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)10.9.224.0/20
network10.9.224.0/20
broadcast10.9.239.255
first host10.9.224.1
last host10.9.239.254
subnet mask255.255.240.0
wildcard0.0.15.255
addresses4,096
usable hosts4,094
classA
ipcalc 10.9.224.0/20
address00001010.00001001.11100000.00000000
subnet mask11111111.11111111.11110000.00000000
network00001010.00001001.11100000.00000000
broadcast00001010.00001001.11101111.11111111
green = network part, grey = host part
hex0x0a09e000
decimal168419328
reverse dns0.224.9.10.in-addr.arpa
ipv4-mapped::ffff:a09:e000

/20 split into /28 · 256 subnets

close ×
#networkhost rangebroadcast
110.9.224.0/2810.9.224.1 – 10.9.224.1410.9.224.15
210.9.224.16/2810.9.224.17 – 10.9.224.3010.9.224.31
310.9.224.32/2810.9.224.33 – 10.9.224.4610.9.224.47
410.9.224.48/2810.9.224.49 – 10.9.224.6210.9.224.63
510.9.224.64/2810.9.224.65 – 10.9.224.7810.9.224.79
610.9.224.80/2810.9.224.81 – 10.9.224.9410.9.224.95
710.9.224.96/2810.9.224.97 – 10.9.224.11010.9.224.111
810.9.224.112/2810.9.224.113 – 10.9.224.12610.9.224.127
910.9.224.128/2810.9.224.129 – 10.9.224.14210.9.224.143
1010.9.224.144/2810.9.224.145 – 10.9.224.15810.9.224.159
1110.9.224.160/2810.9.224.161 – 10.9.224.17410.9.224.175
1210.9.224.176/2810.9.224.177 – 10.9.224.19010.9.224.191
1310.9.224.192/2810.9.224.193 – 10.9.224.20610.9.224.207
1410.9.224.208/2810.9.224.209 – 10.9.224.22210.9.224.223
1510.9.224.224/2810.9.224.225 – 10.9.224.23810.9.224.239
1610.9.224.240/2810.9.224.241 – 10.9.224.25410.9.224.255
1710.9.225.0/2810.9.225.1 – 10.9.225.1410.9.225.15
1810.9.225.16/2810.9.225.17 – 10.9.225.3010.9.225.31
1910.9.225.32/2810.9.225.33 – 10.9.225.4610.9.225.47
2010.9.225.48/2810.9.225.49 – 10.9.225.6210.9.225.63
2110.9.225.64/2810.9.225.65 – 10.9.225.7810.9.225.79
2210.9.225.80/2810.9.225.81 – 10.9.225.9410.9.225.95
2310.9.225.96/2810.9.225.97 – 10.9.225.11010.9.225.111
2410.9.225.112/2810.9.225.113 – 10.9.225.12610.9.225.127
2510.9.225.128/2810.9.225.129 – 10.9.225.14210.9.225.143
2610.9.225.144/2810.9.225.145 – 10.9.225.15810.9.225.159
2710.9.225.160/2810.9.225.161 – 10.9.225.17410.9.225.175
2810.9.225.176/2810.9.225.177 – 10.9.225.19010.9.225.191
2910.9.225.192/2810.9.225.193 – 10.9.225.20610.9.225.207
3010.9.225.208/2810.9.225.209 – 10.9.225.22210.9.225.223
3110.9.225.224/2810.9.225.225 – 10.9.225.23810.9.225.239
3210.9.225.240/2810.9.225.241 – 10.9.225.25410.9.225.255
3310.9.226.0/2810.9.226.1 – 10.9.226.1410.9.226.15
3410.9.226.16/2810.9.226.17 – 10.9.226.3010.9.226.31
3510.9.226.32/2810.9.226.33 – 10.9.226.4610.9.226.47
3610.9.226.48/2810.9.226.49 – 10.9.226.6210.9.226.63
3710.9.226.64/2810.9.226.65 – 10.9.226.7810.9.226.79
3810.9.226.80/2810.9.226.81 – 10.9.226.9410.9.226.95
3910.9.226.96/2810.9.226.97 – 10.9.226.11010.9.226.111
4010.9.226.112/2810.9.226.113 – 10.9.226.12610.9.226.127
4110.9.226.128/2810.9.226.129 – 10.9.226.14210.9.226.143
4210.9.226.144/2810.9.226.145 – 10.9.226.15810.9.226.159
4310.9.226.160/2810.9.226.161 – 10.9.226.17410.9.226.175
4410.9.226.176/2810.9.226.177 – 10.9.226.19010.9.226.191
4510.9.226.192/2810.9.226.193 – 10.9.226.20610.9.226.207
4610.9.226.208/2810.9.226.209 – 10.9.226.22210.9.226.223
4710.9.226.224/2810.9.226.225 – 10.9.226.23810.9.226.239
4810.9.226.240/2810.9.226.241 – 10.9.226.25410.9.226.255
4910.9.227.0/2810.9.227.1 – 10.9.227.1410.9.227.15
5010.9.227.16/2810.9.227.17 – 10.9.227.3010.9.227.31
5110.9.227.32/2810.9.227.33 – 10.9.227.4610.9.227.47
5210.9.227.48/2810.9.227.49 – 10.9.227.6210.9.227.63
5310.9.227.64/2810.9.227.65 – 10.9.227.7810.9.227.79
5410.9.227.80/2810.9.227.81 – 10.9.227.9410.9.227.95
5510.9.227.96/2810.9.227.97 – 10.9.227.11010.9.227.111
5610.9.227.112/2810.9.227.113 – 10.9.227.12610.9.227.127
5710.9.227.128/2810.9.227.129 – 10.9.227.14210.9.227.143
5810.9.227.144/2810.9.227.145 – 10.9.227.15810.9.227.159
5910.9.227.160/2810.9.227.161 – 10.9.227.17410.9.227.175
6010.9.227.176/2810.9.227.177 – 10.9.227.19010.9.227.191
6110.9.227.192/2810.9.227.193 – 10.9.227.20610.9.227.207
6210.9.227.208/2810.9.227.209 – 10.9.227.22210.9.227.223
6310.9.227.224/2810.9.227.225 – 10.9.227.23810.9.227.239
6410.9.227.240/2810.9.227.241 – 10.9.227.25410.9.227.255
6510.9.228.0/2810.9.228.1 – 10.9.228.1410.9.228.15
6610.9.228.16/2810.9.228.17 – 10.9.228.3010.9.228.31
6710.9.228.32/2810.9.228.33 – 10.9.228.4610.9.228.47
6810.9.228.48/2810.9.228.49 – 10.9.228.6210.9.228.63
6910.9.228.64/2810.9.228.65 – 10.9.228.7810.9.228.79
7010.9.228.80/2810.9.228.81 – 10.9.228.9410.9.228.95
7110.9.228.96/2810.9.228.97 – 10.9.228.11010.9.228.111
7210.9.228.112/2810.9.228.113 – 10.9.228.12610.9.228.127
7310.9.228.128/2810.9.228.129 – 10.9.228.14210.9.228.143
7410.9.228.144/2810.9.228.145 – 10.9.228.15810.9.228.159
7510.9.228.160/2810.9.228.161 – 10.9.228.17410.9.228.175
7610.9.228.176/2810.9.228.177 – 10.9.228.19010.9.228.191
7710.9.228.192/2810.9.228.193 – 10.9.228.20610.9.228.207
7810.9.228.208/2810.9.228.209 – 10.9.228.22210.9.228.223
7910.9.228.224/2810.9.228.225 – 10.9.228.23810.9.228.239
8010.9.228.240/2810.9.228.241 – 10.9.228.25410.9.228.255
8110.9.229.0/2810.9.229.1 – 10.9.229.1410.9.229.15
8210.9.229.16/2810.9.229.17 – 10.9.229.3010.9.229.31
8310.9.229.32/2810.9.229.33 – 10.9.229.4610.9.229.47
8410.9.229.48/2810.9.229.49 – 10.9.229.6210.9.229.63
8510.9.229.64/2810.9.229.65 – 10.9.229.7810.9.229.79
8610.9.229.80/2810.9.229.81 – 10.9.229.9410.9.229.95
8710.9.229.96/2810.9.229.97 – 10.9.229.11010.9.229.111
8810.9.229.112/2810.9.229.113 – 10.9.229.12610.9.229.127
8910.9.229.128/2810.9.229.129 – 10.9.229.14210.9.229.143
9010.9.229.144/2810.9.229.145 – 10.9.229.15810.9.229.159
9110.9.229.160/2810.9.229.161 – 10.9.229.17410.9.229.175
9210.9.229.176/2810.9.229.177 – 10.9.229.19010.9.229.191
9310.9.229.192/2810.9.229.193 – 10.9.229.20610.9.229.207
9410.9.229.208/2810.9.229.209 – 10.9.229.22210.9.229.223
9510.9.229.224/2810.9.229.225 – 10.9.229.23810.9.229.239
9610.9.229.240/2810.9.229.241 – 10.9.229.25410.9.229.255
9710.9.230.0/2810.9.230.1 – 10.9.230.1410.9.230.15
9810.9.230.16/2810.9.230.17 – 10.9.230.3010.9.230.31
9910.9.230.32/2810.9.230.33 – 10.9.230.4610.9.230.47
10010.9.230.48/2810.9.230.49 – 10.9.230.6210.9.230.63
10110.9.230.64/2810.9.230.65 – 10.9.230.7810.9.230.79
10210.9.230.80/2810.9.230.81 – 10.9.230.9410.9.230.95
10310.9.230.96/2810.9.230.97 – 10.9.230.11010.9.230.111
10410.9.230.112/2810.9.230.113 – 10.9.230.12610.9.230.127
10510.9.230.128/2810.9.230.129 – 10.9.230.14210.9.230.143
10610.9.230.144/2810.9.230.145 – 10.9.230.15810.9.230.159
10710.9.230.160/2810.9.230.161 – 10.9.230.17410.9.230.175
10810.9.230.176/2810.9.230.177 – 10.9.230.19010.9.230.191
10910.9.230.192/2810.9.230.193 – 10.9.230.20610.9.230.207
11010.9.230.208/2810.9.230.209 – 10.9.230.22210.9.230.223
11110.9.230.224/2810.9.230.225 – 10.9.230.23810.9.230.239
11210.9.230.240/2810.9.230.241 – 10.9.230.25410.9.230.255
11310.9.231.0/2810.9.231.1 – 10.9.231.1410.9.231.15
11410.9.231.16/2810.9.231.17 – 10.9.231.3010.9.231.31
11510.9.231.32/2810.9.231.33 – 10.9.231.4610.9.231.47
11610.9.231.48/2810.9.231.49 – 10.9.231.6210.9.231.63
11710.9.231.64/2810.9.231.65 – 10.9.231.7810.9.231.79
11810.9.231.80/2810.9.231.81 – 10.9.231.9410.9.231.95
11910.9.231.96/2810.9.231.97 – 10.9.231.11010.9.231.111
12010.9.231.112/2810.9.231.113 – 10.9.231.12610.9.231.127
12110.9.231.128/2810.9.231.129 – 10.9.231.14210.9.231.143
12210.9.231.144/2810.9.231.145 – 10.9.231.15810.9.231.159
12310.9.231.160/2810.9.231.161 – 10.9.231.17410.9.231.175
12410.9.231.176/2810.9.231.177 – 10.9.231.19010.9.231.191
12510.9.231.192/2810.9.231.193 – 10.9.231.20610.9.231.207
12610.9.231.208/2810.9.231.209 – 10.9.231.22210.9.231.223
12710.9.231.224/2810.9.231.225 – 10.9.231.23810.9.231.239
12810.9.231.240/2810.9.231.241 – 10.9.231.25410.9.231.255
12910.9.232.0/2810.9.232.1 – 10.9.232.1410.9.232.15
13010.9.232.16/2810.9.232.17 – 10.9.232.3010.9.232.31
13110.9.232.32/2810.9.232.33 – 10.9.232.4610.9.232.47
13210.9.232.48/2810.9.232.49 – 10.9.232.6210.9.232.63
13310.9.232.64/2810.9.232.65 – 10.9.232.7810.9.232.79
13410.9.232.80/2810.9.232.81 – 10.9.232.9410.9.232.95
13510.9.232.96/2810.9.232.97 – 10.9.232.11010.9.232.111
13610.9.232.112/2810.9.232.113 – 10.9.232.12610.9.232.127
13710.9.232.128/2810.9.232.129 – 10.9.232.14210.9.232.143
13810.9.232.144/2810.9.232.145 – 10.9.232.15810.9.232.159
13910.9.232.160/2810.9.232.161 – 10.9.232.17410.9.232.175
14010.9.232.176/2810.9.232.177 – 10.9.232.19010.9.232.191
14110.9.232.192/2810.9.232.193 – 10.9.232.20610.9.232.207
14210.9.232.208/2810.9.232.209 – 10.9.232.22210.9.232.223
14310.9.232.224/2810.9.232.225 – 10.9.232.23810.9.232.239
14410.9.232.240/2810.9.232.241 – 10.9.232.25410.9.232.255
14510.9.233.0/2810.9.233.1 – 10.9.233.1410.9.233.15
14610.9.233.16/2810.9.233.17 – 10.9.233.3010.9.233.31
14710.9.233.32/2810.9.233.33 – 10.9.233.4610.9.233.47
14810.9.233.48/2810.9.233.49 – 10.9.233.6210.9.233.63
14910.9.233.64/2810.9.233.65 – 10.9.233.7810.9.233.79
15010.9.233.80/2810.9.233.81 – 10.9.233.9410.9.233.95
15110.9.233.96/2810.9.233.97 – 10.9.233.11010.9.233.111
15210.9.233.112/2810.9.233.113 – 10.9.233.12610.9.233.127
15310.9.233.128/2810.9.233.129 – 10.9.233.14210.9.233.143
15410.9.233.144/2810.9.233.145 – 10.9.233.15810.9.233.159
15510.9.233.160/2810.9.233.161 – 10.9.233.17410.9.233.175
15610.9.233.176/2810.9.233.177 – 10.9.233.19010.9.233.191
15710.9.233.192/2810.9.233.193 – 10.9.233.20610.9.233.207
15810.9.233.208/2810.9.233.209 – 10.9.233.22210.9.233.223
15910.9.233.224/2810.9.233.225 – 10.9.233.23810.9.233.239
16010.9.233.240/2810.9.233.241 – 10.9.233.25410.9.233.255
16110.9.234.0/2810.9.234.1 – 10.9.234.1410.9.234.15
16210.9.234.16/2810.9.234.17 – 10.9.234.3010.9.234.31
16310.9.234.32/2810.9.234.33 – 10.9.234.4610.9.234.47
16410.9.234.48/2810.9.234.49 – 10.9.234.6210.9.234.63
16510.9.234.64/2810.9.234.65 – 10.9.234.7810.9.234.79
16610.9.234.80/2810.9.234.81 – 10.9.234.9410.9.234.95
16710.9.234.96/2810.9.234.97 – 10.9.234.11010.9.234.111
16810.9.234.112/2810.9.234.113 – 10.9.234.12610.9.234.127
16910.9.234.128/2810.9.234.129 – 10.9.234.14210.9.234.143
17010.9.234.144/2810.9.234.145 – 10.9.234.15810.9.234.159
17110.9.234.160/2810.9.234.161 – 10.9.234.17410.9.234.175
17210.9.234.176/2810.9.234.177 – 10.9.234.19010.9.234.191
17310.9.234.192/2810.9.234.193 – 10.9.234.20610.9.234.207
17410.9.234.208/2810.9.234.209 – 10.9.234.22210.9.234.223
17510.9.234.224/2810.9.234.225 – 10.9.234.23810.9.234.239
17610.9.234.240/2810.9.234.241 – 10.9.234.25410.9.234.255
17710.9.235.0/2810.9.235.1 – 10.9.235.1410.9.235.15
17810.9.235.16/2810.9.235.17 – 10.9.235.3010.9.235.31
17910.9.235.32/2810.9.235.33 – 10.9.235.4610.9.235.47
18010.9.235.48/2810.9.235.49 – 10.9.235.6210.9.235.63
18110.9.235.64/2810.9.235.65 – 10.9.235.7810.9.235.79
18210.9.235.80/2810.9.235.81 – 10.9.235.9410.9.235.95
18310.9.235.96/2810.9.235.97 – 10.9.235.11010.9.235.111
18410.9.235.112/2810.9.235.113 – 10.9.235.12610.9.235.127
18510.9.235.128/2810.9.235.129 – 10.9.235.14210.9.235.143
18610.9.235.144/2810.9.235.145 – 10.9.235.15810.9.235.159
18710.9.235.160/2810.9.235.161 – 10.9.235.17410.9.235.175
18810.9.235.176/2810.9.235.177 – 10.9.235.19010.9.235.191
18910.9.235.192/2810.9.235.193 – 10.9.235.20610.9.235.207
19010.9.235.208/2810.9.235.209 – 10.9.235.22210.9.235.223
19110.9.235.224/2810.9.235.225 – 10.9.235.23810.9.235.239
19210.9.235.240/2810.9.235.241 – 10.9.235.25410.9.235.255
19310.9.236.0/2810.9.236.1 – 10.9.236.1410.9.236.15
19410.9.236.16/2810.9.236.17 – 10.9.236.3010.9.236.31
19510.9.236.32/2810.9.236.33 – 10.9.236.4610.9.236.47
19610.9.236.48/2810.9.236.49 – 10.9.236.6210.9.236.63
19710.9.236.64/2810.9.236.65 – 10.9.236.7810.9.236.79
19810.9.236.80/2810.9.236.81 – 10.9.236.9410.9.236.95
19910.9.236.96/2810.9.236.97 – 10.9.236.11010.9.236.111
20010.9.236.112/2810.9.236.113 – 10.9.236.12610.9.236.127
20110.9.236.128/2810.9.236.129 – 10.9.236.14210.9.236.143
20210.9.236.144/2810.9.236.145 – 10.9.236.15810.9.236.159
20310.9.236.160/2810.9.236.161 – 10.9.236.17410.9.236.175
20410.9.236.176/2810.9.236.177 – 10.9.236.19010.9.236.191
20510.9.236.192/2810.9.236.193 – 10.9.236.20610.9.236.207
20610.9.236.208/2810.9.236.209 – 10.9.236.22210.9.236.223
20710.9.236.224/2810.9.236.225 – 10.9.236.23810.9.236.239
20810.9.236.240/2810.9.236.241 – 10.9.236.25410.9.236.255
20910.9.237.0/2810.9.237.1 – 10.9.237.1410.9.237.15
21010.9.237.16/2810.9.237.17 – 10.9.237.3010.9.237.31
21110.9.237.32/2810.9.237.33 – 10.9.237.4610.9.237.47
21210.9.237.48/2810.9.237.49 – 10.9.237.6210.9.237.63
21310.9.237.64/2810.9.237.65 – 10.9.237.7810.9.237.79
21410.9.237.80/2810.9.237.81 – 10.9.237.9410.9.237.95
21510.9.237.96/2810.9.237.97 – 10.9.237.11010.9.237.111
21610.9.237.112/2810.9.237.113 – 10.9.237.12610.9.237.127
21710.9.237.128/2810.9.237.129 – 10.9.237.14210.9.237.143
21810.9.237.144/2810.9.237.145 – 10.9.237.15810.9.237.159
21910.9.237.160/2810.9.237.161 – 10.9.237.17410.9.237.175
22010.9.237.176/2810.9.237.177 – 10.9.237.19010.9.237.191
22110.9.237.192/2810.9.237.193 – 10.9.237.20610.9.237.207
22210.9.237.208/2810.9.237.209 – 10.9.237.22210.9.237.223
22310.9.237.224/2810.9.237.225 – 10.9.237.23810.9.237.239
22410.9.237.240/2810.9.237.241 – 10.9.237.25410.9.237.255
22510.9.238.0/2810.9.238.1 – 10.9.238.1410.9.238.15
22610.9.238.16/2810.9.238.17 – 10.9.238.3010.9.238.31
22710.9.238.32/2810.9.238.33 – 10.9.238.4610.9.238.47
22810.9.238.48/2810.9.238.49 – 10.9.238.6210.9.238.63
22910.9.238.64/2810.9.238.65 – 10.9.238.7810.9.238.79
23010.9.238.80/2810.9.238.81 – 10.9.238.9410.9.238.95
23110.9.238.96/2810.9.238.97 – 10.9.238.11010.9.238.111
23210.9.238.112/2810.9.238.113 – 10.9.238.12610.9.238.127
23310.9.238.128/2810.9.238.129 – 10.9.238.14210.9.238.143
23410.9.238.144/2810.9.238.145 – 10.9.238.15810.9.238.159
23510.9.238.160/2810.9.238.161 – 10.9.238.17410.9.238.175
23610.9.238.176/2810.9.238.177 – 10.9.238.19010.9.238.191
23710.9.238.192/2810.9.238.193 – 10.9.238.20610.9.238.207
23810.9.238.208/2810.9.238.209 – 10.9.238.22210.9.238.223
23910.9.238.224/2810.9.238.225 – 10.9.238.23810.9.238.239
24010.9.238.240/2810.9.238.241 – 10.9.238.25410.9.238.255
24110.9.239.0/2810.9.239.1 – 10.9.239.1410.9.239.15
24210.9.239.16/2810.9.239.17 – 10.9.239.3010.9.239.31
24310.9.239.32/2810.9.239.33 – 10.9.239.4610.9.239.47
24410.9.239.48/2810.9.239.49 – 10.9.239.6210.9.239.63
24510.9.239.64/2810.9.239.65 – 10.9.239.7810.9.239.79
24610.9.239.80/2810.9.239.81 – 10.9.239.9410.9.239.95
24710.9.239.96/2810.9.239.97 – 10.9.239.11010.9.239.111
24810.9.239.112/2810.9.239.113 – 10.9.239.12610.9.239.127
24910.9.239.128/2810.9.239.129 – 10.9.239.14210.9.239.143
25010.9.239.144/2810.9.239.145 – 10.9.239.15810.9.239.159
25110.9.239.160/2810.9.239.161 – 10.9.239.17410.9.239.175
25210.9.239.176/2810.9.239.177 – 10.9.239.19010.9.239.191
25310.9.239.192/2810.9.239.193 – 10.9.239.20610.9.239.207
25410.9.239.208/2810.9.239.209 – 10.9.239.22210.9.239.223
25510.9.239.224/2810.9.239.225 – 10.9.239.23810.9.239.239
25610.9.239.240/2810.9.239.241 – 10.9.239.25410.9.239.255
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /20
/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-
/19255.255.224.08,1928,190-
/20255.255.240.04,0964,0941
/21255.255.248.02,0482,0462 split →
/22255.255.252.01,0241,0224 split →
/23255.255.254.05125108 split →
/24255.255.255.025625416 split →
/25255.255.255.12812812632 split →
/26255.255.255.192646264 split →
/27255.255.255.2243230128 split →
/28255.255.255.2401614256 split →
/29255.255.255.24886512 split →
/30255.255.255.252421,024 split →
/31255.255.255.254222,048 split →
/32255.255.255.255114,096 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 →