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)10.167.138.0/23
network10.167.138.0/23
broadcast10.167.139.255
first host10.167.138.1
last host10.167.139.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.167.138.0/23
address00001010.10100111.10001010.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.10100111.10001010.00000000
broadcast00001010.10100111.10001011.11111111
green = network part, grey = host part
hex0x0aa78a00
decimal178752000
reverse dns0.138.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:8a00
/23 split into /31 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.167.138.0/31 | 10.167.138.0 – 10.167.138.1 | 10.167.138.1 |
| 2 | 10.167.138.2/31 | 10.167.138.2 – 10.167.138.3 | 10.167.138.3 |
| 3 | 10.167.138.4/31 | 10.167.138.4 – 10.167.138.5 | 10.167.138.5 |
| 4 | 10.167.138.6/31 | 10.167.138.6 – 10.167.138.7 | 10.167.138.7 |
| 5 | 10.167.138.8/31 | 10.167.138.8 – 10.167.138.9 | 10.167.138.9 |
| 6 | 10.167.138.10/31 | 10.167.138.10 – 10.167.138.11 | 10.167.138.11 |
| 7 | 10.167.138.12/31 | 10.167.138.12 – 10.167.138.13 | 10.167.138.13 |
| 8 | 10.167.138.14/31 | 10.167.138.14 – 10.167.138.15 | 10.167.138.15 |
| 9 | 10.167.138.16/31 | 10.167.138.16 – 10.167.138.17 | 10.167.138.17 |
| 10 | 10.167.138.18/31 | 10.167.138.18 – 10.167.138.19 | 10.167.138.19 |
| 11 | 10.167.138.20/31 | 10.167.138.20 – 10.167.138.21 | 10.167.138.21 |
| 12 | 10.167.138.22/31 | 10.167.138.22 – 10.167.138.23 | 10.167.138.23 |
| 13 | 10.167.138.24/31 | 10.167.138.24 – 10.167.138.25 | 10.167.138.25 |
| 14 | 10.167.138.26/31 | 10.167.138.26 – 10.167.138.27 | 10.167.138.27 |
| 15 | 10.167.138.28/31 | 10.167.138.28 – 10.167.138.29 | 10.167.138.29 |
| 16 | 10.167.138.30/31 | 10.167.138.30 – 10.167.138.31 | 10.167.138.31 |
| 17 | 10.167.138.32/31 | 10.167.138.32 – 10.167.138.33 | 10.167.138.33 |
| 18 | 10.167.138.34/31 | 10.167.138.34 – 10.167.138.35 | 10.167.138.35 |
| 19 | 10.167.138.36/31 | 10.167.138.36 – 10.167.138.37 | 10.167.138.37 |
| 20 | 10.167.138.38/31 | 10.167.138.38 – 10.167.138.39 | 10.167.138.39 |
| 21 | 10.167.138.40/31 | 10.167.138.40 – 10.167.138.41 | 10.167.138.41 |
| 22 | 10.167.138.42/31 | 10.167.138.42 – 10.167.138.43 | 10.167.138.43 |
| 23 | 10.167.138.44/31 | 10.167.138.44 – 10.167.138.45 | 10.167.138.45 |
| 24 | 10.167.138.46/31 | 10.167.138.46 – 10.167.138.47 | 10.167.138.47 |
| 25 | 10.167.138.48/31 | 10.167.138.48 – 10.167.138.49 | 10.167.138.49 |
| 26 | 10.167.138.50/31 | 10.167.138.50 – 10.167.138.51 | 10.167.138.51 |
| 27 | 10.167.138.52/31 | 10.167.138.52 – 10.167.138.53 | 10.167.138.53 |
| 28 | 10.167.138.54/31 | 10.167.138.54 – 10.167.138.55 | 10.167.138.55 |
| 29 | 10.167.138.56/31 | 10.167.138.56 – 10.167.138.57 | 10.167.138.57 |
| 30 | 10.167.138.58/31 | 10.167.138.58 – 10.167.138.59 | 10.167.138.59 |
| 31 | 10.167.138.60/31 | 10.167.138.60 – 10.167.138.61 | 10.167.138.61 |
| 32 | 10.167.138.62/31 | 10.167.138.62 – 10.167.138.63 | 10.167.138.63 |
| 33 | 10.167.138.64/31 | 10.167.138.64 – 10.167.138.65 | 10.167.138.65 |
| 34 | 10.167.138.66/31 | 10.167.138.66 – 10.167.138.67 | 10.167.138.67 |
| 35 | 10.167.138.68/31 | 10.167.138.68 – 10.167.138.69 | 10.167.138.69 |
| 36 | 10.167.138.70/31 | 10.167.138.70 – 10.167.138.71 | 10.167.138.71 |
| 37 | 10.167.138.72/31 | 10.167.138.72 – 10.167.138.73 | 10.167.138.73 |
| 38 | 10.167.138.74/31 | 10.167.138.74 – 10.167.138.75 | 10.167.138.75 |
| 39 | 10.167.138.76/31 | 10.167.138.76 – 10.167.138.77 | 10.167.138.77 |
| 40 | 10.167.138.78/31 | 10.167.138.78 – 10.167.138.79 | 10.167.138.79 |
| 41 | 10.167.138.80/31 | 10.167.138.80 – 10.167.138.81 | 10.167.138.81 |
| 42 | 10.167.138.82/31 | 10.167.138.82 – 10.167.138.83 | 10.167.138.83 |
| 43 | 10.167.138.84/31 | 10.167.138.84 – 10.167.138.85 | 10.167.138.85 |
| 44 | 10.167.138.86/31 | 10.167.138.86 – 10.167.138.87 | 10.167.138.87 |
| 45 | 10.167.138.88/31 | 10.167.138.88 – 10.167.138.89 | 10.167.138.89 |
| 46 | 10.167.138.90/31 | 10.167.138.90 – 10.167.138.91 | 10.167.138.91 |
| 47 | 10.167.138.92/31 | 10.167.138.92 – 10.167.138.93 | 10.167.138.93 |
| 48 | 10.167.138.94/31 | 10.167.138.94 – 10.167.138.95 | 10.167.138.95 |
| 49 | 10.167.138.96/31 | 10.167.138.96 – 10.167.138.97 | 10.167.138.97 |
| 50 | 10.167.138.98/31 | 10.167.138.98 – 10.167.138.99 | 10.167.138.99 |
| 51 | 10.167.138.100/31 | 10.167.138.100 – 10.167.138.101 | 10.167.138.101 |
| 52 | 10.167.138.102/31 | 10.167.138.102 – 10.167.138.103 | 10.167.138.103 |
| 53 | 10.167.138.104/31 | 10.167.138.104 – 10.167.138.105 | 10.167.138.105 |
| 54 | 10.167.138.106/31 | 10.167.138.106 – 10.167.138.107 | 10.167.138.107 |
| 55 | 10.167.138.108/31 | 10.167.138.108 – 10.167.138.109 | 10.167.138.109 |
| 56 | 10.167.138.110/31 | 10.167.138.110 – 10.167.138.111 | 10.167.138.111 |
| 57 | 10.167.138.112/31 | 10.167.138.112 – 10.167.138.113 | 10.167.138.113 |
| 58 | 10.167.138.114/31 | 10.167.138.114 – 10.167.138.115 | 10.167.138.115 |
| 59 | 10.167.138.116/31 | 10.167.138.116 – 10.167.138.117 | 10.167.138.117 |
| 60 | 10.167.138.118/31 | 10.167.138.118 – 10.167.138.119 | 10.167.138.119 |
| 61 | 10.167.138.120/31 | 10.167.138.120 – 10.167.138.121 | 10.167.138.121 |
| 62 | 10.167.138.122/31 | 10.167.138.122 – 10.167.138.123 | 10.167.138.123 |
| 63 | 10.167.138.124/31 | 10.167.138.124 – 10.167.138.125 | 10.167.138.125 |
| 64 | 10.167.138.126/31 | 10.167.138.126 – 10.167.138.127 | 10.167.138.127 |
| 65 | 10.167.138.128/31 | 10.167.138.128 – 10.167.138.129 | 10.167.138.129 |
| 66 | 10.167.138.130/31 | 10.167.138.130 – 10.167.138.131 | 10.167.138.131 |
| 67 | 10.167.138.132/31 | 10.167.138.132 – 10.167.138.133 | 10.167.138.133 |
| 68 | 10.167.138.134/31 | 10.167.138.134 – 10.167.138.135 | 10.167.138.135 |
| 69 | 10.167.138.136/31 | 10.167.138.136 – 10.167.138.137 | 10.167.138.137 |
| 70 | 10.167.138.138/31 | 10.167.138.138 – 10.167.138.139 | 10.167.138.139 |
| 71 | 10.167.138.140/31 | 10.167.138.140 – 10.167.138.141 | 10.167.138.141 |
| 72 | 10.167.138.142/31 | 10.167.138.142 – 10.167.138.143 | 10.167.138.143 |
| 73 | 10.167.138.144/31 | 10.167.138.144 – 10.167.138.145 | 10.167.138.145 |
| 74 | 10.167.138.146/31 | 10.167.138.146 – 10.167.138.147 | 10.167.138.147 |
| 75 | 10.167.138.148/31 | 10.167.138.148 – 10.167.138.149 | 10.167.138.149 |
| 76 | 10.167.138.150/31 | 10.167.138.150 – 10.167.138.151 | 10.167.138.151 |
| 77 | 10.167.138.152/31 | 10.167.138.152 – 10.167.138.153 | 10.167.138.153 |
| 78 | 10.167.138.154/31 | 10.167.138.154 – 10.167.138.155 | 10.167.138.155 |
| 79 | 10.167.138.156/31 | 10.167.138.156 – 10.167.138.157 | 10.167.138.157 |
| 80 | 10.167.138.158/31 | 10.167.138.158 – 10.167.138.159 | 10.167.138.159 |
| 81 | 10.167.138.160/31 | 10.167.138.160 – 10.167.138.161 | 10.167.138.161 |
| 82 | 10.167.138.162/31 | 10.167.138.162 – 10.167.138.163 | 10.167.138.163 |
| 83 | 10.167.138.164/31 | 10.167.138.164 – 10.167.138.165 | 10.167.138.165 |
| 84 | 10.167.138.166/31 | 10.167.138.166 – 10.167.138.167 | 10.167.138.167 |
| 85 | 10.167.138.168/31 | 10.167.138.168 – 10.167.138.169 | 10.167.138.169 |
| 86 | 10.167.138.170/31 | 10.167.138.170 – 10.167.138.171 | 10.167.138.171 |
| 87 | 10.167.138.172/31 | 10.167.138.172 – 10.167.138.173 | 10.167.138.173 |
| 88 | 10.167.138.174/31 | 10.167.138.174 – 10.167.138.175 | 10.167.138.175 |
| 89 | 10.167.138.176/31 | 10.167.138.176 – 10.167.138.177 | 10.167.138.177 |
| 90 | 10.167.138.178/31 | 10.167.138.178 – 10.167.138.179 | 10.167.138.179 |
| 91 | 10.167.138.180/31 | 10.167.138.180 – 10.167.138.181 | 10.167.138.181 |
| 92 | 10.167.138.182/31 | 10.167.138.182 – 10.167.138.183 | 10.167.138.183 |
| 93 | 10.167.138.184/31 | 10.167.138.184 – 10.167.138.185 | 10.167.138.185 |
| 94 | 10.167.138.186/31 | 10.167.138.186 – 10.167.138.187 | 10.167.138.187 |
| 95 | 10.167.138.188/31 | 10.167.138.188 – 10.167.138.189 | 10.167.138.189 |
| 96 | 10.167.138.190/31 | 10.167.138.190 – 10.167.138.191 | 10.167.138.191 |
| 97 | 10.167.138.192/31 | 10.167.138.192 – 10.167.138.193 | 10.167.138.193 |
| 98 | 10.167.138.194/31 | 10.167.138.194 – 10.167.138.195 | 10.167.138.195 |
| 99 | 10.167.138.196/31 | 10.167.138.196 – 10.167.138.197 | 10.167.138.197 |
| 100 | 10.167.138.198/31 | 10.167.138.198 – 10.167.138.199 | 10.167.138.199 |
| 101 | 10.167.138.200/31 | 10.167.138.200 – 10.167.138.201 | 10.167.138.201 |
| 102 | 10.167.138.202/31 | 10.167.138.202 – 10.167.138.203 | 10.167.138.203 |
| 103 | 10.167.138.204/31 | 10.167.138.204 – 10.167.138.205 | 10.167.138.205 |
| 104 | 10.167.138.206/31 | 10.167.138.206 – 10.167.138.207 | 10.167.138.207 |
| 105 | 10.167.138.208/31 | 10.167.138.208 – 10.167.138.209 | 10.167.138.209 |
| 106 | 10.167.138.210/31 | 10.167.138.210 – 10.167.138.211 | 10.167.138.211 |
| 107 | 10.167.138.212/31 | 10.167.138.212 – 10.167.138.213 | 10.167.138.213 |
| 108 | 10.167.138.214/31 | 10.167.138.214 – 10.167.138.215 | 10.167.138.215 |
| 109 | 10.167.138.216/31 | 10.167.138.216 – 10.167.138.217 | 10.167.138.217 |
| 110 | 10.167.138.218/31 | 10.167.138.218 – 10.167.138.219 | 10.167.138.219 |
| 111 | 10.167.138.220/31 | 10.167.138.220 – 10.167.138.221 | 10.167.138.221 |
| 112 | 10.167.138.222/31 | 10.167.138.222 – 10.167.138.223 | 10.167.138.223 |
| 113 | 10.167.138.224/31 | 10.167.138.224 – 10.167.138.225 | 10.167.138.225 |
| 114 | 10.167.138.226/31 | 10.167.138.226 – 10.167.138.227 | 10.167.138.227 |
| 115 | 10.167.138.228/31 | 10.167.138.228 – 10.167.138.229 | 10.167.138.229 |
| 116 | 10.167.138.230/31 | 10.167.138.230 – 10.167.138.231 | 10.167.138.231 |
| 117 | 10.167.138.232/31 | 10.167.138.232 – 10.167.138.233 | 10.167.138.233 |
| 118 | 10.167.138.234/31 | 10.167.138.234 – 10.167.138.235 | 10.167.138.235 |
| 119 | 10.167.138.236/31 | 10.167.138.236 – 10.167.138.237 | 10.167.138.237 |
| 120 | 10.167.138.238/31 | 10.167.138.238 – 10.167.138.239 | 10.167.138.239 |
| 121 | 10.167.138.240/31 | 10.167.138.240 – 10.167.138.241 | 10.167.138.241 |
| 122 | 10.167.138.242/31 | 10.167.138.242 – 10.167.138.243 | 10.167.138.243 |
| 123 | 10.167.138.244/31 | 10.167.138.244 – 10.167.138.245 | 10.167.138.245 |
| 124 | 10.167.138.246/31 | 10.167.138.246 – 10.167.138.247 | 10.167.138.247 |
| 125 | 10.167.138.248/31 | 10.167.138.248 – 10.167.138.249 | 10.167.138.249 |
| 126 | 10.167.138.250/31 | 10.167.138.250 – 10.167.138.251 | 10.167.138.251 |
| 127 | 10.167.138.252/31 | 10.167.138.252 – 10.167.138.253 | 10.167.138.253 |
| 128 | 10.167.138.254/31 | 10.167.138.254 – 10.167.138.255 | 10.167.138.255 |
| 129 | 10.167.139.0/31 | 10.167.139.0 – 10.167.139.1 | 10.167.139.1 |
| 130 | 10.167.139.2/31 | 10.167.139.2 – 10.167.139.3 | 10.167.139.3 |
| 131 | 10.167.139.4/31 | 10.167.139.4 – 10.167.139.5 | 10.167.139.5 |
| 132 | 10.167.139.6/31 | 10.167.139.6 – 10.167.139.7 | 10.167.139.7 |
| 133 | 10.167.139.8/31 | 10.167.139.8 – 10.167.139.9 | 10.167.139.9 |
| 134 | 10.167.139.10/31 | 10.167.139.10 – 10.167.139.11 | 10.167.139.11 |
| 135 | 10.167.139.12/31 | 10.167.139.12 – 10.167.139.13 | 10.167.139.13 |
| 136 | 10.167.139.14/31 | 10.167.139.14 – 10.167.139.15 | 10.167.139.15 |
| 137 | 10.167.139.16/31 | 10.167.139.16 – 10.167.139.17 | 10.167.139.17 |
| 138 | 10.167.139.18/31 | 10.167.139.18 – 10.167.139.19 | 10.167.139.19 |
| 139 | 10.167.139.20/31 | 10.167.139.20 – 10.167.139.21 | 10.167.139.21 |
| 140 | 10.167.139.22/31 | 10.167.139.22 – 10.167.139.23 | 10.167.139.23 |
| 141 | 10.167.139.24/31 | 10.167.139.24 – 10.167.139.25 | 10.167.139.25 |
| 142 | 10.167.139.26/31 | 10.167.139.26 – 10.167.139.27 | 10.167.139.27 |
| 143 | 10.167.139.28/31 | 10.167.139.28 – 10.167.139.29 | 10.167.139.29 |
| 144 | 10.167.139.30/31 | 10.167.139.30 – 10.167.139.31 | 10.167.139.31 |
| 145 | 10.167.139.32/31 | 10.167.139.32 – 10.167.139.33 | 10.167.139.33 |
| 146 | 10.167.139.34/31 | 10.167.139.34 – 10.167.139.35 | 10.167.139.35 |
| 147 | 10.167.139.36/31 | 10.167.139.36 – 10.167.139.37 | 10.167.139.37 |
| 148 | 10.167.139.38/31 | 10.167.139.38 – 10.167.139.39 | 10.167.139.39 |
| 149 | 10.167.139.40/31 | 10.167.139.40 – 10.167.139.41 | 10.167.139.41 |
| 150 | 10.167.139.42/31 | 10.167.139.42 – 10.167.139.43 | 10.167.139.43 |
| 151 | 10.167.139.44/31 | 10.167.139.44 – 10.167.139.45 | 10.167.139.45 |
| 152 | 10.167.139.46/31 | 10.167.139.46 – 10.167.139.47 | 10.167.139.47 |
| 153 | 10.167.139.48/31 | 10.167.139.48 – 10.167.139.49 | 10.167.139.49 |
| 154 | 10.167.139.50/31 | 10.167.139.50 – 10.167.139.51 | 10.167.139.51 |
| 155 | 10.167.139.52/31 | 10.167.139.52 – 10.167.139.53 | 10.167.139.53 |
| 156 | 10.167.139.54/31 | 10.167.139.54 – 10.167.139.55 | 10.167.139.55 |
| 157 | 10.167.139.56/31 | 10.167.139.56 – 10.167.139.57 | 10.167.139.57 |
| 158 | 10.167.139.58/31 | 10.167.139.58 – 10.167.139.59 | 10.167.139.59 |
| 159 | 10.167.139.60/31 | 10.167.139.60 – 10.167.139.61 | 10.167.139.61 |
| 160 | 10.167.139.62/31 | 10.167.139.62 – 10.167.139.63 | 10.167.139.63 |
| 161 | 10.167.139.64/31 | 10.167.139.64 – 10.167.139.65 | 10.167.139.65 |
| 162 | 10.167.139.66/31 | 10.167.139.66 – 10.167.139.67 | 10.167.139.67 |
| 163 | 10.167.139.68/31 | 10.167.139.68 – 10.167.139.69 | 10.167.139.69 |
| 164 | 10.167.139.70/31 | 10.167.139.70 – 10.167.139.71 | 10.167.139.71 |
| 165 | 10.167.139.72/31 | 10.167.139.72 – 10.167.139.73 | 10.167.139.73 |
| 166 | 10.167.139.74/31 | 10.167.139.74 – 10.167.139.75 | 10.167.139.75 |
| 167 | 10.167.139.76/31 | 10.167.139.76 – 10.167.139.77 | 10.167.139.77 |
| 168 | 10.167.139.78/31 | 10.167.139.78 – 10.167.139.79 | 10.167.139.79 |
| 169 | 10.167.139.80/31 | 10.167.139.80 – 10.167.139.81 | 10.167.139.81 |
| 170 | 10.167.139.82/31 | 10.167.139.82 – 10.167.139.83 | 10.167.139.83 |
| 171 | 10.167.139.84/31 | 10.167.139.84 – 10.167.139.85 | 10.167.139.85 |
| 172 | 10.167.139.86/31 | 10.167.139.86 – 10.167.139.87 | 10.167.139.87 |
| 173 | 10.167.139.88/31 | 10.167.139.88 – 10.167.139.89 | 10.167.139.89 |
| 174 | 10.167.139.90/31 | 10.167.139.90 – 10.167.139.91 | 10.167.139.91 |
| 175 | 10.167.139.92/31 | 10.167.139.92 – 10.167.139.93 | 10.167.139.93 |
| 176 | 10.167.139.94/31 | 10.167.139.94 – 10.167.139.95 | 10.167.139.95 |
| 177 | 10.167.139.96/31 | 10.167.139.96 – 10.167.139.97 | 10.167.139.97 |
| 178 | 10.167.139.98/31 | 10.167.139.98 – 10.167.139.99 | 10.167.139.99 |
| 179 | 10.167.139.100/31 | 10.167.139.100 – 10.167.139.101 | 10.167.139.101 |
| 180 | 10.167.139.102/31 | 10.167.139.102 – 10.167.139.103 | 10.167.139.103 |
| 181 | 10.167.139.104/31 | 10.167.139.104 – 10.167.139.105 | 10.167.139.105 |
| 182 | 10.167.139.106/31 | 10.167.139.106 – 10.167.139.107 | 10.167.139.107 |
| 183 | 10.167.139.108/31 | 10.167.139.108 – 10.167.139.109 | 10.167.139.109 |
| 184 | 10.167.139.110/31 | 10.167.139.110 – 10.167.139.111 | 10.167.139.111 |
| 185 | 10.167.139.112/31 | 10.167.139.112 – 10.167.139.113 | 10.167.139.113 |
| 186 | 10.167.139.114/31 | 10.167.139.114 – 10.167.139.115 | 10.167.139.115 |
| 187 | 10.167.139.116/31 | 10.167.139.116 – 10.167.139.117 | 10.167.139.117 |
| 188 | 10.167.139.118/31 | 10.167.139.118 – 10.167.139.119 | 10.167.139.119 |
| 189 | 10.167.139.120/31 | 10.167.139.120 – 10.167.139.121 | 10.167.139.121 |
| 190 | 10.167.139.122/31 | 10.167.139.122 – 10.167.139.123 | 10.167.139.123 |
| 191 | 10.167.139.124/31 | 10.167.139.124 – 10.167.139.125 | 10.167.139.125 |
| 192 | 10.167.139.126/31 | 10.167.139.126 – 10.167.139.127 | 10.167.139.127 |
| 193 | 10.167.139.128/31 | 10.167.139.128 – 10.167.139.129 | 10.167.139.129 |
| 194 | 10.167.139.130/31 | 10.167.139.130 – 10.167.139.131 | 10.167.139.131 |
| 195 | 10.167.139.132/31 | 10.167.139.132 – 10.167.139.133 | 10.167.139.133 |
| 196 | 10.167.139.134/31 | 10.167.139.134 – 10.167.139.135 | 10.167.139.135 |
| 197 | 10.167.139.136/31 | 10.167.139.136 – 10.167.139.137 | 10.167.139.137 |
| 198 | 10.167.139.138/31 | 10.167.139.138 – 10.167.139.139 | 10.167.139.139 |
| 199 | 10.167.139.140/31 | 10.167.139.140 – 10.167.139.141 | 10.167.139.141 |
| 200 | 10.167.139.142/31 | 10.167.139.142 – 10.167.139.143 | 10.167.139.143 |
| 201 | 10.167.139.144/31 | 10.167.139.144 – 10.167.139.145 | 10.167.139.145 |
| 202 | 10.167.139.146/31 | 10.167.139.146 – 10.167.139.147 | 10.167.139.147 |
| 203 | 10.167.139.148/31 | 10.167.139.148 – 10.167.139.149 | 10.167.139.149 |
| 204 | 10.167.139.150/31 | 10.167.139.150 – 10.167.139.151 | 10.167.139.151 |
| 205 | 10.167.139.152/31 | 10.167.139.152 – 10.167.139.153 | 10.167.139.153 |
| 206 | 10.167.139.154/31 | 10.167.139.154 – 10.167.139.155 | 10.167.139.155 |
| 207 | 10.167.139.156/31 | 10.167.139.156 – 10.167.139.157 | 10.167.139.157 |
| 208 | 10.167.139.158/31 | 10.167.139.158 – 10.167.139.159 | 10.167.139.159 |
| 209 | 10.167.139.160/31 | 10.167.139.160 – 10.167.139.161 | 10.167.139.161 |
| 210 | 10.167.139.162/31 | 10.167.139.162 – 10.167.139.163 | 10.167.139.163 |
| 211 | 10.167.139.164/31 | 10.167.139.164 – 10.167.139.165 | 10.167.139.165 |
| 212 | 10.167.139.166/31 | 10.167.139.166 – 10.167.139.167 | 10.167.139.167 |
| 213 | 10.167.139.168/31 | 10.167.139.168 – 10.167.139.169 | 10.167.139.169 |
| 214 | 10.167.139.170/31 | 10.167.139.170 – 10.167.139.171 | 10.167.139.171 |
| 215 | 10.167.139.172/31 | 10.167.139.172 – 10.167.139.173 | 10.167.139.173 |
| 216 | 10.167.139.174/31 | 10.167.139.174 – 10.167.139.175 | 10.167.139.175 |
| 217 | 10.167.139.176/31 | 10.167.139.176 – 10.167.139.177 | 10.167.139.177 |
| 218 | 10.167.139.178/31 | 10.167.139.178 – 10.167.139.179 | 10.167.139.179 |
| 219 | 10.167.139.180/31 | 10.167.139.180 – 10.167.139.181 | 10.167.139.181 |
| 220 | 10.167.139.182/31 | 10.167.139.182 – 10.167.139.183 | 10.167.139.183 |
| 221 | 10.167.139.184/31 | 10.167.139.184 – 10.167.139.185 | 10.167.139.185 |
| 222 | 10.167.139.186/31 | 10.167.139.186 – 10.167.139.187 | 10.167.139.187 |
| 223 | 10.167.139.188/31 | 10.167.139.188 – 10.167.139.189 | 10.167.139.189 |
| 224 | 10.167.139.190/31 | 10.167.139.190 – 10.167.139.191 | 10.167.139.191 |
| 225 | 10.167.139.192/31 | 10.167.139.192 – 10.167.139.193 | 10.167.139.193 |
| 226 | 10.167.139.194/31 | 10.167.139.194 – 10.167.139.195 | 10.167.139.195 |
| 227 | 10.167.139.196/31 | 10.167.139.196 – 10.167.139.197 | 10.167.139.197 |
| 228 | 10.167.139.198/31 | 10.167.139.198 – 10.167.139.199 | 10.167.139.199 |
| 229 | 10.167.139.200/31 | 10.167.139.200 – 10.167.139.201 | 10.167.139.201 |
| 230 | 10.167.139.202/31 | 10.167.139.202 – 10.167.139.203 | 10.167.139.203 |
| 231 | 10.167.139.204/31 | 10.167.139.204 – 10.167.139.205 | 10.167.139.205 |
| 232 | 10.167.139.206/31 | 10.167.139.206 – 10.167.139.207 | 10.167.139.207 |
| 233 | 10.167.139.208/31 | 10.167.139.208 – 10.167.139.209 | 10.167.139.209 |
| 234 | 10.167.139.210/31 | 10.167.139.210 – 10.167.139.211 | 10.167.139.211 |
| 235 | 10.167.139.212/31 | 10.167.139.212 – 10.167.139.213 | 10.167.139.213 |
| 236 | 10.167.139.214/31 | 10.167.139.214 – 10.167.139.215 | 10.167.139.215 |
| 237 | 10.167.139.216/31 | 10.167.139.216 – 10.167.139.217 | 10.167.139.217 |
| 238 | 10.167.139.218/31 | 10.167.139.218 – 10.167.139.219 | 10.167.139.219 |
| 239 | 10.167.139.220/31 | 10.167.139.220 – 10.167.139.221 | 10.167.139.221 |
| 240 | 10.167.139.222/31 | 10.167.139.222 – 10.167.139.223 | 10.167.139.223 |
| 241 | 10.167.139.224/31 | 10.167.139.224 – 10.167.139.225 | 10.167.139.225 |
| 242 | 10.167.139.226/31 | 10.167.139.226 – 10.167.139.227 | 10.167.139.227 |
| 243 | 10.167.139.228/31 | 10.167.139.228 – 10.167.139.229 | 10.167.139.229 |
| 244 | 10.167.139.230/31 | 10.167.139.230 – 10.167.139.231 | 10.167.139.231 |
| 245 | 10.167.139.232/31 | 10.167.139.232 – 10.167.139.233 | 10.167.139.233 |
| 246 | 10.167.139.234/31 | 10.167.139.234 – 10.167.139.235 | 10.167.139.235 |
| 247 | 10.167.139.236/31 | 10.167.139.236 – 10.167.139.237 | 10.167.139.237 |
| 248 | 10.167.139.238/31 | 10.167.139.238 – 10.167.139.239 | 10.167.139.239 |
| 249 | 10.167.139.240/31 | 10.167.139.240 – 10.167.139.241 | 10.167.139.241 |
| 250 | 10.167.139.242/31 | 10.167.139.242 – 10.167.139.243 | 10.167.139.243 |
| 251 | 10.167.139.244/31 | 10.167.139.244 – 10.167.139.245 | 10.167.139.245 |
| 252 | 10.167.139.246/31 | 10.167.139.246 – 10.167.139.247 | 10.167.139.247 |
| 253 | 10.167.139.248/31 | 10.167.139.248 – 10.167.139.249 | 10.167.139.249 |
| 254 | 10.167.139.250/31 | 10.167.139.250 – 10.167.139.251 | 10.167.139.251 |
| 255 | 10.167.139.252/31 | 10.167.139.252 – 10.167.139.253 | 10.167.139.253 |
| 256 | 10.167.139.254/31 | 10.167.139.254 – 10.167.139.255 | 10.167.139.255 |
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.