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)10.43.0.0/16
network10.43.0.0/16
broadcast10.43.255.255
first host10.43.0.1
last host10.43.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.43.0.0/16
address00001010.00101011.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.00101011.00000000.00000000
broadcast00001010.00101011.11111111.11111111
green = network part, grey = host part
hex0x0a2b0000
decimal170590208
reverse dns0.0.43.10.in-addr.arpa
ipv4-mapped::ffff:a2b:0

/16 split into /25 · 512 subnets

close ×
#networkhost rangebroadcast
110.43.0.0/2510.43.0.1 – 10.43.0.12610.43.0.127
210.43.0.128/2510.43.0.129 – 10.43.0.25410.43.0.255
310.43.1.0/2510.43.1.1 – 10.43.1.12610.43.1.127
410.43.1.128/2510.43.1.129 – 10.43.1.25410.43.1.255
510.43.2.0/2510.43.2.1 – 10.43.2.12610.43.2.127
610.43.2.128/2510.43.2.129 – 10.43.2.25410.43.2.255
710.43.3.0/2510.43.3.1 – 10.43.3.12610.43.3.127
810.43.3.128/2510.43.3.129 – 10.43.3.25410.43.3.255
910.43.4.0/2510.43.4.1 – 10.43.4.12610.43.4.127
1010.43.4.128/2510.43.4.129 – 10.43.4.25410.43.4.255
1110.43.5.0/2510.43.5.1 – 10.43.5.12610.43.5.127
1210.43.5.128/2510.43.5.129 – 10.43.5.25410.43.5.255
1310.43.6.0/2510.43.6.1 – 10.43.6.12610.43.6.127
1410.43.6.128/2510.43.6.129 – 10.43.6.25410.43.6.255
1510.43.7.0/2510.43.7.1 – 10.43.7.12610.43.7.127
1610.43.7.128/2510.43.7.129 – 10.43.7.25410.43.7.255
1710.43.8.0/2510.43.8.1 – 10.43.8.12610.43.8.127
1810.43.8.128/2510.43.8.129 – 10.43.8.25410.43.8.255
1910.43.9.0/2510.43.9.1 – 10.43.9.12610.43.9.127
2010.43.9.128/2510.43.9.129 – 10.43.9.25410.43.9.255
2110.43.10.0/2510.43.10.1 – 10.43.10.12610.43.10.127
2210.43.10.128/2510.43.10.129 – 10.43.10.25410.43.10.255
2310.43.11.0/2510.43.11.1 – 10.43.11.12610.43.11.127
2410.43.11.128/2510.43.11.129 – 10.43.11.25410.43.11.255
2510.43.12.0/2510.43.12.1 – 10.43.12.12610.43.12.127
2610.43.12.128/2510.43.12.129 – 10.43.12.25410.43.12.255
2710.43.13.0/2510.43.13.1 – 10.43.13.12610.43.13.127
2810.43.13.128/2510.43.13.129 – 10.43.13.25410.43.13.255
2910.43.14.0/2510.43.14.1 – 10.43.14.12610.43.14.127
3010.43.14.128/2510.43.14.129 – 10.43.14.25410.43.14.255
3110.43.15.0/2510.43.15.1 – 10.43.15.12610.43.15.127
3210.43.15.128/2510.43.15.129 – 10.43.15.25410.43.15.255
3310.43.16.0/2510.43.16.1 – 10.43.16.12610.43.16.127
3410.43.16.128/2510.43.16.129 – 10.43.16.25410.43.16.255
3510.43.17.0/2510.43.17.1 – 10.43.17.12610.43.17.127
3610.43.17.128/2510.43.17.129 – 10.43.17.25410.43.17.255
3710.43.18.0/2510.43.18.1 – 10.43.18.12610.43.18.127
3810.43.18.128/2510.43.18.129 – 10.43.18.25410.43.18.255
3910.43.19.0/2510.43.19.1 – 10.43.19.12610.43.19.127
4010.43.19.128/2510.43.19.129 – 10.43.19.25410.43.19.255
4110.43.20.0/2510.43.20.1 – 10.43.20.12610.43.20.127
4210.43.20.128/2510.43.20.129 – 10.43.20.25410.43.20.255
4310.43.21.0/2510.43.21.1 – 10.43.21.12610.43.21.127
4410.43.21.128/2510.43.21.129 – 10.43.21.25410.43.21.255
4510.43.22.0/2510.43.22.1 – 10.43.22.12610.43.22.127
4610.43.22.128/2510.43.22.129 – 10.43.22.25410.43.22.255
4710.43.23.0/2510.43.23.1 – 10.43.23.12610.43.23.127
4810.43.23.128/2510.43.23.129 – 10.43.23.25410.43.23.255
4910.43.24.0/2510.43.24.1 – 10.43.24.12610.43.24.127
5010.43.24.128/2510.43.24.129 – 10.43.24.25410.43.24.255
5110.43.25.0/2510.43.25.1 – 10.43.25.12610.43.25.127
5210.43.25.128/2510.43.25.129 – 10.43.25.25410.43.25.255
5310.43.26.0/2510.43.26.1 – 10.43.26.12610.43.26.127
5410.43.26.128/2510.43.26.129 – 10.43.26.25410.43.26.255
5510.43.27.0/2510.43.27.1 – 10.43.27.12610.43.27.127
5610.43.27.128/2510.43.27.129 – 10.43.27.25410.43.27.255
5710.43.28.0/2510.43.28.1 – 10.43.28.12610.43.28.127
5810.43.28.128/2510.43.28.129 – 10.43.28.25410.43.28.255
5910.43.29.0/2510.43.29.1 – 10.43.29.12610.43.29.127
6010.43.29.128/2510.43.29.129 – 10.43.29.25410.43.29.255
6110.43.30.0/2510.43.30.1 – 10.43.30.12610.43.30.127
6210.43.30.128/2510.43.30.129 – 10.43.30.25410.43.30.255
6310.43.31.0/2510.43.31.1 – 10.43.31.12610.43.31.127
6410.43.31.128/2510.43.31.129 – 10.43.31.25410.43.31.255
6510.43.32.0/2510.43.32.1 – 10.43.32.12610.43.32.127
6610.43.32.128/2510.43.32.129 – 10.43.32.25410.43.32.255
6710.43.33.0/2510.43.33.1 – 10.43.33.12610.43.33.127
6810.43.33.128/2510.43.33.129 – 10.43.33.25410.43.33.255
6910.43.34.0/2510.43.34.1 – 10.43.34.12610.43.34.127
7010.43.34.128/2510.43.34.129 – 10.43.34.25410.43.34.255
7110.43.35.0/2510.43.35.1 – 10.43.35.12610.43.35.127
7210.43.35.128/2510.43.35.129 – 10.43.35.25410.43.35.255
7310.43.36.0/2510.43.36.1 – 10.43.36.12610.43.36.127
7410.43.36.128/2510.43.36.129 – 10.43.36.25410.43.36.255
7510.43.37.0/2510.43.37.1 – 10.43.37.12610.43.37.127
7610.43.37.128/2510.43.37.129 – 10.43.37.25410.43.37.255
7710.43.38.0/2510.43.38.1 – 10.43.38.12610.43.38.127
7810.43.38.128/2510.43.38.129 – 10.43.38.25410.43.38.255
7910.43.39.0/2510.43.39.1 – 10.43.39.12610.43.39.127
8010.43.39.128/2510.43.39.129 – 10.43.39.25410.43.39.255
8110.43.40.0/2510.43.40.1 – 10.43.40.12610.43.40.127
8210.43.40.128/2510.43.40.129 – 10.43.40.25410.43.40.255
8310.43.41.0/2510.43.41.1 – 10.43.41.12610.43.41.127
8410.43.41.128/2510.43.41.129 – 10.43.41.25410.43.41.255
8510.43.42.0/2510.43.42.1 – 10.43.42.12610.43.42.127
8610.43.42.128/2510.43.42.129 – 10.43.42.25410.43.42.255
8710.43.43.0/2510.43.43.1 – 10.43.43.12610.43.43.127
8810.43.43.128/2510.43.43.129 – 10.43.43.25410.43.43.255
8910.43.44.0/2510.43.44.1 – 10.43.44.12610.43.44.127
9010.43.44.128/2510.43.44.129 – 10.43.44.25410.43.44.255
9110.43.45.0/2510.43.45.1 – 10.43.45.12610.43.45.127
9210.43.45.128/2510.43.45.129 – 10.43.45.25410.43.45.255
9310.43.46.0/2510.43.46.1 – 10.43.46.12610.43.46.127
9410.43.46.128/2510.43.46.129 – 10.43.46.25410.43.46.255
9510.43.47.0/2510.43.47.1 – 10.43.47.12610.43.47.127
9610.43.47.128/2510.43.47.129 – 10.43.47.25410.43.47.255
9710.43.48.0/2510.43.48.1 – 10.43.48.12610.43.48.127
9810.43.48.128/2510.43.48.129 – 10.43.48.25410.43.48.255
9910.43.49.0/2510.43.49.1 – 10.43.49.12610.43.49.127
10010.43.49.128/2510.43.49.129 – 10.43.49.25410.43.49.255
10110.43.50.0/2510.43.50.1 – 10.43.50.12610.43.50.127
10210.43.50.128/2510.43.50.129 – 10.43.50.25410.43.50.255
10310.43.51.0/2510.43.51.1 – 10.43.51.12610.43.51.127
10410.43.51.128/2510.43.51.129 – 10.43.51.25410.43.51.255
10510.43.52.0/2510.43.52.1 – 10.43.52.12610.43.52.127
10610.43.52.128/2510.43.52.129 – 10.43.52.25410.43.52.255
10710.43.53.0/2510.43.53.1 – 10.43.53.12610.43.53.127
10810.43.53.128/2510.43.53.129 – 10.43.53.25410.43.53.255
10910.43.54.0/2510.43.54.1 – 10.43.54.12610.43.54.127
11010.43.54.128/2510.43.54.129 – 10.43.54.25410.43.54.255
11110.43.55.0/2510.43.55.1 – 10.43.55.12610.43.55.127
11210.43.55.128/2510.43.55.129 – 10.43.55.25410.43.55.255
11310.43.56.0/2510.43.56.1 – 10.43.56.12610.43.56.127
11410.43.56.128/2510.43.56.129 – 10.43.56.25410.43.56.255
11510.43.57.0/2510.43.57.1 – 10.43.57.12610.43.57.127
11610.43.57.128/2510.43.57.129 – 10.43.57.25410.43.57.255
11710.43.58.0/2510.43.58.1 – 10.43.58.12610.43.58.127
11810.43.58.128/2510.43.58.129 – 10.43.58.25410.43.58.255
11910.43.59.0/2510.43.59.1 – 10.43.59.12610.43.59.127
12010.43.59.128/2510.43.59.129 – 10.43.59.25410.43.59.255
12110.43.60.0/2510.43.60.1 – 10.43.60.12610.43.60.127
12210.43.60.128/2510.43.60.129 – 10.43.60.25410.43.60.255
12310.43.61.0/2510.43.61.1 – 10.43.61.12610.43.61.127
12410.43.61.128/2510.43.61.129 – 10.43.61.25410.43.61.255
12510.43.62.0/2510.43.62.1 – 10.43.62.12610.43.62.127
12610.43.62.128/2510.43.62.129 – 10.43.62.25410.43.62.255
12710.43.63.0/2510.43.63.1 – 10.43.63.12610.43.63.127
12810.43.63.128/2510.43.63.129 – 10.43.63.25410.43.63.255
12910.43.64.0/2510.43.64.1 – 10.43.64.12610.43.64.127
13010.43.64.128/2510.43.64.129 – 10.43.64.25410.43.64.255
13110.43.65.0/2510.43.65.1 – 10.43.65.12610.43.65.127
13210.43.65.128/2510.43.65.129 – 10.43.65.25410.43.65.255
13310.43.66.0/2510.43.66.1 – 10.43.66.12610.43.66.127
13410.43.66.128/2510.43.66.129 – 10.43.66.25410.43.66.255
13510.43.67.0/2510.43.67.1 – 10.43.67.12610.43.67.127
13610.43.67.128/2510.43.67.129 – 10.43.67.25410.43.67.255
13710.43.68.0/2510.43.68.1 – 10.43.68.12610.43.68.127
13810.43.68.128/2510.43.68.129 – 10.43.68.25410.43.68.255
13910.43.69.0/2510.43.69.1 – 10.43.69.12610.43.69.127
14010.43.69.128/2510.43.69.129 – 10.43.69.25410.43.69.255
14110.43.70.0/2510.43.70.1 – 10.43.70.12610.43.70.127
14210.43.70.128/2510.43.70.129 – 10.43.70.25410.43.70.255
14310.43.71.0/2510.43.71.1 – 10.43.71.12610.43.71.127
14410.43.71.128/2510.43.71.129 – 10.43.71.25410.43.71.255
14510.43.72.0/2510.43.72.1 – 10.43.72.12610.43.72.127
14610.43.72.128/2510.43.72.129 – 10.43.72.25410.43.72.255
14710.43.73.0/2510.43.73.1 – 10.43.73.12610.43.73.127
14810.43.73.128/2510.43.73.129 – 10.43.73.25410.43.73.255
14910.43.74.0/2510.43.74.1 – 10.43.74.12610.43.74.127
15010.43.74.128/2510.43.74.129 – 10.43.74.25410.43.74.255
15110.43.75.0/2510.43.75.1 – 10.43.75.12610.43.75.127
15210.43.75.128/2510.43.75.129 – 10.43.75.25410.43.75.255
15310.43.76.0/2510.43.76.1 – 10.43.76.12610.43.76.127
15410.43.76.128/2510.43.76.129 – 10.43.76.25410.43.76.255
15510.43.77.0/2510.43.77.1 – 10.43.77.12610.43.77.127
15610.43.77.128/2510.43.77.129 – 10.43.77.25410.43.77.255
15710.43.78.0/2510.43.78.1 – 10.43.78.12610.43.78.127
15810.43.78.128/2510.43.78.129 – 10.43.78.25410.43.78.255
15910.43.79.0/2510.43.79.1 – 10.43.79.12610.43.79.127
16010.43.79.128/2510.43.79.129 – 10.43.79.25410.43.79.255
16110.43.80.0/2510.43.80.1 – 10.43.80.12610.43.80.127
16210.43.80.128/2510.43.80.129 – 10.43.80.25410.43.80.255
16310.43.81.0/2510.43.81.1 – 10.43.81.12610.43.81.127
16410.43.81.128/2510.43.81.129 – 10.43.81.25410.43.81.255
16510.43.82.0/2510.43.82.1 – 10.43.82.12610.43.82.127
16610.43.82.128/2510.43.82.129 – 10.43.82.25410.43.82.255
16710.43.83.0/2510.43.83.1 – 10.43.83.12610.43.83.127
16810.43.83.128/2510.43.83.129 – 10.43.83.25410.43.83.255
16910.43.84.0/2510.43.84.1 – 10.43.84.12610.43.84.127
17010.43.84.128/2510.43.84.129 – 10.43.84.25410.43.84.255
17110.43.85.0/2510.43.85.1 – 10.43.85.12610.43.85.127
17210.43.85.128/2510.43.85.129 – 10.43.85.25410.43.85.255
17310.43.86.0/2510.43.86.1 – 10.43.86.12610.43.86.127
17410.43.86.128/2510.43.86.129 – 10.43.86.25410.43.86.255
17510.43.87.0/2510.43.87.1 – 10.43.87.12610.43.87.127
17610.43.87.128/2510.43.87.129 – 10.43.87.25410.43.87.255
17710.43.88.0/2510.43.88.1 – 10.43.88.12610.43.88.127
17810.43.88.128/2510.43.88.129 – 10.43.88.25410.43.88.255
17910.43.89.0/2510.43.89.1 – 10.43.89.12610.43.89.127
18010.43.89.128/2510.43.89.129 – 10.43.89.25410.43.89.255
18110.43.90.0/2510.43.90.1 – 10.43.90.12610.43.90.127
18210.43.90.128/2510.43.90.129 – 10.43.90.25410.43.90.255
18310.43.91.0/2510.43.91.1 – 10.43.91.12610.43.91.127
18410.43.91.128/2510.43.91.129 – 10.43.91.25410.43.91.255
18510.43.92.0/2510.43.92.1 – 10.43.92.12610.43.92.127
18610.43.92.128/2510.43.92.129 – 10.43.92.25410.43.92.255
18710.43.93.0/2510.43.93.1 – 10.43.93.12610.43.93.127
18810.43.93.128/2510.43.93.129 – 10.43.93.25410.43.93.255
18910.43.94.0/2510.43.94.1 – 10.43.94.12610.43.94.127
19010.43.94.128/2510.43.94.129 – 10.43.94.25410.43.94.255
19110.43.95.0/2510.43.95.1 – 10.43.95.12610.43.95.127
19210.43.95.128/2510.43.95.129 – 10.43.95.25410.43.95.255
19310.43.96.0/2510.43.96.1 – 10.43.96.12610.43.96.127
19410.43.96.128/2510.43.96.129 – 10.43.96.25410.43.96.255
19510.43.97.0/2510.43.97.1 – 10.43.97.12610.43.97.127
19610.43.97.128/2510.43.97.129 – 10.43.97.25410.43.97.255
19710.43.98.0/2510.43.98.1 – 10.43.98.12610.43.98.127
19810.43.98.128/2510.43.98.129 – 10.43.98.25410.43.98.255
19910.43.99.0/2510.43.99.1 – 10.43.99.12610.43.99.127
20010.43.99.128/2510.43.99.129 – 10.43.99.25410.43.99.255
20110.43.100.0/2510.43.100.1 – 10.43.100.12610.43.100.127
20210.43.100.128/2510.43.100.129 – 10.43.100.25410.43.100.255
20310.43.101.0/2510.43.101.1 – 10.43.101.12610.43.101.127
20410.43.101.128/2510.43.101.129 – 10.43.101.25410.43.101.255
20510.43.102.0/2510.43.102.1 – 10.43.102.12610.43.102.127
20610.43.102.128/2510.43.102.129 – 10.43.102.25410.43.102.255
20710.43.103.0/2510.43.103.1 – 10.43.103.12610.43.103.127
20810.43.103.128/2510.43.103.129 – 10.43.103.25410.43.103.255
20910.43.104.0/2510.43.104.1 – 10.43.104.12610.43.104.127
21010.43.104.128/2510.43.104.129 – 10.43.104.25410.43.104.255
21110.43.105.0/2510.43.105.1 – 10.43.105.12610.43.105.127
21210.43.105.128/2510.43.105.129 – 10.43.105.25410.43.105.255
21310.43.106.0/2510.43.106.1 – 10.43.106.12610.43.106.127
21410.43.106.128/2510.43.106.129 – 10.43.106.25410.43.106.255
21510.43.107.0/2510.43.107.1 – 10.43.107.12610.43.107.127
21610.43.107.128/2510.43.107.129 – 10.43.107.25410.43.107.255
21710.43.108.0/2510.43.108.1 – 10.43.108.12610.43.108.127
21810.43.108.128/2510.43.108.129 – 10.43.108.25410.43.108.255
21910.43.109.0/2510.43.109.1 – 10.43.109.12610.43.109.127
22010.43.109.128/2510.43.109.129 – 10.43.109.25410.43.109.255
22110.43.110.0/2510.43.110.1 – 10.43.110.12610.43.110.127
22210.43.110.128/2510.43.110.129 – 10.43.110.25410.43.110.255
22310.43.111.0/2510.43.111.1 – 10.43.111.12610.43.111.127
22410.43.111.128/2510.43.111.129 – 10.43.111.25410.43.111.255
22510.43.112.0/2510.43.112.1 – 10.43.112.12610.43.112.127
22610.43.112.128/2510.43.112.129 – 10.43.112.25410.43.112.255
22710.43.113.0/2510.43.113.1 – 10.43.113.12610.43.113.127
22810.43.113.128/2510.43.113.129 – 10.43.113.25410.43.113.255
22910.43.114.0/2510.43.114.1 – 10.43.114.12610.43.114.127
23010.43.114.128/2510.43.114.129 – 10.43.114.25410.43.114.255
23110.43.115.0/2510.43.115.1 – 10.43.115.12610.43.115.127
23210.43.115.128/2510.43.115.129 – 10.43.115.25410.43.115.255
23310.43.116.0/2510.43.116.1 – 10.43.116.12610.43.116.127
23410.43.116.128/2510.43.116.129 – 10.43.116.25410.43.116.255
23510.43.117.0/2510.43.117.1 – 10.43.117.12610.43.117.127
23610.43.117.128/2510.43.117.129 – 10.43.117.25410.43.117.255
23710.43.118.0/2510.43.118.1 – 10.43.118.12610.43.118.127
23810.43.118.128/2510.43.118.129 – 10.43.118.25410.43.118.255
23910.43.119.0/2510.43.119.1 – 10.43.119.12610.43.119.127
24010.43.119.128/2510.43.119.129 – 10.43.119.25410.43.119.255
24110.43.120.0/2510.43.120.1 – 10.43.120.12610.43.120.127
24210.43.120.128/2510.43.120.129 – 10.43.120.25410.43.120.255
24310.43.121.0/2510.43.121.1 – 10.43.121.12610.43.121.127
24410.43.121.128/2510.43.121.129 – 10.43.121.25410.43.121.255
24510.43.122.0/2510.43.122.1 – 10.43.122.12610.43.122.127
24610.43.122.128/2510.43.122.129 – 10.43.122.25410.43.122.255
24710.43.123.0/2510.43.123.1 – 10.43.123.12610.43.123.127
24810.43.123.128/2510.43.123.129 – 10.43.123.25410.43.123.255
24910.43.124.0/2510.43.124.1 – 10.43.124.12610.43.124.127
25010.43.124.128/2510.43.124.129 – 10.43.124.25410.43.124.255
25110.43.125.0/2510.43.125.1 – 10.43.125.12610.43.125.127
25210.43.125.128/2510.43.125.129 – 10.43.125.25410.43.125.255
25310.43.126.0/2510.43.126.1 – 10.43.126.12610.43.126.127
25410.43.126.128/2510.43.126.129 – 10.43.126.25410.43.126.255
25510.43.127.0/2510.43.127.1 – 10.43.127.12610.43.127.127
25610.43.127.128/2510.43.127.129 – 10.43.127.25410.43.127.255

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 →