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)10.84.0.0/16
network10.84.0.0/16
broadcast10.84.255.255
first host10.84.0.1
last host10.84.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.84.0.0/16
address00001010.01010100.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.01010100.00000000.00000000
broadcast00001010.01010100.11111111.11111111
green = network part, grey = host part
hex0x0a540000
decimal173277184
reverse dns0.0.84.10.in-addr.arpa
ipv4-mapped::ffff:a54:0

/16 split into /23 · 128 subnets

close ×
#networkhost rangebroadcast
110.84.0.0/2310.84.0.1 – 10.84.1.25410.84.1.255
210.84.2.0/2310.84.2.1 – 10.84.3.25410.84.3.255
310.84.4.0/2310.84.4.1 – 10.84.5.25410.84.5.255
410.84.6.0/2310.84.6.1 – 10.84.7.25410.84.7.255
510.84.8.0/2310.84.8.1 – 10.84.9.25410.84.9.255
610.84.10.0/2310.84.10.1 – 10.84.11.25410.84.11.255
710.84.12.0/2310.84.12.1 – 10.84.13.25410.84.13.255
810.84.14.0/2310.84.14.1 – 10.84.15.25410.84.15.255
910.84.16.0/2310.84.16.1 – 10.84.17.25410.84.17.255
1010.84.18.0/2310.84.18.1 – 10.84.19.25410.84.19.255
1110.84.20.0/2310.84.20.1 – 10.84.21.25410.84.21.255
1210.84.22.0/2310.84.22.1 – 10.84.23.25410.84.23.255
1310.84.24.0/2310.84.24.1 – 10.84.25.25410.84.25.255
1410.84.26.0/2310.84.26.1 – 10.84.27.25410.84.27.255
1510.84.28.0/2310.84.28.1 – 10.84.29.25410.84.29.255
1610.84.30.0/2310.84.30.1 – 10.84.31.25410.84.31.255
1710.84.32.0/2310.84.32.1 – 10.84.33.25410.84.33.255
1810.84.34.0/2310.84.34.1 – 10.84.35.25410.84.35.255
1910.84.36.0/2310.84.36.1 – 10.84.37.25410.84.37.255
2010.84.38.0/2310.84.38.1 – 10.84.39.25410.84.39.255
2110.84.40.0/2310.84.40.1 – 10.84.41.25410.84.41.255
2210.84.42.0/2310.84.42.1 – 10.84.43.25410.84.43.255
2310.84.44.0/2310.84.44.1 – 10.84.45.25410.84.45.255
2410.84.46.0/2310.84.46.1 – 10.84.47.25410.84.47.255
2510.84.48.0/2310.84.48.1 – 10.84.49.25410.84.49.255
2610.84.50.0/2310.84.50.1 – 10.84.51.25410.84.51.255
2710.84.52.0/2310.84.52.1 – 10.84.53.25410.84.53.255
2810.84.54.0/2310.84.54.1 – 10.84.55.25410.84.55.255
2910.84.56.0/2310.84.56.1 – 10.84.57.25410.84.57.255
3010.84.58.0/2310.84.58.1 – 10.84.59.25410.84.59.255
3110.84.60.0/2310.84.60.1 – 10.84.61.25410.84.61.255
3210.84.62.0/2310.84.62.1 – 10.84.63.25410.84.63.255
3310.84.64.0/2310.84.64.1 – 10.84.65.25410.84.65.255
3410.84.66.0/2310.84.66.1 – 10.84.67.25410.84.67.255
3510.84.68.0/2310.84.68.1 – 10.84.69.25410.84.69.255
3610.84.70.0/2310.84.70.1 – 10.84.71.25410.84.71.255
3710.84.72.0/2310.84.72.1 – 10.84.73.25410.84.73.255
3810.84.74.0/2310.84.74.1 – 10.84.75.25410.84.75.255
3910.84.76.0/2310.84.76.1 – 10.84.77.25410.84.77.255
4010.84.78.0/2310.84.78.1 – 10.84.79.25410.84.79.255
4110.84.80.0/2310.84.80.1 – 10.84.81.25410.84.81.255
4210.84.82.0/2310.84.82.1 – 10.84.83.25410.84.83.255
4310.84.84.0/2310.84.84.1 – 10.84.85.25410.84.85.255
4410.84.86.0/2310.84.86.1 – 10.84.87.25410.84.87.255
4510.84.88.0/2310.84.88.1 – 10.84.89.25410.84.89.255
4610.84.90.0/2310.84.90.1 – 10.84.91.25410.84.91.255
4710.84.92.0/2310.84.92.1 – 10.84.93.25410.84.93.255
4810.84.94.0/2310.84.94.1 – 10.84.95.25410.84.95.255
4910.84.96.0/2310.84.96.1 – 10.84.97.25410.84.97.255
5010.84.98.0/2310.84.98.1 – 10.84.99.25410.84.99.255
5110.84.100.0/2310.84.100.1 – 10.84.101.25410.84.101.255
5210.84.102.0/2310.84.102.1 – 10.84.103.25410.84.103.255
5310.84.104.0/2310.84.104.1 – 10.84.105.25410.84.105.255
5410.84.106.0/2310.84.106.1 – 10.84.107.25410.84.107.255
5510.84.108.0/2310.84.108.1 – 10.84.109.25410.84.109.255
5610.84.110.0/2310.84.110.1 – 10.84.111.25410.84.111.255
5710.84.112.0/2310.84.112.1 – 10.84.113.25410.84.113.255
5810.84.114.0/2310.84.114.1 – 10.84.115.25410.84.115.255
5910.84.116.0/2310.84.116.1 – 10.84.117.25410.84.117.255
6010.84.118.0/2310.84.118.1 – 10.84.119.25410.84.119.255
6110.84.120.0/2310.84.120.1 – 10.84.121.25410.84.121.255
6210.84.122.0/2310.84.122.1 – 10.84.123.25410.84.123.255
6310.84.124.0/2310.84.124.1 – 10.84.125.25410.84.125.255
6410.84.126.0/2310.84.126.1 – 10.84.127.25410.84.127.255
6510.84.128.0/2310.84.128.1 – 10.84.129.25410.84.129.255
6610.84.130.0/2310.84.130.1 – 10.84.131.25410.84.131.255
6710.84.132.0/2310.84.132.1 – 10.84.133.25410.84.133.255
6810.84.134.0/2310.84.134.1 – 10.84.135.25410.84.135.255
6910.84.136.0/2310.84.136.1 – 10.84.137.25410.84.137.255
7010.84.138.0/2310.84.138.1 – 10.84.139.25410.84.139.255
7110.84.140.0/2310.84.140.1 – 10.84.141.25410.84.141.255
7210.84.142.0/2310.84.142.1 – 10.84.143.25410.84.143.255
7310.84.144.0/2310.84.144.1 – 10.84.145.25410.84.145.255
7410.84.146.0/2310.84.146.1 – 10.84.147.25410.84.147.255
7510.84.148.0/2310.84.148.1 – 10.84.149.25410.84.149.255
7610.84.150.0/2310.84.150.1 – 10.84.151.25410.84.151.255
7710.84.152.0/2310.84.152.1 – 10.84.153.25410.84.153.255
7810.84.154.0/2310.84.154.1 – 10.84.155.25410.84.155.255
7910.84.156.0/2310.84.156.1 – 10.84.157.25410.84.157.255
8010.84.158.0/2310.84.158.1 – 10.84.159.25410.84.159.255
8110.84.160.0/2310.84.160.1 – 10.84.161.25410.84.161.255
8210.84.162.0/2310.84.162.1 – 10.84.163.25410.84.163.255
8310.84.164.0/2310.84.164.1 – 10.84.165.25410.84.165.255
8410.84.166.0/2310.84.166.1 – 10.84.167.25410.84.167.255
8510.84.168.0/2310.84.168.1 – 10.84.169.25410.84.169.255
8610.84.170.0/2310.84.170.1 – 10.84.171.25410.84.171.255
8710.84.172.0/2310.84.172.1 – 10.84.173.25410.84.173.255
8810.84.174.0/2310.84.174.1 – 10.84.175.25410.84.175.255
8910.84.176.0/2310.84.176.1 – 10.84.177.25410.84.177.255
9010.84.178.0/2310.84.178.1 – 10.84.179.25410.84.179.255
9110.84.180.0/2310.84.180.1 – 10.84.181.25410.84.181.255
9210.84.182.0/2310.84.182.1 – 10.84.183.25410.84.183.255
9310.84.184.0/2310.84.184.1 – 10.84.185.25410.84.185.255
9410.84.186.0/2310.84.186.1 – 10.84.187.25410.84.187.255
9510.84.188.0/2310.84.188.1 – 10.84.189.25410.84.189.255
9610.84.190.0/2310.84.190.1 – 10.84.191.25410.84.191.255
9710.84.192.0/2310.84.192.1 – 10.84.193.25410.84.193.255
9810.84.194.0/2310.84.194.1 – 10.84.195.25410.84.195.255
9910.84.196.0/2310.84.196.1 – 10.84.197.25410.84.197.255
10010.84.198.0/2310.84.198.1 – 10.84.199.25410.84.199.255
10110.84.200.0/2310.84.200.1 – 10.84.201.25410.84.201.255
10210.84.202.0/2310.84.202.1 – 10.84.203.25410.84.203.255
10310.84.204.0/2310.84.204.1 – 10.84.205.25410.84.205.255
10410.84.206.0/2310.84.206.1 – 10.84.207.25410.84.207.255
10510.84.208.0/2310.84.208.1 – 10.84.209.25410.84.209.255
10610.84.210.0/2310.84.210.1 – 10.84.211.25410.84.211.255
10710.84.212.0/2310.84.212.1 – 10.84.213.25410.84.213.255
10810.84.214.0/2310.84.214.1 – 10.84.215.25410.84.215.255
10910.84.216.0/2310.84.216.1 – 10.84.217.25410.84.217.255
11010.84.218.0/2310.84.218.1 – 10.84.219.25410.84.219.255
11110.84.220.0/2310.84.220.1 – 10.84.221.25410.84.221.255
11210.84.222.0/2310.84.222.1 – 10.84.223.25410.84.223.255
11310.84.224.0/2310.84.224.1 – 10.84.225.25410.84.225.255
11410.84.226.0/2310.84.226.1 – 10.84.227.25410.84.227.255
11510.84.228.0/2310.84.228.1 – 10.84.229.25410.84.229.255
11610.84.230.0/2310.84.230.1 – 10.84.231.25410.84.231.255
11710.84.232.0/2310.84.232.1 – 10.84.233.25410.84.233.255
11810.84.234.0/2310.84.234.1 – 10.84.235.25410.84.235.255
11910.84.236.0/2310.84.236.1 – 10.84.237.25410.84.237.255
12010.84.238.0/2310.84.238.1 – 10.84.239.25410.84.239.255
12110.84.240.0/2310.84.240.1 – 10.84.241.25410.84.241.255
12210.84.242.0/2310.84.242.1 – 10.84.243.25410.84.243.255
12310.84.244.0/2310.84.244.1 – 10.84.245.25410.84.245.255
12410.84.246.0/2310.84.246.1 – 10.84.247.25410.84.247.255
12510.84.248.0/2310.84.248.1 – 10.84.249.25410.84.249.255
12610.84.250.0/2310.84.250.1 – 10.84.251.25410.84.251.255
12710.84.252.0/2310.84.252.1 – 10.84.253.25410.84.253.255
12810.84.254.0/2310.84.254.1 – 10.84.255.25410.84.255.255
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 →