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
private IP (RFC 1918)10.58.192.0/18
network10.58.192.0/18
broadcast10.58.255.255
first host10.58.192.1
last host10.58.255.254
subnet mask255.255.192.0
wildcard0.0.63.255
addresses16,384
usable hosts16,382
classA
ipcalc 10.58.192.0/18
address00001010.00111010.11000000.00000000
subnet mask11111111.11111111.11000000.00000000
network00001010.00111010.11000000.00000000
broadcast00001010.00111010.11111111.11111111
green = network part, grey = host part
hex0x0a3ac000
decimal171622400
reverse dns0.192.58.10.in-addr.arpa
ipv4-mapped::ffff:a3a:c000

/18 split into /26 · 256 subnets

close ×
#networkhost rangebroadcast
110.58.192.0/2610.58.192.1 – 10.58.192.6210.58.192.63
210.58.192.64/2610.58.192.65 – 10.58.192.12610.58.192.127
310.58.192.128/2610.58.192.129 – 10.58.192.19010.58.192.191
410.58.192.192/2610.58.192.193 – 10.58.192.25410.58.192.255
510.58.193.0/2610.58.193.1 – 10.58.193.6210.58.193.63
610.58.193.64/2610.58.193.65 – 10.58.193.12610.58.193.127
710.58.193.128/2610.58.193.129 – 10.58.193.19010.58.193.191
810.58.193.192/2610.58.193.193 – 10.58.193.25410.58.193.255
910.58.194.0/2610.58.194.1 – 10.58.194.6210.58.194.63
1010.58.194.64/2610.58.194.65 – 10.58.194.12610.58.194.127
1110.58.194.128/2610.58.194.129 – 10.58.194.19010.58.194.191
1210.58.194.192/2610.58.194.193 – 10.58.194.25410.58.194.255
1310.58.195.0/2610.58.195.1 – 10.58.195.6210.58.195.63
1410.58.195.64/2610.58.195.65 – 10.58.195.12610.58.195.127
1510.58.195.128/2610.58.195.129 – 10.58.195.19010.58.195.191
1610.58.195.192/2610.58.195.193 – 10.58.195.25410.58.195.255
1710.58.196.0/2610.58.196.1 – 10.58.196.6210.58.196.63
1810.58.196.64/2610.58.196.65 – 10.58.196.12610.58.196.127
1910.58.196.128/2610.58.196.129 – 10.58.196.19010.58.196.191
2010.58.196.192/2610.58.196.193 – 10.58.196.25410.58.196.255
2110.58.197.0/2610.58.197.1 – 10.58.197.6210.58.197.63
2210.58.197.64/2610.58.197.65 – 10.58.197.12610.58.197.127
2310.58.197.128/2610.58.197.129 – 10.58.197.19010.58.197.191
2410.58.197.192/2610.58.197.193 – 10.58.197.25410.58.197.255
2510.58.198.0/2610.58.198.1 – 10.58.198.6210.58.198.63
2610.58.198.64/2610.58.198.65 – 10.58.198.12610.58.198.127
2710.58.198.128/2610.58.198.129 – 10.58.198.19010.58.198.191
2810.58.198.192/2610.58.198.193 – 10.58.198.25410.58.198.255
2910.58.199.0/2610.58.199.1 – 10.58.199.6210.58.199.63
3010.58.199.64/2610.58.199.65 – 10.58.199.12610.58.199.127
3110.58.199.128/2610.58.199.129 – 10.58.199.19010.58.199.191
3210.58.199.192/2610.58.199.193 – 10.58.199.25410.58.199.255
3310.58.200.0/2610.58.200.1 – 10.58.200.6210.58.200.63
3410.58.200.64/2610.58.200.65 – 10.58.200.12610.58.200.127
3510.58.200.128/2610.58.200.129 – 10.58.200.19010.58.200.191
3610.58.200.192/2610.58.200.193 – 10.58.200.25410.58.200.255
3710.58.201.0/2610.58.201.1 – 10.58.201.6210.58.201.63
3810.58.201.64/2610.58.201.65 – 10.58.201.12610.58.201.127
3910.58.201.128/2610.58.201.129 – 10.58.201.19010.58.201.191
4010.58.201.192/2610.58.201.193 – 10.58.201.25410.58.201.255
4110.58.202.0/2610.58.202.1 – 10.58.202.6210.58.202.63
4210.58.202.64/2610.58.202.65 – 10.58.202.12610.58.202.127
4310.58.202.128/2610.58.202.129 – 10.58.202.19010.58.202.191
4410.58.202.192/2610.58.202.193 – 10.58.202.25410.58.202.255
4510.58.203.0/2610.58.203.1 – 10.58.203.6210.58.203.63
4610.58.203.64/2610.58.203.65 – 10.58.203.12610.58.203.127
4710.58.203.128/2610.58.203.129 – 10.58.203.19010.58.203.191
4810.58.203.192/2610.58.203.193 – 10.58.203.25410.58.203.255
4910.58.204.0/2610.58.204.1 – 10.58.204.6210.58.204.63
5010.58.204.64/2610.58.204.65 – 10.58.204.12610.58.204.127
5110.58.204.128/2610.58.204.129 – 10.58.204.19010.58.204.191
5210.58.204.192/2610.58.204.193 – 10.58.204.25410.58.204.255
5310.58.205.0/2610.58.205.1 – 10.58.205.6210.58.205.63
5410.58.205.64/2610.58.205.65 – 10.58.205.12610.58.205.127
5510.58.205.128/2610.58.205.129 – 10.58.205.19010.58.205.191
5610.58.205.192/2610.58.205.193 – 10.58.205.25410.58.205.255
5710.58.206.0/2610.58.206.1 – 10.58.206.6210.58.206.63
5810.58.206.64/2610.58.206.65 – 10.58.206.12610.58.206.127
5910.58.206.128/2610.58.206.129 – 10.58.206.19010.58.206.191
6010.58.206.192/2610.58.206.193 – 10.58.206.25410.58.206.255
6110.58.207.0/2610.58.207.1 – 10.58.207.6210.58.207.63
6210.58.207.64/2610.58.207.65 – 10.58.207.12610.58.207.127
6310.58.207.128/2610.58.207.129 – 10.58.207.19010.58.207.191
6410.58.207.192/2610.58.207.193 – 10.58.207.25410.58.207.255
6510.58.208.0/2610.58.208.1 – 10.58.208.6210.58.208.63
6610.58.208.64/2610.58.208.65 – 10.58.208.12610.58.208.127
6710.58.208.128/2610.58.208.129 – 10.58.208.19010.58.208.191
6810.58.208.192/2610.58.208.193 – 10.58.208.25410.58.208.255
6910.58.209.0/2610.58.209.1 – 10.58.209.6210.58.209.63
7010.58.209.64/2610.58.209.65 – 10.58.209.12610.58.209.127
7110.58.209.128/2610.58.209.129 – 10.58.209.19010.58.209.191
7210.58.209.192/2610.58.209.193 – 10.58.209.25410.58.209.255
7310.58.210.0/2610.58.210.1 – 10.58.210.6210.58.210.63
7410.58.210.64/2610.58.210.65 – 10.58.210.12610.58.210.127
7510.58.210.128/2610.58.210.129 – 10.58.210.19010.58.210.191
7610.58.210.192/2610.58.210.193 – 10.58.210.25410.58.210.255
7710.58.211.0/2610.58.211.1 – 10.58.211.6210.58.211.63
7810.58.211.64/2610.58.211.65 – 10.58.211.12610.58.211.127
7910.58.211.128/2610.58.211.129 – 10.58.211.19010.58.211.191
8010.58.211.192/2610.58.211.193 – 10.58.211.25410.58.211.255
8110.58.212.0/2610.58.212.1 – 10.58.212.6210.58.212.63
8210.58.212.64/2610.58.212.65 – 10.58.212.12610.58.212.127
8310.58.212.128/2610.58.212.129 – 10.58.212.19010.58.212.191
8410.58.212.192/2610.58.212.193 – 10.58.212.25410.58.212.255
8510.58.213.0/2610.58.213.1 – 10.58.213.6210.58.213.63
8610.58.213.64/2610.58.213.65 – 10.58.213.12610.58.213.127
8710.58.213.128/2610.58.213.129 – 10.58.213.19010.58.213.191
8810.58.213.192/2610.58.213.193 – 10.58.213.25410.58.213.255
8910.58.214.0/2610.58.214.1 – 10.58.214.6210.58.214.63
9010.58.214.64/2610.58.214.65 – 10.58.214.12610.58.214.127
9110.58.214.128/2610.58.214.129 – 10.58.214.19010.58.214.191
9210.58.214.192/2610.58.214.193 – 10.58.214.25410.58.214.255
9310.58.215.0/2610.58.215.1 – 10.58.215.6210.58.215.63
9410.58.215.64/2610.58.215.65 – 10.58.215.12610.58.215.127
9510.58.215.128/2610.58.215.129 – 10.58.215.19010.58.215.191
9610.58.215.192/2610.58.215.193 – 10.58.215.25410.58.215.255
9710.58.216.0/2610.58.216.1 – 10.58.216.6210.58.216.63
9810.58.216.64/2610.58.216.65 – 10.58.216.12610.58.216.127
9910.58.216.128/2610.58.216.129 – 10.58.216.19010.58.216.191
10010.58.216.192/2610.58.216.193 – 10.58.216.25410.58.216.255
10110.58.217.0/2610.58.217.1 – 10.58.217.6210.58.217.63
10210.58.217.64/2610.58.217.65 – 10.58.217.12610.58.217.127
10310.58.217.128/2610.58.217.129 – 10.58.217.19010.58.217.191
10410.58.217.192/2610.58.217.193 – 10.58.217.25410.58.217.255
10510.58.218.0/2610.58.218.1 – 10.58.218.6210.58.218.63
10610.58.218.64/2610.58.218.65 – 10.58.218.12610.58.218.127
10710.58.218.128/2610.58.218.129 – 10.58.218.19010.58.218.191
10810.58.218.192/2610.58.218.193 – 10.58.218.25410.58.218.255
10910.58.219.0/2610.58.219.1 – 10.58.219.6210.58.219.63
11010.58.219.64/2610.58.219.65 – 10.58.219.12610.58.219.127
11110.58.219.128/2610.58.219.129 – 10.58.219.19010.58.219.191
11210.58.219.192/2610.58.219.193 – 10.58.219.25410.58.219.255
11310.58.220.0/2610.58.220.1 – 10.58.220.6210.58.220.63
11410.58.220.64/2610.58.220.65 – 10.58.220.12610.58.220.127
11510.58.220.128/2610.58.220.129 – 10.58.220.19010.58.220.191
11610.58.220.192/2610.58.220.193 – 10.58.220.25410.58.220.255
11710.58.221.0/2610.58.221.1 – 10.58.221.6210.58.221.63
11810.58.221.64/2610.58.221.65 – 10.58.221.12610.58.221.127
11910.58.221.128/2610.58.221.129 – 10.58.221.19010.58.221.191
12010.58.221.192/2610.58.221.193 – 10.58.221.25410.58.221.255
12110.58.222.0/2610.58.222.1 – 10.58.222.6210.58.222.63
12210.58.222.64/2610.58.222.65 – 10.58.222.12610.58.222.127
12310.58.222.128/2610.58.222.129 – 10.58.222.19010.58.222.191
12410.58.222.192/2610.58.222.193 – 10.58.222.25410.58.222.255
12510.58.223.0/2610.58.223.1 – 10.58.223.6210.58.223.63
12610.58.223.64/2610.58.223.65 – 10.58.223.12610.58.223.127
12710.58.223.128/2610.58.223.129 – 10.58.223.19010.58.223.191
12810.58.223.192/2610.58.223.193 – 10.58.223.25410.58.223.255
12910.58.224.0/2610.58.224.1 – 10.58.224.6210.58.224.63
13010.58.224.64/2610.58.224.65 – 10.58.224.12610.58.224.127
13110.58.224.128/2610.58.224.129 – 10.58.224.19010.58.224.191
13210.58.224.192/2610.58.224.193 – 10.58.224.25410.58.224.255
13310.58.225.0/2610.58.225.1 – 10.58.225.6210.58.225.63
13410.58.225.64/2610.58.225.65 – 10.58.225.12610.58.225.127
13510.58.225.128/2610.58.225.129 – 10.58.225.19010.58.225.191
13610.58.225.192/2610.58.225.193 – 10.58.225.25410.58.225.255
13710.58.226.0/2610.58.226.1 – 10.58.226.6210.58.226.63
13810.58.226.64/2610.58.226.65 – 10.58.226.12610.58.226.127
13910.58.226.128/2610.58.226.129 – 10.58.226.19010.58.226.191
14010.58.226.192/2610.58.226.193 – 10.58.226.25410.58.226.255
14110.58.227.0/2610.58.227.1 – 10.58.227.6210.58.227.63
14210.58.227.64/2610.58.227.65 – 10.58.227.12610.58.227.127
14310.58.227.128/2610.58.227.129 – 10.58.227.19010.58.227.191
14410.58.227.192/2610.58.227.193 – 10.58.227.25410.58.227.255
14510.58.228.0/2610.58.228.1 – 10.58.228.6210.58.228.63
14610.58.228.64/2610.58.228.65 – 10.58.228.12610.58.228.127
14710.58.228.128/2610.58.228.129 – 10.58.228.19010.58.228.191
14810.58.228.192/2610.58.228.193 – 10.58.228.25410.58.228.255
14910.58.229.0/2610.58.229.1 – 10.58.229.6210.58.229.63
15010.58.229.64/2610.58.229.65 – 10.58.229.12610.58.229.127
15110.58.229.128/2610.58.229.129 – 10.58.229.19010.58.229.191
15210.58.229.192/2610.58.229.193 – 10.58.229.25410.58.229.255
15310.58.230.0/2610.58.230.1 – 10.58.230.6210.58.230.63
15410.58.230.64/2610.58.230.65 – 10.58.230.12610.58.230.127
15510.58.230.128/2610.58.230.129 – 10.58.230.19010.58.230.191
15610.58.230.192/2610.58.230.193 – 10.58.230.25410.58.230.255
15710.58.231.0/2610.58.231.1 – 10.58.231.6210.58.231.63
15810.58.231.64/2610.58.231.65 – 10.58.231.12610.58.231.127
15910.58.231.128/2610.58.231.129 – 10.58.231.19010.58.231.191
16010.58.231.192/2610.58.231.193 – 10.58.231.25410.58.231.255
16110.58.232.0/2610.58.232.1 – 10.58.232.6210.58.232.63
16210.58.232.64/2610.58.232.65 – 10.58.232.12610.58.232.127
16310.58.232.128/2610.58.232.129 – 10.58.232.19010.58.232.191
16410.58.232.192/2610.58.232.193 – 10.58.232.25410.58.232.255
16510.58.233.0/2610.58.233.1 – 10.58.233.6210.58.233.63
16610.58.233.64/2610.58.233.65 – 10.58.233.12610.58.233.127
16710.58.233.128/2610.58.233.129 – 10.58.233.19010.58.233.191
16810.58.233.192/2610.58.233.193 – 10.58.233.25410.58.233.255
16910.58.234.0/2610.58.234.1 – 10.58.234.6210.58.234.63
17010.58.234.64/2610.58.234.65 – 10.58.234.12610.58.234.127
17110.58.234.128/2610.58.234.129 – 10.58.234.19010.58.234.191
17210.58.234.192/2610.58.234.193 – 10.58.234.25410.58.234.255
17310.58.235.0/2610.58.235.1 – 10.58.235.6210.58.235.63
17410.58.235.64/2610.58.235.65 – 10.58.235.12610.58.235.127
17510.58.235.128/2610.58.235.129 – 10.58.235.19010.58.235.191
17610.58.235.192/2610.58.235.193 – 10.58.235.25410.58.235.255
17710.58.236.0/2610.58.236.1 – 10.58.236.6210.58.236.63
17810.58.236.64/2610.58.236.65 – 10.58.236.12610.58.236.127
17910.58.236.128/2610.58.236.129 – 10.58.236.19010.58.236.191
18010.58.236.192/2610.58.236.193 – 10.58.236.25410.58.236.255
18110.58.237.0/2610.58.237.1 – 10.58.237.6210.58.237.63
18210.58.237.64/2610.58.237.65 – 10.58.237.12610.58.237.127
18310.58.237.128/2610.58.237.129 – 10.58.237.19010.58.237.191
18410.58.237.192/2610.58.237.193 – 10.58.237.25410.58.237.255
18510.58.238.0/2610.58.238.1 – 10.58.238.6210.58.238.63
18610.58.238.64/2610.58.238.65 – 10.58.238.12610.58.238.127
18710.58.238.128/2610.58.238.129 – 10.58.238.19010.58.238.191
18810.58.238.192/2610.58.238.193 – 10.58.238.25410.58.238.255
18910.58.239.0/2610.58.239.1 – 10.58.239.6210.58.239.63
19010.58.239.64/2610.58.239.65 – 10.58.239.12610.58.239.127
19110.58.239.128/2610.58.239.129 – 10.58.239.19010.58.239.191
19210.58.239.192/2610.58.239.193 – 10.58.239.25410.58.239.255
19310.58.240.0/2610.58.240.1 – 10.58.240.6210.58.240.63
19410.58.240.64/2610.58.240.65 – 10.58.240.12610.58.240.127
19510.58.240.128/2610.58.240.129 – 10.58.240.19010.58.240.191
19610.58.240.192/2610.58.240.193 – 10.58.240.25410.58.240.255
19710.58.241.0/2610.58.241.1 – 10.58.241.6210.58.241.63
19810.58.241.64/2610.58.241.65 – 10.58.241.12610.58.241.127
19910.58.241.128/2610.58.241.129 – 10.58.241.19010.58.241.191
20010.58.241.192/2610.58.241.193 – 10.58.241.25410.58.241.255
20110.58.242.0/2610.58.242.1 – 10.58.242.6210.58.242.63
20210.58.242.64/2610.58.242.65 – 10.58.242.12610.58.242.127
20310.58.242.128/2610.58.242.129 – 10.58.242.19010.58.242.191
20410.58.242.192/2610.58.242.193 – 10.58.242.25410.58.242.255
20510.58.243.0/2610.58.243.1 – 10.58.243.6210.58.243.63
20610.58.243.64/2610.58.243.65 – 10.58.243.12610.58.243.127
20710.58.243.128/2610.58.243.129 – 10.58.243.19010.58.243.191
20810.58.243.192/2610.58.243.193 – 10.58.243.25410.58.243.255
20910.58.244.0/2610.58.244.1 – 10.58.244.6210.58.244.63
21010.58.244.64/2610.58.244.65 – 10.58.244.12610.58.244.127
21110.58.244.128/2610.58.244.129 – 10.58.244.19010.58.244.191
21210.58.244.192/2610.58.244.193 – 10.58.244.25410.58.244.255
21310.58.245.0/2610.58.245.1 – 10.58.245.6210.58.245.63
21410.58.245.64/2610.58.245.65 – 10.58.245.12610.58.245.127
21510.58.245.128/2610.58.245.129 – 10.58.245.19010.58.245.191
21610.58.245.192/2610.58.245.193 – 10.58.245.25410.58.245.255
21710.58.246.0/2610.58.246.1 – 10.58.246.6210.58.246.63
21810.58.246.64/2610.58.246.65 – 10.58.246.12610.58.246.127
21910.58.246.128/2610.58.246.129 – 10.58.246.19010.58.246.191
22010.58.246.192/2610.58.246.193 – 10.58.246.25410.58.246.255
22110.58.247.0/2610.58.247.1 – 10.58.247.6210.58.247.63
22210.58.247.64/2610.58.247.65 – 10.58.247.12610.58.247.127
22310.58.247.128/2610.58.247.129 – 10.58.247.19010.58.247.191
22410.58.247.192/2610.58.247.193 – 10.58.247.25410.58.247.255
22510.58.248.0/2610.58.248.1 – 10.58.248.6210.58.248.63
22610.58.248.64/2610.58.248.65 – 10.58.248.12610.58.248.127
22710.58.248.128/2610.58.248.129 – 10.58.248.19010.58.248.191
22810.58.248.192/2610.58.248.193 – 10.58.248.25410.58.248.255
22910.58.249.0/2610.58.249.1 – 10.58.249.6210.58.249.63
23010.58.249.64/2610.58.249.65 – 10.58.249.12610.58.249.127
23110.58.249.128/2610.58.249.129 – 10.58.249.19010.58.249.191
23210.58.249.192/2610.58.249.193 – 10.58.249.25410.58.249.255
23310.58.250.0/2610.58.250.1 – 10.58.250.6210.58.250.63
23410.58.250.64/2610.58.250.65 – 10.58.250.12610.58.250.127
23510.58.250.128/2610.58.250.129 – 10.58.250.19010.58.250.191
23610.58.250.192/2610.58.250.193 – 10.58.250.25410.58.250.255
23710.58.251.0/2610.58.251.1 – 10.58.251.6210.58.251.63
23810.58.251.64/2610.58.251.65 – 10.58.251.12610.58.251.127
23910.58.251.128/2610.58.251.129 – 10.58.251.19010.58.251.191
24010.58.251.192/2610.58.251.193 – 10.58.251.25410.58.251.255
24110.58.252.0/2610.58.252.1 – 10.58.252.6210.58.252.63
24210.58.252.64/2610.58.252.65 – 10.58.252.12610.58.252.127
24310.58.252.128/2610.58.252.129 – 10.58.252.19010.58.252.191
24410.58.252.192/2610.58.252.193 – 10.58.252.25410.58.252.255
24510.58.253.0/2610.58.253.1 – 10.58.253.6210.58.253.63
24610.58.253.64/2610.58.253.65 – 10.58.253.12610.58.253.127
24710.58.253.128/2610.58.253.129 – 10.58.253.19010.58.253.191
24810.58.253.192/2610.58.253.193 – 10.58.253.25410.58.253.255
24910.58.254.0/2610.58.254.1 – 10.58.254.6210.58.254.63
25010.58.254.64/2610.58.254.65 – 10.58.254.12610.58.254.127
25110.58.254.128/2610.58.254.129 – 10.58.254.19010.58.254.191
25210.58.254.192/2610.58.254.193 – 10.58.254.25410.58.254.255
25310.58.255.0/2610.58.255.1 – 10.58.255.6210.58.255.63
25410.58.255.64/2610.58.255.65 – 10.58.255.12610.58.255.127
25510.58.255.128/2610.58.255.129 – 10.58.255.19010.58.255.191
25610.58.255.192/2610.58.255.193 – 10.58.255.25410.58.255.255
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /18
/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-
/18255.255.192.016,38416,3821
/19255.255.224.08,1928,1902 split →
/20255.255.240.04,0964,0944 split →
/21255.255.248.02,0482,0468 split →
/22255.255.252.01,0241,02216 split →
/23255.255.254.051251032 split →
/24255.255.255.025625464 split →
/25255.255.255.128128126128 split →
/26255.255.255.1926462256 split →
/27255.255.255.2243230512 split →
/28255.255.255.24016141,024 split →
/29255.255.255.248862,048 split →
/30255.255.255.252424,096 split →
/31255.255.255.254228,192 split →
/32255.255.255.2551116,384 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 →