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)10.3.0.0/18
network10.3.0.0/18
broadcast10.3.63.255
first host10.3.0.1
last host10.3.63.254
subnet mask255.255.192.0
wildcard0.0.63.255
addresses16,384
usable hosts16,382
classA
ipcalc 10.3.0.0/18
address00001010.00000011.00000000.00000000
subnet mask11111111.11111111.11000000.00000000
network00001010.00000011.00000000.00000000
broadcast00001010.00000011.00111111.11111111
green = network part, grey = host part
hex0x0a030000
decimal167968768
reverse dns0.0.3.10.in-addr.arpa
ipv4-mapped::ffff:a03:0

/18 split into /28 · 1,024 subnets

close ×
#networkhost rangebroadcast
110.3.0.0/2810.3.0.1 – 10.3.0.1410.3.0.15
210.3.0.16/2810.3.0.17 – 10.3.0.3010.3.0.31
310.3.0.32/2810.3.0.33 – 10.3.0.4610.3.0.47
410.3.0.48/2810.3.0.49 – 10.3.0.6210.3.0.63
510.3.0.64/2810.3.0.65 – 10.3.0.7810.3.0.79
610.3.0.80/2810.3.0.81 – 10.3.0.9410.3.0.95
710.3.0.96/2810.3.0.97 – 10.3.0.11010.3.0.111
810.3.0.112/2810.3.0.113 – 10.3.0.12610.3.0.127
910.3.0.128/2810.3.0.129 – 10.3.0.14210.3.0.143
1010.3.0.144/2810.3.0.145 – 10.3.0.15810.3.0.159
1110.3.0.160/2810.3.0.161 – 10.3.0.17410.3.0.175
1210.3.0.176/2810.3.0.177 – 10.3.0.19010.3.0.191
1310.3.0.192/2810.3.0.193 – 10.3.0.20610.3.0.207
1410.3.0.208/2810.3.0.209 – 10.3.0.22210.3.0.223
1510.3.0.224/2810.3.0.225 – 10.3.0.23810.3.0.239
1610.3.0.240/2810.3.0.241 – 10.3.0.25410.3.0.255
1710.3.1.0/2810.3.1.1 – 10.3.1.1410.3.1.15
1810.3.1.16/2810.3.1.17 – 10.3.1.3010.3.1.31
1910.3.1.32/2810.3.1.33 – 10.3.1.4610.3.1.47
2010.3.1.48/2810.3.1.49 – 10.3.1.6210.3.1.63
2110.3.1.64/2810.3.1.65 – 10.3.1.7810.3.1.79
2210.3.1.80/2810.3.1.81 – 10.3.1.9410.3.1.95
2310.3.1.96/2810.3.1.97 – 10.3.1.11010.3.1.111
2410.3.1.112/2810.3.1.113 – 10.3.1.12610.3.1.127
2510.3.1.128/2810.3.1.129 – 10.3.1.14210.3.1.143
2610.3.1.144/2810.3.1.145 – 10.3.1.15810.3.1.159
2710.3.1.160/2810.3.1.161 – 10.3.1.17410.3.1.175
2810.3.1.176/2810.3.1.177 – 10.3.1.19010.3.1.191
2910.3.1.192/2810.3.1.193 – 10.3.1.20610.3.1.207
3010.3.1.208/2810.3.1.209 – 10.3.1.22210.3.1.223
3110.3.1.224/2810.3.1.225 – 10.3.1.23810.3.1.239
3210.3.1.240/2810.3.1.241 – 10.3.1.25410.3.1.255
3310.3.2.0/2810.3.2.1 – 10.3.2.1410.3.2.15
3410.3.2.16/2810.3.2.17 – 10.3.2.3010.3.2.31
3510.3.2.32/2810.3.2.33 – 10.3.2.4610.3.2.47
3610.3.2.48/2810.3.2.49 – 10.3.2.6210.3.2.63
3710.3.2.64/2810.3.2.65 – 10.3.2.7810.3.2.79
3810.3.2.80/2810.3.2.81 – 10.3.2.9410.3.2.95
3910.3.2.96/2810.3.2.97 – 10.3.2.11010.3.2.111
4010.3.2.112/2810.3.2.113 – 10.3.2.12610.3.2.127
4110.3.2.128/2810.3.2.129 – 10.3.2.14210.3.2.143
4210.3.2.144/2810.3.2.145 – 10.3.2.15810.3.2.159
4310.3.2.160/2810.3.2.161 – 10.3.2.17410.3.2.175
4410.3.2.176/2810.3.2.177 – 10.3.2.19010.3.2.191
4510.3.2.192/2810.3.2.193 – 10.3.2.20610.3.2.207
4610.3.2.208/2810.3.2.209 – 10.3.2.22210.3.2.223
4710.3.2.224/2810.3.2.225 – 10.3.2.23810.3.2.239
4810.3.2.240/2810.3.2.241 – 10.3.2.25410.3.2.255
4910.3.3.0/2810.3.3.1 – 10.3.3.1410.3.3.15
5010.3.3.16/2810.3.3.17 – 10.3.3.3010.3.3.31
5110.3.3.32/2810.3.3.33 – 10.3.3.4610.3.3.47
5210.3.3.48/2810.3.3.49 – 10.3.3.6210.3.3.63
5310.3.3.64/2810.3.3.65 – 10.3.3.7810.3.3.79
5410.3.3.80/2810.3.3.81 – 10.3.3.9410.3.3.95
5510.3.3.96/2810.3.3.97 – 10.3.3.11010.3.3.111
5610.3.3.112/2810.3.3.113 – 10.3.3.12610.3.3.127
5710.3.3.128/2810.3.3.129 – 10.3.3.14210.3.3.143
5810.3.3.144/2810.3.3.145 – 10.3.3.15810.3.3.159
5910.3.3.160/2810.3.3.161 – 10.3.3.17410.3.3.175
6010.3.3.176/2810.3.3.177 – 10.3.3.19010.3.3.191
6110.3.3.192/2810.3.3.193 – 10.3.3.20610.3.3.207
6210.3.3.208/2810.3.3.209 – 10.3.3.22210.3.3.223
6310.3.3.224/2810.3.3.225 – 10.3.3.23810.3.3.239
6410.3.3.240/2810.3.3.241 – 10.3.3.25410.3.3.255
6510.3.4.0/2810.3.4.1 – 10.3.4.1410.3.4.15
6610.3.4.16/2810.3.4.17 – 10.3.4.3010.3.4.31
6710.3.4.32/2810.3.4.33 – 10.3.4.4610.3.4.47
6810.3.4.48/2810.3.4.49 – 10.3.4.6210.3.4.63
6910.3.4.64/2810.3.4.65 – 10.3.4.7810.3.4.79
7010.3.4.80/2810.3.4.81 – 10.3.4.9410.3.4.95
7110.3.4.96/2810.3.4.97 – 10.3.4.11010.3.4.111
7210.3.4.112/2810.3.4.113 – 10.3.4.12610.3.4.127
7310.3.4.128/2810.3.4.129 – 10.3.4.14210.3.4.143
7410.3.4.144/2810.3.4.145 – 10.3.4.15810.3.4.159
7510.3.4.160/2810.3.4.161 – 10.3.4.17410.3.4.175
7610.3.4.176/2810.3.4.177 – 10.3.4.19010.3.4.191
7710.3.4.192/2810.3.4.193 – 10.3.4.20610.3.4.207
7810.3.4.208/2810.3.4.209 – 10.3.4.22210.3.4.223
7910.3.4.224/2810.3.4.225 – 10.3.4.23810.3.4.239
8010.3.4.240/2810.3.4.241 – 10.3.4.25410.3.4.255
8110.3.5.0/2810.3.5.1 – 10.3.5.1410.3.5.15
8210.3.5.16/2810.3.5.17 – 10.3.5.3010.3.5.31
8310.3.5.32/2810.3.5.33 – 10.3.5.4610.3.5.47
8410.3.5.48/2810.3.5.49 – 10.3.5.6210.3.5.63
8510.3.5.64/2810.3.5.65 – 10.3.5.7810.3.5.79
8610.3.5.80/2810.3.5.81 – 10.3.5.9410.3.5.95
8710.3.5.96/2810.3.5.97 – 10.3.5.11010.3.5.111
8810.3.5.112/2810.3.5.113 – 10.3.5.12610.3.5.127
8910.3.5.128/2810.3.5.129 – 10.3.5.14210.3.5.143
9010.3.5.144/2810.3.5.145 – 10.3.5.15810.3.5.159
9110.3.5.160/2810.3.5.161 – 10.3.5.17410.3.5.175
9210.3.5.176/2810.3.5.177 – 10.3.5.19010.3.5.191
9310.3.5.192/2810.3.5.193 – 10.3.5.20610.3.5.207
9410.3.5.208/2810.3.5.209 – 10.3.5.22210.3.5.223
9510.3.5.224/2810.3.5.225 – 10.3.5.23810.3.5.239
9610.3.5.240/2810.3.5.241 – 10.3.5.25410.3.5.255
9710.3.6.0/2810.3.6.1 – 10.3.6.1410.3.6.15
9810.3.6.16/2810.3.6.17 – 10.3.6.3010.3.6.31
9910.3.6.32/2810.3.6.33 – 10.3.6.4610.3.6.47
10010.3.6.48/2810.3.6.49 – 10.3.6.6210.3.6.63
10110.3.6.64/2810.3.6.65 – 10.3.6.7810.3.6.79
10210.3.6.80/2810.3.6.81 – 10.3.6.9410.3.6.95
10310.3.6.96/2810.3.6.97 – 10.3.6.11010.3.6.111
10410.3.6.112/2810.3.6.113 – 10.3.6.12610.3.6.127
10510.3.6.128/2810.3.6.129 – 10.3.6.14210.3.6.143
10610.3.6.144/2810.3.6.145 – 10.3.6.15810.3.6.159
10710.3.6.160/2810.3.6.161 – 10.3.6.17410.3.6.175
10810.3.6.176/2810.3.6.177 – 10.3.6.19010.3.6.191
10910.3.6.192/2810.3.6.193 – 10.3.6.20610.3.6.207
11010.3.6.208/2810.3.6.209 – 10.3.6.22210.3.6.223
11110.3.6.224/2810.3.6.225 – 10.3.6.23810.3.6.239
11210.3.6.240/2810.3.6.241 – 10.3.6.25410.3.6.255
11310.3.7.0/2810.3.7.1 – 10.3.7.1410.3.7.15
11410.3.7.16/2810.3.7.17 – 10.3.7.3010.3.7.31
11510.3.7.32/2810.3.7.33 – 10.3.7.4610.3.7.47
11610.3.7.48/2810.3.7.49 – 10.3.7.6210.3.7.63
11710.3.7.64/2810.3.7.65 – 10.3.7.7810.3.7.79
11810.3.7.80/2810.3.7.81 – 10.3.7.9410.3.7.95
11910.3.7.96/2810.3.7.97 – 10.3.7.11010.3.7.111
12010.3.7.112/2810.3.7.113 – 10.3.7.12610.3.7.127
12110.3.7.128/2810.3.7.129 – 10.3.7.14210.3.7.143
12210.3.7.144/2810.3.7.145 – 10.3.7.15810.3.7.159
12310.3.7.160/2810.3.7.161 – 10.3.7.17410.3.7.175
12410.3.7.176/2810.3.7.177 – 10.3.7.19010.3.7.191
12510.3.7.192/2810.3.7.193 – 10.3.7.20610.3.7.207
12610.3.7.208/2810.3.7.209 – 10.3.7.22210.3.7.223
12710.3.7.224/2810.3.7.225 – 10.3.7.23810.3.7.239
12810.3.7.240/2810.3.7.241 – 10.3.7.25410.3.7.255
12910.3.8.0/2810.3.8.1 – 10.3.8.1410.3.8.15
13010.3.8.16/2810.3.8.17 – 10.3.8.3010.3.8.31
13110.3.8.32/2810.3.8.33 – 10.3.8.4610.3.8.47
13210.3.8.48/2810.3.8.49 – 10.3.8.6210.3.8.63
13310.3.8.64/2810.3.8.65 – 10.3.8.7810.3.8.79
13410.3.8.80/2810.3.8.81 – 10.3.8.9410.3.8.95
13510.3.8.96/2810.3.8.97 – 10.3.8.11010.3.8.111
13610.3.8.112/2810.3.8.113 – 10.3.8.12610.3.8.127
13710.3.8.128/2810.3.8.129 – 10.3.8.14210.3.8.143
13810.3.8.144/2810.3.8.145 – 10.3.8.15810.3.8.159
13910.3.8.160/2810.3.8.161 – 10.3.8.17410.3.8.175
14010.3.8.176/2810.3.8.177 – 10.3.8.19010.3.8.191
14110.3.8.192/2810.3.8.193 – 10.3.8.20610.3.8.207
14210.3.8.208/2810.3.8.209 – 10.3.8.22210.3.8.223
14310.3.8.224/2810.3.8.225 – 10.3.8.23810.3.8.239
14410.3.8.240/2810.3.8.241 – 10.3.8.25410.3.8.255
14510.3.9.0/2810.3.9.1 – 10.3.9.1410.3.9.15
14610.3.9.16/2810.3.9.17 – 10.3.9.3010.3.9.31
14710.3.9.32/2810.3.9.33 – 10.3.9.4610.3.9.47
14810.3.9.48/2810.3.9.49 – 10.3.9.6210.3.9.63
14910.3.9.64/2810.3.9.65 – 10.3.9.7810.3.9.79
15010.3.9.80/2810.3.9.81 – 10.3.9.9410.3.9.95
15110.3.9.96/2810.3.9.97 – 10.3.9.11010.3.9.111
15210.3.9.112/2810.3.9.113 – 10.3.9.12610.3.9.127
15310.3.9.128/2810.3.9.129 – 10.3.9.14210.3.9.143
15410.3.9.144/2810.3.9.145 – 10.3.9.15810.3.9.159
15510.3.9.160/2810.3.9.161 – 10.3.9.17410.3.9.175
15610.3.9.176/2810.3.9.177 – 10.3.9.19010.3.9.191
15710.3.9.192/2810.3.9.193 – 10.3.9.20610.3.9.207
15810.3.9.208/2810.3.9.209 – 10.3.9.22210.3.9.223
15910.3.9.224/2810.3.9.225 – 10.3.9.23810.3.9.239
16010.3.9.240/2810.3.9.241 – 10.3.9.25410.3.9.255
16110.3.10.0/2810.3.10.1 – 10.3.10.1410.3.10.15
16210.3.10.16/2810.3.10.17 – 10.3.10.3010.3.10.31
16310.3.10.32/2810.3.10.33 – 10.3.10.4610.3.10.47
16410.3.10.48/2810.3.10.49 – 10.3.10.6210.3.10.63
16510.3.10.64/2810.3.10.65 – 10.3.10.7810.3.10.79
16610.3.10.80/2810.3.10.81 – 10.3.10.9410.3.10.95
16710.3.10.96/2810.3.10.97 – 10.3.10.11010.3.10.111
16810.3.10.112/2810.3.10.113 – 10.3.10.12610.3.10.127
16910.3.10.128/2810.3.10.129 – 10.3.10.14210.3.10.143
17010.3.10.144/2810.3.10.145 – 10.3.10.15810.3.10.159
17110.3.10.160/2810.3.10.161 – 10.3.10.17410.3.10.175
17210.3.10.176/2810.3.10.177 – 10.3.10.19010.3.10.191
17310.3.10.192/2810.3.10.193 – 10.3.10.20610.3.10.207
17410.3.10.208/2810.3.10.209 – 10.3.10.22210.3.10.223
17510.3.10.224/2810.3.10.225 – 10.3.10.23810.3.10.239
17610.3.10.240/2810.3.10.241 – 10.3.10.25410.3.10.255
17710.3.11.0/2810.3.11.1 – 10.3.11.1410.3.11.15
17810.3.11.16/2810.3.11.17 – 10.3.11.3010.3.11.31
17910.3.11.32/2810.3.11.33 – 10.3.11.4610.3.11.47
18010.3.11.48/2810.3.11.49 – 10.3.11.6210.3.11.63
18110.3.11.64/2810.3.11.65 – 10.3.11.7810.3.11.79
18210.3.11.80/2810.3.11.81 – 10.3.11.9410.3.11.95
18310.3.11.96/2810.3.11.97 – 10.3.11.11010.3.11.111
18410.3.11.112/2810.3.11.113 – 10.3.11.12610.3.11.127
18510.3.11.128/2810.3.11.129 – 10.3.11.14210.3.11.143
18610.3.11.144/2810.3.11.145 – 10.3.11.15810.3.11.159
18710.3.11.160/2810.3.11.161 – 10.3.11.17410.3.11.175
18810.3.11.176/2810.3.11.177 – 10.3.11.19010.3.11.191
18910.3.11.192/2810.3.11.193 – 10.3.11.20610.3.11.207
19010.3.11.208/2810.3.11.209 – 10.3.11.22210.3.11.223
19110.3.11.224/2810.3.11.225 – 10.3.11.23810.3.11.239
19210.3.11.240/2810.3.11.241 – 10.3.11.25410.3.11.255
19310.3.12.0/2810.3.12.1 – 10.3.12.1410.3.12.15
19410.3.12.16/2810.3.12.17 – 10.3.12.3010.3.12.31
19510.3.12.32/2810.3.12.33 – 10.3.12.4610.3.12.47
19610.3.12.48/2810.3.12.49 – 10.3.12.6210.3.12.63
19710.3.12.64/2810.3.12.65 – 10.3.12.7810.3.12.79
19810.3.12.80/2810.3.12.81 – 10.3.12.9410.3.12.95
19910.3.12.96/2810.3.12.97 – 10.3.12.11010.3.12.111
20010.3.12.112/2810.3.12.113 – 10.3.12.12610.3.12.127
20110.3.12.128/2810.3.12.129 – 10.3.12.14210.3.12.143
20210.3.12.144/2810.3.12.145 – 10.3.12.15810.3.12.159
20310.3.12.160/2810.3.12.161 – 10.3.12.17410.3.12.175
20410.3.12.176/2810.3.12.177 – 10.3.12.19010.3.12.191
20510.3.12.192/2810.3.12.193 – 10.3.12.20610.3.12.207
20610.3.12.208/2810.3.12.209 – 10.3.12.22210.3.12.223
20710.3.12.224/2810.3.12.225 – 10.3.12.23810.3.12.239
20810.3.12.240/2810.3.12.241 – 10.3.12.25410.3.12.255
20910.3.13.0/2810.3.13.1 – 10.3.13.1410.3.13.15
21010.3.13.16/2810.3.13.17 – 10.3.13.3010.3.13.31
21110.3.13.32/2810.3.13.33 – 10.3.13.4610.3.13.47
21210.3.13.48/2810.3.13.49 – 10.3.13.6210.3.13.63
21310.3.13.64/2810.3.13.65 – 10.3.13.7810.3.13.79
21410.3.13.80/2810.3.13.81 – 10.3.13.9410.3.13.95
21510.3.13.96/2810.3.13.97 – 10.3.13.11010.3.13.111
21610.3.13.112/2810.3.13.113 – 10.3.13.12610.3.13.127
21710.3.13.128/2810.3.13.129 – 10.3.13.14210.3.13.143
21810.3.13.144/2810.3.13.145 – 10.3.13.15810.3.13.159
21910.3.13.160/2810.3.13.161 – 10.3.13.17410.3.13.175
22010.3.13.176/2810.3.13.177 – 10.3.13.19010.3.13.191
22110.3.13.192/2810.3.13.193 – 10.3.13.20610.3.13.207
22210.3.13.208/2810.3.13.209 – 10.3.13.22210.3.13.223
22310.3.13.224/2810.3.13.225 – 10.3.13.23810.3.13.239
22410.3.13.240/2810.3.13.241 – 10.3.13.25410.3.13.255
22510.3.14.0/2810.3.14.1 – 10.3.14.1410.3.14.15
22610.3.14.16/2810.3.14.17 – 10.3.14.3010.3.14.31
22710.3.14.32/2810.3.14.33 – 10.3.14.4610.3.14.47
22810.3.14.48/2810.3.14.49 – 10.3.14.6210.3.14.63
22910.3.14.64/2810.3.14.65 – 10.3.14.7810.3.14.79
23010.3.14.80/2810.3.14.81 – 10.3.14.9410.3.14.95
23110.3.14.96/2810.3.14.97 – 10.3.14.11010.3.14.111
23210.3.14.112/2810.3.14.113 – 10.3.14.12610.3.14.127
23310.3.14.128/2810.3.14.129 – 10.3.14.14210.3.14.143
23410.3.14.144/2810.3.14.145 – 10.3.14.15810.3.14.159
23510.3.14.160/2810.3.14.161 – 10.3.14.17410.3.14.175
23610.3.14.176/2810.3.14.177 – 10.3.14.19010.3.14.191
23710.3.14.192/2810.3.14.193 – 10.3.14.20610.3.14.207
23810.3.14.208/2810.3.14.209 – 10.3.14.22210.3.14.223
23910.3.14.224/2810.3.14.225 – 10.3.14.23810.3.14.239
24010.3.14.240/2810.3.14.241 – 10.3.14.25410.3.14.255
24110.3.15.0/2810.3.15.1 – 10.3.15.1410.3.15.15
24210.3.15.16/2810.3.15.17 – 10.3.15.3010.3.15.31
24310.3.15.32/2810.3.15.33 – 10.3.15.4610.3.15.47
24410.3.15.48/2810.3.15.49 – 10.3.15.6210.3.15.63
24510.3.15.64/2810.3.15.65 – 10.3.15.7810.3.15.79
24610.3.15.80/2810.3.15.81 – 10.3.15.9410.3.15.95
24710.3.15.96/2810.3.15.97 – 10.3.15.11010.3.15.111
24810.3.15.112/2810.3.15.113 – 10.3.15.12610.3.15.127
24910.3.15.128/2810.3.15.129 – 10.3.15.14210.3.15.143
25010.3.15.144/2810.3.15.145 – 10.3.15.15810.3.15.159
25110.3.15.160/2810.3.15.161 – 10.3.15.17410.3.15.175
25210.3.15.176/2810.3.15.177 – 10.3.15.19010.3.15.191
25310.3.15.192/2810.3.15.193 – 10.3.15.20610.3.15.207
25410.3.15.208/2810.3.15.209 – 10.3.15.22210.3.15.223
25510.3.15.224/2810.3.15.225 – 10.3.15.23810.3.15.239
25610.3.15.240/2810.3.15.241 – 10.3.15.25410.3.15.255

showing 256 of 1,024

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 →