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)10.30.192.0/18
network10.30.192.0/18
broadcast10.30.255.255
first host10.30.192.1
last host10.30.255.254
subnet mask255.255.192.0
wildcard0.0.63.255
addresses16,384
usable hosts16,382
classA
ipcalc 10.30.192.0/18
address00001010.00011110.11000000.00000000
subnet mask11111111.11111111.11000000.00000000
network00001010.00011110.11000000.00000000
broadcast00001010.00011110.11111111.11111111
green = network part, grey = host part
hex0x0a1ec000
decimal169787392
reverse dns0.192.30.10.in-addr.arpa
ipv4-mapped::ffff:a1e:c000
/18 split into /28 · 1,024 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.30.192.0/28 | 10.30.192.1 – 10.30.192.14 | 10.30.192.15 |
| 2 | 10.30.192.16/28 | 10.30.192.17 – 10.30.192.30 | 10.30.192.31 |
| 3 | 10.30.192.32/28 | 10.30.192.33 – 10.30.192.46 | 10.30.192.47 |
| 4 | 10.30.192.48/28 | 10.30.192.49 – 10.30.192.62 | 10.30.192.63 |
| 5 | 10.30.192.64/28 | 10.30.192.65 – 10.30.192.78 | 10.30.192.79 |
| 6 | 10.30.192.80/28 | 10.30.192.81 – 10.30.192.94 | 10.30.192.95 |
| 7 | 10.30.192.96/28 | 10.30.192.97 – 10.30.192.110 | 10.30.192.111 |
| 8 | 10.30.192.112/28 | 10.30.192.113 – 10.30.192.126 | 10.30.192.127 |
| 9 | 10.30.192.128/28 | 10.30.192.129 – 10.30.192.142 | 10.30.192.143 |
| 10 | 10.30.192.144/28 | 10.30.192.145 – 10.30.192.158 | 10.30.192.159 |
| 11 | 10.30.192.160/28 | 10.30.192.161 – 10.30.192.174 | 10.30.192.175 |
| 12 | 10.30.192.176/28 | 10.30.192.177 – 10.30.192.190 | 10.30.192.191 |
| 13 | 10.30.192.192/28 | 10.30.192.193 – 10.30.192.206 | 10.30.192.207 |
| 14 | 10.30.192.208/28 | 10.30.192.209 – 10.30.192.222 | 10.30.192.223 |
| 15 | 10.30.192.224/28 | 10.30.192.225 – 10.30.192.238 | 10.30.192.239 |
| 16 | 10.30.192.240/28 | 10.30.192.241 – 10.30.192.254 | 10.30.192.255 |
| 17 | 10.30.193.0/28 | 10.30.193.1 – 10.30.193.14 | 10.30.193.15 |
| 18 | 10.30.193.16/28 | 10.30.193.17 – 10.30.193.30 | 10.30.193.31 |
| 19 | 10.30.193.32/28 | 10.30.193.33 – 10.30.193.46 | 10.30.193.47 |
| 20 | 10.30.193.48/28 | 10.30.193.49 – 10.30.193.62 | 10.30.193.63 |
| 21 | 10.30.193.64/28 | 10.30.193.65 – 10.30.193.78 | 10.30.193.79 |
| 22 | 10.30.193.80/28 | 10.30.193.81 – 10.30.193.94 | 10.30.193.95 |
| 23 | 10.30.193.96/28 | 10.30.193.97 – 10.30.193.110 | 10.30.193.111 |
| 24 | 10.30.193.112/28 | 10.30.193.113 – 10.30.193.126 | 10.30.193.127 |
| 25 | 10.30.193.128/28 | 10.30.193.129 – 10.30.193.142 | 10.30.193.143 |
| 26 | 10.30.193.144/28 | 10.30.193.145 – 10.30.193.158 | 10.30.193.159 |
| 27 | 10.30.193.160/28 | 10.30.193.161 – 10.30.193.174 | 10.30.193.175 |
| 28 | 10.30.193.176/28 | 10.30.193.177 – 10.30.193.190 | 10.30.193.191 |
| 29 | 10.30.193.192/28 | 10.30.193.193 – 10.30.193.206 | 10.30.193.207 |
| 30 | 10.30.193.208/28 | 10.30.193.209 – 10.30.193.222 | 10.30.193.223 |
| 31 | 10.30.193.224/28 | 10.30.193.225 – 10.30.193.238 | 10.30.193.239 |
| 32 | 10.30.193.240/28 | 10.30.193.241 – 10.30.193.254 | 10.30.193.255 |
| 33 | 10.30.194.0/28 | 10.30.194.1 – 10.30.194.14 | 10.30.194.15 |
| 34 | 10.30.194.16/28 | 10.30.194.17 – 10.30.194.30 | 10.30.194.31 |
| 35 | 10.30.194.32/28 | 10.30.194.33 – 10.30.194.46 | 10.30.194.47 |
| 36 | 10.30.194.48/28 | 10.30.194.49 – 10.30.194.62 | 10.30.194.63 |
| 37 | 10.30.194.64/28 | 10.30.194.65 – 10.30.194.78 | 10.30.194.79 |
| 38 | 10.30.194.80/28 | 10.30.194.81 – 10.30.194.94 | 10.30.194.95 |
| 39 | 10.30.194.96/28 | 10.30.194.97 – 10.30.194.110 | 10.30.194.111 |
| 40 | 10.30.194.112/28 | 10.30.194.113 – 10.30.194.126 | 10.30.194.127 |
| 41 | 10.30.194.128/28 | 10.30.194.129 – 10.30.194.142 | 10.30.194.143 |
| 42 | 10.30.194.144/28 | 10.30.194.145 – 10.30.194.158 | 10.30.194.159 |
| 43 | 10.30.194.160/28 | 10.30.194.161 – 10.30.194.174 | 10.30.194.175 |
| 44 | 10.30.194.176/28 | 10.30.194.177 – 10.30.194.190 | 10.30.194.191 |
| 45 | 10.30.194.192/28 | 10.30.194.193 – 10.30.194.206 | 10.30.194.207 |
| 46 | 10.30.194.208/28 | 10.30.194.209 – 10.30.194.222 | 10.30.194.223 |
| 47 | 10.30.194.224/28 | 10.30.194.225 – 10.30.194.238 | 10.30.194.239 |
| 48 | 10.30.194.240/28 | 10.30.194.241 – 10.30.194.254 | 10.30.194.255 |
| 49 | 10.30.195.0/28 | 10.30.195.1 – 10.30.195.14 | 10.30.195.15 |
| 50 | 10.30.195.16/28 | 10.30.195.17 – 10.30.195.30 | 10.30.195.31 |
| 51 | 10.30.195.32/28 | 10.30.195.33 – 10.30.195.46 | 10.30.195.47 |
| 52 | 10.30.195.48/28 | 10.30.195.49 – 10.30.195.62 | 10.30.195.63 |
| 53 | 10.30.195.64/28 | 10.30.195.65 – 10.30.195.78 | 10.30.195.79 |
| 54 | 10.30.195.80/28 | 10.30.195.81 – 10.30.195.94 | 10.30.195.95 |
| 55 | 10.30.195.96/28 | 10.30.195.97 – 10.30.195.110 | 10.30.195.111 |
| 56 | 10.30.195.112/28 | 10.30.195.113 – 10.30.195.126 | 10.30.195.127 |
| 57 | 10.30.195.128/28 | 10.30.195.129 – 10.30.195.142 | 10.30.195.143 |
| 58 | 10.30.195.144/28 | 10.30.195.145 – 10.30.195.158 | 10.30.195.159 |
| 59 | 10.30.195.160/28 | 10.30.195.161 – 10.30.195.174 | 10.30.195.175 |
| 60 | 10.30.195.176/28 | 10.30.195.177 – 10.30.195.190 | 10.30.195.191 |
| 61 | 10.30.195.192/28 | 10.30.195.193 – 10.30.195.206 | 10.30.195.207 |
| 62 | 10.30.195.208/28 | 10.30.195.209 – 10.30.195.222 | 10.30.195.223 |
| 63 | 10.30.195.224/28 | 10.30.195.225 – 10.30.195.238 | 10.30.195.239 |
| 64 | 10.30.195.240/28 | 10.30.195.241 – 10.30.195.254 | 10.30.195.255 |
| 65 | 10.30.196.0/28 | 10.30.196.1 – 10.30.196.14 | 10.30.196.15 |
| 66 | 10.30.196.16/28 | 10.30.196.17 – 10.30.196.30 | 10.30.196.31 |
| 67 | 10.30.196.32/28 | 10.30.196.33 – 10.30.196.46 | 10.30.196.47 |
| 68 | 10.30.196.48/28 | 10.30.196.49 – 10.30.196.62 | 10.30.196.63 |
| 69 | 10.30.196.64/28 | 10.30.196.65 – 10.30.196.78 | 10.30.196.79 |
| 70 | 10.30.196.80/28 | 10.30.196.81 – 10.30.196.94 | 10.30.196.95 |
| 71 | 10.30.196.96/28 | 10.30.196.97 – 10.30.196.110 | 10.30.196.111 |
| 72 | 10.30.196.112/28 | 10.30.196.113 – 10.30.196.126 | 10.30.196.127 |
| 73 | 10.30.196.128/28 | 10.30.196.129 – 10.30.196.142 | 10.30.196.143 |
| 74 | 10.30.196.144/28 | 10.30.196.145 – 10.30.196.158 | 10.30.196.159 |
| 75 | 10.30.196.160/28 | 10.30.196.161 – 10.30.196.174 | 10.30.196.175 |
| 76 | 10.30.196.176/28 | 10.30.196.177 – 10.30.196.190 | 10.30.196.191 |
| 77 | 10.30.196.192/28 | 10.30.196.193 – 10.30.196.206 | 10.30.196.207 |
| 78 | 10.30.196.208/28 | 10.30.196.209 – 10.30.196.222 | 10.30.196.223 |
| 79 | 10.30.196.224/28 | 10.30.196.225 – 10.30.196.238 | 10.30.196.239 |
| 80 | 10.30.196.240/28 | 10.30.196.241 – 10.30.196.254 | 10.30.196.255 |
| 81 | 10.30.197.0/28 | 10.30.197.1 – 10.30.197.14 | 10.30.197.15 |
| 82 | 10.30.197.16/28 | 10.30.197.17 – 10.30.197.30 | 10.30.197.31 |
| 83 | 10.30.197.32/28 | 10.30.197.33 – 10.30.197.46 | 10.30.197.47 |
| 84 | 10.30.197.48/28 | 10.30.197.49 – 10.30.197.62 | 10.30.197.63 |
| 85 | 10.30.197.64/28 | 10.30.197.65 – 10.30.197.78 | 10.30.197.79 |
| 86 | 10.30.197.80/28 | 10.30.197.81 – 10.30.197.94 | 10.30.197.95 |
| 87 | 10.30.197.96/28 | 10.30.197.97 – 10.30.197.110 | 10.30.197.111 |
| 88 | 10.30.197.112/28 | 10.30.197.113 – 10.30.197.126 | 10.30.197.127 |
| 89 | 10.30.197.128/28 | 10.30.197.129 – 10.30.197.142 | 10.30.197.143 |
| 90 | 10.30.197.144/28 | 10.30.197.145 – 10.30.197.158 | 10.30.197.159 |
| 91 | 10.30.197.160/28 | 10.30.197.161 – 10.30.197.174 | 10.30.197.175 |
| 92 | 10.30.197.176/28 | 10.30.197.177 – 10.30.197.190 | 10.30.197.191 |
| 93 | 10.30.197.192/28 | 10.30.197.193 – 10.30.197.206 | 10.30.197.207 |
| 94 | 10.30.197.208/28 | 10.30.197.209 – 10.30.197.222 | 10.30.197.223 |
| 95 | 10.30.197.224/28 | 10.30.197.225 – 10.30.197.238 | 10.30.197.239 |
| 96 | 10.30.197.240/28 | 10.30.197.241 – 10.30.197.254 | 10.30.197.255 |
| 97 | 10.30.198.0/28 | 10.30.198.1 – 10.30.198.14 | 10.30.198.15 |
| 98 | 10.30.198.16/28 | 10.30.198.17 – 10.30.198.30 | 10.30.198.31 |
| 99 | 10.30.198.32/28 | 10.30.198.33 – 10.30.198.46 | 10.30.198.47 |
| 100 | 10.30.198.48/28 | 10.30.198.49 – 10.30.198.62 | 10.30.198.63 |
| 101 | 10.30.198.64/28 | 10.30.198.65 – 10.30.198.78 | 10.30.198.79 |
| 102 | 10.30.198.80/28 | 10.30.198.81 – 10.30.198.94 | 10.30.198.95 |
| 103 | 10.30.198.96/28 | 10.30.198.97 – 10.30.198.110 | 10.30.198.111 |
| 104 | 10.30.198.112/28 | 10.30.198.113 – 10.30.198.126 | 10.30.198.127 |
| 105 | 10.30.198.128/28 | 10.30.198.129 – 10.30.198.142 | 10.30.198.143 |
| 106 | 10.30.198.144/28 | 10.30.198.145 – 10.30.198.158 | 10.30.198.159 |
| 107 | 10.30.198.160/28 | 10.30.198.161 – 10.30.198.174 | 10.30.198.175 |
| 108 | 10.30.198.176/28 | 10.30.198.177 – 10.30.198.190 | 10.30.198.191 |
| 109 | 10.30.198.192/28 | 10.30.198.193 – 10.30.198.206 | 10.30.198.207 |
| 110 | 10.30.198.208/28 | 10.30.198.209 – 10.30.198.222 | 10.30.198.223 |
| 111 | 10.30.198.224/28 | 10.30.198.225 – 10.30.198.238 | 10.30.198.239 |
| 112 | 10.30.198.240/28 | 10.30.198.241 – 10.30.198.254 | 10.30.198.255 |
| 113 | 10.30.199.0/28 | 10.30.199.1 – 10.30.199.14 | 10.30.199.15 |
| 114 | 10.30.199.16/28 | 10.30.199.17 – 10.30.199.30 | 10.30.199.31 |
| 115 | 10.30.199.32/28 | 10.30.199.33 – 10.30.199.46 | 10.30.199.47 |
| 116 | 10.30.199.48/28 | 10.30.199.49 – 10.30.199.62 | 10.30.199.63 |
| 117 | 10.30.199.64/28 | 10.30.199.65 – 10.30.199.78 | 10.30.199.79 |
| 118 | 10.30.199.80/28 | 10.30.199.81 – 10.30.199.94 | 10.30.199.95 |
| 119 | 10.30.199.96/28 | 10.30.199.97 – 10.30.199.110 | 10.30.199.111 |
| 120 | 10.30.199.112/28 | 10.30.199.113 – 10.30.199.126 | 10.30.199.127 |
| 121 | 10.30.199.128/28 | 10.30.199.129 – 10.30.199.142 | 10.30.199.143 |
| 122 | 10.30.199.144/28 | 10.30.199.145 – 10.30.199.158 | 10.30.199.159 |
| 123 | 10.30.199.160/28 | 10.30.199.161 – 10.30.199.174 | 10.30.199.175 |
| 124 | 10.30.199.176/28 | 10.30.199.177 – 10.30.199.190 | 10.30.199.191 |
| 125 | 10.30.199.192/28 | 10.30.199.193 – 10.30.199.206 | 10.30.199.207 |
| 126 | 10.30.199.208/28 | 10.30.199.209 – 10.30.199.222 | 10.30.199.223 |
| 127 | 10.30.199.224/28 | 10.30.199.225 – 10.30.199.238 | 10.30.199.239 |
| 128 | 10.30.199.240/28 | 10.30.199.241 – 10.30.199.254 | 10.30.199.255 |
| 129 | 10.30.200.0/28 | 10.30.200.1 – 10.30.200.14 | 10.30.200.15 |
| 130 | 10.30.200.16/28 | 10.30.200.17 – 10.30.200.30 | 10.30.200.31 |
| 131 | 10.30.200.32/28 | 10.30.200.33 – 10.30.200.46 | 10.30.200.47 |
| 132 | 10.30.200.48/28 | 10.30.200.49 – 10.30.200.62 | 10.30.200.63 |
| 133 | 10.30.200.64/28 | 10.30.200.65 – 10.30.200.78 | 10.30.200.79 |
| 134 | 10.30.200.80/28 | 10.30.200.81 – 10.30.200.94 | 10.30.200.95 |
| 135 | 10.30.200.96/28 | 10.30.200.97 – 10.30.200.110 | 10.30.200.111 |
| 136 | 10.30.200.112/28 | 10.30.200.113 – 10.30.200.126 | 10.30.200.127 |
| 137 | 10.30.200.128/28 | 10.30.200.129 – 10.30.200.142 | 10.30.200.143 |
| 138 | 10.30.200.144/28 | 10.30.200.145 – 10.30.200.158 | 10.30.200.159 |
| 139 | 10.30.200.160/28 | 10.30.200.161 – 10.30.200.174 | 10.30.200.175 |
| 140 | 10.30.200.176/28 | 10.30.200.177 – 10.30.200.190 | 10.30.200.191 |
| 141 | 10.30.200.192/28 | 10.30.200.193 – 10.30.200.206 | 10.30.200.207 |
| 142 | 10.30.200.208/28 | 10.30.200.209 – 10.30.200.222 | 10.30.200.223 |
| 143 | 10.30.200.224/28 | 10.30.200.225 – 10.30.200.238 | 10.30.200.239 |
| 144 | 10.30.200.240/28 | 10.30.200.241 – 10.30.200.254 | 10.30.200.255 |
| 145 | 10.30.201.0/28 | 10.30.201.1 – 10.30.201.14 | 10.30.201.15 |
| 146 | 10.30.201.16/28 | 10.30.201.17 – 10.30.201.30 | 10.30.201.31 |
| 147 | 10.30.201.32/28 | 10.30.201.33 – 10.30.201.46 | 10.30.201.47 |
| 148 | 10.30.201.48/28 | 10.30.201.49 – 10.30.201.62 | 10.30.201.63 |
| 149 | 10.30.201.64/28 | 10.30.201.65 – 10.30.201.78 | 10.30.201.79 |
| 150 | 10.30.201.80/28 | 10.30.201.81 – 10.30.201.94 | 10.30.201.95 |
| 151 | 10.30.201.96/28 | 10.30.201.97 – 10.30.201.110 | 10.30.201.111 |
| 152 | 10.30.201.112/28 | 10.30.201.113 – 10.30.201.126 | 10.30.201.127 |
| 153 | 10.30.201.128/28 | 10.30.201.129 – 10.30.201.142 | 10.30.201.143 |
| 154 | 10.30.201.144/28 | 10.30.201.145 – 10.30.201.158 | 10.30.201.159 |
| 155 | 10.30.201.160/28 | 10.30.201.161 – 10.30.201.174 | 10.30.201.175 |
| 156 | 10.30.201.176/28 | 10.30.201.177 – 10.30.201.190 | 10.30.201.191 |
| 157 | 10.30.201.192/28 | 10.30.201.193 – 10.30.201.206 | 10.30.201.207 |
| 158 | 10.30.201.208/28 | 10.30.201.209 – 10.30.201.222 | 10.30.201.223 |
| 159 | 10.30.201.224/28 | 10.30.201.225 – 10.30.201.238 | 10.30.201.239 |
| 160 | 10.30.201.240/28 | 10.30.201.241 – 10.30.201.254 | 10.30.201.255 |
| 161 | 10.30.202.0/28 | 10.30.202.1 – 10.30.202.14 | 10.30.202.15 |
| 162 | 10.30.202.16/28 | 10.30.202.17 – 10.30.202.30 | 10.30.202.31 |
| 163 | 10.30.202.32/28 | 10.30.202.33 – 10.30.202.46 | 10.30.202.47 |
| 164 | 10.30.202.48/28 | 10.30.202.49 – 10.30.202.62 | 10.30.202.63 |
| 165 | 10.30.202.64/28 | 10.30.202.65 – 10.30.202.78 | 10.30.202.79 |
| 166 | 10.30.202.80/28 | 10.30.202.81 – 10.30.202.94 | 10.30.202.95 |
| 167 | 10.30.202.96/28 | 10.30.202.97 – 10.30.202.110 | 10.30.202.111 |
| 168 | 10.30.202.112/28 | 10.30.202.113 – 10.30.202.126 | 10.30.202.127 |
| 169 | 10.30.202.128/28 | 10.30.202.129 – 10.30.202.142 | 10.30.202.143 |
| 170 | 10.30.202.144/28 | 10.30.202.145 – 10.30.202.158 | 10.30.202.159 |
| 171 | 10.30.202.160/28 | 10.30.202.161 – 10.30.202.174 | 10.30.202.175 |
| 172 | 10.30.202.176/28 | 10.30.202.177 – 10.30.202.190 | 10.30.202.191 |
| 173 | 10.30.202.192/28 | 10.30.202.193 – 10.30.202.206 | 10.30.202.207 |
| 174 | 10.30.202.208/28 | 10.30.202.209 – 10.30.202.222 | 10.30.202.223 |
| 175 | 10.30.202.224/28 | 10.30.202.225 – 10.30.202.238 | 10.30.202.239 |
| 176 | 10.30.202.240/28 | 10.30.202.241 – 10.30.202.254 | 10.30.202.255 |
| 177 | 10.30.203.0/28 | 10.30.203.1 – 10.30.203.14 | 10.30.203.15 |
| 178 | 10.30.203.16/28 | 10.30.203.17 – 10.30.203.30 | 10.30.203.31 |
| 179 | 10.30.203.32/28 | 10.30.203.33 – 10.30.203.46 | 10.30.203.47 |
| 180 | 10.30.203.48/28 | 10.30.203.49 – 10.30.203.62 | 10.30.203.63 |
| 181 | 10.30.203.64/28 | 10.30.203.65 – 10.30.203.78 | 10.30.203.79 |
| 182 | 10.30.203.80/28 | 10.30.203.81 – 10.30.203.94 | 10.30.203.95 |
| 183 | 10.30.203.96/28 | 10.30.203.97 – 10.30.203.110 | 10.30.203.111 |
| 184 | 10.30.203.112/28 | 10.30.203.113 – 10.30.203.126 | 10.30.203.127 |
| 185 | 10.30.203.128/28 | 10.30.203.129 – 10.30.203.142 | 10.30.203.143 |
| 186 | 10.30.203.144/28 | 10.30.203.145 – 10.30.203.158 | 10.30.203.159 |
| 187 | 10.30.203.160/28 | 10.30.203.161 – 10.30.203.174 | 10.30.203.175 |
| 188 | 10.30.203.176/28 | 10.30.203.177 – 10.30.203.190 | 10.30.203.191 |
| 189 | 10.30.203.192/28 | 10.30.203.193 – 10.30.203.206 | 10.30.203.207 |
| 190 | 10.30.203.208/28 | 10.30.203.209 – 10.30.203.222 | 10.30.203.223 |
| 191 | 10.30.203.224/28 | 10.30.203.225 – 10.30.203.238 | 10.30.203.239 |
| 192 | 10.30.203.240/28 | 10.30.203.241 – 10.30.203.254 | 10.30.203.255 |
| 193 | 10.30.204.0/28 | 10.30.204.1 – 10.30.204.14 | 10.30.204.15 |
| 194 | 10.30.204.16/28 | 10.30.204.17 – 10.30.204.30 | 10.30.204.31 |
| 195 | 10.30.204.32/28 | 10.30.204.33 – 10.30.204.46 | 10.30.204.47 |
| 196 | 10.30.204.48/28 | 10.30.204.49 – 10.30.204.62 | 10.30.204.63 |
| 197 | 10.30.204.64/28 | 10.30.204.65 – 10.30.204.78 | 10.30.204.79 |
| 198 | 10.30.204.80/28 | 10.30.204.81 – 10.30.204.94 | 10.30.204.95 |
| 199 | 10.30.204.96/28 | 10.30.204.97 – 10.30.204.110 | 10.30.204.111 |
| 200 | 10.30.204.112/28 | 10.30.204.113 – 10.30.204.126 | 10.30.204.127 |
| 201 | 10.30.204.128/28 | 10.30.204.129 – 10.30.204.142 | 10.30.204.143 |
| 202 | 10.30.204.144/28 | 10.30.204.145 – 10.30.204.158 | 10.30.204.159 |
| 203 | 10.30.204.160/28 | 10.30.204.161 – 10.30.204.174 | 10.30.204.175 |
| 204 | 10.30.204.176/28 | 10.30.204.177 – 10.30.204.190 | 10.30.204.191 |
| 205 | 10.30.204.192/28 | 10.30.204.193 – 10.30.204.206 | 10.30.204.207 |
| 206 | 10.30.204.208/28 | 10.30.204.209 – 10.30.204.222 | 10.30.204.223 |
| 207 | 10.30.204.224/28 | 10.30.204.225 – 10.30.204.238 | 10.30.204.239 |
| 208 | 10.30.204.240/28 | 10.30.204.241 – 10.30.204.254 | 10.30.204.255 |
| 209 | 10.30.205.0/28 | 10.30.205.1 – 10.30.205.14 | 10.30.205.15 |
| 210 | 10.30.205.16/28 | 10.30.205.17 – 10.30.205.30 | 10.30.205.31 |
| 211 | 10.30.205.32/28 | 10.30.205.33 – 10.30.205.46 | 10.30.205.47 |
| 212 | 10.30.205.48/28 | 10.30.205.49 – 10.30.205.62 | 10.30.205.63 |
| 213 | 10.30.205.64/28 | 10.30.205.65 – 10.30.205.78 | 10.30.205.79 |
| 214 | 10.30.205.80/28 | 10.30.205.81 – 10.30.205.94 | 10.30.205.95 |
| 215 | 10.30.205.96/28 | 10.30.205.97 – 10.30.205.110 | 10.30.205.111 |
| 216 | 10.30.205.112/28 | 10.30.205.113 – 10.30.205.126 | 10.30.205.127 |
| 217 | 10.30.205.128/28 | 10.30.205.129 – 10.30.205.142 | 10.30.205.143 |
| 218 | 10.30.205.144/28 | 10.30.205.145 – 10.30.205.158 | 10.30.205.159 |
| 219 | 10.30.205.160/28 | 10.30.205.161 – 10.30.205.174 | 10.30.205.175 |
| 220 | 10.30.205.176/28 | 10.30.205.177 – 10.30.205.190 | 10.30.205.191 |
| 221 | 10.30.205.192/28 | 10.30.205.193 – 10.30.205.206 | 10.30.205.207 |
| 222 | 10.30.205.208/28 | 10.30.205.209 – 10.30.205.222 | 10.30.205.223 |
| 223 | 10.30.205.224/28 | 10.30.205.225 – 10.30.205.238 | 10.30.205.239 |
| 224 | 10.30.205.240/28 | 10.30.205.241 – 10.30.205.254 | 10.30.205.255 |
| 225 | 10.30.206.0/28 | 10.30.206.1 – 10.30.206.14 | 10.30.206.15 |
| 226 | 10.30.206.16/28 | 10.30.206.17 – 10.30.206.30 | 10.30.206.31 |
| 227 | 10.30.206.32/28 | 10.30.206.33 – 10.30.206.46 | 10.30.206.47 |
| 228 | 10.30.206.48/28 | 10.30.206.49 – 10.30.206.62 | 10.30.206.63 |
| 229 | 10.30.206.64/28 | 10.30.206.65 – 10.30.206.78 | 10.30.206.79 |
| 230 | 10.30.206.80/28 | 10.30.206.81 – 10.30.206.94 | 10.30.206.95 |
| 231 | 10.30.206.96/28 | 10.30.206.97 – 10.30.206.110 | 10.30.206.111 |
| 232 | 10.30.206.112/28 | 10.30.206.113 – 10.30.206.126 | 10.30.206.127 |
| 233 | 10.30.206.128/28 | 10.30.206.129 – 10.30.206.142 | 10.30.206.143 |
| 234 | 10.30.206.144/28 | 10.30.206.145 – 10.30.206.158 | 10.30.206.159 |
| 235 | 10.30.206.160/28 | 10.30.206.161 – 10.30.206.174 | 10.30.206.175 |
| 236 | 10.30.206.176/28 | 10.30.206.177 – 10.30.206.190 | 10.30.206.191 |
| 237 | 10.30.206.192/28 | 10.30.206.193 – 10.30.206.206 | 10.30.206.207 |
| 238 | 10.30.206.208/28 | 10.30.206.209 – 10.30.206.222 | 10.30.206.223 |
| 239 | 10.30.206.224/28 | 10.30.206.225 – 10.30.206.238 | 10.30.206.239 |
| 240 | 10.30.206.240/28 | 10.30.206.241 – 10.30.206.254 | 10.30.206.255 |
| 241 | 10.30.207.0/28 | 10.30.207.1 – 10.30.207.14 | 10.30.207.15 |
| 242 | 10.30.207.16/28 | 10.30.207.17 – 10.30.207.30 | 10.30.207.31 |
| 243 | 10.30.207.32/28 | 10.30.207.33 – 10.30.207.46 | 10.30.207.47 |
| 244 | 10.30.207.48/28 | 10.30.207.49 – 10.30.207.62 | 10.30.207.63 |
| 245 | 10.30.207.64/28 | 10.30.207.65 – 10.30.207.78 | 10.30.207.79 |
| 246 | 10.30.207.80/28 | 10.30.207.81 – 10.30.207.94 | 10.30.207.95 |
| 247 | 10.30.207.96/28 | 10.30.207.97 – 10.30.207.110 | 10.30.207.111 |
| 248 | 10.30.207.112/28 | 10.30.207.113 – 10.30.207.126 | 10.30.207.127 |
| 249 | 10.30.207.128/28 | 10.30.207.129 – 10.30.207.142 | 10.30.207.143 |
| 250 | 10.30.207.144/28 | 10.30.207.145 – 10.30.207.158 | 10.30.207.159 |
| 251 | 10.30.207.160/28 | 10.30.207.161 – 10.30.207.174 | 10.30.207.175 |
| 252 | 10.30.207.176/28 | 10.30.207.177 – 10.30.207.190 | 10.30.207.191 |
| 253 | 10.30.207.192/28 | 10.30.207.193 – 10.30.207.206 | 10.30.207.207 |
| 254 | 10.30.207.208/28 | 10.30.207.209 – 10.30.207.222 | 10.30.207.223 |
| 255 | 10.30.207.224/28 | 10.30.207.225 – 10.30.207.238 | 10.30.207.239 |
| 256 | 10.30.207.240/28 | 10.30.207.241 – 10.30.207.254 | 10.30.207.255 |
showing 256 of 1,024
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 /18 |
|---|---|---|---|---|
| /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 | 1 |
| /19 | 255.255.224.0 | 8,192 | 8,190 | 2 split → |
| /20 | 255.255.240.0 | 4,096 | 4,094 | 4 split → |
| /21 | 255.255.248.0 | 2,048 | 2,046 | 8 split → |
| /22 | 255.255.252.0 | 1,024 | 1,022 | 16 split → |
| /23 | 255.255.254.0 | 512 | 510 | 32 split → |
| /24 | 255.255.255.0 | 256 | 254 | 64 split → |
| /25 | 255.255.255.128 | 128 | 126 | 128 split → |
| /26 | 255.255.255.192 | 64 | 62 | 256 split → |
| /27 | 255.255.255.224 | 32 | 30 | 512 split → |
| /28 | 255.255.255.240 | 16 | 14 | 1,024 split → |
| /29 | 255.255.255.248 | 8 | 6 | 2,048 split → |
| /30 | 255.255.255.252 | 4 | 2 | 4,096 split → |
| /31 | 255.255.255.254 | 2 | 2 | 8,192 split → |
| /32 | 255.255.255.255 | 1 | 1 | 16,384 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.