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)10.239.80.0/20
network10.239.80.0/20
broadcast10.239.95.255
first host10.239.80.1
last host10.239.95.254
subnet mask255.255.240.0
wildcard0.0.15.255
addresses4,096
usable hosts4,094
classA
ipcalc 10.239.80.0/20
address00001010.11101111.01010000.00000000
subnet mask11111111.11111111.11110000.00000000
network00001010.11101111.01010000.00000000
broadcast00001010.11101111.01011111.11111111
green = network part, grey = host part
hex0x0aef5000
decimal183455744
reverse dns0.80.239.10.in-addr.arpa
ipv4-mapped::ffff:aef:5000
/20 split into /28 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.239.80.0/28 | 10.239.80.1 – 10.239.80.14 | 10.239.80.15 |
| 2 | 10.239.80.16/28 | 10.239.80.17 – 10.239.80.30 | 10.239.80.31 |
| 3 | 10.239.80.32/28 | 10.239.80.33 – 10.239.80.46 | 10.239.80.47 |
| 4 | 10.239.80.48/28 | 10.239.80.49 – 10.239.80.62 | 10.239.80.63 |
| 5 | 10.239.80.64/28 | 10.239.80.65 – 10.239.80.78 | 10.239.80.79 |
| 6 | 10.239.80.80/28 | 10.239.80.81 – 10.239.80.94 | 10.239.80.95 |
| 7 | 10.239.80.96/28 | 10.239.80.97 – 10.239.80.110 | 10.239.80.111 |
| 8 | 10.239.80.112/28 | 10.239.80.113 – 10.239.80.126 | 10.239.80.127 |
| 9 | 10.239.80.128/28 | 10.239.80.129 – 10.239.80.142 | 10.239.80.143 |
| 10 | 10.239.80.144/28 | 10.239.80.145 – 10.239.80.158 | 10.239.80.159 |
| 11 | 10.239.80.160/28 | 10.239.80.161 – 10.239.80.174 | 10.239.80.175 |
| 12 | 10.239.80.176/28 | 10.239.80.177 – 10.239.80.190 | 10.239.80.191 |
| 13 | 10.239.80.192/28 | 10.239.80.193 – 10.239.80.206 | 10.239.80.207 |
| 14 | 10.239.80.208/28 | 10.239.80.209 – 10.239.80.222 | 10.239.80.223 |
| 15 | 10.239.80.224/28 | 10.239.80.225 – 10.239.80.238 | 10.239.80.239 |
| 16 | 10.239.80.240/28 | 10.239.80.241 – 10.239.80.254 | 10.239.80.255 |
| 17 | 10.239.81.0/28 | 10.239.81.1 – 10.239.81.14 | 10.239.81.15 |
| 18 | 10.239.81.16/28 | 10.239.81.17 – 10.239.81.30 | 10.239.81.31 |
| 19 | 10.239.81.32/28 | 10.239.81.33 – 10.239.81.46 | 10.239.81.47 |
| 20 | 10.239.81.48/28 | 10.239.81.49 – 10.239.81.62 | 10.239.81.63 |
| 21 | 10.239.81.64/28 | 10.239.81.65 – 10.239.81.78 | 10.239.81.79 |
| 22 | 10.239.81.80/28 | 10.239.81.81 – 10.239.81.94 | 10.239.81.95 |
| 23 | 10.239.81.96/28 | 10.239.81.97 – 10.239.81.110 | 10.239.81.111 |
| 24 | 10.239.81.112/28 | 10.239.81.113 – 10.239.81.126 | 10.239.81.127 |
| 25 | 10.239.81.128/28 | 10.239.81.129 – 10.239.81.142 | 10.239.81.143 |
| 26 | 10.239.81.144/28 | 10.239.81.145 – 10.239.81.158 | 10.239.81.159 |
| 27 | 10.239.81.160/28 | 10.239.81.161 – 10.239.81.174 | 10.239.81.175 |
| 28 | 10.239.81.176/28 | 10.239.81.177 – 10.239.81.190 | 10.239.81.191 |
| 29 | 10.239.81.192/28 | 10.239.81.193 – 10.239.81.206 | 10.239.81.207 |
| 30 | 10.239.81.208/28 | 10.239.81.209 – 10.239.81.222 | 10.239.81.223 |
| 31 | 10.239.81.224/28 | 10.239.81.225 – 10.239.81.238 | 10.239.81.239 |
| 32 | 10.239.81.240/28 | 10.239.81.241 – 10.239.81.254 | 10.239.81.255 |
| 33 | 10.239.82.0/28 | 10.239.82.1 – 10.239.82.14 | 10.239.82.15 |
| 34 | 10.239.82.16/28 | 10.239.82.17 – 10.239.82.30 | 10.239.82.31 |
| 35 | 10.239.82.32/28 | 10.239.82.33 – 10.239.82.46 | 10.239.82.47 |
| 36 | 10.239.82.48/28 | 10.239.82.49 – 10.239.82.62 | 10.239.82.63 |
| 37 | 10.239.82.64/28 | 10.239.82.65 – 10.239.82.78 | 10.239.82.79 |
| 38 | 10.239.82.80/28 | 10.239.82.81 – 10.239.82.94 | 10.239.82.95 |
| 39 | 10.239.82.96/28 | 10.239.82.97 – 10.239.82.110 | 10.239.82.111 |
| 40 | 10.239.82.112/28 | 10.239.82.113 – 10.239.82.126 | 10.239.82.127 |
| 41 | 10.239.82.128/28 | 10.239.82.129 – 10.239.82.142 | 10.239.82.143 |
| 42 | 10.239.82.144/28 | 10.239.82.145 – 10.239.82.158 | 10.239.82.159 |
| 43 | 10.239.82.160/28 | 10.239.82.161 – 10.239.82.174 | 10.239.82.175 |
| 44 | 10.239.82.176/28 | 10.239.82.177 – 10.239.82.190 | 10.239.82.191 |
| 45 | 10.239.82.192/28 | 10.239.82.193 – 10.239.82.206 | 10.239.82.207 |
| 46 | 10.239.82.208/28 | 10.239.82.209 – 10.239.82.222 | 10.239.82.223 |
| 47 | 10.239.82.224/28 | 10.239.82.225 – 10.239.82.238 | 10.239.82.239 |
| 48 | 10.239.82.240/28 | 10.239.82.241 – 10.239.82.254 | 10.239.82.255 |
| 49 | 10.239.83.0/28 | 10.239.83.1 – 10.239.83.14 | 10.239.83.15 |
| 50 | 10.239.83.16/28 | 10.239.83.17 – 10.239.83.30 | 10.239.83.31 |
| 51 | 10.239.83.32/28 | 10.239.83.33 – 10.239.83.46 | 10.239.83.47 |
| 52 | 10.239.83.48/28 | 10.239.83.49 – 10.239.83.62 | 10.239.83.63 |
| 53 | 10.239.83.64/28 | 10.239.83.65 – 10.239.83.78 | 10.239.83.79 |
| 54 | 10.239.83.80/28 | 10.239.83.81 – 10.239.83.94 | 10.239.83.95 |
| 55 | 10.239.83.96/28 | 10.239.83.97 – 10.239.83.110 | 10.239.83.111 |
| 56 | 10.239.83.112/28 | 10.239.83.113 – 10.239.83.126 | 10.239.83.127 |
| 57 | 10.239.83.128/28 | 10.239.83.129 – 10.239.83.142 | 10.239.83.143 |
| 58 | 10.239.83.144/28 | 10.239.83.145 – 10.239.83.158 | 10.239.83.159 |
| 59 | 10.239.83.160/28 | 10.239.83.161 – 10.239.83.174 | 10.239.83.175 |
| 60 | 10.239.83.176/28 | 10.239.83.177 – 10.239.83.190 | 10.239.83.191 |
| 61 | 10.239.83.192/28 | 10.239.83.193 – 10.239.83.206 | 10.239.83.207 |
| 62 | 10.239.83.208/28 | 10.239.83.209 – 10.239.83.222 | 10.239.83.223 |
| 63 | 10.239.83.224/28 | 10.239.83.225 – 10.239.83.238 | 10.239.83.239 |
| 64 | 10.239.83.240/28 | 10.239.83.241 – 10.239.83.254 | 10.239.83.255 |
| 65 | 10.239.84.0/28 | 10.239.84.1 – 10.239.84.14 | 10.239.84.15 |
| 66 | 10.239.84.16/28 | 10.239.84.17 – 10.239.84.30 | 10.239.84.31 |
| 67 | 10.239.84.32/28 | 10.239.84.33 – 10.239.84.46 | 10.239.84.47 |
| 68 | 10.239.84.48/28 | 10.239.84.49 – 10.239.84.62 | 10.239.84.63 |
| 69 | 10.239.84.64/28 | 10.239.84.65 – 10.239.84.78 | 10.239.84.79 |
| 70 | 10.239.84.80/28 | 10.239.84.81 – 10.239.84.94 | 10.239.84.95 |
| 71 | 10.239.84.96/28 | 10.239.84.97 – 10.239.84.110 | 10.239.84.111 |
| 72 | 10.239.84.112/28 | 10.239.84.113 – 10.239.84.126 | 10.239.84.127 |
| 73 | 10.239.84.128/28 | 10.239.84.129 – 10.239.84.142 | 10.239.84.143 |
| 74 | 10.239.84.144/28 | 10.239.84.145 – 10.239.84.158 | 10.239.84.159 |
| 75 | 10.239.84.160/28 | 10.239.84.161 – 10.239.84.174 | 10.239.84.175 |
| 76 | 10.239.84.176/28 | 10.239.84.177 – 10.239.84.190 | 10.239.84.191 |
| 77 | 10.239.84.192/28 | 10.239.84.193 – 10.239.84.206 | 10.239.84.207 |
| 78 | 10.239.84.208/28 | 10.239.84.209 – 10.239.84.222 | 10.239.84.223 |
| 79 | 10.239.84.224/28 | 10.239.84.225 – 10.239.84.238 | 10.239.84.239 |
| 80 | 10.239.84.240/28 | 10.239.84.241 – 10.239.84.254 | 10.239.84.255 |
| 81 | 10.239.85.0/28 | 10.239.85.1 – 10.239.85.14 | 10.239.85.15 |
| 82 | 10.239.85.16/28 | 10.239.85.17 – 10.239.85.30 | 10.239.85.31 |
| 83 | 10.239.85.32/28 | 10.239.85.33 – 10.239.85.46 | 10.239.85.47 |
| 84 | 10.239.85.48/28 | 10.239.85.49 – 10.239.85.62 | 10.239.85.63 |
| 85 | 10.239.85.64/28 | 10.239.85.65 – 10.239.85.78 | 10.239.85.79 |
| 86 | 10.239.85.80/28 | 10.239.85.81 – 10.239.85.94 | 10.239.85.95 |
| 87 | 10.239.85.96/28 | 10.239.85.97 – 10.239.85.110 | 10.239.85.111 |
| 88 | 10.239.85.112/28 | 10.239.85.113 – 10.239.85.126 | 10.239.85.127 |
| 89 | 10.239.85.128/28 | 10.239.85.129 – 10.239.85.142 | 10.239.85.143 |
| 90 | 10.239.85.144/28 | 10.239.85.145 – 10.239.85.158 | 10.239.85.159 |
| 91 | 10.239.85.160/28 | 10.239.85.161 – 10.239.85.174 | 10.239.85.175 |
| 92 | 10.239.85.176/28 | 10.239.85.177 – 10.239.85.190 | 10.239.85.191 |
| 93 | 10.239.85.192/28 | 10.239.85.193 – 10.239.85.206 | 10.239.85.207 |
| 94 | 10.239.85.208/28 | 10.239.85.209 – 10.239.85.222 | 10.239.85.223 |
| 95 | 10.239.85.224/28 | 10.239.85.225 – 10.239.85.238 | 10.239.85.239 |
| 96 | 10.239.85.240/28 | 10.239.85.241 – 10.239.85.254 | 10.239.85.255 |
| 97 | 10.239.86.0/28 | 10.239.86.1 – 10.239.86.14 | 10.239.86.15 |
| 98 | 10.239.86.16/28 | 10.239.86.17 – 10.239.86.30 | 10.239.86.31 |
| 99 | 10.239.86.32/28 | 10.239.86.33 – 10.239.86.46 | 10.239.86.47 |
| 100 | 10.239.86.48/28 | 10.239.86.49 – 10.239.86.62 | 10.239.86.63 |
| 101 | 10.239.86.64/28 | 10.239.86.65 – 10.239.86.78 | 10.239.86.79 |
| 102 | 10.239.86.80/28 | 10.239.86.81 – 10.239.86.94 | 10.239.86.95 |
| 103 | 10.239.86.96/28 | 10.239.86.97 – 10.239.86.110 | 10.239.86.111 |
| 104 | 10.239.86.112/28 | 10.239.86.113 – 10.239.86.126 | 10.239.86.127 |
| 105 | 10.239.86.128/28 | 10.239.86.129 – 10.239.86.142 | 10.239.86.143 |
| 106 | 10.239.86.144/28 | 10.239.86.145 – 10.239.86.158 | 10.239.86.159 |
| 107 | 10.239.86.160/28 | 10.239.86.161 – 10.239.86.174 | 10.239.86.175 |
| 108 | 10.239.86.176/28 | 10.239.86.177 – 10.239.86.190 | 10.239.86.191 |
| 109 | 10.239.86.192/28 | 10.239.86.193 – 10.239.86.206 | 10.239.86.207 |
| 110 | 10.239.86.208/28 | 10.239.86.209 – 10.239.86.222 | 10.239.86.223 |
| 111 | 10.239.86.224/28 | 10.239.86.225 – 10.239.86.238 | 10.239.86.239 |
| 112 | 10.239.86.240/28 | 10.239.86.241 – 10.239.86.254 | 10.239.86.255 |
| 113 | 10.239.87.0/28 | 10.239.87.1 – 10.239.87.14 | 10.239.87.15 |
| 114 | 10.239.87.16/28 | 10.239.87.17 – 10.239.87.30 | 10.239.87.31 |
| 115 | 10.239.87.32/28 | 10.239.87.33 – 10.239.87.46 | 10.239.87.47 |
| 116 | 10.239.87.48/28 | 10.239.87.49 – 10.239.87.62 | 10.239.87.63 |
| 117 | 10.239.87.64/28 | 10.239.87.65 – 10.239.87.78 | 10.239.87.79 |
| 118 | 10.239.87.80/28 | 10.239.87.81 – 10.239.87.94 | 10.239.87.95 |
| 119 | 10.239.87.96/28 | 10.239.87.97 – 10.239.87.110 | 10.239.87.111 |
| 120 | 10.239.87.112/28 | 10.239.87.113 – 10.239.87.126 | 10.239.87.127 |
| 121 | 10.239.87.128/28 | 10.239.87.129 – 10.239.87.142 | 10.239.87.143 |
| 122 | 10.239.87.144/28 | 10.239.87.145 – 10.239.87.158 | 10.239.87.159 |
| 123 | 10.239.87.160/28 | 10.239.87.161 – 10.239.87.174 | 10.239.87.175 |
| 124 | 10.239.87.176/28 | 10.239.87.177 – 10.239.87.190 | 10.239.87.191 |
| 125 | 10.239.87.192/28 | 10.239.87.193 – 10.239.87.206 | 10.239.87.207 |
| 126 | 10.239.87.208/28 | 10.239.87.209 – 10.239.87.222 | 10.239.87.223 |
| 127 | 10.239.87.224/28 | 10.239.87.225 – 10.239.87.238 | 10.239.87.239 |
| 128 | 10.239.87.240/28 | 10.239.87.241 – 10.239.87.254 | 10.239.87.255 |
| 129 | 10.239.88.0/28 | 10.239.88.1 – 10.239.88.14 | 10.239.88.15 |
| 130 | 10.239.88.16/28 | 10.239.88.17 – 10.239.88.30 | 10.239.88.31 |
| 131 | 10.239.88.32/28 | 10.239.88.33 – 10.239.88.46 | 10.239.88.47 |
| 132 | 10.239.88.48/28 | 10.239.88.49 – 10.239.88.62 | 10.239.88.63 |
| 133 | 10.239.88.64/28 | 10.239.88.65 – 10.239.88.78 | 10.239.88.79 |
| 134 | 10.239.88.80/28 | 10.239.88.81 – 10.239.88.94 | 10.239.88.95 |
| 135 | 10.239.88.96/28 | 10.239.88.97 – 10.239.88.110 | 10.239.88.111 |
| 136 | 10.239.88.112/28 | 10.239.88.113 – 10.239.88.126 | 10.239.88.127 |
| 137 | 10.239.88.128/28 | 10.239.88.129 – 10.239.88.142 | 10.239.88.143 |
| 138 | 10.239.88.144/28 | 10.239.88.145 – 10.239.88.158 | 10.239.88.159 |
| 139 | 10.239.88.160/28 | 10.239.88.161 – 10.239.88.174 | 10.239.88.175 |
| 140 | 10.239.88.176/28 | 10.239.88.177 – 10.239.88.190 | 10.239.88.191 |
| 141 | 10.239.88.192/28 | 10.239.88.193 – 10.239.88.206 | 10.239.88.207 |
| 142 | 10.239.88.208/28 | 10.239.88.209 – 10.239.88.222 | 10.239.88.223 |
| 143 | 10.239.88.224/28 | 10.239.88.225 – 10.239.88.238 | 10.239.88.239 |
| 144 | 10.239.88.240/28 | 10.239.88.241 – 10.239.88.254 | 10.239.88.255 |
| 145 | 10.239.89.0/28 | 10.239.89.1 – 10.239.89.14 | 10.239.89.15 |
| 146 | 10.239.89.16/28 | 10.239.89.17 – 10.239.89.30 | 10.239.89.31 |
| 147 | 10.239.89.32/28 | 10.239.89.33 – 10.239.89.46 | 10.239.89.47 |
| 148 | 10.239.89.48/28 | 10.239.89.49 – 10.239.89.62 | 10.239.89.63 |
| 149 | 10.239.89.64/28 | 10.239.89.65 – 10.239.89.78 | 10.239.89.79 |
| 150 | 10.239.89.80/28 | 10.239.89.81 – 10.239.89.94 | 10.239.89.95 |
| 151 | 10.239.89.96/28 | 10.239.89.97 – 10.239.89.110 | 10.239.89.111 |
| 152 | 10.239.89.112/28 | 10.239.89.113 – 10.239.89.126 | 10.239.89.127 |
| 153 | 10.239.89.128/28 | 10.239.89.129 – 10.239.89.142 | 10.239.89.143 |
| 154 | 10.239.89.144/28 | 10.239.89.145 – 10.239.89.158 | 10.239.89.159 |
| 155 | 10.239.89.160/28 | 10.239.89.161 – 10.239.89.174 | 10.239.89.175 |
| 156 | 10.239.89.176/28 | 10.239.89.177 – 10.239.89.190 | 10.239.89.191 |
| 157 | 10.239.89.192/28 | 10.239.89.193 – 10.239.89.206 | 10.239.89.207 |
| 158 | 10.239.89.208/28 | 10.239.89.209 – 10.239.89.222 | 10.239.89.223 |
| 159 | 10.239.89.224/28 | 10.239.89.225 – 10.239.89.238 | 10.239.89.239 |
| 160 | 10.239.89.240/28 | 10.239.89.241 – 10.239.89.254 | 10.239.89.255 |
| 161 | 10.239.90.0/28 | 10.239.90.1 – 10.239.90.14 | 10.239.90.15 |
| 162 | 10.239.90.16/28 | 10.239.90.17 – 10.239.90.30 | 10.239.90.31 |
| 163 | 10.239.90.32/28 | 10.239.90.33 – 10.239.90.46 | 10.239.90.47 |
| 164 | 10.239.90.48/28 | 10.239.90.49 – 10.239.90.62 | 10.239.90.63 |
| 165 | 10.239.90.64/28 | 10.239.90.65 – 10.239.90.78 | 10.239.90.79 |
| 166 | 10.239.90.80/28 | 10.239.90.81 – 10.239.90.94 | 10.239.90.95 |
| 167 | 10.239.90.96/28 | 10.239.90.97 – 10.239.90.110 | 10.239.90.111 |
| 168 | 10.239.90.112/28 | 10.239.90.113 – 10.239.90.126 | 10.239.90.127 |
| 169 | 10.239.90.128/28 | 10.239.90.129 – 10.239.90.142 | 10.239.90.143 |
| 170 | 10.239.90.144/28 | 10.239.90.145 – 10.239.90.158 | 10.239.90.159 |
| 171 | 10.239.90.160/28 | 10.239.90.161 – 10.239.90.174 | 10.239.90.175 |
| 172 | 10.239.90.176/28 | 10.239.90.177 – 10.239.90.190 | 10.239.90.191 |
| 173 | 10.239.90.192/28 | 10.239.90.193 – 10.239.90.206 | 10.239.90.207 |
| 174 | 10.239.90.208/28 | 10.239.90.209 – 10.239.90.222 | 10.239.90.223 |
| 175 | 10.239.90.224/28 | 10.239.90.225 – 10.239.90.238 | 10.239.90.239 |
| 176 | 10.239.90.240/28 | 10.239.90.241 – 10.239.90.254 | 10.239.90.255 |
| 177 | 10.239.91.0/28 | 10.239.91.1 – 10.239.91.14 | 10.239.91.15 |
| 178 | 10.239.91.16/28 | 10.239.91.17 – 10.239.91.30 | 10.239.91.31 |
| 179 | 10.239.91.32/28 | 10.239.91.33 – 10.239.91.46 | 10.239.91.47 |
| 180 | 10.239.91.48/28 | 10.239.91.49 – 10.239.91.62 | 10.239.91.63 |
| 181 | 10.239.91.64/28 | 10.239.91.65 – 10.239.91.78 | 10.239.91.79 |
| 182 | 10.239.91.80/28 | 10.239.91.81 – 10.239.91.94 | 10.239.91.95 |
| 183 | 10.239.91.96/28 | 10.239.91.97 – 10.239.91.110 | 10.239.91.111 |
| 184 | 10.239.91.112/28 | 10.239.91.113 – 10.239.91.126 | 10.239.91.127 |
| 185 | 10.239.91.128/28 | 10.239.91.129 – 10.239.91.142 | 10.239.91.143 |
| 186 | 10.239.91.144/28 | 10.239.91.145 – 10.239.91.158 | 10.239.91.159 |
| 187 | 10.239.91.160/28 | 10.239.91.161 – 10.239.91.174 | 10.239.91.175 |
| 188 | 10.239.91.176/28 | 10.239.91.177 – 10.239.91.190 | 10.239.91.191 |
| 189 | 10.239.91.192/28 | 10.239.91.193 – 10.239.91.206 | 10.239.91.207 |
| 190 | 10.239.91.208/28 | 10.239.91.209 – 10.239.91.222 | 10.239.91.223 |
| 191 | 10.239.91.224/28 | 10.239.91.225 – 10.239.91.238 | 10.239.91.239 |
| 192 | 10.239.91.240/28 | 10.239.91.241 – 10.239.91.254 | 10.239.91.255 |
| 193 | 10.239.92.0/28 | 10.239.92.1 – 10.239.92.14 | 10.239.92.15 |
| 194 | 10.239.92.16/28 | 10.239.92.17 – 10.239.92.30 | 10.239.92.31 |
| 195 | 10.239.92.32/28 | 10.239.92.33 – 10.239.92.46 | 10.239.92.47 |
| 196 | 10.239.92.48/28 | 10.239.92.49 – 10.239.92.62 | 10.239.92.63 |
| 197 | 10.239.92.64/28 | 10.239.92.65 – 10.239.92.78 | 10.239.92.79 |
| 198 | 10.239.92.80/28 | 10.239.92.81 – 10.239.92.94 | 10.239.92.95 |
| 199 | 10.239.92.96/28 | 10.239.92.97 – 10.239.92.110 | 10.239.92.111 |
| 200 | 10.239.92.112/28 | 10.239.92.113 – 10.239.92.126 | 10.239.92.127 |
| 201 | 10.239.92.128/28 | 10.239.92.129 – 10.239.92.142 | 10.239.92.143 |
| 202 | 10.239.92.144/28 | 10.239.92.145 – 10.239.92.158 | 10.239.92.159 |
| 203 | 10.239.92.160/28 | 10.239.92.161 – 10.239.92.174 | 10.239.92.175 |
| 204 | 10.239.92.176/28 | 10.239.92.177 – 10.239.92.190 | 10.239.92.191 |
| 205 | 10.239.92.192/28 | 10.239.92.193 – 10.239.92.206 | 10.239.92.207 |
| 206 | 10.239.92.208/28 | 10.239.92.209 – 10.239.92.222 | 10.239.92.223 |
| 207 | 10.239.92.224/28 | 10.239.92.225 – 10.239.92.238 | 10.239.92.239 |
| 208 | 10.239.92.240/28 | 10.239.92.241 – 10.239.92.254 | 10.239.92.255 |
| 209 | 10.239.93.0/28 | 10.239.93.1 – 10.239.93.14 | 10.239.93.15 |
| 210 | 10.239.93.16/28 | 10.239.93.17 – 10.239.93.30 | 10.239.93.31 |
| 211 | 10.239.93.32/28 | 10.239.93.33 – 10.239.93.46 | 10.239.93.47 |
| 212 | 10.239.93.48/28 | 10.239.93.49 – 10.239.93.62 | 10.239.93.63 |
| 213 | 10.239.93.64/28 | 10.239.93.65 – 10.239.93.78 | 10.239.93.79 |
| 214 | 10.239.93.80/28 | 10.239.93.81 – 10.239.93.94 | 10.239.93.95 |
| 215 | 10.239.93.96/28 | 10.239.93.97 – 10.239.93.110 | 10.239.93.111 |
| 216 | 10.239.93.112/28 | 10.239.93.113 – 10.239.93.126 | 10.239.93.127 |
| 217 | 10.239.93.128/28 | 10.239.93.129 – 10.239.93.142 | 10.239.93.143 |
| 218 | 10.239.93.144/28 | 10.239.93.145 – 10.239.93.158 | 10.239.93.159 |
| 219 | 10.239.93.160/28 | 10.239.93.161 – 10.239.93.174 | 10.239.93.175 |
| 220 | 10.239.93.176/28 | 10.239.93.177 – 10.239.93.190 | 10.239.93.191 |
| 221 | 10.239.93.192/28 | 10.239.93.193 – 10.239.93.206 | 10.239.93.207 |
| 222 | 10.239.93.208/28 | 10.239.93.209 – 10.239.93.222 | 10.239.93.223 |
| 223 | 10.239.93.224/28 | 10.239.93.225 – 10.239.93.238 | 10.239.93.239 |
| 224 | 10.239.93.240/28 | 10.239.93.241 – 10.239.93.254 | 10.239.93.255 |
| 225 | 10.239.94.0/28 | 10.239.94.1 – 10.239.94.14 | 10.239.94.15 |
| 226 | 10.239.94.16/28 | 10.239.94.17 – 10.239.94.30 | 10.239.94.31 |
| 227 | 10.239.94.32/28 | 10.239.94.33 – 10.239.94.46 | 10.239.94.47 |
| 228 | 10.239.94.48/28 | 10.239.94.49 – 10.239.94.62 | 10.239.94.63 |
| 229 | 10.239.94.64/28 | 10.239.94.65 – 10.239.94.78 | 10.239.94.79 |
| 230 | 10.239.94.80/28 | 10.239.94.81 – 10.239.94.94 | 10.239.94.95 |
| 231 | 10.239.94.96/28 | 10.239.94.97 – 10.239.94.110 | 10.239.94.111 |
| 232 | 10.239.94.112/28 | 10.239.94.113 – 10.239.94.126 | 10.239.94.127 |
| 233 | 10.239.94.128/28 | 10.239.94.129 – 10.239.94.142 | 10.239.94.143 |
| 234 | 10.239.94.144/28 | 10.239.94.145 – 10.239.94.158 | 10.239.94.159 |
| 235 | 10.239.94.160/28 | 10.239.94.161 – 10.239.94.174 | 10.239.94.175 |
| 236 | 10.239.94.176/28 | 10.239.94.177 – 10.239.94.190 | 10.239.94.191 |
| 237 | 10.239.94.192/28 | 10.239.94.193 – 10.239.94.206 | 10.239.94.207 |
| 238 | 10.239.94.208/28 | 10.239.94.209 – 10.239.94.222 | 10.239.94.223 |
| 239 | 10.239.94.224/28 | 10.239.94.225 – 10.239.94.238 | 10.239.94.239 |
| 240 | 10.239.94.240/28 | 10.239.94.241 – 10.239.94.254 | 10.239.94.255 |
| 241 | 10.239.95.0/28 | 10.239.95.1 – 10.239.95.14 | 10.239.95.15 |
| 242 | 10.239.95.16/28 | 10.239.95.17 – 10.239.95.30 | 10.239.95.31 |
| 243 | 10.239.95.32/28 | 10.239.95.33 – 10.239.95.46 | 10.239.95.47 |
| 244 | 10.239.95.48/28 | 10.239.95.49 – 10.239.95.62 | 10.239.95.63 |
| 245 | 10.239.95.64/28 | 10.239.95.65 – 10.239.95.78 | 10.239.95.79 |
| 246 | 10.239.95.80/28 | 10.239.95.81 – 10.239.95.94 | 10.239.95.95 |
| 247 | 10.239.95.96/28 | 10.239.95.97 – 10.239.95.110 | 10.239.95.111 |
| 248 | 10.239.95.112/28 | 10.239.95.113 – 10.239.95.126 | 10.239.95.127 |
| 249 | 10.239.95.128/28 | 10.239.95.129 – 10.239.95.142 | 10.239.95.143 |
| 250 | 10.239.95.144/28 | 10.239.95.145 – 10.239.95.158 | 10.239.95.159 |
| 251 | 10.239.95.160/28 | 10.239.95.161 – 10.239.95.174 | 10.239.95.175 |
| 252 | 10.239.95.176/28 | 10.239.95.177 – 10.239.95.190 | 10.239.95.191 |
| 253 | 10.239.95.192/28 | 10.239.95.193 – 10.239.95.206 | 10.239.95.207 |
| 254 | 10.239.95.208/28 | 10.239.95.209 – 10.239.95.222 | 10.239.95.223 |
| 255 | 10.239.95.224/28 | 10.239.95.225 – 10.239.95.238 | 10.239.95.239 |
| 256 | 10.239.95.240/28 | 10.239.95.241 – 10.239.95.254 | 10.239.95.255 |
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.