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)10.89.64.0/18
network10.89.64.0/18
broadcast10.89.127.255
first host10.89.64.1
last host10.89.127.254
subnet mask255.255.192.0
wildcard0.0.63.255
addresses16,384
usable hosts16,382
classA
ipcalc 10.89.64.0/18
address00001010.01011001.01000000.00000000
subnet mask11111111.11111111.11000000.00000000
network00001010.01011001.01000000.00000000
broadcast00001010.01011001.01111111.11111111
green = network part, grey = host part
hex0x0a594000
decimal173621248
reverse dns0.64.89.10.in-addr.arpa
ipv4-mapped::ffff:a59:4000

/18 split into /28 · 1,024 subnets

close ×
#networkhost rangebroadcast
110.89.64.0/2810.89.64.1 – 10.89.64.1410.89.64.15
210.89.64.16/2810.89.64.17 – 10.89.64.3010.89.64.31
310.89.64.32/2810.89.64.33 – 10.89.64.4610.89.64.47
410.89.64.48/2810.89.64.49 – 10.89.64.6210.89.64.63
510.89.64.64/2810.89.64.65 – 10.89.64.7810.89.64.79
610.89.64.80/2810.89.64.81 – 10.89.64.9410.89.64.95
710.89.64.96/2810.89.64.97 – 10.89.64.11010.89.64.111
810.89.64.112/2810.89.64.113 – 10.89.64.12610.89.64.127
910.89.64.128/2810.89.64.129 – 10.89.64.14210.89.64.143
1010.89.64.144/2810.89.64.145 – 10.89.64.15810.89.64.159
1110.89.64.160/2810.89.64.161 – 10.89.64.17410.89.64.175
1210.89.64.176/2810.89.64.177 – 10.89.64.19010.89.64.191
1310.89.64.192/2810.89.64.193 – 10.89.64.20610.89.64.207
1410.89.64.208/2810.89.64.209 – 10.89.64.22210.89.64.223
1510.89.64.224/2810.89.64.225 – 10.89.64.23810.89.64.239
1610.89.64.240/2810.89.64.241 – 10.89.64.25410.89.64.255
1710.89.65.0/2810.89.65.1 – 10.89.65.1410.89.65.15
1810.89.65.16/2810.89.65.17 – 10.89.65.3010.89.65.31
1910.89.65.32/2810.89.65.33 – 10.89.65.4610.89.65.47
2010.89.65.48/2810.89.65.49 – 10.89.65.6210.89.65.63
2110.89.65.64/2810.89.65.65 – 10.89.65.7810.89.65.79
2210.89.65.80/2810.89.65.81 – 10.89.65.9410.89.65.95
2310.89.65.96/2810.89.65.97 – 10.89.65.11010.89.65.111
2410.89.65.112/2810.89.65.113 – 10.89.65.12610.89.65.127
2510.89.65.128/2810.89.65.129 – 10.89.65.14210.89.65.143
2610.89.65.144/2810.89.65.145 – 10.89.65.15810.89.65.159
2710.89.65.160/2810.89.65.161 – 10.89.65.17410.89.65.175
2810.89.65.176/2810.89.65.177 – 10.89.65.19010.89.65.191
2910.89.65.192/2810.89.65.193 – 10.89.65.20610.89.65.207
3010.89.65.208/2810.89.65.209 – 10.89.65.22210.89.65.223
3110.89.65.224/2810.89.65.225 – 10.89.65.23810.89.65.239
3210.89.65.240/2810.89.65.241 – 10.89.65.25410.89.65.255
3310.89.66.0/2810.89.66.1 – 10.89.66.1410.89.66.15
3410.89.66.16/2810.89.66.17 – 10.89.66.3010.89.66.31
3510.89.66.32/2810.89.66.33 – 10.89.66.4610.89.66.47
3610.89.66.48/2810.89.66.49 – 10.89.66.6210.89.66.63
3710.89.66.64/2810.89.66.65 – 10.89.66.7810.89.66.79
3810.89.66.80/2810.89.66.81 – 10.89.66.9410.89.66.95
3910.89.66.96/2810.89.66.97 – 10.89.66.11010.89.66.111
4010.89.66.112/2810.89.66.113 – 10.89.66.12610.89.66.127
4110.89.66.128/2810.89.66.129 – 10.89.66.14210.89.66.143
4210.89.66.144/2810.89.66.145 – 10.89.66.15810.89.66.159
4310.89.66.160/2810.89.66.161 – 10.89.66.17410.89.66.175
4410.89.66.176/2810.89.66.177 – 10.89.66.19010.89.66.191
4510.89.66.192/2810.89.66.193 – 10.89.66.20610.89.66.207
4610.89.66.208/2810.89.66.209 – 10.89.66.22210.89.66.223
4710.89.66.224/2810.89.66.225 – 10.89.66.23810.89.66.239
4810.89.66.240/2810.89.66.241 – 10.89.66.25410.89.66.255
4910.89.67.0/2810.89.67.1 – 10.89.67.1410.89.67.15
5010.89.67.16/2810.89.67.17 – 10.89.67.3010.89.67.31
5110.89.67.32/2810.89.67.33 – 10.89.67.4610.89.67.47
5210.89.67.48/2810.89.67.49 – 10.89.67.6210.89.67.63
5310.89.67.64/2810.89.67.65 – 10.89.67.7810.89.67.79
5410.89.67.80/2810.89.67.81 – 10.89.67.9410.89.67.95
5510.89.67.96/2810.89.67.97 – 10.89.67.11010.89.67.111
5610.89.67.112/2810.89.67.113 – 10.89.67.12610.89.67.127
5710.89.67.128/2810.89.67.129 – 10.89.67.14210.89.67.143
5810.89.67.144/2810.89.67.145 – 10.89.67.15810.89.67.159
5910.89.67.160/2810.89.67.161 – 10.89.67.17410.89.67.175
6010.89.67.176/2810.89.67.177 – 10.89.67.19010.89.67.191
6110.89.67.192/2810.89.67.193 – 10.89.67.20610.89.67.207
6210.89.67.208/2810.89.67.209 – 10.89.67.22210.89.67.223
6310.89.67.224/2810.89.67.225 – 10.89.67.23810.89.67.239
6410.89.67.240/2810.89.67.241 – 10.89.67.25410.89.67.255
6510.89.68.0/2810.89.68.1 – 10.89.68.1410.89.68.15
6610.89.68.16/2810.89.68.17 – 10.89.68.3010.89.68.31
6710.89.68.32/2810.89.68.33 – 10.89.68.4610.89.68.47
6810.89.68.48/2810.89.68.49 – 10.89.68.6210.89.68.63
6910.89.68.64/2810.89.68.65 – 10.89.68.7810.89.68.79
7010.89.68.80/2810.89.68.81 – 10.89.68.9410.89.68.95
7110.89.68.96/2810.89.68.97 – 10.89.68.11010.89.68.111
7210.89.68.112/2810.89.68.113 – 10.89.68.12610.89.68.127
7310.89.68.128/2810.89.68.129 – 10.89.68.14210.89.68.143
7410.89.68.144/2810.89.68.145 – 10.89.68.15810.89.68.159
7510.89.68.160/2810.89.68.161 – 10.89.68.17410.89.68.175
7610.89.68.176/2810.89.68.177 – 10.89.68.19010.89.68.191
7710.89.68.192/2810.89.68.193 – 10.89.68.20610.89.68.207
7810.89.68.208/2810.89.68.209 – 10.89.68.22210.89.68.223
7910.89.68.224/2810.89.68.225 – 10.89.68.23810.89.68.239
8010.89.68.240/2810.89.68.241 – 10.89.68.25410.89.68.255
8110.89.69.0/2810.89.69.1 – 10.89.69.1410.89.69.15
8210.89.69.16/2810.89.69.17 – 10.89.69.3010.89.69.31
8310.89.69.32/2810.89.69.33 – 10.89.69.4610.89.69.47
8410.89.69.48/2810.89.69.49 – 10.89.69.6210.89.69.63
8510.89.69.64/2810.89.69.65 – 10.89.69.7810.89.69.79
8610.89.69.80/2810.89.69.81 – 10.89.69.9410.89.69.95
8710.89.69.96/2810.89.69.97 – 10.89.69.11010.89.69.111
8810.89.69.112/2810.89.69.113 – 10.89.69.12610.89.69.127
8910.89.69.128/2810.89.69.129 – 10.89.69.14210.89.69.143
9010.89.69.144/2810.89.69.145 – 10.89.69.15810.89.69.159
9110.89.69.160/2810.89.69.161 – 10.89.69.17410.89.69.175
9210.89.69.176/2810.89.69.177 – 10.89.69.19010.89.69.191
9310.89.69.192/2810.89.69.193 – 10.89.69.20610.89.69.207
9410.89.69.208/2810.89.69.209 – 10.89.69.22210.89.69.223
9510.89.69.224/2810.89.69.225 – 10.89.69.23810.89.69.239
9610.89.69.240/2810.89.69.241 – 10.89.69.25410.89.69.255
9710.89.70.0/2810.89.70.1 – 10.89.70.1410.89.70.15
9810.89.70.16/2810.89.70.17 – 10.89.70.3010.89.70.31
9910.89.70.32/2810.89.70.33 – 10.89.70.4610.89.70.47
10010.89.70.48/2810.89.70.49 – 10.89.70.6210.89.70.63
10110.89.70.64/2810.89.70.65 – 10.89.70.7810.89.70.79
10210.89.70.80/2810.89.70.81 – 10.89.70.9410.89.70.95
10310.89.70.96/2810.89.70.97 – 10.89.70.11010.89.70.111
10410.89.70.112/2810.89.70.113 – 10.89.70.12610.89.70.127
10510.89.70.128/2810.89.70.129 – 10.89.70.14210.89.70.143
10610.89.70.144/2810.89.70.145 – 10.89.70.15810.89.70.159
10710.89.70.160/2810.89.70.161 – 10.89.70.17410.89.70.175
10810.89.70.176/2810.89.70.177 – 10.89.70.19010.89.70.191
10910.89.70.192/2810.89.70.193 – 10.89.70.20610.89.70.207
11010.89.70.208/2810.89.70.209 – 10.89.70.22210.89.70.223
11110.89.70.224/2810.89.70.225 – 10.89.70.23810.89.70.239
11210.89.70.240/2810.89.70.241 – 10.89.70.25410.89.70.255
11310.89.71.0/2810.89.71.1 – 10.89.71.1410.89.71.15
11410.89.71.16/2810.89.71.17 – 10.89.71.3010.89.71.31
11510.89.71.32/2810.89.71.33 – 10.89.71.4610.89.71.47
11610.89.71.48/2810.89.71.49 – 10.89.71.6210.89.71.63
11710.89.71.64/2810.89.71.65 – 10.89.71.7810.89.71.79
11810.89.71.80/2810.89.71.81 – 10.89.71.9410.89.71.95
11910.89.71.96/2810.89.71.97 – 10.89.71.11010.89.71.111
12010.89.71.112/2810.89.71.113 – 10.89.71.12610.89.71.127
12110.89.71.128/2810.89.71.129 – 10.89.71.14210.89.71.143
12210.89.71.144/2810.89.71.145 – 10.89.71.15810.89.71.159
12310.89.71.160/2810.89.71.161 – 10.89.71.17410.89.71.175
12410.89.71.176/2810.89.71.177 – 10.89.71.19010.89.71.191
12510.89.71.192/2810.89.71.193 – 10.89.71.20610.89.71.207
12610.89.71.208/2810.89.71.209 – 10.89.71.22210.89.71.223
12710.89.71.224/2810.89.71.225 – 10.89.71.23810.89.71.239
12810.89.71.240/2810.89.71.241 – 10.89.71.25410.89.71.255
12910.89.72.0/2810.89.72.1 – 10.89.72.1410.89.72.15
13010.89.72.16/2810.89.72.17 – 10.89.72.3010.89.72.31
13110.89.72.32/2810.89.72.33 – 10.89.72.4610.89.72.47
13210.89.72.48/2810.89.72.49 – 10.89.72.6210.89.72.63
13310.89.72.64/2810.89.72.65 – 10.89.72.7810.89.72.79
13410.89.72.80/2810.89.72.81 – 10.89.72.9410.89.72.95
13510.89.72.96/2810.89.72.97 – 10.89.72.11010.89.72.111
13610.89.72.112/2810.89.72.113 – 10.89.72.12610.89.72.127
13710.89.72.128/2810.89.72.129 – 10.89.72.14210.89.72.143
13810.89.72.144/2810.89.72.145 – 10.89.72.15810.89.72.159
13910.89.72.160/2810.89.72.161 – 10.89.72.17410.89.72.175
14010.89.72.176/2810.89.72.177 – 10.89.72.19010.89.72.191
14110.89.72.192/2810.89.72.193 – 10.89.72.20610.89.72.207
14210.89.72.208/2810.89.72.209 – 10.89.72.22210.89.72.223
14310.89.72.224/2810.89.72.225 – 10.89.72.23810.89.72.239
14410.89.72.240/2810.89.72.241 – 10.89.72.25410.89.72.255
14510.89.73.0/2810.89.73.1 – 10.89.73.1410.89.73.15
14610.89.73.16/2810.89.73.17 – 10.89.73.3010.89.73.31
14710.89.73.32/2810.89.73.33 – 10.89.73.4610.89.73.47
14810.89.73.48/2810.89.73.49 – 10.89.73.6210.89.73.63
14910.89.73.64/2810.89.73.65 – 10.89.73.7810.89.73.79
15010.89.73.80/2810.89.73.81 – 10.89.73.9410.89.73.95
15110.89.73.96/2810.89.73.97 – 10.89.73.11010.89.73.111
15210.89.73.112/2810.89.73.113 – 10.89.73.12610.89.73.127
15310.89.73.128/2810.89.73.129 – 10.89.73.14210.89.73.143
15410.89.73.144/2810.89.73.145 – 10.89.73.15810.89.73.159
15510.89.73.160/2810.89.73.161 – 10.89.73.17410.89.73.175
15610.89.73.176/2810.89.73.177 – 10.89.73.19010.89.73.191
15710.89.73.192/2810.89.73.193 – 10.89.73.20610.89.73.207
15810.89.73.208/2810.89.73.209 – 10.89.73.22210.89.73.223
15910.89.73.224/2810.89.73.225 – 10.89.73.23810.89.73.239
16010.89.73.240/2810.89.73.241 – 10.89.73.25410.89.73.255
16110.89.74.0/2810.89.74.1 – 10.89.74.1410.89.74.15
16210.89.74.16/2810.89.74.17 – 10.89.74.3010.89.74.31
16310.89.74.32/2810.89.74.33 – 10.89.74.4610.89.74.47
16410.89.74.48/2810.89.74.49 – 10.89.74.6210.89.74.63
16510.89.74.64/2810.89.74.65 – 10.89.74.7810.89.74.79
16610.89.74.80/2810.89.74.81 – 10.89.74.9410.89.74.95
16710.89.74.96/2810.89.74.97 – 10.89.74.11010.89.74.111
16810.89.74.112/2810.89.74.113 – 10.89.74.12610.89.74.127
16910.89.74.128/2810.89.74.129 – 10.89.74.14210.89.74.143
17010.89.74.144/2810.89.74.145 – 10.89.74.15810.89.74.159
17110.89.74.160/2810.89.74.161 – 10.89.74.17410.89.74.175
17210.89.74.176/2810.89.74.177 – 10.89.74.19010.89.74.191
17310.89.74.192/2810.89.74.193 – 10.89.74.20610.89.74.207
17410.89.74.208/2810.89.74.209 – 10.89.74.22210.89.74.223
17510.89.74.224/2810.89.74.225 – 10.89.74.23810.89.74.239
17610.89.74.240/2810.89.74.241 – 10.89.74.25410.89.74.255
17710.89.75.0/2810.89.75.1 – 10.89.75.1410.89.75.15
17810.89.75.16/2810.89.75.17 – 10.89.75.3010.89.75.31
17910.89.75.32/2810.89.75.33 – 10.89.75.4610.89.75.47
18010.89.75.48/2810.89.75.49 – 10.89.75.6210.89.75.63
18110.89.75.64/2810.89.75.65 – 10.89.75.7810.89.75.79
18210.89.75.80/2810.89.75.81 – 10.89.75.9410.89.75.95
18310.89.75.96/2810.89.75.97 – 10.89.75.11010.89.75.111
18410.89.75.112/2810.89.75.113 – 10.89.75.12610.89.75.127
18510.89.75.128/2810.89.75.129 – 10.89.75.14210.89.75.143
18610.89.75.144/2810.89.75.145 – 10.89.75.15810.89.75.159
18710.89.75.160/2810.89.75.161 – 10.89.75.17410.89.75.175
18810.89.75.176/2810.89.75.177 – 10.89.75.19010.89.75.191
18910.89.75.192/2810.89.75.193 – 10.89.75.20610.89.75.207
19010.89.75.208/2810.89.75.209 – 10.89.75.22210.89.75.223
19110.89.75.224/2810.89.75.225 – 10.89.75.23810.89.75.239
19210.89.75.240/2810.89.75.241 – 10.89.75.25410.89.75.255
19310.89.76.0/2810.89.76.1 – 10.89.76.1410.89.76.15
19410.89.76.16/2810.89.76.17 – 10.89.76.3010.89.76.31
19510.89.76.32/2810.89.76.33 – 10.89.76.4610.89.76.47
19610.89.76.48/2810.89.76.49 – 10.89.76.6210.89.76.63
19710.89.76.64/2810.89.76.65 – 10.89.76.7810.89.76.79
19810.89.76.80/2810.89.76.81 – 10.89.76.9410.89.76.95
19910.89.76.96/2810.89.76.97 – 10.89.76.11010.89.76.111
20010.89.76.112/2810.89.76.113 – 10.89.76.12610.89.76.127
20110.89.76.128/2810.89.76.129 – 10.89.76.14210.89.76.143
20210.89.76.144/2810.89.76.145 – 10.89.76.15810.89.76.159
20310.89.76.160/2810.89.76.161 – 10.89.76.17410.89.76.175
20410.89.76.176/2810.89.76.177 – 10.89.76.19010.89.76.191
20510.89.76.192/2810.89.76.193 – 10.89.76.20610.89.76.207
20610.89.76.208/2810.89.76.209 – 10.89.76.22210.89.76.223
20710.89.76.224/2810.89.76.225 – 10.89.76.23810.89.76.239
20810.89.76.240/2810.89.76.241 – 10.89.76.25410.89.76.255
20910.89.77.0/2810.89.77.1 – 10.89.77.1410.89.77.15
21010.89.77.16/2810.89.77.17 – 10.89.77.3010.89.77.31
21110.89.77.32/2810.89.77.33 – 10.89.77.4610.89.77.47
21210.89.77.48/2810.89.77.49 – 10.89.77.6210.89.77.63
21310.89.77.64/2810.89.77.65 – 10.89.77.7810.89.77.79
21410.89.77.80/2810.89.77.81 – 10.89.77.9410.89.77.95
21510.89.77.96/2810.89.77.97 – 10.89.77.11010.89.77.111
21610.89.77.112/2810.89.77.113 – 10.89.77.12610.89.77.127
21710.89.77.128/2810.89.77.129 – 10.89.77.14210.89.77.143
21810.89.77.144/2810.89.77.145 – 10.89.77.15810.89.77.159
21910.89.77.160/2810.89.77.161 – 10.89.77.17410.89.77.175
22010.89.77.176/2810.89.77.177 – 10.89.77.19010.89.77.191
22110.89.77.192/2810.89.77.193 – 10.89.77.20610.89.77.207
22210.89.77.208/2810.89.77.209 – 10.89.77.22210.89.77.223
22310.89.77.224/2810.89.77.225 – 10.89.77.23810.89.77.239
22410.89.77.240/2810.89.77.241 – 10.89.77.25410.89.77.255
22510.89.78.0/2810.89.78.1 – 10.89.78.1410.89.78.15
22610.89.78.16/2810.89.78.17 – 10.89.78.3010.89.78.31
22710.89.78.32/2810.89.78.33 – 10.89.78.4610.89.78.47
22810.89.78.48/2810.89.78.49 – 10.89.78.6210.89.78.63
22910.89.78.64/2810.89.78.65 – 10.89.78.7810.89.78.79
23010.89.78.80/2810.89.78.81 – 10.89.78.9410.89.78.95
23110.89.78.96/2810.89.78.97 – 10.89.78.11010.89.78.111
23210.89.78.112/2810.89.78.113 – 10.89.78.12610.89.78.127
23310.89.78.128/2810.89.78.129 – 10.89.78.14210.89.78.143
23410.89.78.144/2810.89.78.145 – 10.89.78.15810.89.78.159
23510.89.78.160/2810.89.78.161 – 10.89.78.17410.89.78.175
23610.89.78.176/2810.89.78.177 – 10.89.78.19010.89.78.191
23710.89.78.192/2810.89.78.193 – 10.89.78.20610.89.78.207
23810.89.78.208/2810.89.78.209 – 10.89.78.22210.89.78.223
23910.89.78.224/2810.89.78.225 – 10.89.78.23810.89.78.239
24010.89.78.240/2810.89.78.241 – 10.89.78.25410.89.78.255
24110.89.79.0/2810.89.79.1 – 10.89.79.1410.89.79.15
24210.89.79.16/2810.89.79.17 – 10.89.79.3010.89.79.31
24310.89.79.32/2810.89.79.33 – 10.89.79.4610.89.79.47
24410.89.79.48/2810.89.79.49 – 10.89.79.6210.89.79.63
24510.89.79.64/2810.89.79.65 – 10.89.79.7810.89.79.79
24610.89.79.80/2810.89.79.81 – 10.89.79.9410.89.79.95
24710.89.79.96/2810.89.79.97 – 10.89.79.11010.89.79.111
24810.89.79.112/2810.89.79.113 – 10.89.79.12610.89.79.127
24910.89.79.128/2810.89.79.129 – 10.89.79.14210.89.79.143
25010.89.79.144/2810.89.79.145 – 10.89.79.15810.89.79.159
25110.89.79.160/2810.89.79.161 – 10.89.79.17410.89.79.175
25210.89.79.176/2810.89.79.177 – 10.89.79.19010.89.79.191
25310.89.79.192/2810.89.79.193 – 10.89.79.20610.89.79.207
25410.89.79.208/2810.89.79.209 – 10.89.79.22210.89.79.223
25510.89.79.224/2810.89.79.225 – 10.89.79.23810.89.79.239
25610.89.79.240/2810.89.79.241 – 10.89.79.25410.89.79.255

showing 256 of 1,024

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 →