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)10.191.0.0/16
network10.191.0.0/16
broadcast10.191.255.255
first host10.191.0.1
last host10.191.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.191.0.0/16
address00001010.10111111.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.10111111.00000000.00000000
broadcast00001010.10111111.11111111.11111111
green = network part, grey = host part
hex0x0abf0000
decimal180289536
reverse dns0.0.191.10.in-addr.arpa
ipv4-mapped::ffff:abf:0

/16 split into /25 · 512 subnets

close ×
#networkhost rangebroadcast
110.191.0.0/2510.191.0.1 – 10.191.0.12610.191.0.127
210.191.0.128/2510.191.0.129 – 10.191.0.25410.191.0.255
310.191.1.0/2510.191.1.1 – 10.191.1.12610.191.1.127
410.191.1.128/2510.191.1.129 – 10.191.1.25410.191.1.255
510.191.2.0/2510.191.2.1 – 10.191.2.12610.191.2.127
610.191.2.128/2510.191.2.129 – 10.191.2.25410.191.2.255
710.191.3.0/2510.191.3.1 – 10.191.3.12610.191.3.127
810.191.3.128/2510.191.3.129 – 10.191.3.25410.191.3.255
910.191.4.0/2510.191.4.1 – 10.191.4.12610.191.4.127
1010.191.4.128/2510.191.4.129 – 10.191.4.25410.191.4.255
1110.191.5.0/2510.191.5.1 – 10.191.5.12610.191.5.127
1210.191.5.128/2510.191.5.129 – 10.191.5.25410.191.5.255
1310.191.6.0/2510.191.6.1 – 10.191.6.12610.191.6.127
1410.191.6.128/2510.191.6.129 – 10.191.6.25410.191.6.255
1510.191.7.0/2510.191.7.1 – 10.191.7.12610.191.7.127
1610.191.7.128/2510.191.7.129 – 10.191.7.25410.191.7.255
1710.191.8.0/2510.191.8.1 – 10.191.8.12610.191.8.127
1810.191.8.128/2510.191.8.129 – 10.191.8.25410.191.8.255
1910.191.9.0/2510.191.9.1 – 10.191.9.12610.191.9.127
2010.191.9.128/2510.191.9.129 – 10.191.9.25410.191.9.255
2110.191.10.0/2510.191.10.1 – 10.191.10.12610.191.10.127
2210.191.10.128/2510.191.10.129 – 10.191.10.25410.191.10.255
2310.191.11.0/2510.191.11.1 – 10.191.11.12610.191.11.127
2410.191.11.128/2510.191.11.129 – 10.191.11.25410.191.11.255
2510.191.12.0/2510.191.12.1 – 10.191.12.12610.191.12.127
2610.191.12.128/2510.191.12.129 – 10.191.12.25410.191.12.255
2710.191.13.0/2510.191.13.1 – 10.191.13.12610.191.13.127
2810.191.13.128/2510.191.13.129 – 10.191.13.25410.191.13.255
2910.191.14.0/2510.191.14.1 – 10.191.14.12610.191.14.127
3010.191.14.128/2510.191.14.129 – 10.191.14.25410.191.14.255
3110.191.15.0/2510.191.15.1 – 10.191.15.12610.191.15.127
3210.191.15.128/2510.191.15.129 – 10.191.15.25410.191.15.255
3310.191.16.0/2510.191.16.1 – 10.191.16.12610.191.16.127
3410.191.16.128/2510.191.16.129 – 10.191.16.25410.191.16.255
3510.191.17.0/2510.191.17.1 – 10.191.17.12610.191.17.127
3610.191.17.128/2510.191.17.129 – 10.191.17.25410.191.17.255
3710.191.18.0/2510.191.18.1 – 10.191.18.12610.191.18.127
3810.191.18.128/2510.191.18.129 – 10.191.18.25410.191.18.255
3910.191.19.0/2510.191.19.1 – 10.191.19.12610.191.19.127
4010.191.19.128/2510.191.19.129 – 10.191.19.25410.191.19.255
4110.191.20.0/2510.191.20.1 – 10.191.20.12610.191.20.127
4210.191.20.128/2510.191.20.129 – 10.191.20.25410.191.20.255
4310.191.21.0/2510.191.21.1 – 10.191.21.12610.191.21.127
4410.191.21.128/2510.191.21.129 – 10.191.21.25410.191.21.255
4510.191.22.0/2510.191.22.1 – 10.191.22.12610.191.22.127
4610.191.22.128/2510.191.22.129 – 10.191.22.25410.191.22.255
4710.191.23.0/2510.191.23.1 – 10.191.23.12610.191.23.127
4810.191.23.128/2510.191.23.129 – 10.191.23.25410.191.23.255
4910.191.24.0/2510.191.24.1 – 10.191.24.12610.191.24.127
5010.191.24.128/2510.191.24.129 – 10.191.24.25410.191.24.255
5110.191.25.0/2510.191.25.1 – 10.191.25.12610.191.25.127
5210.191.25.128/2510.191.25.129 – 10.191.25.25410.191.25.255
5310.191.26.0/2510.191.26.1 – 10.191.26.12610.191.26.127
5410.191.26.128/2510.191.26.129 – 10.191.26.25410.191.26.255
5510.191.27.0/2510.191.27.1 – 10.191.27.12610.191.27.127
5610.191.27.128/2510.191.27.129 – 10.191.27.25410.191.27.255
5710.191.28.0/2510.191.28.1 – 10.191.28.12610.191.28.127
5810.191.28.128/2510.191.28.129 – 10.191.28.25410.191.28.255
5910.191.29.0/2510.191.29.1 – 10.191.29.12610.191.29.127
6010.191.29.128/2510.191.29.129 – 10.191.29.25410.191.29.255
6110.191.30.0/2510.191.30.1 – 10.191.30.12610.191.30.127
6210.191.30.128/2510.191.30.129 – 10.191.30.25410.191.30.255
6310.191.31.0/2510.191.31.1 – 10.191.31.12610.191.31.127
6410.191.31.128/2510.191.31.129 – 10.191.31.25410.191.31.255
6510.191.32.0/2510.191.32.1 – 10.191.32.12610.191.32.127
6610.191.32.128/2510.191.32.129 – 10.191.32.25410.191.32.255
6710.191.33.0/2510.191.33.1 – 10.191.33.12610.191.33.127
6810.191.33.128/2510.191.33.129 – 10.191.33.25410.191.33.255
6910.191.34.0/2510.191.34.1 – 10.191.34.12610.191.34.127
7010.191.34.128/2510.191.34.129 – 10.191.34.25410.191.34.255
7110.191.35.0/2510.191.35.1 – 10.191.35.12610.191.35.127
7210.191.35.128/2510.191.35.129 – 10.191.35.25410.191.35.255
7310.191.36.0/2510.191.36.1 – 10.191.36.12610.191.36.127
7410.191.36.128/2510.191.36.129 – 10.191.36.25410.191.36.255
7510.191.37.0/2510.191.37.1 – 10.191.37.12610.191.37.127
7610.191.37.128/2510.191.37.129 – 10.191.37.25410.191.37.255
7710.191.38.0/2510.191.38.1 – 10.191.38.12610.191.38.127
7810.191.38.128/2510.191.38.129 – 10.191.38.25410.191.38.255
7910.191.39.0/2510.191.39.1 – 10.191.39.12610.191.39.127
8010.191.39.128/2510.191.39.129 – 10.191.39.25410.191.39.255
8110.191.40.0/2510.191.40.1 – 10.191.40.12610.191.40.127
8210.191.40.128/2510.191.40.129 – 10.191.40.25410.191.40.255
8310.191.41.0/2510.191.41.1 – 10.191.41.12610.191.41.127
8410.191.41.128/2510.191.41.129 – 10.191.41.25410.191.41.255
8510.191.42.0/2510.191.42.1 – 10.191.42.12610.191.42.127
8610.191.42.128/2510.191.42.129 – 10.191.42.25410.191.42.255
8710.191.43.0/2510.191.43.1 – 10.191.43.12610.191.43.127
8810.191.43.128/2510.191.43.129 – 10.191.43.25410.191.43.255
8910.191.44.0/2510.191.44.1 – 10.191.44.12610.191.44.127
9010.191.44.128/2510.191.44.129 – 10.191.44.25410.191.44.255
9110.191.45.0/2510.191.45.1 – 10.191.45.12610.191.45.127
9210.191.45.128/2510.191.45.129 – 10.191.45.25410.191.45.255
9310.191.46.0/2510.191.46.1 – 10.191.46.12610.191.46.127
9410.191.46.128/2510.191.46.129 – 10.191.46.25410.191.46.255
9510.191.47.0/2510.191.47.1 – 10.191.47.12610.191.47.127
9610.191.47.128/2510.191.47.129 – 10.191.47.25410.191.47.255
9710.191.48.0/2510.191.48.1 – 10.191.48.12610.191.48.127
9810.191.48.128/2510.191.48.129 – 10.191.48.25410.191.48.255
9910.191.49.0/2510.191.49.1 – 10.191.49.12610.191.49.127
10010.191.49.128/2510.191.49.129 – 10.191.49.25410.191.49.255
10110.191.50.0/2510.191.50.1 – 10.191.50.12610.191.50.127
10210.191.50.128/2510.191.50.129 – 10.191.50.25410.191.50.255
10310.191.51.0/2510.191.51.1 – 10.191.51.12610.191.51.127
10410.191.51.128/2510.191.51.129 – 10.191.51.25410.191.51.255
10510.191.52.0/2510.191.52.1 – 10.191.52.12610.191.52.127
10610.191.52.128/2510.191.52.129 – 10.191.52.25410.191.52.255
10710.191.53.0/2510.191.53.1 – 10.191.53.12610.191.53.127
10810.191.53.128/2510.191.53.129 – 10.191.53.25410.191.53.255
10910.191.54.0/2510.191.54.1 – 10.191.54.12610.191.54.127
11010.191.54.128/2510.191.54.129 – 10.191.54.25410.191.54.255
11110.191.55.0/2510.191.55.1 – 10.191.55.12610.191.55.127
11210.191.55.128/2510.191.55.129 – 10.191.55.25410.191.55.255
11310.191.56.0/2510.191.56.1 – 10.191.56.12610.191.56.127
11410.191.56.128/2510.191.56.129 – 10.191.56.25410.191.56.255
11510.191.57.0/2510.191.57.1 – 10.191.57.12610.191.57.127
11610.191.57.128/2510.191.57.129 – 10.191.57.25410.191.57.255
11710.191.58.0/2510.191.58.1 – 10.191.58.12610.191.58.127
11810.191.58.128/2510.191.58.129 – 10.191.58.25410.191.58.255
11910.191.59.0/2510.191.59.1 – 10.191.59.12610.191.59.127
12010.191.59.128/2510.191.59.129 – 10.191.59.25410.191.59.255
12110.191.60.0/2510.191.60.1 – 10.191.60.12610.191.60.127
12210.191.60.128/2510.191.60.129 – 10.191.60.25410.191.60.255
12310.191.61.0/2510.191.61.1 – 10.191.61.12610.191.61.127
12410.191.61.128/2510.191.61.129 – 10.191.61.25410.191.61.255
12510.191.62.0/2510.191.62.1 – 10.191.62.12610.191.62.127
12610.191.62.128/2510.191.62.129 – 10.191.62.25410.191.62.255
12710.191.63.0/2510.191.63.1 – 10.191.63.12610.191.63.127
12810.191.63.128/2510.191.63.129 – 10.191.63.25410.191.63.255
12910.191.64.0/2510.191.64.1 – 10.191.64.12610.191.64.127
13010.191.64.128/2510.191.64.129 – 10.191.64.25410.191.64.255
13110.191.65.0/2510.191.65.1 – 10.191.65.12610.191.65.127
13210.191.65.128/2510.191.65.129 – 10.191.65.25410.191.65.255
13310.191.66.0/2510.191.66.1 – 10.191.66.12610.191.66.127
13410.191.66.128/2510.191.66.129 – 10.191.66.25410.191.66.255
13510.191.67.0/2510.191.67.1 – 10.191.67.12610.191.67.127
13610.191.67.128/2510.191.67.129 – 10.191.67.25410.191.67.255
13710.191.68.0/2510.191.68.1 – 10.191.68.12610.191.68.127
13810.191.68.128/2510.191.68.129 – 10.191.68.25410.191.68.255
13910.191.69.0/2510.191.69.1 – 10.191.69.12610.191.69.127
14010.191.69.128/2510.191.69.129 – 10.191.69.25410.191.69.255
14110.191.70.0/2510.191.70.1 – 10.191.70.12610.191.70.127
14210.191.70.128/2510.191.70.129 – 10.191.70.25410.191.70.255
14310.191.71.0/2510.191.71.1 – 10.191.71.12610.191.71.127
14410.191.71.128/2510.191.71.129 – 10.191.71.25410.191.71.255
14510.191.72.0/2510.191.72.1 – 10.191.72.12610.191.72.127
14610.191.72.128/2510.191.72.129 – 10.191.72.25410.191.72.255
14710.191.73.0/2510.191.73.1 – 10.191.73.12610.191.73.127
14810.191.73.128/2510.191.73.129 – 10.191.73.25410.191.73.255
14910.191.74.0/2510.191.74.1 – 10.191.74.12610.191.74.127
15010.191.74.128/2510.191.74.129 – 10.191.74.25410.191.74.255
15110.191.75.0/2510.191.75.1 – 10.191.75.12610.191.75.127
15210.191.75.128/2510.191.75.129 – 10.191.75.25410.191.75.255
15310.191.76.0/2510.191.76.1 – 10.191.76.12610.191.76.127
15410.191.76.128/2510.191.76.129 – 10.191.76.25410.191.76.255
15510.191.77.0/2510.191.77.1 – 10.191.77.12610.191.77.127
15610.191.77.128/2510.191.77.129 – 10.191.77.25410.191.77.255
15710.191.78.0/2510.191.78.1 – 10.191.78.12610.191.78.127
15810.191.78.128/2510.191.78.129 – 10.191.78.25410.191.78.255
15910.191.79.0/2510.191.79.1 – 10.191.79.12610.191.79.127
16010.191.79.128/2510.191.79.129 – 10.191.79.25410.191.79.255
16110.191.80.0/2510.191.80.1 – 10.191.80.12610.191.80.127
16210.191.80.128/2510.191.80.129 – 10.191.80.25410.191.80.255
16310.191.81.0/2510.191.81.1 – 10.191.81.12610.191.81.127
16410.191.81.128/2510.191.81.129 – 10.191.81.25410.191.81.255
16510.191.82.0/2510.191.82.1 – 10.191.82.12610.191.82.127
16610.191.82.128/2510.191.82.129 – 10.191.82.25410.191.82.255
16710.191.83.0/2510.191.83.1 – 10.191.83.12610.191.83.127
16810.191.83.128/2510.191.83.129 – 10.191.83.25410.191.83.255
16910.191.84.0/2510.191.84.1 – 10.191.84.12610.191.84.127
17010.191.84.128/2510.191.84.129 – 10.191.84.25410.191.84.255
17110.191.85.0/2510.191.85.1 – 10.191.85.12610.191.85.127
17210.191.85.128/2510.191.85.129 – 10.191.85.25410.191.85.255
17310.191.86.0/2510.191.86.1 – 10.191.86.12610.191.86.127
17410.191.86.128/2510.191.86.129 – 10.191.86.25410.191.86.255
17510.191.87.0/2510.191.87.1 – 10.191.87.12610.191.87.127
17610.191.87.128/2510.191.87.129 – 10.191.87.25410.191.87.255
17710.191.88.0/2510.191.88.1 – 10.191.88.12610.191.88.127
17810.191.88.128/2510.191.88.129 – 10.191.88.25410.191.88.255
17910.191.89.0/2510.191.89.1 – 10.191.89.12610.191.89.127
18010.191.89.128/2510.191.89.129 – 10.191.89.25410.191.89.255
18110.191.90.0/2510.191.90.1 – 10.191.90.12610.191.90.127
18210.191.90.128/2510.191.90.129 – 10.191.90.25410.191.90.255
18310.191.91.0/2510.191.91.1 – 10.191.91.12610.191.91.127
18410.191.91.128/2510.191.91.129 – 10.191.91.25410.191.91.255
18510.191.92.0/2510.191.92.1 – 10.191.92.12610.191.92.127
18610.191.92.128/2510.191.92.129 – 10.191.92.25410.191.92.255
18710.191.93.0/2510.191.93.1 – 10.191.93.12610.191.93.127
18810.191.93.128/2510.191.93.129 – 10.191.93.25410.191.93.255
18910.191.94.0/2510.191.94.1 – 10.191.94.12610.191.94.127
19010.191.94.128/2510.191.94.129 – 10.191.94.25410.191.94.255
19110.191.95.0/2510.191.95.1 – 10.191.95.12610.191.95.127
19210.191.95.128/2510.191.95.129 – 10.191.95.25410.191.95.255
19310.191.96.0/2510.191.96.1 – 10.191.96.12610.191.96.127
19410.191.96.128/2510.191.96.129 – 10.191.96.25410.191.96.255
19510.191.97.0/2510.191.97.1 – 10.191.97.12610.191.97.127
19610.191.97.128/2510.191.97.129 – 10.191.97.25410.191.97.255
19710.191.98.0/2510.191.98.1 – 10.191.98.12610.191.98.127
19810.191.98.128/2510.191.98.129 – 10.191.98.25410.191.98.255
19910.191.99.0/2510.191.99.1 – 10.191.99.12610.191.99.127
20010.191.99.128/2510.191.99.129 – 10.191.99.25410.191.99.255
20110.191.100.0/2510.191.100.1 – 10.191.100.12610.191.100.127
20210.191.100.128/2510.191.100.129 – 10.191.100.25410.191.100.255
20310.191.101.0/2510.191.101.1 – 10.191.101.12610.191.101.127
20410.191.101.128/2510.191.101.129 – 10.191.101.25410.191.101.255
20510.191.102.0/2510.191.102.1 – 10.191.102.12610.191.102.127
20610.191.102.128/2510.191.102.129 – 10.191.102.25410.191.102.255
20710.191.103.0/2510.191.103.1 – 10.191.103.12610.191.103.127
20810.191.103.128/2510.191.103.129 – 10.191.103.25410.191.103.255
20910.191.104.0/2510.191.104.1 – 10.191.104.12610.191.104.127
21010.191.104.128/2510.191.104.129 – 10.191.104.25410.191.104.255
21110.191.105.0/2510.191.105.1 – 10.191.105.12610.191.105.127
21210.191.105.128/2510.191.105.129 – 10.191.105.25410.191.105.255
21310.191.106.0/2510.191.106.1 – 10.191.106.12610.191.106.127
21410.191.106.128/2510.191.106.129 – 10.191.106.25410.191.106.255
21510.191.107.0/2510.191.107.1 – 10.191.107.12610.191.107.127
21610.191.107.128/2510.191.107.129 – 10.191.107.25410.191.107.255
21710.191.108.0/2510.191.108.1 – 10.191.108.12610.191.108.127
21810.191.108.128/2510.191.108.129 – 10.191.108.25410.191.108.255
21910.191.109.0/2510.191.109.1 – 10.191.109.12610.191.109.127
22010.191.109.128/2510.191.109.129 – 10.191.109.25410.191.109.255
22110.191.110.0/2510.191.110.1 – 10.191.110.12610.191.110.127
22210.191.110.128/2510.191.110.129 – 10.191.110.25410.191.110.255
22310.191.111.0/2510.191.111.1 – 10.191.111.12610.191.111.127
22410.191.111.128/2510.191.111.129 – 10.191.111.25410.191.111.255
22510.191.112.0/2510.191.112.1 – 10.191.112.12610.191.112.127
22610.191.112.128/2510.191.112.129 – 10.191.112.25410.191.112.255
22710.191.113.0/2510.191.113.1 – 10.191.113.12610.191.113.127
22810.191.113.128/2510.191.113.129 – 10.191.113.25410.191.113.255
22910.191.114.0/2510.191.114.1 – 10.191.114.12610.191.114.127
23010.191.114.128/2510.191.114.129 – 10.191.114.25410.191.114.255
23110.191.115.0/2510.191.115.1 – 10.191.115.12610.191.115.127
23210.191.115.128/2510.191.115.129 – 10.191.115.25410.191.115.255
23310.191.116.0/2510.191.116.1 – 10.191.116.12610.191.116.127
23410.191.116.128/2510.191.116.129 – 10.191.116.25410.191.116.255
23510.191.117.0/2510.191.117.1 – 10.191.117.12610.191.117.127
23610.191.117.128/2510.191.117.129 – 10.191.117.25410.191.117.255
23710.191.118.0/2510.191.118.1 – 10.191.118.12610.191.118.127
23810.191.118.128/2510.191.118.129 – 10.191.118.25410.191.118.255
23910.191.119.0/2510.191.119.1 – 10.191.119.12610.191.119.127
24010.191.119.128/2510.191.119.129 – 10.191.119.25410.191.119.255
24110.191.120.0/2510.191.120.1 – 10.191.120.12610.191.120.127
24210.191.120.128/2510.191.120.129 – 10.191.120.25410.191.120.255
24310.191.121.0/2510.191.121.1 – 10.191.121.12610.191.121.127
24410.191.121.128/2510.191.121.129 – 10.191.121.25410.191.121.255
24510.191.122.0/2510.191.122.1 – 10.191.122.12610.191.122.127
24610.191.122.128/2510.191.122.129 – 10.191.122.25410.191.122.255
24710.191.123.0/2510.191.123.1 – 10.191.123.12610.191.123.127
24810.191.123.128/2510.191.123.129 – 10.191.123.25410.191.123.255
24910.191.124.0/2510.191.124.1 – 10.191.124.12610.191.124.127
25010.191.124.128/2510.191.124.129 – 10.191.124.25410.191.124.255
25110.191.125.0/2510.191.125.1 – 10.191.125.12610.191.125.127
25210.191.125.128/2510.191.125.129 – 10.191.125.25410.191.125.255
25310.191.126.0/2510.191.126.1 – 10.191.126.12610.191.126.127
25410.191.126.128/2510.191.126.129 – 10.191.126.25410.191.126.255
25510.191.127.0/2510.191.127.1 – 10.191.127.12610.191.127.127
25610.191.127.128/2510.191.127.129 – 10.191.127.25410.191.127.255

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 →