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)10.86.0.0/16
network10.86.0.0/16
broadcast10.86.255.255
first host10.86.0.1
last host10.86.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.86.0.0/16
address00001010.01010110.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.01010110.00000000.00000000
broadcast00001010.01010110.11111111.11111111
green = network part, grey = host part
hex0x0a560000
decimal173408256
reverse dns0.0.86.10.in-addr.arpa
ipv4-mapped::ffff:a56:0

/16 split into /23 · 128 subnets

close ×
#networkhost rangebroadcast
110.86.0.0/2310.86.0.1 – 10.86.1.25410.86.1.255
210.86.2.0/2310.86.2.1 – 10.86.3.25410.86.3.255
310.86.4.0/2310.86.4.1 – 10.86.5.25410.86.5.255
410.86.6.0/2310.86.6.1 – 10.86.7.25410.86.7.255
510.86.8.0/2310.86.8.1 – 10.86.9.25410.86.9.255
610.86.10.0/2310.86.10.1 – 10.86.11.25410.86.11.255
710.86.12.0/2310.86.12.1 – 10.86.13.25410.86.13.255
810.86.14.0/2310.86.14.1 – 10.86.15.25410.86.15.255
910.86.16.0/2310.86.16.1 – 10.86.17.25410.86.17.255
1010.86.18.0/2310.86.18.1 – 10.86.19.25410.86.19.255
1110.86.20.0/2310.86.20.1 – 10.86.21.25410.86.21.255
1210.86.22.0/2310.86.22.1 – 10.86.23.25410.86.23.255
1310.86.24.0/2310.86.24.1 – 10.86.25.25410.86.25.255
1410.86.26.0/2310.86.26.1 – 10.86.27.25410.86.27.255
1510.86.28.0/2310.86.28.1 – 10.86.29.25410.86.29.255
1610.86.30.0/2310.86.30.1 – 10.86.31.25410.86.31.255
1710.86.32.0/2310.86.32.1 – 10.86.33.25410.86.33.255
1810.86.34.0/2310.86.34.1 – 10.86.35.25410.86.35.255
1910.86.36.0/2310.86.36.1 – 10.86.37.25410.86.37.255
2010.86.38.0/2310.86.38.1 – 10.86.39.25410.86.39.255
2110.86.40.0/2310.86.40.1 – 10.86.41.25410.86.41.255
2210.86.42.0/2310.86.42.1 – 10.86.43.25410.86.43.255
2310.86.44.0/2310.86.44.1 – 10.86.45.25410.86.45.255
2410.86.46.0/2310.86.46.1 – 10.86.47.25410.86.47.255
2510.86.48.0/2310.86.48.1 – 10.86.49.25410.86.49.255
2610.86.50.0/2310.86.50.1 – 10.86.51.25410.86.51.255
2710.86.52.0/2310.86.52.1 – 10.86.53.25410.86.53.255
2810.86.54.0/2310.86.54.1 – 10.86.55.25410.86.55.255
2910.86.56.0/2310.86.56.1 – 10.86.57.25410.86.57.255
3010.86.58.0/2310.86.58.1 – 10.86.59.25410.86.59.255
3110.86.60.0/2310.86.60.1 – 10.86.61.25410.86.61.255
3210.86.62.0/2310.86.62.1 – 10.86.63.25410.86.63.255
3310.86.64.0/2310.86.64.1 – 10.86.65.25410.86.65.255
3410.86.66.0/2310.86.66.1 – 10.86.67.25410.86.67.255
3510.86.68.0/2310.86.68.1 – 10.86.69.25410.86.69.255
3610.86.70.0/2310.86.70.1 – 10.86.71.25410.86.71.255
3710.86.72.0/2310.86.72.1 – 10.86.73.25410.86.73.255
3810.86.74.0/2310.86.74.1 – 10.86.75.25410.86.75.255
3910.86.76.0/2310.86.76.1 – 10.86.77.25410.86.77.255
4010.86.78.0/2310.86.78.1 – 10.86.79.25410.86.79.255
4110.86.80.0/2310.86.80.1 – 10.86.81.25410.86.81.255
4210.86.82.0/2310.86.82.1 – 10.86.83.25410.86.83.255
4310.86.84.0/2310.86.84.1 – 10.86.85.25410.86.85.255
4410.86.86.0/2310.86.86.1 – 10.86.87.25410.86.87.255
4510.86.88.0/2310.86.88.1 – 10.86.89.25410.86.89.255
4610.86.90.0/2310.86.90.1 – 10.86.91.25410.86.91.255
4710.86.92.0/2310.86.92.1 – 10.86.93.25410.86.93.255
4810.86.94.0/2310.86.94.1 – 10.86.95.25410.86.95.255
4910.86.96.0/2310.86.96.1 – 10.86.97.25410.86.97.255
5010.86.98.0/2310.86.98.1 – 10.86.99.25410.86.99.255
5110.86.100.0/2310.86.100.1 – 10.86.101.25410.86.101.255
5210.86.102.0/2310.86.102.1 – 10.86.103.25410.86.103.255
5310.86.104.0/2310.86.104.1 – 10.86.105.25410.86.105.255
5410.86.106.0/2310.86.106.1 – 10.86.107.25410.86.107.255
5510.86.108.0/2310.86.108.1 – 10.86.109.25410.86.109.255
5610.86.110.0/2310.86.110.1 – 10.86.111.25410.86.111.255
5710.86.112.0/2310.86.112.1 – 10.86.113.25410.86.113.255
5810.86.114.0/2310.86.114.1 – 10.86.115.25410.86.115.255
5910.86.116.0/2310.86.116.1 – 10.86.117.25410.86.117.255
6010.86.118.0/2310.86.118.1 – 10.86.119.25410.86.119.255
6110.86.120.0/2310.86.120.1 – 10.86.121.25410.86.121.255
6210.86.122.0/2310.86.122.1 – 10.86.123.25410.86.123.255
6310.86.124.0/2310.86.124.1 – 10.86.125.25410.86.125.255
6410.86.126.0/2310.86.126.1 – 10.86.127.25410.86.127.255
6510.86.128.0/2310.86.128.1 – 10.86.129.25410.86.129.255
6610.86.130.0/2310.86.130.1 – 10.86.131.25410.86.131.255
6710.86.132.0/2310.86.132.1 – 10.86.133.25410.86.133.255
6810.86.134.0/2310.86.134.1 – 10.86.135.25410.86.135.255
6910.86.136.0/2310.86.136.1 – 10.86.137.25410.86.137.255
7010.86.138.0/2310.86.138.1 – 10.86.139.25410.86.139.255
7110.86.140.0/2310.86.140.1 – 10.86.141.25410.86.141.255
7210.86.142.0/2310.86.142.1 – 10.86.143.25410.86.143.255
7310.86.144.0/2310.86.144.1 – 10.86.145.25410.86.145.255
7410.86.146.0/2310.86.146.1 – 10.86.147.25410.86.147.255
7510.86.148.0/2310.86.148.1 – 10.86.149.25410.86.149.255
7610.86.150.0/2310.86.150.1 – 10.86.151.25410.86.151.255
7710.86.152.0/2310.86.152.1 – 10.86.153.25410.86.153.255
7810.86.154.0/2310.86.154.1 – 10.86.155.25410.86.155.255
7910.86.156.0/2310.86.156.1 – 10.86.157.25410.86.157.255
8010.86.158.0/2310.86.158.1 – 10.86.159.25410.86.159.255
8110.86.160.0/2310.86.160.1 – 10.86.161.25410.86.161.255
8210.86.162.0/2310.86.162.1 – 10.86.163.25410.86.163.255
8310.86.164.0/2310.86.164.1 – 10.86.165.25410.86.165.255
8410.86.166.0/2310.86.166.1 – 10.86.167.25410.86.167.255
8510.86.168.0/2310.86.168.1 – 10.86.169.25410.86.169.255
8610.86.170.0/2310.86.170.1 – 10.86.171.25410.86.171.255
8710.86.172.0/2310.86.172.1 – 10.86.173.25410.86.173.255
8810.86.174.0/2310.86.174.1 – 10.86.175.25410.86.175.255
8910.86.176.0/2310.86.176.1 – 10.86.177.25410.86.177.255
9010.86.178.0/2310.86.178.1 – 10.86.179.25410.86.179.255
9110.86.180.0/2310.86.180.1 – 10.86.181.25410.86.181.255
9210.86.182.0/2310.86.182.1 – 10.86.183.25410.86.183.255
9310.86.184.0/2310.86.184.1 – 10.86.185.25410.86.185.255
9410.86.186.0/2310.86.186.1 – 10.86.187.25410.86.187.255
9510.86.188.0/2310.86.188.1 – 10.86.189.25410.86.189.255
9610.86.190.0/2310.86.190.1 – 10.86.191.25410.86.191.255
9710.86.192.0/2310.86.192.1 – 10.86.193.25410.86.193.255
9810.86.194.0/2310.86.194.1 – 10.86.195.25410.86.195.255
9910.86.196.0/2310.86.196.1 – 10.86.197.25410.86.197.255
10010.86.198.0/2310.86.198.1 – 10.86.199.25410.86.199.255
10110.86.200.0/2310.86.200.1 – 10.86.201.25410.86.201.255
10210.86.202.0/2310.86.202.1 – 10.86.203.25410.86.203.255
10310.86.204.0/2310.86.204.1 – 10.86.205.25410.86.205.255
10410.86.206.0/2310.86.206.1 – 10.86.207.25410.86.207.255
10510.86.208.0/2310.86.208.1 – 10.86.209.25410.86.209.255
10610.86.210.0/2310.86.210.1 – 10.86.211.25410.86.211.255
10710.86.212.0/2310.86.212.1 – 10.86.213.25410.86.213.255
10810.86.214.0/2310.86.214.1 – 10.86.215.25410.86.215.255
10910.86.216.0/2310.86.216.1 – 10.86.217.25410.86.217.255
11010.86.218.0/2310.86.218.1 – 10.86.219.25410.86.219.255
11110.86.220.0/2310.86.220.1 – 10.86.221.25410.86.221.255
11210.86.222.0/2310.86.222.1 – 10.86.223.25410.86.223.255
11310.86.224.0/2310.86.224.1 – 10.86.225.25410.86.225.255
11410.86.226.0/2310.86.226.1 – 10.86.227.25410.86.227.255
11510.86.228.0/2310.86.228.1 – 10.86.229.25410.86.229.255
11610.86.230.0/2310.86.230.1 – 10.86.231.25410.86.231.255
11710.86.232.0/2310.86.232.1 – 10.86.233.25410.86.233.255
11810.86.234.0/2310.86.234.1 – 10.86.235.25410.86.235.255
11910.86.236.0/2310.86.236.1 – 10.86.237.25410.86.237.255
12010.86.238.0/2310.86.238.1 – 10.86.239.25410.86.239.255
12110.86.240.0/2310.86.240.1 – 10.86.241.25410.86.241.255
12210.86.242.0/2310.86.242.1 – 10.86.243.25410.86.243.255
12310.86.244.0/2310.86.244.1 – 10.86.245.25410.86.245.255
12410.86.246.0/2310.86.246.1 – 10.86.247.25410.86.247.255
12510.86.248.0/2310.86.248.1 – 10.86.249.25410.86.249.255
12610.86.250.0/2310.86.250.1 – 10.86.251.25410.86.251.255
12710.86.252.0/2310.86.252.1 – 10.86.253.25410.86.253.255
12810.86.254.0/2310.86.254.1 – 10.86.255.25410.86.255.255
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 →