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)10.167.208.0/21
network10.167.208.0/21
broadcast10.167.215.255
first host10.167.208.1
last host10.167.215.254
subnet mask255.255.248.0
wildcard0.0.7.255
addresses2,048
usable hosts2,046
classA
ipcalc 10.167.208.0/21
address00001010.10100111.11010000.00000000
subnet mask11111111.11111111.11111000.00000000
network00001010.10100111.11010000.00000000
broadcast00001010.10100111.11010111.11111111
green = network part, grey = host part
hex0x0aa7d000
decimal178769920
reverse dns0.208.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:d000
/21 split into /29 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.167.208.0/29 | 10.167.208.1 – 10.167.208.6 | 10.167.208.7 |
| 2 | 10.167.208.8/29 | 10.167.208.9 – 10.167.208.14 | 10.167.208.15 |
| 3 | 10.167.208.16/29 | 10.167.208.17 – 10.167.208.22 | 10.167.208.23 |
| 4 | 10.167.208.24/29 | 10.167.208.25 – 10.167.208.30 | 10.167.208.31 |
| 5 | 10.167.208.32/29 | 10.167.208.33 – 10.167.208.38 | 10.167.208.39 |
| 6 | 10.167.208.40/29 | 10.167.208.41 – 10.167.208.46 | 10.167.208.47 |
| 7 | 10.167.208.48/29 | 10.167.208.49 – 10.167.208.54 | 10.167.208.55 |
| 8 | 10.167.208.56/29 | 10.167.208.57 – 10.167.208.62 | 10.167.208.63 |
| 9 | 10.167.208.64/29 | 10.167.208.65 – 10.167.208.70 | 10.167.208.71 |
| 10 | 10.167.208.72/29 | 10.167.208.73 – 10.167.208.78 | 10.167.208.79 |
| 11 | 10.167.208.80/29 | 10.167.208.81 – 10.167.208.86 | 10.167.208.87 |
| 12 | 10.167.208.88/29 | 10.167.208.89 – 10.167.208.94 | 10.167.208.95 |
| 13 | 10.167.208.96/29 | 10.167.208.97 – 10.167.208.102 | 10.167.208.103 |
| 14 | 10.167.208.104/29 | 10.167.208.105 – 10.167.208.110 | 10.167.208.111 |
| 15 | 10.167.208.112/29 | 10.167.208.113 – 10.167.208.118 | 10.167.208.119 |
| 16 | 10.167.208.120/29 | 10.167.208.121 – 10.167.208.126 | 10.167.208.127 |
| 17 | 10.167.208.128/29 | 10.167.208.129 – 10.167.208.134 | 10.167.208.135 |
| 18 | 10.167.208.136/29 | 10.167.208.137 – 10.167.208.142 | 10.167.208.143 |
| 19 | 10.167.208.144/29 | 10.167.208.145 – 10.167.208.150 | 10.167.208.151 |
| 20 | 10.167.208.152/29 | 10.167.208.153 – 10.167.208.158 | 10.167.208.159 |
| 21 | 10.167.208.160/29 | 10.167.208.161 – 10.167.208.166 | 10.167.208.167 |
| 22 | 10.167.208.168/29 | 10.167.208.169 – 10.167.208.174 | 10.167.208.175 |
| 23 | 10.167.208.176/29 | 10.167.208.177 – 10.167.208.182 | 10.167.208.183 |
| 24 | 10.167.208.184/29 | 10.167.208.185 – 10.167.208.190 | 10.167.208.191 |
| 25 | 10.167.208.192/29 | 10.167.208.193 – 10.167.208.198 | 10.167.208.199 |
| 26 | 10.167.208.200/29 | 10.167.208.201 – 10.167.208.206 | 10.167.208.207 |
| 27 | 10.167.208.208/29 | 10.167.208.209 – 10.167.208.214 | 10.167.208.215 |
| 28 | 10.167.208.216/29 | 10.167.208.217 – 10.167.208.222 | 10.167.208.223 |
| 29 | 10.167.208.224/29 | 10.167.208.225 – 10.167.208.230 | 10.167.208.231 |
| 30 | 10.167.208.232/29 | 10.167.208.233 – 10.167.208.238 | 10.167.208.239 |
| 31 | 10.167.208.240/29 | 10.167.208.241 – 10.167.208.246 | 10.167.208.247 |
| 32 | 10.167.208.248/29 | 10.167.208.249 – 10.167.208.254 | 10.167.208.255 |
| 33 | 10.167.209.0/29 | 10.167.209.1 – 10.167.209.6 | 10.167.209.7 |
| 34 | 10.167.209.8/29 | 10.167.209.9 – 10.167.209.14 | 10.167.209.15 |
| 35 | 10.167.209.16/29 | 10.167.209.17 – 10.167.209.22 | 10.167.209.23 |
| 36 | 10.167.209.24/29 | 10.167.209.25 – 10.167.209.30 | 10.167.209.31 |
| 37 | 10.167.209.32/29 | 10.167.209.33 – 10.167.209.38 | 10.167.209.39 |
| 38 | 10.167.209.40/29 | 10.167.209.41 – 10.167.209.46 | 10.167.209.47 |
| 39 | 10.167.209.48/29 | 10.167.209.49 – 10.167.209.54 | 10.167.209.55 |
| 40 | 10.167.209.56/29 | 10.167.209.57 – 10.167.209.62 | 10.167.209.63 |
| 41 | 10.167.209.64/29 | 10.167.209.65 – 10.167.209.70 | 10.167.209.71 |
| 42 | 10.167.209.72/29 | 10.167.209.73 – 10.167.209.78 | 10.167.209.79 |
| 43 | 10.167.209.80/29 | 10.167.209.81 – 10.167.209.86 | 10.167.209.87 |
| 44 | 10.167.209.88/29 | 10.167.209.89 – 10.167.209.94 | 10.167.209.95 |
| 45 | 10.167.209.96/29 | 10.167.209.97 – 10.167.209.102 | 10.167.209.103 |
| 46 | 10.167.209.104/29 | 10.167.209.105 – 10.167.209.110 | 10.167.209.111 |
| 47 | 10.167.209.112/29 | 10.167.209.113 – 10.167.209.118 | 10.167.209.119 |
| 48 | 10.167.209.120/29 | 10.167.209.121 – 10.167.209.126 | 10.167.209.127 |
| 49 | 10.167.209.128/29 | 10.167.209.129 – 10.167.209.134 | 10.167.209.135 |
| 50 | 10.167.209.136/29 | 10.167.209.137 – 10.167.209.142 | 10.167.209.143 |
| 51 | 10.167.209.144/29 | 10.167.209.145 – 10.167.209.150 | 10.167.209.151 |
| 52 | 10.167.209.152/29 | 10.167.209.153 – 10.167.209.158 | 10.167.209.159 |
| 53 | 10.167.209.160/29 | 10.167.209.161 – 10.167.209.166 | 10.167.209.167 |
| 54 | 10.167.209.168/29 | 10.167.209.169 – 10.167.209.174 | 10.167.209.175 |
| 55 | 10.167.209.176/29 | 10.167.209.177 – 10.167.209.182 | 10.167.209.183 |
| 56 | 10.167.209.184/29 | 10.167.209.185 – 10.167.209.190 | 10.167.209.191 |
| 57 | 10.167.209.192/29 | 10.167.209.193 – 10.167.209.198 | 10.167.209.199 |
| 58 | 10.167.209.200/29 | 10.167.209.201 – 10.167.209.206 | 10.167.209.207 |
| 59 | 10.167.209.208/29 | 10.167.209.209 – 10.167.209.214 | 10.167.209.215 |
| 60 | 10.167.209.216/29 | 10.167.209.217 – 10.167.209.222 | 10.167.209.223 |
| 61 | 10.167.209.224/29 | 10.167.209.225 – 10.167.209.230 | 10.167.209.231 |
| 62 | 10.167.209.232/29 | 10.167.209.233 – 10.167.209.238 | 10.167.209.239 |
| 63 | 10.167.209.240/29 | 10.167.209.241 – 10.167.209.246 | 10.167.209.247 |
| 64 | 10.167.209.248/29 | 10.167.209.249 – 10.167.209.254 | 10.167.209.255 |
| 65 | 10.167.210.0/29 | 10.167.210.1 – 10.167.210.6 | 10.167.210.7 |
| 66 | 10.167.210.8/29 | 10.167.210.9 – 10.167.210.14 | 10.167.210.15 |
| 67 | 10.167.210.16/29 | 10.167.210.17 – 10.167.210.22 | 10.167.210.23 |
| 68 | 10.167.210.24/29 | 10.167.210.25 – 10.167.210.30 | 10.167.210.31 |
| 69 | 10.167.210.32/29 | 10.167.210.33 – 10.167.210.38 | 10.167.210.39 |
| 70 | 10.167.210.40/29 | 10.167.210.41 – 10.167.210.46 | 10.167.210.47 |
| 71 | 10.167.210.48/29 | 10.167.210.49 – 10.167.210.54 | 10.167.210.55 |
| 72 | 10.167.210.56/29 | 10.167.210.57 – 10.167.210.62 | 10.167.210.63 |
| 73 | 10.167.210.64/29 | 10.167.210.65 – 10.167.210.70 | 10.167.210.71 |
| 74 | 10.167.210.72/29 | 10.167.210.73 – 10.167.210.78 | 10.167.210.79 |
| 75 | 10.167.210.80/29 | 10.167.210.81 – 10.167.210.86 | 10.167.210.87 |
| 76 | 10.167.210.88/29 | 10.167.210.89 – 10.167.210.94 | 10.167.210.95 |
| 77 | 10.167.210.96/29 | 10.167.210.97 – 10.167.210.102 | 10.167.210.103 |
| 78 | 10.167.210.104/29 | 10.167.210.105 – 10.167.210.110 | 10.167.210.111 |
| 79 | 10.167.210.112/29 | 10.167.210.113 – 10.167.210.118 | 10.167.210.119 |
| 80 | 10.167.210.120/29 | 10.167.210.121 – 10.167.210.126 | 10.167.210.127 |
| 81 | 10.167.210.128/29 | 10.167.210.129 – 10.167.210.134 | 10.167.210.135 |
| 82 | 10.167.210.136/29 | 10.167.210.137 – 10.167.210.142 | 10.167.210.143 |
| 83 | 10.167.210.144/29 | 10.167.210.145 – 10.167.210.150 | 10.167.210.151 |
| 84 | 10.167.210.152/29 | 10.167.210.153 – 10.167.210.158 | 10.167.210.159 |
| 85 | 10.167.210.160/29 | 10.167.210.161 – 10.167.210.166 | 10.167.210.167 |
| 86 | 10.167.210.168/29 | 10.167.210.169 – 10.167.210.174 | 10.167.210.175 |
| 87 | 10.167.210.176/29 | 10.167.210.177 – 10.167.210.182 | 10.167.210.183 |
| 88 | 10.167.210.184/29 | 10.167.210.185 – 10.167.210.190 | 10.167.210.191 |
| 89 | 10.167.210.192/29 | 10.167.210.193 – 10.167.210.198 | 10.167.210.199 |
| 90 | 10.167.210.200/29 | 10.167.210.201 – 10.167.210.206 | 10.167.210.207 |
| 91 | 10.167.210.208/29 | 10.167.210.209 – 10.167.210.214 | 10.167.210.215 |
| 92 | 10.167.210.216/29 | 10.167.210.217 – 10.167.210.222 | 10.167.210.223 |
| 93 | 10.167.210.224/29 | 10.167.210.225 – 10.167.210.230 | 10.167.210.231 |
| 94 | 10.167.210.232/29 | 10.167.210.233 – 10.167.210.238 | 10.167.210.239 |
| 95 | 10.167.210.240/29 | 10.167.210.241 – 10.167.210.246 | 10.167.210.247 |
| 96 | 10.167.210.248/29 | 10.167.210.249 – 10.167.210.254 | 10.167.210.255 |
| 97 | 10.167.211.0/29 | 10.167.211.1 – 10.167.211.6 | 10.167.211.7 |
| 98 | 10.167.211.8/29 | 10.167.211.9 – 10.167.211.14 | 10.167.211.15 |
| 99 | 10.167.211.16/29 | 10.167.211.17 – 10.167.211.22 | 10.167.211.23 |
| 100 | 10.167.211.24/29 | 10.167.211.25 – 10.167.211.30 | 10.167.211.31 |
| 101 | 10.167.211.32/29 | 10.167.211.33 – 10.167.211.38 | 10.167.211.39 |
| 102 | 10.167.211.40/29 | 10.167.211.41 – 10.167.211.46 | 10.167.211.47 |
| 103 | 10.167.211.48/29 | 10.167.211.49 – 10.167.211.54 | 10.167.211.55 |
| 104 | 10.167.211.56/29 | 10.167.211.57 – 10.167.211.62 | 10.167.211.63 |
| 105 | 10.167.211.64/29 | 10.167.211.65 – 10.167.211.70 | 10.167.211.71 |
| 106 | 10.167.211.72/29 | 10.167.211.73 – 10.167.211.78 | 10.167.211.79 |
| 107 | 10.167.211.80/29 | 10.167.211.81 – 10.167.211.86 | 10.167.211.87 |
| 108 | 10.167.211.88/29 | 10.167.211.89 – 10.167.211.94 | 10.167.211.95 |
| 109 | 10.167.211.96/29 | 10.167.211.97 – 10.167.211.102 | 10.167.211.103 |
| 110 | 10.167.211.104/29 | 10.167.211.105 – 10.167.211.110 | 10.167.211.111 |
| 111 | 10.167.211.112/29 | 10.167.211.113 – 10.167.211.118 | 10.167.211.119 |
| 112 | 10.167.211.120/29 | 10.167.211.121 – 10.167.211.126 | 10.167.211.127 |
| 113 | 10.167.211.128/29 | 10.167.211.129 – 10.167.211.134 | 10.167.211.135 |
| 114 | 10.167.211.136/29 | 10.167.211.137 – 10.167.211.142 | 10.167.211.143 |
| 115 | 10.167.211.144/29 | 10.167.211.145 – 10.167.211.150 | 10.167.211.151 |
| 116 | 10.167.211.152/29 | 10.167.211.153 – 10.167.211.158 | 10.167.211.159 |
| 117 | 10.167.211.160/29 | 10.167.211.161 – 10.167.211.166 | 10.167.211.167 |
| 118 | 10.167.211.168/29 | 10.167.211.169 – 10.167.211.174 | 10.167.211.175 |
| 119 | 10.167.211.176/29 | 10.167.211.177 – 10.167.211.182 | 10.167.211.183 |
| 120 | 10.167.211.184/29 | 10.167.211.185 – 10.167.211.190 | 10.167.211.191 |
| 121 | 10.167.211.192/29 | 10.167.211.193 – 10.167.211.198 | 10.167.211.199 |
| 122 | 10.167.211.200/29 | 10.167.211.201 – 10.167.211.206 | 10.167.211.207 |
| 123 | 10.167.211.208/29 | 10.167.211.209 – 10.167.211.214 | 10.167.211.215 |
| 124 | 10.167.211.216/29 | 10.167.211.217 – 10.167.211.222 | 10.167.211.223 |
| 125 | 10.167.211.224/29 | 10.167.211.225 – 10.167.211.230 | 10.167.211.231 |
| 126 | 10.167.211.232/29 | 10.167.211.233 – 10.167.211.238 | 10.167.211.239 |
| 127 | 10.167.211.240/29 | 10.167.211.241 – 10.167.211.246 | 10.167.211.247 |
| 128 | 10.167.211.248/29 | 10.167.211.249 – 10.167.211.254 | 10.167.211.255 |
| 129 | 10.167.212.0/29 | 10.167.212.1 – 10.167.212.6 | 10.167.212.7 |
| 130 | 10.167.212.8/29 | 10.167.212.9 – 10.167.212.14 | 10.167.212.15 |
| 131 | 10.167.212.16/29 | 10.167.212.17 – 10.167.212.22 | 10.167.212.23 |
| 132 | 10.167.212.24/29 | 10.167.212.25 – 10.167.212.30 | 10.167.212.31 |
| 133 | 10.167.212.32/29 | 10.167.212.33 – 10.167.212.38 | 10.167.212.39 |
| 134 | 10.167.212.40/29 | 10.167.212.41 – 10.167.212.46 | 10.167.212.47 |
| 135 | 10.167.212.48/29 | 10.167.212.49 – 10.167.212.54 | 10.167.212.55 |
| 136 | 10.167.212.56/29 | 10.167.212.57 – 10.167.212.62 | 10.167.212.63 |
| 137 | 10.167.212.64/29 | 10.167.212.65 – 10.167.212.70 | 10.167.212.71 |
| 138 | 10.167.212.72/29 | 10.167.212.73 – 10.167.212.78 | 10.167.212.79 |
| 139 | 10.167.212.80/29 | 10.167.212.81 – 10.167.212.86 | 10.167.212.87 |
| 140 | 10.167.212.88/29 | 10.167.212.89 – 10.167.212.94 | 10.167.212.95 |
| 141 | 10.167.212.96/29 | 10.167.212.97 – 10.167.212.102 | 10.167.212.103 |
| 142 | 10.167.212.104/29 | 10.167.212.105 – 10.167.212.110 | 10.167.212.111 |
| 143 | 10.167.212.112/29 | 10.167.212.113 – 10.167.212.118 | 10.167.212.119 |
| 144 | 10.167.212.120/29 | 10.167.212.121 – 10.167.212.126 | 10.167.212.127 |
| 145 | 10.167.212.128/29 | 10.167.212.129 – 10.167.212.134 | 10.167.212.135 |
| 146 | 10.167.212.136/29 | 10.167.212.137 – 10.167.212.142 | 10.167.212.143 |
| 147 | 10.167.212.144/29 | 10.167.212.145 – 10.167.212.150 | 10.167.212.151 |
| 148 | 10.167.212.152/29 | 10.167.212.153 – 10.167.212.158 | 10.167.212.159 |
| 149 | 10.167.212.160/29 | 10.167.212.161 – 10.167.212.166 | 10.167.212.167 |
| 150 | 10.167.212.168/29 | 10.167.212.169 – 10.167.212.174 | 10.167.212.175 |
| 151 | 10.167.212.176/29 | 10.167.212.177 – 10.167.212.182 | 10.167.212.183 |
| 152 | 10.167.212.184/29 | 10.167.212.185 – 10.167.212.190 | 10.167.212.191 |
| 153 | 10.167.212.192/29 | 10.167.212.193 – 10.167.212.198 | 10.167.212.199 |
| 154 | 10.167.212.200/29 | 10.167.212.201 – 10.167.212.206 | 10.167.212.207 |
| 155 | 10.167.212.208/29 | 10.167.212.209 – 10.167.212.214 | 10.167.212.215 |
| 156 | 10.167.212.216/29 | 10.167.212.217 – 10.167.212.222 | 10.167.212.223 |
| 157 | 10.167.212.224/29 | 10.167.212.225 – 10.167.212.230 | 10.167.212.231 |
| 158 | 10.167.212.232/29 | 10.167.212.233 – 10.167.212.238 | 10.167.212.239 |
| 159 | 10.167.212.240/29 | 10.167.212.241 – 10.167.212.246 | 10.167.212.247 |
| 160 | 10.167.212.248/29 | 10.167.212.249 – 10.167.212.254 | 10.167.212.255 |
| 161 | 10.167.213.0/29 | 10.167.213.1 – 10.167.213.6 | 10.167.213.7 |
| 162 | 10.167.213.8/29 | 10.167.213.9 – 10.167.213.14 | 10.167.213.15 |
| 163 | 10.167.213.16/29 | 10.167.213.17 – 10.167.213.22 | 10.167.213.23 |
| 164 | 10.167.213.24/29 | 10.167.213.25 – 10.167.213.30 | 10.167.213.31 |
| 165 | 10.167.213.32/29 | 10.167.213.33 – 10.167.213.38 | 10.167.213.39 |
| 166 | 10.167.213.40/29 | 10.167.213.41 – 10.167.213.46 | 10.167.213.47 |
| 167 | 10.167.213.48/29 | 10.167.213.49 – 10.167.213.54 | 10.167.213.55 |
| 168 | 10.167.213.56/29 | 10.167.213.57 – 10.167.213.62 | 10.167.213.63 |
| 169 | 10.167.213.64/29 | 10.167.213.65 – 10.167.213.70 | 10.167.213.71 |
| 170 | 10.167.213.72/29 | 10.167.213.73 – 10.167.213.78 | 10.167.213.79 |
| 171 | 10.167.213.80/29 | 10.167.213.81 – 10.167.213.86 | 10.167.213.87 |
| 172 | 10.167.213.88/29 | 10.167.213.89 – 10.167.213.94 | 10.167.213.95 |
| 173 | 10.167.213.96/29 | 10.167.213.97 – 10.167.213.102 | 10.167.213.103 |
| 174 | 10.167.213.104/29 | 10.167.213.105 – 10.167.213.110 | 10.167.213.111 |
| 175 | 10.167.213.112/29 | 10.167.213.113 – 10.167.213.118 | 10.167.213.119 |
| 176 | 10.167.213.120/29 | 10.167.213.121 – 10.167.213.126 | 10.167.213.127 |
| 177 | 10.167.213.128/29 | 10.167.213.129 – 10.167.213.134 | 10.167.213.135 |
| 178 | 10.167.213.136/29 | 10.167.213.137 – 10.167.213.142 | 10.167.213.143 |
| 179 | 10.167.213.144/29 | 10.167.213.145 – 10.167.213.150 | 10.167.213.151 |
| 180 | 10.167.213.152/29 | 10.167.213.153 – 10.167.213.158 | 10.167.213.159 |
| 181 | 10.167.213.160/29 | 10.167.213.161 – 10.167.213.166 | 10.167.213.167 |
| 182 | 10.167.213.168/29 | 10.167.213.169 – 10.167.213.174 | 10.167.213.175 |
| 183 | 10.167.213.176/29 | 10.167.213.177 – 10.167.213.182 | 10.167.213.183 |
| 184 | 10.167.213.184/29 | 10.167.213.185 – 10.167.213.190 | 10.167.213.191 |
| 185 | 10.167.213.192/29 | 10.167.213.193 – 10.167.213.198 | 10.167.213.199 |
| 186 | 10.167.213.200/29 | 10.167.213.201 – 10.167.213.206 | 10.167.213.207 |
| 187 | 10.167.213.208/29 | 10.167.213.209 – 10.167.213.214 | 10.167.213.215 |
| 188 | 10.167.213.216/29 | 10.167.213.217 – 10.167.213.222 | 10.167.213.223 |
| 189 | 10.167.213.224/29 | 10.167.213.225 – 10.167.213.230 | 10.167.213.231 |
| 190 | 10.167.213.232/29 | 10.167.213.233 – 10.167.213.238 | 10.167.213.239 |
| 191 | 10.167.213.240/29 | 10.167.213.241 – 10.167.213.246 | 10.167.213.247 |
| 192 | 10.167.213.248/29 | 10.167.213.249 – 10.167.213.254 | 10.167.213.255 |
| 193 | 10.167.214.0/29 | 10.167.214.1 – 10.167.214.6 | 10.167.214.7 |
| 194 | 10.167.214.8/29 | 10.167.214.9 – 10.167.214.14 | 10.167.214.15 |
| 195 | 10.167.214.16/29 | 10.167.214.17 – 10.167.214.22 | 10.167.214.23 |
| 196 | 10.167.214.24/29 | 10.167.214.25 – 10.167.214.30 | 10.167.214.31 |
| 197 | 10.167.214.32/29 | 10.167.214.33 – 10.167.214.38 | 10.167.214.39 |
| 198 | 10.167.214.40/29 | 10.167.214.41 – 10.167.214.46 | 10.167.214.47 |
| 199 | 10.167.214.48/29 | 10.167.214.49 – 10.167.214.54 | 10.167.214.55 |
| 200 | 10.167.214.56/29 | 10.167.214.57 – 10.167.214.62 | 10.167.214.63 |
| 201 | 10.167.214.64/29 | 10.167.214.65 – 10.167.214.70 | 10.167.214.71 |
| 202 | 10.167.214.72/29 | 10.167.214.73 – 10.167.214.78 | 10.167.214.79 |
| 203 | 10.167.214.80/29 | 10.167.214.81 – 10.167.214.86 | 10.167.214.87 |
| 204 | 10.167.214.88/29 | 10.167.214.89 – 10.167.214.94 | 10.167.214.95 |
| 205 | 10.167.214.96/29 | 10.167.214.97 – 10.167.214.102 | 10.167.214.103 |
| 206 | 10.167.214.104/29 | 10.167.214.105 – 10.167.214.110 | 10.167.214.111 |
| 207 | 10.167.214.112/29 | 10.167.214.113 – 10.167.214.118 | 10.167.214.119 |
| 208 | 10.167.214.120/29 | 10.167.214.121 – 10.167.214.126 | 10.167.214.127 |
| 209 | 10.167.214.128/29 | 10.167.214.129 – 10.167.214.134 | 10.167.214.135 |
| 210 | 10.167.214.136/29 | 10.167.214.137 – 10.167.214.142 | 10.167.214.143 |
| 211 | 10.167.214.144/29 | 10.167.214.145 – 10.167.214.150 | 10.167.214.151 |
| 212 | 10.167.214.152/29 | 10.167.214.153 – 10.167.214.158 | 10.167.214.159 |
| 213 | 10.167.214.160/29 | 10.167.214.161 – 10.167.214.166 | 10.167.214.167 |
| 214 | 10.167.214.168/29 | 10.167.214.169 – 10.167.214.174 | 10.167.214.175 |
| 215 | 10.167.214.176/29 | 10.167.214.177 – 10.167.214.182 | 10.167.214.183 |
| 216 | 10.167.214.184/29 | 10.167.214.185 – 10.167.214.190 | 10.167.214.191 |
| 217 | 10.167.214.192/29 | 10.167.214.193 – 10.167.214.198 | 10.167.214.199 |
| 218 | 10.167.214.200/29 | 10.167.214.201 – 10.167.214.206 | 10.167.214.207 |
| 219 | 10.167.214.208/29 | 10.167.214.209 – 10.167.214.214 | 10.167.214.215 |
| 220 | 10.167.214.216/29 | 10.167.214.217 – 10.167.214.222 | 10.167.214.223 |
| 221 | 10.167.214.224/29 | 10.167.214.225 – 10.167.214.230 | 10.167.214.231 |
| 222 | 10.167.214.232/29 | 10.167.214.233 – 10.167.214.238 | 10.167.214.239 |
| 223 | 10.167.214.240/29 | 10.167.214.241 – 10.167.214.246 | 10.167.214.247 |
| 224 | 10.167.214.248/29 | 10.167.214.249 – 10.167.214.254 | 10.167.214.255 |
| 225 | 10.167.215.0/29 | 10.167.215.1 – 10.167.215.6 | 10.167.215.7 |
| 226 | 10.167.215.8/29 | 10.167.215.9 – 10.167.215.14 | 10.167.215.15 |
| 227 | 10.167.215.16/29 | 10.167.215.17 – 10.167.215.22 | 10.167.215.23 |
| 228 | 10.167.215.24/29 | 10.167.215.25 – 10.167.215.30 | 10.167.215.31 |
| 229 | 10.167.215.32/29 | 10.167.215.33 – 10.167.215.38 | 10.167.215.39 |
| 230 | 10.167.215.40/29 | 10.167.215.41 – 10.167.215.46 | 10.167.215.47 |
| 231 | 10.167.215.48/29 | 10.167.215.49 – 10.167.215.54 | 10.167.215.55 |
| 232 | 10.167.215.56/29 | 10.167.215.57 – 10.167.215.62 | 10.167.215.63 |
| 233 | 10.167.215.64/29 | 10.167.215.65 – 10.167.215.70 | 10.167.215.71 |
| 234 | 10.167.215.72/29 | 10.167.215.73 – 10.167.215.78 | 10.167.215.79 |
| 235 | 10.167.215.80/29 | 10.167.215.81 – 10.167.215.86 | 10.167.215.87 |
| 236 | 10.167.215.88/29 | 10.167.215.89 – 10.167.215.94 | 10.167.215.95 |
| 237 | 10.167.215.96/29 | 10.167.215.97 – 10.167.215.102 | 10.167.215.103 |
| 238 | 10.167.215.104/29 | 10.167.215.105 – 10.167.215.110 | 10.167.215.111 |
| 239 | 10.167.215.112/29 | 10.167.215.113 – 10.167.215.118 | 10.167.215.119 |
| 240 | 10.167.215.120/29 | 10.167.215.121 – 10.167.215.126 | 10.167.215.127 |
| 241 | 10.167.215.128/29 | 10.167.215.129 – 10.167.215.134 | 10.167.215.135 |
| 242 | 10.167.215.136/29 | 10.167.215.137 – 10.167.215.142 | 10.167.215.143 |
| 243 | 10.167.215.144/29 | 10.167.215.145 – 10.167.215.150 | 10.167.215.151 |
| 244 | 10.167.215.152/29 | 10.167.215.153 – 10.167.215.158 | 10.167.215.159 |
| 245 | 10.167.215.160/29 | 10.167.215.161 – 10.167.215.166 | 10.167.215.167 |
| 246 | 10.167.215.168/29 | 10.167.215.169 – 10.167.215.174 | 10.167.215.175 |
| 247 | 10.167.215.176/29 | 10.167.215.177 – 10.167.215.182 | 10.167.215.183 |
| 248 | 10.167.215.184/29 | 10.167.215.185 – 10.167.215.190 | 10.167.215.191 |
| 249 | 10.167.215.192/29 | 10.167.215.193 – 10.167.215.198 | 10.167.215.199 |
| 250 | 10.167.215.200/29 | 10.167.215.201 – 10.167.215.206 | 10.167.215.207 |
| 251 | 10.167.215.208/29 | 10.167.215.209 – 10.167.215.214 | 10.167.215.215 |
| 252 | 10.167.215.216/29 | 10.167.215.217 – 10.167.215.222 | 10.167.215.223 |
| 253 | 10.167.215.224/29 | 10.167.215.225 – 10.167.215.230 | 10.167.215.231 |
| 254 | 10.167.215.232/29 | 10.167.215.233 – 10.167.215.238 | 10.167.215.239 |
| 255 | 10.167.215.240/29 | 10.167.215.241 – 10.167.215.246 | 10.167.215.247 |
| 256 | 10.167.215.248/29 | 10.167.215.249 – 10.167.215.254 | 10.167.215.255 |
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 /21 |
|---|---|---|---|---|
| /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 | - |
| /21 | 255.255.248.0 | 2,048 | 2,046 | 1 |
| /22 | 255.255.252.0 | 1,024 | 1,022 | 2 split → |
| /23 | 255.255.254.0 | 512 | 510 | 4 split → |
| /24 | 255.255.255.0 | 256 | 254 | 8 split → |
| /25 | 255.255.255.128 | 128 | 126 | 16 split → |
| /26 | 255.255.255.192 | 64 | 62 | 32 split → |
| /27 | 255.255.255.224 | 32 | 30 | 64 split → |
| /28 | 255.255.255.240 | 16 | 14 | 128 split → |
| /29 | 255.255.255.248 | 8 | 6 | 256 split → |
| /30 | 255.255.255.252 | 4 | 2 | 512 split → |
| /31 | 255.255.255.254 | 2 | 2 | 1,024 split → |
| /32 | 255.255.255.255 | 1 | 1 | 2,048 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.