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)10.125.0.0/16
network10.125.0.0/16
broadcast10.125.255.255
first host10.125.0.1
last host10.125.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.125.0.0/16
address00001010.01111101.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.01111101.00000000.00000000
broadcast00001010.01111101.11111111.11111111
green = network part, grey = host part
hex0x0a7d0000
decimal175964160
reverse dns0.0.125.10.in-addr.arpa
ipv4-mapped::ffff:a7d:0

/16 split into /27 · 2,048 subnets

close ×
#networkhost rangebroadcast
110.125.0.0/2710.125.0.1 – 10.125.0.3010.125.0.31
210.125.0.32/2710.125.0.33 – 10.125.0.6210.125.0.63
310.125.0.64/2710.125.0.65 – 10.125.0.9410.125.0.95
410.125.0.96/2710.125.0.97 – 10.125.0.12610.125.0.127
510.125.0.128/2710.125.0.129 – 10.125.0.15810.125.0.159
610.125.0.160/2710.125.0.161 – 10.125.0.19010.125.0.191
710.125.0.192/2710.125.0.193 – 10.125.0.22210.125.0.223
810.125.0.224/2710.125.0.225 – 10.125.0.25410.125.0.255
910.125.1.0/2710.125.1.1 – 10.125.1.3010.125.1.31
1010.125.1.32/2710.125.1.33 – 10.125.1.6210.125.1.63
1110.125.1.64/2710.125.1.65 – 10.125.1.9410.125.1.95
1210.125.1.96/2710.125.1.97 – 10.125.1.12610.125.1.127
1310.125.1.128/2710.125.1.129 – 10.125.1.15810.125.1.159
1410.125.1.160/2710.125.1.161 – 10.125.1.19010.125.1.191
1510.125.1.192/2710.125.1.193 – 10.125.1.22210.125.1.223
1610.125.1.224/2710.125.1.225 – 10.125.1.25410.125.1.255
1710.125.2.0/2710.125.2.1 – 10.125.2.3010.125.2.31
1810.125.2.32/2710.125.2.33 – 10.125.2.6210.125.2.63
1910.125.2.64/2710.125.2.65 – 10.125.2.9410.125.2.95
2010.125.2.96/2710.125.2.97 – 10.125.2.12610.125.2.127
2110.125.2.128/2710.125.2.129 – 10.125.2.15810.125.2.159
2210.125.2.160/2710.125.2.161 – 10.125.2.19010.125.2.191
2310.125.2.192/2710.125.2.193 – 10.125.2.22210.125.2.223
2410.125.2.224/2710.125.2.225 – 10.125.2.25410.125.2.255
2510.125.3.0/2710.125.3.1 – 10.125.3.3010.125.3.31
2610.125.3.32/2710.125.3.33 – 10.125.3.6210.125.3.63
2710.125.3.64/2710.125.3.65 – 10.125.3.9410.125.3.95
2810.125.3.96/2710.125.3.97 – 10.125.3.12610.125.3.127
2910.125.3.128/2710.125.3.129 – 10.125.3.15810.125.3.159
3010.125.3.160/2710.125.3.161 – 10.125.3.19010.125.3.191
3110.125.3.192/2710.125.3.193 – 10.125.3.22210.125.3.223
3210.125.3.224/2710.125.3.225 – 10.125.3.25410.125.3.255
3310.125.4.0/2710.125.4.1 – 10.125.4.3010.125.4.31
3410.125.4.32/2710.125.4.33 – 10.125.4.6210.125.4.63
3510.125.4.64/2710.125.4.65 – 10.125.4.9410.125.4.95
3610.125.4.96/2710.125.4.97 – 10.125.4.12610.125.4.127
3710.125.4.128/2710.125.4.129 – 10.125.4.15810.125.4.159
3810.125.4.160/2710.125.4.161 – 10.125.4.19010.125.4.191
3910.125.4.192/2710.125.4.193 – 10.125.4.22210.125.4.223
4010.125.4.224/2710.125.4.225 – 10.125.4.25410.125.4.255
4110.125.5.0/2710.125.5.1 – 10.125.5.3010.125.5.31
4210.125.5.32/2710.125.5.33 – 10.125.5.6210.125.5.63
4310.125.5.64/2710.125.5.65 – 10.125.5.9410.125.5.95
4410.125.5.96/2710.125.5.97 – 10.125.5.12610.125.5.127
4510.125.5.128/2710.125.5.129 – 10.125.5.15810.125.5.159
4610.125.5.160/2710.125.5.161 – 10.125.5.19010.125.5.191
4710.125.5.192/2710.125.5.193 – 10.125.5.22210.125.5.223
4810.125.5.224/2710.125.5.225 – 10.125.5.25410.125.5.255
4910.125.6.0/2710.125.6.1 – 10.125.6.3010.125.6.31
5010.125.6.32/2710.125.6.33 – 10.125.6.6210.125.6.63
5110.125.6.64/2710.125.6.65 – 10.125.6.9410.125.6.95
5210.125.6.96/2710.125.6.97 – 10.125.6.12610.125.6.127
5310.125.6.128/2710.125.6.129 – 10.125.6.15810.125.6.159
5410.125.6.160/2710.125.6.161 – 10.125.6.19010.125.6.191
5510.125.6.192/2710.125.6.193 – 10.125.6.22210.125.6.223
5610.125.6.224/2710.125.6.225 – 10.125.6.25410.125.6.255
5710.125.7.0/2710.125.7.1 – 10.125.7.3010.125.7.31
5810.125.7.32/2710.125.7.33 – 10.125.7.6210.125.7.63
5910.125.7.64/2710.125.7.65 – 10.125.7.9410.125.7.95
6010.125.7.96/2710.125.7.97 – 10.125.7.12610.125.7.127
6110.125.7.128/2710.125.7.129 – 10.125.7.15810.125.7.159
6210.125.7.160/2710.125.7.161 – 10.125.7.19010.125.7.191
6310.125.7.192/2710.125.7.193 – 10.125.7.22210.125.7.223
6410.125.7.224/2710.125.7.225 – 10.125.7.25410.125.7.255
6510.125.8.0/2710.125.8.1 – 10.125.8.3010.125.8.31
6610.125.8.32/2710.125.8.33 – 10.125.8.6210.125.8.63
6710.125.8.64/2710.125.8.65 – 10.125.8.9410.125.8.95
6810.125.8.96/2710.125.8.97 – 10.125.8.12610.125.8.127
6910.125.8.128/2710.125.8.129 – 10.125.8.15810.125.8.159
7010.125.8.160/2710.125.8.161 – 10.125.8.19010.125.8.191
7110.125.8.192/2710.125.8.193 – 10.125.8.22210.125.8.223
7210.125.8.224/2710.125.8.225 – 10.125.8.25410.125.8.255
7310.125.9.0/2710.125.9.1 – 10.125.9.3010.125.9.31
7410.125.9.32/2710.125.9.33 – 10.125.9.6210.125.9.63
7510.125.9.64/2710.125.9.65 – 10.125.9.9410.125.9.95
7610.125.9.96/2710.125.9.97 – 10.125.9.12610.125.9.127
7710.125.9.128/2710.125.9.129 – 10.125.9.15810.125.9.159
7810.125.9.160/2710.125.9.161 – 10.125.9.19010.125.9.191
7910.125.9.192/2710.125.9.193 – 10.125.9.22210.125.9.223
8010.125.9.224/2710.125.9.225 – 10.125.9.25410.125.9.255
8110.125.10.0/2710.125.10.1 – 10.125.10.3010.125.10.31
8210.125.10.32/2710.125.10.33 – 10.125.10.6210.125.10.63
8310.125.10.64/2710.125.10.65 – 10.125.10.9410.125.10.95
8410.125.10.96/2710.125.10.97 – 10.125.10.12610.125.10.127
8510.125.10.128/2710.125.10.129 – 10.125.10.15810.125.10.159
8610.125.10.160/2710.125.10.161 – 10.125.10.19010.125.10.191
8710.125.10.192/2710.125.10.193 – 10.125.10.22210.125.10.223
8810.125.10.224/2710.125.10.225 – 10.125.10.25410.125.10.255
8910.125.11.0/2710.125.11.1 – 10.125.11.3010.125.11.31
9010.125.11.32/2710.125.11.33 – 10.125.11.6210.125.11.63
9110.125.11.64/2710.125.11.65 – 10.125.11.9410.125.11.95
9210.125.11.96/2710.125.11.97 – 10.125.11.12610.125.11.127
9310.125.11.128/2710.125.11.129 – 10.125.11.15810.125.11.159
9410.125.11.160/2710.125.11.161 – 10.125.11.19010.125.11.191
9510.125.11.192/2710.125.11.193 – 10.125.11.22210.125.11.223
9610.125.11.224/2710.125.11.225 – 10.125.11.25410.125.11.255
9710.125.12.0/2710.125.12.1 – 10.125.12.3010.125.12.31
9810.125.12.32/2710.125.12.33 – 10.125.12.6210.125.12.63
9910.125.12.64/2710.125.12.65 – 10.125.12.9410.125.12.95
10010.125.12.96/2710.125.12.97 – 10.125.12.12610.125.12.127
10110.125.12.128/2710.125.12.129 – 10.125.12.15810.125.12.159
10210.125.12.160/2710.125.12.161 – 10.125.12.19010.125.12.191
10310.125.12.192/2710.125.12.193 – 10.125.12.22210.125.12.223
10410.125.12.224/2710.125.12.225 – 10.125.12.25410.125.12.255
10510.125.13.0/2710.125.13.1 – 10.125.13.3010.125.13.31
10610.125.13.32/2710.125.13.33 – 10.125.13.6210.125.13.63
10710.125.13.64/2710.125.13.65 – 10.125.13.9410.125.13.95
10810.125.13.96/2710.125.13.97 – 10.125.13.12610.125.13.127
10910.125.13.128/2710.125.13.129 – 10.125.13.15810.125.13.159
11010.125.13.160/2710.125.13.161 – 10.125.13.19010.125.13.191
11110.125.13.192/2710.125.13.193 – 10.125.13.22210.125.13.223
11210.125.13.224/2710.125.13.225 – 10.125.13.25410.125.13.255
11310.125.14.0/2710.125.14.1 – 10.125.14.3010.125.14.31
11410.125.14.32/2710.125.14.33 – 10.125.14.6210.125.14.63
11510.125.14.64/2710.125.14.65 – 10.125.14.9410.125.14.95
11610.125.14.96/2710.125.14.97 – 10.125.14.12610.125.14.127
11710.125.14.128/2710.125.14.129 – 10.125.14.15810.125.14.159
11810.125.14.160/2710.125.14.161 – 10.125.14.19010.125.14.191
11910.125.14.192/2710.125.14.193 – 10.125.14.22210.125.14.223
12010.125.14.224/2710.125.14.225 – 10.125.14.25410.125.14.255
12110.125.15.0/2710.125.15.1 – 10.125.15.3010.125.15.31
12210.125.15.32/2710.125.15.33 – 10.125.15.6210.125.15.63
12310.125.15.64/2710.125.15.65 – 10.125.15.9410.125.15.95
12410.125.15.96/2710.125.15.97 – 10.125.15.12610.125.15.127
12510.125.15.128/2710.125.15.129 – 10.125.15.15810.125.15.159
12610.125.15.160/2710.125.15.161 – 10.125.15.19010.125.15.191
12710.125.15.192/2710.125.15.193 – 10.125.15.22210.125.15.223
12810.125.15.224/2710.125.15.225 – 10.125.15.25410.125.15.255
12910.125.16.0/2710.125.16.1 – 10.125.16.3010.125.16.31
13010.125.16.32/2710.125.16.33 – 10.125.16.6210.125.16.63
13110.125.16.64/2710.125.16.65 – 10.125.16.9410.125.16.95
13210.125.16.96/2710.125.16.97 – 10.125.16.12610.125.16.127
13310.125.16.128/2710.125.16.129 – 10.125.16.15810.125.16.159
13410.125.16.160/2710.125.16.161 – 10.125.16.19010.125.16.191
13510.125.16.192/2710.125.16.193 – 10.125.16.22210.125.16.223
13610.125.16.224/2710.125.16.225 – 10.125.16.25410.125.16.255
13710.125.17.0/2710.125.17.1 – 10.125.17.3010.125.17.31
13810.125.17.32/2710.125.17.33 – 10.125.17.6210.125.17.63
13910.125.17.64/2710.125.17.65 – 10.125.17.9410.125.17.95
14010.125.17.96/2710.125.17.97 – 10.125.17.12610.125.17.127
14110.125.17.128/2710.125.17.129 – 10.125.17.15810.125.17.159
14210.125.17.160/2710.125.17.161 – 10.125.17.19010.125.17.191
14310.125.17.192/2710.125.17.193 – 10.125.17.22210.125.17.223
14410.125.17.224/2710.125.17.225 – 10.125.17.25410.125.17.255
14510.125.18.0/2710.125.18.1 – 10.125.18.3010.125.18.31
14610.125.18.32/2710.125.18.33 – 10.125.18.6210.125.18.63
14710.125.18.64/2710.125.18.65 – 10.125.18.9410.125.18.95
14810.125.18.96/2710.125.18.97 – 10.125.18.12610.125.18.127
14910.125.18.128/2710.125.18.129 – 10.125.18.15810.125.18.159
15010.125.18.160/2710.125.18.161 – 10.125.18.19010.125.18.191
15110.125.18.192/2710.125.18.193 – 10.125.18.22210.125.18.223
15210.125.18.224/2710.125.18.225 – 10.125.18.25410.125.18.255
15310.125.19.0/2710.125.19.1 – 10.125.19.3010.125.19.31
15410.125.19.32/2710.125.19.33 – 10.125.19.6210.125.19.63
15510.125.19.64/2710.125.19.65 – 10.125.19.9410.125.19.95
15610.125.19.96/2710.125.19.97 – 10.125.19.12610.125.19.127
15710.125.19.128/2710.125.19.129 – 10.125.19.15810.125.19.159
15810.125.19.160/2710.125.19.161 – 10.125.19.19010.125.19.191
15910.125.19.192/2710.125.19.193 – 10.125.19.22210.125.19.223
16010.125.19.224/2710.125.19.225 – 10.125.19.25410.125.19.255
16110.125.20.0/2710.125.20.1 – 10.125.20.3010.125.20.31
16210.125.20.32/2710.125.20.33 – 10.125.20.6210.125.20.63
16310.125.20.64/2710.125.20.65 – 10.125.20.9410.125.20.95
16410.125.20.96/2710.125.20.97 – 10.125.20.12610.125.20.127
16510.125.20.128/2710.125.20.129 – 10.125.20.15810.125.20.159
16610.125.20.160/2710.125.20.161 – 10.125.20.19010.125.20.191
16710.125.20.192/2710.125.20.193 – 10.125.20.22210.125.20.223
16810.125.20.224/2710.125.20.225 – 10.125.20.25410.125.20.255
16910.125.21.0/2710.125.21.1 – 10.125.21.3010.125.21.31
17010.125.21.32/2710.125.21.33 – 10.125.21.6210.125.21.63
17110.125.21.64/2710.125.21.65 – 10.125.21.9410.125.21.95
17210.125.21.96/2710.125.21.97 – 10.125.21.12610.125.21.127
17310.125.21.128/2710.125.21.129 – 10.125.21.15810.125.21.159
17410.125.21.160/2710.125.21.161 – 10.125.21.19010.125.21.191
17510.125.21.192/2710.125.21.193 – 10.125.21.22210.125.21.223
17610.125.21.224/2710.125.21.225 – 10.125.21.25410.125.21.255
17710.125.22.0/2710.125.22.1 – 10.125.22.3010.125.22.31
17810.125.22.32/2710.125.22.33 – 10.125.22.6210.125.22.63
17910.125.22.64/2710.125.22.65 – 10.125.22.9410.125.22.95
18010.125.22.96/2710.125.22.97 – 10.125.22.12610.125.22.127
18110.125.22.128/2710.125.22.129 – 10.125.22.15810.125.22.159
18210.125.22.160/2710.125.22.161 – 10.125.22.19010.125.22.191
18310.125.22.192/2710.125.22.193 – 10.125.22.22210.125.22.223
18410.125.22.224/2710.125.22.225 – 10.125.22.25410.125.22.255
18510.125.23.0/2710.125.23.1 – 10.125.23.3010.125.23.31
18610.125.23.32/2710.125.23.33 – 10.125.23.6210.125.23.63
18710.125.23.64/2710.125.23.65 – 10.125.23.9410.125.23.95
18810.125.23.96/2710.125.23.97 – 10.125.23.12610.125.23.127
18910.125.23.128/2710.125.23.129 – 10.125.23.15810.125.23.159
19010.125.23.160/2710.125.23.161 – 10.125.23.19010.125.23.191
19110.125.23.192/2710.125.23.193 – 10.125.23.22210.125.23.223
19210.125.23.224/2710.125.23.225 – 10.125.23.25410.125.23.255
19310.125.24.0/2710.125.24.1 – 10.125.24.3010.125.24.31
19410.125.24.32/2710.125.24.33 – 10.125.24.6210.125.24.63
19510.125.24.64/2710.125.24.65 – 10.125.24.9410.125.24.95
19610.125.24.96/2710.125.24.97 – 10.125.24.12610.125.24.127
19710.125.24.128/2710.125.24.129 – 10.125.24.15810.125.24.159
19810.125.24.160/2710.125.24.161 – 10.125.24.19010.125.24.191
19910.125.24.192/2710.125.24.193 – 10.125.24.22210.125.24.223
20010.125.24.224/2710.125.24.225 – 10.125.24.25410.125.24.255
20110.125.25.0/2710.125.25.1 – 10.125.25.3010.125.25.31
20210.125.25.32/2710.125.25.33 – 10.125.25.6210.125.25.63
20310.125.25.64/2710.125.25.65 – 10.125.25.9410.125.25.95
20410.125.25.96/2710.125.25.97 – 10.125.25.12610.125.25.127
20510.125.25.128/2710.125.25.129 – 10.125.25.15810.125.25.159
20610.125.25.160/2710.125.25.161 – 10.125.25.19010.125.25.191
20710.125.25.192/2710.125.25.193 – 10.125.25.22210.125.25.223
20810.125.25.224/2710.125.25.225 – 10.125.25.25410.125.25.255
20910.125.26.0/2710.125.26.1 – 10.125.26.3010.125.26.31
21010.125.26.32/2710.125.26.33 – 10.125.26.6210.125.26.63
21110.125.26.64/2710.125.26.65 – 10.125.26.9410.125.26.95
21210.125.26.96/2710.125.26.97 – 10.125.26.12610.125.26.127
21310.125.26.128/2710.125.26.129 – 10.125.26.15810.125.26.159
21410.125.26.160/2710.125.26.161 – 10.125.26.19010.125.26.191
21510.125.26.192/2710.125.26.193 – 10.125.26.22210.125.26.223
21610.125.26.224/2710.125.26.225 – 10.125.26.25410.125.26.255
21710.125.27.0/2710.125.27.1 – 10.125.27.3010.125.27.31
21810.125.27.32/2710.125.27.33 – 10.125.27.6210.125.27.63
21910.125.27.64/2710.125.27.65 – 10.125.27.9410.125.27.95
22010.125.27.96/2710.125.27.97 – 10.125.27.12610.125.27.127
22110.125.27.128/2710.125.27.129 – 10.125.27.15810.125.27.159
22210.125.27.160/2710.125.27.161 – 10.125.27.19010.125.27.191
22310.125.27.192/2710.125.27.193 – 10.125.27.22210.125.27.223
22410.125.27.224/2710.125.27.225 – 10.125.27.25410.125.27.255
22510.125.28.0/2710.125.28.1 – 10.125.28.3010.125.28.31
22610.125.28.32/2710.125.28.33 – 10.125.28.6210.125.28.63
22710.125.28.64/2710.125.28.65 – 10.125.28.9410.125.28.95
22810.125.28.96/2710.125.28.97 – 10.125.28.12610.125.28.127
22910.125.28.128/2710.125.28.129 – 10.125.28.15810.125.28.159
23010.125.28.160/2710.125.28.161 – 10.125.28.19010.125.28.191
23110.125.28.192/2710.125.28.193 – 10.125.28.22210.125.28.223
23210.125.28.224/2710.125.28.225 – 10.125.28.25410.125.28.255
23310.125.29.0/2710.125.29.1 – 10.125.29.3010.125.29.31
23410.125.29.32/2710.125.29.33 – 10.125.29.6210.125.29.63
23510.125.29.64/2710.125.29.65 – 10.125.29.9410.125.29.95
23610.125.29.96/2710.125.29.97 – 10.125.29.12610.125.29.127
23710.125.29.128/2710.125.29.129 – 10.125.29.15810.125.29.159
23810.125.29.160/2710.125.29.161 – 10.125.29.19010.125.29.191
23910.125.29.192/2710.125.29.193 – 10.125.29.22210.125.29.223
24010.125.29.224/2710.125.29.225 – 10.125.29.25410.125.29.255
24110.125.30.0/2710.125.30.1 – 10.125.30.3010.125.30.31
24210.125.30.32/2710.125.30.33 – 10.125.30.6210.125.30.63
24310.125.30.64/2710.125.30.65 – 10.125.30.9410.125.30.95
24410.125.30.96/2710.125.30.97 – 10.125.30.12610.125.30.127
24510.125.30.128/2710.125.30.129 – 10.125.30.15810.125.30.159
24610.125.30.160/2710.125.30.161 – 10.125.30.19010.125.30.191
24710.125.30.192/2710.125.30.193 – 10.125.30.22210.125.30.223
24810.125.30.224/2710.125.30.225 – 10.125.30.25410.125.30.255
24910.125.31.0/2710.125.31.1 – 10.125.31.3010.125.31.31
25010.125.31.32/2710.125.31.33 – 10.125.31.6210.125.31.63
25110.125.31.64/2710.125.31.65 – 10.125.31.9410.125.31.95
25210.125.31.96/2710.125.31.97 – 10.125.31.12610.125.31.127
25310.125.31.128/2710.125.31.129 – 10.125.31.15810.125.31.159
25410.125.31.160/2710.125.31.161 – 10.125.31.19010.125.31.191
25510.125.31.192/2710.125.31.193 – 10.125.31.22210.125.31.223
25610.125.31.224/2710.125.31.225 – 10.125.31.25410.125.31.255

showing 256 of 2,048

01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /16
/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-
/16255.255.0.065,53665,5341
/17255.255.128.032,76832,7662 split →
/18255.255.192.016,38416,3824 split →
/19255.255.224.08,1928,1908 split →
/20255.255.240.04,0964,09416 split →
/21255.255.248.02,0482,04632 split →
/22255.255.252.01,0241,02264 split →
/23255.255.254.0512510128 split →
/24255.255.255.0256254256 split →
/25255.255.255.128128126512 split →
/26255.255.255.19264621,024 split →
/27255.255.255.22432302,048 split →
/28255.255.255.24016144,096 split →
/29255.255.255.248868,192 split →
/30255.255.255.2524216,384 split →
/31255.255.255.2542232,768 split →
/32255.255.255.2551165,536 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 →