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
private IP (RFC 1918)10.196.0.0/16
network10.196.0.0/16
broadcast10.196.255.255
first host10.196.0.1
last host10.196.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.196.0.0/16
address00001010.11000100.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.11000100.00000000.00000000
broadcast00001010.11000100.11111111.11111111
green = network part, grey = host part
hex0x0ac40000
decimal180617216
reverse dns0.0.196.10.in-addr.arpa
ipv4-mapped::ffff:ac4:0

/16 split into /23 · 128 subnets

close ×
#networkhost rangebroadcast
110.196.0.0/2310.196.0.1 – 10.196.1.25410.196.1.255
210.196.2.0/2310.196.2.1 – 10.196.3.25410.196.3.255
310.196.4.0/2310.196.4.1 – 10.196.5.25410.196.5.255
410.196.6.0/2310.196.6.1 – 10.196.7.25410.196.7.255
510.196.8.0/2310.196.8.1 – 10.196.9.25410.196.9.255
610.196.10.0/2310.196.10.1 – 10.196.11.25410.196.11.255
710.196.12.0/2310.196.12.1 – 10.196.13.25410.196.13.255
810.196.14.0/2310.196.14.1 – 10.196.15.25410.196.15.255
910.196.16.0/2310.196.16.1 – 10.196.17.25410.196.17.255
1010.196.18.0/2310.196.18.1 – 10.196.19.25410.196.19.255
1110.196.20.0/2310.196.20.1 – 10.196.21.25410.196.21.255
1210.196.22.0/2310.196.22.1 – 10.196.23.25410.196.23.255
1310.196.24.0/2310.196.24.1 – 10.196.25.25410.196.25.255
1410.196.26.0/2310.196.26.1 – 10.196.27.25410.196.27.255
1510.196.28.0/2310.196.28.1 – 10.196.29.25410.196.29.255
1610.196.30.0/2310.196.30.1 – 10.196.31.25410.196.31.255
1710.196.32.0/2310.196.32.1 – 10.196.33.25410.196.33.255
1810.196.34.0/2310.196.34.1 – 10.196.35.25410.196.35.255
1910.196.36.0/2310.196.36.1 – 10.196.37.25410.196.37.255
2010.196.38.0/2310.196.38.1 – 10.196.39.25410.196.39.255
2110.196.40.0/2310.196.40.1 – 10.196.41.25410.196.41.255
2210.196.42.0/2310.196.42.1 – 10.196.43.25410.196.43.255
2310.196.44.0/2310.196.44.1 – 10.196.45.25410.196.45.255
2410.196.46.0/2310.196.46.1 – 10.196.47.25410.196.47.255
2510.196.48.0/2310.196.48.1 – 10.196.49.25410.196.49.255
2610.196.50.0/2310.196.50.1 – 10.196.51.25410.196.51.255
2710.196.52.0/2310.196.52.1 – 10.196.53.25410.196.53.255
2810.196.54.0/2310.196.54.1 – 10.196.55.25410.196.55.255
2910.196.56.0/2310.196.56.1 – 10.196.57.25410.196.57.255
3010.196.58.0/2310.196.58.1 – 10.196.59.25410.196.59.255
3110.196.60.0/2310.196.60.1 – 10.196.61.25410.196.61.255
3210.196.62.0/2310.196.62.1 – 10.196.63.25410.196.63.255
3310.196.64.0/2310.196.64.1 – 10.196.65.25410.196.65.255
3410.196.66.0/2310.196.66.1 – 10.196.67.25410.196.67.255
3510.196.68.0/2310.196.68.1 – 10.196.69.25410.196.69.255
3610.196.70.0/2310.196.70.1 – 10.196.71.25410.196.71.255
3710.196.72.0/2310.196.72.1 – 10.196.73.25410.196.73.255
3810.196.74.0/2310.196.74.1 – 10.196.75.25410.196.75.255
3910.196.76.0/2310.196.76.1 – 10.196.77.25410.196.77.255
4010.196.78.0/2310.196.78.1 – 10.196.79.25410.196.79.255
4110.196.80.0/2310.196.80.1 – 10.196.81.25410.196.81.255
4210.196.82.0/2310.196.82.1 – 10.196.83.25410.196.83.255
4310.196.84.0/2310.196.84.1 – 10.196.85.25410.196.85.255
4410.196.86.0/2310.196.86.1 – 10.196.87.25410.196.87.255
4510.196.88.0/2310.196.88.1 – 10.196.89.25410.196.89.255
4610.196.90.0/2310.196.90.1 – 10.196.91.25410.196.91.255
4710.196.92.0/2310.196.92.1 – 10.196.93.25410.196.93.255
4810.196.94.0/2310.196.94.1 – 10.196.95.25410.196.95.255
4910.196.96.0/2310.196.96.1 – 10.196.97.25410.196.97.255
5010.196.98.0/2310.196.98.1 – 10.196.99.25410.196.99.255
5110.196.100.0/2310.196.100.1 – 10.196.101.25410.196.101.255
5210.196.102.0/2310.196.102.1 – 10.196.103.25410.196.103.255
5310.196.104.0/2310.196.104.1 – 10.196.105.25410.196.105.255
5410.196.106.0/2310.196.106.1 – 10.196.107.25410.196.107.255
5510.196.108.0/2310.196.108.1 – 10.196.109.25410.196.109.255
5610.196.110.0/2310.196.110.1 – 10.196.111.25410.196.111.255
5710.196.112.0/2310.196.112.1 – 10.196.113.25410.196.113.255
5810.196.114.0/2310.196.114.1 – 10.196.115.25410.196.115.255
5910.196.116.0/2310.196.116.1 – 10.196.117.25410.196.117.255
6010.196.118.0/2310.196.118.1 – 10.196.119.25410.196.119.255
6110.196.120.0/2310.196.120.1 – 10.196.121.25410.196.121.255
6210.196.122.0/2310.196.122.1 – 10.196.123.25410.196.123.255
6310.196.124.0/2310.196.124.1 – 10.196.125.25410.196.125.255
6410.196.126.0/2310.196.126.1 – 10.196.127.25410.196.127.255
6510.196.128.0/2310.196.128.1 – 10.196.129.25410.196.129.255
6610.196.130.0/2310.196.130.1 – 10.196.131.25410.196.131.255
6710.196.132.0/2310.196.132.1 – 10.196.133.25410.196.133.255
6810.196.134.0/2310.196.134.1 – 10.196.135.25410.196.135.255
6910.196.136.0/2310.196.136.1 – 10.196.137.25410.196.137.255
7010.196.138.0/2310.196.138.1 – 10.196.139.25410.196.139.255
7110.196.140.0/2310.196.140.1 – 10.196.141.25410.196.141.255
7210.196.142.0/2310.196.142.1 – 10.196.143.25410.196.143.255
7310.196.144.0/2310.196.144.1 – 10.196.145.25410.196.145.255
7410.196.146.0/2310.196.146.1 – 10.196.147.25410.196.147.255
7510.196.148.0/2310.196.148.1 – 10.196.149.25410.196.149.255
7610.196.150.0/2310.196.150.1 – 10.196.151.25410.196.151.255
7710.196.152.0/2310.196.152.1 – 10.196.153.25410.196.153.255
7810.196.154.0/2310.196.154.1 – 10.196.155.25410.196.155.255
7910.196.156.0/2310.196.156.1 – 10.196.157.25410.196.157.255
8010.196.158.0/2310.196.158.1 – 10.196.159.25410.196.159.255
8110.196.160.0/2310.196.160.1 – 10.196.161.25410.196.161.255
8210.196.162.0/2310.196.162.1 – 10.196.163.25410.196.163.255
8310.196.164.0/2310.196.164.1 – 10.196.165.25410.196.165.255
8410.196.166.0/2310.196.166.1 – 10.196.167.25410.196.167.255
8510.196.168.0/2310.196.168.1 – 10.196.169.25410.196.169.255
8610.196.170.0/2310.196.170.1 – 10.196.171.25410.196.171.255
8710.196.172.0/2310.196.172.1 – 10.196.173.25410.196.173.255
8810.196.174.0/2310.196.174.1 – 10.196.175.25410.196.175.255
8910.196.176.0/2310.196.176.1 – 10.196.177.25410.196.177.255
9010.196.178.0/2310.196.178.1 – 10.196.179.25410.196.179.255
9110.196.180.0/2310.196.180.1 – 10.196.181.25410.196.181.255
9210.196.182.0/2310.196.182.1 – 10.196.183.25410.196.183.255
9310.196.184.0/2310.196.184.1 – 10.196.185.25410.196.185.255
9410.196.186.0/2310.196.186.1 – 10.196.187.25410.196.187.255
9510.196.188.0/2310.196.188.1 – 10.196.189.25410.196.189.255
9610.196.190.0/2310.196.190.1 – 10.196.191.25410.196.191.255
9710.196.192.0/2310.196.192.1 – 10.196.193.25410.196.193.255
9810.196.194.0/2310.196.194.1 – 10.196.195.25410.196.195.255
9910.196.196.0/2310.196.196.1 – 10.196.197.25410.196.197.255
10010.196.198.0/2310.196.198.1 – 10.196.199.25410.196.199.255
10110.196.200.0/2310.196.200.1 – 10.196.201.25410.196.201.255
10210.196.202.0/2310.196.202.1 – 10.196.203.25410.196.203.255
10310.196.204.0/2310.196.204.1 – 10.196.205.25410.196.205.255
10410.196.206.0/2310.196.206.1 – 10.196.207.25410.196.207.255
10510.196.208.0/2310.196.208.1 – 10.196.209.25410.196.209.255
10610.196.210.0/2310.196.210.1 – 10.196.211.25410.196.211.255
10710.196.212.0/2310.196.212.1 – 10.196.213.25410.196.213.255
10810.196.214.0/2310.196.214.1 – 10.196.215.25410.196.215.255
10910.196.216.0/2310.196.216.1 – 10.196.217.25410.196.217.255
11010.196.218.0/2310.196.218.1 – 10.196.219.25410.196.219.255
11110.196.220.0/2310.196.220.1 – 10.196.221.25410.196.221.255
11210.196.222.0/2310.196.222.1 – 10.196.223.25410.196.223.255
11310.196.224.0/2310.196.224.1 – 10.196.225.25410.196.225.255
11410.196.226.0/2310.196.226.1 – 10.196.227.25410.196.227.255
11510.196.228.0/2310.196.228.1 – 10.196.229.25410.196.229.255
11610.196.230.0/2310.196.230.1 – 10.196.231.25410.196.231.255
11710.196.232.0/2310.196.232.1 – 10.196.233.25410.196.233.255
11810.196.234.0/2310.196.234.1 – 10.196.235.25410.196.235.255
11910.196.236.0/2310.196.236.1 – 10.196.237.25410.196.237.255
12010.196.238.0/2310.196.238.1 – 10.196.239.25410.196.239.255
12110.196.240.0/2310.196.240.1 – 10.196.241.25410.196.241.255
12210.196.242.0/2310.196.242.1 – 10.196.243.25410.196.243.255
12310.196.244.0/2310.196.244.1 – 10.196.245.25410.196.245.255
12410.196.246.0/2310.196.246.1 – 10.196.247.25410.196.247.255
12510.196.248.0/2310.196.248.1 – 10.196.249.25410.196.249.255
12610.196.250.0/2310.196.250.1 – 10.196.251.25410.196.251.255
12710.196.252.0/2310.196.252.1 – 10.196.253.25410.196.253.255
12810.196.254.0/2310.196.254.1 – 10.196.255.25410.196.255.255
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 →