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
Try:192.168.1.10/2410.0.0.0/8172.16.5.4/20203.0.113.9/29
IPv6 calculator →
private IP (RFC 1918)10.78.0.0/16
network10.78.0.0/16
broadcast10.78.255.255
first host10.78.0.1
last host10.78.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.78.0.0/16
address00001010.01001110.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.01001110.00000000.00000000
broadcast00001010.01001110.11111111.11111111
green = network part, grey = host part
hex0x0a4e0000
decimal172883968
reverse dns0.0.78.10.in-addr.arpa
ipv4-mapped::ffff:a4e:0

/16 split into /25 · 512 subnets

close ×
#networkhost rangebroadcast
110.78.0.0/2510.78.0.1 – 10.78.0.12610.78.0.127
210.78.0.128/2510.78.0.129 – 10.78.0.25410.78.0.255
310.78.1.0/2510.78.1.1 – 10.78.1.12610.78.1.127
410.78.1.128/2510.78.1.129 – 10.78.1.25410.78.1.255
510.78.2.0/2510.78.2.1 – 10.78.2.12610.78.2.127
610.78.2.128/2510.78.2.129 – 10.78.2.25410.78.2.255
710.78.3.0/2510.78.3.1 – 10.78.3.12610.78.3.127
810.78.3.128/2510.78.3.129 – 10.78.3.25410.78.3.255
910.78.4.0/2510.78.4.1 – 10.78.4.12610.78.4.127
1010.78.4.128/2510.78.4.129 – 10.78.4.25410.78.4.255
1110.78.5.0/2510.78.5.1 – 10.78.5.12610.78.5.127
1210.78.5.128/2510.78.5.129 – 10.78.5.25410.78.5.255
1310.78.6.0/2510.78.6.1 – 10.78.6.12610.78.6.127
1410.78.6.128/2510.78.6.129 – 10.78.6.25410.78.6.255
1510.78.7.0/2510.78.7.1 – 10.78.7.12610.78.7.127
1610.78.7.128/2510.78.7.129 – 10.78.7.25410.78.7.255
1710.78.8.0/2510.78.8.1 – 10.78.8.12610.78.8.127
1810.78.8.128/2510.78.8.129 – 10.78.8.25410.78.8.255
1910.78.9.0/2510.78.9.1 – 10.78.9.12610.78.9.127
2010.78.9.128/2510.78.9.129 – 10.78.9.25410.78.9.255
2110.78.10.0/2510.78.10.1 – 10.78.10.12610.78.10.127
2210.78.10.128/2510.78.10.129 – 10.78.10.25410.78.10.255
2310.78.11.0/2510.78.11.1 – 10.78.11.12610.78.11.127
2410.78.11.128/2510.78.11.129 – 10.78.11.25410.78.11.255
2510.78.12.0/2510.78.12.1 – 10.78.12.12610.78.12.127
2610.78.12.128/2510.78.12.129 – 10.78.12.25410.78.12.255
2710.78.13.0/2510.78.13.1 – 10.78.13.12610.78.13.127
2810.78.13.128/2510.78.13.129 – 10.78.13.25410.78.13.255
2910.78.14.0/2510.78.14.1 – 10.78.14.12610.78.14.127
3010.78.14.128/2510.78.14.129 – 10.78.14.25410.78.14.255
3110.78.15.0/2510.78.15.1 – 10.78.15.12610.78.15.127
3210.78.15.128/2510.78.15.129 – 10.78.15.25410.78.15.255
3310.78.16.0/2510.78.16.1 – 10.78.16.12610.78.16.127
3410.78.16.128/2510.78.16.129 – 10.78.16.25410.78.16.255
3510.78.17.0/2510.78.17.1 – 10.78.17.12610.78.17.127
3610.78.17.128/2510.78.17.129 – 10.78.17.25410.78.17.255
3710.78.18.0/2510.78.18.1 – 10.78.18.12610.78.18.127
3810.78.18.128/2510.78.18.129 – 10.78.18.25410.78.18.255
3910.78.19.0/2510.78.19.1 – 10.78.19.12610.78.19.127
4010.78.19.128/2510.78.19.129 – 10.78.19.25410.78.19.255
4110.78.20.0/2510.78.20.1 – 10.78.20.12610.78.20.127
4210.78.20.128/2510.78.20.129 – 10.78.20.25410.78.20.255
4310.78.21.0/2510.78.21.1 – 10.78.21.12610.78.21.127
4410.78.21.128/2510.78.21.129 – 10.78.21.25410.78.21.255
4510.78.22.0/2510.78.22.1 – 10.78.22.12610.78.22.127
4610.78.22.128/2510.78.22.129 – 10.78.22.25410.78.22.255
4710.78.23.0/2510.78.23.1 – 10.78.23.12610.78.23.127
4810.78.23.128/2510.78.23.129 – 10.78.23.25410.78.23.255
4910.78.24.0/2510.78.24.1 – 10.78.24.12610.78.24.127
5010.78.24.128/2510.78.24.129 – 10.78.24.25410.78.24.255
5110.78.25.0/2510.78.25.1 – 10.78.25.12610.78.25.127
5210.78.25.128/2510.78.25.129 – 10.78.25.25410.78.25.255
5310.78.26.0/2510.78.26.1 – 10.78.26.12610.78.26.127
5410.78.26.128/2510.78.26.129 – 10.78.26.25410.78.26.255
5510.78.27.0/2510.78.27.1 – 10.78.27.12610.78.27.127
5610.78.27.128/2510.78.27.129 – 10.78.27.25410.78.27.255
5710.78.28.0/2510.78.28.1 – 10.78.28.12610.78.28.127
5810.78.28.128/2510.78.28.129 – 10.78.28.25410.78.28.255
5910.78.29.0/2510.78.29.1 – 10.78.29.12610.78.29.127
6010.78.29.128/2510.78.29.129 – 10.78.29.25410.78.29.255
6110.78.30.0/2510.78.30.1 – 10.78.30.12610.78.30.127
6210.78.30.128/2510.78.30.129 – 10.78.30.25410.78.30.255
6310.78.31.0/2510.78.31.1 – 10.78.31.12610.78.31.127
6410.78.31.128/2510.78.31.129 – 10.78.31.25410.78.31.255
6510.78.32.0/2510.78.32.1 – 10.78.32.12610.78.32.127
6610.78.32.128/2510.78.32.129 – 10.78.32.25410.78.32.255
6710.78.33.0/2510.78.33.1 – 10.78.33.12610.78.33.127
6810.78.33.128/2510.78.33.129 – 10.78.33.25410.78.33.255
6910.78.34.0/2510.78.34.1 – 10.78.34.12610.78.34.127
7010.78.34.128/2510.78.34.129 – 10.78.34.25410.78.34.255
7110.78.35.0/2510.78.35.1 – 10.78.35.12610.78.35.127
7210.78.35.128/2510.78.35.129 – 10.78.35.25410.78.35.255
7310.78.36.0/2510.78.36.1 – 10.78.36.12610.78.36.127
7410.78.36.128/2510.78.36.129 – 10.78.36.25410.78.36.255
7510.78.37.0/2510.78.37.1 – 10.78.37.12610.78.37.127
7610.78.37.128/2510.78.37.129 – 10.78.37.25410.78.37.255
7710.78.38.0/2510.78.38.1 – 10.78.38.12610.78.38.127
7810.78.38.128/2510.78.38.129 – 10.78.38.25410.78.38.255
7910.78.39.0/2510.78.39.1 – 10.78.39.12610.78.39.127
8010.78.39.128/2510.78.39.129 – 10.78.39.25410.78.39.255
8110.78.40.0/2510.78.40.1 – 10.78.40.12610.78.40.127
8210.78.40.128/2510.78.40.129 – 10.78.40.25410.78.40.255
8310.78.41.0/2510.78.41.1 – 10.78.41.12610.78.41.127
8410.78.41.128/2510.78.41.129 – 10.78.41.25410.78.41.255
8510.78.42.0/2510.78.42.1 – 10.78.42.12610.78.42.127
8610.78.42.128/2510.78.42.129 – 10.78.42.25410.78.42.255
8710.78.43.0/2510.78.43.1 – 10.78.43.12610.78.43.127
8810.78.43.128/2510.78.43.129 – 10.78.43.25410.78.43.255
8910.78.44.0/2510.78.44.1 – 10.78.44.12610.78.44.127
9010.78.44.128/2510.78.44.129 – 10.78.44.25410.78.44.255
9110.78.45.0/2510.78.45.1 – 10.78.45.12610.78.45.127
9210.78.45.128/2510.78.45.129 – 10.78.45.25410.78.45.255
9310.78.46.0/2510.78.46.1 – 10.78.46.12610.78.46.127
9410.78.46.128/2510.78.46.129 – 10.78.46.25410.78.46.255
9510.78.47.0/2510.78.47.1 – 10.78.47.12610.78.47.127
9610.78.47.128/2510.78.47.129 – 10.78.47.25410.78.47.255
9710.78.48.0/2510.78.48.1 – 10.78.48.12610.78.48.127
9810.78.48.128/2510.78.48.129 – 10.78.48.25410.78.48.255
9910.78.49.0/2510.78.49.1 – 10.78.49.12610.78.49.127
10010.78.49.128/2510.78.49.129 – 10.78.49.25410.78.49.255
10110.78.50.0/2510.78.50.1 – 10.78.50.12610.78.50.127
10210.78.50.128/2510.78.50.129 – 10.78.50.25410.78.50.255
10310.78.51.0/2510.78.51.1 – 10.78.51.12610.78.51.127
10410.78.51.128/2510.78.51.129 – 10.78.51.25410.78.51.255
10510.78.52.0/2510.78.52.1 – 10.78.52.12610.78.52.127
10610.78.52.128/2510.78.52.129 – 10.78.52.25410.78.52.255
10710.78.53.0/2510.78.53.1 – 10.78.53.12610.78.53.127
10810.78.53.128/2510.78.53.129 – 10.78.53.25410.78.53.255
10910.78.54.0/2510.78.54.1 – 10.78.54.12610.78.54.127
11010.78.54.128/2510.78.54.129 – 10.78.54.25410.78.54.255
11110.78.55.0/2510.78.55.1 – 10.78.55.12610.78.55.127
11210.78.55.128/2510.78.55.129 – 10.78.55.25410.78.55.255
11310.78.56.0/2510.78.56.1 – 10.78.56.12610.78.56.127
11410.78.56.128/2510.78.56.129 – 10.78.56.25410.78.56.255
11510.78.57.0/2510.78.57.1 – 10.78.57.12610.78.57.127
11610.78.57.128/2510.78.57.129 – 10.78.57.25410.78.57.255
11710.78.58.0/2510.78.58.1 – 10.78.58.12610.78.58.127
11810.78.58.128/2510.78.58.129 – 10.78.58.25410.78.58.255
11910.78.59.0/2510.78.59.1 – 10.78.59.12610.78.59.127
12010.78.59.128/2510.78.59.129 – 10.78.59.25410.78.59.255
12110.78.60.0/2510.78.60.1 – 10.78.60.12610.78.60.127
12210.78.60.128/2510.78.60.129 – 10.78.60.25410.78.60.255
12310.78.61.0/2510.78.61.1 – 10.78.61.12610.78.61.127
12410.78.61.128/2510.78.61.129 – 10.78.61.25410.78.61.255
12510.78.62.0/2510.78.62.1 – 10.78.62.12610.78.62.127
12610.78.62.128/2510.78.62.129 – 10.78.62.25410.78.62.255
12710.78.63.0/2510.78.63.1 – 10.78.63.12610.78.63.127
12810.78.63.128/2510.78.63.129 – 10.78.63.25410.78.63.255
12910.78.64.0/2510.78.64.1 – 10.78.64.12610.78.64.127
13010.78.64.128/2510.78.64.129 – 10.78.64.25410.78.64.255
13110.78.65.0/2510.78.65.1 – 10.78.65.12610.78.65.127
13210.78.65.128/2510.78.65.129 – 10.78.65.25410.78.65.255
13310.78.66.0/2510.78.66.1 – 10.78.66.12610.78.66.127
13410.78.66.128/2510.78.66.129 – 10.78.66.25410.78.66.255
13510.78.67.0/2510.78.67.1 – 10.78.67.12610.78.67.127
13610.78.67.128/2510.78.67.129 – 10.78.67.25410.78.67.255
13710.78.68.0/2510.78.68.1 – 10.78.68.12610.78.68.127
13810.78.68.128/2510.78.68.129 – 10.78.68.25410.78.68.255
13910.78.69.0/2510.78.69.1 – 10.78.69.12610.78.69.127
14010.78.69.128/2510.78.69.129 – 10.78.69.25410.78.69.255
14110.78.70.0/2510.78.70.1 – 10.78.70.12610.78.70.127
14210.78.70.128/2510.78.70.129 – 10.78.70.25410.78.70.255
14310.78.71.0/2510.78.71.1 – 10.78.71.12610.78.71.127
14410.78.71.128/2510.78.71.129 – 10.78.71.25410.78.71.255
14510.78.72.0/2510.78.72.1 – 10.78.72.12610.78.72.127
14610.78.72.128/2510.78.72.129 – 10.78.72.25410.78.72.255
14710.78.73.0/2510.78.73.1 – 10.78.73.12610.78.73.127
14810.78.73.128/2510.78.73.129 – 10.78.73.25410.78.73.255
14910.78.74.0/2510.78.74.1 – 10.78.74.12610.78.74.127
15010.78.74.128/2510.78.74.129 – 10.78.74.25410.78.74.255
15110.78.75.0/2510.78.75.1 – 10.78.75.12610.78.75.127
15210.78.75.128/2510.78.75.129 – 10.78.75.25410.78.75.255
15310.78.76.0/2510.78.76.1 – 10.78.76.12610.78.76.127
15410.78.76.128/2510.78.76.129 – 10.78.76.25410.78.76.255
15510.78.77.0/2510.78.77.1 – 10.78.77.12610.78.77.127
15610.78.77.128/2510.78.77.129 – 10.78.77.25410.78.77.255
15710.78.78.0/2510.78.78.1 – 10.78.78.12610.78.78.127
15810.78.78.128/2510.78.78.129 – 10.78.78.25410.78.78.255
15910.78.79.0/2510.78.79.1 – 10.78.79.12610.78.79.127
16010.78.79.128/2510.78.79.129 – 10.78.79.25410.78.79.255
16110.78.80.0/2510.78.80.1 – 10.78.80.12610.78.80.127
16210.78.80.128/2510.78.80.129 – 10.78.80.25410.78.80.255
16310.78.81.0/2510.78.81.1 – 10.78.81.12610.78.81.127
16410.78.81.128/2510.78.81.129 – 10.78.81.25410.78.81.255
16510.78.82.0/2510.78.82.1 – 10.78.82.12610.78.82.127
16610.78.82.128/2510.78.82.129 – 10.78.82.25410.78.82.255
16710.78.83.0/2510.78.83.1 – 10.78.83.12610.78.83.127
16810.78.83.128/2510.78.83.129 – 10.78.83.25410.78.83.255
16910.78.84.0/2510.78.84.1 – 10.78.84.12610.78.84.127
17010.78.84.128/2510.78.84.129 – 10.78.84.25410.78.84.255
17110.78.85.0/2510.78.85.1 – 10.78.85.12610.78.85.127
17210.78.85.128/2510.78.85.129 – 10.78.85.25410.78.85.255
17310.78.86.0/2510.78.86.1 – 10.78.86.12610.78.86.127
17410.78.86.128/2510.78.86.129 – 10.78.86.25410.78.86.255
17510.78.87.0/2510.78.87.1 – 10.78.87.12610.78.87.127
17610.78.87.128/2510.78.87.129 – 10.78.87.25410.78.87.255
17710.78.88.0/2510.78.88.1 – 10.78.88.12610.78.88.127
17810.78.88.128/2510.78.88.129 – 10.78.88.25410.78.88.255
17910.78.89.0/2510.78.89.1 – 10.78.89.12610.78.89.127
18010.78.89.128/2510.78.89.129 – 10.78.89.25410.78.89.255
18110.78.90.0/2510.78.90.1 – 10.78.90.12610.78.90.127
18210.78.90.128/2510.78.90.129 – 10.78.90.25410.78.90.255
18310.78.91.0/2510.78.91.1 – 10.78.91.12610.78.91.127
18410.78.91.128/2510.78.91.129 – 10.78.91.25410.78.91.255
18510.78.92.0/2510.78.92.1 – 10.78.92.12610.78.92.127
18610.78.92.128/2510.78.92.129 – 10.78.92.25410.78.92.255
18710.78.93.0/2510.78.93.1 – 10.78.93.12610.78.93.127
18810.78.93.128/2510.78.93.129 – 10.78.93.25410.78.93.255
18910.78.94.0/2510.78.94.1 – 10.78.94.12610.78.94.127
19010.78.94.128/2510.78.94.129 – 10.78.94.25410.78.94.255
19110.78.95.0/2510.78.95.1 – 10.78.95.12610.78.95.127
19210.78.95.128/2510.78.95.129 – 10.78.95.25410.78.95.255
19310.78.96.0/2510.78.96.1 – 10.78.96.12610.78.96.127
19410.78.96.128/2510.78.96.129 – 10.78.96.25410.78.96.255
19510.78.97.0/2510.78.97.1 – 10.78.97.12610.78.97.127
19610.78.97.128/2510.78.97.129 – 10.78.97.25410.78.97.255
19710.78.98.0/2510.78.98.1 – 10.78.98.12610.78.98.127
19810.78.98.128/2510.78.98.129 – 10.78.98.25410.78.98.255
19910.78.99.0/2510.78.99.1 – 10.78.99.12610.78.99.127
20010.78.99.128/2510.78.99.129 – 10.78.99.25410.78.99.255
20110.78.100.0/2510.78.100.1 – 10.78.100.12610.78.100.127
20210.78.100.128/2510.78.100.129 – 10.78.100.25410.78.100.255
20310.78.101.0/2510.78.101.1 – 10.78.101.12610.78.101.127
20410.78.101.128/2510.78.101.129 – 10.78.101.25410.78.101.255
20510.78.102.0/2510.78.102.1 – 10.78.102.12610.78.102.127
20610.78.102.128/2510.78.102.129 – 10.78.102.25410.78.102.255
20710.78.103.0/2510.78.103.1 – 10.78.103.12610.78.103.127
20810.78.103.128/2510.78.103.129 – 10.78.103.25410.78.103.255
20910.78.104.0/2510.78.104.1 – 10.78.104.12610.78.104.127
21010.78.104.128/2510.78.104.129 – 10.78.104.25410.78.104.255
21110.78.105.0/2510.78.105.1 – 10.78.105.12610.78.105.127
21210.78.105.128/2510.78.105.129 – 10.78.105.25410.78.105.255
21310.78.106.0/2510.78.106.1 – 10.78.106.12610.78.106.127
21410.78.106.128/2510.78.106.129 – 10.78.106.25410.78.106.255
21510.78.107.0/2510.78.107.1 – 10.78.107.12610.78.107.127
21610.78.107.128/2510.78.107.129 – 10.78.107.25410.78.107.255
21710.78.108.0/2510.78.108.1 – 10.78.108.12610.78.108.127
21810.78.108.128/2510.78.108.129 – 10.78.108.25410.78.108.255
21910.78.109.0/2510.78.109.1 – 10.78.109.12610.78.109.127
22010.78.109.128/2510.78.109.129 – 10.78.109.25410.78.109.255
22110.78.110.0/2510.78.110.1 – 10.78.110.12610.78.110.127
22210.78.110.128/2510.78.110.129 – 10.78.110.25410.78.110.255
22310.78.111.0/2510.78.111.1 – 10.78.111.12610.78.111.127
22410.78.111.128/2510.78.111.129 – 10.78.111.25410.78.111.255
22510.78.112.0/2510.78.112.1 – 10.78.112.12610.78.112.127
22610.78.112.128/2510.78.112.129 – 10.78.112.25410.78.112.255
22710.78.113.0/2510.78.113.1 – 10.78.113.12610.78.113.127
22810.78.113.128/2510.78.113.129 – 10.78.113.25410.78.113.255
22910.78.114.0/2510.78.114.1 – 10.78.114.12610.78.114.127
23010.78.114.128/2510.78.114.129 – 10.78.114.25410.78.114.255
23110.78.115.0/2510.78.115.1 – 10.78.115.12610.78.115.127
23210.78.115.128/2510.78.115.129 – 10.78.115.25410.78.115.255
23310.78.116.0/2510.78.116.1 – 10.78.116.12610.78.116.127
23410.78.116.128/2510.78.116.129 – 10.78.116.25410.78.116.255
23510.78.117.0/2510.78.117.1 – 10.78.117.12610.78.117.127
23610.78.117.128/2510.78.117.129 – 10.78.117.25410.78.117.255
23710.78.118.0/2510.78.118.1 – 10.78.118.12610.78.118.127
23810.78.118.128/2510.78.118.129 – 10.78.118.25410.78.118.255
23910.78.119.0/2510.78.119.1 – 10.78.119.12610.78.119.127
24010.78.119.128/2510.78.119.129 – 10.78.119.25410.78.119.255
24110.78.120.0/2510.78.120.1 – 10.78.120.12610.78.120.127
24210.78.120.128/2510.78.120.129 – 10.78.120.25410.78.120.255
24310.78.121.0/2510.78.121.1 – 10.78.121.12610.78.121.127
24410.78.121.128/2510.78.121.129 – 10.78.121.25410.78.121.255
24510.78.122.0/2510.78.122.1 – 10.78.122.12610.78.122.127
24610.78.122.128/2510.78.122.129 – 10.78.122.25410.78.122.255
24710.78.123.0/2510.78.123.1 – 10.78.123.12610.78.123.127
24810.78.123.128/2510.78.123.129 – 10.78.123.25410.78.123.255
24910.78.124.0/2510.78.124.1 – 10.78.124.12610.78.124.127
25010.78.124.128/2510.78.124.129 – 10.78.124.25410.78.124.255
25110.78.125.0/2510.78.125.1 – 10.78.125.12610.78.125.127
25210.78.125.128/2510.78.125.129 – 10.78.125.25410.78.125.255
25310.78.126.0/2510.78.126.1 – 10.78.126.12610.78.126.127
25410.78.126.128/2510.78.126.129 – 10.78.126.25410.78.126.255
25510.78.127.0/2510.78.127.1 – 10.78.127.12610.78.127.127
25610.78.127.128/2510.78.127.129 – 10.78.127.25410.78.127.255

showing 256 of 512

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 →