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)10.16.0.0/18
network10.16.0.0/18
broadcast10.16.63.255
first host10.16.0.1
last host10.16.63.254
subnet mask255.255.192.0
wildcard0.0.63.255
addresses16,384
usable hosts16,382
classA
ipcalc 10.16.0.0/18
address00001010.00010000.00000000.00000000
subnet mask11111111.11111111.11000000.00000000
network00001010.00010000.00000000.00000000
broadcast00001010.00010000.00111111.11111111
green = network part, grey = host part
hex0x0a100000
decimal168820736
reverse dns0.0.16.10.in-addr.arpa
ipv4-mapped::ffff:a10:0

/18 split into /26 · 256 subnets

close ×
#networkhost rangebroadcast
110.16.0.0/2610.16.0.1 – 10.16.0.6210.16.0.63
210.16.0.64/2610.16.0.65 – 10.16.0.12610.16.0.127
310.16.0.128/2610.16.0.129 – 10.16.0.19010.16.0.191
410.16.0.192/2610.16.0.193 – 10.16.0.25410.16.0.255
510.16.1.0/2610.16.1.1 – 10.16.1.6210.16.1.63
610.16.1.64/2610.16.1.65 – 10.16.1.12610.16.1.127
710.16.1.128/2610.16.1.129 – 10.16.1.19010.16.1.191
810.16.1.192/2610.16.1.193 – 10.16.1.25410.16.1.255
910.16.2.0/2610.16.2.1 – 10.16.2.6210.16.2.63
1010.16.2.64/2610.16.2.65 – 10.16.2.12610.16.2.127
1110.16.2.128/2610.16.2.129 – 10.16.2.19010.16.2.191
1210.16.2.192/2610.16.2.193 – 10.16.2.25410.16.2.255
1310.16.3.0/2610.16.3.1 – 10.16.3.6210.16.3.63
1410.16.3.64/2610.16.3.65 – 10.16.3.12610.16.3.127
1510.16.3.128/2610.16.3.129 – 10.16.3.19010.16.3.191
1610.16.3.192/2610.16.3.193 – 10.16.3.25410.16.3.255
1710.16.4.0/2610.16.4.1 – 10.16.4.6210.16.4.63
1810.16.4.64/2610.16.4.65 – 10.16.4.12610.16.4.127
1910.16.4.128/2610.16.4.129 – 10.16.4.19010.16.4.191
2010.16.4.192/2610.16.4.193 – 10.16.4.25410.16.4.255
2110.16.5.0/2610.16.5.1 – 10.16.5.6210.16.5.63
2210.16.5.64/2610.16.5.65 – 10.16.5.12610.16.5.127
2310.16.5.128/2610.16.5.129 – 10.16.5.19010.16.5.191
2410.16.5.192/2610.16.5.193 – 10.16.5.25410.16.5.255
2510.16.6.0/2610.16.6.1 – 10.16.6.6210.16.6.63
2610.16.6.64/2610.16.6.65 – 10.16.6.12610.16.6.127
2710.16.6.128/2610.16.6.129 – 10.16.6.19010.16.6.191
2810.16.6.192/2610.16.6.193 – 10.16.6.25410.16.6.255
2910.16.7.0/2610.16.7.1 – 10.16.7.6210.16.7.63
3010.16.7.64/2610.16.7.65 – 10.16.7.12610.16.7.127
3110.16.7.128/2610.16.7.129 – 10.16.7.19010.16.7.191
3210.16.7.192/2610.16.7.193 – 10.16.7.25410.16.7.255
3310.16.8.0/2610.16.8.1 – 10.16.8.6210.16.8.63
3410.16.8.64/2610.16.8.65 – 10.16.8.12610.16.8.127
3510.16.8.128/2610.16.8.129 – 10.16.8.19010.16.8.191
3610.16.8.192/2610.16.8.193 – 10.16.8.25410.16.8.255
3710.16.9.0/2610.16.9.1 – 10.16.9.6210.16.9.63
3810.16.9.64/2610.16.9.65 – 10.16.9.12610.16.9.127
3910.16.9.128/2610.16.9.129 – 10.16.9.19010.16.9.191
4010.16.9.192/2610.16.9.193 – 10.16.9.25410.16.9.255
4110.16.10.0/2610.16.10.1 – 10.16.10.6210.16.10.63
4210.16.10.64/2610.16.10.65 – 10.16.10.12610.16.10.127
4310.16.10.128/2610.16.10.129 – 10.16.10.19010.16.10.191
4410.16.10.192/2610.16.10.193 – 10.16.10.25410.16.10.255
4510.16.11.0/2610.16.11.1 – 10.16.11.6210.16.11.63
4610.16.11.64/2610.16.11.65 – 10.16.11.12610.16.11.127
4710.16.11.128/2610.16.11.129 – 10.16.11.19010.16.11.191
4810.16.11.192/2610.16.11.193 – 10.16.11.25410.16.11.255
4910.16.12.0/2610.16.12.1 – 10.16.12.6210.16.12.63
5010.16.12.64/2610.16.12.65 – 10.16.12.12610.16.12.127
5110.16.12.128/2610.16.12.129 – 10.16.12.19010.16.12.191
5210.16.12.192/2610.16.12.193 – 10.16.12.25410.16.12.255
5310.16.13.0/2610.16.13.1 – 10.16.13.6210.16.13.63
5410.16.13.64/2610.16.13.65 – 10.16.13.12610.16.13.127
5510.16.13.128/2610.16.13.129 – 10.16.13.19010.16.13.191
5610.16.13.192/2610.16.13.193 – 10.16.13.25410.16.13.255
5710.16.14.0/2610.16.14.1 – 10.16.14.6210.16.14.63
5810.16.14.64/2610.16.14.65 – 10.16.14.12610.16.14.127
5910.16.14.128/2610.16.14.129 – 10.16.14.19010.16.14.191
6010.16.14.192/2610.16.14.193 – 10.16.14.25410.16.14.255
6110.16.15.0/2610.16.15.1 – 10.16.15.6210.16.15.63
6210.16.15.64/2610.16.15.65 – 10.16.15.12610.16.15.127
6310.16.15.128/2610.16.15.129 – 10.16.15.19010.16.15.191
6410.16.15.192/2610.16.15.193 – 10.16.15.25410.16.15.255
6510.16.16.0/2610.16.16.1 – 10.16.16.6210.16.16.63
6610.16.16.64/2610.16.16.65 – 10.16.16.12610.16.16.127
6710.16.16.128/2610.16.16.129 – 10.16.16.19010.16.16.191
6810.16.16.192/2610.16.16.193 – 10.16.16.25410.16.16.255
6910.16.17.0/2610.16.17.1 – 10.16.17.6210.16.17.63
7010.16.17.64/2610.16.17.65 – 10.16.17.12610.16.17.127
7110.16.17.128/2610.16.17.129 – 10.16.17.19010.16.17.191
7210.16.17.192/2610.16.17.193 – 10.16.17.25410.16.17.255
7310.16.18.0/2610.16.18.1 – 10.16.18.6210.16.18.63
7410.16.18.64/2610.16.18.65 – 10.16.18.12610.16.18.127
7510.16.18.128/2610.16.18.129 – 10.16.18.19010.16.18.191
7610.16.18.192/2610.16.18.193 – 10.16.18.25410.16.18.255
7710.16.19.0/2610.16.19.1 – 10.16.19.6210.16.19.63
7810.16.19.64/2610.16.19.65 – 10.16.19.12610.16.19.127
7910.16.19.128/2610.16.19.129 – 10.16.19.19010.16.19.191
8010.16.19.192/2610.16.19.193 – 10.16.19.25410.16.19.255
8110.16.20.0/2610.16.20.1 – 10.16.20.6210.16.20.63
8210.16.20.64/2610.16.20.65 – 10.16.20.12610.16.20.127
8310.16.20.128/2610.16.20.129 – 10.16.20.19010.16.20.191
8410.16.20.192/2610.16.20.193 – 10.16.20.25410.16.20.255
8510.16.21.0/2610.16.21.1 – 10.16.21.6210.16.21.63
8610.16.21.64/2610.16.21.65 – 10.16.21.12610.16.21.127
8710.16.21.128/2610.16.21.129 – 10.16.21.19010.16.21.191
8810.16.21.192/2610.16.21.193 – 10.16.21.25410.16.21.255
8910.16.22.0/2610.16.22.1 – 10.16.22.6210.16.22.63
9010.16.22.64/2610.16.22.65 – 10.16.22.12610.16.22.127
9110.16.22.128/2610.16.22.129 – 10.16.22.19010.16.22.191
9210.16.22.192/2610.16.22.193 – 10.16.22.25410.16.22.255
9310.16.23.0/2610.16.23.1 – 10.16.23.6210.16.23.63
9410.16.23.64/2610.16.23.65 – 10.16.23.12610.16.23.127
9510.16.23.128/2610.16.23.129 – 10.16.23.19010.16.23.191
9610.16.23.192/2610.16.23.193 – 10.16.23.25410.16.23.255
9710.16.24.0/2610.16.24.1 – 10.16.24.6210.16.24.63
9810.16.24.64/2610.16.24.65 – 10.16.24.12610.16.24.127
9910.16.24.128/2610.16.24.129 – 10.16.24.19010.16.24.191
10010.16.24.192/2610.16.24.193 – 10.16.24.25410.16.24.255
10110.16.25.0/2610.16.25.1 – 10.16.25.6210.16.25.63
10210.16.25.64/2610.16.25.65 – 10.16.25.12610.16.25.127
10310.16.25.128/2610.16.25.129 – 10.16.25.19010.16.25.191
10410.16.25.192/2610.16.25.193 – 10.16.25.25410.16.25.255
10510.16.26.0/2610.16.26.1 – 10.16.26.6210.16.26.63
10610.16.26.64/2610.16.26.65 – 10.16.26.12610.16.26.127
10710.16.26.128/2610.16.26.129 – 10.16.26.19010.16.26.191
10810.16.26.192/2610.16.26.193 – 10.16.26.25410.16.26.255
10910.16.27.0/2610.16.27.1 – 10.16.27.6210.16.27.63
11010.16.27.64/2610.16.27.65 – 10.16.27.12610.16.27.127
11110.16.27.128/2610.16.27.129 – 10.16.27.19010.16.27.191
11210.16.27.192/2610.16.27.193 – 10.16.27.25410.16.27.255
11310.16.28.0/2610.16.28.1 – 10.16.28.6210.16.28.63
11410.16.28.64/2610.16.28.65 – 10.16.28.12610.16.28.127
11510.16.28.128/2610.16.28.129 – 10.16.28.19010.16.28.191
11610.16.28.192/2610.16.28.193 – 10.16.28.25410.16.28.255
11710.16.29.0/2610.16.29.1 – 10.16.29.6210.16.29.63
11810.16.29.64/2610.16.29.65 – 10.16.29.12610.16.29.127
11910.16.29.128/2610.16.29.129 – 10.16.29.19010.16.29.191
12010.16.29.192/2610.16.29.193 – 10.16.29.25410.16.29.255
12110.16.30.0/2610.16.30.1 – 10.16.30.6210.16.30.63
12210.16.30.64/2610.16.30.65 – 10.16.30.12610.16.30.127
12310.16.30.128/2610.16.30.129 – 10.16.30.19010.16.30.191
12410.16.30.192/2610.16.30.193 – 10.16.30.25410.16.30.255
12510.16.31.0/2610.16.31.1 – 10.16.31.6210.16.31.63
12610.16.31.64/2610.16.31.65 – 10.16.31.12610.16.31.127
12710.16.31.128/2610.16.31.129 – 10.16.31.19010.16.31.191
12810.16.31.192/2610.16.31.193 – 10.16.31.25410.16.31.255
12910.16.32.0/2610.16.32.1 – 10.16.32.6210.16.32.63
13010.16.32.64/2610.16.32.65 – 10.16.32.12610.16.32.127
13110.16.32.128/2610.16.32.129 – 10.16.32.19010.16.32.191
13210.16.32.192/2610.16.32.193 – 10.16.32.25410.16.32.255
13310.16.33.0/2610.16.33.1 – 10.16.33.6210.16.33.63
13410.16.33.64/2610.16.33.65 – 10.16.33.12610.16.33.127
13510.16.33.128/2610.16.33.129 – 10.16.33.19010.16.33.191
13610.16.33.192/2610.16.33.193 – 10.16.33.25410.16.33.255
13710.16.34.0/2610.16.34.1 – 10.16.34.6210.16.34.63
13810.16.34.64/2610.16.34.65 – 10.16.34.12610.16.34.127
13910.16.34.128/2610.16.34.129 – 10.16.34.19010.16.34.191
14010.16.34.192/2610.16.34.193 – 10.16.34.25410.16.34.255
14110.16.35.0/2610.16.35.1 – 10.16.35.6210.16.35.63
14210.16.35.64/2610.16.35.65 – 10.16.35.12610.16.35.127
14310.16.35.128/2610.16.35.129 – 10.16.35.19010.16.35.191
14410.16.35.192/2610.16.35.193 – 10.16.35.25410.16.35.255
14510.16.36.0/2610.16.36.1 – 10.16.36.6210.16.36.63
14610.16.36.64/2610.16.36.65 – 10.16.36.12610.16.36.127
14710.16.36.128/2610.16.36.129 – 10.16.36.19010.16.36.191
14810.16.36.192/2610.16.36.193 – 10.16.36.25410.16.36.255
14910.16.37.0/2610.16.37.1 – 10.16.37.6210.16.37.63
15010.16.37.64/2610.16.37.65 – 10.16.37.12610.16.37.127
15110.16.37.128/2610.16.37.129 – 10.16.37.19010.16.37.191
15210.16.37.192/2610.16.37.193 – 10.16.37.25410.16.37.255
15310.16.38.0/2610.16.38.1 – 10.16.38.6210.16.38.63
15410.16.38.64/2610.16.38.65 – 10.16.38.12610.16.38.127
15510.16.38.128/2610.16.38.129 – 10.16.38.19010.16.38.191
15610.16.38.192/2610.16.38.193 – 10.16.38.25410.16.38.255
15710.16.39.0/2610.16.39.1 – 10.16.39.6210.16.39.63
15810.16.39.64/2610.16.39.65 – 10.16.39.12610.16.39.127
15910.16.39.128/2610.16.39.129 – 10.16.39.19010.16.39.191
16010.16.39.192/2610.16.39.193 – 10.16.39.25410.16.39.255
16110.16.40.0/2610.16.40.1 – 10.16.40.6210.16.40.63
16210.16.40.64/2610.16.40.65 – 10.16.40.12610.16.40.127
16310.16.40.128/2610.16.40.129 – 10.16.40.19010.16.40.191
16410.16.40.192/2610.16.40.193 – 10.16.40.25410.16.40.255
16510.16.41.0/2610.16.41.1 – 10.16.41.6210.16.41.63
16610.16.41.64/2610.16.41.65 – 10.16.41.12610.16.41.127
16710.16.41.128/2610.16.41.129 – 10.16.41.19010.16.41.191
16810.16.41.192/2610.16.41.193 – 10.16.41.25410.16.41.255
16910.16.42.0/2610.16.42.1 – 10.16.42.6210.16.42.63
17010.16.42.64/2610.16.42.65 – 10.16.42.12610.16.42.127
17110.16.42.128/2610.16.42.129 – 10.16.42.19010.16.42.191
17210.16.42.192/2610.16.42.193 – 10.16.42.25410.16.42.255
17310.16.43.0/2610.16.43.1 – 10.16.43.6210.16.43.63
17410.16.43.64/2610.16.43.65 – 10.16.43.12610.16.43.127
17510.16.43.128/2610.16.43.129 – 10.16.43.19010.16.43.191
17610.16.43.192/2610.16.43.193 – 10.16.43.25410.16.43.255
17710.16.44.0/2610.16.44.1 – 10.16.44.6210.16.44.63
17810.16.44.64/2610.16.44.65 – 10.16.44.12610.16.44.127
17910.16.44.128/2610.16.44.129 – 10.16.44.19010.16.44.191
18010.16.44.192/2610.16.44.193 – 10.16.44.25410.16.44.255
18110.16.45.0/2610.16.45.1 – 10.16.45.6210.16.45.63
18210.16.45.64/2610.16.45.65 – 10.16.45.12610.16.45.127
18310.16.45.128/2610.16.45.129 – 10.16.45.19010.16.45.191
18410.16.45.192/2610.16.45.193 – 10.16.45.25410.16.45.255
18510.16.46.0/2610.16.46.1 – 10.16.46.6210.16.46.63
18610.16.46.64/2610.16.46.65 – 10.16.46.12610.16.46.127
18710.16.46.128/2610.16.46.129 – 10.16.46.19010.16.46.191
18810.16.46.192/2610.16.46.193 – 10.16.46.25410.16.46.255
18910.16.47.0/2610.16.47.1 – 10.16.47.6210.16.47.63
19010.16.47.64/2610.16.47.65 – 10.16.47.12610.16.47.127
19110.16.47.128/2610.16.47.129 – 10.16.47.19010.16.47.191
19210.16.47.192/2610.16.47.193 – 10.16.47.25410.16.47.255
19310.16.48.0/2610.16.48.1 – 10.16.48.6210.16.48.63
19410.16.48.64/2610.16.48.65 – 10.16.48.12610.16.48.127
19510.16.48.128/2610.16.48.129 – 10.16.48.19010.16.48.191
19610.16.48.192/2610.16.48.193 – 10.16.48.25410.16.48.255
19710.16.49.0/2610.16.49.1 – 10.16.49.6210.16.49.63
19810.16.49.64/2610.16.49.65 – 10.16.49.12610.16.49.127
19910.16.49.128/2610.16.49.129 – 10.16.49.19010.16.49.191
20010.16.49.192/2610.16.49.193 – 10.16.49.25410.16.49.255
20110.16.50.0/2610.16.50.1 – 10.16.50.6210.16.50.63
20210.16.50.64/2610.16.50.65 – 10.16.50.12610.16.50.127
20310.16.50.128/2610.16.50.129 – 10.16.50.19010.16.50.191
20410.16.50.192/2610.16.50.193 – 10.16.50.25410.16.50.255
20510.16.51.0/2610.16.51.1 – 10.16.51.6210.16.51.63
20610.16.51.64/2610.16.51.65 – 10.16.51.12610.16.51.127
20710.16.51.128/2610.16.51.129 – 10.16.51.19010.16.51.191
20810.16.51.192/2610.16.51.193 – 10.16.51.25410.16.51.255
20910.16.52.0/2610.16.52.1 – 10.16.52.6210.16.52.63
21010.16.52.64/2610.16.52.65 – 10.16.52.12610.16.52.127
21110.16.52.128/2610.16.52.129 – 10.16.52.19010.16.52.191
21210.16.52.192/2610.16.52.193 – 10.16.52.25410.16.52.255
21310.16.53.0/2610.16.53.1 – 10.16.53.6210.16.53.63
21410.16.53.64/2610.16.53.65 – 10.16.53.12610.16.53.127
21510.16.53.128/2610.16.53.129 – 10.16.53.19010.16.53.191
21610.16.53.192/2610.16.53.193 – 10.16.53.25410.16.53.255
21710.16.54.0/2610.16.54.1 – 10.16.54.6210.16.54.63
21810.16.54.64/2610.16.54.65 – 10.16.54.12610.16.54.127
21910.16.54.128/2610.16.54.129 – 10.16.54.19010.16.54.191
22010.16.54.192/2610.16.54.193 – 10.16.54.25410.16.54.255
22110.16.55.0/2610.16.55.1 – 10.16.55.6210.16.55.63
22210.16.55.64/2610.16.55.65 – 10.16.55.12610.16.55.127
22310.16.55.128/2610.16.55.129 – 10.16.55.19010.16.55.191
22410.16.55.192/2610.16.55.193 – 10.16.55.25410.16.55.255
22510.16.56.0/2610.16.56.1 – 10.16.56.6210.16.56.63
22610.16.56.64/2610.16.56.65 – 10.16.56.12610.16.56.127
22710.16.56.128/2610.16.56.129 – 10.16.56.19010.16.56.191
22810.16.56.192/2610.16.56.193 – 10.16.56.25410.16.56.255
22910.16.57.0/2610.16.57.1 – 10.16.57.6210.16.57.63
23010.16.57.64/2610.16.57.65 – 10.16.57.12610.16.57.127
23110.16.57.128/2610.16.57.129 – 10.16.57.19010.16.57.191
23210.16.57.192/2610.16.57.193 – 10.16.57.25410.16.57.255
23310.16.58.0/2610.16.58.1 – 10.16.58.6210.16.58.63
23410.16.58.64/2610.16.58.65 – 10.16.58.12610.16.58.127
23510.16.58.128/2610.16.58.129 – 10.16.58.19010.16.58.191
23610.16.58.192/2610.16.58.193 – 10.16.58.25410.16.58.255
23710.16.59.0/2610.16.59.1 – 10.16.59.6210.16.59.63
23810.16.59.64/2610.16.59.65 – 10.16.59.12610.16.59.127
23910.16.59.128/2610.16.59.129 – 10.16.59.19010.16.59.191
24010.16.59.192/2610.16.59.193 – 10.16.59.25410.16.59.255
24110.16.60.0/2610.16.60.1 – 10.16.60.6210.16.60.63
24210.16.60.64/2610.16.60.65 – 10.16.60.12610.16.60.127
24310.16.60.128/2610.16.60.129 – 10.16.60.19010.16.60.191
24410.16.60.192/2610.16.60.193 – 10.16.60.25410.16.60.255
24510.16.61.0/2610.16.61.1 – 10.16.61.6210.16.61.63
24610.16.61.64/2610.16.61.65 – 10.16.61.12610.16.61.127
24710.16.61.128/2610.16.61.129 – 10.16.61.19010.16.61.191
24810.16.61.192/2610.16.61.193 – 10.16.61.25410.16.61.255
24910.16.62.0/2610.16.62.1 – 10.16.62.6210.16.62.63
25010.16.62.64/2610.16.62.65 – 10.16.62.12610.16.62.127
25110.16.62.128/2610.16.62.129 – 10.16.62.19010.16.62.191
25210.16.62.192/2610.16.62.193 – 10.16.62.25410.16.62.255
25310.16.63.0/2610.16.63.1 – 10.16.63.6210.16.63.63
25410.16.63.64/2610.16.63.65 – 10.16.63.12610.16.63.127
25510.16.63.128/2610.16.63.129 – 10.16.63.19010.16.63.191
25610.16.63.192/2610.16.63.193 – 10.16.63.25410.16.63.255
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 →