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)10.40.64.0/18
network10.40.64.0/18
broadcast10.40.127.255
first host10.40.64.1
last host10.40.127.254
subnet mask255.255.192.0
wildcard0.0.63.255
addresses16,384
usable hosts16,382
classA
ipcalc 10.40.64.0/18
address00001010.00101000.01000000.00000000
subnet mask11111111.11111111.11000000.00000000
network00001010.00101000.01000000.00000000
broadcast00001010.00101000.01111111.11111111
green = network part, grey = host part
hex0x0a284000
decimal170409984
reverse dns0.64.40.10.in-addr.arpa
ipv4-mapped::ffff:a28:4000

/18 split into /26 · 256 subnets

close ×
#networkhost rangebroadcast
110.40.64.0/2610.40.64.1 – 10.40.64.6210.40.64.63
210.40.64.64/2610.40.64.65 – 10.40.64.12610.40.64.127
310.40.64.128/2610.40.64.129 – 10.40.64.19010.40.64.191
410.40.64.192/2610.40.64.193 – 10.40.64.25410.40.64.255
510.40.65.0/2610.40.65.1 – 10.40.65.6210.40.65.63
610.40.65.64/2610.40.65.65 – 10.40.65.12610.40.65.127
710.40.65.128/2610.40.65.129 – 10.40.65.19010.40.65.191
810.40.65.192/2610.40.65.193 – 10.40.65.25410.40.65.255
910.40.66.0/2610.40.66.1 – 10.40.66.6210.40.66.63
1010.40.66.64/2610.40.66.65 – 10.40.66.12610.40.66.127
1110.40.66.128/2610.40.66.129 – 10.40.66.19010.40.66.191
1210.40.66.192/2610.40.66.193 – 10.40.66.25410.40.66.255
1310.40.67.0/2610.40.67.1 – 10.40.67.6210.40.67.63
1410.40.67.64/2610.40.67.65 – 10.40.67.12610.40.67.127
1510.40.67.128/2610.40.67.129 – 10.40.67.19010.40.67.191
1610.40.67.192/2610.40.67.193 – 10.40.67.25410.40.67.255
1710.40.68.0/2610.40.68.1 – 10.40.68.6210.40.68.63
1810.40.68.64/2610.40.68.65 – 10.40.68.12610.40.68.127
1910.40.68.128/2610.40.68.129 – 10.40.68.19010.40.68.191
2010.40.68.192/2610.40.68.193 – 10.40.68.25410.40.68.255
2110.40.69.0/2610.40.69.1 – 10.40.69.6210.40.69.63
2210.40.69.64/2610.40.69.65 – 10.40.69.12610.40.69.127
2310.40.69.128/2610.40.69.129 – 10.40.69.19010.40.69.191
2410.40.69.192/2610.40.69.193 – 10.40.69.25410.40.69.255
2510.40.70.0/2610.40.70.1 – 10.40.70.6210.40.70.63
2610.40.70.64/2610.40.70.65 – 10.40.70.12610.40.70.127
2710.40.70.128/2610.40.70.129 – 10.40.70.19010.40.70.191
2810.40.70.192/2610.40.70.193 – 10.40.70.25410.40.70.255
2910.40.71.0/2610.40.71.1 – 10.40.71.6210.40.71.63
3010.40.71.64/2610.40.71.65 – 10.40.71.12610.40.71.127
3110.40.71.128/2610.40.71.129 – 10.40.71.19010.40.71.191
3210.40.71.192/2610.40.71.193 – 10.40.71.25410.40.71.255
3310.40.72.0/2610.40.72.1 – 10.40.72.6210.40.72.63
3410.40.72.64/2610.40.72.65 – 10.40.72.12610.40.72.127
3510.40.72.128/2610.40.72.129 – 10.40.72.19010.40.72.191
3610.40.72.192/2610.40.72.193 – 10.40.72.25410.40.72.255
3710.40.73.0/2610.40.73.1 – 10.40.73.6210.40.73.63
3810.40.73.64/2610.40.73.65 – 10.40.73.12610.40.73.127
3910.40.73.128/2610.40.73.129 – 10.40.73.19010.40.73.191
4010.40.73.192/2610.40.73.193 – 10.40.73.25410.40.73.255
4110.40.74.0/2610.40.74.1 – 10.40.74.6210.40.74.63
4210.40.74.64/2610.40.74.65 – 10.40.74.12610.40.74.127
4310.40.74.128/2610.40.74.129 – 10.40.74.19010.40.74.191
4410.40.74.192/2610.40.74.193 – 10.40.74.25410.40.74.255
4510.40.75.0/2610.40.75.1 – 10.40.75.6210.40.75.63
4610.40.75.64/2610.40.75.65 – 10.40.75.12610.40.75.127
4710.40.75.128/2610.40.75.129 – 10.40.75.19010.40.75.191
4810.40.75.192/2610.40.75.193 – 10.40.75.25410.40.75.255
4910.40.76.0/2610.40.76.1 – 10.40.76.6210.40.76.63
5010.40.76.64/2610.40.76.65 – 10.40.76.12610.40.76.127
5110.40.76.128/2610.40.76.129 – 10.40.76.19010.40.76.191
5210.40.76.192/2610.40.76.193 – 10.40.76.25410.40.76.255
5310.40.77.0/2610.40.77.1 – 10.40.77.6210.40.77.63
5410.40.77.64/2610.40.77.65 – 10.40.77.12610.40.77.127
5510.40.77.128/2610.40.77.129 – 10.40.77.19010.40.77.191
5610.40.77.192/2610.40.77.193 – 10.40.77.25410.40.77.255
5710.40.78.0/2610.40.78.1 – 10.40.78.6210.40.78.63
5810.40.78.64/2610.40.78.65 – 10.40.78.12610.40.78.127
5910.40.78.128/2610.40.78.129 – 10.40.78.19010.40.78.191
6010.40.78.192/2610.40.78.193 – 10.40.78.25410.40.78.255
6110.40.79.0/2610.40.79.1 – 10.40.79.6210.40.79.63
6210.40.79.64/2610.40.79.65 – 10.40.79.12610.40.79.127
6310.40.79.128/2610.40.79.129 – 10.40.79.19010.40.79.191
6410.40.79.192/2610.40.79.193 – 10.40.79.25410.40.79.255
6510.40.80.0/2610.40.80.1 – 10.40.80.6210.40.80.63
6610.40.80.64/2610.40.80.65 – 10.40.80.12610.40.80.127
6710.40.80.128/2610.40.80.129 – 10.40.80.19010.40.80.191
6810.40.80.192/2610.40.80.193 – 10.40.80.25410.40.80.255
6910.40.81.0/2610.40.81.1 – 10.40.81.6210.40.81.63
7010.40.81.64/2610.40.81.65 – 10.40.81.12610.40.81.127
7110.40.81.128/2610.40.81.129 – 10.40.81.19010.40.81.191
7210.40.81.192/2610.40.81.193 – 10.40.81.25410.40.81.255
7310.40.82.0/2610.40.82.1 – 10.40.82.6210.40.82.63
7410.40.82.64/2610.40.82.65 – 10.40.82.12610.40.82.127
7510.40.82.128/2610.40.82.129 – 10.40.82.19010.40.82.191
7610.40.82.192/2610.40.82.193 – 10.40.82.25410.40.82.255
7710.40.83.0/2610.40.83.1 – 10.40.83.6210.40.83.63
7810.40.83.64/2610.40.83.65 – 10.40.83.12610.40.83.127
7910.40.83.128/2610.40.83.129 – 10.40.83.19010.40.83.191
8010.40.83.192/2610.40.83.193 – 10.40.83.25410.40.83.255
8110.40.84.0/2610.40.84.1 – 10.40.84.6210.40.84.63
8210.40.84.64/2610.40.84.65 – 10.40.84.12610.40.84.127
8310.40.84.128/2610.40.84.129 – 10.40.84.19010.40.84.191
8410.40.84.192/2610.40.84.193 – 10.40.84.25410.40.84.255
8510.40.85.0/2610.40.85.1 – 10.40.85.6210.40.85.63
8610.40.85.64/2610.40.85.65 – 10.40.85.12610.40.85.127
8710.40.85.128/2610.40.85.129 – 10.40.85.19010.40.85.191
8810.40.85.192/2610.40.85.193 – 10.40.85.25410.40.85.255
8910.40.86.0/2610.40.86.1 – 10.40.86.6210.40.86.63
9010.40.86.64/2610.40.86.65 – 10.40.86.12610.40.86.127
9110.40.86.128/2610.40.86.129 – 10.40.86.19010.40.86.191
9210.40.86.192/2610.40.86.193 – 10.40.86.25410.40.86.255
9310.40.87.0/2610.40.87.1 – 10.40.87.6210.40.87.63
9410.40.87.64/2610.40.87.65 – 10.40.87.12610.40.87.127
9510.40.87.128/2610.40.87.129 – 10.40.87.19010.40.87.191
9610.40.87.192/2610.40.87.193 – 10.40.87.25410.40.87.255
9710.40.88.0/2610.40.88.1 – 10.40.88.6210.40.88.63
9810.40.88.64/2610.40.88.65 – 10.40.88.12610.40.88.127
9910.40.88.128/2610.40.88.129 – 10.40.88.19010.40.88.191
10010.40.88.192/2610.40.88.193 – 10.40.88.25410.40.88.255
10110.40.89.0/2610.40.89.1 – 10.40.89.6210.40.89.63
10210.40.89.64/2610.40.89.65 – 10.40.89.12610.40.89.127
10310.40.89.128/2610.40.89.129 – 10.40.89.19010.40.89.191
10410.40.89.192/2610.40.89.193 – 10.40.89.25410.40.89.255
10510.40.90.0/2610.40.90.1 – 10.40.90.6210.40.90.63
10610.40.90.64/2610.40.90.65 – 10.40.90.12610.40.90.127
10710.40.90.128/2610.40.90.129 – 10.40.90.19010.40.90.191
10810.40.90.192/2610.40.90.193 – 10.40.90.25410.40.90.255
10910.40.91.0/2610.40.91.1 – 10.40.91.6210.40.91.63
11010.40.91.64/2610.40.91.65 – 10.40.91.12610.40.91.127
11110.40.91.128/2610.40.91.129 – 10.40.91.19010.40.91.191
11210.40.91.192/2610.40.91.193 – 10.40.91.25410.40.91.255
11310.40.92.0/2610.40.92.1 – 10.40.92.6210.40.92.63
11410.40.92.64/2610.40.92.65 – 10.40.92.12610.40.92.127
11510.40.92.128/2610.40.92.129 – 10.40.92.19010.40.92.191
11610.40.92.192/2610.40.92.193 – 10.40.92.25410.40.92.255
11710.40.93.0/2610.40.93.1 – 10.40.93.6210.40.93.63
11810.40.93.64/2610.40.93.65 – 10.40.93.12610.40.93.127
11910.40.93.128/2610.40.93.129 – 10.40.93.19010.40.93.191
12010.40.93.192/2610.40.93.193 – 10.40.93.25410.40.93.255
12110.40.94.0/2610.40.94.1 – 10.40.94.6210.40.94.63
12210.40.94.64/2610.40.94.65 – 10.40.94.12610.40.94.127
12310.40.94.128/2610.40.94.129 – 10.40.94.19010.40.94.191
12410.40.94.192/2610.40.94.193 – 10.40.94.25410.40.94.255
12510.40.95.0/2610.40.95.1 – 10.40.95.6210.40.95.63
12610.40.95.64/2610.40.95.65 – 10.40.95.12610.40.95.127
12710.40.95.128/2610.40.95.129 – 10.40.95.19010.40.95.191
12810.40.95.192/2610.40.95.193 – 10.40.95.25410.40.95.255
12910.40.96.0/2610.40.96.1 – 10.40.96.6210.40.96.63
13010.40.96.64/2610.40.96.65 – 10.40.96.12610.40.96.127
13110.40.96.128/2610.40.96.129 – 10.40.96.19010.40.96.191
13210.40.96.192/2610.40.96.193 – 10.40.96.25410.40.96.255
13310.40.97.0/2610.40.97.1 – 10.40.97.6210.40.97.63
13410.40.97.64/2610.40.97.65 – 10.40.97.12610.40.97.127
13510.40.97.128/2610.40.97.129 – 10.40.97.19010.40.97.191
13610.40.97.192/2610.40.97.193 – 10.40.97.25410.40.97.255
13710.40.98.0/2610.40.98.1 – 10.40.98.6210.40.98.63
13810.40.98.64/2610.40.98.65 – 10.40.98.12610.40.98.127
13910.40.98.128/2610.40.98.129 – 10.40.98.19010.40.98.191
14010.40.98.192/2610.40.98.193 – 10.40.98.25410.40.98.255
14110.40.99.0/2610.40.99.1 – 10.40.99.6210.40.99.63
14210.40.99.64/2610.40.99.65 – 10.40.99.12610.40.99.127
14310.40.99.128/2610.40.99.129 – 10.40.99.19010.40.99.191
14410.40.99.192/2610.40.99.193 – 10.40.99.25410.40.99.255
14510.40.100.0/2610.40.100.1 – 10.40.100.6210.40.100.63
14610.40.100.64/2610.40.100.65 – 10.40.100.12610.40.100.127
14710.40.100.128/2610.40.100.129 – 10.40.100.19010.40.100.191
14810.40.100.192/2610.40.100.193 – 10.40.100.25410.40.100.255
14910.40.101.0/2610.40.101.1 – 10.40.101.6210.40.101.63
15010.40.101.64/2610.40.101.65 – 10.40.101.12610.40.101.127
15110.40.101.128/2610.40.101.129 – 10.40.101.19010.40.101.191
15210.40.101.192/2610.40.101.193 – 10.40.101.25410.40.101.255
15310.40.102.0/2610.40.102.1 – 10.40.102.6210.40.102.63
15410.40.102.64/2610.40.102.65 – 10.40.102.12610.40.102.127
15510.40.102.128/2610.40.102.129 – 10.40.102.19010.40.102.191
15610.40.102.192/2610.40.102.193 – 10.40.102.25410.40.102.255
15710.40.103.0/2610.40.103.1 – 10.40.103.6210.40.103.63
15810.40.103.64/2610.40.103.65 – 10.40.103.12610.40.103.127
15910.40.103.128/2610.40.103.129 – 10.40.103.19010.40.103.191
16010.40.103.192/2610.40.103.193 – 10.40.103.25410.40.103.255
16110.40.104.0/2610.40.104.1 – 10.40.104.6210.40.104.63
16210.40.104.64/2610.40.104.65 – 10.40.104.12610.40.104.127
16310.40.104.128/2610.40.104.129 – 10.40.104.19010.40.104.191
16410.40.104.192/2610.40.104.193 – 10.40.104.25410.40.104.255
16510.40.105.0/2610.40.105.1 – 10.40.105.6210.40.105.63
16610.40.105.64/2610.40.105.65 – 10.40.105.12610.40.105.127
16710.40.105.128/2610.40.105.129 – 10.40.105.19010.40.105.191
16810.40.105.192/2610.40.105.193 – 10.40.105.25410.40.105.255
16910.40.106.0/2610.40.106.1 – 10.40.106.6210.40.106.63
17010.40.106.64/2610.40.106.65 – 10.40.106.12610.40.106.127
17110.40.106.128/2610.40.106.129 – 10.40.106.19010.40.106.191
17210.40.106.192/2610.40.106.193 – 10.40.106.25410.40.106.255
17310.40.107.0/2610.40.107.1 – 10.40.107.6210.40.107.63
17410.40.107.64/2610.40.107.65 – 10.40.107.12610.40.107.127
17510.40.107.128/2610.40.107.129 – 10.40.107.19010.40.107.191
17610.40.107.192/2610.40.107.193 – 10.40.107.25410.40.107.255
17710.40.108.0/2610.40.108.1 – 10.40.108.6210.40.108.63
17810.40.108.64/2610.40.108.65 – 10.40.108.12610.40.108.127
17910.40.108.128/2610.40.108.129 – 10.40.108.19010.40.108.191
18010.40.108.192/2610.40.108.193 – 10.40.108.25410.40.108.255
18110.40.109.0/2610.40.109.1 – 10.40.109.6210.40.109.63
18210.40.109.64/2610.40.109.65 – 10.40.109.12610.40.109.127
18310.40.109.128/2610.40.109.129 – 10.40.109.19010.40.109.191
18410.40.109.192/2610.40.109.193 – 10.40.109.25410.40.109.255
18510.40.110.0/2610.40.110.1 – 10.40.110.6210.40.110.63
18610.40.110.64/2610.40.110.65 – 10.40.110.12610.40.110.127
18710.40.110.128/2610.40.110.129 – 10.40.110.19010.40.110.191
18810.40.110.192/2610.40.110.193 – 10.40.110.25410.40.110.255
18910.40.111.0/2610.40.111.1 – 10.40.111.6210.40.111.63
19010.40.111.64/2610.40.111.65 – 10.40.111.12610.40.111.127
19110.40.111.128/2610.40.111.129 – 10.40.111.19010.40.111.191
19210.40.111.192/2610.40.111.193 – 10.40.111.25410.40.111.255
19310.40.112.0/2610.40.112.1 – 10.40.112.6210.40.112.63
19410.40.112.64/2610.40.112.65 – 10.40.112.12610.40.112.127
19510.40.112.128/2610.40.112.129 – 10.40.112.19010.40.112.191
19610.40.112.192/2610.40.112.193 – 10.40.112.25410.40.112.255
19710.40.113.0/2610.40.113.1 – 10.40.113.6210.40.113.63
19810.40.113.64/2610.40.113.65 – 10.40.113.12610.40.113.127
19910.40.113.128/2610.40.113.129 – 10.40.113.19010.40.113.191
20010.40.113.192/2610.40.113.193 – 10.40.113.25410.40.113.255
20110.40.114.0/2610.40.114.1 – 10.40.114.6210.40.114.63
20210.40.114.64/2610.40.114.65 – 10.40.114.12610.40.114.127
20310.40.114.128/2610.40.114.129 – 10.40.114.19010.40.114.191
20410.40.114.192/2610.40.114.193 – 10.40.114.25410.40.114.255
20510.40.115.0/2610.40.115.1 – 10.40.115.6210.40.115.63
20610.40.115.64/2610.40.115.65 – 10.40.115.12610.40.115.127
20710.40.115.128/2610.40.115.129 – 10.40.115.19010.40.115.191
20810.40.115.192/2610.40.115.193 – 10.40.115.25410.40.115.255
20910.40.116.0/2610.40.116.1 – 10.40.116.6210.40.116.63
21010.40.116.64/2610.40.116.65 – 10.40.116.12610.40.116.127
21110.40.116.128/2610.40.116.129 – 10.40.116.19010.40.116.191
21210.40.116.192/2610.40.116.193 – 10.40.116.25410.40.116.255
21310.40.117.0/2610.40.117.1 – 10.40.117.6210.40.117.63
21410.40.117.64/2610.40.117.65 – 10.40.117.12610.40.117.127
21510.40.117.128/2610.40.117.129 – 10.40.117.19010.40.117.191
21610.40.117.192/2610.40.117.193 – 10.40.117.25410.40.117.255
21710.40.118.0/2610.40.118.1 – 10.40.118.6210.40.118.63
21810.40.118.64/2610.40.118.65 – 10.40.118.12610.40.118.127
21910.40.118.128/2610.40.118.129 – 10.40.118.19010.40.118.191
22010.40.118.192/2610.40.118.193 – 10.40.118.25410.40.118.255
22110.40.119.0/2610.40.119.1 – 10.40.119.6210.40.119.63
22210.40.119.64/2610.40.119.65 – 10.40.119.12610.40.119.127
22310.40.119.128/2610.40.119.129 – 10.40.119.19010.40.119.191
22410.40.119.192/2610.40.119.193 – 10.40.119.25410.40.119.255
22510.40.120.0/2610.40.120.1 – 10.40.120.6210.40.120.63
22610.40.120.64/2610.40.120.65 – 10.40.120.12610.40.120.127
22710.40.120.128/2610.40.120.129 – 10.40.120.19010.40.120.191
22810.40.120.192/2610.40.120.193 – 10.40.120.25410.40.120.255
22910.40.121.0/2610.40.121.1 – 10.40.121.6210.40.121.63
23010.40.121.64/2610.40.121.65 – 10.40.121.12610.40.121.127
23110.40.121.128/2610.40.121.129 – 10.40.121.19010.40.121.191
23210.40.121.192/2610.40.121.193 – 10.40.121.25410.40.121.255
23310.40.122.0/2610.40.122.1 – 10.40.122.6210.40.122.63
23410.40.122.64/2610.40.122.65 – 10.40.122.12610.40.122.127
23510.40.122.128/2610.40.122.129 – 10.40.122.19010.40.122.191
23610.40.122.192/2610.40.122.193 – 10.40.122.25410.40.122.255
23710.40.123.0/2610.40.123.1 – 10.40.123.6210.40.123.63
23810.40.123.64/2610.40.123.65 – 10.40.123.12610.40.123.127
23910.40.123.128/2610.40.123.129 – 10.40.123.19010.40.123.191
24010.40.123.192/2610.40.123.193 – 10.40.123.25410.40.123.255
24110.40.124.0/2610.40.124.1 – 10.40.124.6210.40.124.63
24210.40.124.64/2610.40.124.65 – 10.40.124.12610.40.124.127
24310.40.124.128/2610.40.124.129 – 10.40.124.19010.40.124.191
24410.40.124.192/2610.40.124.193 – 10.40.124.25410.40.124.255
24510.40.125.0/2610.40.125.1 – 10.40.125.6210.40.125.63
24610.40.125.64/2610.40.125.65 – 10.40.125.12610.40.125.127
24710.40.125.128/2610.40.125.129 – 10.40.125.19010.40.125.191
24810.40.125.192/2610.40.125.193 – 10.40.125.25410.40.125.255
24910.40.126.0/2610.40.126.1 – 10.40.126.6210.40.126.63
25010.40.126.64/2610.40.126.65 – 10.40.126.12610.40.126.127
25110.40.126.128/2610.40.126.129 – 10.40.126.19010.40.126.191
25210.40.126.192/2610.40.126.193 – 10.40.126.25410.40.126.255
25310.40.127.0/2610.40.127.1 – 10.40.127.6210.40.127.63
25410.40.127.64/2610.40.127.65 – 10.40.127.12610.40.127.127
25510.40.127.128/2610.40.127.129 – 10.40.127.19010.40.127.191
25610.40.127.192/2610.40.127.193 – 10.40.127.25410.40.127.255
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /18
/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-
/17255.255.128.032,76832,766-
/18255.255.192.016,38416,3821
/19255.255.224.08,1928,1902 split →
/20255.255.240.04,0964,0944 split →
/21255.255.248.02,0482,0468 split →
/22255.255.252.01,0241,02216 split →
/23255.255.254.051251032 split →
/24255.255.255.025625464 split →
/25255.255.255.128128126128 split →
/26255.255.255.1926462256 split →
/27255.255.255.2243230512 split →
/28255.255.255.24016141,024 split →
/29255.255.255.248862,048 split →
/30255.255.255.252424,096 split →
/31255.255.255.254228,192 split →
/32255.255.255.2551116,384 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 →