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)10.149.192.0/22
network10.149.192.0/22
broadcast10.149.195.255
first host10.149.192.1
last host10.149.195.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.149.192.0/22
address00001010.10010101.11000000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.10010101.11000000.00000000
broadcast00001010.10010101.11000011.11111111
green = network part, grey = host part
hex0x0a95c000
decimal177586176
reverse dns0.192.149.10.in-addr.arpa
ipv4-mapped::ffff:a95:c000
/22 split into /29 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.149.192.0/29 | 10.149.192.1 – 10.149.192.6 | 10.149.192.7 |
| 2 | 10.149.192.8/29 | 10.149.192.9 – 10.149.192.14 | 10.149.192.15 |
| 3 | 10.149.192.16/29 | 10.149.192.17 – 10.149.192.22 | 10.149.192.23 |
| 4 | 10.149.192.24/29 | 10.149.192.25 – 10.149.192.30 | 10.149.192.31 |
| 5 | 10.149.192.32/29 | 10.149.192.33 – 10.149.192.38 | 10.149.192.39 |
| 6 | 10.149.192.40/29 | 10.149.192.41 – 10.149.192.46 | 10.149.192.47 |
| 7 | 10.149.192.48/29 | 10.149.192.49 – 10.149.192.54 | 10.149.192.55 |
| 8 | 10.149.192.56/29 | 10.149.192.57 – 10.149.192.62 | 10.149.192.63 |
| 9 | 10.149.192.64/29 | 10.149.192.65 – 10.149.192.70 | 10.149.192.71 |
| 10 | 10.149.192.72/29 | 10.149.192.73 – 10.149.192.78 | 10.149.192.79 |
| 11 | 10.149.192.80/29 | 10.149.192.81 – 10.149.192.86 | 10.149.192.87 |
| 12 | 10.149.192.88/29 | 10.149.192.89 – 10.149.192.94 | 10.149.192.95 |
| 13 | 10.149.192.96/29 | 10.149.192.97 – 10.149.192.102 | 10.149.192.103 |
| 14 | 10.149.192.104/29 | 10.149.192.105 – 10.149.192.110 | 10.149.192.111 |
| 15 | 10.149.192.112/29 | 10.149.192.113 – 10.149.192.118 | 10.149.192.119 |
| 16 | 10.149.192.120/29 | 10.149.192.121 – 10.149.192.126 | 10.149.192.127 |
| 17 | 10.149.192.128/29 | 10.149.192.129 – 10.149.192.134 | 10.149.192.135 |
| 18 | 10.149.192.136/29 | 10.149.192.137 – 10.149.192.142 | 10.149.192.143 |
| 19 | 10.149.192.144/29 | 10.149.192.145 – 10.149.192.150 | 10.149.192.151 |
| 20 | 10.149.192.152/29 | 10.149.192.153 – 10.149.192.158 | 10.149.192.159 |
| 21 | 10.149.192.160/29 | 10.149.192.161 – 10.149.192.166 | 10.149.192.167 |
| 22 | 10.149.192.168/29 | 10.149.192.169 – 10.149.192.174 | 10.149.192.175 |
| 23 | 10.149.192.176/29 | 10.149.192.177 – 10.149.192.182 | 10.149.192.183 |
| 24 | 10.149.192.184/29 | 10.149.192.185 – 10.149.192.190 | 10.149.192.191 |
| 25 | 10.149.192.192/29 | 10.149.192.193 – 10.149.192.198 | 10.149.192.199 |
| 26 | 10.149.192.200/29 | 10.149.192.201 – 10.149.192.206 | 10.149.192.207 |
| 27 | 10.149.192.208/29 | 10.149.192.209 – 10.149.192.214 | 10.149.192.215 |
| 28 | 10.149.192.216/29 | 10.149.192.217 – 10.149.192.222 | 10.149.192.223 |
| 29 | 10.149.192.224/29 | 10.149.192.225 – 10.149.192.230 | 10.149.192.231 |
| 30 | 10.149.192.232/29 | 10.149.192.233 – 10.149.192.238 | 10.149.192.239 |
| 31 | 10.149.192.240/29 | 10.149.192.241 – 10.149.192.246 | 10.149.192.247 |
| 32 | 10.149.192.248/29 | 10.149.192.249 – 10.149.192.254 | 10.149.192.255 |
| 33 | 10.149.193.0/29 | 10.149.193.1 – 10.149.193.6 | 10.149.193.7 |
| 34 | 10.149.193.8/29 | 10.149.193.9 – 10.149.193.14 | 10.149.193.15 |
| 35 | 10.149.193.16/29 | 10.149.193.17 – 10.149.193.22 | 10.149.193.23 |
| 36 | 10.149.193.24/29 | 10.149.193.25 – 10.149.193.30 | 10.149.193.31 |
| 37 | 10.149.193.32/29 | 10.149.193.33 – 10.149.193.38 | 10.149.193.39 |
| 38 | 10.149.193.40/29 | 10.149.193.41 – 10.149.193.46 | 10.149.193.47 |
| 39 | 10.149.193.48/29 | 10.149.193.49 – 10.149.193.54 | 10.149.193.55 |
| 40 | 10.149.193.56/29 | 10.149.193.57 – 10.149.193.62 | 10.149.193.63 |
| 41 | 10.149.193.64/29 | 10.149.193.65 – 10.149.193.70 | 10.149.193.71 |
| 42 | 10.149.193.72/29 | 10.149.193.73 – 10.149.193.78 | 10.149.193.79 |
| 43 | 10.149.193.80/29 | 10.149.193.81 – 10.149.193.86 | 10.149.193.87 |
| 44 | 10.149.193.88/29 | 10.149.193.89 – 10.149.193.94 | 10.149.193.95 |
| 45 | 10.149.193.96/29 | 10.149.193.97 – 10.149.193.102 | 10.149.193.103 |
| 46 | 10.149.193.104/29 | 10.149.193.105 – 10.149.193.110 | 10.149.193.111 |
| 47 | 10.149.193.112/29 | 10.149.193.113 – 10.149.193.118 | 10.149.193.119 |
| 48 | 10.149.193.120/29 | 10.149.193.121 – 10.149.193.126 | 10.149.193.127 |
| 49 | 10.149.193.128/29 | 10.149.193.129 – 10.149.193.134 | 10.149.193.135 |
| 50 | 10.149.193.136/29 | 10.149.193.137 – 10.149.193.142 | 10.149.193.143 |
| 51 | 10.149.193.144/29 | 10.149.193.145 – 10.149.193.150 | 10.149.193.151 |
| 52 | 10.149.193.152/29 | 10.149.193.153 – 10.149.193.158 | 10.149.193.159 |
| 53 | 10.149.193.160/29 | 10.149.193.161 – 10.149.193.166 | 10.149.193.167 |
| 54 | 10.149.193.168/29 | 10.149.193.169 – 10.149.193.174 | 10.149.193.175 |
| 55 | 10.149.193.176/29 | 10.149.193.177 – 10.149.193.182 | 10.149.193.183 |
| 56 | 10.149.193.184/29 | 10.149.193.185 – 10.149.193.190 | 10.149.193.191 |
| 57 | 10.149.193.192/29 | 10.149.193.193 – 10.149.193.198 | 10.149.193.199 |
| 58 | 10.149.193.200/29 | 10.149.193.201 – 10.149.193.206 | 10.149.193.207 |
| 59 | 10.149.193.208/29 | 10.149.193.209 – 10.149.193.214 | 10.149.193.215 |
| 60 | 10.149.193.216/29 | 10.149.193.217 – 10.149.193.222 | 10.149.193.223 |
| 61 | 10.149.193.224/29 | 10.149.193.225 – 10.149.193.230 | 10.149.193.231 |
| 62 | 10.149.193.232/29 | 10.149.193.233 – 10.149.193.238 | 10.149.193.239 |
| 63 | 10.149.193.240/29 | 10.149.193.241 – 10.149.193.246 | 10.149.193.247 |
| 64 | 10.149.193.248/29 | 10.149.193.249 – 10.149.193.254 | 10.149.193.255 |
| 65 | 10.149.194.0/29 | 10.149.194.1 – 10.149.194.6 | 10.149.194.7 |
| 66 | 10.149.194.8/29 | 10.149.194.9 – 10.149.194.14 | 10.149.194.15 |
| 67 | 10.149.194.16/29 | 10.149.194.17 – 10.149.194.22 | 10.149.194.23 |
| 68 | 10.149.194.24/29 | 10.149.194.25 – 10.149.194.30 | 10.149.194.31 |
| 69 | 10.149.194.32/29 | 10.149.194.33 – 10.149.194.38 | 10.149.194.39 |
| 70 | 10.149.194.40/29 | 10.149.194.41 – 10.149.194.46 | 10.149.194.47 |
| 71 | 10.149.194.48/29 | 10.149.194.49 – 10.149.194.54 | 10.149.194.55 |
| 72 | 10.149.194.56/29 | 10.149.194.57 – 10.149.194.62 | 10.149.194.63 |
| 73 | 10.149.194.64/29 | 10.149.194.65 – 10.149.194.70 | 10.149.194.71 |
| 74 | 10.149.194.72/29 | 10.149.194.73 – 10.149.194.78 | 10.149.194.79 |
| 75 | 10.149.194.80/29 | 10.149.194.81 – 10.149.194.86 | 10.149.194.87 |
| 76 | 10.149.194.88/29 | 10.149.194.89 – 10.149.194.94 | 10.149.194.95 |
| 77 | 10.149.194.96/29 | 10.149.194.97 – 10.149.194.102 | 10.149.194.103 |
| 78 | 10.149.194.104/29 | 10.149.194.105 – 10.149.194.110 | 10.149.194.111 |
| 79 | 10.149.194.112/29 | 10.149.194.113 – 10.149.194.118 | 10.149.194.119 |
| 80 | 10.149.194.120/29 | 10.149.194.121 – 10.149.194.126 | 10.149.194.127 |
| 81 | 10.149.194.128/29 | 10.149.194.129 – 10.149.194.134 | 10.149.194.135 |
| 82 | 10.149.194.136/29 | 10.149.194.137 – 10.149.194.142 | 10.149.194.143 |
| 83 | 10.149.194.144/29 | 10.149.194.145 – 10.149.194.150 | 10.149.194.151 |
| 84 | 10.149.194.152/29 | 10.149.194.153 – 10.149.194.158 | 10.149.194.159 |
| 85 | 10.149.194.160/29 | 10.149.194.161 – 10.149.194.166 | 10.149.194.167 |
| 86 | 10.149.194.168/29 | 10.149.194.169 – 10.149.194.174 | 10.149.194.175 |
| 87 | 10.149.194.176/29 | 10.149.194.177 – 10.149.194.182 | 10.149.194.183 |
| 88 | 10.149.194.184/29 | 10.149.194.185 – 10.149.194.190 | 10.149.194.191 |
| 89 | 10.149.194.192/29 | 10.149.194.193 – 10.149.194.198 | 10.149.194.199 |
| 90 | 10.149.194.200/29 | 10.149.194.201 – 10.149.194.206 | 10.149.194.207 |
| 91 | 10.149.194.208/29 | 10.149.194.209 – 10.149.194.214 | 10.149.194.215 |
| 92 | 10.149.194.216/29 | 10.149.194.217 – 10.149.194.222 | 10.149.194.223 |
| 93 | 10.149.194.224/29 | 10.149.194.225 – 10.149.194.230 | 10.149.194.231 |
| 94 | 10.149.194.232/29 | 10.149.194.233 – 10.149.194.238 | 10.149.194.239 |
| 95 | 10.149.194.240/29 | 10.149.194.241 – 10.149.194.246 | 10.149.194.247 |
| 96 | 10.149.194.248/29 | 10.149.194.249 – 10.149.194.254 | 10.149.194.255 |
| 97 | 10.149.195.0/29 | 10.149.195.1 – 10.149.195.6 | 10.149.195.7 |
| 98 | 10.149.195.8/29 | 10.149.195.9 – 10.149.195.14 | 10.149.195.15 |
| 99 | 10.149.195.16/29 | 10.149.195.17 – 10.149.195.22 | 10.149.195.23 |
| 100 | 10.149.195.24/29 | 10.149.195.25 – 10.149.195.30 | 10.149.195.31 |
| 101 | 10.149.195.32/29 | 10.149.195.33 – 10.149.195.38 | 10.149.195.39 |
| 102 | 10.149.195.40/29 | 10.149.195.41 – 10.149.195.46 | 10.149.195.47 |
| 103 | 10.149.195.48/29 | 10.149.195.49 – 10.149.195.54 | 10.149.195.55 |
| 104 | 10.149.195.56/29 | 10.149.195.57 – 10.149.195.62 | 10.149.195.63 |
| 105 | 10.149.195.64/29 | 10.149.195.65 – 10.149.195.70 | 10.149.195.71 |
| 106 | 10.149.195.72/29 | 10.149.195.73 – 10.149.195.78 | 10.149.195.79 |
| 107 | 10.149.195.80/29 | 10.149.195.81 – 10.149.195.86 | 10.149.195.87 |
| 108 | 10.149.195.88/29 | 10.149.195.89 – 10.149.195.94 | 10.149.195.95 |
| 109 | 10.149.195.96/29 | 10.149.195.97 – 10.149.195.102 | 10.149.195.103 |
| 110 | 10.149.195.104/29 | 10.149.195.105 – 10.149.195.110 | 10.149.195.111 |
| 111 | 10.149.195.112/29 | 10.149.195.113 – 10.149.195.118 | 10.149.195.119 |
| 112 | 10.149.195.120/29 | 10.149.195.121 – 10.149.195.126 | 10.149.195.127 |
| 113 | 10.149.195.128/29 | 10.149.195.129 – 10.149.195.134 | 10.149.195.135 |
| 114 | 10.149.195.136/29 | 10.149.195.137 – 10.149.195.142 | 10.149.195.143 |
| 115 | 10.149.195.144/29 | 10.149.195.145 – 10.149.195.150 | 10.149.195.151 |
| 116 | 10.149.195.152/29 | 10.149.195.153 – 10.149.195.158 | 10.149.195.159 |
| 117 | 10.149.195.160/29 | 10.149.195.161 – 10.149.195.166 | 10.149.195.167 |
| 118 | 10.149.195.168/29 | 10.149.195.169 – 10.149.195.174 | 10.149.195.175 |
| 119 | 10.149.195.176/29 | 10.149.195.177 – 10.149.195.182 | 10.149.195.183 |
| 120 | 10.149.195.184/29 | 10.149.195.185 – 10.149.195.190 | 10.149.195.191 |
| 121 | 10.149.195.192/29 | 10.149.195.193 – 10.149.195.198 | 10.149.195.199 |
| 122 | 10.149.195.200/29 | 10.149.195.201 – 10.149.195.206 | 10.149.195.207 |
| 123 | 10.149.195.208/29 | 10.149.195.209 – 10.149.195.214 | 10.149.195.215 |
| 124 | 10.149.195.216/29 | 10.149.195.217 – 10.149.195.222 | 10.149.195.223 |
| 125 | 10.149.195.224/29 | 10.149.195.225 – 10.149.195.230 | 10.149.195.231 |
| 126 | 10.149.195.232/29 | 10.149.195.233 – 10.149.195.238 | 10.149.195.239 |
| 127 | 10.149.195.240/29 | 10.149.195.241 – 10.149.195.246 | 10.149.195.247 |
| 128 | 10.149.195.248/29 | 10.149.195.249 – 10.149.195.254 | 10.149.195.255 |
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 /22 |
|---|---|---|---|---|
| /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 | 1 |
| /23 | 255.255.254.0 | 512 | 510 | 2 split → |
| /24 | 255.255.255.0 | 256 | 254 | 4 split → |
| /25 | 255.255.255.128 | 128 | 126 | 8 split → |
| /26 | 255.255.255.192 | 64 | 62 | 16 split → |
| /27 | 255.255.255.224 | 32 | 30 | 32 split → |
| /28 | 255.255.255.240 | 16 | 14 | 64 split → |
| /29 | 255.255.255.248 | 8 | 6 | 128 split → |
| /30 | 255.255.255.252 | 4 | 2 | 256 split → |
| /31 | 255.255.255.254 | 2 | 2 | 512 split → |
| /32 | 255.255.255.255 | 1 | 1 | 1,024 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.