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)10.85.0.0/16
network10.85.0.0/16
broadcast10.85.255.255
first host10.85.0.1
last host10.85.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.85.0.0/16
address00001010.01010101.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.01010101.00000000.00000000
broadcast00001010.01010101.11111111.11111111
green = network part, grey = host part
hex0x0a550000
decimal173342720
reverse dns0.0.85.10.in-addr.arpa
ipv4-mapped::ffff:a55:0

/16 split into /25 · 512 subnets

close ×
#networkhost rangebroadcast
110.85.0.0/2510.85.0.1 – 10.85.0.12610.85.0.127
210.85.0.128/2510.85.0.129 – 10.85.0.25410.85.0.255
310.85.1.0/2510.85.1.1 – 10.85.1.12610.85.1.127
410.85.1.128/2510.85.1.129 – 10.85.1.25410.85.1.255
510.85.2.0/2510.85.2.1 – 10.85.2.12610.85.2.127
610.85.2.128/2510.85.2.129 – 10.85.2.25410.85.2.255
710.85.3.0/2510.85.3.1 – 10.85.3.12610.85.3.127
810.85.3.128/2510.85.3.129 – 10.85.3.25410.85.3.255
910.85.4.0/2510.85.4.1 – 10.85.4.12610.85.4.127
1010.85.4.128/2510.85.4.129 – 10.85.4.25410.85.4.255
1110.85.5.0/2510.85.5.1 – 10.85.5.12610.85.5.127
1210.85.5.128/2510.85.5.129 – 10.85.5.25410.85.5.255
1310.85.6.0/2510.85.6.1 – 10.85.6.12610.85.6.127
1410.85.6.128/2510.85.6.129 – 10.85.6.25410.85.6.255
1510.85.7.0/2510.85.7.1 – 10.85.7.12610.85.7.127
1610.85.7.128/2510.85.7.129 – 10.85.7.25410.85.7.255
1710.85.8.0/2510.85.8.1 – 10.85.8.12610.85.8.127
1810.85.8.128/2510.85.8.129 – 10.85.8.25410.85.8.255
1910.85.9.0/2510.85.9.1 – 10.85.9.12610.85.9.127
2010.85.9.128/2510.85.9.129 – 10.85.9.25410.85.9.255
2110.85.10.0/2510.85.10.1 – 10.85.10.12610.85.10.127
2210.85.10.128/2510.85.10.129 – 10.85.10.25410.85.10.255
2310.85.11.0/2510.85.11.1 – 10.85.11.12610.85.11.127
2410.85.11.128/2510.85.11.129 – 10.85.11.25410.85.11.255
2510.85.12.0/2510.85.12.1 – 10.85.12.12610.85.12.127
2610.85.12.128/2510.85.12.129 – 10.85.12.25410.85.12.255
2710.85.13.0/2510.85.13.1 – 10.85.13.12610.85.13.127
2810.85.13.128/2510.85.13.129 – 10.85.13.25410.85.13.255
2910.85.14.0/2510.85.14.1 – 10.85.14.12610.85.14.127
3010.85.14.128/2510.85.14.129 – 10.85.14.25410.85.14.255
3110.85.15.0/2510.85.15.1 – 10.85.15.12610.85.15.127
3210.85.15.128/2510.85.15.129 – 10.85.15.25410.85.15.255
3310.85.16.0/2510.85.16.1 – 10.85.16.12610.85.16.127
3410.85.16.128/2510.85.16.129 – 10.85.16.25410.85.16.255
3510.85.17.0/2510.85.17.1 – 10.85.17.12610.85.17.127
3610.85.17.128/2510.85.17.129 – 10.85.17.25410.85.17.255
3710.85.18.0/2510.85.18.1 – 10.85.18.12610.85.18.127
3810.85.18.128/2510.85.18.129 – 10.85.18.25410.85.18.255
3910.85.19.0/2510.85.19.1 – 10.85.19.12610.85.19.127
4010.85.19.128/2510.85.19.129 – 10.85.19.25410.85.19.255
4110.85.20.0/2510.85.20.1 – 10.85.20.12610.85.20.127
4210.85.20.128/2510.85.20.129 – 10.85.20.25410.85.20.255
4310.85.21.0/2510.85.21.1 – 10.85.21.12610.85.21.127
4410.85.21.128/2510.85.21.129 – 10.85.21.25410.85.21.255
4510.85.22.0/2510.85.22.1 – 10.85.22.12610.85.22.127
4610.85.22.128/2510.85.22.129 – 10.85.22.25410.85.22.255
4710.85.23.0/2510.85.23.1 – 10.85.23.12610.85.23.127
4810.85.23.128/2510.85.23.129 – 10.85.23.25410.85.23.255
4910.85.24.0/2510.85.24.1 – 10.85.24.12610.85.24.127
5010.85.24.128/2510.85.24.129 – 10.85.24.25410.85.24.255
5110.85.25.0/2510.85.25.1 – 10.85.25.12610.85.25.127
5210.85.25.128/2510.85.25.129 – 10.85.25.25410.85.25.255
5310.85.26.0/2510.85.26.1 – 10.85.26.12610.85.26.127
5410.85.26.128/2510.85.26.129 – 10.85.26.25410.85.26.255
5510.85.27.0/2510.85.27.1 – 10.85.27.12610.85.27.127
5610.85.27.128/2510.85.27.129 – 10.85.27.25410.85.27.255
5710.85.28.0/2510.85.28.1 – 10.85.28.12610.85.28.127
5810.85.28.128/2510.85.28.129 – 10.85.28.25410.85.28.255
5910.85.29.0/2510.85.29.1 – 10.85.29.12610.85.29.127
6010.85.29.128/2510.85.29.129 – 10.85.29.25410.85.29.255
6110.85.30.0/2510.85.30.1 – 10.85.30.12610.85.30.127
6210.85.30.128/2510.85.30.129 – 10.85.30.25410.85.30.255
6310.85.31.0/2510.85.31.1 – 10.85.31.12610.85.31.127
6410.85.31.128/2510.85.31.129 – 10.85.31.25410.85.31.255
6510.85.32.0/2510.85.32.1 – 10.85.32.12610.85.32.127
6610.85.32.128/2510.85.32.129 – 10.85.32.25410.85.32.255
6710.85.33.0/2510.85.33.1 – 10.85.33.12610.85.33.127
6810.85.33.128/2510.85.33.129 – 10.85.33.25410.85.33.255
6910.85.34.0/2510.85.34.1 – 10.85.34.12610.85.34.127
7010.85.34.128/2510.85.34.129 – 10.85.34.25410.85.34.255
7110.85.35.0/2510.85.35.1 – 10.85.35.12610.85.35.127
7210.85.35.128/2510.85.35.129 – 10.85.35.25410.85.35.255
7310.85.36.0/2510.85.36.1 – 10.85.36.12610.85.36.127
7410.85.36.128/2510.85.36.129 – 10.85.36.25410.85.36.255
7510.85.37.0/2510.85.37.1 – 10.85.37.12610.85.37.127
7610.85.37.128/2510.85.37.129 – 10.85.37.25410.85.37.255
7710.85.38.0/2510.85.38.1 – 10.85.38.12610.85.38.127
7810.85.38.128/2510.85.38.129 – 10.85.38.25410.85.38.255
7910.85.39.0/2510.85.39.1 – 10.85.39.12610.85.39.127
8010.85.39.128/2510.85.39.129 – 10.85.39.25410.85.39.255
8110.85.40.0/2510.85.40.1 – 10.85.40.12610.85.40.127
8210.85.40.128/2510.85.40.129 – 10.85.40.25410.85.40.255
8310.85.41.0/2510.85.41.1 – 10.85.41.12610.85.41.127
8410.85.41.128/2510.85.41.129 – 10.85.41.25410.85.41.255
8510.85.42.0/2510.85.42.1 – 10.85.42.12610.85.42.127
8610.85.42.128/2510.85.42.129 – 10.85.42.25410.85.42.255
8710.85.43.0/2510.85.43.1 – 10.85.43.12610.85.43.127
8810.85.43.128/2510.85.43.129 – 10.85.43.25410.85.43.255
8910.85.44.0/2510.85.44.1 – 10.85.44.12610.85.44.127
9010.85.44.128/2510.85.44.129 – 10.85.44.25410.85.44.255
9110.85.45.0/2510.85.45.1 – 10.85.45.12610.85.45.127
9210.85.45.128/2510.85.45.129 – 10.85.45.25410.85.45.255
9310.85.46.0/2510.85.46.1 – 10.85.46.12610.85.46.127
9410.85.46.128/2510.85.46.129 – 10.85.46.25410.85.46.255
9510.85.47.0/2510.85.47.1 – 10.85.47.12610.85.47.127
9610.85.47.128/2510.85.47.129 – 10.85.47.25410.85.47.255
9710.85.48.0/2510.85.48.1 – 10.85.48.12610.85.48.127
9810.85.48.128/2510.85.48.129 – 10.85.48.25410.85.48.255
9910.85.49.0/2510.85.49.1 – 10.85.49.12610.85.49.127
10010.85.49.128/2510.85.49.129 – 10.85.49.25410.85.49.255
10110.85.50.0/2510.85.50.1 – 10.85.50.12610.85.50.127
10210.85.50.128/2510.85.50.129 – 10.85.50.25410.85.50.255
10310.85.51.0/2510.85.51.1 – 10.85.51.12610.85.51.127
10410.85.51.128/2510.85.51.129 – 10.85.51.25410.85.51.255
10510.85.52.0/2510.85.52.1 – 10.85.52.12610.85.52.127
10610.85.52.128/2510.85.52.129 – 10.85.52.25410.85.52.255
10710.85.53.0/2510.85.53.1 – 10.85.53.12610.85.53.127
10810.85.53.128/2510.85.53.129 – 10.85.53.25410.85.53.255
10910.85.54.0/2510.85.54.1 – 10.85.54.12610.85.54.127
11010.85.54.128/2510.85.54.129 – 10.85.54.25410.85.54.255
11110.85.55.0/2510.85.55.1 – 10.85.55.12610.85.55.127
11210.85.55.128/2510.85.55.129 – 10.85.55.25410.85.55.255
11310.85.56.0/2510.85.56.1 – 10.85.56.12610.85.56.127
11410.85.56.128/2510.85.56.129 – 10.85.56.25410.85.56.255
11510.85.57.0/2510.85.57.1 – 10.85.57.12610.85.57.127
11610.85.57.128/2510.85.57.129 – 10.85.57.25410.85.57.255
11710.85.58.0/2510.85.58.1 – 10.85.58.12610.85.58.127
11810.85.58.128/2510.85.58.129 – 10.85.58.25410.85.58.255
11910.85.59.0/2510.85.59.1 – 10.85.59.12610.85.59.127
12010.85.59.128/2510.85.59.129 – 10.85.59.25410.85.59.255
12110.85.60.0/2510.85.60.1 – 10.85.60.12610.85.60.127
12210.85.60.128/2510.85.60.129 – 10.85.60.25410.85.60.255
12310.85.61.0/2510.85.61.1 – 10.85.61.12610.85.61.127
12410.85.61.128/2510.85.61.129 – 10.85.61.25410.85.61.255
12510.85.62.0/2510.85.62.1 – 10.85.62.12610.85.62.127
12610.85.62.128/2510.85.62.129 – 10.85.62.25410.85.62.255
12710.85.63.0/2510.85.63.1 – 10.85.63.12610.85.63.127
12810.85.63.128/2510.85.63.129 – 10.85.63.25410.85.63.255
12910.85.64.0/2510.85.64.1 – 10.85.64.12610.85.64.127
13010.85.64.128/2510.85.64.129 – 10.85.64.25410.85.64.255
13110.85.65.0/2510.85.65.1 – 10.85.65.12610.85.65.127
13210.85.65.128/2510.85.65.129 – 10.85.65.25410.85.65.255
13310.85.66.0/2510.85.66.1 – 10.85.66.12610.85.66.127
13410.85.66.128/2510.85.66.129 – 10.85.66.25410.85.66.255
13510.85.67.0/2510.85.67.1 – 10.85.67.12610.85.67.127
13610.85.67.128/2510.85.67.129 – 10.85.67.25410.85.67.255
13710.85.68.0/2510.85.68.1 – 10.85.68.12610.85.68.127
13810.85.68.128/2510.85.68.129 – 10.85.68.25410.85.68.255
13910.85.69.0/2510.85.69.1 – 10.85.69.12610.85.69.127
14010.85.69.128/2510.85.69.129 – 10.85.69.25410.85.69.255
14110.85.70.0/2510.85.70.1 – 10.85.70.12610.85.70.127
14210.85.70.128/2510.85.70.129 – 10.85.70.25410.85.70.255
14310.85.71.0/2510.85.71.1 – 10.85.71.12610.85.71.127
14410.85.71.128/2510.85.71.129 – 10.85.71.25410.85.71.255
14510.85.72.0/2510.85.72.1 – 10.85.72.12610.85.72.127
14610.85.72.128/2510.85.72.129 – 10.85.72.25410.85.72.255
14710.85.73.0/2510.85.73.1 – 10.85.73.12610.85.73.127
14810.85.73.128/2510.85.73.129 – 10.85.73.25410.85.73.255
14910.85.74.0/2510.85.74.1 – 10.85.74.12610.85.74.127
15010.85.74.128/2510.85.74.129 – 10.85.74.25410.85.74.255
15110.85.75.0/2510.85.75.1 – 10.85.75.12610.85.75.127
15210.85.75.128/2510.85.75.129 – 10.85.75.25410.85.75.255
15310.85.76.0/2510.85.76.1 – 10.85.76.12610.85.76.127
15410.85.76.128/2510.85.76.129 – 10.85.76.25410.85.76.255
15510.85.77.0/2510.85.77.1 – 10.85.77.12610.85.77.127
15610.85.77.128/2510.85.77.129 – 10.85.77.25410.85.77.255
15710.85.78.0/2510.85.78.1 – 10.85.78.12610.85.78.127
15810.85.78.128/2510.85.78.129 – 10.85.78.25410.85.78.255
15910.85.79.0/2510.85.79.1 – 10.85.79.12610.85.79.127
16010.85.79.128/2510.85.79.129 – 10.85.79.25410.85.79.255
16110.85.80.0/2510.85.80.1 – 10.85.80.12610.85.80.127
16210.85.80.128/2510.85.80.129 – 10.85.80.25410.85.80.255
16310.85.81.0/2510.85.81.1 – 10.85.81.12610.85.81.127
16410.85.81.128/2510.85.81.129 – 10.85.81.25410.85.81.255
16510.85.82.0/2510.85.82.1 – 10.85.82.12610.85.82.127
16610.85.82.128/2510.85.82.129 – 10.85.82.25410.85.82.255
16710.85.83.0/2510.85.83.1 – 10.85.83.12610.85.83.127
16810.85.83.128/2510.85.83.129 – 10.85.83.25410.85.83.255
16910.85.84.0/2510.85.84.1 – 10.85.84.12610.85.84.127
17010.85.84.128/2510.85.84.129 – 10.85.84.25410.85.84.255
17110.85.85.0/2510.85.85.1 – 10.85.85.12610.85.85.127
17210.85.85.128/2510.85.85.129 – 10.85.85.25410.85.85.255
17310.85.86.0/2510.85.86.1 – 10.85.86.12610.85.86.127
17410.85.86.128/2510.85.86.129 – 10.85.86.25410.85.86.255
17510.85.87.0/2510.85.87.1 – 10.85.87.12610.85.87.127
17610.85.87.128/2510.85.87.129 – 10.85.87.25410.85.87.255
17710.85.88.0/2510.85.88.1 – 10.85.88.12610.85.88.127
17810.85.88.128/2510.85.88.129 – 10.85.88.25410.85.88.255
17910.85.89.0/2510.85.89.1 – 10.85.89.12610.85.89.127
18010.85.89.128/2510.85.89.129 – 10.85.89.25410.85.89.255
18110.85.90.0/2510.85.90.1 – 10.85.90.12610.85.90.127
18210.85.90.128/2510.85.90.129 – 10.85.90.25410.85.90.255
18310.85.91.0/2510.85.91.1 – 10.85.91.12610.85.91.127
18410.85.91.128/2510.85.91.129 – 10.85.91.25410.85.91.255
18510.85.92.0/2510.85.92.1 – 10.85.92.12610.85.92.127
18610.85.92.128/2510.85.92.129 – 10.85.92.25410.85.92.255
18710.85.93.0/2510.85.93.1 – 10.85.93.12610.85.93.127
18810.85.93.128/2510.85.93.129 – 10.85.93.25410.85.93.255
18910.85.94.0/2510.85.94.1 – 10.85.94.12610.85.94.127
19010.85.94.128/2510.85.94.129 – 10.85.94.25410.85.94.255
19110.85.95.0/2510.85.95.1 – 10.85.95.12610.85.95.127
19210.85.95.128/2510.85.95.129 – 10.85.95.25410.85.95.255
19310.85.96.0/2510.85.96.1 – 10.85.96.12610.85.96.127
19410.85.96.128/2510.85.96.129 – 10.85.96.25410.85.96.255
19510.85.97.0/2510.85.97.1 – 10.85.97.12610.85.97.127
19610.85.97.128/2510.85.97.129 – 10.85.97.25410.85.97.255
19710.85.98.0/2510.85.98.1 – 10.85.98.12610.85.98.127
19810.85.98.128/2510.85.98.129 – 10.85.98.25410.85.98.255
19910.85.99.0/2510.85.99.1 – 10.85.99.12610.85.99.127
20010.85.99.128/2510.85.99.129 – 10.85.99.25410.85.99.255
20110.85.100.0/2510.85.100.1 – 10.85.100.12610.85.100.127
20210.85.100.128/2510.85.100.129 – 10.85.100.25410.85.100.255
20310.85.101.0/2510.85.101.1 – 10.85.101.12610.85.101.127
20410.85.101.128/2510.85.101.129 – 10.85.101.25410.85.101.255
20510.85.102.0/2510.85.102.1 – 10.85.102.12610.85.102.127
20610.85.102.128/2510.85.102.129 – 10.85.102.25410.85.102.255
20710.85.103.0/2510.85.103.1 – 10.85.103.12610.85.103.127
20810.85.103.128/2510.85.103.129 – 10.85.103.25410.85.103.255
20910.85.104.0/2510.85.104.1 – 10.85.104.12610.85.104.127
21010.85.104.128/2510.85.104.129 – 10.85.104.25410.85.104.255
21110.85.105.0/2510.85.105.1 – 10.85.105.12610.85.105.127
21210.85.105.128/2510.85.105.129 – 10.85.105.25410.85.105.255
21310.85.106.0/2510.85.106.1 – 10.85.106.12610.85.106.127
21410.85.106.128/2510.85.106.129 – 10.85.106.25410.85.106.255
21510.85.107.0/2510.85.107.1 – 10.85.107.12610.85.107.127
21610.85.107.128/2510.85.107.129 – 10.85.107.25410.85.107.255
21710.85.108.0/2510.85.108.1 – 10.85.108.12610.85.108.127
21810.85.108.128/2510.85.108.129 – 10.85.108.25410.85.108.255
21910.85.109.0/2510.85.109.1 – 10.85.109.12610.85.109.127
22010.85.109.128/2510.85.109.129 – 10.85.109.25410.85.109.255
22110.85.110.0/2510.85.110.1 – 10.85.110.12610.85.110.127
22210.85.110.128/2510.85.110.129 – 10.85.110.25410.85.110.255
22310.85.111.0/2510.85.111.1 – 10.85.111.12610.85.111.127
22410.85.111.128/2510.85.111.129 – 10.85.111.25410.85.111.255
22510.85.112.0/2510.85.112.1 – 10.85.112.12610.85.112.127
22610.85.112.128/2510.85.112.129 – 10.85.112.25410.85.112.255
22710.85.113.0/2510.85.113.1 – 10.85.113.12610.85.113.127
22810.85.113.128/2510.85.113.129 – 10.85.113.25410.85.113.255
22910.85.114.0/2510.85.114.1 – 10.85.114.12610.85.114.127
23010.85.114.128/2510.85.114.129 – 10.85.114.25410.85.114.255
23110.85.115.0/2510.85.115.1 – 10.85.115.12610.85.115.127
23210.85.115.128/2510.85.115.129 – 10.85.115.25410.85.115.255
23310.85.116.0/2510.85.116.1 – 10.85.116.12610.85.116.127
23410.85.116.128/2510.85.116.129 – 10.85.116.25410.85.116.255
23510.85.117.0/2510.85.117.1 – 10.85.117.12610.85.117.127
23610.85.117.128/2510.85.117.129 – 10.85.117.25410.85.117.255
23710.85.118.0/2510.85.118.1 – 10.85.118.12610.85.118.127
23810.85.118.128/2510.85.118.129 – 10.85.118.25410.85.118.255
23910.85.119.0/2510.85.119.1 – 10.85.119.12610.85.119.127
24010.85.119.128/2510.85.119.129 – 10.85.119.25410.85.119.255
24110.85.120.0/2510.85.120.1 – 10.85.120.12610.85.120.127
24210.85.120.128/2510.85.120.129 – 10.85.120.25410.85.120.255
24310.85.121.0/2510.85.121.1 – 10.85.121.12610.85.121.127
24410.85.121.128/2510.85.121.129 – 10.85.121.25410.85.121.255
24510.85.122.0/2510.85.122.1 – 10.85.122.12610.85.122.127
24610.85.122.128/2510.85.122.129 – 10.85.122.25410.85.122.255
24710.85.123.0/2510.85.123.1 – 10.85.123.12610.85.123.127
24810.85.123.128/2510.85.123.129 – 10.85.123.25410.85.123.255
24910.85.124.0/2510.85.124.1 – 10.85.124.12610.85.124.127
25010.85.124.128/2510.85.124.129 – 10.85.124.25410.85.124.255
25110.85.125.0/2510.85.125.1 – 10.85.125.12610.85.125.127
25210.85.125.128/2510.85.125.129 – 10.85.125.25410.85.125.255
25310.85.126.0/2510.85.126.1 – 10.85.126.12610.85.126.127
25410.85.126.128/2510.85.126.129 – 10.85.126.25410.85.126.255
25510.85.127.0/2510.85.127.1 – 10.85.127.12610.85.127.127
25610.85.127.128/2510.85.127.129 – 10.85.127.25410.85.127.255

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 →