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)10.30.64.0/18
network10.30.64.0/18
broadcast10.30.127.255
first host10.30.64.1
last host10.30.127.254
subnet mask255.255.192.0
wildcard0.0.63.255
addresses16,384
usable hosts16,382
classA
ipcalc 10.30.64.0/18
address00001010.00011110.01000000.00000000
subnet mask11111111.11111111.11000000.00000000
network00001010.00011110.01000000.00000000
broadcast00001010.00011110.01111111.11111111
green = network part, grey = host part
hex0x0a1e4000
decimal169754624
reverse dns0.64.30.10.in-addr.arpa
ipv4-mapped::ffff:a1e:4000

/18 split into /28 · 1,024 subnets

close ×
#networkhost rangebroadcast
110.30.64.0/2810.30.64.1 – 10.30.64.1410.30.64.15
210.30.64.16/2810.30.64.17 – 10.30.64.3010.30.64.31
310.30.64.32/2810.30.64.33 – 10.30.64.4610.30.64.47
410.30.64.48/2810.30.64.49 – 10.30.64.6210.30.64.63
510.30.64.64/2810.30.64.65 – 10.30.64.7810.30.64.79
610.30.64.80/2810.30.64.81 – 10.30.64.9410.30.64.95
710.30.64.96/2810.30.64.97 – 10.30.64.11010.30.64.111
810.30.64.112/2810.30.64.113 – 10.30.64.12610.30.64.127
910.30.64.128/2810.30.64.129 – 10.30.64.14210.30.64.143
1010.30.64.144/2810.30.64.145 – 10.30.64.15810.30.64.159
1110.30.64.160/2810.30.64.161 – 10.30.64.17410.30.64.175
1210.30.64.176/2810.30.64.177 – 10.30.64.19010.30.64.191
1310.30.64.192/2810.30.64.193 – 10.30.64.20610.30.64.207
1410.30.64.208/2810.30.64.209 – 10.30.64.22210.30.64.223
1510.30.64.224/2810.30.64.225 – 10.30.64.23810.30.64.239
1610.30.64.240/2810.30.64.241 – 10.30.64.25410.30.64.255
1710.30.65.0/2810.30.65.1 – 10.30.65.1410.30.65.15
1810.30.65.16/2810.30.65.17 – 10.30.65.3010.30.65.31
1910.30.65.32/2810.30.65.33 – 10.30.65.4610.30.65.47
2010.30.65.48/2810.30.65.49 – 10.30.65.6210.30.65.63
2110.30.65.64/2810.30.65.65 – 10.30.65.7810.30.65.79
2210.30.65.80/2810.30.65.81 – 10.30.65.9410.30.65.95
2310.30.65.96/2810.30.65.97 – 10.30.65.11010.30.65.111
2410.30.65.112/2810.30.65.113 – 10.30.65.12610.30.65.127
2510.30.65.128/2810.30.65.129 – 10.30.65.14210.30.65.143
2610.30.65.144/2810.30.65.145 – 10.30.65.15810.30.65.159
2710.30.65.160/2810.30.65.161 – 10.30.65.17410.30.65.175
2810.30.65.176/2810.30.65.177 – 10.30.65.19010.30.65.191
2910.30.65.192/2810.30.65.193 – 10.30.65.20610.30.65.207
3010.30.65.208/2810.30.65.209 – 10.30.65.22210.30.65.223
3110.30.65.224/2810.30.65.225 – 10.30.65.23810.30.65.239
3210.30.65.240/2810.30.65.241 – 10.30.65.25410.30.65.255
3310.30.66.0/2810.30.66.1 – 10.30.66.1410.30.66.15
3410.30.66.16/2810.30.66.17 – 10.30.66.3010.30.66.31
3510.30.66.32/2810.30.66.33 – 10.30.66.4610.30.66.47
3610.30.66.48/2810.30.66.49 – 10.30.66.6210.30.66.63
3710.30.66.64/2810.30.66.65 – 10.30.66.7810.30.66.79
3810.30.66.80/2810.30.66.81 – 10.30.66.9410.30.66.95
3910.30.66.96/2810.30.66.97 – 10.30.66.11010.30.66.111
4010.30.66.112/2810.30.66.113 – 10.30.66.12610.30.66.127
4110.30.66.128/2810.30.66.129 – 10.30.66.14210.30.66.143
4210.30.66.144/2810.30.66.145 – 10.30.66.15810.30.66.159
4310.30.66.160/2810.30.66.161 – 10.30.66.17410.30.66.175
4410.30.66.176/2810.30.66.177 – 10.30.66.19010.30.66.191
4510.30.66.192/2810.30.66.193 – 10.30.66.20610.30.66.207
4610.30.66.208/2810.30.66.209 – 10.30.66.22210.30.66.223
4710.30.66.224/2810.30.66.225 – 10.30.66.23810.30.66.239
4810.30.66.240/2810.30.66.241 – 10.30.66.25410.30.66.255
4910.30.67.0/2810.30.67.1 – 10.30.67.1410.30.67.15
5010.30.67.16/2810.30.67.17 – 10.30.67.3010.30.67.31
5110.30.67.32/2810.30.67.33 – 10.30.67.4610.30.67.47
5210.30.67.48/2810.30.67.49 – 10.30.67.6210.30.67.63
5310.30.67.64/2810.30.67.65 – 10.30.67.7810.30.67.79
5410.30.67.80/2810.30.67.81 – 10.30.67.9410.30.67.95
5510.30.67.96/2810.30.67.97 – 10.30.67.11010.30.67.111
5610.30.67.112/2810.30.67.113 – 10.30.67.12610.30.67.127
5710.30.67.128/2810.30.67.129 – 10.30.67.14210.30.67.143
5810.30.67.144/2810.30.67.145 – 10.30.67.15810.30.67.159
5910.30.67.160/2810.30.67.161 – 10.30.67.17410.30.67.175
6010.30.67.176/2810.30.67.177 – 10.30.67.19010.30.67.191
6110.30.67.192/2810.30.67.193 – 10.30.67.20610.30.67.207
6210.30.67.208/2810.30.67.209 – 10.30.67.22210.30.67.223
6310.30.67.224/2810.30.67.225 – 10.30.67.23810.30.67.239
6410.30.67.240/2810.30.67.241 – 10.30.67.25410.30.67.255
6510.30.68.0/2810.30.68.1 – 10.30.68.1410.30.68.15
6610.30.68.16/2810.30.68.17 – 10.30.68.3010.30.68.31
6710.30.68.32/2810.30.68.33 – 10.30.68.4610.30.68.47
6810.30.68.48/2810.30.68.49 – 10.30.68.6210.30.68.63
6910.30.68.64/2810.30.68.65 – 10.30.68.7810.30.68.79
7010.30.68.80/2810.30.68.81 – 10.30.68.9410.30.68.95
7110.30.68.96/2810.30.68.97 – 10.30.68.11010.30.68.111
7210.30.68.112/2810.30.68.113 – 10.30.68.12610.30.68.127
7310.30.68.128/2810.30.68.129 – 10.30.68.14210.30.68.143
7410.30.68.144/2810.30.68.145 – 10.30.68.15810.30.68.159
7510.30.68.160/2810.30.68.161 – 10.30.68.17410.30.68.175
7610.30.68.176/2810.30.68.177 – 10.30.68.19010.30.68.191
7710.30.68.192/2810.30.68.193 – 10.30.68.20610.30.68.207
7810.30.68.208/2810.30.68.209 – 10.30.68.22210.30.68.223
7910.30.68.224/2810.30.68.225 – 10.30.68.23810.30.68.239
8010.30.68.240/2810.30.68.241 – 10.30.68.25410.30.68.255
8110.30.69.0/2810.30.69.1 – 10.30.69.1410.30.69.15
8210.30.69.16/2810.30.69.17 – 10.30.69.3010.30.69.31
8310.30.69.32/2810.30.69.33 – 10.30.69.4610.30.69.47
8410.30.69.48/2810.30.69.49 – 10.30.69.6210.30.69.63
8510.30.69.64/2810.30.69.65 – 10.30.69.7810.30.69.79
8610.30.69.80/2810.30.69.81 – 10.30.69.9410.30.69.95
8710.30.69.96/2810.30.69.97 – 10.30.69.11010.30.69.111
8810.30.69.112/2810.30.69.113 – 10.30.69.12610.30.69.127
8910.30.69.128/2810.30.69.129 – 10.30.69.14210.30.69.143
9010.30.69.144/2810.30.69.145 – 10.30.69.15810.30.69.159
9110.30.69.160/2810.30.69.161 – 10.30.69.17410.30.69.175
9210.30.69.176/2810.30.69.177 – 10.30.69.19010.30.69.191
9310.30.69.192/2810.30.69.193 – 10.30.69.20610.30.69.207
9410.30.69.208/2810.30.69.209 – 10.30.69.22210.30.69.223
9510.30.69.224/2810.30.69.225 – 10.30.69.23810.30.69.239
9610.30.69.240/2810.30.69.241 – 10.30.69.25410.30.69.255
9710.30.70.0/2810.30.70.1 – 10.30.70.1410.30.70.15
9810.30.70.16/2810.30.70.17 – 10.30.70.3010.30.70.31
9910.30.70.32/2810.30.70.33 – 10.30.70.4610.30.70.47
10010.30.70.48/2810.30.70.49 – 10.30.70.6210.30.70.63
10110.30.70.64/2810.30.70.65 – 10.30.70.7810.30.70.79
10210.30.70.80/2810.30.70.81 – 10.30.70.9410.30.70.95
10310.30.70.96/2810.30.70.97 – 10.30.70.11010.30.70.111
10410.30.70.112/2810.30.70.113 – 10.30.70.12610.30.70.127
10510.30.70.128/2810.30.70.129 – 10.30.70.14210.30.70.143
10610.30.70.144/2810.30.70.145 – 10.30.70.15810.30.70.159
10710.30.70.160/2810.30.70.161 – 10.30.70.17410.30.70.175
10810.30.70.176/2810.30.70.177 – 10.30.70.19010.30.70.191
10910.30.70.192/2810.30.70.193 – 10.30.70.20610.30.70.207
11010.30.70.208/2810.30.70.209 – 10.30.70.22210.30.70.223
11110.30.70.224/2810.30.70.225 – 10.30.70.23810.30.70.239
11210.30.70.240/2810.30.70.241 – 10.30.70.25410.30.70.255
11310.30.71.0/2810.30.71.1 – 10.30.71.1410.30.71.15
11410.30.71.16/2810.30.71.17 – 10.30.71.3010.30.71.31
11510.30.71.32/2810.30.71.33 – 10.30.71.4610.30.71.47
11610.30.71.48/2810.30.71.49 – 10.30.71.6210.30.71.63
11710.30.71.64/2810.30.71.65 – 10.30.71.7810.30.71.79
11810.30.71.80/2810.30.71.81 – 10.30.71.9410.30.71.95
11910.30.71.96/2810.30.71.97 – 10.30.71.11010.30.71.111
12010.30.71.112/2810.30.71.113 – 10.30.71.12610.30.71.127
12110.30.71.128/2810.30.71.129 – 10.30.71.14210.30.71.143
12210.30.71.144/2810.30.71.145 – 10.30.71.15810.30.71.159
12310.30.71.160/2810.30.71.161 – 10.30.71.17410.30.71.175
12410.30.71.176/2810.30.71.177 – 10.30.71.19010.30.71.191
12510.30.71.192/2810.30.71.193 – 10.30.71.20610.30.71.207
12610.30.71.208/2810.30.71.209 – 10.30.71.22210.30.71.223
12710.30.71.224/2810.30.71.225 – 10.30.71.23810.30.71.239
12810.30.71.240/2810.30.71.241 – 10.30.71.25410.30.71.255
12910.30.72.0/2810.30.72.1 – 10.30.72.1410.30.72.15
13010.30.72.16/2810.30.72.17 – 10.30.72.3010.30.72.31
13110.30.72.32/2810.30.72.33 – 10.30.72.4610.30.72.47
13210.30.72.48/2810.30.72.49 – 10.30.72.6210.30.72.63
13310.30.72.64/2810.30.72.65 – 10.30.72.7810.30.72.79
13410.30.72.80/2810.30.72.81 – 10.30.72.9410.30.72.95
13510.30.72.96/2810.30.72.97 – 10.30.72.11010.30.72.111
13610.30.72.112/2810.30.72.113 – 10.30.72.12610.30.72.127
13710.30.72.128/2810.30.72.129 – 10.30.72.14210.30.72.143
13810.30.72.144/2810.30.72.145 – 10.30.72.15810.30.72.159
13910.30.72.160/2810.30.72.161 – 10.30.72.17410.30.72.175
14010.30.72.176/2810.30.72.177 – 10.30.72.19010.30.72.191
14110.30.72.192/2810.30.72.193 – 10.30.72.20610.30.72.207
14210.30.72.208/2810.30.72.209 – 10.30.72.22210.30.72.223
14310.30.72.224/2810.30.72.225 – 10.30.72.23810.30.72.239
14410.30.72.240/2810.30.72.241 – 10.30.72.25410.30.72.255
14510.30.73.0/2810.30.73.1 – 10.30.73.1410.30.73.15
14610.30.73.16/2810.30.73.17 – 10.30.73.3010.30.73.31
14710.30.73.32/2810.30.73.33 – 10.30.73.4610.30.73.47
14810.30.73.48/2810.30.73.49 – 10.30.73.6210.30.73.63
14910.30.73.64/2810.30.73.65 – 10.30.73.7810.30.73.79
15010.30.73.80/2810.30.73.81 – 10.30.73.9410.30.73.95
15110.30.73.96/2810.30.73.97 – 10.30.73.11010.30.73.111
15210.30.73.112/2810.30.73.113 – 10.30.73.12610.30.73.127
15310.30.73.128/2810.30.73.129 – 10.30.73.14210.30.73.143
15410.30.73.144/2810.30.73.145 – 10.30.73.15810.30.73.159
15510.30.73.160/2810.30.73.161 – 10.30.73.17410.30.73.175
15610.30.73.176/2810.30.73.177 – 10.30.73.19010.30.73.191
15710.30.73.192/2810.30.73.193 – 10.30.73.20610.30.73.207
15810.30.73.208/2810.30.73.209 – 10.30.73.22210.30.73.223
15910.30.73.224/2810.30.73.225 – 10.30.73.23810.30.73.239
16010.30.73.240/2810.30.73.241 – 10.30.73.25410.30.73.255
16110.30.74.0/2810.30.74.1 – 10.30.74.1410.30.74.15
16210.30.74.16/2810.30.74.17 – 10.30.74.3010.30.74.31
16310.30.74.32/2810.30.74.33 – 10.30.74.4610.30.74.47
16410.30.74.48/2810.30.74.49 – 10.30.74.6210.30.74.63
16510.30.74.64/2810.30.74.65 – 10.30.74.7810.30.74.79
16610.30.74.80/2810.30.74.81 – 10.30.74.9410.30.74.95
16710.30.74.96/2810.30.74.97 – 10.30.74.11010.30.74.111
16810.30.74.112/2810.30.74.113 – 10.30.74.12610.30.74.127
16910.30.74.128/2810.30.74.129 – 10.30.74.14210.30.74.143
17010.30.74.144/2810.30.74.145 – 10.30.74.15810.30.74.159
17110.30.74.160/2810.30.74.161 – 10.30.74.17410.30.74.175
17210.30.74.176/2810.30.74.177 – 10.30.74.19010.30.74.191
17310.30.74.192/2810.30.74.193 – 10.30.74.20610.30.74.207
17410.30.74.208/2810.30.74.209 – 10.30.74.22210.30.74.223
17510.30.74.224/2810.30.74.225 – 10.30.74.23810.30.74.239
17610.30.74.240/2810.30.74.241 – 10.30.74.25410.30.74.255
17710.30.75.0/2810.30.75.1 – 10.30.75.1410.30.75.15
17810.30.75.16/2810.30.75.17 – 10.30.75.3010.30.75.31
17910.30.75.32/2810.30.75.33 – 10.30.75.4610.30.75.47
18010.30.75.48/2810.30.75.49 – 10.30.75.6210.30.75.63
18110.30.75.64/2810.30.75.65 – 10.30.75.7810.30.75.79
18210.30.75.80/2810.30.75.81 – 10.30.75.9410.30.75.95
18310.30.75.96/2810.30.75.97 – 10.30.75.11010.30.75.111
18410.30.75.112/2810.30.75.113 – 10.30.75.12610.30.75.127
18510.30.75.128/2810.30.75.129 – 10.30.75.14210.30.75.143
18610.30.75.144/2810.30.75.145 – 10.30.75.15810.30.75.159
18710.30.75.160/2810.30.75.161 – 10.30.75.17410.30.75.175
18810.30.75.176/2810.30.75.177 – 10.30.75.19010.30.75.191
18910.30.75.192/2810.30.75.193 – 10.30.75.20610.30.75.207
19010.30.75.208/2810.30.75.209 – 10.30.75.22210.30.75.223
19110.30.75.224/2810.30.75.225 – 10.30.75.23810.30.75.239
19210.30.75.240/2810.30.75.241 – 10.30.75.25410.30.75.255
19310.30.76.0/2810.30.76.1 – 10.30.76.1410.30.76.15
19410.30.76.16/2810.30.76.17 – 10.30.76.3010.30.76.31
19510.30.76.32/2810.30.76.33 – 10.30.76.4610.30.76.47
19610.30.76.48/2810.30.76.49 – 10.30.76.6210.30.76.63
19710.30.76.64/2810.30.76.65 – 10.30.76.7810.30.76.79
19810.30.76.80/2810.30.76.81 – 10.30.76.9410.30.76.95
19910.30.76.96/2810.30.76.97 – 10.30.76.11010.30.76.111
20010.30.76.112/2810.30.76.113 – 10.30.76.12610.30.76.127
20110.30.76.128/2810.30.76.129 – 10.30.76.14210.30.76.143
20210.30.76.144/2810.30.76.145 – 10.30.76.15810.30.76.159
20310.30.76.160/2810.30.76.161 – 10.30.76.17410.30.76.175
20410.30.76.176/2810.30.76.177 – 10.30.76.19010.30.76.191
20510.30.76.192/2810.30.76.193 – 10.30.76.20610.30.76.207
20610.30.76.208/2810.30.76.209 – 10.30.76.22210.30.76.223
20710.30.76.224/2810.30.76.225 – 10.30.76.23810.30.76.239
20810.30.76.240/2810.30.76.241 – 10.30.76.25410.30.76.255
20910.30.77.0/2810.30.77.1 – 10.30.77.1410.30.77.15
21010.30.77.16/2810.30.77.17 – 10.30.77.3010.30.77.31
21110.30.77.32/2810.30.77.33 – 10.30.77.4610.30.77.47
21210.30.77.48/2810.30.77.49 – 10.30.77.6210.30.77.63
21310.30.77.64/2810.30.77.65 – 10.30.77.7810.30.77.79
21410.30.77.80/2810.30.77.81 – 10.30.77.9410.30.77.95
21510.30.77.96/2810.30.77.97 – 10.30.77.11010.30.77.111
21610.30.77.112/2810.30.77.113 – 10.30.77.12610.30.77.127
21710.30.77.128/2810.30.77.129 – 10.30.77.14210.30.77.143
21810.30.77.144/2810.30.77.145 – 10.30.77.15810.30.77.159
21910.30.77.160/2810.30.77.161 – 10.30.77.17410.30.77.175
22010.30.77.176/2810.30.77.177 – 10.30.77.19010.30.77.191
22110.30.77.192/2810.30.77.193 – 10.30.77.20610.30.77.207
22210.30.77.208/2810.30.77.209 – 10.30.77.22210.30.77.223
22310.30.77.224/2810.30.77.225 – 10.30.77.23810.30.77.239
22410.30.77.240/2810.30.77.241 – 10.30.77.25410.30.77.255
22510.30.78.0/2810.30.78.1 – 10.30.78.1410.30.78.15
22610.30.78.16/2810.30.78.17 – 10.30.78.3010.30.78.31
22710.30.78.32/2810.30.78.33 – 10.30.78.4610.30.78.47
22810.30.78.48/2810.30.78.49 – 10.30.78.6210.30.78.63
22910.30.78.64/2810.30.78.65 – 10.30.78.7810.30.78.79
23010.30.78.80/2810.30.78.81 – 10.30.78.9410.30.78.95
23110.30.78.96/2810.30.78.97 – 10.30.78.11010.30.78.111
23210.30.78.112/2810.30.78.113 – 10.30.78.12610.30.78.127
23310.30.78.128/2810.30.78.129 – 10.30.78.14210.30.78.143
23410.30.78.144/2810.30.78.145 – 10.30.78.15810.30.78.159
23510.30.78.160/2810.30.78.161 – 10.30.78.17410.30.78.175
23610.30.78.176/2810.30.78.177 – 10.30.78.19010.30.78.191
23710.30.78.192/2810.30.78.193 – 10.30.78.20610.30.78.207
23810.30.78.208/2810.30.78.209 – 10.30.78.22210.30.78.223
23910.30.78.224/2810.30.78.225 – 10.30.78.23810.30.78.239
24010.30.78.240/2810.30.78.241 – 10.30.78.25410.30.78.255
24110.30.79.0/2810.30.79.1 – 10.30.79.1410.30.79.15
24210.30.79.16/2810.30.79.17 – 10.30.79.3010.30.79.31
24310.30.79.32/2810.30.79.33 – 10.30.79.4610.30.79.47
24410.30.79.48/2810.30.79.49 – 10.30.79.6210.30.79.63
24510.30.79.64/2810.30.79.65 – 10.30.79.7810.30.79.79
24610.30.79.80/2810.30.79.81 – 10.30.79.9410.30.79.95
24710.30.79.96/2810.30.79.97 – 10.30.79.11010.30.79.111
24810.30.79.112/2810.30.79.113 – 10.30.79.12610.30.79.127
24910.30.79.128/2810.30.79.129 – 10.30.79.14210.30.79.143
25010.30.79.144/2810.30.79.145 – 10.30.79.15810.30.79.159
25110.30.79.160/2810.30.79.161 – 10.30.79.17410.30.79.175
25210.30.79.176/2810.30.79.177 – 10.30.79.19010.30.79.191
25310.30.79.192/2810.30.79.193 – 10.30.79.20610.30.79.207
25410.30.79.208/2810.30.79.209 – 10.30.79.22210.30.79.223
25510.30.79.224/2810.30.79.225 – 10.30.79.23810.30.79.239
25610.30.79.240/2810.30.79.241 – 10.30.79.25410.30.79.255

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 →