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)10.52.0.0/15
network10.52.0.0/15
broadcast10.53.255.255
first host10.52.0.1
last host10.53.255.254
subnet mask255.254.0.0
wildcard0.1.255.255
addresses131,072
usable hosts131,070
classA
ipcalc 10.52.0.0/15
address00001010.00110100.00000000.00000000
subnet mask11111111.11111110.00000000.00000000
network00001010.00110100.00000000.00000000
broadcast00001010.00110101.11111111.11111111
green = network part, grey = host part
hex0x0a340000
decimal171180032
reverse dns0.0.52.10.in-addr.arpa
ipv4-mapped::ffff:a34:0
/15 split into /22 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.52.0.0/22 | 10.52.0.1 – 10.52.3.254 | 10.52.3.255 |
| 2 | 10.52.4.0/22 | 10.52.4.1 – 10.52.7.254 | 10.52.7.255 |
| 3 | 10.52.8.0/22 | 10.52.8.1 – 10.52.11.254 | 10.52.11.255 |
| 4 | 10.52.12.0/22 | 10.52.12.1 – 10.52.15.254 | 10.52.15.255 |
| 5 | 10.52.16.0/22 | 10.52.16.1 – 10.52.19.254 | 10.52.19.255 |
| 6 | 10.52.20.0/22 | 10.52.20.1 – 10.52.23.254 | 10.52.23.255 |
| 7 | 10.52.24.0/22 | 10.52.24.1 – 10.52.27.254 | 10.52.27.255 |
| 8 | 10.52.28.0/22 | 10.52.28.1 – 10.52.31.254 | 10.52.31.255 |
| 9 | 10.52.32.0/22 | 10.52.32.1 – 10.52.35.254 | 10.52.35.255 |
| 10 | 10.52.36.0/22 | 10.52.36.1 – 10.52.39.254 | 10.52.39.255 |
| 11 | 10.52.40.0/22 | 10.52.40.1 – 10.52.43.254 | 10.52.43.255 |
| 12 | 10.52.44.0/22 | 10.52.44.1 – 10.52.47.254 | 10.52.47.255 |
| 13 | 10.52.48.0/22 | 10.52.48.1 – 10.52.51.254 | 10.52.51.255 |
| 14 | 10.52.52.0/22 | 10.52.52.1 – 10.52.55.254 | 10.52.55.255 |
| 15 | 10.52.56.0/22 | 10.52.56.1 – 10.52.59.254 | 10.52.59.255 |
| 16 | 10.52.60.0/22 | 10.52.60.1 – 10.52.63.254 | 10.52.63.255 |
| 17 | 10.52.64.0/22 | 10.52.64.1 – 10.52.67.254 | 10.52.67.255 |
| 18 | 10.52.68.0/22 | 10.52.68.1 – 10.52.71.254 | 10.52.71.255 |
| 19 | 10.52.72.0/22 | 10.52.72.1 – 10.52.75.254 | 10.52.75.255 |
| 20 | 10.52.76.0/22 | 10.52.76.1 – 10.52.79.254 | 10.52.79.255 |
| 21 | 10.52.80.0/22 | 10.52.80.1 – 10.52.83.254 | 10.52.83.255 |
| 22 | 10.52.84.0/22 | 10.52.84.1 – 10.52.87.254 | 10.52.87.255 |
| 23 | 10.52.88.0/22 | 10.52.88.1 – 10.52.91.254 | 10.52.91.255 |
| 24 | 10.52.92.0/22 | 10.52.92.1 – 10.52.95.254 | 10.52.95.255 |
| 25 | 10.52.96.0/22 | 10.52.96.1 – 10.52.99.254 | 10.52.99.255 |
| 26 | 10.52.100.0/22 | 10.52.100.1 – 10.52.103.254 | 10.52.103.255 |
| 27 | 10.52.104.0/22 | 10.52.104.1 – 10.52.107.254 | 10.52.107.255 |
| 28 | 10.52.108.0/22 | 10.52.108.1 – 10.52.111.254 | 10.52.111.255 |
| 29 | 10.52.112.0/22 | 10.52.112.1 – 10.52.115.254 | 10.52.115.255 |
| 30 | 10.52.116.0/22 | 10.52.116.1 – 10.52.119.254 | 10.52.119.255 |
| 31 | 10.52.120.0/22 | 10.52.120.1 – 10.52.123.254 | 10.52.123.255 |
| 32 | 10.52.124.0/22 | 10.52.124.1 – 10.52.127.254 | 10.52.127.255 |
| 33 | 10.52.128.0/22 | 10.52.128.1 – 10.52.131.254 | 10.52.131.255 |
| 34 | 10.52.132.0/22 | 10.52.132.1 – 10.52.135.254 | 10.52.135.255 |
| 35 | 10.52.136.0/22 | 10.52.136.1 – 10.52.139.254 | 10.52.139.255 |
| 36 | 10.52.140.0/22 | 10.52.140.1 – 10.52.143.254 | 10.52.143.255 |
| 37 | 10.52.144.0/22 | 10.52.144.1 – 10.52.147.254 | 10.52.147.255 |
| 38 | 10.52.148.0/22 | 10.52.148.1 – 10.52.151.254 | 10.52.151.255 |
| 39 | 10.52.152.0/22 | 10.52.152.1 – 10.52.155.254 | 10.52.155.255 |
| 40 | 10.52.156.0/22 | 10.52.156.1 – 10.52.159.254 | 10.52.159.255 |
| 41 | 10.52.160.0/22 | 10.52.160.1 – 10.52.163.254 | 10.52.163.255 |
| 42 | 10.52.164.0/22 | 10.52.164.1 – 10.52.167.254 | 10.52.167.255 |
| 43 | 10.52.168.0/22 | 10.52.168.1 – 10.52.171.254 | 10.52.171.255 |
| 44 | 10.52.172.0/22 | 10.52.172.1 – 10.52.175.254 | 10.52.175.255 |
| 45 | 10.52.176.0/22 | 10.52.176.1 – 10.52.179.254 | 10.52.179.255 |
| 46 | 10.52.180.0/22 | 10.52.180.1 – 10.52.183.254 | 10.52.183.255 |
| 47 | 10.52.184.0/22 | 10.52.184.1 – 10.52.187.254 | 10.52.187.255 |
| 48 | 10.52.188.0/22 | 10.52.188.1 – 10.52.191.254 | 10.52.191.255 |
| 49 | 10.52.192.0/22 | 10.52.192.1 – 10.52.195.254 | 10.52.195.255 |
| 50 | 10.52.196.0/22 | 10.52.196.1 – 10.52.199.254 | 10.52.199.255 |
| 51 | 10.52.200.0/22 | 10.52.200.1 – 10.52.203.254 | 10.52.203.255 |
| 52 | 10.52.204.0/22 | 10.52.204.1 – 10.52.207.254 | 10.52.207.255 |
| 53 | 10.52.208.0/22 | 10.52.208.1 – 10.52.211.254 | 10.52.211.255 |
| 54 | 10.52.212.0/22 | 10.52.212.1 – 10.52.215.254 | 10.52.215.255 |
| 55 | 10.52.216.0/22 | 10.52.216.1 – 10.52.219.254 | 10.52.219.255 |
| 56 | 10.52.220.0/22 | 10.52.220.1 – 10.52.223.254 | 10.52.223.255 |
| 57 | 10.52.224.0/22 | 10.52.224.1 – 10.52.227.254 | 10.52.227.255 |
| 58 | 10.52.228.0/22 | 10.52.228.1 – 10.52.231.254 | 10.52.231.255 |
| 59 | 10.52.232.0/22 | 10.52.232.1 – 10.52.235.254 | 10.52.235.255 |
| 60 | 10.52.236.0/22 | 10.52.236.1 – 10.52.239.254 | 10.52.239.255 |
| 61 | 10.52.240.0/22 | 10.52.240.1 – 10.52.243.254 | 10.52.243.255 |
| 62 | 10.52.244.0/22 | 10.52.244.1 – 10.52.247.254 | 10.52.247.255 |
| 63 | 10.52.248.0/22 | 10.52.248.1 – 10.52.251.254 | 10.52.251.255 |
| 64 | 10.52.252.0/22 | 10.52.252.1 – 10.52.255.254 | 10.52.255.255 |
| 65 | 10.53.0.0/22 | 10.53.0.1 – 10.53.3.254 | 10.53.3.255 |
| 66 | 10.53.4.0/22 | 10.53.4.1 – 10.53.7.254 | 10.53.7.255 |
| 67 | 10.53.8.0/22 | 10.53.8.1 – 10.53.11.254 | 10.53.11.255 |
| 68 | 10.53.12.0/22 | 10.53.12.1 – 10.53.15.254 | 10.53.15.255 |
| 69 | 10.53.16.0/22 | 10.53.16.1 – 10.53.19.254 | 10.53.19.255 |
| 70 | 10.53.20.0/22 | 10.53.20.1 – 10.53.23.254 | 10.53.23.255 |
| 71 | 10.53.24.0/22 | 10.53.24.1 – 10.53.27.254 | 10.53.27.255 |
| 72 | 10.53.28.0/22 | 10.53.28.1 – 10.53.31.254 | 10.53.31.255 |
| 73 | 10.53.32.0/22 | 10.53.32.1 – 10.53.35.254 | 10.53.35.255 |
| 74 | 10.53.36.0/22 | 10.53.36.1 – 10.53.39.254 | 10.53.39.255 |
| 75 | 10.53.40.0/22 | 10.53.40.1 – 10.53.43.254 | 10.53.43.255 |
| 76 | 10.53.44.0/22 | 10.53.44.1 – 10.53.47.254 | 10.53.47.255 |
| 77 | 10.53.48.0/22 | 10.53.48.1 – 10.53.51.254 | 10.53.51.255 |
| 78 | 10.53.52.0/22 | 10.53.52.1 – 10.53.55.254 | 10.53.55.255 |
| 79 | 10.53.56.0/22 | 10.53.56.1 – 10.53.59.254 | 10.53.59.255 |
| 80 | 10.53.60.0/22 | 10.53.60.1 – 10.53.63.254 | 10.53.63.255 |
| 81 | 10.53.64.0/22 | 10.53.64.1 – 10.53.67.254 | 10.53.67.255 |
| 82 | 10.53.68.0/22 | 10.53.68.1 – 10.53.71.254 | 10.53.71.255 |
| 83 | 10.53.72.0/22 | 10.53.72.1 – 10.53.75.254 | 10.53.75.255 |
| 84 | 10.53.76.0/22 | 10.53.76.1 – 10.53.79.254 | 10.53.79.255 |
| 85 | 10.53.80.0/22 | 10.53.80.1 – 10.53.83.254 | 10.53.83.255 |
| 86 | 10.53.84.0/22 | 10.53.84.1 – 10.53.87.254 | 10.53.87.255 |
| 87 | 10.53.88.0/22 | 10.53.88.1 – 10.53.91.254 | 10.53.91.255 |
| 88 | 10.53.92.0/22 | 10.53.92.1 – 10.53.95.254 | 10.53.95.255 |
| 89 | 10.53.96.0/22 | 10.53.96.1 – 10.53.99.254 | 10.53.99.255 |
| 90 | 10.53.100.0/22 | 10.53.100.1 – 10.53.103.254 | 10.53.103.255 |
| 91 | 10.53.104.0/22 | 10.53.104.1 – 10.53.107.254 | 10.53.107.255 |
| 92 | 10.53.108.0/22 | 10.53.108.1 – 10.53.111.254 | 10.53.111.255 |
| 93 | 10.53.112.0/22 | 10.53.112.1 – 10.53.115.254 | 10.53.115.255 |
| 94 | 10.53.116.0/22 | 10.53.116.1 – 10.53.119.254 | 10.53.119.255 |
| 95 | 10.53.120.0/22 | 10.53.120.1 – 10.53.123.254 | 10.53.123.255 |
| 96 | 10.53.124.0/22 | 10.53.124.1 – 10.53.127.254 | 10.53.127.255 |
| 97 | 10.53.128.0/22 | 10.53.128.1 – 10.53.131.254 | 10.53.131.255 |
| 98 | 10.53.132.0/22 | 10.53.132.1 – 10.53.135.254 | 10.53.135.255 |
| 99 | 10.53.136.0/22 | 10.53.136.1 – 10.53.139.254 | 10.53.139.255 |
| 100 | 10.53.140.0/22 | 10.53.140.1 – 10.53.143.254 | 10.53.143.255 |
| 101 | 10.53.144.0/22 | 10.53.144.1 – 10.53.147.254 | 10.53.147.255 |
| 102 | 10.53.148.0/22 | 10.53.148.1 – 10.53.151.254 | 10.53.151.255 |
| 103 | 10.53.152.0/22 | 10.53.152.1 – 10.53.155.254 | 10.53.155.255 |
| 104 | 10.53.156.0/22 | 10.53.156.1 – 10.53.159.254 | 10.53.159.255 |
| 105 | 10.53.160.0/22 | 10.53.160.1 – 10.53.163.254 | 10.53.163.255 |
| 106 | 10.53.164.0/22 | 10.53.164.1 – 10.53.167.254 | 10.53.167.255 |
| 107 | 10.53.168.0/22 | 10.53.168.1 – 10.53.171.254 | 10.53.171.255 |
| 108 | 10.53.172.0/22 | 10.53.172.1 – 10.53.175.254 | 10.53.175.255 |
| 109 | 10.53.176.0/22 | 10.53.176.1 – 10.53.179.254 | 10.53.179.255 |
| 110 | 10.53.180.0/22 | 10.53.180.1 – 10.53.183.254 | 10.53.183.255 |
| 111 | 10.53.184.0/22 | 10.53.184.1 – 10.53.187.254 | 10.53.187.255 |
| 112 | 10.53.188.0/22 | 10.53.188.1 – 10.53.191.254 | 10.53.191.255 |
| 113 | 10.53.192.0/22 | 10.53.192.1 – 10.53.195.254 | 10.53.195.255 |
| 114 | 10.53.196.0/22 | 10.53.196.1 – 10.53.199.254 | 10.53.199.255 |
| 115 | 10.53.200.0/22 | 10.53.200.1 – 10.53.203.254 | 10.53.203.255 |
| 116 | 10.53.204.0/22 | 10.53.204.1 – 10.53.207.254 | 10.53.207.255 |
| 117 | 10.53.208.0/22 | 10.53.208.1 – 10.53.211.254 | 10.53.211.255 |
| 118 | 10.53.212.0/22 | 10.53.212.1 – 10.53.215.254 | 10.53.215.255 |
| 119 | 10.53.216.0/22 | 10.53.216.1 – 10.53.219.254 | 10.53.219.255 |
| 120 | 10.53.220.0/22 | 10.53.220.1 – 10.53.223.254 | 10.53.223.255 |
| 121 | 10.53.224.0/22 | 10.53.224.1 – 10.53.227.254 | 10.53.227.255 |
| 122 | 10.53.228.0/22 | 10.53.228.1 – 10.53.231.254 | 10.53.231.255 |
| 123 | 10.53.232.0/22 | 10.53.232.1 – 10.53.235.254 | 10.53.235.255 |
| 124 | 10.53.236.0/22 | 10.53.236.1 – 10.53.239.254 | 10.53.239.255 |
| 125 | 10.53.240.0/22 | 10.53.240.1 – 10.53.243.254 | 10.53.243.255 |
| 126 | 10.53.244.0/22 | 10.53.244.1 – 10.53.247.254 | 10.53.247.255 |
| 127 | 10.53.248.0/22 | 10.53.248.1 – 10.53.251.254 | 10.53.251.255 |
| 128 | 10.53.252.0/22 | 10.53.252.1 – 10.53.255.254 | 10.53.255.255 |
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 /15 |
|---|---|---|---|---|
| /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 | 1 |
| /16 | 255.255.0.0 | 65,536 | 65,534 | 2 split → |
| /17 | 255.255.128.0 | 32,768 | 32,766 | 4 split → |
| /18 | 255.255.192.0 | 16,384 | 16,382 | 8 split → |
| /19 | 255.255.224.0 | 8,192 | 8,190 | 16 split → |
| /20 | 255.255.240.0 | 4,096 | 4,094 | 32 split → |
| /21 | 255.255.248.0 | 2,048 | 2,046 | 64 split → |
| /22 | 255.255.252.0 | 1,024 | 1,022 | 128 split → |
| /23 | 255.255.254.0 | 512 | 510 | 256 split → |
| /24 | 255.255.255.0 | 256 | 254 | 512 split → |
| /25 | 255.255.255.128 | 128 | 126 | 1,024 split → |
| /26 | 255.255.255.192 | 64 | 62 | 2,048 split → |
| /27 | 255.255.255.224 | 32 | 30 | 4,096 split → |
| /28 | 255.255.255.240 | 16 | 14 | 8,192 split → |
| /29 | 255.255.255.248 | 8 | 6 | 16,384 split → |
| /30 | 255.255.255.252 | 4 | 2 | 32,768 split → |
| /31 | 255.255.255.254 | 2 | 2 | 65,536 split → |
| /32 | 255.255.255.255 | 1 | 1 | 131,072 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.