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)10.48.0.0/16
network10.48.0.0/16
broadcast10.48.255.255
first host10.48.0.1
last host10.48.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.48.0.0/16
address00001010.00110000.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.00110000.00000000.00000000
broadcast00001010.00110000.11111111.11111111
green = network part, grey = host part
hex0x0a300000
decimal170917888
reverse dns0.0.48.10.in-addr.arpa
ipv4-mapped::ffff:a30:0

/16 split into /23 · 128 subnets

close ×
#networkhost rangebroadcast
110.48.0.0/2310.48.0.1 – 10.48.1.25410.48.1.255
210.48.2.0/2310.48.2.1 – 10.48.3.25410.48.3.255
310.48.4.0/2310.48.4.1 – 10.48.5.25410.48.5.255
410.48.6.0/2310.48.6.1 – 10.48.7.25410.48.7.255
510.48.8.0/2310.48.8.1 – 10.48.9.25410.48.9.255
610.48.10.0/2310.48.10.1 – 10.48.11.25410.48.11.255
710.48.12.0/2310.48.12.1 – 10.48.13.25410.48.13.255
810.48.14.0/2310.48.14.1 – 10.48.15.25410.48.15.255
910.48.16.0/2310.48.16.1 – 10.48.17.25410.48.17.255
1010.48.18.0/2310.48.18.1 – 10.48.19.25410.48.19.255
1110.48.20.0/2310.48.20.1 – 10.48.21.25410.48.21.255
1210.48.22.0/2310.48.22.1 – 10.48.23.25410.48.23.255
1310.48.24.0/2310.48.24.1 – 10.48.25.25410.48.25.255
1410.48.26.0/2310.48.26.1 – 10.48.27.25410.48.27.255
1510.48.28.0/2310.48.28.1 – 10.48.29.25410.48.29.255
1610.48.30.0/2310.48.30.1 – 10.48.31.25410.48.31.255
1710.48.32.0/2310.48.32.1 – 10.48.33.25410.48.33.255
1810.48.34.0/2310.48.34.1 – 10.48.35.25410.48.35.255
1910.48.36.0/2310.48.36.1 – 10.48.37.25410.48.37.255
2010.48.38.0/2310.48.38.1 – 10.48.39.25410.48.39.255
2110.48.40.0/2310.48.40.1 – 10.48.41.25410.48.41.255
2210.48.42.0/2310.48.42.1 – 10.48.43.25410.48.43.255
2310.48.44.0/2310.48.44.1 – 10.48.45.25410.48.45.255
2410.48.46.0/2310.48.46.1 – 10.48.47.25410.48.47.255
2510.48.48.0/2310.48.48.1 – 10.48.49.25410.48.49.255
2610.48.50.0/2310.48.50.1 – 10.48.51.25410.48.51.255
2710.48.52.0/2310.48.52.1 – 10.48.53.25410.48.53.255
2810.48.54.0/2310.48.54.1 – 10.48.55.25410.48.55.255
2910.48.56.0/2310.48.56.1 – 10.48.57.25410.48.57.255
3010.48.58.0/2310.48.58.1 – 10.48.59.25410.48.59.255
3110.48.60.0/2310.48.60.1 – 10.48.61.25410.48.61.255
3210.48.62.0/2310.48.62.1 – 10.48.63.25410.48.63.255
3310.48.64.0/2310.48.64.1 – 10.48.65.25410.48.65.255
3410.48.66.0/2310.48.66.1 – 10.48.67.25410.48.67.255
3510.48.68.0/2310.48.68.1 – 10.48.69.25410.48.69.255
3610.48.70.0/2310.48.70.1 – 10.48.71.25410.48.71.255
3710.48.72.0/2310.48.72.1 – 10.48.73.25410.48.73.255
3810.48.74.0/2310.48.74.1 – 10.48.75.25410.48.75.255
3910.48.76.0/2310.48.76.1 – 10.48.77.25410.48.77.255
4010.48.78.0/2310.48.78.1 – 10.48.79.25410.48.79.255
4110.48.80.0/2310.48.80.1 – 10.48.81.25410.48.81.255
4210.48.82.0/2310.48.82.1 – 10.48.83.25410.48.83.255
4310.48.84.0/2310.48.84.1 – 10.48.85.25410.48.85.255
4410.48.86.0/2310.48.86.1 – 10.48.87.25410.48.87.255
4510.48.88.0/2310.48.88.1 – 10.48.89.25410.48.89.255
4610.48.90.0/2310.48.90.1 – 10.48.91.25410.48.91.255
4710.48.92.0/2310.48.92.1 – 10.48.93.25410.48.93.255
4810.48.94.0/2310.48.94.1 – 10.48.95.25410.48.95.255
4910.48.96.0/2310.48.96.1 – 10.48.97.25410.48.97.255
5010.48.98.0/2310.48.98.1 – 10.48.99.25410.48.99.255
5110.48.100.0/2310.48.100.1 – 10.48.101.25410.48.101.255
5210.48.102.0/2310.48.102.1 – 10.48.103.25410.48.103.255
5310.48.104.0/2310.48.104.1 – 10.48.105.25410.48.105.255
5410.48.106.0/2310.48.106.1 – 10.48.107.25410.48.107.255
5510.48.108.0/2310.48.108.1 – 10.48.109.25410.48.109.255
5610.48.110.0/2310.48.110.1 – 10.48.111.25410.48.111.255
5710.48.112.0/2310.48.112.1 – 10.48.113.25410.48.113.255
5810.48.114.0/2310.48.114.1 – 10.48.115.25410.48.115.255
5910.48.116.0/2310.48.116.1 – 10.48.117.25410.48.117.255
6010.48.118.0/2310.48.118.1 – 10.48.119.25410.48.119.255
6110.48.120.0/2310.48.120.1 – 10.48.121.25410.48.121.255
6210.48.122.0/2310.48.122.1 – 10.48.123.25410.48.123.255
6310.48.124.0/2310.48.124.1 – 10.48.125.25410.48.125.255
6410.48.126.0/2310.48.126.1 – 10.48.127.25410.48.127.255
6510.48.128.0/2310.48.128.1 – 10.48.129.25410.48.129.255
6610.48.130.0/2310.48.130.1 – 10.48.131.25410.48.131.255
6710.48.132.0/2310.48.132.1 – 10.48.133.25410.48.133.255
6810.48.134.0/2310.48.134.1 – 10.48.135.25410.48.135.255
6910.48.136.0/2310.48.136.1 – 10.48.137.25410.48.137.255
7010.48.138.0/2310.48.138.1 – 10.48.139.25410.48.139.255
7110.48.140.0/2310.48.140.1 – 10.48.141.25410.48.141.255
7210.48.142.0/2310.48.142.1 – 10.48.143.25410.48.143.255
7310.48.144.0/2310.48.144.1 – 10.48.145.25410.48.145.255
7410.48.146.0/2310.48.146.1 – 10.48.147.25410.48.147.255
7510.48.148.0/2310.48.148.1 – 10.48.149.25410.48.149.255
7610.48.150.0/2310.48.150.1 – 10.48.151.25410.48.151.255
7710.48.152.0/2310.48.152.1 – 10.48.153.25410.48.153.255
7810.48.154.0/2310.48.154.1 – 10.48.155.25410.48.155.255
7910.48.156.0/2310.48.156.1 – 10.48.157.25410.48.157.255
8010.48.158.0/2310.48.158.1 – 10.48.159.25410.48.159.255
8110.48.160.0/2310.48.160.1 – 10.48.161.25410.48.161.255
8210.48.162.0/2310.48.162.1 – 10.48.163.25410.48.163.255
8310.48.164.0/2310.48.164.1 – 10.48.165.25410.48.165.255
8410.48.166.0/2310.48.166.1 – 10.48.167.25410.48.167.255
8510.48.168.0/2310.48.168.1 – 10.48.169.25410.48.169.255
8610.48.170.0/2310.48.170.1 – 10.48.171.25410.48.171.255
8710.48.172.0/2310.48.172.1 – 10.48.173.25410.48.173.255
8810.48.174.0/2310.48.174.1 – 10.48.175.25410.48.175.255
8910.48.176.0/2310.48.176.1 – 10.48.177.25410.48.177.255
9010.48.178.0/2310.48.178.1 – 10.48.179.25410.48.179.255
9110.48.180.0/2310.48.180.1 – 10.48.181.25410.48.181.255
9210.48.182.0/2310.48.182.1 – 10.48.183.25410.48.183.255
9310.48.184.0/2310.48.184.1 – 10.48.185.25410.48.185.255
9410.48.186.0/2310.48.186.1 – 10.48.187.25410.48.187.255
9510.48.188.0/2310.48.188.1 – 10.48.189.25410.48.189.255
9610.48.190.0/2310.48.190.1 – 10.48.191.25410.48.191.255
9710.48.192.0/2310.48.192.1 – 10.48.193.25410.48.193.255
9810.48.194.0/2310.48.194.1 – 10.48.195.25410.48.195.255
9910.48.196.0/2310.48.196.1 – 10.48.197.25410.48.197.255
10010.48.198.0/2310.48.198.1 – 10.48.199.25410.48.199.255
10110.48.200.0/2310.48.200.1 – 10.48.201.25410.48.201.255
10210.48.202.0/2310.48.202.1 – 10.48.203.25410.48.203.255
10310.48.204.0/2310.48.204.1 – 10.48.205.25410.48.205.255
10410.48.206.0/2310.48.206.1 – 10.48.207.25410.48.207.255
10510.48.208.0/2310.48.208.1 – 10.48.209.25410.48.209.255
10610.48.210.0/2310.48.210.1 – 10.48.211.25410.48.211.255
10710.48.212.0/2310.48.212.1 – 10.48.213.25410.48.213.255
10810.48.214.0/2310.48.214.1 – 10.48.215.25410.48.215.255
10910.48.216.0/2310.48.216.1 – 10.48.217.25410.48.217.255
11010.48.218.0/2310.48.218.1 – 10.48.219.25410.48.219.255
11110.48.220.0/2310.48.220.1 – 10.48.221.25410.48.221.255
11210.48.222.0/2310.48.222.1 – 10.48.223.25410.48.223.255
11310.48.224.0/2310.48.224.1 – 10.48.225.25410.48.225.255
11410.48.226.0/2310.48.226.1 – 10.48.227.25410.48.227.255
11510.48.228.0/2310.48.228.1 – 10.48.229.25410.48.229.255
11610.48.230.0/2310.48.230.1 – 10.48.231.25410.48.231.255
11710.48.232.0/2310.48.232.1 – 10.48.233.25410.48.233.255
11810.48.234.0/2310.48.234.1 – 10.48.235.25410.48.235.255
11910.48.236.0/2310.48.236.1 – 10.48.237.25410.48.237.255
12010.48.238.0/2310.48.238.1 – 10.48.239.25410.48.239.255
12110.48.240.0/2310.48.240.1 – 10.48.241.25410.48.241.255
12210.48.242.0/2310.48.242.1 – 10.48.243.25410.48.243.255
12310.48.244.0/2310.48.244.1 – 10.48.245.25410.48.245.255
12410.48.246.0/2310.48.246.1 – 10.48.247.25410.48.247.255
12510.48.248.0/2310.48.248.1 – 10.48.249.25410.48.249.255
12610.48.250.0/2310.48.250.1 – 10.48.251.25410.48.251.255
12710.48.252.0/2310.48.252.1 – 10.48.253.25410.48.253.255
12810.48.254.0/2310.48.254.1 – 10.48.255.25410.48.255.255
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 →