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)10.86.0.0/16
network10.86.0.0/16
broadcast10.86.255.255
first host10.86.0.1
last host10.86.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.86.0.0/16
address00001010.01010110.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.01010110.00000000.00000000
broadcast00001010.01010110.11111111.11111111
green = network part, grey = host part
hex0x0a560000
decimal173408256
reverse dns0.0.86.10.in-addr.arpa
ipv4-mapped::ffff:a56:0

/16 split into /25 · 512 subnets

close ×
#networkhost rangebroadcast
110.86.0.0/2510.86.0.1 – 10.86.0.12610.86.0.127
210.86.0.128/2510.86.0.129 – 10.86.0.25410.86.0.255
310.86.1.0/2510.86.1.1 – 10.86.1.12610.86.1.127
410.86.1.128/2510.86.1.129 – 10.86.1.25410.86.1.255
510.86.2.0/2510.86.2.1 – 10.86.2.12610.86.2.127
610.86.2.128/2510.86.2.129 – 10.86.2.25410.86.2.255
710.86.3.0/2510.86.3.1 – 10.86.3.12610.86.3.127
810.86.3.128/2510.86.3.129 – 10.86.3.25410.86.3.255
910.86.4.0/2510.86.4.1 – 10.86.4.12610.86.4.127
1010.86.4.128/2510.86.4.129 – 10.86.4.25410.86.4.255
1110.86.5.0/2510.86.5.1 – 10.86.5.12610.86.5.127
1210.86.5.128/2510.86.5.129 – 10.86.5.25410.86.5.255
1310.86.6.0/2510.86.6.1 – 10.86.6.12610.86.6.127
1410.86.6.128/2510.86.6.129 – 10.86.6.25410.86.6.255
1510.86.7.0/2510.86.7.1 – 10.86.7.12610.86.7.127
1610.86.7.128/2510.86.7.129 – 10.86.7.25410.86.7.255
1710.86.8.0/2510.86.8.1 – 10.86.8.12610.86.8.127
1810.86.8.128/2510.86.8.129 – 10.86.8.25410.86.8.255
1910.86.9.0/2510.86.9.1 – 10.86.9.12610.86.9.127
2010.86.9.128/2510.86.9.129 – 10.86.9.25410.86.9.255
2110.86.10.0/2510.86.10.1 – 10.86.10.12610.86.10.127
2210.86.10.128/2510.86.10.129 – 10.86.10.25410.86.10.255
2310.86.11.0/2510.86.11.1 – 10.86.11.12610.86.11.127
2410.86.11.128/2510.86.11.129 – 10.86.11.25410.86.11.255
2510.86.12.0/2510.86.12.1 – 10.86.12.12610.86.12.127
2610.86.12.128/2510.86.12.129 – 10.86.12.25410.86.12.255
2710.86.13.0/2510.86.13.1 – 10.86.13.12610.86.13.127
2810.86.13.128/2510.86.13.129 – 10.86.13.25410.86.13.255
2910.86.14.0/2510.86.14.1 – 10.86.14.12610.86.14.127
3010.86.14.128/2510.86.14.129 – 10.86.14.25410.86.14.255
3110.86.15.0/2510.86.15.1 – 10.86.15.12610.86.15.127
3210.86.15.128/2510.86.15.129 – 10.86.15.25410.86.15.255
3310.86.16.0/2510.86.16.1 – 10.86.16.12610.86.16.127
3410.86.16.128/2510.86.16.129 – 10.86.16.25410.86.16.255
3510.86.17.0/2510.86.17.1 – 10.86.17.12610.86.17.127
3610.86.17.128/2510.86.17.129 – 10.86.17.25410.86.17.255
3710.86.18.0/2510.86.18.1 – 10.86.18.12610.86.18.127
3810.86.18.128/2510.86.18.129 – 10.86.18.25410.86.18.255
3910.86.19.0/2510.86.19.1 – 10.86.19.12610.86.19.127
4010.86.19.128/2510.86.19.129 – 10.86.19.25410.86.19.255
4110.86.20.0/2510.86.20.1 – 10.86.20.12610.86.20.127
4210.86.20.128/2510.86.20.129 – 10.86.20.25410.86.20.255
4310.86.21.0/2510.86.21.1 – 10.86.21.12610.86.21.127
4410.86.21.128/2510.86.21.129 – 10.86.21.25410.86.21.255
4510.86.22.0/2510.86.22.1 – 10.86.22.12610.86.22.127
4610.86.22.128/2510.86.22.129 – 10.86.22.25410.86.22.255
4710.86.23.0/2510.86.23.1 – 10.86.23.12610.86.23.127
4810.86.23.128/2510.86.23.129 – 10.86.23.25410.86.23.255
4910.86.24.0/2510.86.24.1 – 10.86.24.12610.86.24.127
5010.86.24.128/2510.86.24.129 – 10.86.24.25410.86.24.255
5110.86.25.0/2510.86.25.1 – 10.86.25.12610.86.25.127
5210.86.25.128/2510.86.25.129 – 10.86.25.25410.86.25.255
5310.86.26.0/2510.86.26.1 – 10.86.26.12610.86.26.127
5410.86.26.128/2510.86.26.129 – 10.86.26.25410.86.26.255
5510.86.27.0/2510.86.27.1 – 10.86.27.12610.86.27.127
5610.86.27.128/2510.86.27.129 – 10.86.27.25410.86.27.255
5710.86.28.0/2510.86.28.1 – 10.86.28.12610.86.28.127
5810.86.28.128/2510.86.28.129 – 10.86.28.25410.86.28.255
5910.86.29.0/2510.86.29.1 – 10.86.29.12610.86.29.127
6010.86.29.128/2510.86.29.129 – 10.86.29.25410.86.29.255
6110.86.30.0/2510.86.30.1 – 10.86.30.12610.86.30.127
6210.86.30.128/2510.86.30.129 – 10.86.30.25410.86.30.255
6310.86.31.0/2510.86.31.1 – 10.86.31.12610.86.31.127
6410.86.31.128/2510.86.31.129 – 10.86.31.25410.86.31.255
6510.86.32.0/2510.86.32.1 – 10.86.32.12610.86.32.127
6610.86.32.128/2510.86.32.129 – 10.86.32.25410.86.32.255
6710.86.33.0/2510.86.33.1 – 10.86.33.12610.86.33.127
6810.86.33.128/2510.86.33.129 – 10.86.33.25410.86.33.255
6910.86.34.0/2510.86.34.1 – 10.86.34.12610.86.34.127
7010.86.34.128/2510.86.34.129 – 10.86.34.25410.86.34.255
7110.86.35.0/2510.86.35.1 – 10.86.35.12610.86.35.127
7210.86.35.128/2510.86.35.129 – 10.86.35.25410.86.35.255
7310.86.36.0/2510.86.36.1 – 10.86.36.12610.86.36.127
7410.86.36.128/2510.86.36.129 – 10.86.36.25410.86.36.255
7510.86.37.0/2510.86.37.1 – 10.86.37.12610.86.37.127
7610.86.37.128/2510.86.37.129 – 10.86.37.25410.86.37.255
7710.86.38.0/2510.86.38.1 – 10.86.38.12610.86.38.127
7810.86.38.128/2510.86.38.129 – 10.86.38.25410.86.38.255
7910.86.39.0/2510.86.39.1 – 10.86.39.12610.86.39.127
8010.86.39.128/2510.86.39.129 – 10.86.39.25410.86.39.255
8110.86.40.0/2510.86.40.1 – 10.86.40.12610.86.40.127
8210.86.40.128/2510.86.40.129 – 10.86.40.25410.86.40.255
8310.86.41.0/2510.86.41.1 – 10.86.41.12610.86.41.127
8410.86.41.128/2510.86.41.129 – 10.86.41.25410.86.41.255
8510.86.42.0/2510.86.42.1 – 10.86.42.12610.86.42.127
8610.86.42.128/2510.86.42.129 – 10.86.42.25410.86.42.255
8710.86.43.0/2510.86.43.1 – 10.86.43.12610.86.43.127
8810.86.43.128/2510.86.43.129 – 10.86.43.25410.86.43.255
8910.86.44.0/2510.86.44.1 – 10.86.44.12610.86.44.127
9010.86.44.128/2510.86.44.129 – 10.86.44.25410.86.44.255
9110.86.45.0/2510.86.45.1 – 10.86.45.12610.86.45.127
9210.86.45.128/2510.86.45.129 – 10.86.45.25410.86.45.255
9310.86.46.0/2510.86.46.1 – 10.86.46.12610.86.46.127
9410.86.46.128/2510.86.46.129 – 10.86.46.25410.86.46.255
9510.86.47.0/2510.86.47.1 – 10.86.47.12610.86.47.127
9610.86.47.128/2510.86.47.129 – 10.86.47.25410.86.47.255
9710.86.48.0/2510.86.48.1 – 10.86.48.12610.86.48.127
9810.86.48.128/2510.86.48.129 – 10.86.48.25410.86.48.255
9910.86.49.0/2510.86.49.1 – 10.86.49.12610.86.49.127
10010.86.49.128/2510.86.49.129 – 10.86.49.25410.86.49.255
10110.86.50.0/2510.86.50.1 – 10.86.50.12610.86.50.127
10210.86.50.128/2510.86.50.129 – 10.86.50.25410.86.50.255
10310.86.51.0/2510.86.51.1 – 10.86.51.12610.86.51.127
10410.86.51.128/2510.86.51.129 – 10.86.51.25410.86.51.255
10510.86.52.0/2510.86.52.1 – 10.86.52.12610.86.52.127
10610.86.52.128/2510.86.52.129 – 10.86.52.25410.86.52.255
10710.86.53.0/2510.86.53.1 – 10.86.53.12610.86.53.127
10810.86.53.128/2510.86.53.129 – 10.86.53.25410.86.53.255
10910.86.54.0/2510.86.54.1 – 10.86.54.12610.86.54.127
11010.86.54.128/2510.86.54.129 – 10.86.54.25410.86.54.255
11110.86.55.0/2510.86.55.1 – 10.86.55.12610.86.55.127
11210.86.55.128/2510.86.55.129 – 10.86.55.25410.86.55.255
11310.86.56.0/2510.86.56.1 – 10.86.56.12610.86.56.127
11410.86.56.128/2510.86.56.129 – 10.86.56.25410.86.56.255
11510.86.57.0/2510.86.57.1 – 10.86.57.12610.86.57.127
11610.86.57.128/2510.86.57.129 – 10.86.57.25410.86.57.255
11710.86.58.0/2510.86.58.1 – 10.86.58.12610.86.58.127
11810.86.58.128/2510.86.58.129 – 10.86.58.25410.86.58.255
11910.86.59.0/2510.86.59.1 – 10.86.59.12610.86.59.127
12010.86.59.128/2510.86.59.129 – 10.86.59.25410.86.59.255
12110.86.60.0/2510.86.60.1 – 10.86.60.12610.86.60.127
12210.86.60.128/2510.86.60.129 – 10.86.60.25410.86.60.255
12310.86.61.0/2510.86.61.1 – 10.86.61.12610.86.61.127
12410.86.61.128/2510.86.61.129 – 10.86.61.25410.86.61.255
12510.86.62.0/2510.86.62.1 – 10.86.62.12610.86.62.127
12610.86.62.128/2510.86.62.129 – 10.86.62.25410.86.62.255
12710.86.63.0/2510.86.63.1 – 10.86.63.12610.86.63.127
12810.86.63.128/2510.86.63.129 – 10.86.63.25410.86.63.255
12910.86.64.0/2510.86.64.1 – 10.86.64.12610.86.64.127
13010.86.64.128/2510.86.64.129 – 10.86.64.25410.86.64.255
13110.86.65.0/2510.86.65.1 – 10.86.65.12610.86.65.127
13210.86.65.128/2510.86.65.129 – 10.86.65.25410.86.65.255
13310.86.66.0/2510.86.66.1 – 10.86.66.12610.86.66.127
13410.86.66.128/2510.86.66.129 – 10.86.66.25410.86.66.255
13510.86.67.0/2510.86.67.1 – 10.86.67.12610.86.67.127
13610.86.67.128/2510.86.67.129 – 10.86.67.25410.86.67.255
13710.86.68.0/2510.86.68.1 – 10.86.68.12610.86.68.127
13810.86.68.128/2510.86.68.129 – 10.86.68.25410.86.68.255
13910.86.69.0/2510.86.69.1 – 10.86.69.12610.86.69.127
14010.86.69.128/2510.86.69.129 – 10.86.69.25410.86.69.255
14110.86.70.0/2510.86.70.1 – 10.86.70.12610.86.70.127
14210.86.70.128/2510.86.70.129 – 10.86.70.25410.86.70.255
14310.86.71.0/2510.86.71.1 – 10.86.71.12610.86.71.127
14410.86.71.128/2510.86.71.129 – 10.86.71.25410.86.71.255
14510.86.72.0/2510.86.72.1 – 10.86.72.12610.86.72.127
14610.86.72.128/2510.86.72.129 – 10.86.72.25410.86.72.255
14710.86.73.0/2510.86.73.1 – 10.86.73.12610.86.73.127
14810.86.73.128/2510.86.73.129 – 10.86.73.25410.86.73.255
14910.86.74.0/2510.86.74.1 – 10.86.74.12610.86.74.127
15010.86.74.128/2510.86.74.129 – 10.86.74.25410.86.74.255
15110.86.75.0/2510.86.75.1 – 10.86.75.12610.86.75.127
15210.86.75.128/2510.86.75.129 – 10.86.75.25410.86.75.255
15310.86.76.0/2510.86.76.1 – 10.86.76.12610.86.76.127
15410.86.76.128/2510.86.76.129 – 10.86.76.25410.86.76.255
15510.86.77.0/2510.86.77.1 – 10.86.77.12610.86.77.127
15610.86.77.128/2510.86.77.129 – 10.86.77.25410.86.77.255
15710.86.78.0/2510.86.78.1 – 10.86.78.12610.86.78.127
15810.86.78.128/2510.86.78.129 – 10.86.78.25410.86.78.255
15910.86.79.0/2510.86.79.1 – 10.86.79.12610.86.79.127
16010.86.79.128/2510.86.79.129 – 10.86.79.25410.86.79.255
16110.86.80.0/2510.86.80.1 – 10.86.80.12610.86.80.127
16210.86.80.128/2510.86.80.129 – 10.86.80.25410.86.80.255
16310.86.81.0/2510.86.81.1 – 10.86.81.12610.86.81.127
16410.86.81.128/2510.86.81.129 – 10.86.81.25410.86.81.255
16510.86.82.0/2510.86.82.1 – 10.86.82.12610.86.82.127
16610.86.82.128/2510.86.82.129 – 10.86.82.25410.86.82.255
16710.86.83.0/2510.86.83.1 – 10.86.83.12610.86.83.127
16810.86.83.128/2510.86.83.129 – 10.86.83.25410.86.83.255
16910.86.84.0/2510.86.84.1 – 10.86.84.12610.86.84.127
17010.86.84.128/2510.86.84.129 – 10.86.84.25410.86.84.255
17110.86.85.0/2510.86.85.1 – 10.86.85.12610.86.85.127
17210.86.85.128/2510.86.85.129 – 10.86.85.25410.86.85.255
17310.86.86.0/2510.86.86.1 – 10.86.86.12610.86.86.127
17410.86.86.128/2510.86.86.129 – 10.86.86.25410.86.86.255
17510.86.87.0/2510.86.87.1 – 10.86.87.12610.86.87.127
17610.86.87.128/2510.86.87.129 – 10.86.87.25410.86.87.255
17710.86.88.0/2510.86.88.1 – 10.86.88.12610.86.88.127
17810.86.88.128/2510.86.88.129 – 10.86.88.25410.86.88.255
17910.86.89.0/2510.86.89.1 – 10.86.89.12610.86.89.127
18010.86.89.128/2510.86.89.129 – 10.86.89.25410.86.89.255
18110.86.90.0/2510.86.90.1 – 10.86.90.12610.86.90.127
18210.86.90.128/2510.86.90.129 – 10.86.90.25410.86.90.255
18310.86.91.0/2510.86.91.1 – 10.86.91.12610.86.91.127
18410.86.91.128/2510.86.91.129 – 10.86.91.25410.86.91.255
18510.86.92.0/2510.86.92.1 – 10.86.92.12610.86.92.127
18610.86.92.128/2510.86.92.129 – 10.86.92.25410.86.92.255
18710.86.93.0/2510.86.93.1 – 10.86.93.12610.86.93.127
18810.86.93.128/2510.86.93.129 – 10.86.93.25410.86.93.255
18910.86.94.0/2510.86.94.1 – 10.86.94.12610.86.94.127
19010.86.94.128/2510.86.94.129 – 10.86.94.25410.86.94.255
19110.86.95.0/2510.86.95.1 – 10.86.95.12610.86.95.127
19210.86.95.128/2510.86.95.129 – 10.86.95.25410.86.95.255
19310.86.96.0/2510.86.96.1 – 10.86.96.12610.86.96.127
19410.86.96.128/2510.86.96.129 – 10.86.96.25410.86.96.255
19510.86.97.0/2510.86.97.1 – 10.86.97.12610.86.97.127
19610.86.97.128/2510.86.97.129 – 10.86.97.25410.86.97.255
19710.86.98.0/2510.86.98.1 – 10.86.98.12610.86.98.127
19810.86.98.128/2510.86.98.129 – 10.86.98.25410.86.98.255
19910.86.99.0/2510.86.99.1 – 10.86.99.12610.86.99.127
20010.86.99.128/2510.86.99.129 – 10.86.99.25410.86.99.255
20110.86.100.0/2510.86.100.1 – 10.86.100.12610.86.100.127
20210.86.100.128/2510.86.100.129 – 10.86.100.25410.86.100.255
20310.86.101.0/2510.86.101.1 – 10.86.101.12610.86.101.127
20410.86.101.128/2510.86.101.129 – 10.86.101.25410.86.101.255
20510.86.102.0/2510.86.102.1 – 10.86.102.12610.86.102.127
20610.86.102.128/2510.86.102.129 – 10.86.102.25410.86.102.255
20710.86.103.0/2510.86.103.1 – 10.86.103.12610.86.103.127
20810.86.103.128/2510.86.103.129 – 10.86.103.25410.86.103.255
20910.86.104.0/2510.86.104.1 – 10.86.104.12610.86.104.127
21010.86.104.128/2510.86.104.129 – 10.86.104.25410.86.104.255
21110.86.105.0/2510.86.105.1 – 10.86.105.12610.86.105.127
21210.86.105.128/2510.86.105.129 – 10.86.105.25410.86.105.255
21310.86.106.0/2510.86.106.1 – 10.86.106.12610.86.106.127
21410.86.106.128/2510.86.106.129 – 10.86.106.25410.86.106.255
21510.86.107.0/2510.86.107.1 – 10.86.107.12610.86.107.127
21610.86.107.128/2510.86.107.129 – 10.86.107.25410.86.107.255
21710.86.108.0/2510.86.108.1 – 10.86.108.12610.86.108.127
21810.86.108.128/2510.86.108.129 – 10.86.108.25410.86.108.255
21910.86.109.0/2510.86.109.1 – 10.86.109.12610.86.109.127
22010.86.109.128/2510.86.109.129 – 10.86.109.25410.86.109.255
22110.86.110.0/2510.86.110.1 – 10.86.110.12610.86.110.127
22210.86.110.128/2510.86.110.129 – 10.86.110.25410.86.110.255
22310.86.111.0/2510.86.111.1 – 10.86.111.12610.86.111.127
22410.86.111.128/2510.86.111.129 – 10.86.111.25410.86.111.255
22510.86.112.0/2510.86.112.1 – 10.86.112.12610.86.112.127
22610.86.112.128/2510.86.112.129 – 10.86.112.25410.86.112.255
22710.86.113.0/2510.86.113.1 – 10.86.113.12610.86.113.127
22810.86.113.128/2510.86.113.129 – 10.86.113.25410.86.113.255
22910.86.114.0/2510.86.114.1 – 10.86.114.12610.86.114.127
23010.86.114.128/2510.86.114.129 – 10.86.114.25410.86.114.255
23110.86.115.0/2510.86.115.1 – 10.86.115.12610.86.115.127
23210.86.115.128/2510.86.115.129 – 10.86.115.25410.86.115.255
23310.86.116.0/2510.86.116.1 – 10.86.116.12610.86.116.127
23410.86.116.128/2510.86.116.129 – 10.86.116.25410.86.116.255
23510.86.117.0/2510.86.117.1 – 10.86.117.12610.86.117.127
23610.86.117.128/2510.86.117.129 – 10.86.117.25410.86.117.255
23710.86.118.0/2510.86.118.1 – 10.86.118.12610.86.118.127
23810.86.118.128/2510.86.118.129 – 10.86.118.25410.86.118.255
23910.86.119.0/2510.86.119.1 – 10.86.119.12610.86.119.127
24010.86.119.128/2510.86.119.129 – 10.86.119.25410.86.119.255
24110.86.120.0/2510.86.120.1 – 10.86.120.12610.86.120.127
24210.86.120.128/2510.86.120.129 – 10.86.120.25410.86.120.255
24310.86.121.0/2510.86.121.1 – 10.86.121.12610.86.121.127
24410.86.121.128/2510.86.121.129 – 10.86.121.25410.86.121.255
24510.86.122.0/2510.86.122.1 – 10.86.122.12610.86.122.127
24610.86.122.128/2510.86.122.129 – 10.86.122.25410.86.122.255
24710.86.123.0/2510.86.123.1 – 10.86.123.12610.86.123.127
24810.86.123.128/2510.86.123.129 – 10.86.123.25410.86.123.255
24910.86.124.0/2510.86.124.1 – 10.86.124.12610.86.124.127
25010.86.124.128/2510.86.124.129 – 10.86.124.25410.86.124.255
25110.86.125.0/2510.86.125.1 – 10.86.125.12610.86.125.127
25210.86.125.128/2510.86.125.129 – 10.86.125.25410.86.125.255
25310.86.126.0/2510.86.126.1 – 10.86.126.12610.86.126.127
25410.86.126.128/2510.86.126.129 – 10.86.126.25410.86.126.255
25510.86.127.0/2510.86.127.1 – 10.86.127.12610.86.127.127
25610.86.127.128/2510.86.127.129 – 10.86.127.25410.86.127.255

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 →