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)10.31.32.0/19
network10.31.32.0/19
broadcast10.31.63.255
first host10.31.32.1
last host10.31.63.254
subnet mask255.255.224.0
wildcard0.0.31.255
addresses8,192
usable hosts8,190
classA
ipcalc 10.31.32.0/19
address00001010.00011111.00100000.00000000
subnet mask11111111.11111111.11100000.00000000
network00001010.00011111.00100000.00000000
broadcast00001010.00011111.00111111.11111111
green = network part, grey = host part
hex0x0a1f2000
decimal169811968
reverse dns0.32.31.10.in-addr.arpa
ipv4-mapped::ffff:a1f:2000
/19 split into /29 · 1,024 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.31.32.0/29 | 10.31.32.1 – 10.31.32.6 | 10.31.32.7 |
| 2 | 10.31.32.8/29 | 10.31.32.9 – 10.31.32.14 | 10.31.32.15 |
| 3 | 10.31.32.16/29 | 10.31.32.17 – 10.31.32.22 | 10.31.32.23 |
| 4 | 10.31.32.24/29 | 10.31.32.25 – 10.31.32.30 | 10.31.32.31 |
| 5 | 10.31.32.32/29 | 10.31.32.33 – 10.31.32.38 | 10.31.32.39 |
| 6 | 10.31.32.40/29 | 10.31.32.41 – 10.31.32.46 | 10.31.32.47 |
| 7 | 10.31.32.48/29 | 10.31.32.49 – 10.31.32.54 | 10.31.32.55 |
| 8 | 10.31.32.56/29 | 10.31.32.57 – 10.31.32.62 | 10.31.32.63 |
| 9 | 10.31.32.64/29 | 10.31.32.65 – 10.31.32.70 | 10.31.32.71 |
| 10 | 10.31.32.72/29 | 10.31.32.73 – 10.31.32.78 | 10.31.32.79 |
| 11 | 10.31.32.80/29 | 10.31.32.81 – 10.31.32.86 | 10.31.32.87 |
| 12 | 10.31.32.88/29 | 10.31.32.89 – 10.31.32.94 | 10.31.32.95 |
| 13 | 10.31.32.96/29 | 10.31.32.97 – 10.31.32.102 | 10.31.32.103 |
| 14 | 10.31.32.104/29 | 10.31.32.105 – 10.31.32.110 | 10.31.32.111 |
| 15 | 10.31.32.112/29 | 10.31.32.113 – 10.31.32.118 | 10.31.32.119 |
| 16 | 10.31.32.120/29 | 10.31.32.121 – 10.31.32.126 | 10.31.32.127 |
| 17 | 10.31.32.128/29 | 10.31.32.129 – 10.31.32.134 | 10.31.32.135 |
| 18 | 10.31.32.136/29 | 10.31.32.137 – 10.31.32.142 | 10.31.32.143 |
| 19 | 10.31.32.144/29 | 10.31.32.145 – 10.31.32.150 | 10.31.32.151 |
| 20 | 10.31.32.152/29 | 10.31.32.153 – 10.31.32.158 | 10.31.32.159 |
| 21 | 10.31.32.160/29 | 10.31.32.161 – 10.31.32.166 | 10.31.32.167 |
| 22 | 10.31.32.168/29 | 10.31.32.169 – 10.31.32.174 | 10.31.32.175 |
| 23 | 10.31.32.176/29 | 10.31.32.177 – 10.31.32.182 | 10.31.32.183 |
| 24 | 10.31.32.184/29 | 10.31.32.185 – 10.31.32.190 | 10.31.32.191 |
| 25 | 10.31.32.192/29 | 10.31.32.193 – 10.31.32.198 | 10.31.32.199 |
| 26 | 10.31.32.200/29 | 10.31.32.201 – 10.31.32.206 | 10.31.32.207 |
| 27 | 10.31.32.208/29 | 10.31.32.209 – 10.31.32.214 | 10.31.32.215 |
| 28 | 10.31.32.216/29 | 10.31.32.217 – 10.31.32.222 | 10.31.32.223 |
| 29 | 10.31.32.224/29 | 10.31.32.225 – 10.31.32.230 | 10.31.32.231 |
| 30 | 10.31.32.232/29 | 10.31.32.233 – 10.31.32.238 | 10.31.32.239 |
| 31 | 10.31.32.240/29 | 10.31.32.241 – 10.31.32.246 | 10.31.32.247 |
| 32 | 10.31.32.248/29 | 10.31.32.249 – 10.31.32.254 | 10.31.32.255 |
| 33 | 10.31.33.0/29 | 10.31.33.1 – 10.31.33.6 | 10.31.33.7 |
| 34 | 10.31.33.8/29 | 10.31.33.9 – 10.31.33.14 | 10.31.33.15 |
| 35 | 10.31.33.16/29 | 10.31.33.17 – 10.31.33.22 | 10.31.33.23 |
| 36 | 10.31.33.24/29 | 10.31.33.25 – 10.31.33.30 | 10.31.33.31 |
| 37 | 10.31.33.32/29 | 10.31.33.33 – 10.31.33.38 | 10.31.33.39 |
| 38 | 10.31.33.40/29 | 10.31.33.41 – 10.31.33.46 | 10.31.33.47 |
| 39 | 10.31.33.48/29 | 10.31.33.49 – 10.31.33.54 | 10.31.33.55 |
| 40 | 10.31.33.56/29 | 10.31.33.57 – 10.31.33.62 | 10.31.33.63 |
| 41 | 10.31.33.64/29 | 10.31.33.65 – 10.31.33.70 | 10.31.33.71 |
| 42 | 10.31.33.72/29 | 10.31.33.73 – 10.31.33.78 | 10.31.33.79 |
| 43 | 10.31.33.80/29 | 10.31.33.81 – 10.31.33.86 | 10.31.33.87 |
| 44 | 10.31.33.88/29 | 10.31.33.89 – 10.31.33.94 | 10.31.33.95 |
| 45 | 10.31.33.96/29 | 10.31.33.97 – 10.31.33.102 | 10.31.33.103 |
| 46 | 10.31.33.104/29 | 10.31.33.105 – 10.31.33.110 | 10.31.33.111 |
| 47 | 10.31.33.112/29 | 10.31.33.113 – 10.31.33.118 | 10.31.33.119 |
| 48 | 10.31.33.120/29 | 10.31.33.121 – 10.31.33.126 | 10.31.33.127 |
| 49 | 10.31.33.128/29 | 10.31.33.129 – 10.31.33.134 | 10.31.33.135 |
| 50 | 10.31.33.136/29 | 10.31.33.137 – 10.31.33.142 | 10.31.33.143 |
| 51 | 10.31.33.144/29 | 10.31.33.145 – 10.31.33.150 | 10.31.33.151 |
| 52 | 10.31.33.152/29 | 10.31.33.153 – 10.31.33.158 | 10.31.33.159 |
| 53 | 10.31.33.160/29 | 10.31.33.161 – 10.31.33.166 | 10.31.33.167 |
| 54 | 10.31.33.168/29 | 10.31.33.169 – 10.31.33.174 | 10.31.33.175 |
| 55 | 10.31.33.176/29 | 10.31.33.177 – 10.31.33.182 | 10.31.33.183 |
| 56 | 10.31.33.184/29 | 10.31.33.185 – 10.31.33.190 | 10.31.33.191 |
| 57 | 10.31.33.192/29 | 10.31.33.193 – 10.31.33.198 | 10.31.33.199 |
| 58 | 10.31.33.200/29 | 10.31.33.201 – 10.31.33.206 | 10.31.33.207 |
| 59 | 10.31.33.208/29 | 10.31.33.209 – 10.31.33.214 | 10.31.33.215 |
| 60 | 10.31.33.216/29 | 10.31.33.217 – 10.31.33.222 | 10.31.33.223 |
| 61 | 10.31.33.224/29 | 10.31.33.225 – 10.31.33.230 | 10.31.33.231 |
| 62 | 10.31.33.232/29 | 10.31.33.233 – 10.31.33.238 | 10.31.33.239 |
| 63 | 10.31.33.240/29 | 10.31.33.241 – 10.31.33.246 | 10.31.33.247 |
| 64 | 10.31.33.248/29 | 10.31.33.249 – 10.31.33.254 | 10.31.33.255 |
| 65 | 10.31.34.0/29 | 10.31.34.1 – 10.31.34.6 | 10.31.34.7 |
| 66 | 10.31.34.8/29 | 10.31.34.9 – 10.31.34.14 | 10.31.34.15 |
| 67 | 10.31.34.16/29 | 10.31.34.17 – 10.31.34.22 | 10.31.34.23 |
| 68 | 10.31.34.24/29 | 10.31.34.25 – 10.31.34.30 | 10.31.34.31 |
| 69 | 10.31.34.32/29 | 10.31.34.33 – 10.31.34.38 | 10.31.34.39 |
| 70 | 10.31.34.40/29 | 10.31.34.41 – 10.31.34.46 | 10.31.34.47 |
| 71 | 10.31.34.48/29 | 10.31.34.49 – 10.31.34.54 | 10.31.34.55 |
| 72 | 10.31.34.56/29 | 10.31.34.57 – 10.31.34.62 | 10.31.34.63 |
| 73 | 10.31.34.64/29 | 10.31.34.65 – 10.31.34.70 | 10.31.34.71 |
| 74 | 10.31.34.72/29 | 10.31.34.73 – 10.31.34.78 | 10.31.34.79 |
| 75 | 10.31.34.80/29 | 10.31.34.81 – 10.31.34.86 | 10.31.34.87 |
| 76 | 10.31.34.88/29 | 10.31.34.89 – 10.31.34.94 | 10.31.34.95 |
| 77 | 10.31.34.96/29 | 10.31.34.97 – 10.31.34.102 | 10.31.34.103 |
| 78 | 10.31.34.104/29 | 10.31.34.105 – 10.31.34.110 | 10.31.34.111 |
| 79 | 10.31.34.112/29 | 10.31.34.113 – 10.31.34.118 | 10.31.34.119 |
| 80 | 10.31.34.120/29 | 10.31.34.121 – 10.31.34.126 | 10.31.34.127 |
| 81 | 10.31.34.128/29 | 10.31.34.129 – 10.31.34.134 | 10.31.34.135 |
| 82 | 10.31.34.136/29 | 10.31.34.137 – 10.31.34.142 | 10.31.34.143 |
| 83 | 10.31.34.144/29 | 10.31.34.145 – 10.31.34.150 | 10.31.34.151 |
| 84 | 10.31.34.152/29 | 10.31.34.153 – 10.31.34.158 | 10.31.34.159 |
| 85 | 10.31.34.160/29 | 10.31.34.161 – 10.31.34.166 | 10.31.34.167 |
| 86 | 10.31.34.168/29 | 10.31.34.169 – 10.31.34.174 | 10.31.34.175 |
| 87 | 10.31.34.176/29 | 10.31.34.177 – 10.31.34.182 | 10.31.34.183 |
| 88 | 10.31.34.184/29 | 10.31.34.185 – 10.31.34.190 | 10.31.34.191 |
| 89 | 10.31.34.192/29 | 10.31.34.193 – 10.31.34.198 | 10.31.34.199 |
| 90 | 10.31.34.200/29 | 10.31.34.201 – 10.31.34.206 | 10.31.34.207 |
| 91 | 10.31.34.208/29 | 10.31.34.209 – 10.31.34.214 | 10.31.34.215 |
| 92 | 10.31.34.216/29 | 10.31.34.217 – 10.31.34.222 | 10.31.34.223 |
| 93 | 10.31.34.224/29 | 10.31.34.225 – 10.31.34.230 | 10.31.34.231 |
| 94 | 10.31.34.232/29 | 10.31.34.233 – 10.31.34.238 | 10.31.34.239 |
| 95 | 10.31.34.240/29 | 10.31.34.241 – 10.31.34.246 | 10.31.34.247 |
| 96 | 10.31.34.248/29 | 10.31.34.249 – 10.31.34.254 | 10.31.34.255 |
| 97 | 10.31.35.0/29 | 10.31.35.1 – 10.31.35.6 | 10.31.35.7 |
| 98 | 10.31.35.8/29 | 10.31.35.9 – 10.31.35.14 | 10.31.35.15 |
| 99 | 10.31.35.16/29 | 10.31.35.17 – 10.31.35.22 | 10.31.35.23 |
| 100 | 10.31.35.24/29 | 10.31.35.25 – 10.31.35.30 | 10.31.35.31 |
| 101 | 10.31.35.32/29 | 10.31.35.33 – 10.31.35.38 | 10.31.35.39 |
| 102 | 10.31.35.40/29 | 10.31.35.41 – 10.31.35.46 | 10.31.35.47 |
| 103 | 10.31.35.48/29 | 10.31.35.49 – 10.31.35.54 | 10.31.35.55 |
| 104 | 10.31.35.56/29 | 10.31.35.57 – 10.31.35.62 | 10.31.35.63 |
| 105 | 10.31.35.64/29 | 10.31.35.65 – 10.31.35.70 | 10.31.35.71 |
| 106 | 10.31.35.72/29 | 10.31.35.73 – 10.31.35.78 | 10.31.35.79 |
| 107 | 10.31.35.80/29 | 10.31.35.81 – 10.31.35.86 | 10.31.35.87 |
| 108 | 10.31.35.88/29 | 10.31.35.89 – 10.31.35.94 | 10.31.35.95 |
| 109 | 10.31.35.96/29 | 10.31.35.97 – 10.31.35.102 | 10.31.35.103 |
| 110 | 10.31.35.104/29 | 10.31.35.105 – 10.31.35.110 | 10.31.35.111 |
| 111 | 10.31.35.112/29 | 10.31.35.113 – 10.31.35.118 | 10.31.35.119 |
| 112 | 10.31.35.120/29 | 10.31.35.121 – 10.31.35.126 | 10.31.35.127 |
| 113 | 10.31.35.128/29 | 10.31.35.129 – 10.31.35.134 | 10.31.35.135 |
| 114 | 10.31.35.136/29 | 10.31.35.137 – 10.31.35.142 | 10.31.35.143 |
| 115 | 10.31.35.144/29 | 10.31.35.145 – 10.31.35.150 | 10.31.35.151 |
| 116 | 10.31.35.152/29 | 10.31.35.153 – 10.31.35.158 | 10.31.35.159 |
| 117 | 10.31.35.160/29 | 10.31.35.161 – 10.31.35.166 | 10.31.35.167 |
| 118 | 10.31.35.168/29 | 10.31.35.169 – 10.31.35.174 | 10.31.35.175 |
| 119 | 10.31.35.176/29 | 10.31.35.177 – 10.31.35.182 | 10.31.35.183 |
| 120 | 10.31.35.184/29 | 10.31.35.185 – 10.31.35.190 | 10.31.35.191 |
| 121 | 10.31.35.192/29 | 10.31.35.193 – 10.31.35.198 | 10.31.35.199 |
| 122 | 10.31.35.200/29 | 10.31.35.201 – 10.31.35.206 | 10.31.35.207 |
| 123 | 10.31.35.208/29 | 10.31.35.209 – 10.31.35.214 | 10.31.35.215 |
| 124 | 10.31.35.216/29 | 10.31.35.217 – 10.31.35.222 | 10.31.35.223 |
| 125 | 10.31.35.224/29 | 10.31.35.225 – 10.31.35.230 | 10.31.35.231 |
| 126 | 10.31.35.232/29 | 10.31.35.233 – 10.31.35.238 | 10.31.35.239 |
| 127 | 10.31.35.240/29 | 10.31.35.241 – 10.31.35.246 | 10.31.35.247 |
| 128 | 10.31.35.248/29 | 10.31.35.249 – 10.31.35.254 | 10.31.35.255 |
| 129 | 10.31.36.0/29 | 10.31.36.1 – 10.31.36.6 | 10.31.36.7 |
| 130 | 10.31.36.8/29 | 10.31.36.9 – 10.31.36.14 | 10.31.36.15 |
| 131 | 10.31.36.16/29 | 10.31.36.17 – 10.31.36.22 | 10.31.36.23 |
| 132 | 10.31.36.24/29 | 10.31.36.25 – 10.31.36.30 | 10.31.36.31 |
| 133 | 10.31.36.32/29 | 10.31.36.33 – 10.31.36.38 | 10.31.36.39 |
| 134 | 10.31.36.40/29 | 10.31.36.41 – 10.31.36.46 | 10.31.36.47 |
| 135 | 10.31.36.48/29 | 10.31.36.49 – 10.31.36.54 | 10.31.36.55 |
| 136 | 10.31.36.56/29 | 10.31.36.57 – 10.31.36.62 | 10.31.36.63 |
| 137 | 10.31.36.64/29 | 10.31.36.65 – 10.31.36.70 | 10.31.36.71 |
| 138 | 10.31.36.72/29 | 10.31.36.73 – 10.31.36.78 | 10.31.36.79 |
| 139 | 10.31.36.80/29 | 10.31.36.81 – 10.31.36.86 | 10.31.36.87 |
| 140 | 10.31.36.88/29 | 10.31.36.89 – 10.31.36.94 | 10.31.36.95 |
| 141 | 10.31.36.96/29 | 10.31.36.97 – 10.31.36.102 | 10.31.36.103 |
| 142 | 10.31.36.104/29 | 10.31.36.105 – 10.31.36.110 | 10.31.36.111 |
| 143 | 10.31.36.112/29 | 10.31.36.113 – 10.31.36.118 | 10.31.36.119 |
| 144 | 10.31.36.120/29 | 10.31.36.121 – 10.31.36.126 | 10.31.36.127 |
| 145 | 10.31.36.128/29 | 10.31.36.129 – 10.31.36.134 | 10.31.36.135 |
| 146 | 10.31.36.136/29 | 10.31.36.137 – 10.31.36.142 | 10.31.36.143 |
| 147 | 10.31.36.144/29 | 10.31.36.145 – 10.31.36.150 | 10.31.36.151 |
| 148 | 10.31.36.152/29 | 10.31.36.153 – 10.31.36.158 | 10.31.36.159 |
| 149 | 10.31.36.160/29 | 10.31.36.161 – 10.31.36.166 | 10.31.36.167 |
| 150 | 10.31.36.168/29 | 10.31.36.169 – 10.31.36.174 | 10.31.36.175 |
| 151 | 10.31.36.176/29 | 10.31.36.177 – 10.31.36.182 | 10.31.36.183 |
| 152 | 10.31.36.184/29 | 10.31.36.185 – 10.31.36.190 | 10.31.36.191 |
| 153 | 10.31.36.192/29 | 10.31.36.193 – 10.31.36.198 | 10.31.36.199 |
| 154 | 10.31.36.200/29 | 10.31.36.201 – 10.31.36.206 | 10.31.36.207 |
| 155 | 10.31.36.208/29 | 10.31.36.209 – 10.31.36.214 | 10.31.36.215 |
| 156 | 10.31.36.216/29 | 10.31.36.217 – 10.31.36.222 | 10.31.36.223 |
| 157 | 10.31.36.224/29 | 10.31.36.225 – 10.31.36.230 | 10.31.36.231 |
| 158 | 10.31.36.232/29 | 10.31.36.233 – 10.31.36.238 | 10.31.36.239 |
| 159 | 10.31.36.240/29 | 10.31.36.241 – 10.31.36.246 | 10.31.36.247 |
| 160 | 10.31.36.248/29 | 10.31.36.249 – 10.31.36.254 | 10.31.36.255 |
| 161 | 10.31.37.0/29 | 10.31.37.1 – 10.31.37.6 | 10.31.37.7 |
| 162 | 10.31.37.8/29 | 10.31.37.9 – 10.31.37.14 | 10.31.37.15 |
| 163 | 10.31.37.16/29 | 10.31.37.17 – 10.31.37.22 | 10.31.37.23 |
| 164 | 10.31.37.24/29 | 10.31.37.25 – 10.31.37.30 | 10.31.37.31 |
| 165 | 10.31.37.32/29 | 10.31.37.33 – 10.31.37.38 | 10.31.37.39 |
| 166 | 10.31.37.40/29 | 10.31.37.41 – 10.31.37.46 | 10.31.37.47 |
| 167 | 10.31.37.48/29 | 10.31.37.49 – 10.31.37.54 | 10.31.37.55 |
| 168 | 10.31.37.56/29 | 10.31.37.57 – 10.31.37.62 | 10.31.37.63 |
| 169 | 10.31.37.64/29 | 10.31.37.65 – 10.31.37.70 | 10.31.37.71 |
| 170 | 10.31.37.72/29 | 10.31.37.73 – 10.31.37.78 | 10.31.37.79 |
| 171 | 10.31.37.80/29 | 10.31.37.81 – 10.31.37.86 | 10.31.37.87 |
| 172 | 10.31.37.88/29 | 10.31.37.89 – 10.31.37.94 | 10.31.37.95 |
| 173 | 10.31.37.96/29 | 10.31.37.97 – 10.31.37.102 | 10.31.37.103 |
| 174 | 10.31.37.104/29 | 10.31.37.105 – 10.31.37.110 | 10.31.37.111 |
| 175 | 10.31.37.112/29 | 10.31.37.113 – 10.31.37.118 | 10.31.37.119 |
| 176 | 10.31.37.120/29 | 10.31.37.121 – 10.31.37.126 | 10.31.37.127 |
| 177 | 10.31.37.128/29 | 10.31.37.129 – 10.31.37.134 | 10.31.37.135 |
| 178 | 10.31.37.136/29 | 10.31.37.137 – 10.31.37.142 | 10.31.37.143 |
| 179 | 10.31.37.144/29 | 10.31.37.145 – 10.31.37.150 | 10.31.37.151 |
| 180 | 10.31.37.152/29 | 10.31.37.153 – 10.31.37.158 | 10.31.37.159 |
| 181 | 10.31.37.160/29 | 10.31.37.161 – 10.31.37.166 | 10.31.37.167 |
| 182 | 10.31.37.168/29 | 10.31.37.169 – 10.31.37.174 | 10.31.37.175 |
| 183 | 10.31.37.176/29 | 10.31.37.177 – 10.31.37.182 | 10.31.37.183 |
| 184 | 10.31.37.184/29 | 10.31.37.185 – 10.31.37.190 | 10.31.37.191 |
| 185 | 10.31.37.192/29 | 10.31.37.193 – 10.31.37.198 | 10.31.37.199 |
| 186 | 10.31.37.200/29 | 10.31.37.201 – 10.31.37.206 | 10.31.37.207 |
| 187 | 10.31.37.208/29 | 10.31.37.209 – 10.31.37.214 | 10.31.37.215 |
| 188 | 10.31.37.216/29 | 10.31.37.217 – 10.31.37.222 | 10.31.37.223 |
| 189 | 10.31.37.224/29 | 10.31.37.225 – 10.31.37.230 | 10.31.37.231 |
| 190 | 10.31.37.232/29 | 10.31.37.233 – 10.31.37.238 | 10.31.37.239 |
| 191 | 10.31.37.240/29 | 10.31.37.241 – 10.31.37.246 | 10.31.37.247 |
| 192 | 10.31.37.248/29 | 10.31.37.249 – 10.31.37.254 | 10.31.37.255 |
| 193 | 10.31.38.0/29 | 10.31.38.1 – 10.31.38.6 | 10.31.38.7 |
| 194 | 10.31.38.8/29 | 10.31.38.9 – 10.31.38.14 | 10.31.38.15 |
| 195 | 10.31.38.16/29 | 10.31.38.17 – 10.31.38.22 | 10.31.38.23 |
| 196 | 10.31.38.24/29 | 10.31.38.25 – 10.31.38.30 | 10.31.38.31 |
| 197 | 10.31.38.32/29 | 10.31.38.33 – 10.31.38.38 | 10.31.38.39 |
| 198 | 10.31.38.40/29 | 10.31.38.41 – 10.31.38.46 | 10.31.38.47 |
| 199 | 10.31.38.48/29 | 10.31.38.49 – 10.31.38.54 | 10.31.38.55 |
| 200 | 10.31.38.56/29 | 10.31.38.57 – 10.31.38.62 | 10.31.38.63 |
| 201 | 10.31.38.64/29 | 10.31.38.65 – 10.31.38.70 | 10.31.38.71 |
| 202 | 10.31.38.72/29 | 10.31.38.73 – 10.31.38.78 | 10.31.38.79 |
| 203 | 10.31.38.80/29 | 10.31.38.81 – 10.31.38.86 | 10.31.38.87 |
| 204 | 10.31.38.88/29 | 10.31.38.89 – 10.31.38.94 | 10.31.38.95 |
| 205 | 10.31.38.96/29 | 10.31.38.97 – 10.31.38.102 | 10.31.38.103 |
| 206 | 10.31.38.104/29 | 10.31.38.105 – 10.31.38.110 | 10.31.38.111 |
| 207 | 10.31.38.112/29 | 10.31.38.113 – 10.31.38.118 | 10.31.38.119 |
| 208 | 10.31.38.120/29 | 10.31.38.121 – 10.31.38.126 | 10.31.38.127 |
| 209 | 10.31.38.128/29 | 10.31.38.129 – 10.31.38.134 | 10.31.38.135 |
| 210 | 10.31.38.136/29 | 10.31.38.137 – 10.31.38.142 | 10.31.38.143 |
| 211 | 10.31.38.144/29 | 10.31.38.145 – 10.31.38.150 | 10.31.38.151 |
| 212 | 10.31.38.152/29 | 10.31.38.153 – 10.31.38.158 | 10.31.38.159 |
| 213 | 10.31.38.160/29 | 10.31.38.161 – 10.31.38.166 | 10.31.38.167 |
| 214 | 10.31.38.168/29 | 10.31.38.169 – 10.31.38.174 | 10.31.38.175 |
| 215 | 10.31.38.176/29 | 10.31.38.177 – 10.31.38.182 | 10.31.38.183 |
| 216 | 10.31.38.184/29 | 10.31.38.185 – 10.31.38.190 | 10.31.38.191 |
| 217 | 10.31.38.192/29 | 10.31.38.193 – 10.31.38.198 | 10.31.38.199 |
| 218 | 10.31.38.200/29 | 10.31.38.201 – 10.31.38.206 | 10.31.38.207 |
| 219 | 10.31.38.208/29 | 10.31.38.209 – 10.31.38.214 | 10.31.38.215 |
| 220 | 10.31.38.216/29 | 10.31.38.217 – 10.31.38.222 | 10.31.38.223 |
| 221 | 10.31.38.224/29 | 10.31.38.225 – 10.31.38.230 | 10.31.38.231 |
| 222 | 10.31.38.232/29 | 10.31.38.233 – 10.31.38.238 | 10.31.38.239 |
| 223 | 10.31.38.240/29 | 10.31.38.241 – 10.31.38.246 | 10.31.38.247 |
| 224 | 10.31.38.248/29 | 10.31.38.249 – 10.31.38.254 | 10.31.38.255 |
| 225 | 10.31.39.0/29 | 10.31.39.1 – 10.31.39.6 | 10.31.39.7 |
| 226 | 10.31.39.8/29 | 10.31.39.9 – 10.31.39.14 | 10.31.39.15 |
| 227 | 10.31.39.16/29 | 10.31.39.17 – 10.31.39.22 | 10.31.39.23 |
| 228 | 10.31.39.24/29 | 10.31.39.25 – 10.31.39.30 | 10.31.39.31 |
| 229 | 10.31.39.32/29 | 10.31.39.33 – 10.31.39.38 | 10.31.39.39 |
| 230 | 10.31.39.40/29 | 10.31.39.41 – 10.31.39.46 | 10.31.39.47 |
| 231 | 10.31.39.48/29 | 10.31.39.49 – 10.31.39.54 | 10.31.39.55 |
| 232 | 10.31.39.56/29 | 10.31.39.57 – 10.31.39.62 | 10.31.39.63 |
| 233 | 10.31.39.64/29 | 10.31.39.65 – 10.31.39.70 | 10.31.39.71 |
| 234 | 10.31.39.72/29 | 10.31.39.73 – 10.31.39.78 | 10.31.39.79 |
| 235 | 10.31.39.80/29 | 10.31.39.81 – 10.31.39.86 | 10.31.39.87 |
| 236 | 10.31.39.88/29 | 10.31.39.89 – 10.31.39.94 | 10.31.39.95 |
| 237 | 10.31.39.96/29 | 10.31.39.97 – 10.31.39.102 | 10.31.39.103 |
| 238 | 10.31.39.104/29 | 10.31.39.105 – 10.31.39.110 | 10.31.39.111 |
| 239 | 10.31.39.112/29 | 10.31.39.113 – 10.31.39.118 | 10.31.39.119 |
| 240 | 10.31.39.120/29 | 10.31.39.121 – 10.31.39.126 | 10.31.39.127 |
| 241 | 10.31.39.128/29 | 10.31.39.129 – 10.31.39.134 | 10.31.39.135 |
| 242 | 10.31.39.136/29 | 10.31.39.137 – 10.31.39.142 | 10.31.39.143 |
| 243 | 10.31.39.144/29 | 10.31.39.145 – 10.31.39.150 | 10.31.39.151 |
| 244 | 10.31.39.152/29 | 10.31.39.153 – 10.31.39.158 | 10.31.39.159 |
| 245 | 10.31.39.160/29 | 10.31.39.161 – 10.31.39.166 | 10.31.39.167 |
| 246 | 10.31.39.168/29 | 10.31.39.169 – 10.31.39.174 | 10.31.39.175 |
| 247 | 10.31.39.176/29 | 10.31.39.177 – 10.31.39.182 | 10.31.39.183 |
| 248 | 10.31.39.184/29 | 10.31.39.185 – 10.31.39.190 | 10.31.39.191 |
| 249 | 10.31.39.192/29 | 10.31.39.193 – 10.31.39.198 | 10.31.39.199 |
| 250 | 10.31.39.200/29 | 10.31.39.201 – 10.31.39.206 | 10.31.39.207 |
| 251 | 10.31.39.208/29 | 10.31.39.209 – 10.31.39.214 | 10.31.39.215 |
| 252 | 10.31.39.216/29 | 10.31.39.217 – 10.31.39.222 | 10.31.39.223 |
| 253 | 10.31.39.224/29 | 10.31.39.225 – 10.31.39.230 | 10.31.39.231 |
| 254 | 10.31.39.232/29 | 10.31.39.233 – 10.31.39.238 | 10.31.39.239 |
| 255 | 10.31.39.240/29 | 10.31.39.241 – 10.31.39.246 | 10.31.39.247 |
| 256 | 10.31.39.248/29 | 10.31.39.249 – 10.31.39.254 | 10.31.39.255 |
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 /19 |
|---|---|---|---|---|
| /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 | 1 |
| /20 | 255.255.240.0 | 4,096 | 4,094 | 2 split → |
| /21 | 255.255.248.0 | 2,048 | 2,046 | 4 split → |
| /22 | 255.255.252.0 | 1,024 | 1,022 | 8 split → |
| /23 | 255.255.254.0 | 512 | 510 | 16 split → |
| /24 | 255.255.255.0 | 256 | 254 | 32 split → |
| /25 | 255.255.255.128 | 128 | 126 | 64 split → |
| /26 | 255.255.255.192 | 64 | 62 | 128 split → |
| /27 | 255.255.255.224 | 32 | 30 | 256 split → |
| /28 | 255.255.255.240 | 16 | 14 | 512 split → |
| /29 | 255.255.255.248 | 8 | 6 | 1,024 split → |
| /30 | 255.255.255.252 | 4 | 2 | 2,048 split → |
| /31 | 255.255.255.254 | 2 | 2 | 4,096 split → |
| /32 | 255.255.255.255 | 1 | 1 | 8,192 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.