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)10.75.0.0/16
network10.75.0.0/16
broadcast10.75.255.255
first host10.75.0.1
last host10.75.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.75.0.0/16
address00001010.01001011.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.01001011.00000000.00000000
broadcast00001010.01001011.11111111.11111111
green = network part, grey = host part
hex0x0a4b0000
decimal172687360
reverse dns0.0.75.10.in-addr.arpa
ipv4-mapped::ffff:a4b:0

/16 split into /25 · 512 subnets

close ×
#networkhost rangebroadcast
110.75.0.0/2510.75.0.1 – 10.75.0.12610.75.0.127
210.75.0.128/2510.75.0.129 – 10.75.0.25410.75.0.255
310.75.1.0/2510.75.1.1 – 10.75.1.12610.75.1.127
410.75.1.128/2510.75.1.129 – 10.75.1.25410.75.1.255
510.75.2.0/2510.75.2.1 – 10.75.2.12610.75.2.127
610.75.2.128/2510.75.2.129 – 10.75.2.25410.75.2.255
710.75.3.0/2510.75.3.1 – 10.75.3.12610.75.3.127
810.75.3.128/2510.75.3.129 – 10.75.3.25410.75.3.255
910.75.4.0/2510.75.4.1 – 10.75.4.12610.75.4.127
1010.75.4.128/2510.75.4.129 – 10.75.4.25410.75.4.255
1110.75.5.0/2510.75.5.1 – 10.75.5.12610.75.5.127
1210.75.5.128/2510.75.5.129 – 10.75.5.25410.75.5.255
1310.75.6.0/2510.75.6.1 – 10.75.6.12610.75.6.127
1410.75.6.128/2510.75.6.129 – 10.75.6.25410.75.6.255
1510.75.7.0/2510.75.7.1 – 10.75.7.12610.75.7.127
1610.75.7.128/2510.75.7.129 – 10.75.7.25410.75.7.255
1710.75.8.0/2510.75.8.1 – 10.75.8.12610.75.8.127
1810.75.8.128/2510.75.8.129 – 10.75.8.25410.75.8.255
1910.75.9.0/2510.75.9.1 – 10.75.9.12610.75.9.127
2010.75.9.128/2510.75.9.129 – 10.75.9.25410.75.9.255
2110.75.10.0/2510.75.10.1 – 10.75.10.12610.75.10.127
2210.75.10.128/2510.75.10.129 – 10.75.10.25410.75.10.255
2310.75.11.0/2510.75.11.1 – 10.75.11.12610.75.11.127
2410.75.11.128/2510.75.11.129 – 10.75.11.25410.75.11.255
2510.75.12.0/2510.75.12.1 – 10.75.12.12610.75.12.127
2610.75.12.128/2510.75.12.129 – 10.75.12.25410.75.12.255
2710.75.13.0/2510.75.13.1 – 10.75.13.12610.75.13.127
2810.75.13.128/2510.75.13.129 – 10.75.13.25410.75.13.255
2910.75.14.0/2510.75.14.1 – 10.75.14.12610.75.14.127
3010.75.14.128/2510.75.14.129 – 10.75.14.25410.75.14.255
3110.75.15.0/2510.75.15.1 – 10.75.15.12610.75.15.127
3210.75.15.128/2510.75.15.129 – 10.75.15.25410.75.15.255
3310.75.16.0/2510.75.16.1 – 10.75.16.12610.75.16.127
3410.75.16.128/2510.75.16.129 – 10.75.16.25410.75.16.255
3510.75.17.0/2510.75.17.1 – 10.75.17.12610.75.17.127
3610.75.17.128/2510.75.17.129 – 10.75.17.25410.75.17.255
3710.75.18.0/2510.75.18.1 – 10.75.18.12610.75.18.127
3810.75.18.128/2510.75.18.129 – 10.75.18.25410.75.18.255
3910.75.19.0/2510.75.19.1 – 10.75.19.12610.75.19.127
4010.75.19.128/2510.75.19.129 – 10.75.19.25410.75.19.255
4110.75.20.0/2510.75.20.1 – 10.75.20.12610.75.20.127
4210.75.20.128/2510.75.20.129 – 10.75.20.25410.75.20.255
4310.75.21.0/2510.75.21.1 – 10.75.21.12610.75.21.127
4410.75.21.128/2510.75.21.129 – 10.75.21.25410.75.21.255
4510.75.22.0/2510.75.22.1 – 10.75.22.12610.75.22.127
4610.75.22.128/2510.75.22.129 – 10.75.22.25410.75.22.255
4710.75.23.0/2510.75.23.1 – 10.75.23.12610.75.23.127
4810.75.23.128/2510.75.23.129 – 10.75.23.25410.75.23.255
4910.75.24.0/2510.75.24.1 – 10.75.24.12610.75.24.127
5010.75.24.128/2510.75.24.129 – 10.75.24.25410.75.24.255
5110.75.25.0/2510.75.25.1 – 10.75.25.12610.75.25.127
5210.75.25.128/2510.75.25.129 – 10.75.25.25410.75.25.255
5310.75.26.0/2510.75.26.1 – 10.75.26.12610.75.26.127
5410.75.26.128/2510.75.26.129 – 10.75.26.25410.75.26.255
5510.75.27.0/2510.75.27.1 – 10.75.27.12610.75.27.127
5610.75.27.128/2510.75.27.129 – 10.75.27.25410.75.27.255
5710.75.28.0/2510.75.28.1 – 10.75.28.12610.75.28.127
5810.75.28.128/2510.75.28.129 – 10.75.28.25410.75.28.255
5910.75.29.0/2510.75.29.1 – 10.75.29.12610.75.29.127
6010.75.29.128/2510.75.29.129 – 10.75.29.25410.75.29.255
6110.75.30.0/2510.75.30.1 – 10.75.30.12610.75.30.127
6210.75.30.128/2510.75.30.129 – 10.75.30.25410.75.30.255
6310.75.31.0/2510.75.31.1 – 10.75.31.12610.75.31.127
6410.75.31.128/2510.75.31.129 – 10.75.31.25410.75.31.255
6510.75.32.0/2510.75.32.1 – 10.75.32.12610.75.32.127
6610.75.32.128/2510.75.32.129 – 10.75.32.25410.75.32.255
6710.75.33.0/2510.75.33.1 – 10.75.33.12610.75.33.127
6810.75.33.128/2510.75.33.129 – 10.75.33.25410.75.33.255
6910.75.34.0/2510.75.34.1 – 10.75.34.12610.75.34.127
7010.75.34.128/2510.75.34.129 – 10.75.34.25410.75.34.255
7110.75.35.0/2510.75.35.1 – 10.75.35.12610.75.35.127
7210.75.35.128/2510.75.35.129 – 10.75.35.25410.75.35.255
7310.75.36.0/2510.75.36.1 – 10.75.36.12610.75.36.127
7410.75.36.128/2510.75.36.129 – 10.75.36.25410.75.36.255
7510.75.37.0/2510.75.37.1 – 10.75.37.12610.75.37.127
7610.75.37.128/2510.75.37.129 – 10.75.37.25410.75.37.255
7710.75.38.0/2510.75.38.1 – 10.75.38.12610.75.38.127
7810.75.38.128/2510.75.38.129 – 10.75.38.25410.75.38.255
7910.75.39.0/2510.75.39.1 – 10.75.39.12610.75.39.127
8010.75.39.128/2510.75.39.129 – 10.75.39.25410.75.39.255
8110.75.40.0/2510.75.40.1 – 10.75.40.12610.75.40.127
8210.75.40.128/2510.75.40.129 – 10.75.40.25410.75.40.255
8310.75.41.0/2510.75.41.1 – 10.75.41.12610.75.41.127
8410.75.41.128/2510.75.41.129 – 10.75.41.25410.75.41.255
8510.75.42.0/2510.75.42.1 – 10.75.42.12610.75.42.127
8610.75.42.128/2510.75.42.129 – 10.75.42.25410.75.42.255
8710.75.43.0/2510.75.43.1 – 10.75.43.12610.75.43.127
8810.75.43.128/2510.75.43.129 – 10.75.43.25410.75.43.255
8910.75.44.0/2510.75.44.1 – 10.75.44.12610.75.44.127
9010.75.44.128/2510.75.44.129 – 10.75.44.25410.75.44.255
9110.75.45.0/2510.75.45.1 – 10.75.45.12610.75.45.127
9210.75.45.128/2510.75.45.129 – 10.75.45.25410.75.45.255
9310.75.46.0/2510.75.46.1 – 10.75.46.12610.75.46.127
9410.75.46.128/2510.75.46.129 – 10.75.46.25410.75.46.255
9510.75.47.0/2510.75.47.1 – 10.75.47.12610.75.47.127
9610.75.47.128/2510.75.47.129 – 10.75.47.25410.75.47.255
9710.75.48.0/2510.75.48.1 – 10.75.48.12610.75.48.127
9810.75.48.128/2510.75.48.129 – 10.75.48.25410.75.48.255
9910.75.49.0/2510.75.49.1 – 10.75.49.12610.75.49.127
10010.75.49.128/2510.75.49.129 – 10.75.49.25410.75.49.255
10110.75.50.0/2510.75.50.1 – 10.75.50.12610.75.50.127
10210.75.50.128/2510.75.50.129 – 10.75.50.25410.75.50.255
10310.75.51.0/2510.75.51.1 – 10.75.51.12610.75.51.127
10410.75.51.128/2510.75.51.129 – 10.75.51.25410.75.51.255
10510.75.52.0/2510.75.52.1 – 10.75.52.12610.75.52.127
10610.75.52.128/2510.75.52.129 – 10.75.52.25410.75.52.255
10710.75.53.0/2510.75.53.1 – 10.75.53.12610.75.53.127
10810.75.53.128/2510.75.53.129 – 10.75.53.25410.75.53.255
10910.75.54.0/2510.75.54.1 – 10.75.54.12610.75.54.127
11010.75.54.128/2510.75.54.129 – 10.75.54.25410.75.54.255
11110.75.55.0/2510.75.55.1 – 10.75.55.12610.75.55.127
11210.75.55.128/2510.75.55.129 – 10.75.55.25410.75.55.255
11310.75.56.0/2510.75.56.1 – 10.75.56.12610.75.56.127
11410.75.56.128/2510.75.56.129 – 10.75.56.25410.75.56.255
11510.75.57.0/2510.75.57.1 – 10.75.57.12610.75.57.127
11610.75.57.128/2510.75.57.129 – 10.75.57.25410.75.57.255
11710.75.58.0/2510.75.58.1 – 10.75.58.12610.75.58.127
11810.75.58.128/2510.75.58.129 – 10.75.58.25410.75.58.255
11910.75.59.0/2510.75.59.1 – 10.75.59.12610.75.59.127
12010.75.59.128/2510.75.59.129 – 10.75.59.25410.75.59.255
12110.75.60.0/2510.75.60.1 – 10.75.60.12610.75.60.127
12210.75.60.128/2510.75.60.129 – 10.75.60.25410.75.60.255
12310.75.61.0/2510.75.61.1 – 10.75.61.12610.75.61.127
12410.75.61.128/2510.75.61.129 – 10.75.61.25410.75.61.255
12510.75.62.0/2510.75.62.1 – 10.75.62.12610.75.62.127
12610.75.62.128/2510.75.62.129 – 10.75.62.25410.75.62.255
12710.75.63.0/2510.75.63.1 – 10.75.63.12610.75.63.127
12810.75.63.128/2510.75.63.129 – 10.75.63.25410.75.63.255
12910.75.64.0/2510.75.64.1 – 10.75.64.12610.75.64.127
13010.75.64.128/2510.75.64.129 – 10.75.64.25410.75.64.255
13110.75.65.0/2510.75.65.1 – 10.75.65.12610.75.65.127
13210.75.65.128/2510.75.65.129 – 10.75.65.25410.75.65.255
13310.75.66.0/2510.75.66.1 – 10.75.66.12610.75.66.127
13410.75.66.128/2510.75.66.129 – 10.75.66.25410.75.66.255
13510.75.67.0/2510.75.67.1 – 10.75.67.12610.75.67.127
13610.75.67.128/2510.75.67.129 – 10.75.67.25410.75.67.255
13710.75.68.0/2510.75.68.1 – 10.75.68.12610.75.68.127
13810.75.68.128/2510.75.68.129 – 10.75.68.25410.75.68.255
13910.75.69.0/2510.75.69.1 – 10.75.69.12610.75.69.127
14010.75.69.128/2510.75.69.129 – 10.75.69.25410.75.69.255
14110.75.70.0/2510.75.70.1 – 10.75.70.12610.75.70.127
14210.75.70.128/2510.75.70.129 – 10.75.70.25410.75.70.255
14310.75.71.0/2510.75.71.1 – 10.75.71.12610.75.71.127
14410.75.71.128/2510.75.71.129 – 10.75.71.25410.75.71.255
14510.75.72.0/2510.75.72.1 – 10.75.72.12610.75.72.127
14610.75.72.128/2510.75.72.129 – 10.75.72.25410.75.72.255
14710.75.73.0/2510.75.73.1 – 10.75.73.12610.75.73.127
14810.75.73.128/2510.75.73.129 – 10.75.73.25410.75.73.255
14910.75.74.0/2510.75.74.1 – 10.75.74.12610.75.74.127
15010.75.74.128/2510.75.74.129 – 10.75.74.25410.75.74.255
15110.75.75.0/2510.75.75.1 – 10.75.75.12610.75.75.127
15210.75.75.128/2510.75.75.129 – 10.75.75.25410.75.75.255
15310.75.76.0/2510.75.76.1 – 10.75.76.12610.75.76.127
15410.75.76.128/2510.75.76.129 – 10.75.76.25410.75.76.255
15510.75.77.0/2510.75.77.1 – 10.75.77.12610.75.77.127
15610.75.77.128/2510.75.77.129 – 10.75.77.25410.75.77.255
15710.75.78.0/2510.75.78.1 – 10.75.78.12610.75.78.127
15810.75.78.128/2510.75.78.129 – 10.75.78.25410.75.78.255
15910.75.79.0/2510.75.79.1 – 10.75.79.12610.75.79.127
16010.75.79.128/2510.75.79.129 – 10.75.79.25410.75.79.255
16110.75.80.0/2510.75.80.1 – 10.75.80.12610.75.80.127
16210.75.80.128/2510.75.80.129 – 10.75.80.25410.75.80.255
16310.75.81.0/2510.75.81.1 – 10.75.81.12610.75.81.127
16410.75.81.128/2510.75.81.129 – 10.75.81.25410.75.81.255
16510.75.82.0/2510.75.82.1 – 10.75.82.12610.75.82.127
16610.75.82.128/2510.75.82.129 – 10.75.82.25410.75.82.255
16710.75.83.0/2510.75.83.1 – 10.75.83.12610.75.83.127
16810.75.83.128/2510.75.83.129 – 10.75.83.25410.75.83.255
16910.75.84.0/2510.75.84.1 – 10.75.84.12610.75.84.127
17010.75.84.128/2510.75.84.129 – 10.75.84.25410.75.84.255
17110.75.85.0/2510.75.85.1 – 10.75.85.12610.75.85.127
17210.75.85.128/2510.75.85.129 – 10.75.85.25410.75.85.255
17310.75.86.0/2510.75.86.1 – 10.75.86.12610.75.86.127
17410.75.86.128/2510.75.86.129 – 10.75.86.25410.75.86.255
17510.75.87.0/2510.75.87.1 – 10.75.87.12610.75.87.127
17610.75.87.128/2510.75.87.129 – 10.75.87.25410.75.87.255
17710.75.88.0/2510.75.88.1 – 10.75.88.12610.75.88.127
17810.75.88.128/2510.75.88.129 – 10.75.88.25410.75.88.255
17910.75.89.0/2510.75.89.1 – 10.75.89.12610.75.89.127
18010.75.89.128/2510.75.89.129 – 10.75.89.25410.75.89.255
18110.75.90.0/2510.75.90.1 – 10.75.90.12610.75.90.127
18210.75.90.128/2510.75.90.129 – 10.75.90.25410.75.90.255
18310.75.91.0/2510.75.91.1 – 10.75.91.12610.75.91.127
18410.75.91.128/2510.75.91.129 – 10.75.91.25410.75.91.255
18510.75.92.0/2510.75.92.1 – 10.75.92.12610.75.92.127
18610.75.92.128/2510.75.92.129 – 10.75.92.25410.75.92.255
18710.75.93.0/2510.75.93.1 – 10.75.93.12610.75.93.127
18810.75.93.128/2510.75.93.129 – 10.75.93.25410.75.93.255
18910.75.94.0/2510.75.94.1 – 10.75.94.12610.75.94.127
19010.75.94.128/2510.75.94.129 – 10.75.94.25410.75.94.255
19110.75.95.0/2510.75.95.1 – 10.75.95.12610.75.95.127
19210.75.95.128/2510.75.95.129 – 10.75.95.25410.75.95.255
19310.75.96.0/2510.75.96.1 – 10.75.96.12610.75.96.127
19410.75.96.128/2510.75.96.129 – 10.75.96.25410.75.96.255
19510.75.97.0/2510.75.97.1 – 10.75.97.12610.75.97.127
19610.75.97.128/2510.75.97.129 – 10.75.97.25410.75.97.255
19710.75.98.0/2510.75.98.1 – 10.75.98.12610.75.98.127
19810.75.98.128/2510.75.98.129 – 10.75.98.25410.75.98.255
19910.75.99.0/2510.75.99.1 – 10.75.99.12610.75.99.127
20010.75.99.128/2510.75.99.129 – 10.75.99.25410.75.99.255
20110.75.100.0/2510.75.100.1 – 10.75.100.12610.75.100.127
20210.75.100.128/2510.75.100.129 – 10.75.100.25410.75.100.255
20310.75.101.0/2510.75.101.1 – 10.75.101.12610.75.101.127
20410.75.101.128/2510.75.101.129 – 10.75.101.25410.75.101.255
20510.75.102.0/2510.75.102.1 – 10.75.102.12610.75.102.127
20610.75.102.128/2510.75.102.129 – 10.75.102.25410.75.102.255
20710.75.103.0/2510.75.103.1 – 10.75.103.12610.75.103.127
20810.75.103.128/2510.75.103.129 – 10.75.103.25410.75.103.255
20910.75.104.0/2510.75.104.1 – 10.75.104.12610.75.104.127
21010.75.104.128/2510.75.104.129 – 10.75.104.25410.75.104.255
21110.75.105.0/2510.75.105.1 – 10.75.105.12610.75.105.127
21210.75.105.128/2510.75.105.129 – 10.75.105.25410.75.105.255
21310.75.106.0/2510.75.106.1 – 10.75.106.12610.75.106.127
21410.75.106.128/2510.75.106.129 – 10.75.106.25410.75.106.255
21510.75.107.0/2510.75.107.1 – 10.75.107.12610.75.107.127
21610.75.107.128/2510.75.107.129 – 10.75.107.25410.75.107.255
21710.75.108.0/2510.75.108.1 – 10.75.108.12610.75.108.127
21810.75.108.128/2510.75.108.129 – 10.75.108.25410.75.108.255
21910.75.109.0/2510.75.109.1 – 10.75.109.12610.75.109.127
22010.75.109.128/2510.75.109.129 – 10.75.109.25410.75.109.255
22110.75.110.0/2510.75.110.1 – 10.75.110.12610.75.110.127
22210.75.110.128/2510.75.110.129 – 10.75.110.25410.75.110.255
22310.75.111.0/2510.75.111.1 – 10.75.111.12610.75.111.127
22410.75.111.128/2510.75.111.129 – 10.75.111.25410.75.111.255
22510.75.112.0/2510.75.112.1 – 10.75.112.12610.75.112.127
22610.75.112.128/2510.75.112.129 – 10.75.112.25410.75.112.255
22710.75.113.0/2510.75.113.1 – 10.75.113.12610.75.113.127
22810.75.113.128/2510.75.113.129 – 10.75.113.25410.75.113.255
22910.75.114.0/2510.75.114.1 – 10.75.114.12610.75.114.127
23010.75.114.128/2510.75.114.129 – 10.75.114.25410.75.114.255
23110.75.115.0/2510.75.115.1 – 10.75.115.12610.75.115.127
23210.75.115.128/2510.75.115.129 – 10.75.115.25410.75.115.255
23310.75.116.0/2510.75.116.1 – 10.75.116.12610.75.116.127
23410.75.116.128/2510.75.116.129 – 10.75.116.25410.75.116.255
23510.75.117.0/2510.75.117.1 – 10.75.117.12610.75.117.127
23610.75.117.128/2510.75.117.129 – 10.75.117.25410.75.117.255
23710.75.118.0/2510.75.118.1 – 10.75.118.12610.75.118.127
23810.75.118.128/2510.75.118.129 – 10.75.118.25410.75.118.255
23910.75.119.0/2510.75.119.1 – 10.75.119.12610.75.119.127
24010.75.119.128/2510.75.119.129 – 10.75.119.25410.75.119.255
24110.75.120.0/2510.75.120.1 – 10.75.120.12610.75.120.127
24210.75.120.128/2510.75.120.129 – 10.75.120.25410.75.120.255
24310.75.121.0/2510.75.121.1 – 10.75.121.12610.75.121.127
24410.75.121.128/2510.75.121.129 – 10.75.121.25410.75.121.255
24510.75.122.0/2510.75.122.1 – 10.75.122.12610.75.122.127
24610.75.122.128/2510.75.122.129 – 10.75.122.25410.75.122.255
24710.75.123.0/2510.75.123.1 – 10.75.123.12610.75.123.127
24810.75.123.128/2510.75.123.129 – 10.75.123.25410.75.123.255
24910.75.124.0/2510.75.124.1 – 10.75.124.12610.75.124.127
25010.75.124.128/2510.75.124.129 – 10.75.124.25410.75.124.255
25110.75.125.0/2510.75.125.1 – 10.75.125.12610.75.125.127
25210.75.125.128/2510.75.125.129 – 10.75.125.25410.75.125.255
25310.75.126.0/2510.75.126.1 – 10.75.126.12610.75.126.127
25410.75.126.128/2510.75.126.129 – 10.75.126.25410.75.126.255
25510.75.127.0/2510.75.127.1 – 10.75.127.12610.75.127.127
25610.75.127.128/2510.75.127.129 – 10.75.127.25410.75.127.255

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 →