 10.232.29.65 – 10.232.29.78 | 10.232.29.79 |
| 214 | 10.232.29.80/28 | 10.232.29.81 – 10.232.29.94 | 10.232.29.95 |
| 215 | 10.232.29.96/28 | 10.232.29.97 – 10.232.29.110 | 10.232.29.111 |
| 216 | 10.232.29.112/28 | 10.232.29.113 – 10.232.29.126 | 10.232.29.127 |
| 217 | 10.232.29.128/28 | 10.232.29.129 – 10.232.29.142 | 10.232.29.143 |
| 218 | 10.232.29.144/28 | 10.232.29.145 – 10.232.29.158 | 10.232.29.159 |
| 219 | 10.232.29.160/28 | 10.232.29.161 – 10.232.29.174 | 10.232.29.175 |
| 220 | 10.232.29.176/28 | 10.232.29.177 – 10.232.29.190 | 10.232.29.191 |
| 221 | 10.232.29.192/28 | 10.232.29.193 – 10.232.29.206 | 10.232.29.207 |
| 222 | 10.232.29.208/28 | 10.232.29.209 – 10.232.29.222 | 10.232.29.223 |
| 223 | 10.232.29.224/28 | 10.232.29.225 – 10.232.29.238 | 10.232.29.239 |
| 224 | 10.232.29.240/28 | 10.232.29.241 – 10.232.29.254 | 10.232.29.255 |
| 225 | 10.232.30.0/28 | 10.232.30.1 – 10.232.30.14 | 10.232.30.15 |
| 226 | 10.232.30.16/28 | 10.232.30.17 – 10.232.30.30 | 10.232.30.31 |
| 227 | 10.232.30.32/28 | 10.232.30.33 – 10.232.30.46 | 10.232.30.47 |
| 228 | 10.232.30.48/28 | 10.232.30.49 – 10.232.30.62 | 10.232.30.63 |
| 229 | 10.232.30.64/28 | 10.232.30.65 – 10.232.30.78 | 10.232.30.79 |
| 230 | 10.232.30.80/28 | 10.232.30.81 – 10.232.30.94 | 10.232.30.95 |
| 231 | 10.232.30.96/28 | 10.232.30.97 – 10.232.30.110 | 10.232.30.111 |
| 232 | 10.232.30.112/28 | 10.232.30.113 – 10.232.30.126 | 10.232.30.127 |
| 233 | 10.232.30.128/28 | 10.232.30.129 – 10.232.30.142 | 10.232.30.143 |
| 234 | 10.232.30.144/28 | 10.232.30.145 – 10.232.30.158 | 10.232.30.159 |
| 235 | 10.232.30.160/28 | 10.232.30.161 – 10.232.30.174 | 10.232.30.175 |
| 236 | 10.232.30.176/28 | 10.232.30.177 – 10.232.30.190 | 10.232.30.191 |
| 237 | 10.232.30.192/28 | 10.232.30.193 – 10.232.30.206 | 10.232.30.207 |
| 238 | 10.232.30.208/28 | 10.232.30.209 – 10.232.30.222 | 10.232.30.223 |
| 239 | 10.232.30.224/28 | 10.232.30.225 – 10.232.30.238 | 10.232.30.239 |
| 240 | 10.232.30.240/28 | 10.232.30.241 – 10.232.30.254 | 10.232.30.255 |
| 241 | 10.232.31.0/28 | 10.232.31.1 – 10.232.31.14 | 10.232.31.15 |
| 242 | 10.232.31.16/28 | 10.232.31.17 – 10.232.31.30 | 10.232.31.31 |
| 243 | 10.232.31.32/28 | 10.232.31.33 – 10.232.31.46 | 10.232.31.47 |
| 244 | 10.232.31.48/28 | 10.232.31.49 – 10.232.31.62 | 10.232.31.63 |
| 245 | 10.232.31.64/28 | 10.232.31.65 – 10.232.31.78 | 10.232.31.79 |
| 246 | 10.232.31.80/28 | 10.232.31.81 – 10.232.31.94 | 10.232.31.95 |
| 247 | 10.232.31.96/28 | 10.232.31.97 – 10.232.31.110 | 10.232.31.111 |
| 248 | 10.232.31.112/28 | 10.232.31.113 – 10.232.31.126 | 10.232.31.127 |
| 249 | 10.232.31.128/28 | 10.232.31.129 – 10.232.31.142 | 10.232.31.143 |
| 250 | 10.232.31.144/28 | 10.232.31.145 – 10.232.31.158 | 10.232.31.159 |
| 251 | 10.232.31.160/28 | 10.232.31.161 – 10.232.31.174 | 10.232.31.175 |
| 252 | 10.232.31.176/28 | 10.232.31.177 – 10.232.31.190 | 10.232.31.191 |
| 253 | 10.232.31.192/28 | 10.232.31.193 – 10.232.31.206 | 10.232.31.207 |
| 254 | 10.232.31.208/28 | 10.232.31.209 – 10.232.31.222 | 10.232.31.223 |
| 255 | 10.232.31.224/28 | 10.232.31.225 – 10.232.31.238 | 10.232.31.239 |
| 256 | 10.232.31.240/28 | 10.232.31.241 – 10.232.31.254 | 10.232.31.255 |
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.