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)10.152.0.0/13
network10.152.0.0/13
broadcast10.159.255.255
first host10.152.0.1
last host10.159.255.254
subnet mask255.248.0.0
wildcard0.7.255.255
addresses524,288
usable hosts524,286
classA
ipcalc 10.152.0.0/13
address00001010.10011000.00000000.00000000
subnet mask11111111.11111000.00000000.00000000
network00001010.10011000.00000000.00000000
broadcast00001010.10011111.11111111.11111111
green = network part, grey = host part
hex0x0a980000
decimal177733632
reverse dns0.0.152.10.in-addr.arpa
ipv4-mapped::ffff:a98:0
/13 split into /20 · 128 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 10.152.0.0/20 | 10.152.0.1 – 10.152.15.254 | 10.152.15.255 |
| 2 | 10.152.16.0/20 | 10.152.16.1 – 10.152.31.254 | 10.152.31.255 |
| 3 | 10.152.32.0/20 | 10.152.32.1 – 10.152.47.254 | 10.152.47.255 |
| 4 | 10.152.48.0/20 | 10.152.48.1 – 10.152.63.254 | 10.152.63.255 |
| 5 | 10.152.64.0/20 | 10.152.64.1 – 10.152.79.254 | 10.152.79.255 |
| 6 | 10.152.80.0/20 | 10.152.80.1 – 10.152.95.254 | 10.152.95.255 |
| 7 | 10.152.96.0/20 | 10.152.96.1 – 10.152.111.254 | 10.152.111.255 |
| 8 | 10.152.112.0/20 | 10.152.112.1 – 10.152.127.254 | 10.152.127.255 |
| 9 | 10.152.128.0/20 | 10.152.128.1 – 10.152.143.254 | 10.152.143.255 |
| 10 | 10.152.144.0/20 | 10.152.144.1 – 10.152.159.254 | 10.152.159.255 |
| 11 | 10.152.160.0/20 | 10.152.160.1 – 10.152.175.254 | 10.152.175.255 |
| 12 | 10.152.176.0/20 | 10.152.176.1 – 10.152.191.254 | 10.152.191.255 |
| 13 | 10.152.192.0/20 | 10.152.192.1 – 10.152.207.254 | 10.152.207.255 |
| 14 | 10.152.208.0/20 | 10.152.208.1 – 10.152.223.254 | 10.152.223.255 |
| 15 | 10.152.224.0/20 | 10.152.224.1 – 10.152.239.254 | 10.152.239.255 |
| 16 | 10.152.240.0/20 | 10.152.240.1 – 10.152.255.254 | 10.152.255.255 |
| 17 | 10.153.0.0/20 | 10.153.0.1 – 10.153.15.254 | 10.153.15.255 |
| 18 | 10.153.16.0/20 | 10.153.16.1 – 10.153.31.254 | 10.153.31.255 |
| 19 | 10.153.32.0/20 | 10.153.32.1 – 10.153.47.254 | 10.153.47.255 |
| 20 | 10.153.48.0/20 | 10.153.48.1 – 10.153.63.254 | 10.153.63.255 |
| 21 | 10.153.64.0/20 | 10.153.64.1 – 10.153.79.254 | 10.153.79.255 |
| 22 | 10.153.80.0/20 | 10.153.80.1 – 10.153.95.254 | 10.153.95.255 |
| 23 | 10.153.96.0/20 | 10.153.96.1 – 10.153.111.254 | 10.153.111.255 |
| 24 | 10.153.112.0/20 | 10.153.112.1 – 10.153.127.254 | 10.153.127.255 |
| 25 | 10.153.128.0/20 | 10.153.128.1 – 10.153.143.254 | 10.153.143.255 |
| 26 | 10.153.144.0/20 | 10.153.144.1 – 10.153.159.254 | 10.153.159.255 |
| 27 | 10.153.160.0/20 | 10.153.160.1 – 10.153.175.254 | 10.153.175.255 |
| 28 | 10.153.176.0/20 | 10.153.176.1 – 10.153.191.254 | 10.153.191.255 |
| 29 | 10.153.192.0/20 | 10.153.192.1 – 10.153.207.254 | 10.153.207.255 |
| 30 | 10.153.208.0/20 | 10.153.208.1 – 10.153.223.254 | 10.153.223.255 |
| 31 | 10.153.224.0/20 | 10.153.224.1 – 10.153.239.254 | 10.153.239.255 |
| 32 | 10.153.240.0/20 | 10.153.240.1 – 10.153.255.254 | 10.153.255.255 |
| 33 | 10.154.0.0/20 | 10.154.0.1 – 10.154.15.254 | 10.154.15.255 |
| 34 | 10.154.16.0/20 | 10.154.16.1 – 10.154.31.254 | 10.154.31.255 |
| 35 | 10.154.32.0/20 | 10.154.32.1 – 10.154.47.254 | 10.154.47.255 |
| 36 | 10.154.48.0/20 | 10.154.48.1 – 10.154.63.254 | 10.154.63.255 |
| 37 | 10.154.64.0/20 | 10.154.64.1 – 10.154.79.254 | 10.154.79.255 |
| 38 | 10.154.80.0/20 | 10.154.80.1 – 10.154.95.254 | 10.154.95.255 |
| 39 | 10.154.96.0/20 | 10.154.96.1 – 10.154.111.254 | 10.154.111.255 |
| 40 | 10.154.112.0/20 | 10.154.112.1 – 10.154.127.254 | 10.154.127.255 |
| 41 | 10.154.128.0/20 | 10.154.128.1 – 10.154.143.254 | 10.154.143.255 |
| 42 | 10.154.144.0/20 | 10.154.144.1 – 10.154.159.254 | 10.154.159.255 |
| 43 | 10.154.160.0/20 | 10.154.160.1 – 10.154.175.254 | 10.154.175.255 |
| 44 | 10.154.176.0/20 | 10.154.176.1 – 10.154.191.254 | 10.154.191.255 |
| 45 | 10.154.192.0/20 | 10.154.192.1 – 10.154.207.254 | 10.154.207.255 |
| 46 | 10.154.208.0/20 | 10.154.208.1 – 10.154.223.254 | 10.154.223.255 |
| 47 | 10.154.224.0/20 | 10.154.224.1 – 10.154.239.254 | 10.154.239.255 |
| 48 | 10.154.240.0/20 | 10.154.240.1 – 10.154.255.254 | 10.154.255.255 |
| 49 | 10.155.0.0/20 | 10.155.0.1 – 10.155.15.254 | 10.155.15.255 |
| 50 | 10.155.16.0/20 | 10.155.16.1 – 10.155.31.254 | 10.155.31.255 |
| 51 | 10.155.32.0/20 | 10.155.32.1 – 10.155.47.254 | 10.155.47.255 |
| 52 | 10.155.48.0/20 | 10.155.48.1 – 10.155.63.254 | 10.155.63.255 |
| 53 | 10.155.64.0/20 | 10.155.64.1 – 10.155.79.254 | 10.155.79.255 |
| 54 | 10.155.80.0/20 | 10.155.80.1 – 10.155.95.254 | 10.155.95.255 |
| 55 | 10.155.96.0/20 | 10.155.96.1 – 10.155.111.254 | 10.155.111.255 |
| 56 | 10.155.112.0/20 | 10.155.112.1 – 10.155.127.254 | 10.155.127.255 |
| 57 | 10.155.128.0/20 | 10.155.128.1 – 10.155.143.254 | 10.155.143.255 |
| 58 | 10.155.144.0/20 | 10.155.144.1 – 10.155.159.254 | 10.155.159.255 |
| 59 | 10.155.160.0/20 | 10.155.160.1 – 10.155.175.254 | 10.155.175.255 |
| 60 | 10.155.176.0/20 | 10.155.176.1 – 10.155.191.254 | 10.155.191.255 |
| 61 | 10.155.192.0/20 | 10.155.192.1 – 10.155.207.254 | 10.155.207.255 |
| 62 | 10.155.208.0/20 | 10.155.208.1 – 10.155.223.254 | 10.155.223.255 |
| 63 | 10.155.224.0/20 | 10.155.224.1 – 10.155.239.254 | 10.155.239.255 |
| 64 | 10.155.240.0/20 | 10.155.240.1 – 10.155.255.254 | 10.155.255.255 |
| 65 | 10.156.0.0/20 | 10.156.0.1 – 10.156.15.254 | 10.156.15.255 |
| 66 | 10.156.16.0/20 | 10.156.16.1 – 10.156.31.254 | 10.156.31.255 |
| 67 | 10.156.32.0/20 | 10.156.32.1 – 10.156.47.254 | 10.156.47.255 |
| 68 | 10.156.48.0/20 | 10.156.48.1 – 10.156.63.254 | 10.156.63.255 |
| 69 | 10.156.64.0/20 | 10.156.64.1 – 10.156.79.254 | 10.156.79.255 |
| 70 | 10.156.80.0/20 | 10.156.80.1 – 10.156.95.254 | 10.156.95.255 |
| 71 | 10.156.96.0/20 | 10.156.96.1 – 10.156.111.254 | 10.156.111.255 |
| 72 | 10.156.112.0/20 | 10.156.112.1 – 10.156.127.254 | 10.156.127.255 |
| 73 | 10.156.128.0/20 | 10.156.128.1 – 10.156.143.254 | 10.156.143.255 |
| 74 | 10.156.144.0/20 | 10.156.144.1 – 10.156.159.254 | 10.156.159.255 |
| 75 | 10.156.160.0/20 | 10.156.160.1 – 10.156.175.254 | 10.156.175.255 |
| 76 | 10.156.176.0/20 | 10.156.176.1 – 10.156.191.254 | 10.156.191.255 |
| 77 | 10.156.192.0/20 | 10.156.192.1 – 10.156.207.254 | 10.156.207.255 |
| 78 | 10.156.208.0/20 | 10.156.208.1 – 10.156.223.254 | 10.156.223.255 |
| 79 | 10.156.224.0/20 | 10.156.224.1 – 10.156.239.254 | 10.156.239.255 |
| 80 | 10.156.240.0/20 | 10.156.240.1 – 10.156.255.254 | 10.156.255.255 |
| 81 | 10.157.0.0/20 | 10.157.0.1 – 10.157.15.254 | 10.157.15.255 |
| 82 | 10.157.16.0/20 | 10.157.16.1 – 10.157.31.254 | 10.157.31.255 |
| 83 | 10.157.32.0/20 | 10.157.32.1 – 10.157.47.254 | 10.157.47.255 |
| 84 | 10.157.48.0/20 | 10.157.48.1 – 10.157.63.254 | 10.157.63.255 |
| 85 | 10.157.64.0/20 | 10.157.64.1 – 10.157.79.254 | 10.157.79.255 |
| 86 | 10.157.80.0/20 | 10.157.80.1 – 10.157.95.254 | 10.157.95.255 |
| 87 | 10.157.96.0/20 | 10.157.96.1 – 10.157.111.254 | 10.157.111.255 |
| 88 | 10.157.112.0/20 | 10.157.112.1 – 10.157.127.254 | 10.157.127.255 |
| 89 | 10.157.128.0/20 | 10.157.128.1 – 10.157.143.254 | 10.157.143.255 |
| 90 | 10.157.144.0/20 | 10.157.144.1 – 10.157.159.254 | 10.157.159.255 |
| 91 | 10.157.160.0/20 | 10.157.160.1 – 10.157.175.254 | 10.157.175.255 |
| 92 | 10.157.176.0/20 | 10.157.176.1 – 10.157.191.254 | 10.157.191.255 |
| 93 | 10.157.192.0/20 | 10.157.192.1 – 10.157.207.254 | 10.157.207.255 |
| 94 | 10.157.208.0/20 | 10.157.208.1 – 10.157.223.254 | 10.157.223.255 |
| 95 | 10.157.224.0/20 | 10.157.224.1 – 10.157.239.254 | 10.157.239.255 |
| 96 | 10.157.240.0/20 | 10.157.240.1 – 10.157.255.254 | 10.157.255.255 |
| 97 | 10.158.0.0/20 | 10.158.0.1 – 10.158.15.254 | 10.158.15.255 |
| 98 | 10.158.16.0/20 | 10.158.16.1 – 10.158.31.254 | 10.158.31.255 |
| 99 | 10.158.32.0/20 | 10.158.32.1 – 10.158.47.254 | 10.158.47.255 |
| 100 | 10.158.48.0/20 | 10.158.48.1 – 10.158.63.254 | 10.158.63.255 |
| 101 | 10.158.64.0/20 | 10.158.64.1 – 10.158.79.254 | 10.158.79.255 |
| 102 | 10.158.80.0/20 | 10.158.80.1 – 10.158.95.254 | 10.158.95.255 |
| 103 | 10.158.96.0/20 | 10.158.96.1 – 10.158.111.254 | 10.158.111.255 |
| 104 | 10.158.112.0/20 | 10.158.112.1 – 10.158.127.254 | 10.158.127.255 |
| 105 | 10.158.128.0/20 | 10.158.128.1 – 10.158.143.254 | 10.158.143.255 |
| 106 | 10.158.144.0/20 | 10.158.144.1 – 10.158.159.254 | 10.158.159.255 |
| 107 | 10.158.160.0/20 | 10.158.160.1 – 10.158.175.254 | 10.158.175.255 |
| 108 | 10.158.176.0/20 | 10.158.176.1 – 10.158.191.254 | 10.158.191.255 |
| 109 | 10.158.192.0/20 | 10.158.192.1 – 10.158.207.254 | 10.158.207.255 |
| 110 | 10.158.208.0/20 | 10.158.208.1 – 10.158.223.254 | 10.158.223.255 |
| 111 | 10.158.224.0/20 | 10.158.224.1 – 10.158.239.254 | 10.158.239.255 |
| 112 | 10.158.240.0/20 | 10.158.240.1 – 10.158.255.254 | 10.158.255.255 |
| 113 | 10.159.0.0/20 | 10.159.0.1 – 10.159.15.254 | 10.159.15.255 |
| 114 | 10.159.16.0/20 | 10.159.16.1 – 10.159.31.254 | 10.159.31.255 |
| 115 | 10.159.32.0/20 | 10.159.32.1 – 10.159.47.254 | 10.159.47.255 |
| 116 | 10.159.48.0/20 | 10.159.48.1 – 10.159.63.254 | 10.159.63.255 |
| 117 | 10.159.64.0/20 | 10.159.64.1 – 10.159.79.254 | 10.159.79.255 |
| 118 | 10.159.80.0/20 | 10.159.80.1 – 10.159.95.254 | 10.159.95.255 |
| 119 | 10.159.96.0/20 | 10.159.96.1 – 10.159.111.254 | 10.159.111.255 |
| 120 | 10.159.112.0/20 | 10.159.112.1 – 10.159.127.254 | 10.159.127.255 |
| 121 | 10.159.128.0/20 | 10.159.128.1 – 10.159.143.254 | 10.159.143.255 |
| 122 | 10.159.144.0/20 | 10.159.144.1 – 10.159.159.254 | 10.159.159.255 |
| 123 | 10.159.160.0/20 | 10.159.160.1 – 10.159.175.254 | 10.159.175.255 |
| 124 | 10.159.176.0/20 | 10.159.176.1 – 10.159.191.254 | 10.159.191.255 |
| 125 | 10.159.192.0/20 | 10.159.192.1 – 10.159.207.254 | 10.159.207.255 |
| 126 | 10.159.208.0/20 | 10.159.208.1 – 10.159.223.254 | 10.159.223.255 |
| 127 | 10.159.224.0/20 | 10.159.224.1 – 10.159.239.254 | 10.159.239.255 |
| 128 | 10.159.240.0/20 | 10.159.240.1 – 10.159.255.254 | 10.159.255.255 |
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 /13 |
|---|---|---|---|---|
| /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 | 1 |
| /14 | 255.252.0.0 | 262,144 | 262,142 | 2 split → |
| /15 | 255.254.0.0 | 131,072 | 131,070 | 4 split → |
| /16 | 255.255.0.0 | 65,536 | 65,534 | 8 split → |
| /17 | 255.255.128.0 | 32,768 | 32,766 | 16 split → |
| /18 | 255.255.192.0 | 16,384 | 16,382 | 32 split → |
| /19 | 255.255.224.0 | 8,192 | 8,190 | 64 split → |
| /20 | 255.255.240.0 | 4,096 | 4,094 | 128 split → |
| /21 | 255.255.248.0 | 2,048 | 2,046 | 256 split → |
| /22 | 255.255.252.0 | 1,024 | 1,022 | 512 split → |
| /23 | 255.255.254.0 | 512 | 510 | 1,024 split → |
| /24 | 255.255.255.0 | 256 | 254 | 2,048 split → |
| /25 | 255.255.255.128 | 128 | 126 | 4,096 split → |
| /26 | 255.255.255.192 | 64 | 62 | 8,192 split → |
| /27 | 255.255.255.224 | 32 | 30 | 16,384 split → |
| /28 | 255.255.255.240 | 16 | 14 | 32,768 split → |
| /29 | 255.255.255.248 | 8 | 6 | 65,536 split → |
| /30 | 255.255.255.252 | 4 | 2 | 131,072 split → |
| /31 | 255.255.255.254 | 2 | 2 | 262,144 split → |
| /32 | 255.255.255.255 | 1 | 1 | 524,288 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.