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)10.19.158.0/23
network10.19.158.0/23
broadcast10.19.159.255
first host10.19.158.1
last host10.19.159.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classA
ipcalc 10.19.158.0/23
address00001010.00010011.10011110.00000000
subnet mask11111111.11111111.11111110.00000000
network00001010.00010011.10011110.00000000
broadcast00001010.00010011.10011111.11111111
green = network part, grey = host part
hex0x0a139e00
decimal169057792
reverse dns0.158.19.10.in-addr.arpa
ipv4-mapped::ffff:a13:9e00
/23 split into /31 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.19.158.0/31 | 10.19.158.0 – 10.19.158.1 | 10.19.158.1 |
| 2 | 10.19.158.2/31 | 10.19.158.2 – 10.19.158.3 | 10.19.158.3 |
| 3 | 10.19.158.4/31 | 10.19.158.4 – 10.19.158.5 | 10.19.158.5 |
| 4 | 10.19.158.6/31 | 10.19.158.6 – 10.19.158.7 | 10.19.158.7 |
| 5 | 10.19.158.8/31 | 10.19.158.8 – 10.19.158.9 | 10.19.158.9 |
| 6 | 10.19.158.10/31 | 10.19.158.10 – 10.19.158.11 | 10.19.158.11 |
| 7 | 10.19.158.12/31 | 10.19.158.12 – 10.19.158.13 | 10.19.158.13 |
| 8 | 10.19.158.14/31 | 10.19.158.14 – 10.19.158.15 | 10.19.158.15 |
| 9 | 10.19.158.16/31 | 10.19.158.16 – 10.19.158.17 | 10.19.158.17 |
| 10 | 10.19.158.18/31 | 10.19.158.18 – 10.19.158.19 | 10.19.158.19 |
| 11 | 10.19.158.20/31 | 10.19.158.20 – 10.19.158.21 | 10.19.158.21 |
| 12 | 10.19.158.22/31 | 10.19.158.22 – 10.19.158.23 | 10.19.158.23 |
| 13 | 10.19.158.24/31 | 10.19.158.24 – 10.19.158.25 | 10.19.158.25 |
| 14 | 10.19.158.26/31 | 10.19.158.26 – 10.19.158.27 | 10.19.158.27 |
| 15 | 10.19.158.28/31 | 10.19.158.28 – 10.19.158.29 | 10.19.158.29 |
| 16 | 10.19.158.30/31 | 10.19.158.30 – 10.19.158.31 | 10.19.158.31 |
| 17 | 10.19.158.32/31 | 10.19.158.32 – 10.19.158.33 | 10.19.158.33 |
| 18 | 10.19.158.34/31 | 10.19.158.34 – 10.19.158.35 | 10.19.158.35 |
| 19 | 10.19.158.36/31 | 10.19.158.36 – 10.19.158.37 | 10.19.158.37 |
| 20 | 10.19.158.38/31 | 10.19.158.38 – 10.19.158.39 | 10.19.158.39 |
| 21 | 10.19.158.40/31 | 10.19.158.40 – 10.19.158.41 | 10.19.158.41 |
| 22 | 10.19.158.42/31 | 10.19.158.42 – 10.19.158.43 | 10.19.158.43 |
| 23 | 10.19.158.44/31 | 10.19.158.44 – 10.19.158.45 | 10.19.158.45 |
| 24 | 10.19.158.46/31 | 10.19.158.46 – 10.19.158.47 | 10.19.158.47 |
| 25 | 10.19.158.48/31 | 10.19.158.48 – 10.19.158.49 | 10.19.158.49 |
| 26 | 10.19.158.50/31 | 10.19.158.50 – 10.19.158.51 | 10.19.158.51 |
| 27 | 10.19.158.52/31 | 10.19.158.52 – 10.19.158.53 | 10.19.158.53 |
| 28 | 10.19.158.54/31 | 10.19.158.54 – 10.19.158.55 | 10.19.158.55 |
| 29 | 10.19.158.56/31 | 10.19.158.56 – 10.19.158.57 | 10.19.158.57 |
| 30 | 10.19.158.58/31 | 10.19.158.58 – 10.19.158.59 | 10.19.158.59 |
| 31 | 10.19.158.60/31 | 10.19.158.60 – 10.19.158.61 | 10.19.158.61 |
| 32 | 10.19.158.62/31 | 10.19.158.62 – 10.19.158.63 | 10.19.158.63 |
| 33 | 10.19.158.64/31 | 10.19.158.64 – 10.19.158.65 | 10.19.158.65 |
| 34 | 10.19.158.66/31 | 10.19.158.66 – 10.19.158.67 | 10.19.158.67 |
| 35 | 10.19.158.68/31 | 10.19.158.68 – 10.19.158.69 | 10.19.158.69 |
| 36 | 10.19.158.70/31 | 10.19.158.70 – 10.19.158.71 | 10.19.158.71 |
| 37 | 10.19.158.72/31 | 10.19.158.72 – 10.19.158.73 | 10.19.158.73 |
| 38 | 10.19.158.74/31 | 10.19.158.74 – 10.19.158.75 | 10.19.158.75 |
| 39 | 10.19.158.76/31 | 10.19.158.76 – 10.19.158.77 | 10.19.158.77 |
| 40 | 10.19.158.78/31 | 10.19.158.78 – 10.19.158.79 | 10.19.158.79 |
| 41 | 10.19.158.80/31 | 10.19.158.80 – 10.19.158.81 | 10.19.158.81 |
| 42 | 10.19.158.82/31 | 10.19.158.82 – 10.19.158.83 | 10.19.158.83 |
| 43 | 10.19.158.84/31 | 10.19.158.84 – 10.19.158.85 | 10.19.158.85 |
| 44 | 10.19.158.86/31 | 10.19.158.86 – 10.19.158.87 | 10.19.158.87 |
| 45 | 10.19.158.88/31 | 10.19.158.88 – 10.19.158.89 | 10.19.158.89 |
| 46 | 10.19.158.90/31 | 10.19.158.90 – 10.19.158.91 | 10.19.158.91 |
| 47 | 10.19.158.92/31 | 10.19.158.92 – 10.19.158.93 | 10.19.158.93 |
| 48 | 10.19.158.94/31 | 10.19.158.94 – 10.19.158.95 | 10.19.158.95 |
| 49 | 10.19.158.96/31 | 10.19.158.96 – 10.19.158.97 | 10.19.158.97 |
| 50 | 10.19.158.98/31 | 10.19.158.98 – 10.19.158.99 | 10.19.158.99 |
| 51 | 10.19.158.100/31 | 10.19.158.100 – 10.19.158.101 | 10.19.158.101 |
| 52 | 10.19.158.102/31 | 10.19.158.102 – 10.19.158.103 | 10.19.158.103 |
| 53 | 10.19.158.104/31 | 10.19.158.104 – 10.19.158.105 | 10.19.158.105 |
| 54 | 10.19.158.106/31 | 10.19.158.106 – 10.19.158.107 | 10.19.158.107 |
| 55 | 10.19.158.108/31 | 10.19.158.108 – 10.19.158.109 | 10.19.158.109 |
| 56 | 10.19.158.110/31 | 10.19.158.110 – 10.19.158.111 | 10.19.158.111 |
| 57 | 10.19.158.112/31 | 10.19.158.112 – 10.19.158.113 | 10.19.158.113 |
| 58 | 10.19.158.114/31 | 10.19.158.114 – 10.19.158.115 | 10.19.158.115 |
| 59 | 10.19.158.116/31 | 10.19.158.116 – 10.19.158.117 | 10.19.158.117 |
| 60 | 10.19.158.118/31 | 10.19.158.118 – 10.19.158.119 | 10.19.158.119 |
| 61 | 10.19.158.120/31 | 10.19.158.120 – 10.19.158.121 | 10.19.158.121 |
| 62 | 10.19.158.122/31 | 10.19.158.122 – 10.19.158.123 | 10.19.158.123 |
| 63 | 10.19.158.124/31 | 10.19.158.124 – 10.19.158.125 | 10.19.158.125 |
| 64 | 10.19.158.126/31 | 10.19.158.126 – 10.19.158.127 | 10.19.158.127 |
| 65 | 10.19.158.128/31 | 10.19.158.128 – 10.19.158.129 | 10.19.158.129 |
| 66 | 10.19.158.130/31 | 10.19.158.130 – 10.19.158.131 | 10.19.158.131 |
| 67 | 10.19.158.132/31 | 10.19.158.132 – 10.19.158.133 | 10.19.158.133 |
| 68 | 10.19.158.134/31 | 10.19.158.134 – 10.19.158.135 | 10.19.158.135 |
| 69 | 10.19.158.136/31 | 10.19.158.136 – 10.19.158.137 | 10.19.158.137 |
| 70 | 10.19.158.138/31 | 10.19.158.138 – 10.19.158.139 | 10.19.158.139 |
| 71 | 10.19.158.140/31 | 10.19.158.140 – 10.19.158.141 | 10.19.158.141 |
| 72 | 10.19.158.142/31 | 10.19.158.142 – 10.19.158.143 | 10.19.158.143 |
| 73 | 10.19.158.144/31 | 10.19.158.144 – 10.19.158.145 | 10.19.158.145 |
| 74 | 10.19.158.146/31 | 10.19.158.146 – 10.19.158.147 | 10.19.158.147 |
| 75 | 10.19.158.148/31 | 10.19.158.148 – 10.19.158.149 | 10.19.158.149 |
| 76 | 10.19.158.150/31 | 10.19.158.150 – 10.19.158.151 | 10.19.158.151 |
| 77 | 10.19.158.152/31 | 10.19.158.152 – 10.19.158.153 | 10.19.158.153 |
| 78 | 10.19.158.154/31 | 10.19.158.154 – 10.19.158.155 | 10.19.158.155 |
| 79 | 10.19.158.156/31 | 10.19.158.156 – 10.19.158.157 | 10.19.158.157 |
| 80 | 10.19.158.158/31 | 10.19.158.158 – 10.19.158.159 | 10.19.158.159 |
| 81 | 10.19.158.160/31 | 10.19.158.160 – 10.19.158.161 | 10.19.158.161 |
| 82 | 10.19.158.162/31 | 10.19.158.162 – 10.19.158.163 | 10.19.158.163 |
| 83 | 10.19.158.164/31 | 10.19.158.164 – 10.19.158.165 | 10.19.158.165 |
| 84 | 10.19.158.166/31 | 10.19.158.166 – 10.19.158.167 | 10.19.158.167 |
| 85 | 10.19.158.168/31 | 10.19.158.168 – 10.19.158.169 | 10.19.158.169 |
| 86 | 10.19.158.170/31 | 10.19.158.170 – 10.19.158.171 | 10.19.158.171 |
| 87 | 10.19.158.172/31 | 10.19.158.172 – 10.19.158.173 | 10.19.158.173 |
| 88 | 10.19.158.174/31 | 10.19.158.174 – 10.19.158.175 | 10.19.158.175 |
| 89 | 10.19.158.176/31 | 10.19.158.176 – 10.19.158.177 | 10.19.158.177 |
| 90 | 10.19.158.178/31 | 10.19.158.178 – 10.19.158.179 | 10.19.158.179 |
| 91 | 10.19.158.180/31 | 10.19.158.180 – 10.19.158.181 | 10.19.158.181 |
| 92 | 10.19.158.182/31 | 10.19.158.182 – 10.19.158.183 | 10.19.158.183 |
| 93 | 10.19.158.184/31 | 10.19.158.184 – 10.19.158.185 | 10.19.158.185 |
| 94 | 10.19.158.186/31 | 10.19.158.186 – 10.19.158.187 | 10.19.158.187 |
| 95 | 10.19.158.188/31 | 10.19.158.188 – 10.19.158.189 | 10.19.158.189 |
| 96 | 10.19.158.190/31 | 10.19.158.190 – 10.19.158.191 | 10.19.158.191 |
| 97 | 10.19.158.192/31 | 10.19.158.192 – 10.19.158.193 | 10.19.158.193 |
| 98 | 10.19.158.194/31 | 10.19.158.194 – 10.19.158.195 | 10.19.158.195 |
| 99 | 10.19.158.196/31 | 10.19.158.196 – 10.19.158.197 | 10.19.158.197 |
| 100 | 10.19.158.198/31 | 10.19.158.198 – 10.19.158.199 | 10.19.158.199 |
| 101 | 10.19.158.200/31 | 10.19.158.200 – 10.19.158.201 | 10.19.158.201 |
| 102 | 10.19.158.202/31 | 10.19.158.202 – 10.19.158.203 | 10.19.158.203 |
| 103 | 10.19.158.204/31 | 10.19.158.204 – 10.19.158.205 | 10.19.158.205 |
| 104 | 10.19.158.206/31 | 10.19.158.206 – 10.19.158.207 | 10.19.158.207 |
| 105 | 10.19.158.208/31 | 10.19.158.208 – 10.19.158.209 | 10.19.158.209 |
| 106 | 10.19.158.210/31 | 10.19.158.210 – 10.19.158.211 | 10.19.158.211 |
| 107 | 10.19.158.212/31 | 10.19.158.212 – 10.19.158.213 | 10.19.158.213 |
| 108 | 10.19.158.214/31 | 10.19.158.214 – 10.19.158.215 | 10.19.158.215 |
| 109 | 10.19.158.216/31 | 10.19.158.216 – 10.19.158.217 | 10.19.158.217 |
| 110 | 10.19.158.218/31 | 10.19.158.218 – 10.19.158.219 | 10.19.158.219 |
| 111 | 10.19.158.220/31 | 10.19.158.220 – 10.19.158.221 | 10.19.158.221 |
| 112 | 10.19.158.222/31 | 10.19.158.222 – 10.19.158.223 | 10.19.158.223 |
| 113 | 10.19.158.224/31 | 10.19.158.224 – 10.19.158.225 | 10.19.158.225 |
| 114 | 10.19.158.226/31 | 10.19.158.226 – 10.19.158.227 | 10.19.158.227 |
| 115 | 10.19.158.228/31 | 10.19.158.228 – 10.19.158.229 | 10.19.158.229 |
| 116 | 10.19.158.230/31 | 10.19.158.230 – 10.19.158.231 | 10.19.158.231 |
| 117 | 10.19.158.232/31 | 10.19.158.232 – 10.19.158.233 | 10.19.158.233 |
| 118 | 10.19.158.234/31 | 10.19.158.234 – 10.19.158.235 | 10.19.158.235 |
| 119 | 10.19.158.236/31 | 10.19.158.236 – 10.19.158.237 | 10.19.158.237 |
| 120 | 10.19.158.238/31 | 10.19.158.238 – 10.19.158.239 | 10.19.158.239 |
| 121 | 10.19.158.240/31 | 10.19.158.240 – 10.19.158.241 | 10.19.158.241 |
| 122 | 10.19.158.242/31 | 10.19.158.242 – 10.19.158.243 | 10.19.158.243 |
| 123 | 10.19.158.244/31 | 10.19.158.244 – 10.19.158.245 | 10.19.158.245 |
| 124 | 10.19.158.246/31 | 10.19.158.246 – 10.19.158.247 | 10.19.158.247 |
| 125 | 10.19.158.248/31 | 10.19.158.248 – 10.19.158.249 | 10.19.158.249 |
| 126 | 10.19.158.250/31 | 10.19.158.250 – 10.19.158.251 | 10.19.158.251 |
| 127 | 10.19.158.252/31 | 10.19.158.252 – 10.19.158.253 | 10.19.158.253 |
| 128 | 10.19.158.254/31 | 10.19.158.254 – 10.19.158.255 | 10.19.158.255 |
| 129 | 10.19.159.0/31 | 10.19.159.0 – 10.19.159.1 | 10.19.159.1 |
| 130 | 10.19.159.2/31 | 10.19.159.2 – 10.19.159.3 | 10.19.159.3 |
| 131 | 10.19.159.4/31 | 10.19.159.4 – 10.19.159.5 | 10.19.159.5 |
| 132 | 10.19.159.6/31 | 10.19.159.6 – 10.19.159.7 | 10.19.159.7 |
| 133 | 10.19.159.8/31 | 10.19.159.8 – 10.19.159.9 | 10.19.159.9 |
| 134 | 10.19.159.10/31 | 10.19.159.10 – 10.19.159.11 | 10.19.159.11 |
| 135 | 10.19.159.12/31 | 10.19.159.12 – 10.19.159.13 | 10.19.159.13 |
| 136 | 10.19.159.14/31 | 10.19.159.14 – 10.19.159.15 | 10.19.159.15 |
| 137 | 10.19.159.16/31 | 10.19.159.16 – 10.19.159.17 | 10.19.159.17 |
| 138 | 10.19.159.18/31 | 10.19.159.18 – 10.19.159.19 | 10.19.159.19 |
| 139 | 10.19.159.20/31 | 10.19.159.20 – 10.19.159.21 | 10.19.159.21 |
| 140 | 10.19.159.22/31 | 10.19.159.22 – 10.19.159.23 | 10.19.159.23 |
| 141 | 10.19.159.24/31 | 10.19.159.24 – 10.19.159.25 | 10.19.159.25 |
| 142 | 10.19.159.26/31 | 10.19.159.26 – 10.19.159.27 | 10.19.159.27 |
| 143 | 10.19.159.28/31 | 10.19.159.28 – 10.19.159.29 | 10.19.159.29 |
| 144 | 10.19.159.30/31 | 10.19.159.30 – 10.19.159.31 | 10.19.159.31 |
| 145 | 10.19.159.32/31 | 10.19.159.32 – 10.19.159.33 | 10.19.159.33 |
| 146 | 10.19.159.34/31 | 10.19.159.34 – 10.19.159.35 | 10.19.159.35 |
| 147 | 10.19.159.36/31 | 10.19.159.36 – 10.19.159.37 | 10.19.159.37 |
| 148 | 10.19.159.38/31 | 10.19.159.38 – 10.19.159.39 | 10.19.159.39 |
| 149 | 10.19.159.40/31 | 10.19.159.40 – 10.19.159.41 | 10.19.159.41 |
| 150 | 10.19.159.42/31 | 10.19.159.42 – 10.19.159.43 | 10.19.159.43 |
| 151 | 10.19.159.44/31 | 10.19.159.44 – 10.19.159.45 | 10.19.159.45 |
| 152 | 10.19.159.46/31 | 10.19.159.46 – 10.19.159.47 | 10.19.159.47 |
| 153 | 10.19.159.48/31 | 10.19.159.48 – 10.19.159.49 | 10.19.159.49 |
| 154 | 10.19.159.50/31 | 10.19.159.50 – 10.19.159.51 | 10.19.159.51 |
| 155 | 10.19.159.52/31 | 10.19.159.52 – 10.19.159.53 | 10.19.159.53 |
| 156 | 10.19.159.54/31 | 10.19.159.54 – 10.19.159.55 | 10.19.159.55 |
| 157 | 10.19.159.56/31 | 10.19.159.56 – 10.19.159.57 | 10.19.159.57 |
| 158 | 10.19.159.58/31 | 10.19.159.58 – 10.19.159.59 | 10.19.159.59 |
| 159 | 10.19.159.60/31 | 10.19.159.60 – 10.19.159.61 | 10.19.159.61 |
| 160 | 10.19.159.62/31 | 10.19.159.62 – 10.19.159.63 | 10.19.159.63 |
| 161 | 10.19.159.64/31 | 10.19.159.64 – 10.19.159.65 | 10.19.159.65 |
| 162 | 10.19.159.66/31 | 10.19.159.66 – 10.19.159.67 | 10.19.159.67 |
| 163 | 10.19.159.68/31 | 10.19.159.68 – 10.19.159.69 | 10.19.159.69 |
| 164 | 10.19.159.70/31 | 10.19.159.70 – 10.19.159.71 | 10.19.159.71 |
| 165 | 10.19.159.72/31 | 10.19.159.72 – 10.19.159.73 | 10.19.159.73 |
| 166 | 10.19.159.74/31 | 10.19.159.74 – 10.19.159.75 | 10.19.159.75 |
| 167 | 10.19.159.76/31 | 10.19.159.76 – 10.19.159.77 | 10.19.159.77 |
| 168 | 10.19.159.78/31 | 10.19.159.78 – 10.19.159.79 | 10.19.159.79 |
| 169 | 10.19.159.80/31 | 10.19.159.80 – 10.19.159.81 | 10.19.159.81 |
| 170 | 10.19.159.82/31 | 10.19.159.82 – 10.19.159.83 | 10.19.159.83 |
| 171 | 10.19.159.84/31 | 10.19.159.84 – 10.19.159.85 | 10.19.159.85 |
| 172 | 10.19.159.86/31 | 10.19.159.86 – 10.19.159.87 | 10.19.159.87 |
| 173 | 10.19.159.88/31 | 10.19.159.88 – 10.19.159.89 | 10.19.159.89 |
| 174 | 10.19.159.90/31 | 10.19.159.90 – 10.19.159.91 | 10.19.159.91 |
| 175 | 10.19.159.92/31 | 10.19.159.92 – 10.19.159.93 | 10.19.159.93 |
| 176 | 10.19.159.94/31 | 10.19.159.94 – 10.19.159.95 | 10.19.159.95 |
| 177 | 10.19.159.96/31 | 10.19.159.96 – 10.19.159.97 | 10.19.159.97 |
| 178 | 10.19.159.98/31 | 10.19.159.98 – 10.19.159.99 | 10.19.159.99 |
| 179 | 10.19.159.100/31 | 10.19.159.100 – 10.19.159.101 | 10.19.159.101 |
| 180 | 10.19.159.102/31 | 10.19.159.102 – 10.19.159.103 | 10.19.159.103 |
| 181 | 10.19.159.104/31 | 10.19.159.104 – 10.19.159.105 | 10.19.159.105 |
| 182 | 10.19.159.106/31 | 10.19.159.106 – 10.19.159.107 | 10.19.159.107 |
| 183 | 10.19.159.108/31 | 10.19.159.108 – 10.19.159.109 | 10.19.159.109 |
| 184 | 10.19.159.110/31 | 10.19.159.110 – 10.19.159.111 | 10.19.159.111 |
| 185 | 10.19.159.112/31 | 10.19.159.112 – 10.19.159.113 | 10.19.159.113 |
| 186 | 10.19.159.114/31 | 10.19.159.114 – 10.19.159.115 | 10.19.159.115 |
| 187 | 10.19.159.116/31 | 10.19.159.116 – 10.19.159.117 | 10.19.159.117 |
| 188 | 10.19.159.118/31 | 10.19.159.118 – 10.19.159.119 | 10.19.159.119 |
| 189 | 10.19.159.120/31 | 10.19.159.120 – 10.19.159.121 | 10.19.159.121 |
| 190 | 10.19.159.122/31 | 10.19.159.122 – 10.19.159.123 | 10.19.159.123 |
| 191 | 10.19.159.124/31 | 10.19.159.124 – 10.19.159.125 | 10.19.159.125 |
| 192 | 10.19.159.126/31 | 10.19.159.126 – 10.19.159.127 | 10.19.159.127 |
| 193 | 10.19.159.128/31 | 10.19.159.128 – 10.19.159.129 | 10.19.159.129 |
| 194 | 10.19.159.130/31 | 10.19.159.130 – 10.19.159.131 | 10.19.159.131 |
| 195 | 10.19.159.132/31 | 10.19.159.132 – 10.19.159.133 | 10.19.159.133 |
| 196 | 10.19.159.134/31 | 10.19.159.134 – 10.19.159.135 | 10.19.159.135 |
| 197 | 10.19.159.136/31 | 10.19.159.136 – 10.19.159.137 | 10.19.159.137 |
| 198 | 10.19.159.138/31 | 10.19.159.138 – 10.19.159.139 | 10.19.159.139 |
| 199 | 10.19.159.140/31 | 10.19.159.140 – 10.19.159.141 | 10.19.159.141 |
| 200 | 10.19.159.142/31 | 10.19.159.142 – 10.19.159.143 | 10.19.159.143 |
| 201 | 10.19.159.144/31 | 10.19.159.144 – 10.19.159.145 | 10.19.159.145 |
| 202 | 10.19.159.146/31 | 10.19.159.146 – 10.19.159.147 | 10.19.159.147 |
| 203 | 10.19.159.148/31 | 10.19.159.148 – 10.19.159.149 | 10.19.159.149 |
| 204 | 10.19.159.150/31 | 10.19.159.150 – 10.19.159.151 | 10.19.159.151 |
| 205 | 10.19.159.152/31 | 10.19.159.152 – 10.19.159.153 | 10.19.159.153 |
| 206 | 10.19.159.154/31 | 10.19.159.154 – 10.19.159.155 | 10.19.159.155 |
| 207 | 10.19.159.156/31 | 10.19.159.156 – 10.19.159.157 | 10.19.159.157 |
| 208 | 10.19.159.158/31 | 10.19.159.158 – 10.19.159.159 | 10.19.159.159 |
| 209 | 10.19.159.160/31 | 10.19.159.160 – 10.19.159.161 | 10.19.159.161 |
| 210 | 10.19.159.162/31 | 10.19.159.162 – 10.19.159.163 | 10.19.159.163 |
| 211 | 10.19.159.164/31 | 10.19.159.164 – 10.19.159.165 | 10.19.159.165 |
| 212 | 10.19.159.166/31 | 10.19.159.166 – 10.19.159.167 | 10.19.159.167 |
| 213 | 10.19.159.168/31 | 10.19.159.168 – 10.19.159.169 | 10.19.159.169 |
| 214 | 10.19.159.170/31 | 10.19.159.170 – 10.19.159.171 | 10.19.159.171 |
| 215 | 10.19.159.172/31 | 10.19.159.172 – 10.19.159.173 | 10.19.159.173 |
| 216 | 10.19.159.174/31 | 10.19.159.174 – 10.19.159.175 | 10.19.159.175 |
| 217 | 10.19.159.176/31 | 10.19.159.176 – 10.19.159.177 | 10.19.159.177 |
| 218 | 10.19.159.178/31 | 10.19.159.178 – 10.19.159.179 | 10.19.159.179 |
| 219 | 10.19.159.180/31 | 10.19.159.180 – 10.19.159.181 | 10.19.159.181 |
| 220 | 10.19.159.182/31 | 10.19.159.182 – 10.19.159.183 | 10.19.159.183 |
| 221 | 10.19.159.184/31 | 10.19.159.184 – 10.19.159.185 | 10.19.159.185 |
| 222 | 10.19.159.186/31 | 10.19.159.186 – 10.19.159.187 | 10.19.159.187 |
| 223 | 10.19.159.188/31 | 10.19.159.188 – 10.19.159.189 | 10.19.159.189 |
| 224 | 10.19.159.190/31 | 10.19.159.190 – 10.19.159.191 | 10.19.159.191 |
| 225 | 10.19.159.192/31 | 10.19.159.192 – 10.19.159.193 | 10.19.159.193 |
| 226 | 10.19.159.194/31 | 10.19.159.194 – 10.19.159.195 | 10.19.159.195 |
| 227 | 10.19.159.196/31 | 10.19.159.196 – 10.19.159.197 | 10.19.159.197 |
| 228 | 10.19.159.198/31 | 10.19.159.198 – 10.19.159.199 | 10.19.159.199 |
| 229 | 10.19.159.200/31 | 10.19.159.200 – 10.19.159.201 | 10.19.159.201 |
| 230 | 10.19.159.202/31 | 10.19.159.202 – 10.19.159.203 | 10.19.159.203 |
| 231 | 10.19.159.204/31 | 10.19.159.204 – 10.19.159.205 | 10.19.159.205 |
| 232 | 10.19.159.206/31 | 10.19.159.206 – 10.19.159.207 | 10.19.159.207 |
| 233 | 10.19.159.208/31 | 10.19.159.208 – 10.19.159.209 | 10.19.159.209 |
| 234 | 10.19.159.210/31 | 10.19.159.210 – 10.19.159.211 | 10.19.159.211 |
| 235 | 10.19.159.212/31 | 10.19.159.212 – 10.19.159.213 | 10.19.159.213 |
| 236 | 10.19.159.214/31 | 10.19.159.214 – 10.19.159.215 | 10.19.159.215 |
| 237 | 10.19.159.216/31 | 10.19.159.216 – 10.19.159.217 | 10.19.159.217 |
| 238 | 10.19.159.218/31 | 10.19.159.218 – 10.19.159.219 | 10.19.159.219 |
| 239 | 10.19.159.220/31 | 10.19.159.220 – 10.19.159.221 | 10.19.159.221 |
| 240 | 10.19.159.222/31 | 10.19.159.222 – 10.19.159.223 | 10.19.159.223 |
| 241 | 10.19.159.224/31 | 10.19.159.224 – 10.19.159.225 | 10.19.159.225 |
| 242 | 10.19.159.226/31 | 10.19.159.226 – 10.19.159.227 | 10.19.159.227 |
| 243 | 10.19.159.228/31 | 10.19.159.228 – 10.19.159.229 | 10.19.159.229 |
| 244 | 10.19.159.230/31 | 10.19.159.230 – 10.19.159.231 | 10.19.159.231 |
| 245 | 10.19.159.232/31 | 10.19.159.232 – 10.19.159.233 | 10.19.159.233 |
| 246 | 10.19.159.234/31 | 10.19.159.234 – 10.19.159.235 | 10.19.159.235 |
| 247 | 10.19.159.236/31 | 10.19.159.236 – 10.19.159.237 | 10.19.159.237 |
| 248 | 10.19.159.238/31 | 10.19.159.238 – 10.19.159.239 | 10.19.159.239 |
| 249 | 10.19.159.240/31 | 10.19.159.240 – 10.19.159.241 | 10.19.159.241 |
| 250 | 10.19.159.242/31 | 10.19.159.242 – 10.19.159.243 | 10.19.159.243 |
| 251 | 10.19.159.244/31 | 10.19.159.244 – 10.19.159.245 | 10.19.159.245 |
| 252 | 10.19.159.246/31 | 10.19.159.246 – 10.19.159.247 | 10.19.159.247 |
| 253 | 10.19.159.248/31 | 10.19.159.248 – 10.19.159.249 | 10.19.159.249 |
| 254 | 10.19.159.250/31 | 10.19.159.250 – 10.19.159.251 | 10.19.159.251 |
| 255 | 10.19.159.252/31 | 10.19.159.252 – 10.19.159.253 | 10.19.159.253 |
| 256 | 10.19.159.254/31 | 10.19.159.254 – 10.19.159.255 | 10.19.159.255 |
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.