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)10.114.0.0/15
network10.114.0.0/15
broadcast10.115.255.255
first host10.114.0.1
last host10.115.255.254
subnet mask255.254.0.0
wildcard0.1.255.255
addresses131,072
usable hosts131,070
classA
ipcalc 10.114.0.0/15
address00001010.01110010.00000000.00000000
subnet mask11111111.11111110.00000000.00000000
network00001010.01110010.00000000.00000000
broadcast00001010.01110011.11111111.11111111
green = network part, grey = host part
hex0x0a720000
decimal175243264
reverse dns0.0.114.10.in-addr.arpa
ipv4-mapped::ffff:a72:0
/15 split into /22 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.114.0.0/22 | 10.114.0.1 – 10.114.3.254 | 10.114.3.255 |
| 2 | 10.114.4.0/22 | 10.114.4.1 – 10.114.7.254 | 10.114.7.255 |
| 3 | 10.114.8.0/22 | 10.114.8.1 – 10.114.11.254 | 10.114.11.255 |
| 4 | 10.114.12.0/22 | 10.114.12.1 – 10.114.15.254 | 10.114.15.255 |
| 5 | 10.114.16.0/22 | 10.114.16.1 – 10.114.19.254 | 10.114.19.255 |
| 6 | 10.114.20.0/22 | 10.114.20.1 – 10.114.23.254 | 10.114.23.255 |
| 7 | 10.114.24.0/22 | 10.114.24.1 – 10.114.27.254 | 10.114.27.255 |
| 8 | 10.114.28.0/22 | 10.114.28.1 – 10.114.31.254 | 10.114.31.255 |
| 9 | 10.114.32.0/22 | 10.114.32.1 – 10.114.35.254 | 10.114.35.255 |
| 10 | 10.114.36.0/22 | 10.114.36.1 – 10.114.39.254 | 10.114.39.255 |
| 11 | 10.114.40.0/22 | 10.114.40.1 – 10.114.43.254 | 10.114.43.255 |
| 12 | 10.114.44.0/22 | 10.114.44.1 – 10.114.47.254 | 10.114.47.255 |
| 13 | 10.114.48.0/22 | 10.114.48.1 – 10.114.51.254 | 10.114.51.255 |
| 14 | 10.114.52.0/22 | 10.114.52.1 – 10.114.55.254 | 10.114.55.255 |
| 15 | 10.114.56.0/22 | 10.114.56.1 – 10.114.59.254 | 10.114.59.255 |
| 16 | 10.114.60.0/22 | 10.114.60.1 – 10.114.63.254 | 10.114.63.255 |
| 17 | 10.114.64.0/22 | 10.114.64.1 – 10.114.67.254 | 10.114.67.255 |
| 18 | 10.114.68.0/22 | 10.114.68.1 – 10.114.71.254 | 10.114.71.255 |
| 19 | 10.114.72.0/22 | 10.114.72.1 – 10.114.75.254 | 10.114.75.255 |
| 20 | 10.114.76.0/22 | 10.114.76.1 – 10.114.79.254 | 10.114.79.255 |
| 21 | 10.114.80.0/22 | 10.114.80.1 – 10.114.83.254 | 10.114.83.255 |
| 22 | 10.114.84.0/22 | 10.114.84.1 – 10.114.87.254 | 10.114.87.255 |
| 23 | 10.114.88.0/22 | 10.114.88.1 – 10.114.91.254 | 10.114.91.255 |
| 24 | 10.114.92.0/22 | 10.114.92.1 – 10.114.95.254 | 10.114.95.255 |
| 25 | 10.114.96.0/22 | 10.114.96.1 – 10.114.99.254 | 10.114.99.255 |
| 26 | 10.114.100.0/22 | 10.114.100.1 – 10.114.103.254 | 10.114.103.255 |
| 27 | 10.114.104.0/22 | 10.114.104.1 – 10.114.107.254 | 10.114.107.255 |
| 28 | 10.114.108.0/22 | 10.114.108.1 – 10.114.111.254 | 10.114.111.255 |
| 29 | 10.114.112.0/22 | 10.114.112.1 – 10.114.115.254 | 10.114.115.255 |
| 30 | 10.114.116.0/22 | 10.114.116.1 – 10.114.119.254 | 10.114.119.255 |
| 31 | 10.114.120.0/22 | 10.114.120.1 – 10.114.123.254 | 10.114.123.255 |
| 32 | 10.114.124.0/22 | 10.114.124.1 – 10.114.127.254 | 10.114.127.255 |
| 33 | 10.114.128.0/22 | 10.114.128.1 – 10.114.131.254 | 10.114.131.255 |
| 34 | 10.114.132.0/22 | 10.114.132.1 – 10.114.135.254 | 10.114.135.255 |
| 35 | 10.114.136.0/22 | 10.114.136.1 – 10.114.139.254 | 10.114.139.255 |
| 36 | 10.114.140.0/22 | 10.114.140.1 – 10.114.143.254 | 10.114.143.255 |
| 37 | 10.114.144.0/22 | 10.114.144.1 – 10.114.147.254 | 10.114.147.255 |
| 38 | 10.114.148.0/22 | 10.114.148.1 – 10.114.151.254 | 10.114.151.255 |
| 39 | 10.114.152.0/22 | 10.114.152.1 – 10.114.155.254 | 10.114.155.255 |
| 40 | 10.114.156.0/22 | 10.114.156.1 – 10.114.159.254 | 10.114.159.255 |
| 41 | 10.114.160.0/22 | 10.114.160.1 – 10.114.163.254 | 10.114.163.255 |
| 42 | 10.114.164.0/22 | 10.114.164.1 – 10.114.167.254 | 10.114.167.255 |
| 43 | 10.114.168.0/22 | 10.114.168.1 – 10.114.171.254 | 10.114.171.255 |
| 44 | 10.114.172.0/22 | 10.114.172.1 – 10.114.175.254 | 10.114.175.255 |
| 45 | 10.114.176.0/22 | 10.114.176.1 – 10.114.179.254 | 10.114.179.255 |
| 46 | 10.114.180.0/22 | 10.114.180.1 – 10.114.183.254 | 10.114.183.255 |
| 47 | 10.114.184.0/22 | 10.114.184.1 – 10.114.187.254 | 10.114.187.255 |
| 48 | 10.114.188.0/22 | 10.114.188.1 – 10.114.191.254 | 10.114.191.255 |
| 49 | 10.114.192.0/22 | 10.114.192.1 – 10.114.195.254 | 10.114.195.255 |
| 50 | 10.114.196.0/22 | 10.114.196.1 – 10.114.199.254 | 10.114.199.255 |
| 51 | 10.114.200.0/22 | 10.114.200.1 – 10.114.203.254 | 10.114.203.255 |
| 52 | 10.114.204.0/22 | 10.114.204.1 – 10.114.207.254 | 10.114.207.255 |
| 53 | 10.114.208.0/22 | 10.114.208.1 – 10.114.211.254 | 10.114.211.255 |
| 54 | 10.114.212.0/22 | 10.114.212.1 – 10.114.215.254 | 10.114.215.255 |
| 55 | 10.114.216.0/22 | 10.114.216.1 – 10.114.219.254 | 10.114.219.255 |
| 56 | 10.114.220.0/22 | 10.114.220.1 – 10.114.223.254 | 10.114.223.255 |
| 57 | 10.114.224.0/22 | 10.114.224.1 – 10.114.227.254 | 10.114.227.255 |
| 58 | 10.114.228.0/22 | 10.114.228.1 – 10.114.231.254 | 10.114.231.255 |
| 59 | 10.114.232.0/22 | 10.114.232.1 – 10.114.235.254 | 10.114.235.255 |
| 60 | 10.114.236.0/22 | 10.114.236.1 – 10.114.239.254 | 10.114.239.255 |
| 61 | 10.114.240.0/22 | 10.114.240.1 – 10.114.243.254 | 10.114.243.255 |
| 62 | 10.114.244.0/22 | 10.114.244.1 – 10.114.247.254 | 10.114.247.255 |
| 63 | 10.114.248.0/22 | 10.114.248.1 – 10.114.251.254 | 10.114.251.255 |
| 64 | 10.114.252.0/22 | 10.114.252.1 – 10.114.255.254 | 10.114.255.255 |
| 65 | 10.115.0.0/22 | 10.115.0.1 – 10.115.3.254 | 10.115.3.255 |
| 66 | 10.115.4.0/22 | 10.115.4.1 – 10.115.7.254 | 10.115.7.255 |
| 67 | 10.115.8.0/22 | 10.115.8.1 – 10.115.11.254 | 10.115.11.255 |
| 68 | 10.115.12.0/22 | 10.115.12.1 – 10.115.15.254 | 10.115.15.255 |
| 69 | 10.115.16.0/22 | 10.115.16.1 – 10.115.19.254 | 10.115.19.255 |
| 70 | 10.115.20.0/22 | 10.115.20.1 – 10.115.23.254 | 10.115.23.255 |
| 71 | 10.115.24.0/22 | 10.115.24.1 – 10.115.27.254 | 10.115.27.255 |
| 72 | 10.115.28.0/22 | 10.115.28.1 – 10.115.31.254 | 10.115.31.255 |
| 73 | 10.115.32.0/22 | 10.115.32.1 – 10.115.35.254 | 10.115.35.255 |
| 74 | 10.115.36.0/22 | 10.115.36.1 – 10.115.39.254 | 10.115.39.255 |
| 75 | 10.115.40.0/22 | 10.115.40.1 – 10.115.43.254 | 10.115.43.255 |
| 76 | 10.115.44.0/22 | 10.115.44.1 – 10.115.47.254 | 10.115.47.255 |
| 77 | 10.115.48.0/22 | 10.115.48.1 – 10.115.51.254 | 10.115.51.255 |
| 78 | 10.115.52.0/22 | 10.115.52.1 – 10.115.55.254 | 10.115.55.255 |
| 79 | 10.115.56.0/22 | 10.115.56.1 – 10.115.59.254 | 10.115.59.255 |
| 80 | 10.115.60.0/22 | 10.115.60.1 – 10.115.63.254 | 10.115.63.255 |
| 81 | 10.115.64.0/22 | 10.115.64.1 – 10.115.67.254 | 10.115.67.255 |
| 82 | 10.115.68.0/22 | 10.115.68.1 – 10.115.71.254 | 10.115.71.255 |
| 83 | 10.115.72.0/22 | 10.115.72.1 – 10.115.75.254 | 10.115.75.255 |
| 84 | 10.115.76.0/22 | 10.115.76.1 – 10.115.79.254 | 10.115.79.255 |
| 85 | 10.115.80.0/22 | 10.115.80.1 – 10.115.83.254 | 10.115.83.255 |
| 86 | 10.115.84.0/22 | 10.115.84.1 – 10.115.87.254 | 10.115.87.255 |
| 87 | 10.115.88.0/22 | 10.115.88.1 – 10.115.91.254 | 10.115.91.255 |
| 88 | 10.115.92.0/22 | 10.115.92.1 – 10.115.95.254 | 10.115.95.255 |
| 89 | 10.115.96.0/22 | 10.115.96.1 – 10.115.99.254 | 10.115.99.255 |
| 90 | 10.115.100.0/22 | 10.115.100.1 – 10.115.103.254 | 10.115.103.255 |
| 91 | 10.115.104.0/22 | 10.115.104.1 – 10.115.107.254 | 10.115.107.255 |
| 92 | 10.115.108.0/22 | 10.115.108.1 – 10.115.111.254 | 10.115.111.255 |
| 93 | 10.115.112.0/22 | 10.115.112.1 – 10.115.115.254 | 10.115.115.255 |
| 94 | 10.115.116.0/22 | 10.115.116.1 – 10.115.119.254 | 10.115.119.255 |
| 95 | 10.115.120.0/22 | 10.115.120.1 – 10.115.123.254 | 10.115.123.255 |
| 96 | 10.115.124.0/22 | 10.115.124.1 – 10.115.127.254 | 10.115.127.255 |
| 97 | 10.115.128.0/22 | 10.115.128.1 – 10.115.131.254 | 10.115.131.255 |
| 98 | 10.115.132.0/22 | 10.115.132.1 – 10.115.135.254 | 10.115.135.255 |
| 99 | 10.115.136.0/22 | 10.115.136.1 – 10.115.139.254 | 10.115.139.255 |
| 100 | 10.115.140.0/22 | 10.115.140.1 – 10.115.143.254 | 10.115.143.255 |
| 101 | 10.115.144.0/22 | 10.115.144.1 – 10.115.147.254 | 10.115.147.255 |
| 102 | 10.115.148.0/22 | 10.115.148.1 – 10.115.151.254 | 10.115.151.255 |
| 103 | 10.115.152.0/22 | 10.115.152.1 – 10.115.155.254 | 10.115.155.255 |
| 104 | 10.115.156.0/22 | 10.115.156.1 – 10.115.159.254 | 10.115.159.255 |
| 105 | 10.115.160.0/22 | 10.115.160.1 – 10.115.163.254 | 10.115.163.255 |
| 106 | 10.115.164.0/22 | 10.115.164.1 – 10.115.167.254 | 10.115.167.255 |
| 107 | 10.115.168.0/22 | 10.115.168.1 – 10.115.171.254 | 10.115.171.255 |
| 108 | 10.115.172.0/22 | 10.115.172.1 – 10.115.175.254 | 10.115.175.255 |
| 109 | 10.115.176.0/22 | 10.115.176.1 – 10.115.179.254 | 10.115.179.255 |
| 110 | 10.115.180.0/22 | 10.115.180.1 – 10.115.183.254 | 10.115.183.255 |
| 111 | 10.115.184.0/22 | 10.115.184.1 – 10.115.187.254 | 10.115.187.255 |
| 112 | 10.115.188.0/22 | 10.115.188.1 – 10.115.191.254 | 10.115.191.255 |
| 113 | 10.115.192.0/22 | 10.115.192.1 – 10.115.195.254 | 10.115.195.255 |
| 114 | 10.115.196.0/22 | 10.115.196.1 – 10.115.199.254 | 10.115.199.255 |
| 115 | 10.115.200.0/22 | 10.115.200.1 – 10.115.203.254 | 10.115.203.255 |
| 116 | 10.115.204.0/22 | 10.115.204.1 – 10.115.207.254 | 10.115.207.255 |
| 117 | 10.115.208.0/22 | 10.115.208.1 – 10.115.211.254 | 10.115.211.255 |
| 118 | 10.115.212.0/22 | 10.115.212.1 – 10.115.215.254 | 10.115.215.255 |
| 119 | 10.115.216.0/22 | 10.115.216.1 – 10.115.219.254 | 10.115.219.255 |
| 120 | 10.115.220.0/22 | 10.115.220.1 – 10.115.223.254 | 10.115.223.255 |
| 121 | 10.115.224.0/22 | 10.115.224.1 – 10.115.227.254 | 10.115.227.255 |
| 122 | 10.115.228.0/22 | 10.115.228.1 – 10.115.231.254 | 10.115.231.255 |
| 123 | 10.115.232.0/22 | 10.115.232.1 – 10.115.235.254 | 10.115.235.255 |
| 124 | 10.115.236.0/22 | 10.115.236.1 – 10.115.239.254 | 10.115.239.255 |
| 125 | 10.115.240.0/22 | 10.115.240.1 – 10.115.243.254 | 10.115.243.255 |
| 126 | 10.115.244.0/22 | 10.115.244.1 – 10.115.247.254 | 10.115.247.255 |
| 127 | 10.115.248.0/22 | 10.115.248.1 – 10.115.251.254 | 10.115.251.255 |
| 128 | 10.115.252.0/22 | 10.115.252.1 – 10.115.255.254 | 10.115.255.255 |
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.