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)10.7.192.0/21
network10.7.192.0/21
broadcast10.7.199.255
first host10.7.192.1
last host10.7.199.254
subnet mask255.255.248.0
wildcard0.0.7.255
addresses2,048
usable hosts2,046
classA
ipcalc 10.7.192.0/21
address00001010.00000111.11000000.00000000
subnet mask11111111.11111111.11111000.00000000
network00001010.00000111.11000000.00000000
broadcast00001010.00000111.11000111.11111111
green = network part, grey = host part
hex0x0a07c000
decimal168280064
reverse dns0.192.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:c000

/21 split into /29 · 256 subnets

close ×
#networkhost rangebroadcast
110.7.192.0/2910.7.192.1 – 10.7.192.610.7.192.7
210.7.192.8/2910.7.192.9 – 10.7.192.1410.7.192.15
310.7.192.16/2910.7.192.17 – 10.7.192.2210.7.192.23
410.7.192.24/2910.7.192.25 – 10.7.192.3010.7.192.31
510.7.192.32/2910.7.192.33 – 10.7.192.3810.7.192.39
610.7.192.40/2910.7.192.41 – 10.7.192.4610.7.192.47
710.7.192.48/2910.7.192.49 – 10.7.192.5410.7.192.55
810.7.192.56/2910.7.192.57 – 10.7.192.6210.7.192.63
910.7.192.64/2910.7.192.65 – 10.7.192.7010.7.192.71
1010.7.192.72/2910.7.192.73 – 10.7.192.7810.7.192.79
1110.7.192.80/2910.7.192.81 – 10.7.192.8610.7.192.87
1210.7.192.88/2910.7.192.89 – 10.7.192.9410.7.192.95
1310.7.192.96/2910.7.192.97 – 10.7.192.10210.7.192.103
1410.7.192.104/2910.7.192.105 – 10.7.192.11010.7.192.111
1510.7.192.112/2910.7.192.113 – 10.7.192.11810.7.192.119
1610.7.192.120/2910.7.192.121 – 10.7.192.12610.7.192.127
1710.7.192.128/2910.7.192.129 – 10.7.192.13410.7.192.135
1810.7.192.136/2910.7.192.137 – 10.7.192.14210.7.192.143
1910.7.192.144/2910.7.192.145 – 10.7.192.15010.7.192.151
2010.7.192.152/2910.7.192.153 – 10.7.192.15810.7.192.159
2110.7.192.160/2910.7.192.161 – 10.7.192.16610.7.192.167
2210.7.192.168/2910.7.192.169 – 10.7.192.17410.7.192.175
2310.7.192.176/2910.7.192.177 – 10.7.192.18210.7.192.183
2410.7.192.184/2910.7.192.185 – 10.7.192.19010.7.192.191
2510.7.192.192/2910.7.192.193 – 10.7.192.19810.7.192.199
2610.7.192.200/2910.7.192.201 – 10.7.192.20610.7.192.207
2710.7.192.208/2910.7.192.209 – 10.7.192.21410.7.192.215
2810.7.192.216/2910.7.192.217 – 10.7.192.22210.7.192.223
2910.7.192.224/2910.7.192.225 – 10.7.192.23010.7.192.231
3010.7.192.232/2910.7.192.233 – 10.7.192.23810.7.192.239
3110.7.192.240/2910.7.192.241 – 10.7.192.24610.7.192.247
3210.7.192.248/2910.7.192.249 – 10.7.192.25410.7.192.255
3310.7.193.0/2910.7.193.1 – 10.7.193.610.7.193.7
3410.7.193.8/2910.7.193.9 – 10.7.193.1410.7.193.15
3510.7.193.16/2910.7.193.17 – 10.7.193.2210.7.193.23
3610.7.193.24/2910.7.193.25 – 10.7.193.3010.7.193.31
3710.7.193.32/2910.7.193.33 – 10.7.193.3810.7.193.39
3810.7.193.40/2910.7.193.41 – 10.7.193.4610.7.193.47
3910.7.193.48/2910.7.193.49 – 10.7.193.5410.7.193.55
4010.7.193.56/2910.7.193.57 – 10.7.193.6210.7.193.63
4110.7.193.64/2910.7.193.65 – 10.7.193.7010.7.193.71
4210.7.193.72/2910.7.193.73 – 10.7.193.7810.7.193.79
4310.7.193.80/2910.7.193.81 – 10.7.193.8610.7.193.87
4410.7.193.88/2910.7.193.89 – 10.7.193.9410.7.193.95
4510.7.193.96/2910.7.193.97 – 10.7.193.10210.7.193.103
4610.7.193.104/2910.7.193.105 – 10.7.193.11010.7.193.111
4710.7.193.112/2910.7.193.113 – 10.7.193.11810.7.193.119
4810.7.193.120/2910.7.193.121 – 10.7.193.12610.7.193.127
4910.7.193.128/2910.7.193.129 – 10.7.193.13410.7.193.135
5010.7.193.136/2910.7.193.137 – 10.7.193.14210.7.193.143
5110.7.193.144/2910.7.193.145 – 10.7.193.15010.7.193.151
5210.7.193.152/2910.7.193.153 – 10.7.193.15810.7.193.159
5310.7.193.160/2910.7.193.161 – 10.7.193.16610.7.193.167
5410.7.193.168/2910.7.193.169 – 10.7.193.17410.7.193.175
5510.7.193.176/2910.7.193.177 – 10.7.193.18210.7.193.183
5610.7.193.184/2910.7.193.185 – 10.7.193.19010.7.193.191
5710.7.193.192/2910.7.193.193 – 10.7.193.19810.7.193.199
5810.7.193.200/2910.7.193.201 – 10.7.193.20610.7.193.207
5910.7.193.208/2910.7.193.209 – 10.7.193.21410.7.193.215
6010.7.193.216/2910.7.193.217 – 10.7.193.22210.7.193.223
6110.7.193.224/2910.7.193.225 – 10.7.193.23010.7.193.231
6210.7.193.232/2910.7.193.233 – 10.7.193.23810.7.193.239
6310.7.193.240/2910.7.193.241 – 10.7.193.24610.7.193.247
6410.7.193.248/2910.7.193.249 – 10.7.193.25410.7.193.255
6510.7.194.0/2910.7.194.1 – 10.7.194.610.7.194.7
6610.7.194.8/2910.7.194.9 – 10.7.194.1410.7.194.15
6710.7.194.16/2910.7.194.17 – 10.7.194.2210.7.194.23
6810.7.194.24/2910.7.194.25 – 10.7.194.3010.7.194.31
6910.7.194.32/2910.7.194.33 – 10.7.194.3810.7.194.39
7010.7.194.40/2910.7.194.41 – 10.7.194.4610.7.194.47
7110.7.194.48/2910.7.194.49 – 10.7.194.5410.7.194.55
7210.7.194.56/2910.7.194.57 – 10.7.194.6210.7.194.63
7310.7.194.64/2910.7.194.65 – 10.7.194.7010.7.194.71
7410.7.194.72/2910.7.194.73 – 10.7.194.7810.7.194.79
7510.7.194.80/2910.7.194.81 – 10.7.194.8610.7.194.87
7610.7.194.88/2910.7.194.89 – 10.7.194.9410.7.194.95
7710.7.194.96/2910.7.194.97 – 10.7.194.10210.7.194.103
7810.7.194.104/2910.7.194.105 – 10.7.194.11010.7.194.111
7910.7.194.112/2910.7.194.113 – 10.7.194.11810.7.194.119
8010.7.194.120/2910.7.194.121 – 10.7.194.12610.7.194.127
8110.7.194.128/2910.7.194.129 – 10.7.194.13410.7.194.135
8210.7.194.136/2910.7.194.137 – 10.7.194.14210.7.194.143
8310.7.194.144/2910.7.194.145 – 10.7.194.15010.7.194.151
8410.7.194.152/2910.7.194.153 – 10.7.194.15810.7.194.159
8510.7.194.160/2910.7.194.161 – 10.7.194.16610.7.194.167
8610.7.194.168/2910.7.194.169 – 10.7.194.17410.7.194.175
8710.7.194.176/2910.7.194.177 – 10.7.194.18210.7.194.183
8810.7.194.184/2910.7.194.185 – 10.7.194.19010.7.194.191
8910.7.194.192/2910.7.194.193 – 10.7.194.19810.7.194.199
9010.7.194.200/2910.7.194.201 – 10.7.194.20610.7.194.207
9110.7.194.208/2910.7.194.209 – 10.7.194.21410.7.194.215
9210.7.194.216/2910.7.194.217 – 10.7.194.22210.7.194.223
9310.7.194.224/2910.7.194.225 – 10.7.194.23010.7.194.231
9410.7.194.232/2910.7.194.233 – 10.7.194.23810.7.194.239
9510.7.194.240/2910.7.194.241 – 10.7.194.24610.7.194.247
9610.7.194.248/2910.7.194.249 – 10.7.194.25410.7.194.255
9710.7.195.0/2910.7.195.1 – 10.7.195.610.7.195.7
9810.7.195.8/2910.7.195.9 – 10.7.195.1410.7.195.15
9910.7.195.16/2910.7.195.17 – 10.7.195.2210.7.195.23
10010.7.195.24/2910.7.195.25 – 10.7.195.3010.7.195.31
10110.7.195.32/2910.7.195.33 – 10.7.195.3810.7.195.39
10210.7.195.40/2910.7.195.41 – 10.7.195.4610.7.195.47
10310.7.195.48/2910.7.195.49 – 10.7.195.5410.7.195.55
10410.7.195.56/2910.7.195.57 – 10.7.195.6210.7.195.63
10510.7.195.64/2910.7.195.65 – 10.7.195.7010.7.195.71
10610.7.195.72/2910.7.195.73 – 10.7.195.7810.7.195.79
10710.7.195.80/2910.7.195.81 – 10.7.195.8610.7.195.87
10810.7.195.88/2910.7.195.89 – 10.7.195.9410.7.195.95
10910.7.195.96/2910.7.195.97 – 10.7.195.10210.7.195.103
11010.7.195.104/2910.7.195.105 – 10.7.195.11010.7.195.111
11110.7.195.112/2910.7.195.113 – 10.7.195.11810.7.195.119
11210.7.195.120/2910.7.195.121 – 10.7.195.12610.7.195.127
11310.7.195.128/2910.7.195.129 – 10.7.195.13410.7.195.135
11410.7.195.136/2910.7.195.137 – 10.7.195.14210.7.195.143
11510.7.195.144/2910.7.195.145 – 10.7.195.15010.7.195.151
11610.7.195.152/2910.7.195.153 – 10.7.195.15810.7.195.159
11710.7.195.160/2910.7.195.161 – 10.7.195.16610.7.195.167
11810.7.195.168/2910.7.195.169 – 10.7.195.17410.7.195.175
11910.7.195.176/2910.7.195.177 – 10.7.195.18210.7.195.183
12010.7.195.184/2910.7.195.185 – 10.7.195.19010.7.195.191
12110.7.195.192/2910.7.195.193 – 10.7.195.19810.7.195.199
12210.7.195.200/2910.7.195.201 – 10.7.195.20610.7.195.207
12310.7.195.208/2910.7.195.209 – 10.7.195.21410.7.195.215
12410.7.195.216/2910.7.195.217 – 10.7.195.22210.7.195.223
12510.7.195.224/2910.7.195.225 – 10.7.195.23010.7.195.231
12610.7.195.232/2910.7.195.233 – 10.7.195.23810.7.195.239
12710.7.195.240/2910.7.195.241 – 10.7.195.24610.7.195.247
12810.7.195.248/2910.7.195.249 – 10.7.195.25410.7.195.255
12910.7.196.0/2910.7.196.1 – 10.7.196.610.7.196.7
13010.7.196.8/2910.7.196.9 – 10.7.196.1410.7.196.15
13110.7.196.16/2910.7.196.17 – 10.7.196.2210.7.196.23
13210.7.196.24/2910.7.196.25 – 10.7.196.3010.7.196.31
13310.7.196.32/2910.7.196.33 – 10.7.196.3810.7.196.39
13410.7.196.40/2910.7.196.41 – 10.7.196.4610.7.196.47
13510.7.196.48/2910.7.196.49 – 10.7.196.5410.7.196.55
13610.7.196.56/2910.7.196.57 – 10.7.196.6210.7.196.63
13710.7.196.64/2910.7.196.65 – 10.7.196.7010.7.196.71
13810.7.196.72/2910.7.196.73 – 10.7.196.7810.7.196.79
13910.7.196.80/2910.7.196.81 – 10.7.196.8610.7.196.87
14010.7.196.88/2910.7.196.89 – 10.7.196.9410.7.196.95
14110.7.196.96/2910.7.196.97 – 10.7.196.10210.7.196.103
14210.7.196.104/2910.7.196.105 – 10.7.196.11010.7.196.111
14310.7.196.112/2910.7.196.113 – 10.7.196.11810.7.196.119
14410.7.196.120/2910.7.196.121 – 10.7.196.12610.7.196.127
14510.7.196.128/2910.7.196.129 – 10.7.196.13410.7.196.135
14610.7.196.136/2910.7.196.137 – 10.7.196.14210.7.196.143
14710.7.196.144/2910.7.196.145 – 10.7.196.15010.7.196.151
14810.7.196.152/2910.7.196.153 – 10.7.196.15810.7.196.159
14910.7.196.160/2910.7.196.161 – 10.7.196.16610.7.196.167
15010.7.196.168/2910.7.196.169 – 10.7.196.17410.7.196.175
15110.7.196.176/2910.7.196.177 – 10.7.196.18210.7.196.183
15210.7.196.184/2910.7.196.185 – 10.7.196.19010.7.196.191
15310.7.196.192/2910.7.196.193 – 10.7.196.19810.7.196.199
15410.7.196.200/2910.7.196.201 – 10.7.196.20610.7.196.207
15510.7.196.208/2910.7.196.209 – 10.7.196.21410.7.196.215
15610.7.196.216/2910.7.196.217 – 10.7.196.22210.7.196.223
15710.7.196.224/2910.7.196.225 – 10.7.196.23010.7.196.231
15810.7.196.232/2910.7.196.233 – 10.7.196.23810.7.196.239
15910.7.196.240/2910.7.196.241 – 10.7.196.24610.7.196.247
16010.7.196.248/2910.7.196.249 – 10.7.196.25410.7.196.255
16110.7.197.0/2910.7.197.1 – 10.7.197.610.7.197.7
16210.7.197.8/2910.7.197.9 – 10.7.197.1410.7.197.15
16310.7.197.16/2910.7.197.17 – 10.7.197.2210.7.197.23
16410.7.197.24/2910.7.197.25 – 10.7.197.3010.7.197.31
16510.7.197.32/2910.7.197.33 – 10.7.197.3810.7.197.39
16610.7.197.40/2910.7.197.41 – 10.7.197.4610.7.197.47
16710.7.197.48/2910.7.197.49 – 10.7.197.5410.7.197.55
16810.7.197.56/2910.7.197.57 – 10.7.197.6210.7.197.63
16910.7.197.64/2910.7.197.65 – 10.7.197.7010.7.197.71
17010.7.197.72/2910.7.197.73 – 10.7.197.7810.7.197.79
17110.7.197.80/2910.7.197.81 – 10.7.197.8610.7.197.87
17210.7.197.88/2910.7.197.89 – 10.7.197.9410.7.197.95
17310.7.197.96/2910.7.197.97 – 10.7.197.10210.7.197.103
17410.7.197.104/2910.7.197.105 – 10.7.197.11010.7.197.111
17510.7.197.112/2910.7.197.113 – 10.7.197.11810.7.197.119
17610.7.197.120/2910.7.197.121 – 10.7.197.12610.7.197.127
17710.7.197.128/2910.7.197.129 – 10.7.197.13410.7.197.135
17810.7.197.136/2910.7.197.137 – 10.7.197.14210.7.197.143
17910.7.197.144/2910.7.197.145 – 10.7.197.15010.7.197.151
18010.7.197.152/2910.7.197.153 – 10.7.197.15810.7.197.159
18110.7.197.160/2910.7.197.161 – 10.7.197.16610.7.197.167
18210.7.197.168/2910.7.197.169 – 10.7.197.17410.7.197.175
18310.7.197.176/2910.7.197.177 – 10.7.197.18210.7.197.183
18410.7.197.184/2910.7.197.185 – 10.7.197.19010.7.197.191
18510.7.197.192/2910.7.197.193 – 10.7.197.19810.7.197.199
18610.7.197.200/2910.7.197.201 – 10.7.197.20610.7.197.207
18710.7.197.208/2910.7.197.209 – 10.7.197.21410.7.197.215
18810.7.197.216/2910.7.197.217 – 10.7.197.22210.7.197.223
18910.7.197.224/2910.7.197.225 – 10.7.197.23010.7.197.231
19010.7.197.232/2910.7.197.233 – 10.7.197.23810.7.197.239
19110.7.197.240/2910.7.197.241 – 10.7.197.24610.7.197.247
19210.7.197.248/2910.7.197.249 – 10.7.197.25410.7.197.255
19310.7.198.0/2910.7.198.1 – 10.7.198.610.7.198.7
19410.7.198.8/2910.7.198.9 – 10.7.198.1410.7.198.15
19510.7.198.16/2910.7.198.17 – 10.7.198.2210.7.198.23
19610.7.198.24/2910.7.198.25 – 10.7.198.3010.7.198.31
19710.7.198.32/2910.7.198.33 – 10.7.198.3810.7.198.39
19810.7.198.40/2910.7.198.41 – 10.7.198.4610.7.198.47
19910.7.198.48/2910.7.198.49 – 10.7.198.5410.7.198.55
20010.7.198.56/2910.7.198.57 – 10.7.198.6210.7.198.63
20110.7.198.64/2910.7.198.65 – 10.7.198.7010.7.198.71
20210.7.198.72/2910.7.198.73 – 10.7.198.7810.7.198.79
20310.7.198.80/2910.7.198.81 – 10.7.198.8610.7.198.87
20410.7.198.88/2910.7.198.89 – 10.7.198.9410.7.198.95
20510.7.198.96/2910.7.198.97 – 10.7.198.10210.7.198.103
20610.7.198.104/2910.7.198.105 – 10.7.198.11010.7.198.111
20710.7.198.112/2910.7.198.113 – 10.7.198.11810.7.198.119
20810.7.198.120/2910.7.198.121 – 10.7.198.12610.7.198.127
20910.7.198.128/2910.7.198.129 – 10.7.198.13410.7.198.135
21010.7.198.136/2910.7.198.137 – 10.7.198.14210.7.198.143
21110.7.198.144/2910.7.198.145 – 10.7.198.15010.7.198.151
21210.7.198.152/2910.7.198.153 – 10.7.198.15810.7.198.159
21310.7.198.160/2910.7.198.161 – 10.7.198.16610.7.198.167
21410.7.198.168/2910.7.198.169 – 10.7.198.17410.7.198.175
21510.7.198.176/2910.7.198.177 – 10.7.198.18210.7.198.183
21610.7.198.184/2910.7.198.185 – 10.7.198.19010.7.198.191
21710.7.198.192/2910.7.198.193 – 10.7.198.19810.7.198.199
21810.7.198.200/2910.7.198.201 – 10.7.198.20610.7.198.207
21910.7.198.208/2910.7.198.209 – 10.7.198.21410.7.198.215
22010.7.198.216/2910.7.198.217 – 10.7.198.22210.7.198.223
22110.7.198.224/2910.7.198.225 – 10.7.198.23010.7.198.231
22210.7.198.232/2910.7.198.233 – 10.7.198.23810.7.198.239
22310.7.198.240/2910.7.198.241 – 10.7.198.24610.7.198.247
22410.7.198.248/2910.7.198.249 – 10.7.198.25410.7.198.255
22510.7.199.0/2910.7.199.1 – 10.7.199.610.7.199.7
22610.7.199.8/2910.7.199.9 – 10.7.199.1410.7.199.15
22710.7.199.16/2910.7.199.17 – 10.7.199.2210.7.199.23
22810.7.199.24/2910.7.199.25 – 10.7.199.3010.7.199.31
22910.7.199.32/2910.7.199.33 – 10.7.199.3810.7.199.39
23010.7.199.40/2910.7.199.41 – 10.7.199.4610.7.199.47
23110.7.199.48/2910.7.199.49 – 10.7.199.5410.7.199.55
23210.7.199.56/2910.7.199.57 – 10.7.199.6210.7.199.63
23310.7.199.64/2910.7.199.65 – 10.7.199.7010.7.199.71
23410.7.199.72/2910.7.199.73 – 10.7.199.7810.7.199.79
23510.7.199.80/2910.7.199.81 – 10.7.199.8610.7.199.87
23610.7.199.88/2910.7.199.89 – 10.7.199.9410.7.199.95
23710.7.199.96/2910.7.199.97 – 10.7.199.10210.7.199.103
23810.7.199.104/2910.7.199.105 – 10.7.199.11010.7.199.111
23910.7.199.112/2910.7.199.113 – 10.7.199.11810.7.199.119
24010.7.199.120/2910.7.199.121 – 10.7.199.12610.7.199.127
24110.7.199.128/2910.7.199.129 – 10.7.199.13410.7.199.135
24210.7.199.136/2910.7.199.137 – 10.7.199.14210.7.199.143
24310.7.199.144/2910.7.199.145 – 10.7.199.15010.7.199.151
24410.7.199.152/2910.7.199.153 – 10.7.199.15810.7.199.159
24510.7.199.160/2910.7.199.161 – 10.7.199.16610.7.199.167
24610.7.199.168/2910.7.199.169 – 10.7.199.17410.7.199.175
24710.7.199.176/2910.7.199.177 – 10.7.199.18210.7.199.183
24810.7.199.184/2910.7.199.185 – 10.7.199.19010.7.199.191
24910.7.199.192/2910.7.199.193 – 10.7.199.19810.7.199.199
25010.7.199.200/2910.7.199.201 – 10.7.199.20610.7.199.207
25110.7.199.208/2910.7.199.209 – 10.7.199.21410.7.199.215
25210.7.199.216/2910.7.199.217 – 10.7.199.22210.7.199.223
25310.7.199.224/2910.7.199.225 – 10.7.199.23010.7.199.231
25410.7.199.232/2910.7.199.233 – 10.7.199.23810.7.199.239
25510.7.199.240/2910.7.199.241 – 10.7.199.24610.7.199.247
25610.7.199.248/2910.7.199.249 – 10.7.199.25410.7.199.255
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /21
/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-
/18255.255.192.016,38416,382-
/19255.255.224.08,1928,190-
/20255.255.240.04,0964,094-
/21255.255.248.02,0482,0461
/22255.255.252.01,0241,0222 split →
/23255.255.254.05125104 split →
/24255.255.255.02562548 split →
/25255.255.255.12812812616 split →
/26255.255.255.192646232 split →
/27255.255.255.224323064 split →
/28255.255.255.2401614128 split →
/29255.255.255.24886256 split →
/30255.255.255.25242512 split →
/31255.255.255.254221,024 split →
/32255.255.255.255112,048 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 →