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)10.132.0.0/16
network10.132.0.0/16
broadcast10.132.255.255
first host10.132.0.1
last host10.132.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.132.0.0/16
address00001010.10000100.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.10000100.00000000.00000000
broadcast00001010.10000100.11111111.11111111
green = network part, grey = host part
hex0x0a840000
decimal176422912
reverse dns0.0.132.10.in-addr.arpa
ipv4-mapped::ffff:a84:0

/16 split into /23 · 128 subnets

close ×
#networkhost rangebroadcast
110.132.0.0/2310.132.0.1 – 10.132.1.25410.132.1.255
210.132.2.0/2310.132.2.1 – 10.132.3.25410.132.3.255
310.132.4.0/2310.132.4.1 – 10.132.5.25410.132.5.255
410.132.6.0/2310.132.6.1 – 10.132.7.25410.132.7.255
510.132.8.0/2310.132.8.1 – 10.132.9.25410.132.9.255
610.132.10.0/2310.132.10.1 – 10.132.11.25410.132.11.255
710.132.12.0/2310.132.12.1 – 10.132.13.25410.132.13.255
810.132.14.0/2310.132.14.1 – 10.132.15.25410.132.15.255
910.132.16.0/2310.132.16.1 – 10.132.17.25410.132.17.255
1010.132.18.0/2310.132.18.1 – 10.132.19.25410.132.19.255
1110.132.20.0/2310.132.20.1 – 10.132.21.25410.132.21.255
1210.132.22.0/2310.132.22.1 – 10.132.23.25410.132.23.255
1310.132.24.0/2310.132.24.1 – 10.132.25.25410.132.25.255
1410.132.26.0/2310.132.26.1 – 10.132.27.25410.132.27.255
1510.132.28.0/2310.132.28.1 – 10.132.29.25410.132.29.255
1610.132.30.0/2310.132.30.1 – 10.132.31.25410.132.31.255
1710.132.32.0/2310.132.32.1 – 10.132.33.25410.132.33.255
1810.132.34.0/2310.132.34.1 – 10.132.35.25410.132.35.255
1910.132.36.0/2310.132.36.1 – 10.132.37.25410.132.37.255
2010.132.38.0/2310.132.38.1 – 10.132.39.25410.132.39.255
2110.132.40.0/2310.132.40.1 – 10.132.41.25410.132.41.255
2210.132.42.0/2310.132.42.1 – 10.132.43.25410.132.43.255
2310.132.44.0/2310.132.44.1 – 10.132.45.25410.132.45.255
2410.132.46.0/2310.132.46.1 – 10.132.47.25410.132.47.255
2510.132.48.0/2310.132.48.1 – 10.132.49.25410.132.49.255
2610.132.50.0/2310.132.50.1 – 10.132.51.25410.132.51.255
2710.132.52.0/2310.132.52.1 – 10.132.53.25410.132.53.255
2810.132.54.0/2310.132.54.1 – 10.132.55.25410.132.55.255
2910.132.56.0/2310.132.56.1 – 10.132.57.25410.132.57.255
3010.132.58.0/2310.132.58.1 – 10.132.59.25410.132.59.255
3110.132.60.0/2310.132.60.1 – 10.132.61.25410.132.61.255
3210.132.62.0/2310.132.62.1 – 10.132.63.25410.132.63.255
3310.132.64.0/2310.132.64.1 – 10.132.65.25410.132.65.255
3410.132.66.0/2310.132.66.1 – 10.132.67.25410.132.67.255
3510.132.68.0/2310.132.68.1 – 10.132.69.25410.132.69.255
3610.132.70.0/2310.132.70.1 – 10.132.71.25410.132.71.255
3710.132.72.0/2310.132.72.1 – 10.132.73.25410.132.73.255
3810.132.74.0/2310.132.74.1 – 10.132.75.25410.132.75.255
3910.132.76.0/2310.132.76.1 – 10.132.77.25410.132.77.255
4010.132.78.0/2310.132.78.1 – 10.132.79.25410.132.79.255
4110.132.80.0/2310.132.80.1 – 10.132.81.25410.132.81.255
4210.132.82.0/2310.132.82.1 – 10.132.83.25410.132.83.255
4310.132.84.0/2310.132.84.1 – 10.132.85.25410.132.85.255
4410.132.86.0/2310.132.86.1 – 10.132.87.25410.132.87.255
4510.132.88.0/2310.132.88.1 – 10.132.89.25410.132.89.255
4610.132.90.0/2310.132.90.1 – 10.132.91.25410.132.91.255
4710.132.92.0/2310.132.92.1 – 10.132.93.25410.132.93.255
4810.132.94.0/2310.132.94.1 – 10.132.95.25410.132.95.255
4910.132.96.0/2310.132.96.1 – 10.132.97.25410.132.97.255
5010.132.98.0/2310.132.98.1 – 10.132.99.25410.132.99.255
5110.132.100.0/2310.132.100.1 – 10.132.101.25410.132.101.255
5210.132.102.0/2310.132.102.1 – 10.132.103.25410.132.103.255
5310.132.104.0/2310.132.104.1 – 10.132.105.25410.132.105.255
5410.132.106.0/2310.132.106.1 – 10.132.107.25410.132.107.255
5510.132.108.0/2310.132.108.1 – 10.132.109.25410.132.109.255
5610.132.110.0/2310.132.110.1 – 10.132.111.25410.132.111.255
5710.132.112.0/2310.132.112.1 – 10.132.113.25410.132.113.255
5810.132.114.0/2310.132.114.1 – 10.132.115.25410.132.115.255
5910.132.116.0/2310.132.116.1 – 10.132.117.25410.132.117.255
6010.132.118.0/2310.132.118.1 – 10.132.119.25410.132.119.255
6110.132.120.0/2310.132.120.1 – 10.132.121.25410.132.121.255
6210.132.122.0/2310.132.122.1 – 10.132.123.25410.132.123.255
6310.132.124.0/2310.132.124.1 – 10.132.125.25410.132.125.255
6410.132.126.0/2310.132.126.1 – 10.132.127.25410.132.127.255
6510.132.128.0/2310.132.128.1 – 10.132.129.25410.132.129.255
6610.132.130.0/2310.132.130.1 – 10.132.131.25410.132.131.255
6710.132.132.0/2310.132.132.1 – 10.132.133.25410.132.133.255
6810.132.134.0/2310.132.134.1 – 10.132.135.25410.132.135.255
6910.132.136.0/2310.132.136.1 – 10.132.137.25410.132.137.255
7010.132.138.0/2310.132.138.1 – 10.132.139.25410.132.139.255
7110.132.140.0/2310.132.140.1 – 10.132.141.25410.132.141.255
7210.132.142.0/2310.132.142.1 – 10.132.143.25410.132.143.255
7310.132.144.0/2310.132.144.1 – 10.132.145.25410.132.145.255
7410.132.146.0/2310.132.146.1 – 10.132.147.25410.132.147.255
7510.132.148.0/2310.132.148.1 – 10.132.149.25410.132.149.255
7610.132.150.0/2310.132.150.1 – 10.132.151.25410.132.151.255
7710.132.152.0/2310.132.152.1 – 10.132.153.25410.132.153.255
7810.132.154.0/2310.132.154.1 – 10.132.155.25410.132.155.255
7910.132.156.0/2310.132.156.1 – 10.132.157.25410.132.157.255
8010.132.158.0/2310.132.158.1 – 10.132.159.25410.132.159.255
8110.132.160.0/2310.132.160.1 – 10.132.161.25410.132.161.255
8210.132.162.0/2310.132.162.1 – 10.132.163.25410.132.163.255
8310.132.164.0/2310.132.164.1 – 10.132.165.25410.132.165.255
8410.132.166.0/2310.132.166.1 – 10.132.167.25410.132.167.255
8510.132.168.0/2310.132.168.1 – 10.132.169.25410.132.169.255
8610.132.170.0/2310.132.170.1 – 10.132.171.25410.132.171.255
8710.132.172.0/2310.132.172.1 – 10.132.173.25410.132.173.255
8810.132.174.0/2310.132.174.1 – 10.132.175.25410.132.175.255
8910.132.176.0/2310.132.176.1 – 10.132.177.25410.132.177.255
9010.132.178.0/2310.132.178.1 – 10.132.179.25410.132.179.255
9110.132.180.0/2310.132.180.1 – 10.132.181.25410.132.181.255
9210.132.182.0/2310.132.182.1 – 10.132.183.25410.132.183.255
9310.132.184.0/2310.132.184.1 – 10.132.185.25410.132.185.255
9410.132.186.0/2310.132.186.1 – 10.132.187.25410.132.187.255
9510.132.188.0/2310.132.188.1 – 10.132.189.25410.132.189.255
9610.132.190.0/2310.132.190.1 – 10.132.191.25410.132.191.255
9710.132.192.0/2310.132.192.1 – 10.132.193.25410.132.193.255
9810.132.194.0/2310.132.194.1 – 10.132.195.25410.132.195.255
9910.132.196.0/2310.132.196.1 – 10.132.197.25410.132.197.255
10010.132.198.0/2310.132.198.1 – 10.132.199.25410.132.199.255
10110.132.200.0/2310.132.200.1 – 10.132.201.25410.132.201.255
10210.132.202.0/2310.132.202.1 – 10.132.203.25410.132.203.255
10310.132.204.0/2310.132.204.1 – 10.132.205.25410.132.205.255
10410.132.206.0/2310.132.206.1 – 10.132.207.25410.132.207.255
10510.132.208.0/2310.132.208.1 – 10.132.209.25410.132.209.255
10610.132.210.0/2310.132.210.1 – 10.132.211.25410.132.211.255
10710.132.212.0/2310.132.212.1 – 10.132.213.25410.132.213.255
10810.132.214.0/2310.132.214.1 – 10.132.215.25410.132.215.255
10910.132.216.0/2310.132.216.1 – 10.132.217.25410.132.217.255
11010.132.218.0/2310.132.218.1 – 10.132.219.25410.132.219.255
11110.132.220.0/2310.132.220.1 – 10.132.221.25410.132.221.255
11210.132.222.0/2310.132.222.1 – 10.132.223.25410.132.223.255
11310.132.224.0/2310.132.224.1 – 10.132.225.25410.132.225.255
11410.132.226.0/2310.132.226.1 – 10.132.227.25410.132.227.255
11510.132.228.0/2310.132.228.1 – 10.132.229.25410.132.229.255
11610.132.230.0/2310.132.230.1 – 10.132.231.25410.132.231.255
11710.132.232.0/2310.132.232.1 – 10.132.233.25410.132.233.255
11810.132.234.0/2310.132.234.1 – 10.132.235.25410.132.235.255
11910.132.236.0/2310.132.236.1 – 10.132.237.25410.132.237.255
12010.132.238.0/2310.132.238.1 – 10.132.239.25410.132.239.255
12110.132.240.0/2310.132.240.1 – 10.132.241.25410.132.241.255
12210.132.242.0/2310.132.242.1 – 10.132.243.25410.132.243.255
12310.132.244.0/2310.132.244.1 – 10.132.245.25410.132.245.255
12410.132.246.0/2310.132.246.1 – 10.132.247.25410.132.247.255
12510.132.248.0/2310.132.248.1 – 10.132.249.25410.132.249.255
12610.132.250.0/2310.132.250.1 – 10.132.251.25410.132.251.255
12710.132.252.0/2310.132.252.1 – 10.132.253.25410.132.253.255
12810.132.254.0/2310.132.254.1 – 10.132.255.25410.132.255.255
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 →