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)10.82.0.0/16
network10.82.0.0/16
broadcast10.82.255.255
first host10.82.0.1
last host10.82.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.82.0.0/16
address00001010.01010010.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.01010010.00000000.00000000
broadcast00001010.01010010.11111111.11111111
green = network part, grey = host part
hex0x0a520000
decimal173146112
reverse dns0.0.82.10.in-addr.arpa
ipv4-mapped::ffff:a52:0

/16 split into /28 · 4,096 subnets

close ×
#networkhost rangebroadcast
110.82.0.0/2810.82.0.1 – 10.82.0.1410.82.0.15
210.82.0.16/2810.82.0.17 – 10.82.0.3010.82.0.31
310.82.0.32/2810.82.0.33 – 10.82.0.4610.82.0.47
410.82.0.48/2810.82.0.49 – 10.82.0.6210.82.0.63
510.82.0.64/2810.82.0.65 – 10.82.0.7810.82.0.79
610.82.0.80/2810.82.0.81 – 10.82.0.9410.82.0.95
710.82.0.96/2810.82.0.97 – 10.82.0.11010.82.0.111
810.82.0.112/2810.82.0.113 – 10.82.0.12610.82.0.127
910.82.0.128/2810.82.0.129 – 10.82.0.14210.82.0.143
1010.82.0.144/2810.82.0.145 – 10.82.0.15810.82.0.159
1110.82.0.160/2810.82.0.161 – 10.82.0.17410.82.0.175
1210.82.0.176/2810.82.0.177 – 10.82.0.19010.82.0.191
1310.82.0.192/2810.82.0.193 – 10.82.0.20610.82.0.207
1410.82.0.208/2810.82.0.209 – 10.82.0.22210.82.0.223
1510.82.0.224/2810.82.0.225 – 10.82.0.23810.82.0.239
1610.82.0.240/2810.82.0.241 – 10.82.0.25410.82.0.255
1710.82.1.0/2810.82.1.1 – 10.82.1.1410.82.1.15
1810.82.1.16/2810.82.1.17 – 10.82.1.3010.82.1.31
1910.82.1.32/2810.82.1.33 – 10.82.1.4610.82.1.47
2010.82.1.48/2810.82.1.49 – 10.82.1.6210.82.1.63
2110.82.1.64/2810.82.1.65 – 10.82.1.7810.82.1.79
2210.82.1.80/2810.82.1.81 – 10.82.1.9410.82.1.95
2310.82.1.96/2810.82.1.97 – 10.82.1.11010.82.1.111
2410.82.1.112/2810.82.1.113 – 10.82.1.12610.82.1.127
2510.82.1.128/2810.82.1.129 – 10.82.1.14210.82.1.143
2610.82.1.144/2810.82.1.145 – 10.82.1.15810.82.1.159
2710.82.1.160/2810.82.1.161 – 10.82.1.17410.82.1.175
2810.82.1.176/2810.82.1.177 – 10.82.1.19010.82.1.191
2910.82.1.192/2810.82.1.193 – 10.82.1.20610.82.1.207
3010.82.1.208/2810.82.1.209 – 10.82.1.22210.82.1.223
3110.82.1.224/2810.82.1.225 – 10.82.1.23810.82.1.239
3210.82.1.240/2810.82.1.241 – 10.82.1.25410.82.1.255
3310.82.2.0/2810.82.2.1 – 10.82.2.1410.82.2.15
3410.82.2.16/2810.82.2.17 – 10.82.2.3010.82.2.31
3510.82.2.32/2810.82.2.33 – 10.82.2.4610.82.2.47
3610.82.2.48/2810.82.2.49 – 10.82.2.6210.82.2.63
3710.82.2.64/2810.82.2.65 – 10.82.2.7810.82.2.79
3810.82.2.80/2810.82.2.81 – 10.82.2.9410.82.2.95
3910.82.2.96/2810.82.2.97 – 10.82.2.11010.82.2.111
4010.82.2.112/2810.82.2.113 – 10.82.2.12610.82.2.127
4110.82.2.128/2810.82.2.129 – 10.82.2.14210.82.2.143
4210.82.2.144/2810.82.2.145 – 10.82.2.15810.82.2.159
4310.82.2.160/2810.82.2.161 – 10.82.2.17410.82.2.175
4410.82.2.176/2810.82.2.177 – 10.82.2.19010.82.2.191
4510.82.2.192/2810.82.2.193 – 10.82.2.20610.82.2.207
4610.82.2.208/2810.82.2.209 – 10.82.2.22210.82.2.223
4710.82.2.224/2810.82.2.225 – 10.82.2.23810.82.2.239
4810.82.2.240/2810.82.2.241 – 10.82.2.25410.82.2.255
4910.82.3.0/2810.82.3.1 – 10.82.3.1410.82.3.15
5010.82.3.16/2810.82.3.17 – 10.82.3.3010.82.3.31
5110.82.3.32/2810.82.3.33 – 10.82.3.4610.82.3.47
5210.82.3.48/2810.82.3.49 – 10.82.3.6210.82.3.63
5310.82.3.64/2810.82.3.65 – 10.82.3.7810.82.3.79
5410.82.3.80/2810.82.3.81 – 10.82.3.9410.82.3.95
5510.82.3.96/2810.82.3.97 – 10.82.3.11010.82.3.111
5610.82.3.112/2810.82.3.113 – 10.82.3.12610.82.3.127
5710.82.3.128/2810.82.3.129 – 10.82.3.14210.82.3.143
5810.82.3.144/2810.82.3.145 – 10.82.3.15810.82.3.159
5910.82.3.160/2810.82.3.161 – 10.82.3.17410.82.3.175
6010.82.3.176/2810.82.3.177 – 10.82.3.19010.82.3.191
6110.82.3.192/2810.82.3.193 – 10.82.3.20610.82.3.207
6210.82.3.208/2810.82.3.209 – 10.82.3.22210.82.3.223
6310.82.3.224/2810.82.3.225 – 10.82.3.23810.82.3.239
6410.82.3.240/2810.82.3.241 – 10.82.3.25410.82.3.255
6510.82.4.0/2810.82.4.1 – 10.82.4.1410.82.4.15
6610.82.4.16/2810.82.4.17 – 10.82.4.3010.82.4.31
6710.82.4.32/2810.82.4.33 – 10.82.4.4610.82.4.47
6810.82.4.48/2810.82.4.49 – 10.82.4.6210.82.4.63
6910.82.4.64/2810.82.4.65 – 10.82.4.7810.82.4.79
7010.82.4.80/2810.82.4.81 – 10.82.4.9410.82.4.95
7110.82.4.96/2810.82.4.97 – 10.82.4.11010.82.4.111
7210.82.4.112/2810.82.4.113 – 10.82.4.12610.82.4.127
7310.82.4.128/2810.82.4.129 – 10.82.4.14210.82.4.143
7410.82.4.144/2810.82.4.145 – 10.82.4.15810.82.4.159
7510.82.4.160/2810.82.4.161 – 10.82.4.17410.82.4.175
7610.82.4.176/2810.82.4.177 – 10.82.4.19010.82.4.191
7710.82.4.192/2810.82.4.193 – 10.82.4.20610.82.4.207
7810.82.4.208/2810.82.4.209 – 10.82.4.22210.82.4.223
7910.82.4.224/2810.82.4.225 – 10.82.4.23810.82.4.239
8010.82.4.240/2810.82.4.241 – 10.82.4.25410.82.4.255
8110.82.5.0/2810.82.5.1 – 10.82.5.1410.82.5.15
8210.82.5.16/2810.82.5.17 – 10.82.5.3010.82.5.31
8310.82.5.32/2810.82.5.33 – 10.82.5.4610.82.5.47
8410.82.5.48/2810.82.5.49 – 10.82.5.6210.82.5.63
8510.82.5.64/2810.82.5.65 – 10.82.5.7810.82.5.79
8610.82.5.80/2810.82.5.81 – 10.82.5.9410.82.5.95
8710.82.5.96/2810.82.5.97 – 10.82.5.11010.82.5.111
8810.82.5.112/2810.82.5.113 – 10.82.5.12610.82.5.127
8910.82.5.128/2810.82.5.129 – 10.82.5.14210.82.5.143
9010.82.5.144/2810.82.5.145 – 10.82.5.15810.82.5.159
9110.82.5.160/2810.82.5.161 – 10.82.5.17410.82.5.175
9210.82.5.176/2810.82.5.177 – 10.82.5.19010.82.5.191
9310.82.5.192/2810.82.5.193 – 10.82.5.20610.82.5.207
9410.82.5.208/2810.82.5.209 – 10.82.5.22210.82.5.223
9510.82.5.224/2810.82.5.225 – 10.82.5.23810.82.5.239
9610.82.5.240/2810.82.5.241 – 10.82.5.25410.82.5.255
9710.82.6.0/2810.82.6.1 – 10.82.6.1410.82.6.15
9810.82.6.16/2810.82.6.17 – 10.82.6.3010.82.6.31
9910.82.6.32/2810.82.6.33 – 10.82.6.4610.82.6.47
10010.82.6.48/2810.82.6.49 – 10.82.6.6210.82.6.63
10110.82.6.64/2810.82.6.65 – 10.82.6.7810.82.6.79
10210.82.6.80/2810.82.6.81 – 10.82.6.9410.82.6.95
10310.82.6.96/2810.82.6.97 – 10.82.6.11010.82.6.111
10410.82.6.112/2810.82.6.113 – 10.82.6.12610.82.6.127
10510.82.6.128/2810.82.6.129 – 10.82.6.14210.82.6.143
10610.82.6.144/2810.82.6.145 – 10.82.6.15810.82.6.159
10710.82.6.160/2810.82.6.161 – 10.82.6.17410.82.6.175
10810.82.6.176/2810.82.6.177 – 10.82.6.19010.82.6.191
10910.82.6.192/2810.82.6.193 – 10.82.6.20610.82.6.207
11010.82.6.208/2810.82.6.209 – 10.82.6.22210.82.6.223
11110.82.6.224/2810.82.6.225 – 10.82.6.23810.82.6.239
11210.82.6.240/2810.82.6.241 – 10.82.6.25410.82.6.255
11310.82.7.0/2810.82.7.1 – 10.82.7.1410.82.7.15
11410.82.7.16/2810.82.7.17 – 10.82.7.3010.82.7.31
11510.82.7.32/2810.82.7.33 – 10.82.7.4610.82.7.47
11610.82.7.48/2810.82.7.49 – 10.82.7.6210.82.7.63
11710.82.7.64/2810.82.7.65 – 10.82.7.7810.82.7.79
11810.82.7.80/2810.82.7.81 – 10.82.7.9410.82.7.95
11910.82.7.96/2810.82.7.97 – 10.82.7.11010.82.7.111
12010.82.7.112/2810.82.7.113 – 10.82.7.12610.82.7.127
12110.82.7.128/2810.82.7.129 – 10.82.7.14210.82.7.143
12210.82.7.144/2810.82.7.145 – 10.82.7.15810.82.7.159
12310.82.7.160/2810.82.7.161 – 10.82.7.17410.82.7.175
12410.82.7.176/2810.82.7.177 – 10.82.7.19010.82.7.191
12510.82.7.192/2810.82.7.193 – 10.82.7.20610.82.7.207
12610.82.7.208/2810.82.7.209 – 10.82.7.22210.82.7.223
12710.82.7.224/2810.82.7.225 – 10.82.7.23810.82.7.239
12810.82.7.240/2810.82.7.241 – 10.82.7.25410.82.7.255
12910.82.8.0/2810.82.8.1 – 10.82.8.1410.82.8.15
13010.82.8.16/2810.82.8.17 – 10.82.8.3010.82.8.31
13110.82.8.32/2810.82.8.33 – 10.82.8.4610.82.8.47
13210.82.8.48/2810.82.8.49 – 10.82.8.6210.82.8.63
13310.82.8.64/2810.82.8.65 – 10.82.8.7810.82.8.79
13410.82.8.80/2810.82.8.81 – 10.82.8.9410.82.8.95
13510.82.8.96/2810.82.8.97 – 10.82.8.11010.82.8.111
13610.82.8.112/2810.82.8.113 – 10.82.8.12610.82.8.127
13710.82.8.128/2810.82.8.129 – 10.82.8.14210.82.8.143
13810.82.8.144/2810.82.8.145 – 10.82.8.15810.82.8.159
13910.82.8.160/2810.82.8.161 – 10.82.8.17410.82.8.175
14010.82.8.176/2810.82.8.177 – 10.82.8.19010.82.8.191
14110.82.8.192/2810.82.8.193 – 10.82.8.20610.82.8.207
14210.82.8.208/2810.82.8.209 – 10.82.8.22210.82.8.223
14310.82.8.224/2810.82.8.225 – 10.82.8.23810.82.8.239
14410.82.8.240/2810.82.8.241 – 10.82.8.25410.82.8.255
14510.82.9.0/2810.82.9.1 – 10.82.9.1410.82.9.15
14610.82.9.16/2810.82.9.17 – 10.82.9.3010.82.9.31
14710.82.9.32/2810.82.9.33 – 10.82.9.4610.82.9.47
14810.82.9.48/2810.82.9.49 – 10.82.9.6210.82.9.63
14910.82.9.64/2810.82.9.65 – 10.82.9.7810.82.9.79
15010.82.9.80/2810.82.9.81 – 10.82.9.9410.82.9.95
15110.82.9.96/2810.82.9.97 – 10.82.9.11010.82.9.111
15210.82.9.112/2810.82.9.113 – 10.82.9.12610.82.9.127
15310.82.9.128/2810.82.9.129 – 10.82.9.14210.82.9.143
15410.82.9.144/2810.82.9.145 – 10.82.9.15810.82.9.159
15510.82.9.160/2810.82.9.161 – 10.82.9.17410.82.9.175
15610.82.9.176/2810.82.9.177 – 10.82.9.19010.82.9.191
15710.82.9.192/2810.82.9.193 – 10.82.9.20610.82.9.207
15810.82.9.208/2810.82.9.209 – 10.82.9.22210.82.9.223
15910.82.9.224/2810.82.9.225 – 10.82.9.23810.82.9.239
16010.82.9.240/2810.82.9.241 – 10.82.9.25410.82.9.255
16110.82.10.0/2810.82.10.1 – 10.82.10.1410.82.10.15
16210.82.10.16/2810.82.10.17 – 10.82.10.3010.82.10.31
16310.82.10.32/2810.82.10.33 – 10.82.10.4610.82.10.47
16410.82.10.48/2810.82.10.49 – 10.82.10.6210.82.10.63
16510.82.10.64/2810.82.10.65 – 10.82.10.7810.82.10.79
16610.82.10.80/2810.82.10.81 – 10.82.10.9410.82.10.95
16710.82.10.96/2810.82.10.97 – 10.82.10.11010.82.10.111
16810.82.10.112/2810.82.10.113 – 10.82.10.12610.82.10.127
16910.82.10.128/2810.82.10.129 – 10.82.10.14210.82.10.143
17010.82.10.144/2810.82.10.145 – 10.82.10.15810.82.10.159
17110.82.10.160/2810.82.10.161 – 10.82.10.17410.82.10.175
17210.82.10.176/2810.82.10.177 – 10.82.10.19010.82.10.191
17310.82.10.192/2810.82.10.193 – 10.82.10.20610.82.10.207
17410.82.10.208/2810.82.10.209 – 10.82.10.22210.82.10.223
17510.82.10.224/2810.82.10.225 – 10.82.10.23810.82.10.239
17610.82.10.240/2810.82.10.241 – 10.82.10.25410.82.10.255
17710.82.11.0/2810.82.11.1 – 10.82.11.1410.82.11.15
17810.82.11.16/2810.82.11.17 – 10.82.11.3010.82.11.31
17910.82.11.32/2810.82.11.33 – 10.82.11.4610.82.11.47
18010.82.11.48/2810.82.11.49 – 10.82.11.6210.82.11.63
18110.82.11.64/2810.82.11.65 – 10.82.11.7810.82.11.79
18210.82.11.80/2810.82.11.81 – 10.82.11.9410.82.11.95
18310.82.11.96/2810.82.11.97 – 10.82.11.11010.82.11.111
18410.82.11.112/2810.82.11.113 – 10.82.11.12610.82.11.127
18510.82.11.128/2810.82.11.129 – 10.82.11.14210.82.11.143
18610.82.11.144/2810.82.11.145 – 10.82.11.15810.82.11.159
18710.82.11.160/2810.82.11.161 – 10.82.11.17410.82.11.175
18810.82.11.176/2810.82.11.177 – 10.82.11.19010.82.11.191
18910.82.11.192/2810.82.11.193 – 10.82.11.20610.82.11.207
19010.82.11.208/2810.82.11.209 – 10.82.11.22210.82.11.223
19110.82.11.224/2810.82.11.225 – 10.82.11.23810.82.11.239
19210.82.11.240/2810.82.11.241 – 10.82.11.25410.82.11.255
19310.82.12.0/2810.82.12.1 – 10.82.12.1410.82.12.15
19410.82.12.16/2810.82.12.17 – 10.82.12.3010.82.12.31
19510.82.12.32/2810.82.12.33 – 10.82.12.4610.82.12.47
19610.82.12.48/2810.82.12.49 – 10.82.12.6210.82.12.63
19710.82.12.64/2810.82.12.65 – 10.82.12.7810.82.12.79
19810.82.12.80/2810.82.12.81 – 10.82.12.9410.82.12.95
19910.82.12.96/2810.82.12.97 – 10.82.12.11010.82.12.111
20010.82.12.112/2810.82.12.113 – 10.82.12.12610.82.12.127
20110.82.12.128/2810.82.12.129 – 10.82.12.14210.82.12.143
20210.82.12.144/2810.82.12.145 – 10.82.12.15810.82.12.159
20310.82.12.160/2810.82.12.161 – 10.82.12.17410.82.12.175
20410.82.12.176/2810.82.12.177 – 10.82.12.19010.82.12.191
20510.82.12.192/2810.82.12.193 – 10.82.12.20610.82.12.207
20610.82.12.208/2810.82.12.209 – 10.82.12.22210.82.12.223
20710.82.12.224/2810.82.12.225 – 10.82.12.23810.82.12.239
20810.82.12.240/2810.82.12.241 – 10.82.12.25410.82.12.255
20910.82.13.0/2810.82.13.1 – 10.82.13.1410.82.13.15
21010.82.13.16/2810.82.13.17 – 10.82.13.3010.82.13.31
21110.82.13.32/2810.82.13.33 – 10.82.13.4610.82.13.47
21210.82.13.48/2810.82.13.49 – 10.82.13.6210.82.13.63
21310.82.13.64/2810.82.13.65 – 10.82.13.7810.82.13.79
21410.82.13.80/2810.82.13.81 – 10.82.13.9410.82.13.95
21510.82.13.96/2810.82.13.97 – 10.82.13.11010.82.13.111
21610.82.13.112/2810.82.13.113 – 10.82.13.12610.82.13.127
21710.82.13.128/2810.82.13.129 – 10.82.13.14210.82.13.143
21810.82.13.144/2810.82.13.145 – 10.82.13.15810.82.13.159
21910.82.13.160/2810.82.13.161 – 10.82.13.17410.82.13.175
22010.82.13.176/2810.82.13.177 – 10.82.13.19010.82.13.191
22110.82.13.192/2810.82.13.193 – 10.82.13.20610.82.13.207
22210.82.13.208/2810.82.13.209 – 10.82.13.22210.82.13.223
22310.82.13.224/2810.82.13.225 – 10.82.13.23810.82.13.239
22410.82.13.240/2810.82.13.241 – 10.82.13.25410.82.13.255
22510.82.14.0/2810.82.14.1 – 10.82.14.1410.82.14.15
22610.82.14.16/2810.82.14.17 – 10.82.14.3010.82.14.31
22710.82.14.32/2810.82.14.33 – 10.82.14.4610.82.14.47
22810.82.14.48/2810.82.14.49 – 10.82.14.6210.82.14.63
22910.82.14.64/2810.82.14.65 – 10.82.14.7810.82.14.79
23010.82.14.80/2810.82.14.81 – 10.82.14.9410.82.14.95
23110.82.14.96/2810.82.14.97 – 10.82.14.11010.82.14.111
23210.82.14.112/2810.82.14.113 – 10.82.14.12610.82.14.127
23310.82.14.128/2810.82.14.129 – 10.82.14.14210.82.14.143
23410.82.14.144/2810.82.14.145 – 10.82.14.15810.82.14.159
23510.82.14.160/2810.82.14.161 – 10.82.14.17410.82.14.175
23610.82.14.176/2810.82.14.177 – 10.82.14.19010.82.14.191
23710.82.14.192/2810.82.14.193 – 10.82.14.20610.82.14.207
23810.82.14.208/2810.82.14.209 – 10.82.14.22210.82.14.223
23910.82.14.224/2810.82.14.225 – 10.82.14.23810.82.14.239
24010.82.14.240/2810.82.14.241 – 10.82.14.25410.82.14.255
24110.82.15.0/2810.82.15.1 – 10.82.15.1410.82.15.15
24210.82.15.16/2810.82.15.17 – 10.82.15.3010.82.15.31
24310.82.15.32/2810.82.15.33 – 10.82.15.4610.82.15.47
24410.82.15.48/2810.82.15.49 – 10.82.15.6210.82.15.63
24510.82.15.64/2810.82.15.65 – 10.82.15.7810.82.15.79
24610.82.15.80/2810.82.15.81 – 10.82.15.9410.82.15.95
24710.82.15.96/2810.82.15.97 – 10.82.15.11010.82.15.111
24810.82.15.112/2810.82.15.113 – 10.82.15.12610.82.15.127
24910.82.15.128/2810.82.15.129 – 10.82.15.14210.82.15.143
25010.82.15.144/2810.82.15.145 – 10.82.15.15810.82.15.159
25110.82.15.160/2810.82.15.161 – 10.82.15.17410.82.15.175
25210.82.15.176/2810.82.15.177 – 10.82.15.19010.82.15.191
25310.82.15.192/2810.82.15.193 – 10.82.15.20610.82.15.207
25410.82.15.208/2810.82.15.209 – 10.82.15.22210.82.15.223
25510.82.15.224/2810.82.15.225 – 10.82.15.23810.82.15.239
25610.82.15.240/2810.82.15.241 – 10.82.15.25410.82.15.255

showing 256 of 4,096

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 →