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)10.30.0.0/19
network10.30.0.0/19
broadcast10.30.31.255
first host10.30.0.1
last host10.30.31.254
subnet mask255.255.224.0
wildcard0.0.31.255
addresses8,192
usable hosts8,190
classA
ipcalc 10.30.0.0/19
address00001010.00011110.00000000.00000000
subnet mask11111111.11111111.11100000.00000000
network00001010.00011110.00000000.00000000
broadcast00001010.00011110.00011111.11111111
green = network part, grey = host part
hex0x0a1e0000
decimal169738240
reverse dns0.0.30.10.in-addr.arpa
ipv4-mapped::ffff:a1e:0
/19 split into /30 · 2,048 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.30.0.0/30 | 10.30.0.1 – 10.30.0.2 | 10.30.0.3 |
| 2 | 10.30.0.4/30 | 10.30.0.5 – 10.30.0.6 | 10.30.0.7 |
| 3 | 10.30.0.8/30 | 10.30.0.9 – 10.30.0.10 | 10.30.0.11 |
| 4 | 10.30.0.12/30 | 10.30.0.13 – 10.30.0.14 | 10.30.0.15 |
| 5 | 10.30.0.16/30 | 10.30.0.17 – 10.30.0.18 | 10.30.0.19 |
| 6 | 10.30.0.20/30 | 10.30.0.21 – 10.30.0.22 | 10.30.0.23 |
| 7 | 10.30.0.24/30 | 10.30.0.25 – 10.30.0.26 | 10.30.0.27 |
| 8 | 10.30.0.28/30 | 10.30.0.29 – 10.30.0.30 | 10.30.0.31 |
| 9 | 10.30.0.32/30 | 10.30.0.33 – 10.30.0.34 | 10.30.0.35 |
| 10 | 10.30.0.36/30 | 10.30.0.37 – 10.30.0.38 | 10.30.0.39 |
| 11 | 10.30.0.40/30 | 10.30.0.41 – 10.30.0.42 | 10.30.0.43 |
| 12 | 10.30.0.44/30 | 10.30.0.45 – 10.30.0.46 | 10.30.0.47 |
| 13 | 10.30.0.48/30 | 10.30.0.49 – 10.30.0.50 | 10.30.0.51 |
| 14 | 10.30.0.52/30 | 10.30.0.53 – 10.30.0.54 | 10.30.0.55 |
| 15 | 10.30.0.56/30 | 10.30.0.57 – 10.30.0.58 | 10.30.0.59 |
| 16 | 10.30.0.60/30 | 10.30.0.61 – 10.30.0.62 | 10.30.0.63 |
| 17 | 10.30.0.64/30 | 10.30.0.65 – 10.30.0.66 | 10.30.0.67 |
| 18 | 10.30.0.68/30 | 10.30.0.69 – 10.30.0.70 | 10.30.0.71 |
| 19 | 10.30.0.72/30 | 10.30.0.73 – 10.30.0.74 | 10.30.0.75 |
| 20 | 10.30.0.76/30 | 10.30.0.77 – 10.30.0.78 | 10.30.0.79 |
| 21 | 10.30.0.80/30 | 10.30.0.81 – 10.30.0.82 | 10.30.0.83 |
| 22 | 10.30.0.84/30 | 10.30.0.85 – 10.30.0.86 | 10.30.0.87 |
| 23 | 10.30.0.88/30 | 10.30.0.89 – 10.30.0.90 | 10.30.0.91 |
| 24 | 10.30.0.92/30 | 10.30.0.93 – 10.30.0.94 | 10.30.0.95 |
| 25 | 10.30.0.96/30 | 10.30.0.97 – 10.30.0.98 | 10.30.0.99 |
| 26 | 10.30.0.100/30 | 10.30.0.101 – 10.30.0.102 | 10.30.0.103 |
| 27 | 10.30.0.104/30 | 10.30.0.105 – 10.30.0.106 | 10.30.0.107 |
| 28 | 10.30.0.108/30 | 10.30.0.109 – 10.30.0.110 | 10.30.0.111 |
| 29 | 10.30.0.112/30 | 10.30.0.113 – 10.30.0.114 | 10.30.0.115 |
| 30 | 10.30.0.116/30 | 10.30.0.117 – 10.30.0.118 | 10.30.0.119 |
| 31 | 10.30.0.120/30 | 10.30.0.121 – 10.30.0.122 | 10.30.0.123 |
| 32 | 10.30.0.124/30 | 10.30.0.125 – 10.30.0.126 | 10.30.0.127 |
| 33 | 10.30.0.128/30 | 10.30.0.129 – 10.30.0.130 | 10.30.0.131 |
| 34 | 10.30.0.132/30 | 10.30.0.133 – 10.30.0.134 | 10.30.0.135 |
| 35 | 10.30.0.136/30 | 10.30.0.137 – 10.30.0.138 | 10.30.0.139 |
| 36 | 10.30.0.140/30 | 10.30.0.141 – 10.30.0.142 | 10.30.0.143 |
| 37 | 10.30.0.144/30 | 10.30.0.145 – 10.30.0.146 | 10.30.0.147 |
| 38 | 10.30.0.148/30 | 10.30.0.149 – 10.30.0.150 | 10.30.0.151 |
| 39 | 10.30.0.152/30 | 10.30.0.153 – 10.30.0.154 | 10.30.0.155 |
| 40 | 10.30.0.156/30 | 10.30.0.157 – 10.30.0.158 | 10.30.0.159 |
| 41 | 10.30.0.160/30 | 10.30.0.161 – 10.30.0.162 | 10.30.0.163 |
| 42 | 10.30.0.164/30 | 10.30.0.165 – 10.30.0.166 | 10.30.0.167 |
| 43 | 10.30.0.168/30 | 10.30.0.169 – 10.30.0.170 | 10.30.0.171 |
| 44 | 10.30.0.172/30 | 10.30.0.173 – 10.30.0.174 | 10.30.0.175 |
| 45 | 10.30.0.176/30 | 10.30.0.177 – 10.30.0.178 | 10.30.0.179 |
| 46 | 10.30.0.180/30 | 10.30.0.181 – 10.30.0.182 | 10.30.0.183 |
| 47 | 10.30.0.184/30 | 10.30.0.185 – 10.30.0.186 | 10.30.0.187 |
| 48 | 10.30.0.188/30 | 10.30.0.189 – 10.30.0.190 | 10.30.0.191 |
| 49 | 10.30.0.192/30 | 10.30.0.193 – 10.30.0.194 | 10.30.0.195 |
| 50 | 10.30.0.196/30 | 10.30.0.197 – 10.30.0.198 | 10.30.0.199 |
| 51 | 10.30.0.200/30 | 10.30.0.201 – 10.30.0.202 | 10.30.0.203 |
| 52 | 10.30.0.204/30 | 10.30.0.205 – 10.30.0.206 | 10.30.0.207 |
| 53 | 10.30.0.208/30 | 10.30.0.209 – 10.30.0.210 | 10.30.0.211 |
| 54 | 10.30.0.212/30 | 10.30.0.213 – 10.30.0.214 | 10.30.0.215 |
| 55 | 10.30.0.216/30 | 10.30.0.217 – 10.30.0.218 | 10.30.0.219 |
| 56 | 10.30.0.220/30 | 10.30.0.221 – 10.30.0.222 | 10.30.0.223 |
| 57 | 10.30.0.224/30 | 10.30.0.225 – 10.30.0.226 | 10.30.0.227 |
| 58 | 10.30.0.228/30 | 10.30.0.229 – 10.30.0.230 | 10.30.0.231 |
| 59 | 10.30.0.232/30 | 10.30.0.233 – 10.30.0.234 | 10.30.0.235 |
| 60 | 10.30.0.236/30 | 10.30.0.237 – 10.30.0.238 | 10.30.0.239 |
| 61 | 10.30.0.240/30 | 10.30.0.241 – 10.30.0.242 | 10.30.0.243 |
| 62 | 10.30.0.244/30 | 10.30.0.245 – 10.30.0.246 | 10.30.0.247 |
| 63 | 10.30.0.248/30 | 10.30.0.249 – 10.30.0.250 | 10.30.0.251 |
| 64 | 10.30.0.252/30 | 10.30.0.253 – 10.30.0.254 | 10.30.0.255 |
| 65 | 10.30.1.0/30 | 10.30.1.1 – 10.30.1.2 | 10.30.1.3 |
| 66 | 10.30.1.4/30 | 10.30.1.5 – 10.30.1.6 | 10.30.1.7 |
| 67 | 10.30.1.8/30 | 10.30.1.9 – 10.30.1.10 | 10.30.1.11 |
| 68 | 10.30.1.12/30 | 10.30.1.13 – 10.30.1.14 | 10.30.1.15 |
| 69 | 10.30.1.16/30 | 10.30.1.17 – 10.30.1.18 | 10.30.1.19 |
| 70 | 10.30.1.20/30 | 10.30.1.21 – 10.30.1.22 | 10.30.1.23 |
| 71 | 10.30.1.24/30 | 10.30.1.25 – 10.30.1.26 | 10.30.1.27 |
| 72 | 10.30.1.28/30 | 10.30.1.29 – 10.30.1.30 | 10.30.1.31 |
| 73 | 10.30.1.32/30 | 10.30.1.33 – 10.30.1.34 | 10.30.1.35 |
| 74 | 10.30.1.36/30 | 10.30.1.37 – 10.30.1.38 | 10.30.1.39 |
| 75 | 10.30.1.40/30 | 10.30.1.41 – 10.30.1.42 | 10.30.1.43 |
| 76 | 10.30.1.44/30 | 10.30.1.45 – 10.30.1.46 | 10.30.1.47 |
| 77 | 10.30.1.48/30 | 10.30.1.49 – 10.30.1.50 | 10.30.1.51 |
| 78 | 10.30.1.52/30 | 10.30.1.53 – 10.30.1.54 | 10.30.1.55 |
| 79 | 10.30.1.56/30 | 10.30.1.57 – 10.30.1.58 | 10.30.1.59 |
| 80 | 10.30.1.60/30 | 10.30.1.61 – 10.30.1.62 | 10.30.1.63 |
| 81 | 10.30.1.64/30 | 10.30.1.65 – 10.30.1.66 | 10.30.1.67 |
| 82 | 10.30.1.68/30 | 10.30.1.69 – 10.30.1.70 | 10.30.1.71 |
| 83 | 10.30.1.72/30 | 10.30.1.73 – 10.30.1.74 | 10.30.1.75 |
| 84 | 10.30.1.76/30 | 10.30.1.77 – 10.30.1.78 | 10.30.1.79 |
| 85 | 10.30.1.80/30 | 10.30.1.81 – 10.30.1.82 | 10.30.1.83 |
| 86 | 10.30.1.84/30 | 10.30.1.85 – 10.30.1.86 | 10.30.1.87 |
| 87 | 10.30.1.88/30 | 10.30.1.89 – 10.30.1.90 | 10.30.1.91 |
| 88 | 10.30.1.92/30 | 10.30.1.93 – 10.30.1.94 | 10.30.1.95 |
| 89 | 10.30.1.96/30 | 10.30.1.97 – 10.30.1.98 | 10.30.1.99 |
| 90 | 10.30.1.100/30 | 10.30.1.101 – 10.30.1.102 | 10.30.1.103 |
| 91 | 10.30.1.104/30 | 10.30.1.105 – 10.30.1.106 | 10.30.1.107 |
| 92 | 10.30.1.108/30 | 10.30.1.109 – 10.30.1.110 | 10.30.1.111 |
| 93 | 10.30.1.112/30 | 10.30.1.113 – 10.30.1.114 | 10.30.1.115 |
| 94 | 10.30.1.116/30 | 10.30.1.117 – 10.30.1.118 | 10.30.1.119 |
| 95 | 10.30.1.120/30 | 10.30.1.121 – 10.30.1.122 | 10.30.1.123 |
| 96 | 10.30.1.124/30 | 10.30.1.125 – 10.30.1.126 | 10.30.1.127 |
| 97 | 10.30.1.128/30 | 10.30.1.129 – 10.30.1.130 | 10.30.1.131 |
| 98 | 10.30.1.132/30 | 10.30.1.133 – 10.30.1.134 | 10.30.1.135 |
| 99 | 10.30.1.136/30 | 10.30.1.137 – 10.30.1.138 | 10.30.1.139 |
| 100 | 10.30.1.140/30 | 10.30.1.141 – 10.30.1.142 | 10.30.1.143 |
| 101 | 10.30.1.144/30 | 10.30.1.145 – 10.30.1.146 | 10.30.1.147 |
| 102 | 10.30.1.148/30 | 10.30.1.149 – 10.30.1.150 | 10.30.1.151 |
| 103 | 10.30.1.152/30 | 10.30.1.153 – 10.30.1.154 | 10.30.1.155 |
| 104 | 10.30.1.156/30 | 10.30.1.157 – 10.30.1.158 | 10.30.1.159 |
| 105 | 10.30.1.160/30 | 10.30.1.161 – 10.30.1.162 | 10.30.1.163 |
| 106 | 10.30.1.164/30 | 10.30.1.165 – 10.30.1.166 | 10.30.1.167 |
| 107 | 10.30.1.168/30 | 10.30.1.169 – 10.30.1.170 | 10.30.1.171 |
| 108 | 10.30.1.172/30 | 10.30.1.173 – 10.30.1.174 | 10.30.1.175 |
| 109 | 10.30.1.176/30 | 10.30.1.177 – 10.30.1.178 | 10.30.1.179 |
| 110 | 10.30.1.180/30 | 10.30.1.181 – 10.30.1.182 | 10.30.1.183 |
| 111 | 10.30.1.184/30 | 10.30.1.185 – 10.30.1.186 | 10.30.1.187 |
| 112 | 10.30.1.188/30 | 10.30.1.189 – 10.30.1.190 | 10.30.1.191 |
| 113 | 10.30.1.192/30 | 10.30.1.193 – 10.30.1.194 | 10.30.1.195 |
| 114 | 10.30.1.196/30 | 10.30.1.197 – 10.30.1.198 | 10.30.1.199 |
| 115 | 10.30.1.200/30 | 10.30.1.201 – 10.30.1.202 | 10.30.1.203 |
| 116 | 10.30.1.204/30 | 10.30.1.205 – 10.30.1.206 | 10.30.1.207 |
| 117 | 10.30.1.208/30 | 10.30.1.209 – 10.30.1.210 | 10.30.1.211 |
| 118 | 10.30.1.212/30 | 10.30.1.213 – 10.30.1.214 | 10.30.1.215 |
| 119 | 10.30.1.216/30 | 10.30.1.217 – 10.30.1.218 | 10.30.1.219 |
| 120 | 10.30.1.220/30 | 10.30.1.221 – 10.30.1.222 | 10.30.1.223 |
| 121 | 10.30.1.224/30 | 10.30.1.225 – 10.30.1.226 | 10.30.1.227 |
| 122 | 10.30.1.228/30 | 10.30.1.229 – 10.30.1.230 | 10.30.1.231 |
| 123 | 10.30.1.232/30 | 10.30.1.233 – 10.30.1.234 | 10.30.1.235 |
| 124 | 10.30.1.236/30 | 10.30.1.237 – 10.30.1.238 | 10.30.1.239 |
| 125 | 10.30.1.240/30 | 10.30.1.241 – 10.30.1.242 | 10.30.1.243 |
| 126 | 10.30.1.244/30 | 10.30.1.245 – 10.30.1.246 | 10.30.1.247 |
| 127 | 10.30.1.248/30 | 10.30.1.249 – 10.30.1.250 | 10.30.1.251 |
| 128 | 10.30.1.252/30 | 10.30.1.253 – 10.30.1.254 | 10.30.1.255 |
| 129 | 10.30.2.0/30 | 10.30.2.1 – 10.30.2.2 | 10.30.2.3 |
| 130 | 10.30.2.4/30 | 10.30.2.5 – 10.30.2.6 | 10.30.2.7 |
| 131 | 10.30.2.8/30 | 10.30.2.9 – 10.30.2.10 | 10.30.2.11 |
| 132 | 10.30.2.12/30 | 10.30.2.13 – 10.30.2.14 | 10.30.2.15 |
| 133 | 10.30.2.16/30 | 10.30.2.17 – 10.30.2.18 | 10.30.2.19 |
| 134 | 10.30.2.20/30 | 10.30.2.21 – 10.30.2.22 | 10.30.2.23 |
| 135 | 10.30.2.24/30 | 10.30.2.25 – 10.30.2.26 | 10.30.2.27 |
| 136 | 10.30.2.28/30 | 10.30.2.29 – 10.30.2.30 | 10.30.2.31 |
| 137 | 10.30.2.32/30 | 10.30.2.33 – 10.30.2.34 | 10.30.2.35 |
| 138 | 10.30.2.36/30 | 10.30.2.37 – 10.30.2.38 | 10.30.2.39 |
| 139 | 10.30.2.40/30 | 10.30.2.41 – 10.30.2.42 | 10.30.2.43 |
| 140 | 10.30.2.44/30 | 10.30.2.45 – 10.30.2.46 | 10.30.2.47 |
| 141 | 10.30.2.48/30 | 10.30.2.49 – 10.30.2.50 | 10.30.2.51 |
| 142 | 10.30.2.52/30 | 10.30.2.53 – 10.30.2.54 | 10.30.2.55 |
| 143 | 10.30.2.56/30 | 10.30.2.57 – 10.30.2.58 | 10.30.2.59 |
| 144 | 10.30.2.60/30 | 10.30.2.61 – 10.30.2.62 | 10.30.2.63 |
| 145 | 10.30.2.64/30 | 10.30.2.65 – 10.30.2.66 | 10.30.2.67 |
| 146 | 10.30.2.68/30 | 10.30.2.69 – 10.30.2.70 | 10.30.2.71 |
| 147 | 10.30.2.72/30 | 10.30.2.73 – 10.30.2.74 | 10.30.2.75 |
| 148 | 10.30.2.76/30 | 10.30.2.77 – 10.30.2.78 | 10.30.2.79 |
| 149 | 10.30.2.80/30 | 10.30.2.81 – 10.30.2.82 | 10.30.2.83 |
| 150 | 10.30.2.84/30 | 10.30.2.85 – 10.30.2.86 | 10.30.2.87 |
| 151 | 10.30.2.88/30 | 10.30.2.89 – 10.30.2.90 | 10.30.2.91 |
| 152 | 10.30.2.92/30 | 10.30.2.93 – 10.30.2.94 | 10.30.2.95 |
| 153 | 10.30.2.96/30 | 10.30.2.97 – 10.30.2.98 | 10.30.2.99 |
| 154 | 10.30.2.100/30 | 10.30.2.101 – 10.30.2.102 | 10.30.2.103 |
| 155 | 10.30.2.104/30 | 10.30.2.105 – 10.30.2.106 | 10.30.2.107 |
| 156 | 10.30.2.108/30 | 10.30.2.109 – 10.30.2.110 | 10.30.2.111 |
| 157 | 10.30.2.112/30 | 10.30.2.113 – 10.30.2.114 | 10.30.2.115 |
| 158 | 10.30.2.116/30 | 10.30.2.117 – 10.30.2.118 | 10.30.2.119 |
| 159 | 10.30.2.120/30 | 10.30.2.121 – 10.30.2.122 | 10.30.2.123 |
| 160 | 10.30.2.124/30 | 10.30.2.125 – 10.30.2.126 | 10.30.2.127 |
| 161 | 10.30.2.128/30 | 10.30.2.129 – 10.30.2.130 | 10.30.2.131 |
| 162 | 10.30.2.132/30 | 10.30.2.133 – 10.30.2.134 | 10.30.2.135 |
| 163 | 10.30.2.136/30 | 10.30.2.137 – 10.30.2.138 | 10.30.2.139 |
| 164 | 10.30.2.140/30 | 10.30.2.141 – 10.30.2.142 | 10.30.2.143 |
| 165 | 10.30.2.144/30 | 10.30.2.145 – 10.30.2.146 | 10.30.2.147 |
| 166 | 10.30.2.148/30 | 10.30.2.149 – 10.30.2.150 | 10.30.2.151 |
| 167 | 10.30.2.152/30 | 10.30.2.153 – 10.30.2.154 | 10.30.2.155 |
| 168 | 10.30.2.156/30 | 10.30.2.157 – 10.30.2.158 | 10.30.2.159 |
| 169 | 10.30.2.160/30 | 10.30.2.161 – 10.30.2.162 | 10.30.2.163 |
| 170 | 10.30.2.164/30 | 10.30.2.165 – 10.30.2.166 | 10.30.2.167 |
| 171 | 10.30.2.168/30 | 10.30.2.169 – 10.30.2.170 | 10.30.2.171 |
| 172 | 10.30.2.172/30 | 10.30.2.173 – 10.30.2.174 | 10.30.2.175 |
| 173 | 10.30.2.176/30 | 10.30.2.177 – 10.30.2.178 | 10.30.2.179 |
| 174 | 10.30.2.180/30 | 10.30.2.181 – 10.30.2.182 | 10.30.2.183 |
| 175 | 10.30.2.184/30 | 10.30.2.185 – 10.30.2.186 | 10.30.2.187 |
| 176 | 10.30.2.188/30 | 10.30.2.189 – 10.30.2.190 | 10.30.2.191 |
| 177 | 10.30.2.192/30 | 10.30.2.193 – 10.30.2.194 | 10.30.2.195 |
| 178 | 10.30.2.196/30 | 10.30.2.197 – 10.30.2.198 | 10.30.2.199 |
| 179 | 10.30.2.200/30 | 10.30.2.201 – 10.30.2.202 | 10.30.2.203 |
| 180 | 10.30.2.204/30 | 10.30.2.205 – 10.30.2.206 | 10.30.2.207 |
| 181 | 10.30.2.208/30 | 10.30.2.209 – 10.30.2.210 | 10.30.2.211 |
| 182 | 10.30.2.212/30 | 10.30.2.213 – 10.30.2.214 | 10.30.2.215 |
| 183 | 10.30.2.216/30 | 10.30.2.217 – 10.30.2.218 | 10.30.2.219 |
| 184 | 10.30.2.220/30 | 10.30.2.221 – 10.30.2.222 | 10.30.2.223 |
| 185 | 10.30.2.224/30 | 10.30.2.225 – 10.30.2.226 | 10.30.2.227 |
| 186 | 10.30.2.228/30 | 10.30.2.229 – 10.30.2.230 | 10.30.2.231 |
| 187 | 10.30.2.232/30 | 10.30.2.233 – 10.30.2.234 | 10.30.2.235 |
| 188 | 10.30.2.236/30 | 10.30.2.237 – 10.30.2.238 | 10.30.2.239 |
| 189 | 10.30.2.240/30 | 10.30.2.241 – 10.30.2.242 | 10.30.2.243 |
| 190 | 10.30.2.244/30 | 10.30.2.245 – 10.30.2.246 | 10.30.2.247 |
| 191 | 10.30.2.248/30 | 10.30.2.249 – 10.30.2.250 | 10.30.2.251 |
| 192 | 10.30.2.252/30 | 10.30.2.253 – 10.30.2.254 | 10.30.2.255 |
| 193 | 10.30.3.0/30 | 10.30.3.1 – 10.30.3.2 | 10.30.3.3 |
| 194 | 10.30.3.4/30 | 10.30.3.5 – 10.30.3.6 | 10.30.3.7 |
| 195 | 10.30.3.8/30 | 10.30.3.9 – 10.30.3.10 | 10.30.3.11 |
| 196 | 10.30.3.12/30 | 10.30.3.13 – 10.30.3.14 | 10.30.3.15 |
| 197 | 10.30.3.16/30 | 10.30.3.17 – 10.30.3.18 | 10.30.3.19 |
| 198 | 10.30.3.20/30 | 10.30.3.21 – 10.30.3.22 | 10.30.3.23 |
| 199 | 10.30.3.24/30 | 10.30.3.25 – 10.30.3.26 | 10.30.3.27 |
| 200 | 10.30.3.28/30 | 10.30.3.29 – 10.30.3.30 | 10.30.3.31 |
| 201 | 10.30.3.32/30 | 10.30.3.33 – 10.30.3.34 | 10.30.3.35 |
| 202 | 10.30.3.36/30 | 10.30.3.37 – 10.30.3.38 | 10.30.3.39 |
| 203 | 10.30.3.40/30 | 10.30.3.41 – 10.30.3.42 | 10.30.3.43 |
| 204 | 10.30.3.44/30 | 10.30.3.45 – 10.30.3.46 | 10.30.3.47 |
| 205 | 10.30.3.48/30 | 10.30.3.49 – 10.30.3.50 | 10.30.3.51 |
| 206 | 10.30.3.52/30 | 10.30.3.53 – 10.30.3.54 | 10.30.3.55 |
| 207 | 10.30.3.56/30 | 10.30.3.57 – 10.30.3.58 | 10.30.3.59 |
| 208 | 10.30.3.60/30 | 10.30.3.61 – 10.30.3.62 | 10.30.3.63 |
| 209 | 10.30.3.64/30 | 10.30.3.65 – 10.30.3.66 | 10.30.3.67 |
| 210 | 10.30.3.68/30 | 10.30.3.69 – 10.30.3.70 | 10.30.3.71 |
| 211 | 10.30.3.72/30 | 10.30.3.73 – 10.30.3.74 | 10.30.3.75 |
| 212 | 10.30.3.76/30 | 10.30.3.77 – 10.30.3.78 | 10.30.3.79 |
| 213 | 10.30.3.80/30 | 10.30.3.81 – 10.30.3.82 | 10.30.3.83 |
| 214 | 10.30.3.84/30 | 10.30.3.85 – 10.30.3.86 | 10.30.3.87 |
| 215 | 10.30.3.88/30 | 10.30.3.89 – 10.30.3.90 | 10.30.3.91 |
| 216 | 10.30.3.92/30 | 10.30.3.93 – 10.30.3.94 | 10.30.3.95 |
| 217 | 10.30.3.96/30 | 10.30.3.97 – 10.30.3.98 | 10.30.3.99 |
| 218 | 10.30.3.100/30 | 10.30.3.101 – 10.30.3.102 | 10.30.3.103 |
| 219 | 10.30.3.104/30 | 10.30.3.105 – 10.30.3.106 | 10.30.3.107 |
| 220 | 10.30.3.108/30 | 10.30.3.109 – 10.30.3.110 | 10.30.3.111 |
| 221 | 10.30.3.112/30 | 10.30.3.113 – 10.30.3.114 | 10.30.3.115 |
| 222 | 10.30.3.116/30 | 10.30.3.117 – 10.30.3.118 | 10.30.3.119 |
| 223 | 10.30.3.120/30 | 10.30.3.121 – 10.30.3.122 | 10.30.3.123 |
| 224 | 10.30.3.124/30 | 10.30.3.125 – 10.30.3.126 | 10.30.3.127 |
| 225 | 10.30.3.128/30 | 10.30.3.129 – 10.30.3.130 | 10.30.3.131 |
| 226 | 10.30.3.132/30 | 10.30.3.133 – 10.30.3.134 | 10.30.3.135 |
| 227 | 10.30.3.136/30 | 10.30.3.137 – 10.30.3.138 | 10.30.3.139 |
| 228 | 10.30.3.140/30 | 10.30.3.141 – 10.30.3.142 | 10.30.3.143 |
| 229 | 10.30.3.144/30 | 10.30.3.145 – 10.30.3.146 | 10.30.3.147 |
| 230 | 10.30.3.148/30 | 10.30.3.149 – 10.30.3.150 | 10.30.3.151 |
| 231 | 10.30.3.152/30 | 10.30.3.153 – 10.30.3.154 | 10.30.3.155 |
| 232 | 10.30.3.156/30 | 10.30.3.157 – 10.30.3.158 | 10.30.3.159 |
| 233 | 10.30.3.160/30 | 10.30.3.161 – 10.30.3.162 | 10.30.3.163 |
| 234 | 10.30.3.164/30 | 10.30.3.165 – 10.30.3.166 | 10.30.3.167 |
| 235 | 10.30.3.168/30 | 10.30.3.169 – 10.30.3.170 | 10.30.3.171 |
| 236 | 10.30.3.172/30 | 10.30.3.173 – 10.30.3.174 | 10.30.3.175 |
| 237 | 10.30.3.176/30 | 10.30.3.177 – 10.30.3.178 | 10.30.3.179 |
| 238 | 10.30.3.180/30 | 10.30.3.181 – 10.30.3.182 | 10.30.3.183 |
| 239 | 10.30.3.184/30 | 10.30.3.185 – 10.30.3.186 | 10.30.3.187 |
| 240 | 10.30.3.188/30 | 10.30.3.189 – 10.30.3.190 | 10.30.3.191 |
| 241 | 10.30.3.192/30 | 10.30.3.193 – 10.30.3.194 | 10.30.3.195 |
| 242 | 10.30.3.196/30 | 10.30.3.197 – 10.30.3.198 | 10.30.3.199 |
| 243 | 10.30.3.200/30 | 10.30.3.201 – 10.30.3.202 | 10.30.3.203 |
| 244 | 10.30.3.204/30 | 10.30.3.205 – 10.30.3.206 | 10.30.3.207 |
| 245 | 10.30.3.208/30 | 10.30.3.209 – 10.30.3.210 | 10.30.3.211 |
| 246 | 10.30.3.212/30 | 10.30.3.213 – 10.30.3.214 | 10.30.3.215 |
| 247 | 10.30.3.216/30 | 10.30.3.217 – 10.30.3.218 | 10.30.3.219 |
| 248 | 10.30.3.220/30 | 10.30.3.221 – 10.30.3.222 | 10.30.3.223 |
| 249 | 10.30.3.224/30 | 10.30.3.225 – 10.30.3.226 | 10.30.3.227 |
| 250 | 10.30.3.228/30 | 10.30.3.229 – 10.30.3.230 | 10.30.3.231 |
| 251 | 10.30.3.232/30 | 10.30.3.233 – 10.30.3.234 | 10.30.3.235 |
| 252 | 10.30.3.236/30 | 10.30.3.237 – 10.30.3.238 | 10.30.3.239 |
| 253 | 10.30.3.240/30 | 10.30.3.241 – 10.30.3.242 | 10.30.3.243 |
| 254 | 10.30.3.244/30 | 10.30.3.245 – 10.30.3.246 | 10.30.3.247 |
| 255 | 10.30.3.248/30 | 10.30.3.249 – 10.30.3.250 | 10.30.3.251 |
| 256 | 10.30.3.252/30 | 10.30.3.253 – 10.30.3.254 | 10.30.3.255 |
showing 256 of 2,048
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 /19 |
|---|---|---|---|---|
| /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 | 1 |
| /20 | 255.255.240.0 | 4,096 | 4,094 | 2 split → |
| /21 | 255.255.248.0 | 2,048 | 2,046 | 4 split → |
| /22 | 255.255.252.0 | 1,024 | 1,022 | 8 split → |
| /23 | 255.255.254.0 | 512 | 510 | 16 split → |
| /24 | 255.255.255.0 | 256 | 254 | 32 split → |
| /25 | 255.255.255.128 | 128 | 126 | 64 split → |
| /26 | 255.255.255.192 | 64 | 62 | 128 split → |
| /27 | 255.255.255.224 | 32 | 30 | 256 split → |
| /28 | 255.255.255.240 | 16 | 14 | 512 split → |
| /29 | 255.255.255.248 | 8 | 6 | 1,024 split → |
| /30 | 255.255.255.252 | 4 | 2 | 2,048 split → |
| /31 | 255.255.255.254 | 2 | 2 | 4,096 split → |
| /32 | 255.255.255.255 | 1 | 1 | 8,192 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.