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)10.35.0.0/16
network10.35.0.0/16
broadcast10.35.255.255
first host10.35.0.1
last host10.35.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.35.0.0/16
address00001010.00100011.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.00100011.00000000.00000000
broadcast00001010.00100011.11111111.11111111
green = network part, grey = host part
hex0x0a230000
decimal170065920
reverse dns0.0.35.10.in-addr.arpa
ipv4-mapped::ffff:a23:0

/16 split into /23 · 128 subnets

close ×
#networkhost rangebroadcast
110.35.0.0/2310.35.0.1 – 10.35.1.25410.35.1.255
210.35.2.0/2310.35.2.1 – 10.35.3.25410.35.3.255
310.35.4.0/2310.35.4.1 – 10.35.5.25410.35.5.255
410.35.6.0/2310.35.6.1 – 10.35.7.25410.35.7.255
510.35.8.0/2310.35.8.1 – 10.35.9.25410.35.9.255
610.35.10.0/2310.35.10.1 – 10.35.11.25410.35.11.255
710.35.12.0/2310.35.12.1 – 10.35.13.25410.35.13.255
810.35.14.0/2310.35.14.1 – 10.35.15.25410.35.15.255
910.35.16.0/2310.35.16.1 – 10.35.17.25410.35.17.255
1010.35.18.0/2310.35.18.1 – 10.35.19.25410.35.19.255
1110.35.20.0/2310.35.20.1 – 10.35.21.25410.35.21.255
1210.35.22.0/2310.35.22.1 – 10.35.23.25410.35.23.255
1310.35.24.0/2310.35.24.1 – 10.35.25.25410.35.25.255
1410.35.26.0/2310.35.26.1 – 10.35.27.25410.35.27.255
1510.35.28.0/2310.35.28.1 – 10.35.29.25410.35.29.255
1610.35.30.0/2310.35.30.1 – 10.35.31.25410.35.31.255
1710.35.32.0/2310.35.32.1 – 10.35.33.25410.35.33.255
1810.35.34.0/2310.35.34.1 – 10.35.35.25410.35.35.255
1910.35.36.0/2310.35.36.1 – 10.35.37.25410.35.37.255
2010.35.38.0/2310.35.38.1 – 10.35.39.25410.35.39.255
2110.35.40.0/2310.35.40.1 – 10.35.41.25410.35.41.255
2210.35.42.0/2310.35.42.1 – 10.35.43.25410.35.43.255
2310.35.44.0/2310.35.44.1 – 10.35.45.25410.35.45.255
2410.35.46.0/2310.35.46.1 – 10.35.47.25410.35.47.255
2510.35.48.0/2310.35.48.1 – 10.35.49.25410.35.49.255
2610.35.50.0/2310.35.50.1 – 10.35.51.25410.35.51.255
2710.35.52.0/2310.35.52.1 – 10.35.53.25410.35.53.255
2810.35.54.0/2310.35.54.1 – 10.35.55.25410.35.55.255
2910.35.56.0/2310.35.56.1 – 10.35.57.25410.35.57.255
3010.35.58.0/2310.35.58.1 – 10.35.59.25410.35.59.255
3110.35.60.0/2310.35.60.1 – 10.35.61.25410.35.61.255
3210.35.62.0/2310.35.62.1 – 10.35.63.25410.35.63.255
3310.35.64.0/2310.35.64.1 – 10.35.65.25410.35.65.255
3410.35.66.0/2310.35.66.1 – 10.35.67.25410.35.67.255
3510.35.68.0/2310.35.68.1 – 10.35.69.25410.35.69.255
3610.35.70.0/2310.35.70.1 – 10.35.71.25410.35.71.255
3710.35.72.0/2310.35.72.1 – 10.35.73.25410.35.73.255
3810.35.74.0/2310.35.74.1 – 10.35.75.25410.35.75.255
3910.35.76.0/2310.35.76.1 – 10.35.77.25410.35.77.255
4010.35.78.0/2310.35.78.1 – 10.35.79.25410.35.79.255
4110.35.80.0/2310.35.80.1 – 10.35.81.25410.35.81.255
4210.35.82.0/2310.35.82.1 – 10.35.83.25410.35.83.255
4310.35.84.0/2310.35.84.1 – 10.35.85.25410.35.85.255
4410.35.86.0/2310.35.86.1 – 10.35.87.25410.35.87.255
4510.35.88.0/2310.35.88.1 – 10.35.89.25410.35.89.255
4610.35.90.0/2310.35.90.1 – 10.35.91.25410.35.91.255
4710.35.92.0/2310.35.92.1 – 10.35.93.25410.35.93.255
4810.35.94.0/2310.35.94.1 – 10.35.95.25410.35.95.255
4910.35.96.0/2310.35.96.1 – 10.35.97.25410.35.97.255
5010.35.98.0/2310.35.98.1 – 10.35.99.25410.35.99.255
5110.35.100.0/2310.35.100.1 – 10.35.101.25410.35.101.255
5210.35.102.0/2310.35.102.1 – 10.35.103.25410.35.103.255
5310.35.104.0/2310.35.104.1 – 10.35.105.25410.35.105.255
5410.35.106.0/2310.35.106.1 – 10.35.107.25410.35.107.255
5510.35.108.0/2310.35.108.1 – 10.35.109.25410.35.109.255
5610.35.110.0/2310.35.110.1 – 10.35.111.25410.35.111.255
5710.35.112.0/2310.35.112.1 – 10.35.113.25410.35.113.255
5810.35.114.0/2310.35.114.1 – 10.35.115.25410.35.115.255
5910.35.116.0/2310.35.116.1 – 10.35.117.25410.35.117.255
6010.35.118.0/2310.35.118.1 – 10.35.119.25410.35.119.255
6110.35.120.0/2310.35.120.1 – 10.35.121.25410.35.121.255
6210.35.122.0/2310.35.122.1 – 10.35.123.25410.35.123.255
6310.35.124.0/2310.35.124.1 – 10.35.125.25410.35.125.255
6410.35.126.0/2310.35.126.1 – 10.35.127.25410.35.127.255
6510.35.128.0/2310.35.128.1 – 10.35.129.25410.35.129.255
6610.35.130.0/2310.35.130.1 – 10.35.131.25410.35.131.255
6710.35.132.0/2310.35.132.1 – 10.35.133.25410.35.133.255
6810.35.134.0/2310.35.134.1 – 10.35.135.25410.35.135.255
6910.35.136.0/2310.35.136.1 – 10.35.137.25410.35.137.255
7010.35.138.0/2310.35.138.1 – 10.35.139.25410.35.139.255
7110.35.140.0/2310.35.140.1 – 10.35.141.25410.35.141.255
7210.35.142.0/2310.35.142.1 – 10.35.143.25410.35.143.255
7310.35.144.0/2310.35.144.1 – 10.35.145.25410.35.145.255
7410.35.146.0/2310.35.146.1 – 10.35.147.25410.35.147.255
7510.35.148.0/2310.35.148.1 – 10.35.149.25410.35.149.255
7610.35.150.0/2310.35.150.1 – 10.35.151.25410.35.151.255
7710.35.152.0/2310.35.152.1 – 10.35.153.25410.35.153.255
7810.35.154.0/2310.35.154.1 – 10.35.155.25410.35.155.255
7910.35.156.0/2310.35.156.1 – 10.35.157.25410.35.157.255
8010.35.158.0/2310.35.158.1 – 10.35.159.25410.35.159.255
8110.35.160.0/2310.35.160.1 – 10.35.161.25410.35.161.255
8210.35.162.0/2310.35.162.1 – 10.35.163.25410.35.163.255
8310.35.164.0/2310.35.164.1 – 10.35.165.25410.35.165.255
8410.35.166.0/2310.35.166.1 – 10.35.167.25410.35.167.255
8510.35.168.0/2310.35.168.1 – 10.35.169.25410.35.169.255
8610.35.170.0/2310.35.170.1 – 10.35.171.25410.35.171.255
8710.35.172.0/2310.35.172.1 – 10.35.173.25410.35.173.255
8810.35.174.0/2310.35.174.1 – 10.35.175.25410.35.175.255
8910.35.176.0/2310.35.176.1 – 10.35.177.25410.35.177.255
9010.35.178.0/2310.35.178.1 – 10.35.179.25410.35.179.255
9110.35.180.0/2310.35.180.1 – 10.35.181.25410.35.181.255
9210.35.182.0/2310.35.182.1 – 10.35.183.25410.35.183.255
9310.35.184.0/2310.35.184.1 – 10.35.185.25410.35.185.255
9410.35.186.0/2310.35.186.1 – 10.35.187.25410.35.187.255
9510.35.188.0/2310.35.188.1 – 10.35.189.25410.35.189.255
9610.35.190.0/2310.35.190.1 – 10.35.191.25410.35.191.255
9710.35.192.0/2310.35.192.1 – 10.35.193.25410.35.193.255
9810.35.194.0/2310.35.194.1 – 10.35.195.25410.35.195.255
9910.35.196.0/2310.35.196.1 – 10.35.197.25410.35.197.255
10010.35.198.0/2310.35.198.1 – 10.35.199.25410.35.199.255
10110.35.200.0/2310.35.200.1 – 10.35.201.25410.35.201.255
10210.35.202.0/2310.35.202.1 – 10.35.203.25410.35.203.255
10310.35.204.0/2310.35.204.1 – 10.35.205.25410.35.205.255
10410.35.206.0/2310.35.206.1 – 10.35.207.25410.35.207.255
10510.35.208.0/2310.35.208.1 – 10.35.209.25410.35.209.255
10610.35.210.0/2310.35.210.1 – 10.35.211.25410.35.211.255
10710.35.212.0/2310.35.212.1 – 10.35.213.25410.35.213.255
10810.35.214.0/2310.35.214.1 – 10.35.215.25410.35.215.255
10910.35.216.0/2310.35.216.1 – 10.35.217.25410.35.217.255
11010.35.218.0/2310.35.218.1 – 10.35.219.25410.35.219.255
11110.35.220.0/2310.35.220.1 – 10.35.221.25410.35.221.255
11210.35.222.0/2310.35.222.1 – 10.35.223.25410.35.223.255
11310.35.224.0/2310.35.224.1 – 10.35.225.25410.35.225.255
11410.35.226.0/2310.35.226.1 – 10.35.227.25410.35.227.255
11510.35.228.0/2310.35.228.1 – 10.35.229.25410.35.229.255
11610.35.230.0/2310.35.230.1 – 10.35.231.25410.35.231.255
11710.35.232.0/2310.35.232.1 – 10.35.233.25410.35.233.255
11810.35.234.0/2310.35.234.1 – 10.35.235.25410.35.235.255
11910.35.236.0/2310.35.236.1 – 10.35.237.25410.35.237.255
12010.35.238.0/2310.35.238.1 – 10.35.239.25410.35.239.255
12110.35.240.0/2310.35.240.1 – 10.35.241.25410.35.241.255
12210.35.242.0/2310.35.242.1 – 10.35.243.25410.35.243.255
12310.35.244.0/2310.35.244.1 – 10.35.245.25410.35.245.255
12410.35.246.0/2310.35.246.1 – 10.35.247.25410.35.247.255
12510.35.248.0/2310.35.248.1 – 10.35.249.25410.35.249.255
12610.35.250.0/2310.35.250.1 – 10.35.251.25410.35.251.255
12710.35.252.0/2310.35.252.1 – 10.35.253.25410.35.253.255
12810.35.254.0/2310.35.254.1 – 10.35.255.25410.35.255.255
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 →