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)10.49.136.0/22
network10.49.136.0/22
broadcast10.49.139.255
first host10.49.136.1
last host10.49.139.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.49.136.0/22
address00001010.00110001.10001000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.00110001.10001000.00000000
broadcast00001010.00110001.10001011.11111111
green = network part, grey = host part
hex0x0a318800
decimal171018240
reverse dns0.136.49.10.in-addr.arpa
ipv4-mapped::ffff:a31:8800
/22 split into /29 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.49.136.0/29 | 10.49.136.1 – 10.49.136.6 | 10.49.136.7 |
| 2 | 10.49.136.8/29 | 10.49.136.9 – 10.49.136.14 | 10.49.136.15 |
| 3 | 10.49.136.16/29 | 10.49.136.17 – 10.49.136.22 | 10.49.136.23 |
| 4 | 10.49.136.24/29 | 10.49.136.25 – 10.49.136.30 | 10.49.136.31 |
| 5 | 10.49.136.32/29 | 10.49.136.33 – 10.49.136.38 | 10.49.136.39 |
| 6 | 10.49.136.40/29 | 10.49.136.41 – 10.49.136.46 | 10.49.136.47 |
| 7 | 10.49.136.48/29 | 10.49.136.49 – 10.49.136.54 | 10.49.136.55 |
| 8 | 10.49.136.56/29 | 10.49.136.57 – 10.49.136.62 | 10.49.136.63 |
| 9 | 10.49.136.64/29 | 10.49.136.65 – 10.49.136.70 | 10.49.136.71 |
| 10 | 10.49.136.72/29 | 10.49.136.73 – 10.49.136.78 | 10.49.136.79 |
| 11 | 10.49.136.80/29 | 10.49.136.81 – 10.49.136.86 | 10.49.136.87 |
| 12 | 10.49.136.88/29 | 10.49.136.89 – 10.49.136.94 | 10.49.136.95 |
| 13 | 10.49.136.96/29 | 10.49.136.97 – 10.49.136.102 | 10.49.136.103 |
| 14 | 10.49.136.104/29 | 10.49.136.105 – 10.49.136.110 | 10.49.136.111 |
| 15 | 10.49.136.112/29 | 10.49.136.113 – 10.49.136.118 | 10.49.136.119 |
| 16 | 10.49.136.120/29 | 10.49.136.121 – 10.49.136.126 | 10.49.136.127 |
| 17 | 10.49.136.128/29 | 10.49.136.129 – 10.49.136.134 | 10.49.136.135 |
| 18 | 10.49.136.136/29 | 10.49.136.137 – 10.49.136.142 | 10.49.136.143 |
| 19 | 10.49.136.144/29 | 10.49.136.145 – 10.49.136.150 | 10.49.136.151 |
| 20 | 10.49.136.152/29 | 10.49.136.153 – 10.49.136.158 | 10.49.136.159 |
| 21 | 10.49.136.160/29 | 10.49.136.161 – 10.49.136.166 | 10.49.136.167 |
| 22 | 10.49.136.168/29 | 10.49.136.169 – 10.49.136.174 | 10.49.136.175 |
| 23 | 10.49.136.176/29 | 10.49.136.177 – 10.49.136.182 | 10.49.136.183 |
| 24 | 10.49.136.184/29 | 10.49.136.185 – 10.49.136.190 | 10.49.136.191 |
| 25 | 10.49.136.192/29 | 10.49.136.193 – 10.49.136.198 | 10.49.136.199 |
| 26 | 10.49.136.200/29 | 10.49.136.201 – 10.49.136.206 | 10.49.136.207 |
| 27 | 10.49.136.208/29 | 10.49.136.209 – 10.49.136.214 | 10.49.136.215 |
| 28 | 10.49.136.216/29 | 10.49.136.217 – 10.49.136.222 | 10.49.136.223 |
| 29 | 10.49.136.224/29 | 10.49.136.225 – 10.49.136.230 | 10.49.136.231 |
| 30 | 10.49.136.232/29 | 10.49.136.233 – 10.49.136.238 | 10.49.136.239 |
| 31 | 10.49.136.240/29 | 10.49.136.241 – 10.49.136.246 | 10.49.136.247 |
| 32 | 10.49.136.248/29 | 10.49.136.249 – 10.49.136.254 | 10.49.136.255 |
| 33 | 10.49.137.0/29 | 10.49.137.1 – 10.49.137.6 | 10.49.137.7 |
| 34 | 10.49.137.8/29 | 10.49.137.9 – 10.49.137.14 | 10.49.137.15 |
| 35 | 10.49.137.16/29 | 10.49.137.17 – 10.49.137.22 | 10.49.137.23 |
| 36 | 10.49.137.24/29 | 10.49.137.25 – 10.49.137.30 | 10.49.137.31 |
| 37 | 10.49.137.32/29 | 10.49.137.33 – 10.49.137.38 | 10.49.137.39 |
| 38 | 10.49.137.40/29 | 10.49.137.41 – 10.49.137.46 | 10.49.137.47 |
| 39 | 10.49.137.48/29 | 10.49.137.49 – 10.49.137.54 | 10.49.137.55 |
| 40 | 10.49.137.56/29 | 10.49.137.57 – 10.49.137.62 | 10.49.137.63 |
| 41 | 10.49.137.64/29 | 10.49.137.65 – 10.49.137.70 | 10.49.137.71 |
| 42 | 10.49.137.72/29 | 10.49.137.73 – 10.49.137.78 | 10.49.137.79 |
| 43 | 10.49.137.80/29 | 10.49.137.81 – 10.49.137.86 | 10.49.137.87 |
| 44 | 10.49.137.88/29 | 10.49.137.89 – 10.49.137.94 | 10.49.137.95 |
| 45 | 10.49.137.96/29 | 10.49.137.97 – 10.49.137.102 | 10.49.137.103 |
| 46 | 10.49.137.104/29 | 10.49.137.105 – 10.49.137.110 | 10.49.137.111 |
| 47 | 10.49.137.112/29 | 10.49.137.113 – 10.49.137.118 | 10.49.137.119 |
| 48 | 10.49.137.120/29 | 10.49.137.121 – 10.49.137.126 | 10.49.137.127 |
| 49 | 10.49.137.128/29 | 10.49.137.129 – 10.49.137.134 | 10.49.137.135 |
| 50 | 10.49.137.136/29 | 10.49.137.137 – 10.49.137.142 | 10.49.137.143 |
| 51 | 10.49.137.144/29 | 10.49.137.145 – 10.49.137.150 | 10.49.137.151 |
| 52 | 10.49.137.152/29 | 10.49.137.153 – 10.49.137.158 | 10.49.137.159 |
| 53 | 10.49.137.160/29 | 10.49.137.161 – 10.49.137.166 | 10.49.137.167 |
| 54 | 10.49.137.168/29 | 10.49.137.169 – 10.49.137.174 | 10.49.137.175 |
| 55 | 10.49.137.176/29 | 10.49.137.177 – 10.49.137.182 | 10.49.137.183 |
| 56 | 10.49.137.184/29 | 10.49.137.185 – 10.49.137.190 | 10.49.137.191 |
| 57 | 10.49.137.192/29 | 10.49.137.193 – 10.49.137.198 | 10.49.137.199 |
| 58 | 10.49.137.200/29 | 10.49.137.201 – 10.49.137.206 | 10.49.137.207 |
| 59 | 10.49.137.208/29 | 10.49.137.209 – 10.49.137.214 | 10.49.137.215 |
| 60 | 10.49.137.216/29 | 10.49.137.217 – 10.49.137.222 | 10.49.137.223 |
| 61 | 10.49.137.224/29 | 10.49.137.225 – 10.49.137.230 | 10.49.137.231 |
| 62 | 10.49.137.232/29 | 10.49.137.233 – 10.49.137.238 | 10.49.137.239 |
| 63 | 10.49.137.240/29 | 10.49.137.241 – 10.49.137.246 | 10.49.137.247 |
| 64 | 10.49.137.248/29 | 10.49.137.249 – 10.49.137.254 | 10.49.137.255 |
| 65 | 10.49.138.0/29 | 10.49.138.1 – 10.49.138.6 | 10.49.138.7 |
| 66 | 10.49.138.8/29 | 10.49.138.9 – 10.49.138.14 | 10.49.138.15 |
| 67 | 10.49.138.16/29 | 10.49.138.17 – 10.49.138.22 | 10.49.138.23 |
| 68 | 10.49.138.24/29 | 10.49.138.25 – 10.49.138.30 | 10.49.138.31 |
| 69 | 10.49.138.32/29 | 10.49.138.33 – 10.49.138.38 | 10.49.138.39 |
| 70 | 10.49.138.40/29 | 10.49.138.41 – 10.49.138.46 | 10.49.138.47 |
| 71 | 10.49.138.48/29 | 10.49.138.49 – 10.49.138.54 | 10.49.138.55 |
| 72 | 10.49.138.56/29 | 10.49.138.57 – 10.49.138.62 | 10.49.138.63 |
| 73 | 10.49.138.64/29 | 10.49.138.65 – 10.49.138.70 | 10.49.138.71 |
| 74 | 10.49.138.72/29 | 10.49.138.73 – 10.49.138.78 | 10.49.138.79 |
| 75 | 10.49.138.80/29 | 10.49.138.81 – 10.49.138.86 | 10.49.138.87 |
| 76 | 10.49.138.88/29 | 10.49.138.89 – 10.49.138.94 | 10.49.138.95 |
| 77 | 10.49.138.96/29 | 10.49.138.97 – 10.49.138.102 | 10.49.138.103 |
| 78 | 10.49.138.104/29 | 10.49.138.105 – 10.49.138.110 | 10.49.138.111 |
| 79 | 10.49.138.112/29 | 10.49.138.113 – 10.49.138.118 | 10.49.138.119 |
| 80 | 10.49.138.120/29 | 10.49.138.121 – 10.49.138.126 | 10.49.138.127 |
| 81 | 10.49.138.128/29 | 10.49.138.129 – 10.49.138.134 | 10.49.138.135 |
| 82 | 10.49.138.136/29 | 10.49.138.137 – 10.49.138.142 | 10.49.138.143 |
| 83 | 10.49.138.144/29 | 10.49.138.145 – 10.49.138.150 | 10.49.138.151 |
| 84 | 10.49.138.152/29 | 10.49.138.153 – 10.49.138.158 | 10.49.138.159 |
| 85 | 10.49.138.160/29 | 10.49.138.161 – 10.49.138.166 | 10.49.138.167 |
| 86 | 10.49.138.168/29 | 10.49.138.169 – 10.49.138.174 | 10.49.138.175 |
| 87 | 10.49.138.176/29 | 10.49.138.177 – 10.49.138.182 | 10.49.138.183 |
| 88 | 10.49.138.184/29 | 10.49.138.185 – 10.49.138.190 | 10.49.138.191 |
| 89 | 10.49.138.192/29 | 10.49.138.193 – 10.49.138.198 | 10.49.138.199 |
| 90 | 10.49.138.200/29 | 10.49.138.201 – 10.49.138.206 | 10.49.138.207 |
| 91 | 10.49.138.208/29 | 10.49.138.209 – 10.49.138.214 | 10.49.138.215 |
| 92 | 10.49.138.216/29 | 10.49.138.217 – 10.49.138.222 | 10.49.138.223 |
| 93 | 10.49.138.224/29 | 10.49.138.225 – 10.49.138.230 | 10.49.138.231 |
| 94 | 10.49.138.232/29 | 10.49.138.233 – 10.49.138.238 | 10.49.138.239 |
| 95 | 10.49.138.240/29 | 10.49.138.241 – 10.49.138.246 | 10.49.138.247 |
| 96 | 10.49.138.248/29 | 10.49.138.249 – 10.49.138.254 | 10.49.138.255 |
| 97 | 10.49.139.0/29 | 10.49.139.1 – 10.49.139.6 | 10.49.139.7 |
| 98 | 10.49.139.8/29 | 10.49.139.9 – 10.49.139.14 | 10.49.139.15 |
| 99 | 10.49.139.16/29 | 10.49.139.17 – 10.49.139.22 | 10.49.139.23 |
| 100 | 10.49.139.24/29 | 10.49.139.25 – 10.49.139.30 | 10.49.139.31 |
| 101 | 10.49.139.32/29 | 10.49.139.33 – 10.49.139.38 | 10.49.139.39 |
| 102 | 10.49.139.40/29 | 10.49.139.41 – 10.49.139.46 | 10.49.139.47 |
| 103 | 10.49.139.48/29 | 10.49.139.49 – 10.49.139.54 | 10.49.139.55 |
| 104 | 10.49.139.56/29 | 10.49.139.57 – 10.49.139.62 | 10.49.139.63 |
| 105 | 10.49.139.64/29 | 10.49.139.65 – 10.49.139.70 | 10.49.139.71 |
| 106 | 10.49.139.72/29 | 10.49.139.73 – 10.49.139.78 | 10.49.139.79 |
| 107 | 10.49.139.80/29 | 10.49.139.81 – 10.49.139.86 | 10.49.139.87 |
| 108 | 10.49.139.88/29 | 10.49.139.89 – 10.49.139.94 | 10.49.139.95 |
| 109 | 10.49.139.96/29 | 10.49.139.97 – 10.49.139.102 | 10.49.139.103 |
| 110 | 10.49.139.104/29 | 10.49.139.105 – 10.49.139.110 | 10.49.139.111 |
| 111 | 10.49.139.112/29 | 10.49.139.113 – 10.49.139.118 | 10.49.139.119 |
| 112 | 10.49.139.120/29 | 10.49.139.121 – 10.49.139.126 | 10.49.139.127 |
| 113 | 10.49.139.128/29 | 10.49.139.129 – 10.49.139.134 | 10.49.139.135 |
| 114 | 10.49.139.136/29 | 10.49.139.137 – 10.49.139.142 | 10.49.139.143 |
| 115 | 10.49.139.144/29 | 10.49.139.145 – 10.49.139.150 | 10.49.139.151 |
| 116 | 10.49.139.152/29 | 10.49.139.153 – 10.49.139.158 | 10.49.139.159 |
| 117 | 10.49.139.160/29 | 10.49.139.161 – 10.49.139.166 | 10.49.139.167 |
| 118 | 10.49.139.168/29 | 10.49.139.169 – 10.49.139.174 | 10.49.139.175 |
| 119 | 10.49.139.176/29 | 10.49.139.177 – 10.49.139.182 | 10.49.139.183 |
| 120 | 10.49.139.184/29 | 10.49.139.185 – 10.49.139.190 | 10.49.139.191 |
| 121 | 10.49.139.192/29 | 10.49.139.193 – 10.49.139.198 | 10.49.139.199 |
| 122 | 10.49.139.200/29 | 10.49.139.201 – 10.49.139.206 | 10.49.139.207 |
| 123 | 10.49.139.208/29 | 10.49.139.209 – 10.49.139.214 | 10.49.139.215 |
| 124 | 10.49.139.216/29 | 10.49.139.217 – 10.49.139.222 | 10.49.139.223 |
| 125 | 10.49.139.224/29 | 10.49.139.225 – 10.49.139.230 | 10.49.139.231 |
| 126 | 10.49.139.232/29 | 10.49.139.233 – 10.49.139.238 | 10.49.139.239 |
| 127 | 10.49.139.240/29 | 10.49.139.241 – 10.49.139.246 | 10.49.139.247 |
| 128 | 10.49.139.248/29 | 10.49.139.249 – 10.49.139.254 | 10.49.139.255 |
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.