ip
ipku.in

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.

$ ipcalc
Try:192.168.1.10/2410.0.0.0/8172.16.5.4/20203.0.113.9/29
IPv6 calculator →
private IP (RFC 1918)10.26.0.0/16
network10.26.0.0/16
broadcast10.26.255.255
first host10.26.0.1
last host10.26.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.26.0.0/16
address00001010.00011010.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.00011010.00000000.00000000
broadcast00001010.00011010.11111111.11111111
green = network part, grey = host part
hex0x0a1a0000
decimal169476096
reverse dns0.0.26.10.in-addr.arpa
ipv4-mapped::ffff:a1a:0

/16 split into /23 · 128 subnets

close ×
#networkhost rangebroadcast
110.26.0.0/2310.26.0.1 – 10.26.1.25410.26.1.255
210.26.2.0/2310.26.2.1 – 10.26.3.25410.26.3.255
310.26.4.0/2310.26.4.1 – 10.26.5.25410.26.5.255
410.26.6.0/2310.26.6.1 – 10.26.7.25410.26.7.255
510.26.8.0/2310.26.8.1 – 10.26.9.25410.26.9.255
610.26.10.0/2310.26.10.1 – 10.26.11.25410.26.11.255
710.26.12.0/2310.26.12.1 – 10.26.13.25410.26.13.255
810.26.14.0/2310.26.14.1 – 10.26.15.25410.26.15.255
910.26.16.0/2310.26.16.1 – 10.26.17.25410.26.17.255
1010.26.18.0/2310.26.18.1 – 10.26.19.25410.26.19.255
1110.26.20.0/2310.26.20.1 – 10.26.21.25410.26.21.255
1210.26.22.0/2310.26.22.1 – 10.26.23.25410.26.23.255
1310.26.24.0/2310.26.24.1 – 10.26.25.25410.26.25.255
1410.26.26.0/2310.26.26.1 – 10.26.27.25410.26.27.255
1510.26.28.0/2310.26.28.1 – 10.26.29.25410.26.29.255
1610.26.30.0/2310.26.30.1 – 10.26.31.25410.26.31.255
1710.26.32.0/2310.26.32.1 – 10.26.33.25410.26.33.255
1810.26.34.0/2310.26.34.1 – 10.26.35.25410.26.35.255
1910.26.36.0/2310.26.36.1 – 10.26.37.25410.26.37.255
2010.26.38.0/2310.26.38.1 – 10.26.39.25410.26.39.255
2110.26.40.0/2310.26.40.1 – 10.26.41.25410.26.41.255
2210.26.42.0/2310.26.42.1 – 10.26.43.25410.26.43.255
2310.26.44.0/2310.26.44.1 – 10.26.45.25410.26.45.255
2410.26.46.0/2310.26.46.1 – 10.26.47.25410.26.47.255
2510.26.48.0/2310.26.48.1 – 10.26.49.25410.26.49.255
2610.26.50.0/2310.26.50.1 – 10.26.51.25410.26.51.255
2710.26.52.0/2310.26.52.1 – 10.26.53.25410.26.53.255
2810.26.54.0/2310.26.54.1 – 10.26.55.25410.26.55.255
2910.26.56.0/2310.26.56.1 – 10.26.57.25410.26.57.255
3010.26.58.0/2310.26.58.1 – 10.26.59.25410.26.59.255
3110.26.60.0/2310.26.60.1 – 10.26.61.25410.26.61.255
3210.26.62.0/2310.26.62.1 – 10.26.63.25410.26.63.255
3310.26.64.0/2310.26.64.1 – 10.26.65.25410.26.65.255
3410.26.66.0/2310.26.66.1 – 10.26.67.25410.26.67.255
3510.26.68.0/2310.26.68.1 – 10.26.69.25410.26.69.255
3610.26.70.0/2310.26.70.1 – 10.26.71.25410.26.71.255
3710.26.72.0/2310.26.72.1 – 10.26.73.25410.26.73.255
3810.26.74.0/2310.26.74.1 – 10.26.75.25410.26.75.255
3910.26.76.0/2310.26.76.1 – 10.26.77.25410.26.77.255
4010.26.78.0/2310.26.78.1 – 10.26.79.25410.26.79.255
4110.26.80.0/2310.26.80.1 – 10.26.81.25410.26.81.255
4210.26.82.0/2310.26.82.1 – 10.26.83.25410.26.83.255
4310.26.84.0/2310.26.84.1 – 10.26.85.25410.26.85.255
4410.26.86.0/2310.26.86.1 – 10.26.87.25410.26.87.255
4510.26.88.0/2310.26.88.1 – 10.26.89.25410.26.89.255
4610.26.90.0/2310.26.90.1 – 10.26.91.25410.26.91.255
4710.26.92.0/2310.26.92.1 – 10.26.93.25410.26.93.255
4810.26.94.0/2310.26.94.1 – 10.26.95.25410.26.95.255
4910.26.96.0/2310.26.96.1 – 10.26.97.25410.26.97.255
5010.26.98.0/2310.26.98.1 – 10.26.99.25410.26.99.255
5110.26.100.0/2310.26.100.1 – 10.26.101.25410.26.101.255
5210.26.102.0/2310.26.102.1 – 10.26.103.25410.26.103.255
5310.26.104.0/2310.26.104.1 – 10.26.105.25410.26.105.255
5410.26.106.0/2310.26.106.1 – 10.26.107.25410.26.107.255
5510.26.108.0/2310.26.108.1 – 10.26.109.25410.26.109.255
5610.26.110.0/2310.26.110.1 – 10.26.111.25410.26.111.255
5710.26.112.0/2310.26.112.1 – 10.26.113.25410.26.113.255
5810.26.114.0/2310.26.114.1 – 10.26.115.25410.26.115.255
5910.26.116.0/2310.26.116.1 – 10.26.117.25410.26.117.255
6010.26.118.0/2310.26.118.1 – 10.26.119.25410.26.119.255
6110.26.120.0/2310.26.120.1 – 10.26.121.25410.26.121.255
6210.26.122.0/2310.26.122.1 – 10.26.123.25410.26.123.255
6310.26.124.0/2310.26.124.1 – 10.26.125.25410.26.125.255
6410.26.126.0/2310.26.126.1 – 10.26.127.25410.26.127.255
6510.26.128.0/2310.26.128.1 – 10.26.129.25410.26.129.255
6610.26.130.0/2310.26.130.1 – 10.26.131.25410.26.131.255
6710.26.132.0/2310.26.132.1 – 10.26.133.25410.26.133.255
6810.26.134.0/2310.26.134.1 – 10.26.135.25410.26.135.255
6910.26.136.0/2310.26.136.1 – 10.26.137.25410.26.137.255
7010.26.138.0/2310.26.138.1 – 10.26.139.25410.26.139.255
7110.26.140.0/2310.26.140.1 – 10.26.141.25410.26.141.255
7210.26.142.0/2310.26.142.1 – 10.26.143.25410.26.143.255
7310.26.144.0/2310.26.144.1 – 10.26.145.25410.26.145.255
7410.26.146.0/2310.26.146.1 – 10.26.147.25410.26.147.255
7510.26.148.0/2310.26.148.1 – 10.26.149.25410.26.149.255
7610.26.150.0/2310.26.150.1 – 10.26.151.25410.26.151.255
7710.26.152.0/2310.26.152.1 – 10.26.153.25410.26.153.255
7810.26.154.0/2310.26.154.1 – 10.26.155.25410.26.155.255
7910.26.156.0/2310.26.156.1 – 10.26.157.25410.26.157.255
8010.26.158.0/2310.26.158.1 – 10.26.159.25410.26.159.255
8110.26.160.0/2310.26.160.1 – 10.26.161.25410.26.161.255
8210.26.162.0/2310.26.162.1 – 10.26.163.25410.26.163.255
8310.26.164.0/2310.26.164.1 – 10.26.165.25410.26.165.255
8410.26.166.0/2310.26.166.1 – 10.26.167.25410.26.167.255
8510.26.168.0/2310.26.168.1 – 10.26.169.25410.26.169.255
8610.26.170.0/2310.26.170.1 – 10.26.171.25410.26.171.255
8710.26.172.0/2310.26.172.1 – 10.26.173.25410.26.173.255
8810.26.174.0/2310.26.174.1 – 10.26.175.25410.26.175.255
8910.26.176.0/2310.26.176.1 – 10.26.177.25410.26.177.255
9010.26.178.0/2310.26.178.1 – 10.26.179.25410.26.179.255
9110.26.180.0/2310.26.180.1 – 10.26.181.25410.26.181.255
9210.26.182.0/2310.26.182.1 – 10.26.183.25410.26.183.255
9310.26.184.0/2310.26.184.1 – 10.26.185.25410.26.185.255
9410.26.186.0/2310.26.186.1 – 10.26.187.25410.26.187.255
9510.26.188.0/2310.26.188.1 – 10.26.189.25410.26.189.255
9610.26.190.0/2310.26.190.1 – 10.26.191.25410.26.191.255
9710.26.192.0/2310.26.192.1 – 10.26.193.25410.26.193.255
9810.26.194.0/2310.26.194.1 – 10.26.195.25410.26.195.255
9910.26.196.0/2310.26.196.1 – 10.26.197.25410.26.197.255
10010.26.198.0/2310.26.198.1 – 10.26.199.25410.26.199.255
10110.26.200.0/2310.26.200.1 – 10.26.201.25410.26.201.255
10210.26.202.0/2310.26.202.1 – 10.26.203.25410.26.203.255
10310.26.204.0/2310.26.204.1 – 10.26.205.25410.26.205.255
10410.26.206.0/2310.26.206.1 – 10.26.207.25410.26.207.255
10510.26.208.0/2310.26.208.1 – 10.26.209.25410.26.209.255
10610.26.210.0/2310.26.210.1 – 10.26.211.25410.26.211.255
10710.26.212.0/2310.26.212.1 – 10.26.213.25410.26.213.255
10810.26.214.0/2310.26.214.1 – 10.26.215.25410.26.215.255
10910.26.216.0/2310.26.216.1 – 10.26.217.25410.26.217.255
11010.26.218.0/2310.26.218.1 – 10.26.219.25410.26.219.255
11110.26.220.0/2310.26.220.1 – 10.26.221.25410.26.221.255
11210.26.222.0/2310.26.222.1 – 10.26.223.25410.26.223.255
11310.26.224.0/2310.26.224.1 – 10.26.225.25410.26.225.255
11410.26.226.0/2310.26.226.1 – 10.26.227.25410.26.227.255
11510.26.228.0/2310.26.228.1 – 10.26.229.25410.26.229.255
11610.26.230.0/2310.26.230.1 – 10.26.231.25410.26.231.255
11710.26.232.0/2310.26.232.1 – 10.26.233.25410.26.233.255
11810.26.234.0/2310.26.234.1 – 10.26.235.25410.26.235.255
11910.26.236.0/2310.26.236.1 – 10.26.237.25410.26.237.255
12010.26.238.0/2310.26.238.1 – 10.26.239.25410.26.239.255
12110.26.240.0/2310.26.240.1 – 10.26.241.25410.26.241.255
12210.26.242.0/2310.26.242.1 – 10.26.243.25410.26.243.255
12310.26.244.0/2310.26.244.1 – 10.26.245.25410.26.245.255
12410.26.246.0/2310.26.246.1 – 10.26.247.25410.26.247.255
12510.26.248.0/2310.26.248.1 – 10.26.249.25410.26.249.255
12610.26.250.0/2310.26.250.1 – 10.26.251.25410.26.251.255
12710.26.252.0/2310.26.252.1 – 10.26.253.25410.26.253.255
12810.26.254.0/2310.26.254.1 – 10.26.255.25410.26.255.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /16
/00.0.0.04,294,967,2964,294,967,294-
/1128.0.0.02,147,483,6482,147,483,646-
/2192.0.0.01,073,741,8241,073,741,822-
/3224.0.0.0536,870,912536,870,910-
/4240.0.0.0268,435,456268,435,454-
/5248.0.0.0134,217,728134,217,726-
/6252.0.0.067,108,86467,108,862-
/7254.0.0.033,554,43233,554,430-
/8255.0.0.016,777,21616,777,214-
/9255.128.0.08,388,6088,388,606-
/10255.192.0.04,194,3044,194,302-
/11255.224.0.02,097,1522,097,150-
/12255.240.0.01,048,5761,048,574-
/13255.248.0.0524,288524,286-
/14255.252.0.0262,144262,142-
/15255.254.0.0131,072131,070-
/16255.255.0.065,53665,5341
/17255.255.128.032,76832,7662 split →
/18255.255.192.016,38416,3824 split →
/19255.255.224.08,1928,1908 split →
/20255.255.240.04,0964,09416 split →
/21255.255.248.02,0482,04632 split →
/22255.255.252.01,0241,02264 split →
/23255.255.254.0512510128 split →
/24255.255.255.0256254256 split →
/25255.255.255.128128126512 split →
/26255.255.255.19264621,024 split →
/27255.255.255.22432302,048 split →
/28255.255.255.24016144,096 split →
/29255.255.255.248868,192 split →
/30255.255.255.2524216,384 split →
/31255.255.255.2542232,768 split →
/32255.255.255.2551165,536 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.

Learn how to work it out →