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)10.7.224.0/19
network10.7.224.0/19
broadcast10.7.255.255
first host10.7.224.1
last host10.7.255.254
subnet mask255.255.224.0
wildcard0.0.31.255
addresses8,192
usable hosts8,190
classA
ipcalc 10.7.224.0/19
address00001010.00000111.11100000.00000000
subnet mask11111111.11111111.11100000.00000000
network00001010.00000111.11100000.00000000
broadcast00001010.00000111.11111111.11111111
green = network part, grey = host part
hex0x0a07e000
decimal168288256
reverse dns0.224.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:e000

/19 split into /26 · 128 subnets

close ×
#networkhost rangebroadcast
110.7.224.0/2610.7.224.1 – 10.7.224.6210.7.224.63
210.7.224.64/2610.7.224.65 – 10.7.224.12610.7.224.127
310.7.224.128/2610.7.224.129 – 10.7.224.19010.7.224.191
410.7.224.192/2610.7.224.193 – 10.7.224.25410.7.224.255
510.7.225.0/2610.7.225.1 – 10.7.225.6210.7.225.63
610.7.225.64/2610.7.225.65 – 10.7.225.12610.7.225.127
710.7.225.128/2610.7.225.129 – 10.7.225.19010.7.225.191
810.7.225.192/2610.7.225.193 – 10.7.225.25410.7.225.255
910.7.226.0/2610.7.226.1 – 10.7.226.6210.7.226.63
1010.7.226.64/2610.7.226.65 – 10.7.226.12610.7.226.127
1110.7.226.128/2610.7.226.129 – 10.7.226.19010.7.226.191
1210.7.226.192/2610.7.226.193 – 10.7.226.25410.7.226.255
1310.7.227.0/2610.7.227.1 – 10.7.227.6210.7.227.63
1410.7.227.64/2610.7.227.65 – 10.7.227.12610.7.227.127
1510.7.227.128/2610.7.227.129 – 10.7.227.19010.7.227.191
1610.7.227.192/2610.7.227.193 – 10.7.227.25410.7.227.255
1710.7.228.0/2610.7.228.1 – 10.7.228.6210.7.228.63
1810.7.228.64/2610.7.228.65 – 10.7.228.12610.7.228.127
1910.7.228.128/2610.7.228.129 – 10.7.228.19010.7.228.191
2010.7.228.192/2610.7.228.193 – 10.7.228.25410.7.228.255
2110.7.229.0/2610.7.229.1 – 10.7.229.6210.7.229.63
2210.7.229.64/2610.7.229.65 – 10.7.229.12610.7.229.127
2310.7.229.128/2610.7.229.129 – 10.7.229.19010.7.229.191
2410.7.229.192/2610.7.229.193 – 10.7.229.25410.7.229.255
2510.7.230.0/2610.7.230.1 – 10.7.230.6210.7.230.63
2610.7.230.64/2610.7.230.65 – 10.7.230.12610.7.230.127
2710.7.230.128/2610.7.230.129 – 10.7.230.19010.7.230.191
2810.7.230.192/2610.7.230.193 – 10.7.230.25410.7.230.255
2910.7.231.0/2610.7.231.1 – 10.7.231.6210.7.231.63
3010.7.231.64/2610.7.231.65 – 10.7.231.12610.7.231.127
3110.7.231.128/2610.7.231.129 – 10.7.231.19010.7.231.191
3210.7.231.192/2610.7.231.193 – 10.7.231.25410.7.231.255
3310.7.232.0/2610.7.232.1 – 10.7.232.6210.7.232.63
3410.7.232.64/2610.7.232.65 – 10.7.232.12610.7.232.127
3510.7.232.128/2610.7.232.129 – 10.7.232.19010.7.232.191
3610.7.232.192/2610.7.232.193 – 10.7.232.25410.7.232.255
3710.7.233.0/2610.7.233.1 – 10.7.233.6210.7.233.63
3810.7.233.64/2610.7.233.65 – 10.7.233.12610.7.233.127
3910.7.233.128/2610.7.233.129 – 10.7.233.19010.7.233.191
4010.7.233.192/2610.7.233.193 – 10.7.233.25410.7.233.255
4110.7.234.0/2610.7.234.1 – 10.7.234.6210.7.234.63
4210.7.234.64/2610.7.234.65 – 10.7.234.12610.7.234.127
4310.7.234.128/2610.7.234.129 – 10.7.234.19010.7.234.191
4410.7.234.192/2610.7.234.193 – 10.7.234.25410.7.234.255
4510.7.235.0/2610.7.235.1 – 10.7.235.6210.7.235.63
4610.7.235.64/2610.7.235.65 – 10.7.235.12610.7.235.127
4710.7.235.128/2610.7.235.129 – 10.7.235.19010.7.235.191
4810.7.235.192/2610.7.235.193 – 10.7.235.25410.7.235.255
4910.7.236.0/2610.7.236.1 – 10.7.236.6210.7.236.63
5010.7.236.64/2610.7.236.65 – 10.7.236.12610.7.236.127
5110.7.236.128/2610.7.236.129 – 10.7.236.19010.7.236.191
5210.7.236.192/2610.7.236.193 – 10.7.236.25410.7.236.255
5310.7.237.0/2610.7.237.1 – 10.7.237.6210.7.237.63
5410.7.237.64/2610.7.237.65 – 10.7.237.12610.7.237.127
5510.7.237.128/2610.7.237.129 – 10.7.237.19010.7.237.191
5610.7.237.192/2610.7.237.193 – 10.7.237.25410.7.237.255
5710.7.238.0/2610.7.238.1 – 10.7.238.6210.7.238.63
5810.7.238.64/2610.7.238.65 – 10.7.238.12610.7.238.127
5910.7.238.128/2610.7.238.129 – 10.7.238.19010.7.238.191
6010.7.238.192/2610.7.238.193 – 10.7.238.25410.7.238.255
6110.7.239.0/2610.7.239.1 – 10.7.239.6210.7.239.63
6210.7.239.64/2610.7.239.65 – 10.7.239.12610.7.239.127
6310.7.239.128/2610.7.239.129 – 10.7.239.19010.7.239.191
6410.7.239.192/2610.7.239.193 – 10.7.239.25410.7.239.255
6510.7.240.0/2610.7.240.1 – 10.7.240.6210.7.240.63
6610.7.240.64/2610.7.240.65 – 10.7.240.12610.7.240.127
6710.7.240.128/2610.7.240.129 – 10.7.240.19010.7.240.191
6810.7.240.192/2610.7.240.193 – 10.7.240.25410.7.240.255
6910.7.241.0/2610.7.241.1 – 10.7.241.6210.7.241.63
7010.7.241.64/2610.7.241.65 – 10.7.241.12610.7.241.127
7110.7.241.128/2610.7.241.129 – 10.7.241.19010.7.241.191
7210.7.241.192/2610.7.241.193 – 10.7.241.25410.7.241.255
7310.7.242.0/2610.7.242.1 – 10.7.242.6210.7.242.63
7410.7.242.64/2610.7.242.65 – 10.7.242.12610.7.242.127
7510.7.242.128/2610.7.242.129 – 10.7.242.19010.7.242.191
7610.7.242.192/2610.7.242.193 – 10.7.242.25410.7.242.255
7710.7.243.0/2610.7.243.1 – 10.7.243.6210.7.243.63
7810.7.243.64/2610.7.243.65 – 10.7.243.12610.7.243.127
7910.7.243.128/2610.7.243.129 – 10.7.243.19010.7.243.191
8010.7.243.192/2610.7.243.193 – 10.7.243.25410.7.243.255
8110.7.244.0/2610.7.244.1 – 10.7.244.6210.7.244.63
8210.7.244.64/2610.7.244.65 – 10.7.244.12610.7.244.127
8310.7.244.128/2610.7.244.129 – 10.7.244.19010.7.244.191
8410.7.244.192/2610.7.244.193 – 10.7.244.25410.7.244.255
8510.7.245.0/2610.7.245.1 – 10.7.245.6210.7.245.63
8610.7.245.64/2610.7.245.65 – 10.7.245.12610.7.245.127
8710.7.245.128/2610.7.245.129 – 10.7.245.19010.7.245.191
8810.7.245.192/2610.7.245.193 – 10.7.245.25410.7.245.255
8910.7.246.0/2610.7.246.1 – 10.7.246.6210.7.246.63
9010.7.246.64/2610.7.246.65 – 10.7.246.12610.7.246.127
9110.7.246.128/2610.7.246.129 – 10.7.246.19010.7.246.191
9210.7.246.192/2610.7.246.193 – 10.7.246.25410.7.246.255
9310.7.247.0/2610.7.247.1 – 10.7.247.6210.7.247.63
9410.7.247.64/2610.7.247.65 – 10.7.247.12610.7.247.127
9510.7.247.128/2610.7.247.129 – 10.7.247.19010.7.247.191
9610.7.247.192/2610.7.247.193 – 10.7.247.25410.7.247.255
9710.7.248.0/2610.7.248.1 – 10.7.248.6210.7.248.63
9810.7.248.64/2610.7.248.65 – 10.7.248.12610.7.248.127
9910.7.248.128/2610.7.248.129 – 10.7.248.19010.7.248.191
10010.7.248.192/2610.7.248.193 – 10.7.248.25410.7.248.255
10110.7.249.0/2610.7.249.1 – 10.7.249.6210.7.249.63
10210.7.249.64/2610.7.249.65 – 10.7.249.12610.7.249.127
10310.7.249.128/2610.7.249.129 – 10.7.249.19010.7.249.191
10410.7.249.192/2610.7.249.193 – 10.7.249.25410.7.249.255
10510.7.250.0/2610.7.250.1 – 10.7.250.6210.7.250.63
10610.7.250.64/2610.7.250.65 – 10.7.250.12610.7.250.127
10710.7.250.128/2610.7.250.129 – 10.7.250.19010.7.250.191
10810.7.250.192/2610.7.250.193 – 10.7.250.25410.7.250.255
10910.7.251.0/2610.7.251.1 – 10.7.251.6210.7.251.63
11010.7.251.64/2610.7.251.65 – 10.7.251.12610.7.251.127
11110.7.251.128/2610.7.251.129 – 10.7.251.19010.7.251.191
11210.7.251.192/2610.7.251.193 – 10.7.251.25410.7.251.255
11310.7.252.0/2610.7.252.1 – 10.7.252.6210.7.252.63
11410.7.252.64/2610.7.252.65 – 10.7.252.12610.7.252.127
11510.7.252.128/2610.7.252.129 – 10.7.252.19010.7.252.191
11610.7.252.192/2610.7.252.193 – 10.7.252.25410.7.252.255
11710.7.253.0/2610.7.253.1 – 10.7.253.6210.7.253.63
11810.7.253.64/2610.7.253.65 – 10.7.253.12610.7.253.127
11910.7.253.128/2610.7.253.129 – 10.7.253.19010.7.253.191
12010.7.253.192/2610.7.253.193 – 10.7.253.25410.7.253.255
12110.7.254.0/2610.7.254.1 – 10.7.254.6210.7.254.63
12210.7.254.64/2610.7.254.65 – 10.7.254.12610.7.254.127
12310.7.254.128/2610.7.254.129 – 10.7.254.19010.7.254.191
12410.7.254.192/2610.7.254.193 – 10.7.254.25410.7.254.255
12510.7.255.0/2610.7.255.1 – 10.7.255.6210.7.255.63
12610.7.255.64/2610.7.255.65 – 10.7.255.12610.7.255.127
12710.7.255.128/2610.7.255.129 – 10.7.255.19010.7.255.191
12810.7.255.192/2610.7.255.193 – 10.7.255.25410.7.255.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /19
/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-
/16255.255.0.065,53665,534-
/17255.255.128.032,76832,766-
/18255.255.192.016,38416,382-
/19255.255.224.08,1928,1901
/20255.255.240.04,0964,0942 split →
/21255.255.248.02,0482,0464 split →
/22255.255.252.01,0241,0228 split →
/23255.255.254.051251016 split →
/24255.255.255.025625432 split →
/25255.255.255.12812812664 split →
/26255.255.255.1926462128 split →
/27255.255.255.2243230256 split →
/28255.255.255.2401614512 split →
/29255.255.255.248861,024 split →
/30255.255.255.252422,048 split →
/31255.255.255.254224,096 split →
/32255.255.255.255118,192 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 →