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)172.16.14.0/23
network172.16.14.0/23
broadcast172.16.15.255
first host172.16.14.1
last host172.16.15.254
subnet mask255.255.254.0
wildcard0.0.1.255
addresses512
usable hosts510
classB
ipcalc 172.16.14.0/23
address10101100.00010000.00001110.00000000
subnet mask11111111.11111111.11111110.00000000
network10101100.00010000.00001110.00000000
broadcast10101100.00010000.00001111.11111111
green = network part, grey = host part
hex0xac100e00
decimal2886733312
reverse dns0.14.16.172.in-addr.arpa
ipv4-mapped::ffff:ac10:e00
/23 split into /31 · 256 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 172.16.14.0/31 | 172.16.14.0 – 172.16.14.1 | 172.16.14.1 |
| 2 | 172.16.14.2/31 | 172.16.14.2 – 172.16.14.3 | 172.16.14.3 |
| 3 | 172.16.14.4/31 | 172.16.14.4 – 172.16.14.5 | 172.16.14.5 |
| 4 | 172.16.14.6/31 | 172.16.14.6 – 172.16.14.7 | 172.16.14.7 |
| 5 | 172.16.14.8/31 | 172.16.14.8 – 172.16.14.9 | 172.16.14.9 |
| 6 | 172.16.14.10/31 | 172.16.14.10 – 172.16.14.11 | 172.16.14.11 |
| 7 | 172.16.14.12/31 | 172.16.14.12 – 172.16.14.13 | 172.16.14.13 |
| 8 | 172.16.14.14/31 | 172.16.14.14 – 172.16.14.15 | 172.16.14.15 |
| 9 | 172.16.14.16/31 | 172.16.14.16 – 172.16.14.17 | 172.16.14.17 |
| 10 | 172.16.14.18/31 | 172.16.14.18 – 172.16.14.19 | 172.16.14.19 |
| 11 | 172.16.14.20/31 | 172.16.14.20 – 172.16.14.21 | 172.16.14.21 |
| 12 | 172.16.14.22/31 | 172.16.14.22 – 172.16.14.23 | 172.16.14.23 |
| 13 | 172.16.14.24/31 | 172.16.14.24 – 172.16.14.25 | 172.16.14.25 |
| 14 | 172.16.14.26/31 | 172.16.14.26 – 172.16.14.27 | 172.16.14.27 |
| 15 | 172.16.14.28/31 | 172.16.14.28 – 172.16.14.29 | 172.16.14.29 |
| 16 | 172.16.14.30/31 | 172.16.14.30 – 172.16.14.31 | 172.16.14.31 |
| 17 | 172.16.14.32/31 | 172.16.14.32 – 172.16.14.33 | 172.16.14.33 |
| 18 | 172.16.14.34/31 | 172.16.14.34 – 172.16.14.35 | 172.16.14.35 |
| 19 | 172.16.14.36/31 | 172.16.14.36 – 172.16.14.37 | 172.16.14.37 |
| 20 | 172.16.14.38/31 | 172.16.14.38 – 172.16.14.39 | 172.16.14.39 |
| 21 | 172.16.14.40/31 | 172.16.14.40 – 172.16.14.41 | 172.16.14.41 |
| 22 | 172.16.14.42/31 | 172.16.14.42 – 172.16.14.43 | 172.16.14.43 |
| 23 | 172.16.14.44/31 | 172.16.14.44 – 172.16.14.45 | 172.16.14.45 |
| 24 | 172.16.14.46/31 | 172.16.14.46 – 172.16.14.47 | 172.16.14.47 |
| 25 | 172.16.14.48/31 | 172.16.14.48 – 172.16.14.49 | 172.16.14.49 |
| 26 | 172.16.14.50/31 | 172.16.14.50 – 172.16.14.51 | 172.16.14.51 |
| 27 | 172.16.14.52/31 | 172.16.14.52 – 172.16.14.53 | 172.16.14.53 |
| 28 | 172.16.14.54/31 | 172.16.14.54 – 172.16.14.55 | 172.16.14.55 |
| 29 | 172.16.14.56/31 | 172.16.14.56 – 172.16.14.57 | 172.16.14.57 |
| 30 | 172.16.14.58/31 | 172.16.14.58 – 172.16.14.59 | 172.16.14.59 |
| 31 | 172.16.14.60/31 | 172.16.14.60 – 172.16.14.61 | 172.16.14.61 |
| 32 | 172.16.14.62/31 | 172.16.14.62 – 172.16.14.63 | 172.16.14.63 |
| 33 | 172.16.14.64/31 | 172.16.14.64 – 172.16.14.65 | 172.16.14.65 |
| 34 | 172.16.14.66/31 | 172.16.14.66 – 172.16.14.67 | 172.16.14.67 |
| 35 | 172.16.14.68/31 | 172.16.14.68 – 172.16.14.69 | 172.16.14.69 |
| 36 | 172.16.14.70/31 | 172.16.14.70 – 172.16.14.71 | 172.16.14.71 |
| 37 | 172.16.14.72/31 | 172.16.14.72 – 172.16.14.73 | 172.16.14.73 |
| 38 | 172.16.14.74/31 | 172.16.14.74 – 172.16.14.75 | 172.16.14.75 |
| 39 | 172.16.14.76/31 | 172.16.14.76 – 172.16.14.77 | 172.16.14.77 |
| 40 | 172.16.14.78/31 | 172.16.14.78 – 172.16.14.79 | 172.16.14.79 |
| 41 | 172.16.14.80/31 | 172.16.14.80 – 172.16.14.81 | 172.16.14.81 |
| 42 | 172.16.14.82/31 | 172.16.14.82 – 172.16.14.83 | 172.16.14.83 |
| 43 | 172.16.14.84/31 | 172.16.14.84 – 172.16.14.85 | 172.16.14.85 |
| 44 | 172.16.14.86/31 | 172.16.14.86 – 172.16.14.87 | 172.16.14.87 |
| 45 | 172.16.14.88/31 | 172.16.14.88 – 172.16.14.89 | 172.16.14.89 |
| 46 | 172.16.14.90/31 | 172.16.14.90 – 172.16.14.91 | 172.16.14.91 |
| 47 | 172.16.14.92/31 | 172.16.14.92 – 172.16.14.93 | 172.16.14.93 |
| 48 | 172.16.14.94/31 | 172.16.14.94 – 172.16.14.95 | 172.16.14.95 |
| 49 | 172.16.14.96/31 | 172.16.14.96 – 172.16.14.97 | 172.16.14.97 |
| 50 | 172.16.14.98/31 | 172.16.14.98 – 172.16.14.99 | 172.16.14.99 |
| 51 | 172.16.14.100/31 | 172.16.14.100 – 172.16.14.101 | 172.16.14.101 |
| 52 | 172.16.14.102/31 | 172.16.14.102 – 172.16.14.103 | 172.16.14.103 |
| 53 | 172.16.14.104/31 | 172.16.14.104 – 172.16.14.105 | 172.16.14.105 |
| 54 | 172.16.14.106/31 | 172.16.14.106 – 172.16.14.107 | 172.16.14.107 |
| 55 | 172.16.14.108/31 | 172.16.14.108 – 172.16.14.109 | 172.16.14.109 |
| 56 | 172.16.14.110/31 | 172.16.14.110 – 172.16.14.111 | 172.16.14.111 |
| 57 | 172.16.14.112/31 | 172.16.14.112 – 172.16.14.113 | 172.16.14.113 |
| 58 | 172.16.14.114/31 | 172.16.14.114 – 172.16.14.115 | 172.16.14.115 |
| 59 | 172.16.14.116/31 | 172.16.14.116 – 172.16.14.117 | 172.16.14.117 |
| 60 | 172.16.14.118/31 | 172.16.14.118 – 172.16.14.119 | 172.16.14.119 |
| 61 | 172.16.14.120/31 | 172.16.14.120 – 172.16.14.121 | 172.16.14.121 |
| 62 | 172.16.14.122/31 | 172.16.14.122 – 172.16.14.123 | 172.16.14.123 |
| 63 | 172.16.14.124/31 | 172.16.14.124 – 172.16.14.125 | 172.16.14.125 |
| 64 | 172.16.14.126/31 | 172.16.14.126 – 172.16.14.127 | 172.16.14.127 |
| 65 | 172.16.14.128/31 | 172.16.14.128 – 172.16.14.129 | 172.16.14.129 |
| 66 | 172.16.14.130/31 | 172.16.14.130 – 172.16.14.131 | 172.16.14.131 |
| 67 | 172.16.14.132/31 | 172.16.14.132 – 172.16.14.133 | 172.16.14.133 |
| 68 | 172.16.14.134/31 | 172.16.14.134 – 172.16.14.135 | 172.16.14.135 |
| 69 | 172.16.14.136/31 | 172.16.14.136 – 172.16.14.137 | 172.16.14.137 |
| 70 | 172.16.14.138/31 | 172.16.14.138 – 172.16.14.139 | 172.16.14.139 |
| 71 | 172.16.14.140/31 | 172.16.14.140 – 172.16.14.141 | 172.16.14.141 |
| 72 | 172.16.14.142/31 | 172.16.14.142 – 172.16.14.143 | 172.16.14.143 |
| 73 | 172.16.14.144/31 | 172.16.14.144 – 172.16.14.145 | 172.16.14.145 |
| 74 | 172.16.14.146/31 | 172.16.14.146 – 172.16.14.147 | 172.16.14.147 |
| 75 | 172.16.14.148/31 | 172.16.14.148 – 172.16.14.149 | 172.16.14.149 |
| 76 | 172.16.14.150/31 | 172.16.14.150 – 172.16.14.151 | 172.16.14.151 |
| 77 | 172.16.14.152/31 | 172.16.14.152 – 172.16.14.153 | 172.16.14.153 |
| 78 | 172.16.14.154/31 | 172.16.14.154 – 172.16.14.155 | 172.16.14.155 |
| 79 | 172.16.14.156/31 | 172.16.14.156 – 172.16.14.157 | 172.16.14.157 |
| 80 | 172.16.14.158/31 | 172.16.14.158 – 172.16.14.159 | 172.16.14.159 |
| 81 | 172.16.14.160/31 | 172.16.14.160 – 172.16.14.161 | 172.16.14.161 |
| 82 | 172.16.14.162/31 | 172.16.14.162 – 172.16.14.163 | 172.16.14.163 |
| 83 | 172.16.14.164/31 | 172.16.14.164 – 172.16.14.165 | 172.16.14.165 |
| 84 | 172.16.14.166/31 | 172.16.14.166 – 172.16.14.167 | 172.16.14.167 |
| 85 | 172.16.14.168/31 | 172.16.14.168 – 172.16.14.169 | 172.16.14.169 |
| 86 | 172.16.14.170/31 | 172.16.14.170 – 172.16.14.171 | 172.16.14.171 |
| 87 | 172.16.14.172/31 | 172.16.14.172 – 172.16.14.173 | 172.16.14.173 |
| 88 | 172.16.14.174/31 | 172.16.14.174 – 172.16.14.175 | 172.16.14.175 |
| 89 | 172.16.14.176/31 | 172.16.14.176 – 172.16.14.177 | 172.16.14.177 |
| 90 | 172.16.14.178/31 | 172.16.14.178 – 172.16.14.179 | 172.16.14.179 |
| 91 | 172.16.14.180/31 | 172.16.14.180 – 172.16.14.181 | 172.16.14.181 |
| 92 | 172.16.14.182/31 | 172.16.14.182 – 172.16.14.183 | 172.16.14.183 |
| 93 | 172.16.14.184/31 | 172.16.14.184 – 172.16.14.185 | 172.16.14.185 |
| 94 | 172.16.14.186/31 | 172.16.14.186 – 172.16.14.187 | 172.16.14.187 |
| 95 | 172.16.14.188/31 | 172.16.14.188 – 172.16.14.189 | 172.16.14.189 |
| 96 | 172.16.14.190/31 | 172.16.14.190 – 172.16.14.191 | 172.16.14.191 |
| 97 | 172.16.14.192/31 | 172.16.14.192 – 172.16.14.193 | 172.16.14.193 |
| 98 | 172.16.14.194/31 | 172.16.14.194 – 172.16.14.195 | 172.16.14.195 |
| 99 | 172.16.14.196/31 | 172.16.14.196 – 172.16.14.197 | 172.16.14.197 |
| 100 | 172.16.14.198/31 | 172.16.14.198 – 172.16.14.199 | 172.16.14.199 |
| 101 | 172.16.14.200/31 | 172.16.14.200 – 172.16.14.201 | 172.16.14.201 |
| 102 | 172.16.14.202/31 | 172.16.14.202 – 172.16.14.203 | 172.16.14.203 |
| 103 | 172.16.14.204/31 | 172.16.14.204 – 172.16.14.205 | 172.16.14.205 |
| 104 | 172.16.14.206/31 | 172.16.14.206 – 172.16.14.207 | 172.16.14.207 |
| 105 | 172.16.14.208/31 | 172.16.14.208 – 172.16.14.209 | 172.16.14.209 |
| 106 | 172.16.14.210/31 | 172.16.14.210 – 172.16.14.211 | 172.16.14.211 |
| 107 | 172.16.14.212/31 | 172.16.14.212 – 172.16.14.213 | 172.16.14.213 |
| 108 | 172.16.14.214/31 | 172.16.14.214 – 172.16.14.215 | 172.16.14.215 |
| 109 | 172.16.14.216/31 | 172.16.14.216 – 172.16.14.217 | 172.16.14.217 |
| 110 | 172.16.14.218/31 | 172.16.14.218 – 172.16.14.219 | 172.16.14.219 |
| 111 | 172.16.14.220/31 | 172.16.14.220 – 172.16.14.221 | 172.16.14.221 |
| 112 | 172.16.14.222/31 | 172.16.14.222 – 172.16.14.223 | 172.16.14.223 |
| 113 | 172.16.14.224/31 | 172.16.14.224 – 172.16.14.225 | 172.16.14.225 |
| 114 | 172.16.14.226/31 | 172.16.14.226 – 172.16.14.227 | 172.16.14.227 |
| 115 | 172.16.14.228/31 | 172.16.14.228 – 172.16.14.229 | 172.16.14.229 |
| 116 | 172.16.14.230/31 | 172.16.14.230 – 172.16.14.231 | 172.16.14.231 |
| 117 | 172.16.14.232/31 | 172.16.14.232 – 172.16.14.233 | 172.16.14.233 |
| 118 | 172.16.14.234/31 | 172.16.14.234 – 172.16.14.235 | 172.16.14.235 |
| 119 | 172.16.14.236/31 | 172.16.14.236 – 172.16.14.237 | 172.16.14.237 |
| 120 | 172.16.14.238/31 | 172.16.14.238 – 172.16.14.239 | 172.16.14.239 |
| 121 | 172.16.14.240/31 | 172.16.14.240 – 172.16.14.241 | 172.16.14.241 |
| 122 | 172.16.14.242/31 | 172.16.14.242 – 172.16.14.243 | 172.16.14.243 |
| 123 | 172.16.14.244/31 | 172.16.14.244 – 172.16.14.245 | 172.16.14.245 |
| 124 | 172.16.14.246/31 | 172.16.14.246 – 172.16.14.247 | 172.16.14.247 |
| 125 | 172.16.14.248/31 | 172.16.14.248 – 172.16.14.249 | 172.16.14.249 |
| 126 | 172.16.14.250/31 | 172.16.14.250 – 172.16.14.251 | 172.16.14.251 |
| 127 | 172.16.14.252/31 | 172.16.14.252 – 172.16.14.253 | 172.16.14.253 |
| 128 | 172.16.14.254/31 | 172.16.14.254 – 172.16.14.255 | 172.16.14.255 |
| 129 | 172.16.15.0/31 | 172.16.15.0 – 172.16.15.1 | 172.16.15.1 |
| 130 | 172.16.15.2/31 | 172.16.15.2 – 172.16.15.3 | 172.16.15.3 |
| 131 | 172.16.15.4/31 | 172.16.15.4 – 172.16.15.5 | 172.16.15.5 |
| 132 | 172.16.15.6/31 | 172.16.15.6 – 172.16.15.7 | 172.16.15.7 |
| 133 | 172.16.15.8/31 | 172.16.15.8 – 172.16.15.9 | 172.16.15.9 |
| 134 | 172.16.15.10/31 | 172.16.15.10 – 172.16.15.11 | 172.16.15.11 |
| 135 | 172.16.15.12/31 | 172.16.15.12 – 172.16.15.13 | 172.16.15.13 |
| 136 | 172.16.15.14/31 | 172.16.15.14 – 172.16.15.15 | 172.16.15.15 |
| 137 | 172.16.15.16/31 | 172.16.15.16 – 172.16.15.17 | 172.16.15.17 |
| 138 | 172.16.15.18/31 | 172.16.15.18 – 172.16.15.19 | 172.16.15.19 |
| 139 | 172.16.15.20/31 | 172.16.15.20 – 172.16.15.21 | 172.16.15.21 |
| 140 | 172.16.15.22/31 | 172.16.15.22 – 172.16.15.23 | 172.16.15.23 |
| 141 | 172.16.15.24/31 | 172.16.15.24 – 172.16.15.25 | 172.16.15.25 |
| 142 | 172.16.15.26/31 | 172.16.15.26 – 172.16.15.27 | 172.16.15.27 |
| 143 | 172.16.15.28/31 | 172.16.15.28 – 172.16.15.29 | 172.16.15.29 |
| 144 | 172.16.15.30/31 | 172.16.15.30 – 172.16.15.31 | 172.16.15.31 |
| 145 | 172.16.15.32/31 | 172.16.15.32 – 172.16.15.33 | 172.16.15.33 |
| 146 | 172.16.15.34/31 | 172.16.15.34 – 172.16.15.35 | 172.16.15.35 |
| 147 | 172.16.15.36/31 | 172.16.15.36 – 172.16.15.37 | 172.16.15.37 |
| 148 | 172.16.15.38/31 | 172.16.15.38 – 172.16.15.39 | 172.16.15.39 |
| 149 | 172.16.15.40/31 | 172.16.15.40 – 172.16.15.41 | 172.16.15.41 |
| 150 | 172.16.15.42/31 | 172.16.15.42 – 172.16.15.43 | 172.16.15.43 |
| 151 | 172.16.15.44/31 | 172.16.15.44 – 172.16.15.45 | 172.16.15.45 |
| 152 | 172.16.15.46/31 | 172.16.15.46 – 172.16.15.47 | 172.16.15.47 |
| 153 | 172.16.15.48/31 | 172.16.15.48 – 172.16.15.49 | 172.16.15.49 |
| 154 | 172.16.15.50/31 | 172.16.15.50 – 172.16.15.51 | 172.16.15.51 |
| 155 | 172.16.15.52/31 | 172.16.15.52 – 172.16.15.53 | 172.16.15.53 |
| 156 | 172.16.15.54/31 | 172.16.15.54 – 172.16.15.55 | 172.16.15.55 |
| 157 | 172.16.15.56/31 | 172.16.15.56 – 172.16.15.57 | 172.16.15.57 |
| 158 | 172.16.15.58/31 | 172.16.15.58 – 172.16.15.59 | 172.16.15.59 |
| 159 | 172.16.15.60/31 | 172.16.15.60 – 172.16.15.61 | 172.16.15.61 |
| 160 | 172.16.15.62/31 | 172.16.15.62 – 172.16.15.63 | 172.16.15.63 |
| 161 | 172.16.15.64/31 | 172.16.15.64 – 172.16.15.65 | 172.16.15.65 |
| 162 | 172.16.15.66/31 | 172.16.15.66 – 172.16.15.67 | 172.16.15.67 |
| 163 | 172.16.15.68/31 | 172.16.15.68 – 172.16.15.69 | 172.16.15.69 |
| 164 | 172.16.15.70/31 | 172.16.15.70 – 172.16.15.71 | 172.16.15.71 |
| 165 | 172.16.15.72/31 | 172.16.15.72 – 172.16.15.73 | 172.16.15.73 |
| 166 | 172.16.15.74/31 | 172.16.15.74 – 172.16.15.75 | 172.16.15.75 |
| 167 | 172.16.15.76/31 | 172.16.15.76 – 172.16.15.77 | 172.16.15.77 |
| 168 | 172.16.15.78/31 | 172.16.15.78 – 172.16.15.79 | 172.16.15.79 |
| 169 | 172.16.15.80/31 | 172.16.15.80 – 172.16.15.81 | 172.16.15.81 |
| 170 | 172.16.15.82/31 | 172.16.15.82 – 172.16.15.83 | 172.16.15.83 |
| 171 | 172.16.15.84/31 | 172.16.15.84 – 172.16.15.85 | 172.16.15.85 |
| 172 | 172.16.15.86/31 | 172.16.15.86 – 172.16.15.87 | 172.16.15.87 |
| 173 | 172.16.15.88/31 | 172.16.15.88 – 172.16.15.89 | 172.16.15.89 |
| 174 | 172.16.15.90/31 | 172.16.15.90 – 172.16.15.91 | 172.16.15.91 |
| 175 | 172.16.15.92/31 | 172.16.15.92 – 172.16.15.93 | 172.16.15.93 |
| 176 | 172.16.15.94/31 | 172.16.15.94 – 172.16.15.95 | 172.16.15.95 |
| 177 | 172.16.15.96/31 | 172.16.15.96 – 172.16.15.97 | 172.16.15.97 |
| 178 | 172.16.15.98/31 | 172.16.15.98 – 172.16.15.99 | 172.16.15.99 |
| 179 | 172.16.15.100/31 | 172.16.15.100 – 172.16.15.101 | 172.16.15.101 |
| 180 | 172.16.15.102/31 | 172.16.15.102 – 172.16.15.103 | 172.16.15.103 |
| 181 | 172.16.15.104/31 | 172.16.15.104 – 172.16.15.105 | 172.16.15.105 |
| 182 | 172.16.15.106/31 | 172.16.15.106 – 172.16.15.107 | 172.16.15.107 |
| 183 | 172.16.15.108/31 | 172.16.15.108 – 172.16.15.109 | 172.16.15.109 |
| 184 | 172.16.15.110/31 | 172.16.15.110 – 172.16.15.111 | 172.16.15.111 |
| 185 | 172.16.15.112/31 | 172.16.15.112 – 172.16.15.113 | 172.16.15.113 |
| 186 | 172.16.15.114/31 | 172.16.15.114 – 172.16.15.115 | 172.16.15.115 |
| 187 | 172.16.15.116/31 | 172.16.15.116 – 172.16.15.117 | 172.16.15.117 |
| 188 | 172.16.15.118/31 | 172.16.15.118 – 172.16.15.119 | 172.16.15.119 |
| 189 | 172.16.15.120/31 | 172.16.15.120 – 172.16.15.121 | 172.16.15.121 |
| 190 | 172.16.15.122/31 | 172.16.15.122 – 172.16.15.123 | 172.16.15.123 |
| 191 | 172.16.15.124/31 | 172.16.15.124 – 172.16.15.125 | 172.16.15.125 |
| 192 | 172.16.15.126/31 | 172.16.15.126 – 172.16.15.127 | 172.16.15.127 |
| 193 | 172.16.15.128/31 | 172.16.15.128 – 172.16.15.129 | 172.16.15.129 |
| 194 | 172.16.15.130/31 | 172.16.15.130 – 172.16.15.131 | 172.16.15.131 |
| 195 | 172.16.15.132/31 | 172.16.15.132 – 172.16.15.133 | 172.16.15.133 |
| 196 | 172.16.15.134/31 | 172.16.15.134 – 172.16.15.135 | 172.16.15.135 |
| 197 | 172.16.15.136/31 | 172.16.15.136 – 172.16.15.137 | 172.16.15.137 |
| 198 | 172.16.15.138/31 | 172.16.15.138 – 172.16.15.139 | 172.16.15.139 |
| 199 | 172.16.15.140/31 | 172.16.15.140 – 172.16.15.141 | 172.16.15.141 |
| 200 | 172.16.15.142/31 | 172.16.15.142 – 172.16.15.143 | 172.16.15.143 |
| 201 | 172.16.15.144/31 | 172.16.15.144 – 172.16.15.145 | 172.16.15.145 |
| 202 | 172.16.15.146/31 | 172.16.15.146 – 172.16.15.147 | 172.16.15.147 |
| 203 | 172.16.15.148/31 | 172.16.15.148 – 172.16.15.149 | 172.16.15.149 |
| 204 | 172.16.15.150/31 | 172.16.15.150 – 172.16.15.151 | 172.16.15.151 |
| 205 | 172.16.15.152/31 | 172.16.15.152 – 172.16.15.153 | 172.16.15.153 |
| 206 | 172.16.15.154/31 | 172.16.15.154 – 172.16.15.155 | 172.16.15.155 |
| 207 | 172.16.15.156/31 | 172.16.15.156 – 172.16.15.157 | 172.16.15.157 |
| 208 | 172.16.15.158/31 | 172.16.15.158 – 172.16.15.159 | 172.16.15.159 |
| 209 | 172.16.15.160/31 | 172.16.15.160 – 172.16.15.161 | 172.16.15.161 |
| 210 | 172.16.15.162/31 | 172.16.15.162 – 172.16.15.163 | 172.16.15.163 |
| 211 | 172.16.15.164/31 | 172.16.15.164 – 172.16.15.165 | 172.16.15.165 |
| 212 | 172.16.15.166/31 | 172.16.15.166 – 172.16.15.167 | 172.16.15.167 |
| 213 | 172.16.15.168/31 | 172.16.15.168 – 172.16.15.169 | 172.16.15.169 |
| 214 | 172.16.15.170/31 | 172.16.15.170 – 172.16.15.171 | 172.16.15.171 |
| 215 | 172.16.15.172/31 | 172.16.15.172 – 172.16.15.173 | 172.16.15.173 |
| 216 | 172.16.15.174/31 | 172.16.15.174 – 172.16.15.175 | 172.16.15.175 |
| 217 | 172.16.15.176/31 | 172.16.15.176 – 172.16.15.177 | 172.16.15.177 |
| 218 | 172.16.15.178/31 | 172.16.15.178 – 172.16.15.179 | 172.16.15.179 |
| 219 | 172.16.15.180/31 | 172.16.15.180 – 172.16.15.181 | 172.16.15.181 |
| 220 | 172.16.15.182/31 | 172.16.15.182 – 172.16.15.183 | 172.16.15.183 |
| 221 | 172.16.15.184/31 | 172.16.15.184 – 172.16.15.185 | 172.16.15.185 |
| 222 | 172.16.15.186/31 | 172.16.15.186 – 172.16.15.187 | 172.16.15.187 |
| 223 | 172.16.15.188/31 | 172.16.15.188 – 172.16.15.189 | 172.16.15.189 |
| 224 | 172.16.15.190/31 | 172.16.15.190 – 172.16.15.191 | 172.16.15.191 |
| 225 | 172.16.15.192/31 | 172.16.15.192 – 172.16.15.193 | 172.16.15.193 |
| 226 | 172.16.15.194/31 | 172.16.15.194 – 172.16.15.195 | 172.16.15.195 |
| 227 | 172.16.15.196/31 | 172.16.15.196 – 172.16.15.197 | 172.16.15.197 |
| 228 | 172.16.15.198/31 | 172.16.15.198 – 172.16.15.199 | 172.16.15.199 |
| 229 | 172.16.15.200/31 | 172.16.15.200 – 172.16.15.201 | 172.16.15.201 |
| 230 | 172.16.15.202/31 | 172.16.15.202 – 172.16.15.203 | 172.16.15.203 |
| 231 | 172.16.15.204/31 | 172.16.15.204 – 172.16.15.205 | 172.16.15.205 |
| 232 | 172.16.15.206/31 | 172.16.15.206 – 172.16.15.207 | 172.16.15.207 |
| 233 | 172.16.15.208/31 | 172.16.15.208 – 172.16.15.209 | 172.16.15.209 |
| 234 | 172.16.15.210/31 | 172.16.15.210 – 172.16.15.211 | 172.16.15.211 |
| 235 | 172.16.15.212/31 | 172.16.15.212 – 172.16.15.213 | 172.16.15.213 |
| 236 | 172.16.15.214/31 | 172.16.15.214 – 172.16.15.215 | 172.16.15.215 |
| 237 | 172.16.15.216/31 | 172.16.15.216 – 172.16.15.217 | 172.16.15.217 |
| 238 | 172.16.15.218/31 | 172.16.15.218 – 172.16.15.219 | 172.16.15.219 |
| 239 | 172.16.15.220/31 | 172.16.15.220 – 172.16.15.221 | 172.16.15.221 |
| 240 | 172.16.15.222/31 | 172.16.15.222 – 172.16.15.223 | 172.16.15.223 |
| 241 | 172.16.15.224/31 | 172.16.15.224 – 172.16.15.225 | 172.16.15.225 |
| 242 | 172.16.15.226/31 | 172.16.15.226 – 172.16.15.227 | 172.16.15.227 |
| 243 | 172.16.15.228/31 | 172.16.15.228 – 172.16.15.229 | 172.16.15.229 |
| 244 | 172.16.15.230/31 | 172.16.15.230 – 172.16.15.231 | 172.16.15.231 |
| 245 | 172.16.15.232/31 | 172.16.15.232 – 172.16.15.233 | 172.16.15.233 |
| 246 | 172.16.15.234/31 | 172.16.15.234 – 172.16.15.235 | 172.16.15.235 |
| 247 | 172.16.15.236/31 | 172.16.15.236 – 172.16.15.237 | 172.16.15.237 |
| 248 | 172.16.15.238/31 | 172.16.15.238 – 172.16.15.239 | 172.16.15.239 |
| 249 | 172.16.15.240/31 | 172.16.15.240 – 172.16.15.241 | 172.16.15.241 |
| 250 | 172.16.15.242/31 | 172.16.15.242 – 172.16.15.243 | 172.16.15.243 |
| 251 | 172.16.15.244/31 | 172.16.15.244 – 172.16.15.245 | 172.16.15.245 |
| 252 | 172.16.15.246/31 | 172.16.15.246 – 172.16.15.247 | 172.16.15.247 |
| 253 | 172.16.15.248/31 | 172.16.15.248 – 172.16.15.249 | 172.16.15.249 |
| 254 | 172.16.15.250/31 | 172.16.15.250 – 172.16.15.251 | 172.16.15.251 |
| 255 | 172.16.15.252/31 | 172.16.15.252 – 172.16.15.253 | 172.16.15.253 |
| 256 | 172.16.15.254/31 | 172.16.15.254 – 172.16.15.255 | 172.16.15.255 |
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.