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)10.41.0.0/16
network10.41.0.0/16
broadcast10.41.255.255
first host10.41.0.1
last host10.41.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.41.0.0/16
address00001010.00101001.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.00101001.00000000.00000000
broadcast00001010.00101001.11111111.11111111
green = network part, grey = host part
hex0x0a290000
decimal170459136
reverse dns0.0.41.10.in-addr.arpa
ipv4-mapped::ffff:a29:0

/16 split into /23 · 128 subnets

close ×
#networkhost rangebroadcast
110.41.0.0/2310.41.0.1 – 10.41.1.25410.41.1.255
210.41.2.0/2310.41.2.1 – 10.41.3.25410.41.3.255
310.41.4.0/2310.41.4.1 – 10.41.5.25410.41.5.255
410.41.6.0/2310.41.6.1 – 10.41.7.25410.41.7.255
510.41.8.0/2310.41.8.1 – 10.41.9.25410.41.9.255
610.41.10.0/2310.41.10.1 – 10.41.11.25410.41.11.255
710.41.12.0/2310.41.12.1 – 10.41.13.25410.41.13.255
810.41.14.0/2310.41.14.1 – 10.41.15.25410.41.15.255
910.41.16.0/2310.41.16.1 – 10.41.17.25410.41.17.255
1010.41.18.0/2310.41.18.1 – 10.41.19.25410.41.19.255
1110.41.20.0/2310.41.20.1 – 10.41.21.25410.41.21.255
1210.41.22.0/2310.41.22.1 – 10.41.23.25410.41.23.255
1310.41.24.0/2310.41.24.1 – 10.41.25.25410.41.25.255
1410.41.26.0/2310.41.26.1 – 10.41.27.25410.41.27.255
1510.41.28.0/2310.41.28.1 – 10.41.29.25410.41.29.255
1610.41.30.0/2310.41.30.1 – 10.41.31.25410.41.31.255
1710.41.32.0/2310.41.32.1 – 10.41.33.25410.41.33.255
1810.41.34.0/2310.41.34.1 – 10.41.35.25410.41.35.255
1910.41.36.0/2310.41.36.1 – 10.41.37.25410.41.37.255
2010.41.38.0/2310.41.38.1 – 10.41.39.25410.41.39.255
2110.41.40.0/2310.41.40.1 – 10.41.41.25410.41.41.255
2210.41.42.0/2310.41.42.1 – 10.41.43.25410.41.43.255
2310.41.44.0/2310.41.44.1 – 10.41.45.25410.41.45.255
2410.41.46.0/2310.41.46.1 – 10.41.47.25410.41.47.255
2510.41.48.0/2310.41.48.1 – 10.41.49.25410.41.49.255
2610.41.50.0/2310.41.50.1 – 10.41.51.25410.41.51.255
2710.41.52.0/2310.41.52.1 – 10.41.53.25410.41.53.255
2810.41.54.0/2310.41.54.1 – 10.41.55.25410.41.55.255
2910.41.56.0/2310.41.56.1 – 10.41.57.25410.41.57.255
3010.41.58.0/2310.41.58.1 – 10.41.59.25410.41.59.255
3110.41.60.0/2310.41.60.1 – 10.41.61.25410.41.61.255
3210.41.62.0/2310.41.62.1 – 10.41.63.25410.41.63.255
3310.41.64.0/2310.41.64.1 – 10.41.65.25410.41.65.255
3410.41.66.0/2310.41.66.1 – 10.41.67.25410.41.67.255
3510.41.68.0/2310.41.68.1 – 10.41.69.25410.41.69.255
3610.41.70.0/2310.41.70.1 – 10.41.71.25410.41.71.255
3710.41.72.0/2310.41.72.1 – 10.41.73.25410.41.73.255
3810.41.74.0/2310.41.74.1 – 10.41.75.25410.41.75.255
3910.41.76.0/2310.41.76.1 – 10.41.77.25410.41.77.255
4010.41.78.0/2310.41.78.1 – 10.41.79.25410.41.79.255
4110.41.80.0/2310.41.80.1 – 10.41.81.25410.41.81.255
4210.41.82.0/2310.41.82.1 – 10.41.83.25410.41.83.255
4310.41.84.0/2310.41.84.1 – 10.41.85.25410.41.85.255
4410.41.86.0/2310.41.86.1 – 10.41.87.25410.41.87.255
4510.41.88.0/2310.41.88.1 – 10.41.89.25410.41.89.255
4610.41.90.0/2310.41.90.1 – 10.41.91.25410.41.91.255
4710.41.92.0/2310.41.92.1 – 10.41.93.25410.41.93.255
4810.41.94.0/2310.41.94.1 – 10.41.95.25410.41.95.255
4910.41.96.0/2310.41.96.1 – 10.41.97.25410.41.97.255
5010.41.98.0/2310.41.98.1 – 10.41.99.25410.41.99.255
5110.41.100.0/2310.41.100.1 – 10.41.101.25410.41.101.255
5210.41.102.0/2310.41.102.1 – 10.41.103.25410.41.103.255
5310.41.104.0/2310.41.104.1 – 10.41.105.25410.41.105.255
5410.41.106.0/2310.41.106.1 – 10.41.107.25410.41.107.255
5510.41.108.0/2310.41.108.1 – 10.41.109.25410.41.109.255
5610.41.110.0/2310.41.110.1 – 10.41.111.25410.41.111.255
5710.41.112.0/2310.41.112.1 – 10.41.113.25410.41.113.255
5810.41.114.0/2310.41.114.1 – 10.41.115.25410.41.115.255
5910.41.116.0/2310.41.116.1 – 10.41.117.25410.41.117.255
6010.41.118.0/2310.41.118.1 – 10.41.119.25410.41.119.255
6110.41.120.0/2310.41.120.1 – 10.41.121.25410.41.121.255
6210.41.122.0/2310.41.122.1 – 10.41.123.25410.41.123.255
6310.41.124.0/2310.41.124.1 – 10.41.125.25410.41.125.255
6410.41.126.0/2310.41.126.1 – 10.41.127.25410.41.127.255
6510.41.128.0/2310.41.128.1 – 10.41.129.25410.41.129.255
6610.41.130.0/2310.41.130.1 – 10.41.131.25410.41.131.255
6710.41.132.0/2310.41.132.1 – 10.41.133.25410.41.133.255
6810.41.134.0/2310.41.134.1 – 10.41.135.25410.41.135.255
6910.41.136.0/2310.41.136.1 – 10.41.137.25410.41.137.255
7010.41.138.0/2310.41.138.1 – 10.41.139.25410.41.139.255
7110.41.140.0/2310.41.140.1 – 10.41.141.25410.41.141.255
7210.41.142.0/2310.41.142.1 – 10.41.143.25410.41.143.255
7310.41.144.0/2310.41.144.1 – 10.41.145.25410.41.145.255
7410.41.146.0/2310.41.146.1 – 10.41.147.25410.41.147.255
7510.41.148.0/2310.41.148.1 – 10.41.149.25410.41.149.255
7610.41.150.0/2310.41.150.1 – 10.41.151.25410.41.151.255
7710.41.152.0/2310.41.152.1 – 10.41.153.25410.41.153.255
7810.41.154.0/2310.41.154.1 – 10.41.155.25410.41.155.255
7910.41.156.0/2310.41.156.1 – 10.41.157.25410.41.157.255
8010.41.158.0/2310.41.158.1 – 10.41.159.25410.41.159.255
8110.41.160.0/2310.41.160.1 – 10.41.161.25410.41.161.255
8210.41.162.0/2310.41.162.1 – 10.41.163.25410.41.163.255
8310.41.164.0/2310.41.164.1 – 10.41.165.25410.41.165.255
8410.41.166.0/2310.41.166.1 – 10.41.167.25410.41.167.255
8510.41.168.0/2310.41.168.1 – 10.41.169.25410.41.169.255
8610.41.170.0/2310.41.170.1 – 10.41.171.25410.41.171.255
8710.41.172.0/2310.41.172.1 – 10.41.173.25410.41.173.255
8810.41.174.0/2310.41.174.1 – 10.41.175.25410.41.175.255
8910.41.176.0/2310.41.176.1 – 10.41.177.25410.41.177.255
9010.41.178.0/2310.41.178.1 – 10.41.179.25410.41.179.255
9110.41.180.0/2310.41.180.1 – 10.41.181.25410.41.181.255
9210.41.182.0/2310.41.182.1 – 10.41.183.25410.41.183.255
9310.41.184.0/2310.41.184.1 – 10.41.185.25410.41.185.255
9410.41.186.0/2310.41.186.1 – 10.41.187.25410.41.187.255
9510.41.188.0/2310.41.188.1 – 10.41.189.25410.41.189.255
9610.41.190.0/2310.41.190.1 – 10.41.191.25410.41.191.255
9710.41.192.0/2310.41.192.1 – 10.41.193.25410.41.193.255
9810.41.194.0/2310.41.194.1 – 10.41.195.25410.41.195.255
9910.41.196.0/2310.41.196.1 – 10.41.197.25410.41.197.255
10010.41.198.0/2310.41.198.1 – 10.41.199.25410.41.199.255
10110.41.200.0/2310.41.200.1 – 10.41.201.25410.41.201.255
10210.41.202.0/2310.41.202.1 – 10.41.203.25410.41.203.255
10310.41.204.0/2310.41.204.1 – 10.41.205.25410.41.205.255
10410.41.206.0/2310.41.206.1 – 10.41.207.25410.41.207.255
10510.41.208.0/2310.41.208.1 – 10.41.209.25410.41.209.255
10610.41.210.0/2310.41.210.1 – 10.41.211.25410.41.211.255
10710.41.212.0/2310.41.212.1 – 10.41.213.25410.41.213.255
10810.41.214.0/2310.41.214.1 – 10.41.215.25410.41.215.255
10910.41.216.0/2310.41.216.1 – 10.41.217.25410.41.217.255
11010.41.218.0/2310.41.218.1 – 10.41.219.25410.41.219.255
11110.41.220.0/2310.41.220.1 – 10.41.221.25410.41.221.255
11210.41.222.0/2310.41.222.1 – 10.41.223.25410.41.223.255
11310.41.224.0/2310.41.224.1 – 10.41.225.25410.41.225.255
11410.41.226.0/2310.41.226.1 – 10.41.227.25410.41.227.255
11510.41.228.0/2310.41.228.1 – 10.41.229.25410.41.229.255
11610.41.230.0/2310.41.230.1 – 10.41.231.25410.41.231.255
11710.41.232.0/2310.41.232.1 – 10.41.233.25410.41.233.255
11810.41.234.0/2310.41.234.1 – 10.41.235.25410.41.235.255
11910.41.236.0/2310.41.236.1 – 10.41.237.25410.41.237.255
12010.41.238.0/2310.41.238.1 – 10.41.239.25410.41.239.255
12110.41.240.0/2310.41.240.1 – 10.41.241.25410.41.241.255
12210.41.242.0/2310.41.242.1 – 10.41.243.25410.41.243.255
12310.41.244.0/2310.41.244.1 – 10.41.245.25410.41.245.255
12410.41.246.0/2310.41.246.1 – 10.41.247.25410.41.247.255
12510.41.248.0/2310.41.248.1 – 10.41.249.25410.41.249.255
12610.41.250.0/2310.41.250.1 – 10.41.251.25410.41.251.255
12710.41.252.0/2310.41.252.1 – 10.41.253.25410.41.253.255
12810.41.254.0/2310.41.254.1 – 10.41.255.25410.41.255.255
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 →