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)10.167.122.0/23
network10.167.122.0/23
broadcast10.167.123.255
first host10.167.122.1
last host10.167.123.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.167.122.0/23
address00001010.10100111.01111010.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.10100111.01111010.00000000
broadcast00001010.10100111.01111011.11111111
green = network part, grey = host part
hex0x0aa77a00
decimal178747904
reverse dns0.122.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:7a00
/23 split into /31 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.167.122.0/31 | 10.167.122.0 – 10.167.122.1 | 10.167.122.1 |
| 2 | 10.167.122.2/31 | 10.167.122.2 – 10.167.122.3 | 10.167.122.3 |
| 3 | 10.167.122.4/31 | 10.167.122.4 – 10.167.122.5 | 10.167.122.5 |
| 4 | 10.167.122.6/31 | 10.167.122.6 – 10.167.122.7 | 10.167.122.7 |
| 5 | 10.167.122.8/31 | 10.167.122.8 – 10.167.122.9 | 10.167.122.9 |
| 6 | 10.167.122.10/31 | 10.167.122.10 – 10.167.122.11 | 10.167.122.11 |
| 7 | 10.167.122.12/31 | 10.167.122.12 – 10.167.122.13 | 10.167.122.13 |
| 8 | 10.167.122.14/31 | 10.167.122.14 – 10.167.122.15 | 10.167.122.15 |
| 9 | 10.167.122.16/31 | 10.167.122.16 – 10.167.122.17 | 10.167.122.17 |
| 10 | 10.167.122.18/31 | 10.167.122.18 – 10.167.122.19 | 10.167.122.19 |
| 11 | 10.167.122.20/31 | 10.167.122.20 – 10.167.122.21 | 10.167.122.21 |
| 12 | 10.167.122.22/31 | 10.167.122.22 – 10.167.122.23 | 10.167.122.23 |
| 13 | 10.167.122.24/31 | 10.167.122.24 – 10.167.122.25 | 10.167.122.25 |
| 14 | 10.167.122.26/31 | 10.167.122.26 – 10.167.122.27 | 10.167.122.27 |
| 15 | 10.167.122.28/31 | 10.167.122.28 – 10.167.122.29 | 10.167.122.29 |
| 16 | 10.167.122.30/31 | 10.167.122.30 – 10.167.122.31 | 10.167.122.31 |
| 17 | 10.167.122.32/31 | 10.167.122.32 – 10.167.122.33 | 10.167.122.33 |
| 18 | 10.167.122.34/31 | 10.167.122.34 – 10.167.122.35 | 10.167.122.35 |
| 19 | 10.167.122.36/31 | 10.167.122.36 – 10.167.122.37 | 10.167.122.37 |
| 20 | 10.167.122.38/31 | 10.167.122.38 – 10.167.122.39 | 10.167.122.39 |
| 21 | 10.167.122.40/31 | 10.167.122.40 – 10.167.122.41 | 10.167.122.41 |
| 22 | 10.167.122.42/31 | 10.167.122.42 – 10.167.122.43 | 10.167.122.43 |
| 23 | 10.167.122.44/31 | 10.167.122.44 – 10.167.122.45 | 10.167.122.45 |
| 24 | 10.167.122.46/31 | 10.167.122.46 – 10.167.122.47 | 10.167.122.47 |
| 25 | 10.167.122.48/31 | 10.167.122.48 – 10.167.122.49 | 10.167.122.49 |
| 26 | 10.167.122.50/31 | 10.167.122.50 – 10.167.122.51 | 10.167.122.51 |
| 27 | 10.167.122.52/31 | 10.167.122.52 – 10.167.122.53 | 10.167.122.53 |
| 28 | 10.167.122.54/31 | 10.167.122.54 – 10.167.122.55 | 10.167.122.55 |
| 29 | 10.167.122.56/31 | 10.167.122.56 – 10.167.122.57 | 10.167.122.57 |
| 30 | 10.167.122.58/31 | 10.167.122.58 – 10.167.122.59 | 10.167.122.59 |
| 31 | 10.167.122.60/31 | 10.167.122.60 – 10.167.122.61 | 10.167.122.61 |
| 32 | 10.167.122.62/31 | 10.167.122.62 – 10.167.122.63 | 10.167.122.63 |
| 33 | 10.167.122.64/31 | 10.167.122.64 – 10.167.122.65 | 10.167.122.65 |
| 34 | 10.167.122.66/31 | 10.167.122.66 – 10.167.122.67 | 10.167.122.67 |
| 35 | 10.167.122.68/31 | 10.167.122.68 – 10.167.122.69 | 10.167.122.69 |
| 36 | 10.167.122.70/31 | 10.167.122.70 – 10.167.122.71 | 10.167.122.71 |
| 37 | 10.167.122.72/31 | 10.167.122.72 – 10.167.122.73 | 10.167.122.73 |
| 38 | 10.167.122.74/31 | 10.167.122.74 – 10.167.122.75 | 10.167.122.75 |
| 39 | 10.167.122.76/31 | 10.167.122.76 – 10.167.122.77 | 10.167.122.77 |
| 40 | 10.167.122.78/31 | 10.167.122.78 – 10.167.122.79 | 10.167.122.79 |
| 41 | 10.167.122.80/31 | 10.167.122.80 – 10.167.122.81 | 10.167.122.81 |
| 42 | 10.167.122.82/31 | 10.167.122.82 – 10.167.122.83 | 10.167.122.83 |
| 43 | 10.167.122.84/31 | 10.167.122.84 – 10.167.122.85 | 10.167.122.85 |
| 44 | 10.167.122.86/31 | 10.167.122.86 – 10.167.122.87 | 10.167.122.87 |
| 45 | 10.167.122.88/31 | 10.167.122.88 – 10.167.122.89 | 10.167.122.89 |
| 46 | 10.167.122.90/31 | 10.167.122.90 – 10.167.122.91 | 10.167.122.91 |
| 47 | 10.167.122.92/31 | 10.167.122.92 – 10.167.122.93 | 10.167.122.93 |
| 48 | 10.167.122.94/31 | 10.167.122.94 – 10.167.122.95 | 10.167.122.95 |
| 49 | 10.167.122.96/31 | 10.167.122.96 – 10.167.122.97 | 10.167.122.97 |
| 50 | 10.167.122.98/31 | 10.167.122.98 – 10.167.122.99 | 10.167.122.99 |
| 51 | 10.167.122.100/31 | 10.167.122.100 – 10.167.122.101 | 10.167.122.101 |
| 52 | 10.167.122.102/31 | 10.167.122.102 – 10.167.122.103 | 10.167.122.103 |
| 53 | 10.167.122.104/31 | 10.167.122.104 – 10.167.122.105 | 10.167.122.105 |
| 54 | 10.167.122.106/31 | 10.167.122.106 – 10.167.122.107 | 10.167.122.107 |
| 55 | 10.167.122.108/31 | 10.167.122.108 – 10.167.122.109 | 10.167.122.109 |
| 56 | 10.167.122.110/31 | 10.167.122.110 – 10.167.122.111 | 10.167.122.111 |
| 57 | 10.167.122.112/31 | 10.167.122.112 – 10.167.122.113 | 10.167.122.113 |
| 58 | 10.167.122.114/31 | 10.167.122.114 – 10.167.122.115 | 10.167.122.115 |
| 59 | 10.167.122.116/31 | 10.167.122.116 – 10.167.122.117 | 10.167.122.117 |
| 60 | 10.167.122.118/31 | 10.167.122.118 – 10.167.122.119 | 10.167.122.119 |
| 61 | 10.167.122.120/31 | 10.167.122.120 – 10.167.122.121 | 10.167.122.121 |
| 62 | 10.167.122.122/31 | 10.167.122.122 – 10.167.122.123 | 10.167.122.123 |
| 63 | 10.167.122.124/31 | 10.167.122.124 – 10.167.122.125 | 10.167.122.125 |
| 64 | 10.167.122.126/31 | 10.167.122.126 – 10.167.122.127 | 10.167.122.127 |
| 65 | 10.167.122.128/31 | 10.167.122.128 – 10.167.122.129 | 10.167.122.129 |
| 66 | 10.167.122.130/31 | 10.167.122.130 – 10.167.122.131 | 10.167.122.131 |
| 67 | 10.167.122.132/31 | 10.167.122.132 – 10.167.122.133 | 10.167.122.133 |
| 68 | 10.167.122.134/31 | 10.167.122.134 – 10.167.122.135 | 10.167.122.135 |
| 69 | 10.167.122.136/31 | 10.167.122.136 – 10.167.122.137 | 10.167.122.137 |
| 70 | 10.167.122.138/31 | 10.167.122.138 – 10.167.122.139 | 10.167.122.139 |
| 71 | 10.167.122.140/31 | 10.167.122.140 – 10.167.122.141 | 10.167.122.141 |
| 72 | 10.167.122.142/31 | 10.167.122.142 – 10.167.122.143 | 10.167.122.143 |
| 73 | 10.167.122.144/31 | 10.167.122.144 – 10.167.122.145 | 10.167.122.145 |
| 74 | 10.167.122.146/31 | 10.167.122.146 – 10.167.122.147 | 10.167.122.147 |
| 75 | 10.167.122.148/31 | 10.167.122.148 – 10.167.122.149 | 10.167.122.149 |
| 76 | 10.167.122.150/31 | 10.167.122.150 – 10.167.122.151 | 10.167.122.151 |
| 77 | 10.167.122.152/31 | 10.167.122.152 – 10.167.122.153 | 10.167.122.153 |
| 78 | 10.167.122.154/31 | 10.167.122.154 – 10.167.122.155 | 10.167.122.155 |
| 79 | 10.167.122.156/31 | 10.167.122.156 – 10.167.122.157 | 10.167.122.157 |
| 80 | 10.167.122.158/31 | 10.167.122.158 – 10.167.122.159 | 10.167.122.159 |
| 81 | 10.167.122.160/31 | 10.167.122.160 – 10.167.122.161 | 10.167.122.161 |
| 82 | 10.167.122.162/31 | 10.167.122.162 – 10.167.122.163 | 10.167.122.163 |
| 83 | 10.167.122.164/31 | 10.167.122.164 – 10.167.122.165 | 10.167.122.165 |
| 84 | 10.167.122.166/31 | 10.167.122.166 – 10.167.122.167 | 10.167.122.167 |
| 85 | 10.167.122.168/31 | 10.167.122.168 – 10.167.122.169 | 10.167.122.169 |
| 86 | 10.167.122.170/31 | 10.167.122.170 – 10.167.122.171 | 10.167.122.171 |
| 87 | 10.167.122.172/31 | 10.167.122.172 – 10.167.122.173 | 10.167.122.173 |
| 88 | 10.167.122.174/31 | 10.167.122.174 – 10.167.122.175 | 10.167.122.175 |
| 89 | 10.167.122.176/31 | 10.167.122.176 – 10.167.122.177 | 10.167.122.177 |
| 90 | 10.167.122.178/31 | 10.167.122.178 – 10.167.122.179 | 10.167.122.179 |
| 91 | 10.167.122.180/31 | 10.167.122.180 – 10.167.122.181 | 10.167.122.181 |
| 92 | 10.167.122.182/31 | 10.167.122.182 – 10.167.122.183 | 10.167.122.183 |
| 93 | 10.167.122.184/31 | 10.167.122.184 – 10.167.122.185 | 10.167.122.185 |
| 94 | 10.167.122.186/31 | 10.167.122.186 – 10.167.122.187 | 10.167.122.187 |
| 95 | 10.167.122.188/31 | 10.167.122.188 – 10.167.122.189 | 10.167.122.189 |
| 96 | 10.167.122.190/31 | 10.167.122.190 – 10.167.122.191 | 10.167.122.191 |
| 97 | 10.167.122.192/31 | 10.167.122.192 – 10.167.122.193 | 10.167.122.193 |
| 98 | 10.167.122.194/31 | 10.167.122.194 – 10.167.122.195 | 10.167.122.195 |
| 99 | 10.167.122.196/31 | 10.167.122.196 – 10.167.122.197 | 10.167.122.197 |
| 100 | 10.167.122.198/31 | 10.167.122.198 – 10.167.122.199 | 10.167.122.199 |
| 101 | 10.167.122.200/31 | 10.167.122.200 – 10.167.122.201 | 10.167.122.201 |
| 102 | 10.167.122.202/31 | 10.167.122.202 – 10.167.122.203 | 10.167.122.203 |
| 103 | 10.167.122.204/31 | 10.167.122.204 – 10.167.122.205 | 10.167.122.205 |
| 104 | 10.167.122.206/31 | 10.167.122.206 – 10.167.122.207 | 10.167.122.207 |
| 105 | 10.167.122.208/31 | 10.167.122.208 – 10.167.122.209 | 10.167.122.209 |
| 106 | 10.167.122.210/31 | 10.167.122.210 – 10.167.122.211 | 10.167.122.211 |
| 107 | 10.167.122.212/31 | 10.167.122.212 – 10.167.122.213 | 10.167.122.213 |
| 108 | 10.167.122.214/31 | 10.167.122.214 – 10.167.122.215 | 10.167.122.215 |
| 109 | 10.167.122.216/31 | 10.167.122.216 – 10.167.122.217 | 10.167.122.217 |
| 110 | 10.167.122.218/31 | 10.167.122.218 – 10.167.122.219 | 10.167.122.219 |
| 111 | 10.167.122.220/31 | 10.167.122.220 – 10.167.122.221 | 10.167.122.221 |
| 112 | 10.167.122.222/31 | 10.167.122.222 – 10.167.122.223 | 10.167.122.223 |
| 113 | 10.167.122.224/31 | 10.167.122.224 – 10.167.122.225 | 10.167.122.225 |
| 114 | 10.167.122.226/31 | 10.167.122.226 – 10.167.122.227 | 10.167.122.227 |
| 115 | 10.167.122.228/31 | 10.167.122.228 – 10.167.122.229 | 10.167.122.229 |
| 116 | 10.167.122.230/31 | 10.167.122.230 – 10.167.122.231 | 10.167.122.231 |
| 117 | 10.167.122.232/31 | 10.167.122.232 – 10.167.122.233 | 10.167.122.233 |
| 118 | 10.167.122.234/31 | 10.167.122.234 – 10.167.122.235 | 10.167.122.235 |
| 119 | 10.167.122.236/31 | 10.167.122.236 – 10.167.122.237 | 10.167.122.237 |
| 120 | 10.167.122.238/31 | 10.167.122.238 – 10.167.122.239 | 10.167.122.239 |
| 121 | 10.167.122.240/31 | 10.167.122.240 – 10.167.122.241 | 10.167.122.241 |
| 122 | 10.167.122.242/31 | 10.167.122.242 – 10.167.122.243 | 10.167.122.243 |
| 123 | 10.167.122.244/31 | 10.167.122.244 – 10.167.122.245 | 10.167.122.245 |
| 124 | 10.167.122.246/31 | 10.167.122.246 – 10.167.122.247 | 10.167.122.247 |
| 125 | 10.167.122.248/31 | 10.167.122.248 – 10.167.122.249 | 10.167.122.249 |
| 126 | 10.167.122.250/31 | 10.167.122.250 – 10.167.122.251 | 10.167.122.251 |
| 127 | 10.167.122.252/31 | 10.167.122.252 – 10.167.122.253 | 10.167.122.253 |
| 128 | 10.167.122.254/31 | 10.167.122.254 – 10.167.122.255 | 10.167.122.255 |
| 129 | 10.167.123.0/31 | 10.167.123.0 – 10.167.123.1 | 10.167.123.1 |
| 130 | 10.167.123.2/31 | 10.167.123.2 – 10.167.123.3 | 10.167.123.3 |
| 131 | 10.167.123.4/31 | 10.167.123.4 – 10.167.123.5 | 10.167.123.5 |
| 132 | 10.167.123.6/31 | 10.167.123.6 – 10.167.123.7 | 10.167.123.7 |
| 133 | 10.167.123.8/31 | 10.167.123.8 – 10.167.123.9 | 10.167.123.9 |
| 134 | 10.167.123.10/31 | 10.167.123.10 – 10.167.123.11 | 10.167.123.11 |
| 135 | 10.167.123.12/31 | 10.167.123.12 – 10.167.123.13 | 10.167.123.13 |
| 136 | 10.167.123.14/31 | 10.167.123.14 – 10.167.123.15 | 10.167.123.15 |
| 137 | 10.167.123.16/31 | 10.167.123.16 – 10.167.123.17 | 10.167.123.17 |
| 138 | 10.167.123.18/31 | 10.167.123.18 – 10.167.123.19 | 10.167.123.19 |
| 139 | 10.167.123.20/31 | 10.167.123.20 – 10.167.123.21 | 10.167.123.21 |
| 140 | 10.167.123.22/31 | 10.167.123.22 – 10.167.123.23 | 10.167.123.23 |
| 141 | 10.167.123.24/31 | 10.167.123.24 – 10.167.123.25 | 10.167.123.25 |
| 142 | 10.167.123.26/31 | 10.167.123.26 – 10.167.123.27 | 10.167.123.27 |
| 143 | 10.167.123.28/31 | 10.167.123.28 – 10.167.123.29 | 10.167.123.29 |
| 144 | 10.167.123.30/31 | 10.167.123.30 – 10.167.123.31 | 10.167.123.31 |
| 145 | 10.167.123.32/31 | 10.167.123.32 – 10.167.123.33 | 10.167.123.33 |
| 146 | 10.167.123.34/31 | 10.167.123.34 – 10.167.123.35 | 10.167.123.35 |
| 147 | 10.167.123.36/31 | 10.167.123.36 – 10.167.123.37 | 10.167.123.37 |
| 148 | 10.167.123.38/31 | 10.167.123.38 – 10.167.123.39 | 10.167.123.39 |
| 149 | 10.167.123.40/31 | 10.167.123.40 – 10.167.123.41 | 10.167.123.41 |
| 150 | 10.167.123.42/31 | 10.167.123.42 – 10.167.123.43 | 10.167.123.43 |
| 151 | 10.167.123.44/31 | 10.167.123.44 – 10.167.123.45 | 10.167.123.45 |
| 152 | 10.167.123.46/31 | 10.167.123.46 – 10.167.123.47 | 10.167.123.47 |
| 153 | 10.167.123.48/31 | 10.167.123.48 – 10.167.123.49 | 10.167.123.49 |
| 154 | 10.167.123.50/31 | 10.167.123.50 – 10.167.123.51 | 10.167.123.51 |
| 155 | 10.167.123.52/31 | 10.167.123.52 – 10.167.123.53 | 10.167.123.53 |
| 156 | 10.167.123.54/31 | 10.167.123.54 – 10.167.123.55 | 10.167.123.55 |
| 157 | 10.167.123.56/31 | 10.167.123.56 – 10.167.123.57 | 10.167.123.57 |
| 158 | 10.167.123.58/31 | 10.167.123.58 – 10.167.123.59 | 10.167.123.59 |
| 159 | 10.167.123.60/31 | 10.167.123.60 – 10.167.123.61 | 10.167.123.61 |
| 160 | 10.167.123.62/31 | 10.167.123.62 – 10.167.123.63 | 10.167.123.63 |
| 161 | 10.167.123.64/31 | 10.167.123.64 – 10.167.123.65 | 10.167.123.65 |
| 162 | 10.167.123.66/31 | 10.167.123.66 – 10.167.123.67 | 10.167.123.67 |
| 163 | 10.167.123.68/31 | 10.167.123.68 – 10.167.123.69 | 10.167.123.69 |
| 164 | 10.167.123.70/31 | 10.167.123.70 – 10.167.123.71 | 10.167.123.71 |
| 165 | 10.167.123.72/31 | 10.167.123.72 – 10.167.123.73 | 10.167.123.73 |
| 166 | 10.167.123.74/31 | 10.167.123.74 – 10.167.123.75 | 10.167.123.75 |
| 167 | 10.167.123.76/31 | 10.167.123.76 – 10.167.123.77 | 10.167.123.77 |
| 168 | 10.167.123.78/31 | 10.167.123.78 – 10.167.123.79 | 10.167.123.79 |
| 169 | 10.167.123.80/31 | 10.167.123.80 – 10.167.123.81 | 10.167.123.81 |
| 170 | 10.167.123.82/31 | 10.167.123.82 – 10.167.123.83 | 10.167.123.83 |
| 171 | 10.167.123.84/31 | 10.167.123.84 – 10.167.123.85 | 10.167.123.85 |
| 172 | 10.167.123.86/31 | 10.167.123.86 – 10.167.123.87 | 10.167.123.87 |
| 173 | 10.167.123.88/31 | 10.167.123.88 – 10.167.123.89 | 10.167.123.89 |
| 174 | 10.167.123.90/31 | 10.167.123.90 – 10.167.123.91 | 10.167.123.91 |
| 175 | 10.167.123.92/31 | 10.167.123.92 – 10.167.123.93 | 10.167.123.93 |
| 176 | 10.167.123.94/31 | 10.167.123.94 – 10.167.123.95 | 10.167.123.95 |
| 177 | 10.167.123.96/31 | 10.167.123.96 – 10.167.123.97 | 10.167.123.97 |
| 178 | 10.167.123.98/31 | 10.167.123.98 – 10.167.123.99 | 10.167.123.99 |
| 179 | 10.167.123.100/31 | 10.167.123.100 – 10.167.123.101 | 10.167.123.101 |
| 180 | 10.167.123.102/31 | 10.167.123.102 – 10.167.123.103 | 10.167.123.103 |
| 181 | 10.167.123.104/31 | 10.167.123.104 – 10.167.123.105 | 10.167.123.105 |
| 182 | 10.167.123.106/31 | 10.167.123.106 – 10.167.123.107 | 10.167.123.107 |
| 183 | 10.167.123.108/31 | 10.167.123.108 – 10.167.123.109 | 10.167.123.109 |
| 184 | 10.167.123.110/31 | 10.167.123.110 – 10.167.123.111 | 10.167.123.111 |
| 185 | 10.167.123.112/31 | 10.167.123.112 – 10.167.123.113 | 10.167.123.113 |
| 186 | 10.167.123.114/31 | 10.167.123.114 – 10.167.123.115 | 10.167.123.115 |
| 187 | 10.167.123.116/31 | 10.167.123.116 – 10.167.123.117 | 10.167.123.117 |
| 188 | 10.167.123.118/31 | 10.167.123.118 – 10.167.123.119 | 10.167.123.119 |
| 189 | 10.167.123.120/31 | 10.167.123.120 – 10.167.123.121 | 10.167.123.121 |
| 190 | 10.167.123.122/31 | 10.167.123.122 – 10.167.123.123 | 10.167.123.123 |
| 191 | 10.167.123.124/31 | 10.167.123.124 – 10.167.123.125 | 10.167.123.125 |
| 192 | 10.167.123.126/31 | 10.167.123.126 – 10.167.123.127 | 10.167.123.127 |
| 193 | 10.167.123.128/31 | 10.167.123.128 – 10.167.123.129 | 10.167.123.129 |
| 194 | 10.167.123.130/31 | 10.167.123.130 – 10.167.123.131 | 10.167.123.131 |
| 195 | 10.167.123.132/31 | 10.167.123.132 – 10.167.123.133 | 10.167.123.133 |
| 196 | 10.167.123.134/31 | 10.167.123.134 – 10.167.123.135 | 10.167.123.135 |
| 197 | 10.167.123.136/31 | 10.167.123.136 – 10.167.123.137 | 10.167.123.137 |
| 198 | 10.167.123.138/31 | 10.167.123.138 – 10.167.123.139 | 10.167.123.139 |
| 199 | 10.167.123.140/31 | 10.167.123.140 – 10.167.123.141 | 10.167.123.141 |
| 200 | 10.167.123.142/31 | 10.167.123.142 – 10.167.123.143 | 10.167.123.143 |
| 201 | 10.167.123.144/31 | 10.167.123.144 – 10.167.123.145 | 10.167.123.145 |
| 202 | 10.167.123.146/31 | 10.167.123.146 – 10.167.123.147 | 10.167.123.147 |
| 203 | 10.167.123.148/31 | 10.167.123.148 – 10.167.123.149 | 10.167.123.149 |
| 204 | 10.167.123.150/31 | 10.167.123.150 – 10.167.123.151 | 10.167.123.151 |
| 205 | 10.167.123.152/31 | 10.167.123.152 – 10.167.123.153 | 10.167.123.153 |
| 206 | 10.167.123.154/31 | 10.167.123.154 – 10.167.123.155 | 10.167.123.155 |
| 207 | 10.167.123.156/31 | 10.167.123.156 – 10.167.123.157 | 10.167.123.157 |
| 208 | 10.167.123.158/31 | 10.167.123.158 – 10.167.123.159 | 10.167.123.159 |
| 209 | 10.167.123.160/31 | 10.167.123.160 – 10.167.123.161 | 10.167.123.161 |
| 210 | 10.167.123.162/31 | 10.167.123.162 – 10.167.123.163 | 10.167.123.163 |
| 211 | 10.167.123.164/31 | 10.167.123.164 – 10.167.123.165 | 10.167.123.165 |
| 212 | 10.167.123.166/31 | 10.167.123.166 – 10.167.123.167 | 10.167.123.167 |
| 213 | 10.167.123.168/31 | 10.167.123.168 – 10.167.123.169 | 10.167.123.169 |
| 214 | 10.167.123.170/31 | 10.167.123.170 – 10.167.123.171 | 10.167.123.171 |
| 215 | 10.167.123.172/31 | 10.167.123.172 – 10.167.123.173 | 10.167.123.173 |
| 216 | 10.167.123.174/31 | 10.167.123.174 – 10.167.123.175 | 10.167.123.175 |
| 217 | 10.167.123.176/31 | 10.167.123.176 – 10.167.123.177 | 10.167.123.177 |
| 218 | 10.167.123.178/31 | 10.167.123.178 – 10.167.123.179 | 10.167.123.179 |
| 219 | 10.167.123.180/31 | 10.167.123.180 – 10.167.123.181 | 10.167.123.181 |
| 220 | 10.167.123.182/31 | 10.167.123.182 – 10.167.123.183 | 10.167.123.183 |
| 221 | 10.167.123.184/31 | 10.167.123.184 – 10.167.123.185 | 10.167.123.185 |
| 222 | 10.167.123.186/31 | 10.167.123.186 – 10.167.123.187 | 10.167.123.187 |
| 223 | 10.167.123.188/31 | 10.167.123.188 – 10.167.123.189 | 10.167.123.189 |
| 224 | 10.167.123.190/31 | 10.167.123.190 – 10.167.123.191 | 10.167.123.191 |
| 225 | 10.167.123.192/31 | 10.167.123.192 – 10.167.123.193 | 10.167.123.193 |
| 226 | 10.167.123.194/31 | 10.167.123.194 – 10.167.123.195 | 10.167.123.195 |
| 227 | 10.167.123.196/31 | 10.167.123.196 – 10.167.123.197 | 10.167.123.197 |
| 228 | 10.167.123.198/31 | 10.167.123.198 – 10.167.123.199 | 10.167.123.199 |
| 229 | 10.167.123.200/31 | 10.167.123.200 – 10.167.123.201 | 10.167.123.201 |
| 230 | 10.167.123.202/31 | 10.167.123.202 – 10.167.123.203 | 10.167.123.203 |
| 231 | 10.167.123.204/31 | 10.167.123.204 – 10.167.123.205 | 10.167.123.205 |
| 232 | 10.167.123.206/31 | 10.167.123.206 – 10.167.123.207 | 10.167.123.207 |
| 233 | 10.167.123.208/31 | 10.167.123.208 – 10.167.123.209 | 10.167.123.209 |
| 234 | 10.167.123.210/31 | 10.167.123.210 – 10.167.123.211 | 10.167.123.211 |
| 235 | 10.167.123.212/31 | 10.167.123.212 – 10.167.123.213 | 10.167.123.213 |
| 236 | 10.167.123.214/31 | 10.167.123.214 – 10.167.123.215 | 10.167.123.215 |
| 237 | 10.167.123.216/31 | 10.167.123.216 – 10.167.123.217 | 10.167.123.217 |
| 238 | 10.167.123.218/31 | 10.167.123.218 – 10.167.123.219 | 10.167.123.219 |
| 239 | 10.167.123.220/31 | 10.167.123.220 – 10.167.123.221 | 10.167.123.221 |
| 240 | 10.167.123.222/31 | 10.167.123.222 – 10.167.123.223 | 10.167.123.223 |
| 241 | 10.167.123.224/31 | 10.167.123.224 – 10.167.123.225 | 10.167.123.225 |
| 242 | 10.167.123.226/31 | 10.167.123.226 – 10.167.123.227 | 10.167.123.227 |
| 243 | 10.167.123.228/31 | 10.167.123.228 – 10.167.123.229 | 10.167.123.229 |
| 244 | 10.167.123.230/31 | 10.167.123.230 – 10.167.123.231 | 10.167.123.231 |
| 245 | 10.167.123.232/31 | 10.167.123.232 – 10.167.123.233 | 10.167.123.233 |
| 246 | 10.167.123.234/31 | 10.167.123.234 – 10.167.123.235 | 10.167.123.235 |
| 247 | 10.167.123.236/31 | 10.167.123.236 – 10.167.123.237 | 10.167.123.237 |
| 248 | 10.167.123.238/31 | 10.167.123.238 – 10.167.123.239 | 10.167.123.239 |
| 249 | 10.167.123.240/31 | 10.167.123.240 – 10.167.123.241 | 10.167.123.241 |
| 250 | 10.167.123.242/31 | 10.167.123.242 – 10.167.123.243 | 10.167.123.243 |
| 251 | 10.167.123.244/31 | 10.167.123.244 – 10.167.123.245 | 10.167.123.245 |
| 252 | 10.167.123.246/31 | 10.167.123.246 – 10.167.123.247 | 10.167.123.247 |
| 253 | 10.167.123.248/31 | 10.167.123.248 – 10.167.123.249 | 10.167.123.249 |
| 254 | 10.167.123.250/31 | 10.167.123.250 – 10.167.123.251 | 10.167.123.251 |
| 255 | 10.167.123.252/31 | 10.167.123.252 – 10.167.123.253 | 10.167.123.253 |
| 256 | 10.167.123.254/31 | 10.167.123.254 – 10.167.123.255 | 10.167.123.255 |
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 /23 |
|---|---|---|---|---|
| /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 | - |
| /22 | 255.255.252.0 | 1,024 | 1,022 | - |
| /23 | 255.255.254.0 | 512 | 510 | 1 |
| /24 | 255.255.255.0 | 256 | 254 | 2 split → |
| /25 | 255.255.255.128 | 128 | 126 | 4 split → |
| /26 | 255.255.255.192 | 64 | 62 | 8 split → |
| /27 | 255.255.255.224 | 32 | 30 | 16 split → |
| /28 | 255.255.255.240 | 16 | 14 | 32 split → |
| /29 | 255.255.255.248 | 8 | 6 | 64 split → |
| /30 | 255.255.255.252 | 4 | 2 | 128 split → |
| /31 | 255.255.255.254 | 2 | 2 | 256 split → |
| /32 | 255.255.255.255 | 1 | 1 | 512 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.