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)10.111.0.0/17
network10.111.0.0/17
broadcast10.111.127.255
first host10.111.0.1
last host10.111.127.254
subnet mask255.255.128.0
wildcard0.0.127.255
addresses32,768
usable hosts32,766
classA
ipcalc 10.111.0.0/17
address00001010.01101111.00000000.00000000
subnet mask11111111.11111111.10000000.00000000
network00001010.01101111.00000000.00000000
broadcast00001010.01101111.01111111.11111111
green = network part, grey = host part
hex0x0a6f0000
decimal175046656
reverse dns0.0.111.10.in-addr.arpa
ipv4-mapped::ffff:a6f:0

/17 split into /25 · 256 subnets

close ×
#networkhost rangebroadcast
110.111.0.0/2510.111.0.1 – 10.111.0.12610.111.0.127
210.111.0.128/2510.111.0.129 – 10.111.0.25410.111.0.255
310.111.1.0/2510.111.1.1 – 10.111.1.12610.111.1.127
410.111.1.128/2510.111.1.129 – 10.111.1.25410.111.1.255
510.111.2.0/2510.111.2.1 – 10.111.2.12610.111.2.127
610.111.2.128/2510.111.2.129 – 10.111.2.25410.111.2.255
710.111.3.0/2510.111.3.1 – 10.111.3.12610.111.3.127
810.111.3.128/2510.111.3.129 – 10.111.3.25410.111.3.255
910.111.4.0/2510.111.4.1 – 10.111.4.12610.111.4.127
1010.111.4.128/2510.111.4.129 – 10.111.4.25410.111.4.255
1110.111.5.0/2510.111.5.1 – 10.111.5.12610.111.5.127
1210.111.5.128/2510.111.5.129 – 10.111.5.25410.111.5.255
1310.111.6.0/2510.111.6.1 – 10.111.6.12610.111.6.127
1410.111.6.128/2510.111.6.129 – 10.111.6.25410.111.6.255
1510.111.7.0/2510.111.7.1 – 10.111.7.12610.111.7.127
1610.111.7.128/2510.111.7.129 – 10.111.7.25410.111.7.255
1710.111.8.0/2510.111.8.1 – 10.111.8.12610.111.8.127
1810.111.8.128/2510.111.8.129 – 10.111.8.25410.111.8.255
1910.111.9.0/2510.111.9.1 – 10.111.9.12610.111.9.127
2010.111.9.128/2510.111.9.129 – 10.111.9.25410.111.9.255
2110.111.10.0/2510.111.10.1 – 10.111.10.12610.111.10.127
2210.111.10.128/2510.111.10.129 – 10.111.10.25410.111.10.255
2310.111.11.0/2510.111.11.1 – 10.111.11.12610.111.11.127
2410.111.11.128/2510.111.11.129 – 10.111.11.25410.111.11.255
2510.111.12.0/2510.111.12.1 – 10.111.12.12610.111.12.127
2610.111.12.128/2510.111.12.129 – 10.111.12.25410.111.12.255
2710.111.13.0/2510.111.13.1 – 10.111.13.12610.111.13.127
2810.111.13.128/2510.111.13.129 – 10.111.13.25410.111.13.255
2910.111.14.0/2510.111.14.1 – 10.111.14.12610.111.14.127
3010.111.14.128/2510.111.14.129 – 10.111.14.25410.111.14.255
3110.111.15.0/2510.111.15.1 – 10.111.15.12610.111.15.127
3210.111.15.128/2510.111.15.129 – 10.111.15.25410.111.15.255
3310.111.16.0/2510.111.16.1 – 10.111.16.12610.111.16.127
3410.111.16.128/2510.111.16.129 – 10.111.16.25410.111.16.255
3510.111.17.0/2510.111.17.1 – 10.111.17.12610.111.17.127
3610.111.17.128/2510.111.17.129 – 10.111.17.25410.111.17.255
3710.111.18.0/2510.111.18.1 – 10.111.18.12610.111.18.127
3810.111.18.128/2510.111.18.129 – 10.111.18.25410.111.18.255
3910.111.19.0/2510.111.19.1 – 10.111.19.12610.111.19.127
4010.111.19.128/2510.111.19.129 – 10.111.19.25410.111.19.255
4110.111.20.0/2510.111.20.1 – 10.111.20.12610.111.20.127
4210.111.20.128/2510.111.20.129 – 10.111.20.25410.111.20.255
4310.111.21.0/2510.111.21.1 – 10.111.21.12610.111.21.127
4410.111.21.128/2510.111.21.129 – 10.111.21.25410.111.21.255
4510.111.22.0/2510.111.22.1 – 10.111.22.12610.111.22.127
4610.111.22.128/2510.111.22.129 – 10.111.22.25410.111.22.255
4710.111.23.0/2510.111.23.1 – 10.111.23.12610.111.23.127
4810.111.23.128/2510.111.23.129 – 10.111.23.25410.111.23.255
4910.111.24.0/2510.111.24.1 – 10.111.24.12610.111.24.127
5010.111.24.128/2510.111.24.129 – 10.111.24.25410.111.24.255
5110.111.25.0/2510.111.25.1 – 10.111.25.12610.111.25.127
5210.111.25.128/2510.111.25.129 – 10.111.25.25410.111.25.255
5310.111.26.0/2510.111.26.1 – 10.111.26.12610.111.26.127
5410.111.26.128/2510.111.26.129 – 10.111.26.25410.111.26.255
5510.111.27.0/2510.111.27.1 – 10.111.27.12610.111.27.127
5610.111.27.128/2510.111.27.129 – 10.111.27.25410.111.27.255
5710.111.28.0/2510.111.28.1 – 10.111.28.12610.111.28.127
5810.111.28.128/2510.111.28.129 – 10.111.28.25410.111.28.255
5910.111.29.0/2510.111.29.1 – 10.111.29.12610.111.29.127
6010.111.29.128/2510.111.29.129 – 10.111.29.25410.111.29.255
6110.111.30.0/2510.111.30.1 – 10.111.30.12610.111.30.127
6210.111.30.128/2510.111.30.129 – 10.111.30.25410.111.30.255
6310.111.31.0/2510.111.31.1 – 10.111.31.12610.111.31.127
6410.111.31.128/2510.111.31.129 – 10.111.31.25410.111.31.255
6510.111.32.0/2510.111.32.1 – 10.111.32.12610.111.32.127
6610.111.32.128/2510.111.32.129 – 10.111.32.25410.111.32.255
6710.111.33.0/2510.111.33.1 – 10.111.33.12610.111.33.127
6810.111.33.128/2510.111.33.129 – 10.111.33.25410.111.33.255
6910.111.34.0/2510.111.34.1 – 10.111.34.12610.111.34.127
7010.111.34.128/2510.111.34.129 – 10.111.34.25410.111.34.255
7110.111.35.0/2510.111.35.1 – 10.111.35.12610.111.35.127
7210.111.35.128/2510.111.35.129 – 10.111.35.25410.111.35.255
7310.111.36.0/2510.111.36.1 – 10.111.36.12610.111.36.127
7410.111.36.128/2510.111.36.129 – 10.111.36.25410.111.36.255
7510.111.37.0/2510.111.37.1 – 10.111.37.12610.111.37.127
7610.111.37.128/2510.111.37.129 – 10.111.37.25410.111.37.255
7710.111.38.0/2510.111.38.1 – 10.111.38.12610.111.38.127
7810.111.38.128/2510.111.38.129 – 10.111.38.25410.111.38.255
7910.111.39.0/2510.111.39.1 – 10.111.39.12610.111.39.127
8010.111.39.128/2510.111.39.129 – 10.111.39.25410.111.39.255
8110.111.40.0/2510.111.40.1 – 10.111.40.12610.111.40.127
8210.111.40.128/2510.111.40.129 – 10.111.40.25410.111.40.255
8310.111.41.0/2510.111.41.1 – 10.111.41.12610.111.41.127
8410.111.41.128/2510.111.41.129 – 10.111.41.25410.111.41.255
8510.111.42.0/2510.111.42.1 – 10.111.42.12610.111.42.127
8610.111.42.128/2510.111.42.129 – 10.111.42.25410.111.42.255
8710.111.43.0/2510.111.43.1 – 10.111.43.12610.111.43.127
8810.111.43.128/2510.111.43.129 – 10.111.43.25410.111.43.255
8910.111.44.0/2510.111.44.1 – 10.111.44.12610.111.44.127
9010.111.44.128/2510.111.44.129 – 10.111.44.25410.111.44.255
9110.111.45.0/2510.111.45.1 – 10.111.45.12610.111.45.127
9210.111.45.128/2510.111.45.129 – 10.111.45.25410.111.45.255
9310.111.46.0/2510.111.46.1 – 10.111.46.12610.111.46.127
9410.111.46.128/2510.111.46.129 – 10.111.46.25410.111.46.255
9510.111.47.0/2510.111.47.1 – 10.111.47.12610.111.47.127
9610.111.47.128/2510.111.47.129 – 10.111.47.25410.111.47.255
9710.111.48.0/2510.111.48.1 – 10.111.48.12610.111.48.127
9810.111.48.128/2510.111.48.129 – 10.111.48.25410.111.48.255
9910.111.49.0/2510.111.49.1 – 10.111.49.12610.111.49.127
10010.111.49.128/2510.111.49.129 – 10.111.49.25410.111.49.255
10110.111.50.0/2510.111.50.1 – 10.111.50.12610.111.50.127
10210.111.50.128/2510.111.50.129 – 10.111.50.25410.111.50.255
10310.111.51.0/2510.111.51.1 – 10.111.51.12610.111.51.127
10410.111.51.128/2510.111.51.129 – 10.111.51.25410.111.51.255
10510.111.52.0/2510.111.52.1 – 10.111.52.12610.111.52.127
10610.111.52.128/2510.111.52.129 – 10.111.52.25410.111.52.255
10710.111.53.0/2510.111.53.1 – 10.111.53.12610.111.53.127
10810.111.53.128/2510.111.53.129 – 10.111.53.25410.111.53.255
10910.111.54.0/2510.111.54.1 – 10.111.54.12610.111.54.127
11010.111.54.128/2510.111.54.129 – 10.111.54.25410.111.54.255
11110.111.55.0/2510.111.55.1 – 10.111.55.12610.111.55.127
11210.111.55.128/2510.111.55.129 – 10.111.55.25410.111.55.255
11310.111.56.0/2510.111.56.1 – 10.111.56.12610.111.56.127
11410.111.56.128/2510.111.56.129 – 10.111.56.25410.111.56.255
11510.111.57.0/2510.111.57.1 – 10.111.57.12610.111.57.127
11610.111.57.128/2510.111.57.129 – 10.111.57.25410.111.57.255
11710.111.58.0/2510.111.58.1 – 10.111.58.12610.111.58.127
11810.111.58.128/2510.111.58.129 – 10.111.58.25410.111.58.255
11910.111.59.0/2510.111.59.1 – 10.111.59.12610.111.59.127
12010.111.59.128/2510.111.59.129 – 10.111.59.25410.111.59.255
12110.111.60.0/2510.111.60.1 – 10.111.60.12610.111.60.127
12210.111.60.128/2510.111.60.129 – 10.111.60.25410.111.60.255
12310.111.61.0/2510.111.61.1 – 10.111.61.12610.111.61.127
12410.111.61.128/2510.111.61.129 – 10.111.61.25410.111.61.255
12510.111.62.0/2510.111.62.1 – 10.111.62.12610.111.62.127
12610.111.62.128/2510.111.62.129 – 10.111.62.25410.111.62.255
12710.111.63.0/2510.111.63.1 – 10.111.63.12610.111.63.127
12810.111.63.128/2510.111.63.129 – 10.111.63.25410.111.63.255
12910.111.64.0/2510.111.64.1 – 10.111.64.12610.111.64.127
13010.111.64.128/2510.111.64.129 – 10.111.64.25410.111.64.255
13110.111.65.0/2510.111.65.1 – 10.111.65.12610.111.65.127
13210.111.65.128/2510.111.65.129 – 10.111.65.25410.111.65.255
13310.111.66.0/2510.111.66.1 – 10.111.66.12610.111.66.127
13410.111.66.128/2510.111.66.129 – 10.111.66.25410.111.66.255
13510.111.67.0/2510.111.67.1 – 10.111.67.12610.111.67.127
13610.111.67.128/2510.111.67.129 – 10.111.67.25410.111.67.255
13710.111.68.0/2510.111.68.1 – 10.111.68.12610.111.68.127
13810.111.68.128/2510.111.68.129 – 10.111.68.25410.111.68.255
13910.111.69.0/2510.111.69.1 – 10.111.69.12610.111.69.127
14010.111.69.128/2510.111.69.129 – 10.111.69.25410.111.69.255
14110.111.70.0/2510.111.70.1 – 10.111.70.12610.111.70.127
14210.111.70.128/2510.111.70.129 – 10.111.70.25410.111.70.255
14310.111.71.0/2510.111.71.1 – 10.111.71.12610.111.71.127
14410.111.71.128/2510.111.71.129 – 10.111.71.25410.111.71.255
14510.111.72.0/2510.111.72.1 – 10.111.72.12610.111.72.127
14610.111.72.128/2510.111.72.129 – 10.111.72.25410.111.72.255
14710.111.73.0/2510.111.73.1 – 10.111.73.12610.111.73.127
14810.111.73.128/2510.111.73.129 – 10.111.73.25410.111.73.255
14910.111.74.0/2510.111.74.1 – 10.111.74.12610.111.74.127
15010.111.74.128/2510.111.74.129 – 10.111.74.25410.111.74.255
15110.111.75.0/2510.111.75.1 – 10.111.75.12610.111.75.127
15210.111.75.128/2510.111.75.129 – 10.111.75.25410.111.75.255
15310.111.76.0/2510.111.76.1 – 10.111.76.12610.111.76.127
15410.111.76.128/2510.111.76.129 – 10.111.76.25410.111.76.255
15510.111.77.0/2510.111.77.1 – 10.111.77.12610.111.77.127
15610.111.77.128/2510.111.77.129 – 10.111.77.25410.111.77.255
15710.111.78.0/2510.111.78.1 – 10.111.78.12610.111.78.127
15810.111.78.128/2510.111.78.129 – 10.111.78.25410.111.78.255
15910.111.79.0/2510.111.79.1 – 10.111.79.12610.111.79.127
16010.111.79.128/2510.111.79.129 – 10.111.79.25410.111.79.255
16110.111.80.0/2510.111.80.1 – 10.111.80.12610.111.80.127
16210.111.80.128/2510.111.80.129 – 10.111.80.25410.111.80.255
16310.111.81.0/2510.111.81.1 – 10.111.81.12610.111.81.127
16410.111.81.128/2510.111.81.129 – 10.111.81.25410.111.81.255
16510.111.82.0/2510.111.82.1 – 10.111.82.12610.111.82.127
16610.111.82.128/2510.111.82.129 – 10.111.82.25410.111.82.255
16710.111.83.0/2510.111.83.1 – 10.111.83.12610.111.83.127
16810.111.83.128/2510.111.83.129 – 10.111.83.25410.111.83.255
16910.111.84.0/2510.111.84.1 – 10.111.84.12610.111.84.127
17010.111.84.128/2510.111.84.129 – 10.111.84.25410.111.84.255
17110.111.85.0/2510.111.85.1 – 10.111.85.12610.111.85.127
17210.111.85.128/2510.111.85.129 – 10.111.85.25410.111.85.255
17310.111.86.0/2510.111.86.1 – 10.111.86.12610.111.86.127
17410.111.86.128/2510.111.86.129 – 10.111.86.25410.111.86.255
17510.111.87.0/2510.111.87.1 – 10.111.87.12610.111.87.127
17610.111.87.128/2510.111.87.129 – 10.111.87.25410.111.87.255
17710.111.88.0/2510.111.88.1 – 10.111.88.12610.111.88.127
17810.111.88.128/2510.111.88.129 – 10.111.88.25410.111.88.255
17910.111.89.0/2510.111.89.1 – 10.111.89.12610.111.89.127
18010.111.89.128/2510.111.89.129 – 10.111.89.25410.111.89.255
18110.111.90.0/2510.111.90.1 – 10.111.90.12610.111.90.127
18210.111.90.128/2510.111.90.129 – 10.111.90.25410.111.90.255
18310.111.91.0/2510.111.91.1 – 10.111.91.12610.111.91.127
18410.111.91.128/2510.111.91.129 – 10.111.91.25410.111.91.255
18510.111.92.0/2510.111.92.1 – 10.111.92.12610.111.92.127
18610.111.92.128/2510.111.92.129 – 10.111.92.25410.111.92.255
18710.111.93.0/2510.111.93.1 – 10.111.93.12610.111.93.127
18810.111.93.128/2510.111.93.129 – 10.111.93.25410.111.93.255
18910.111.94.0/2510.111.94.1 – 10.111.94.12610.111.94.127
19010.111.94.128/2510.111.94.129 – 10.111.94.25410.111.94.255
19110.111.95.0/2510.111.95.1 – 10.111.95.12610.111.95.127
19210.111.95.128/2510.111.95.129 – 10.111.95.25410.111.95.255
19310.111.96.0/2510.111.96.1 – 10.111.96.12610.111.96.127
19410.111.96.128/2510.111.96.129 – 10.111.96.25410.111.96.255
19510.111.97.0/2510.111.97.1 – 10.111.97.12610.111.97.127
19610.111.97.128/2510.111.97.129 – 10.111.97.25410.111.97.255
19710.111.98.0/2510.111.98.1 – 10.111.98.12610.111.98.127
19810.111.98.128/2510.111.98.129 – 10.111.98.25410.111.98.255
19910.111.99.0/2510.111.99.1 – 10.111.99.12610.111.99.127
20010.111.99.128/2510.111.99.129 – 10.111.99.25410.111.99.255
20110.111.100.0/2510.111.100.1 – 10.111.100.12610.111.100.127
20210.111.100.128/2510.111.100.129 – 10.111.100.25410.111.100.255
20310.111.101.0/2510.111.101.1 – 10.111.101.12610.111.101.127
20410.111.101.128/2510.111.101.129 – 10.111.101.25410.111.101.255
20510.111.102.0/2510.111.102.1 – 10.111.102.12610.111.102.127
20610.111.102.128/2510.111.102.129 – 10.111.102.25410.111.102.255
20710.111.103.0/2510.111.103.1 – 10.111.103.12610.111.103.127
20810.111.103.128/2510.111.103.129 – 10.111.103.25410.111.103.255
20910.111.104.0/2510.111.104.1 – 10.111.104.12610.111.104.127
21010.111.104.128/2510.111.104.129 – 10.111.104.25410.111.104.255
21110.111.105.0/2510.111.105.1 – 10.111.105.12610.111.105.127
21210.111.105.128/2510.111.105.129 – 10.111.105.25410.111.105.255
21310.111.106.0/2510.111.106.1 – 10.111.106.12610.111.106.127
21410.111.106.128/2510.111.106.129 – 10.111.106.25410.111.106.255
21510.111.107.0/2510.111.107.1 – 10.111.107.12610.111.107.127
21610.111.107.128/2510.111.107.129 – 10.111.107.25410.111.107.255
21710.111.108.0/2510.111.108.1 – 10.111.108.12610.111.108.127
21810.111.108.128/2510.111.108.129 – 10.111.108.25410.111.108.255
21910.111.109.0/2510.111.109.1 – 10.111.109.12610.111.109.127
22010.111.109.128/2510.111.109.129 – 10.111.109.25410.111.109.255
22110.111.110.0/2510.111.110.1 – 10.111.110.12610.111.110.127
22210.111.110.128/2510.111.110.129 – 10.111.110.25410.111.110.255
22310.111.111.0/2510.111.111.1 – 10.111.111.12610.111.111.127
22410.111.111.128/2510.111.111.129 – 10.111.111.25410.111.111.255
22510.111.112.0/2510.111.112.1 – 10.111.112.12610.111.112.127
22610.111.112.128/2510.111.112.129 – 10.111.112.25410.111.112.255
22710.111.113.0/2510.111.113.1 – 10.111.113.12610.111.113.127
22810.111.113.128/2510.111.113.129 – 10.111.113.25410.111.113.255
22910.111.114.0/2510.111.114.1 – 10.111.114.12610.111.114.127
23010.111.114.128/2510.111.114.129 – 10.111.114.25410.111.114.255
23110.111.115.0/2510.111.115.1 – 10.111.115.12610.111.115.127
23210.111.115.128/2510.111.115.129 – 10.111.115.25410.111.115.255
23310.111.116.0/2510.111.116.1 – 10.111.116.12610.111.116.127
23410.111.116.128/2510.111.116.129 – 10.111.116.25410.111.116.255
23510.111.117.0/2510.111.117.1 – 10.111.117.12610.111.117.127
23610.111.117.128/2510.111.117.129 – 10.111.117.25410.111.117.255
23710.111.118.0/2510.111.118.1 – 10.111.118.12610.111.118.127
23810.111.118.128/2510.111.118.129 – 10.111.118.25410.111.118.255
23910.111.119.0/2510.111.119.1 – 10.111.119.12610.111.119.127
24010.111.119.128/2510.111.119.129 – 10.111.119.25410.111.119.255
24110.111.120.0/2510.111.120.1 – 10.111.120.12610.111.120.127
24210.111.120.128/2510.111.120.129 – 10.111.120.25410.111.120.255
24310.111.121.0/2510.111.121.1 – 10.111.121.12610.111.121.127
24410.111.121.128/2510.111.121.129 – 10.111.121.25410.111.121.255
24510.111.122.0/2510.111.122.1 – 10.111.122.12610.111.122.127
24610.111.122.128/2510.111.122.129 – 10.111.122.25410.111.122.255
24710.111.123.0/2510.111.123.1 – 10.111.123.12610.111.123.127
24810.111.123.128/2510.111.123.129 – 10.111.123.25410.111.123.255
24910.111.124.0/2510.111.124.1 – 10.111.124.12610.111.124.127
25010.111.124.128/2510.111.124.129 – 10.111.124.25410.111.124.255
25110.111.125.0/2510.111.125.1 – 10.111.125.12610.111.125.127
25210.111.125.128/2510.111.125.129 – 10.111.125.25410.111.125.255
25310.111.126.0/2510.111.126.1 – 10.111.126.12610.111.126.127
25410.111.126.128/2510.111.126.129 – 10.111.126.25410.111.126.255
25510.111.127.0/2510.111.127.1 – 10.111.127.12610.111.127.127
25610.111.127.128/2510.111.127.129 – 10.111.127.25410.111.127.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /17
/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-
/16255.255.0.065,53665,534-
/17255.255.128.032,76832,7661
/18255.255.192.016,38416,3822 split →
/19255.255.224.08,1928,1904 split →
/20255.255.240.04,0964,0948 split →
/21255.255.248.02,0482,04616 split →
/22255.255.252.01,0241,02232 split →
/23255.255.254.051251064 split →
/24255.255.255.0256254128 split →
/25255.255.255.128128126256 split →
/26255.255.255.1926462512 split →
/27255.255.255.22432301,024 split →
/28255.255.255.24016142,048 split →
/29255.255.255.248864,096 split →
/30255.255.255.252428,192 split →
/31255.255.255.2542216,384 split →
/32255.255.255.2551132,768 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 →