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)10.14.240.0/20
network10.14.240.0/20
broadcast10.14.255.255
first host10.14.240.1
last host10.14.255.254
subnet mask255.255.240.0
wildcard0.0.15.255
addresses4,096
usable hosts4,094
classA
ipcalc 10.14.240.0/20
address00001010.00001110.11110000.00000000
subnet mask11111111.11111111.11110000.00000000
network00001010.00001110.11110000.00000000
broadcast00001010.00001110.11111111.11111111
green = network part, grey = host part
hex0x0a0ef000
decimal168751104
reverse dns0.240.14.10.in-addr.arpa
ipv4-mapped::ffff:a0e:f000

/20 split into /28 · 256 subnets

close ×
#networkhost rangebroadcast
110.14.240.0/2810.14.240.1 – 10.14.240.1410.14.240.15
210.14.240.16/2810.14.240.17 – 10.14.240.3010.14.240.31
310.14.240.32/2810.14.240.33 – 10.14.240.4610.14.240.47
410.14.240.48/2810.14.240.49 – 10.14.240.6210.14.240.63
510.14.240.64/2810.14.240.65 – 10.14.240.7810.14.240.79
610.14.240.80/2810.14.240.81 – 10.14.240.9410.14.240.95
710.14.240.96/2810.14.240.97 – 10.14.240.11010.14.240.111
810.14.240.112/2810.14.240.113 – 10.14.240.12610.14.240.127
910.14.240.128/2810.14.240.129 – 10.14.240.14210.14.240.143
1010.14.240.144/2810.14.240.145 – 10.14.240.15810.14.240.159
1110.14.240.160/2810.14.240.161 – 10.14.240.17410.14.240.175
1210.14.240.176/2810.14.240.177 – 10.14.240.19010.14.240.191
1310.14.240.192/2810.14.240.193 – 10.14.240.20610.14.240.207
1410.14.240.208/2810.14.240.209 – 10.14.240.22210.14.240.223
1510.14.240.224/2810.14.240.225 – 10.14.240.23810.14.240.239
1610.14.240.240/2810.14.240.241 – 10.14.240.25410.14.240.255
1710.14.241.0/2810.14.241.1 – 10.14.241.1410.14.241.15
1810.14.241.16/2810.14.241.17 – 10.14.241.3010.14.241.31
1910.14.241.32/2810.14.241.33 – 10.14.241.4610.14.241.47
2010.14.241.48/2810.14.241.49 – 10.14.241.6210.14.241.63
2110.14.241.64/2810.14.241.65 – 10.14.241.7810.14.241.79
2210.14.241.80/2810.14.241.81 – 10.14.241.9410.14.241.95
2310.14.241.96/2810.14.241.97 – 10.14.241.11010.14.241.111
2410.14.241.112/2810.14.241.113 – 10.14.241.12610.14.241.127
2510.14.241.128/2810.14.241.129 – 10.14.241.14210.14.241.143
2610.14.241.144/2810.14.241.145 – 10.14.241.15810.14.241.159
2710.14.241.160/2810.14.241.161 – 10.14.241.17410.14.241.175
2810.14.241.176/2810.14.241.177 – 10.14.241.19010.14.241.191
2910.14.241.192/2810.14.241.193 – 10.14.241.20610.14.241.207
3010.14.241.208/2810.14.241.209 – 10.14.241.22210.14.241.223
3110.14.241.224/2810.14.241.225 – 10.14.241.23810.14.241.239
3210.14.241.240/2810.14.241.241 – 10.14.241.25410.14.241.255
3310.14.242.0/2810.14.242.1 – 10.14.242.1410.14.242.15
3410.14.242.16/2810.14.242.17 – 10.14.242.3010.14.242.31
3510.14.242.32/2810.14.242.33 – 10.14.242.4610.14.242.47
3610.14.242.48/2810.14.242.49 – 10.14.242.6210.14.242.63
3710.14.242.64/2810.14.242.65 – 10.14.242.7810.14.242.79
3810.14.242.80/2810.14.242.81 – 10.14.242.9410.14.242.95
3910.14.242.96/2810.14.242.97 – 10.14.242.11010.14.242.111
4010.14.242.112/2810.14.242.113 – 10.14.242.12610.14.242.127
4110.14.242.128/2810.14.242.129 – 10.14.242.14210.14.242.143
4210.14.242.144/2810.14.242.145 – 10.14.242.15810.14.242.159
4310.14.242.160/2810.14.242.161 – 10.14.242.17410.14.242.175
4410.14.242.176/2810.14.242.177 – 10.14.242.19010.14.242.191
4510.14.242.192/2810.14.242.193 – 10.14.242.20610.14.242.207
4610.14.242.208/2810.14.242.209 – 10.14.242.22210.14.242.223
4710.14.242.224/2810.14.242.225 – 10.14.242.23810.14.242.239
4810.14.242.240/2810.14.242.241 – 10.14.242.25410.14.242.255
4910.14.243.0/2810.14.243.1 – 10.14.243.1410.14.243.15
5010.14.243.16/2810.14.243.17 – 10.14.243.3010.14.243.31
5110.14.243.32/2810.14.243.33 – 10.14.243.4610.14.243.47
5210.14.243.48/2810.14.243.49 – 10.14.243.6210.14.243.63
5310.14.243.64/2810.14.243.65 – 10.14.243.7810.14.243.79
5410.14.243.80/2810.14.243.81 – 10.14.243.9410.14.243.95
5510.14.243.96/2810.14.243.97 – 10.14.243.11010.14.243.111
5610.14.243.112/2810.14.243.113 – 10.14.243.12610.14.243.127
5710.14.243.128/2810.14.243.129 – 10.14.243.14210.14.243.143
5810.14.243.144/2810.14.243.145 – 10.14.243.15810.14.243.159
5910.14.243.160/2810.14.243.161 – 10.14.243.17410.14.243.175
6010.14.243.176/2810.14.243.177 – 10.14.243.19010.14.243.191
6110.14.243.192/2810.14.243.193 – 10.14.243.20610.14.243.207
6210.14.243.208/2810.14.243.209 – 10.14.243.22210.14.243.223
6310.14.243.224/2810.14.243.225 – 10.14.243.23810.14.243.239
6410.14.243.240/2810.14.243.241 – 10.14.243.25410.14.243.255
6510.14.244.0/2810.14.244.1 – 10.14.244.1410.14.244.15
6610.14.244.16/2810.14.244.17 – 10.14.244.3010.14.244.31
6710.14.244.32/2810.14.244.33 – 10.14.244.4610.14.244.47
6810.14.244.48/2810.14.244.49 – 10.14.244.6210.14.244.63
6910.14.244.64/2810.14.244.65 – 10.14.244.7810.14.244.79
7010.14.244.80/2810.14.244.81 – 10.14.244.9410.14.244.95
7110.14.244.96/2810.14.244.97 – 10.14.244.11010.14.244.111
7210.14.244.112/2810.14.244.113 – 10.14.244.12610.14.244.127
7310.14.244.128/2810.14.244.129 – 10.14.244.14210.14.244.143
7410.14.244.144/2810.14.244.145 – 10.14.244.15810.14.244.159
7510.14.244.160/2810.14.244.161 – 10.14.244.17410.14.244.175
7610.14.244.176/2810.14.244.177 – 10.14.244.19010.14.244.191
7710.14.244.192/2810.14.244.193 – 10.14.244.20610.14.244.207
7810.14.244.208/2810.14.244.209 – 10.14.244.22210.14.244.223
7910.14.244.224/2810.14.244.225 – 10.14.244.23810.14.244.239
8010.14.244.240/2810.14.244.241 – 10.14.244.25410.14.244.255
8110.14.245.0/2810.14.245.1 – 10.14.245.1410.14.245.15
8210.14.245.16/2810.14.245.17 – 10.14.245.3010.14.245.31
8310.14.245.32/2810.14.245.33 – 10.14.245.4610.14.245.47
8410.14.245.48/2810.14.245.49 – 10.14.245.6210.14.245.63
8510.14.245.64/2810.14.245.65 – 10.14.245.7810.14.245.79
8610.14.245.80/2810.14.245.81 – 10.14.245.9410.14.245.95
8710.14.245.96/2810.14.245.97 – 10.14.245.11010.14.245.111
8810.14.245.112/2810.14.245.113 – 10.14.245.12610.14.245.127
8910.14.245.128/2810.14.245.129 – 10.14.245.14210.14.245.143
9010.14.245.144/2810.14.245.145 – 10.14.245.15810.14.245.159
9110.14.245.160/2810.14.245.161 – 10.14.245.17410.14.245.175
9210.14.245.176/2810.14.245.177 – 10.14.245.19010.14.245.191
9310.14.245.192/2810.14.245.193 – 10.14.245.20610.14.245.207
9410.14.245.208/2810.14.245.209 – 10.14.245.22210.14.245.223
9510.14.245.224/2810.14.245.225 – 10.14.245.23810.14.245.239
9610.14.245.240/2810.14.245.241 – 10.14.245.25410.14.245.255
9710.14.246.0/2810.14.246.1 – 10.14.246.1410.14.246.15
9810.14.246.16/2810.14.246.17 – 10.14.246.3010.14.246.31
9910.14.246.32/2810.14.246.33 – 10.14.246.4610.14.246.47
10010.14.246.48/2810.14.246.49 – 10.14.246.6210.14.246.63
10110.14.246.64/2810.14.246.65 – 10.14.246.7810.14.246.79
10210.14.246.80/2810.14.246.81 – 10.14.246.9410.14.246.95
10310.14.246.96/2810.14.246.97 – 10.14.246.11010.14.246.111
10410.14.246.112/2810.14.246.113 – 10.14.246.12610.14.246.127
10510.14.246.128/2810.14.246.129 – 10.14.246.14210.14.246.143
10610.14.246.144/2810.14.246.145 – 10.14.246.15810.14.246.159
10710.14.246.160/2810.14.246.161 – 10.14.246.17410.14.246.175
10810.14.246.176/2810.14.246.177 – 10.14.246.19010.14.246.191
10910.14.246.192/2810.14.246.193 – 10.14.246.20610.14.246.207
11010.14.246.208/2810.14.246.209 – 10.14.246.22210.14.246.223
11110.14.246.224/2810.14.246.225 – 10.14.246.23810.14.246.239
11210.14.246.240/2810.14.246.241 – 10.14.246.25410.14.246.255
11310.14.247.0/2810.14.247.1 – 10.14.247.1410.14.247.15
11410.14.247.16/2810.14.247.17 – 10.14.247.3010.14.247.31
11510.14.247.32/2810.14.247.33 – 10.14.247.4610.14.247.47
11610.14.247.48/2810.14.247.49 – 10.14.247.6210.14.247.63
11710.14.247.64/2810.14.247.65 – 10.14.247.7810.14.247.79
11810.14.247.80/2810.14.247.81 – 10.14.247.9410.14.247.95
11910.14.247.96/2810.14.247.97 – 10.14.247.11010.14.247.111
12010.14.247.112/2810.14.247.113 – 10.14.247.12610.14.247.127
12110.14.247.128/2810.14.247.129 – 10.14.247.14210.14.247.143
12210.14.247.144/2810.14.247.145 – 10.14.247.15810.14.247.159
12310.14.247.160/2810.14.247.161 – 10.14.247.17410.14.247.175
12410.14.247.176/2810.14.247.177 – 10.14.247.19010.14.247.191
12510.14.247.192/2810.14.247.193 – 10.14.247.20610.14.247.207
12610.14.247.208/2810.14.247.209 – 10.14.247.22210.14.247.223
12710.14.247.224/2810.14.247.225 – 10.14.247.23810.14.247.239
12810.14.247.240/2810.14.247.241 – 10.14.247.25410.14.247.255
12910.14.248.0/2810.14.248.1 – 10.14.248.1410.14.248.15
13010.14.248.16/2810.14.248.17 – 10.14.248.3010.14.248.31
13110.14.248.32/2810.14.248.33 – 10.14.248.4610.14.248.47
13210.14.248.48/2810.14.248.49 – 10.14.248.6210.14.248.63
13310.14.248.64/2810.14.248.65 – 10.14.248.7810.14.248.79
13410.14.248.80/2810.14.248.81 – 10.14.248.9410.14.248.95
13510.14.248.96/2810.14.248.97 – 10.14.248.11010.14.248.111
13610.14.248.112/2810.14.248.113 – 10.14.248.12610.14.248.127
13710.14.248.128/2810.14.248.129 – 10.14.248.14210.14.248.143
13810.14.248.144/2810.14.248.145 – 10.14.248.15810.14.248.159
13910.14.248.160/2810.14.248.161 – 10.14.248.17410.14.248.175
14010.14.248.176/2810.14.248.177 – 10.14.248.19010.14.248.191
14110.14.248.192/2810.14.248.193 – 10.14.248.20610.14.248.207
14210.14.248.208/2810.14.248.209 – 10.14.248.22210.14.248.223
14310.14.248.224/2810.14.248.225 – 10.14.248.23810.14.248.239
14410.14.248.240/2810.14.248.241 – 10.14.248.25410.14.248.255
14510.14.249.0/2810.14.249.1 – 10.14.249.1410.14.249.15
14610.14.249.16/2810.14.249.17 – 10.14.249.3010.14.249.31
14710.14.249.32/2810.14.249.33 – 10.14.249.4610.14.249.47
14810.14.249.48/2810.14.249.49 – 10.14.249.6210.14.249.63
14910.14.249.64/2810.14.249.65 – 10.14.249.7810.14.249.79
15010.14.249.80/2810.14.249.81 – 10.14.249.9410.14.249.95
15110.14.249.96/2810.14.249.97 – 10.14.249.11010.14.249.111
15210.14.249.112/2810.14.249.113 – 10.14.249.12610.14.249.127
15310.14.249.128/2810.14.249.129 – 10.14.249.14210.14.249.143
15410.14.249.144/2810.14.249.145 – 10.14.249.15810.14.249.159
15510.14.249.160/2810.14.249.161 – 10.14.249.17410.14.249.175
15610.14.249.176/2810.14.249.177 – 10.14.249.19010.14.249.191
15710.14.249.192/2810.14.249.193 – 10.14.249.20610.14.249.207
15810.14.249.208/2810.14.249.209 – 10.14.249.22210.14.249.223
15910.14.249.224/2810.14.249.225 – 10.14.249.23810.14.249.239
16010.14.249.240/2810.14.249.241 – 10.14.249.25410.14.249.255
16110.14.250.0/2810.14.250.1 – 10.14.250.1410.14.250.15
16210.14.250.16/2810.14.250.17 – 10.14.250.3010.14.250.31
16310.14.250.32/2810.14.250.33 – 10.14.250.4610.14.250.47
16410.14.250.48/2810.14.250.49 – 10.14.250.6210.14.250.63
16510.14.250.64/2810.14.250.65 – 10.14.250.7810.14.250.79
16610.14.250.80/2810.14.250.81 – 10.14.250.9410.14.250.95
16710.14.250.96/2810.14.250.97 – 10.14.250.11010.14.250.111
16810.14.250.112/2810.14.250.113 – 10.14.250.12610.14.250.127
16910.14.250.128/2810.14.250.129 – 10.14.250.14210.14.250.143
17010.14.250.144/2810.14.250.145 – 10.14.250.15810.14.250.159
17110.14.250.160/2810.14.250.161 – 10.14.250.17410.14.250.175
17210.14.250.176/2810.14.250.177 – 10.14.250.19010.14.250.191
17310.14.250.192/2810.14.250.193 – 10.14.250.20610.14.250.207
17410.14.250.208/2810.14.250.209 – 10.14.250.22210.14.250.223
17510.14.250.224/2810.14.250.225 – 10.14.250.23810.14.250.239
17610.14.250.240/2810.14.250.241 – 10.14.250.25410.14.250.255
17710.14.251.0/2810.14.251.1 – 10.14.251.1410.14.251.15
17810.14.251.16/2810.14.251.17 – 10.14.251.3010.14.251.31
17910.14.251.32/2810.14.251.33 – 10.14.251.4610.14.251.47
18010.14.251.48/2810.14.251.49 – 10.14.251.6210.14.251.63
18110.14.251.64/2810.14.251.65 – 10.14.251.7810.14.251.79
18210.14.251.80/2810.14.251.81 – 10.14.251.9410.14.251.95
18310.14.251.96/2810.14.251.97 – 10.14.251.11010.14.251.111
18410.14.251.112/2810.14.251.113 – 10.14.251.12610.14.251.127
18510.14.251.128/2810.14.251.129 – 10.14.251.14210.14.251.143
18610.14.251.144/2810.14.251.145 – 10.14.251.15810.14.251.159
18710.14.251.160/2810.14.251.161 – 10.14.251.17410.14.251.175
18810.14.251.176/2810.14.251.177 – 10.14.251.19010.14.251.191
18910.14.251.192/2810.14.251.193 – 10.14.251.20610.14.251.207
19010.14.251.208/2810.14.251.209 – 10.14.251.22210.14.251.223
19110.14.251.224/2810.14.251.225 – 10.14.251.23810.14.251.239
19210.14.251.240/2810.14.251.241 – 10.14.251.25410.14.251.255
19310.14.252.0/2810.14.252.1 – 10.14.252.1410.14.252.15
19410.14.252.16/2810.14.252.17 – 10.14.252.3010.14.252.31
19510.14.252.32/2810.14.252.33 – 10.14.252.4610.14.252.47
19610.14.252.48/2810.14.252.49 – 10.14.252.6210.14.252.63
19710.14.252.64/2810.14.252.65 – 10.14.252.7810.14.252.79
19810.14.252.80/2810.14.252.81 – 10.14.252.9410.14.252.95
19910.14.252.96/2810.14.252.97 – 10.14.252.11010.14.252.111
20010.14.252.112/2810.14.252.113 – 10.14.252.12610.14.252.127
20110.14.252.128/2810.14.252.129 – 10.14.252.14210.14.252.143
20210.14.252.144/2810.14.252.145 – 10.14.252.15810.14.252.159
20310.14.252.160/2810.14.252.161 – 10.14.252.17410.14.252.175
20410.14.252.176/2810.14.252.177 – 10.14.252.19010.14.252.191
20510.14.252.192/2810.14.252.193 – 10.14.252.20610.14.252.207
20610.14.252.208/2810.14.252.209 – 10.14.252.22210.14.252.223
20710.14.252.224/2810.14.252.225 – 10.14.252.23810.14.252.239
20810.14.252.240/2810.14.252.241 – 10.14.252.25410.14.252.255
20910.14.253.0/2810.14.253.1 – 10.14.253.1410.14.253.15
21010.14.253.16/2810.14.253.17 – 10.14.253.3010.14.253.31
21110.14.253.32/2810.14.253.33 – 10.14.253.4610.14.253.47
21210.14.253.48/2810.14.253.49 – 10.14.253.6210.14.253.63
21310.14.253.64/2810.14.253.65 – 10.14.253.7810.14.253.79
21410.14.253.80/2810.14.253.81 – 10.14.253.9410.14.253.95
21510.14.253.96/2810.14.253.97 – 10.14.253.11010.14.253.111
21610.14.253.112/2810.14.253.113 – 10.14.253.12610.14.253.127
21710.14.253.128/2810.14.253.129 – 10.14.253.14210.14.253.143
21810.14.253.144/2810.14.253.145 – 10.14.253.15810.14.253.159
21910.14.253.160/2810.14.253.161 – 10.14.253.17410.14.253.175
22010.14.253.176/2810.14.253.177 – 10.14.253.19010.14.253.191
22110.14.253.192/2810.14.253.193 – 10.14.253.20610.14.253.207
22210.14.253.208/2810.14.253.209 – 10.14.253.22210.14.253.223
22310.14.253.224/2810.14.253.225 – 10.14.253.23810.14.253.239
22410.14.253.240/2810.14.253.241 – 10.14.253.25410.14.253.255
22510.14.254.0/2810.14.254.1 – 10.14.254.1410.14.254.15
22610.14.254.16/2810.14.254.17 – 10.14.254.3010.14.254.31
22710.14.254.32/2810.14.254.33 – 10.14.254.4610.14.254.47
22810.14.254.48/2810.14.254.49 – 10.14.254.6210.14.254.63
22910.14.254.64/2810.14.254.65 – 10.14.254.7810.14.254.79
23010.14.254.80/2810.14.254.81 – 10.14.254.9410.14.254.95
23110.14.254.96/2810.14.254.97 – 10.14.254.11010.14.254.111
23210.14.254.112/2810.14.254.113 – 10.14.254.12610.14.254.127
23310.14.254.128/2810.14.254.129 – 10.14.254.14210.14.254.143
23410.14.254.144/2810.14.254.145 – 10.14.254.15810.14.254.159
23510.14.254.160/2810.14.254.161 – 10.14.254.17410.14.254.175
23610.14.254.176/2810.14.254.177 – 10.14.254.19010.14.254.191
23710.14.254.192/2810.14.254.193 – 10.14.254.20610.14.254.207
23810.14.254.208/2810.14.254.209 – 10.14.254.22210.14.254.223
23910.14.254.224/2810.14.254.225 – 10.14.254.23810.14.254.239
24010.14.254.240/2810.14.254.241 – 10.14.254.25410.14.254.255
24110.14.255.0/2810.14.255.1 – 10.14.255.1410.14.255.15
24210.14.255.16/2810.14.255.17 – 10.14.255.3010.14.255.31
24310.14.255.32/2810.14.255.33 – 10.14.255.4610.14.255.47
24410.14.255.48/2810.14.255.49 – 10.14.255.6210.14.255.63
24510.14.255.64/2810.14.255.65 – 10.14.255.7810.14.255.79
24610.14.255.80/2810.14.255.81 – 10.14.255.9410.14.255.95
24710.14.255.96/2810.14.255.97 – 10.14.255.11010.14.255.111
24810.14.255.112/2810.14.255.113 – 10.14.255.12610.14.255.127
24910.14.255.128/2810.14.255.129 – 10.14.255.14210.14.255.143
25010.14.255.144/2810.14.255.145 – 10.14.255.15810.14.255.159
25110.14.255.160/2810.14.255.161 – 10.14.255.17410.14.255.175
25210.14.255.176/2810.14.255.177 – 10.14.255.19010.14.255.191
25310.14.255.192/2810.14.255.193 – 10.14.255.20610.14.255.207
25410.14.255.208/2810.14.255.209 – 10.14.255.22210.14.255.223
25510.14.255.224/2810.14.255.225 – 10.14.255.23810.14.255.239
25610.14.255.240/2810.14.255.241 – 10.14.255.25410.14.255.255
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 →