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)10.7.168.0/21
network10.7.168.0/21
broadcast10.7.175.255
first host10.7.168.1
last host10.7.175.254
subnet mask255.255.248.0
wildcard0.0.7.255
addresses2,048
usable hosts2,046
classA
ipcalc 10.7.168.0/21
address00001010.00000111.10101000.00000000
subnet mask11111111.11111111.11111000.00000000
network00001010.00000111.10101000.00000000
broadcast00001010.00000111.10101111.11111111
green = network part, grey = host part
hex0x0a07a800
decimal168273920
reverse dns0.168.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:a800

/21 split into /29 · 256 subnets

close ×
#networkhost rangebroadcast
110.7.168.0/2910.7.168.1 – 10.7.168.610.7.168.7
210.7.168.8/2910.7.168.9 – 10.7.168.1410.7.168.15
310.7.168.16/2910.7.168.17 – 10.7.168.2210.7.168.23
410.7.168.24/2910.7.168.25 – 10.7.168.3010.7.168.31
510.7.168.32/2910.7.168.33 – 10.7.168.3810.7.168.39
610.7.168.40/2910.7.168.41 – 10.7.168.4610.7.168.47
710.7.168.48/2910.7.168.49 – 10.7.168.5410.7.168.55
810.7.168.56/2910.7.168.57 – 10.7.168.6210.7.168.63
910.7.168.64/2910.7.168.65 – 10.7.168.7010.7.168.71
1010.7.168.72/2910.7.168.73 – 10.7.168.7810.7.168.79
1110.7.168.80/2910.7.168.81 – 10.7.168.8610.7.168.87
1210.7.168.88/2910.7.168.89 – 10.7.168.9410.7.168.95
1310.7.168.96/2910.7.168.97 – 10.7.168.10210.7.168.103
1410.7.168.104/2910.7.168.105 – 10.7.168.11010.7.168.111
1510.7.168.112/2910.7.168.113 – 10.7.168.11810.7.168.119
1610.7.168.120/2910.7.168.121 – 10.7.168.12610.7.168.127
1710.7.168.128/2910.7.168.129 – 10.7.168.13410.7.168.135
1810.7.168.136/2910.7.168.137 – 10.7.168.14210.7.168.143
1910.7.168.144/2910.7.168.145 – 10.7.168.15010.7.168.151
2010.7.168.152/2910.7.168.153 – 10.7.168.15810.7.168.159
2110.7.168.160/2910.7.168.161 – 10.7.168.16610.7.168.167
2210.7.168.168/2910.7.168.169 – 10.7.168.17410.7.168.175
2310.7.168.176/2910.7.168.177 – 10.7.168.18210.7.168.183
2410.7.168.184/2910.7.168.185 – 10.7.168.19010.7.168.191
2510.7.168.192/2910.7.168.193 – 10.7.168.19810.7.168.199
2610.7.168.200/2910.7.168.201 – 10.7.168.20610.7.168.207
2710.7.168.208/2910.7.168.209 – 10.7.168.21410.7.168.215
2810.7.168.216/2910.7.168.217 – 10.7.168.22210.7.168.223
2910.7.168.224/2910.7.168.225 – 10.7.168.23010.7.168.231
3010.7.168.232/2910.7.168.233 – 10.7.168.23810.7.168.239
3110.7.168.240/2910.7.168.241 – 10.7.168.24610.7.168.247
3210.7.168.248/2910.7.168.249 – 10.7.168.25410.7.168.255
3310.7.169.0/2910.7.169.1 – 10.7.169.610.7.169.7
3410.7.169.8/2910.7.169.9 – 10.7.169.1410.7.169.15
3510.7.169.16/2910.7.169.17 – 10.7.169.2210.7.169.23
3610.7.169.24/2910.7.169.25 – 10.7.169.3010.7.169.31
3710.7.169.32/2910.7.169.33 – 10.7.169.3810.7.169.39
3810.7.169.40/2910.7.169.41 – 10.7.169.4610.7.169.47
3910.7.169.48/2910.7.169.49 – 10.7.169.5410.7.169.55
4010.7.169.56/2910.7.169.57 – 10.7.169.6210.7.169.63
4110.7.169.64/2910.7.169.65 – 10.7.169.7010.7.169.71
4210.7.169.72/2910.7.169.73 – 10.7.169.7810.7.169.79
4310.7.169.80/2910.7.169.81 – 10.7.169.8610.7.169.87
4410.7.169.88/2910.7.169.89 – 10.7.169.9410.7.169.95
4510.7.169.96/2910.7.169.97 – 10.7.169.10210.7.169.103
4610.7.169.104/2910.7.169.105 – 10.7.169.11010.7.169.111
4710.7.169.112/2910.7.169.113 – 10.7.169.11810.7.169.119
4810.7.169.120/2910.7.169.121 – 10.7.169.12610.7.169.127
4910.7.169.128/2910.7.169.129 – 10.7.169.13410.7.169.135
5010.7.169.136/2910.7.169.137 – 10.7.169.14210.7.169.143
5110.7.169.144/2910.7.169.145 – 10.7.169.15010.7.169.151
5210.7.169.152/2910.7.169.153 – 10.7.169.15810.7.169.159
5310.7.169.160/2910.7.169.161 – 10.7.169.16610.7.169.167
5410.7.169.168/2910.7.169.169 – 10.7.169.17410.7.169.175
5510.7.169.176/2910.7.169.177 – 10.7.169.18210.7.169.183
5610.7.169.184/2910.7.169.185 – 10.7.169.19010.7.169.191
5710.7.169.192/2910.7.169.193 – 10.7.169.19810.7.169.199
5810.7.169.200/2910.7.169.201 – 10.7.169.20610.7.169.207
5910.7.169.208/2910.7.169.209 – 10.7.169.21410.7.169.215
6010.7.169.216/2910.7.169.217 – 10.7.169.22210.7.169.223
6110.7.169.224/2910.7.169.225 – 10.7.169.23010.7.169.231
6210.7.169.232/2910.7.169.233 – 10.7.169.23810.7.169.239
6310.7.169.240/2910.7.169.241 – 10.7.169.24610.7.169.247
6410.7.169.248/2910.7.169.249 – 10.7.169.25410.7.169.255
6510.7.170.0/2910.7.170.1 – 10.7.170.610.7.170.7
6610.7.170.8/2910.7.170.9 – 10.7.170.1410.7.170.15
6710.7.170.16/2910.7.170.17 – 10.7.170.2210.7.170.23
6810.7.170.24/2910.7.170.25 – 10.7.170.3010.7.170.31
6910.7.170.32/2910.7.170.33 – 10.7.170.3810.7.170.39
7010.7.170.40/2910.7.170.41 – 10.7.170.4610.7.170.47
7110.7.170.48/2910.7.170.49 – 10.7.170.5410.7.170.55
7210.7.170.56/2910.7.170.57 – 10.7.170.6210.7.170.63
7310.7.170.64/2910.7.170.65 – 10.7.170.7010.7.170.71
7410.7.170.72/2910.7.170.73 – 10.7.170.7810.7.170.79
7510.7.170.80/2910.7.170.81 – 10.7.170.8610.7.170.87
7610.7.170.88/2910.7.170.89 – 10.7.170.9410.7.170.95
7710.7.170.96/2910.7.170.97 – 10.7.170.10210.7.170.103
7810.7.170.104/2910.7.170.105 – 10.7.170.11010.7.170.111
7910.7.170.112/2910.7.170.113 – 10.7.170.11810.7.170.119
8010.7.170.120/2910.7.170.121 – 10.7.170.12610.7.170.127
8110.7.170.128/2910.7.170.129 – 10.7.170.13410.7.170.135
8210.7.170.136/2910.7.170.137 – 10.7.170.14210.7.170.143
8310.7.170.144/2910.7.170.145 – 10.7.170.15010.7.170.151
8410.7.170.152/2910.7.170.153 – 10.7.170.15810.7.170.159
8510.7.170.160/2910.7.170.161 – 10.7.170.16610.7.170.167
8610.7.170.168/2910.7.170.169 – 10.7.170.17410.7.170.175
8710.7.170.176/2910.7.170.177 – 10.7.170.18210.7.170.183
8810.7.170.184/2910.7.170.185 – 10.7.170.19010.7.170.191
8910.7.170.192/2910.7.170.193 – 10.7.170.19810.7.170.199
9010.7.170.200/2910.7.170.201 – 10.7.170.20610.7.170.207
9110.7.170.208/2910.7.170.209 – 10.7.170.21410.7.170.215
9210.7.170.216/2910.7.170.217 – 10.7.170.22210.7.170.223
9310.7.170.224/2910.7.170.225 – 10.7.170.23010.7.170.231
9410.7.170.232/2910.7.170.233 – 10.7.170.23810.7.170.239
9510.7.170.240/2910.7.170.241 – 10.7.170.24610.7.170.247
9610.7.170.248/2910.7.170.249 – 10.7.170.25410.7.170.255
9710.7.171.0/2910.7.171.1 – 10.7.171.610.7.171.7
9810.7.171.8/2910.7.171.9 – 10.7.171.1410.7.171.15
9910.7.171.16/2910.7.171.17 – 10.7.171.2210.7.171.23
10010.7.171.24/2910.7.171.25 – 10.7.171.3010.7.171.31
10110.7.171.32/2910.7.171.33 – 10.7.171.3810.7.171.39
10210.7.171.40/2910.7.171.41 – 10.7.171.4610.7.171.47
10310.7.171.48/2910.7.171.49 – 10.7.171.5410.7.171.55
10410.7.171.56/2910.7.171.57 – 10.7.171.6210.7.171.63
10510.7.171.64/2910.7.171.65 – 10.7.171.7010.7.171.71
10610.7.171.72/2910.7.171.73 – 10.7.171.7810.7.171.79
10710.7.171.80/2910.7.171.81 – 10.7.171.8610.7.171.87
10810.7.171.88/2910.7.171.89 – 10.7.171.9410.7.171.95
10910.7.171.96/2910.7.171.97 – 10.7.171.10210.7.171.103
11010.7.171.104/2910.7.171.105 – 10.7.171.11010.7.171.111
11110.7.171.112/2910.7.171.113 – 10.7.171.11810.7.171.119
11210.7.171.120/2910.7.171.121 – 10.7.171.12610.7.171.127
11310.7.171.128/2910.7.171.129 – 10.7.171.13410.7.171.135
11410.7.171.136/2910.7.171.137 – 10.7.171.14210.7.171.143
11510.7.171.144/2910.7.171.145 – 10.7.171.15010.7.171.151
11610.7.171.152/2910.7.171.153 – 10.7.171.15810.7.171.159
11710.7.171.160/2910.7.171.161 – 10.7.171.16610.7.171.167
11810.7.171.168/2910.7.171.169 – 10.7.171.17410.7.171.175
11910.7.171.176/2910.7.171.177 – 10.7.171.18210.7.171.183
12010.7.171.184/2910.7.171.185 – 10.7.171.19010.7.171.191
12110.7.171.192/2910.7.171.193 – 10.7.171.19810.7.171.199
12210.7.171.200/2910.7.171.201 – 10.7.171.20610.7.171.207
12310.7.171.208/2910.7.171.209 – 10.7.171.21410.7.171.215
12410.7.171.216/2910.7.171.217 – 10.7.171.22210.7.171.223
12510.7.171.224/2910.7.171.225 – 10.7.171.23010.7.171.231
12610.7.171.232/2910.7.171.233 – 10.7.171.23810.7.171.239
12710.7.171.240/2910.7.171.241 – 10.7.171.24610.7.171.247
12810.7.171.248/2910.7.171.249 – 10.7.171.25410.7.171.255
12910.7.172.0/2910.7.172.1 – 10.7.172.610.7.172.7
13010.7.172.8/2910.7.172.9 – 10.7.172.1410.7.172.15
13110.7.172.16/2910.7.172.17 – 10.7.172.2210.7.172.23
13210.7.172.24/2910.7.172.25 – 10.7.172.3010.7.172.31
13310.7.172.32/2910.7.172.33 – 10.7.172.3810.7.172.39
13410.7.172.40/2910.7.172.41 – 10.7.172.4610.7.172.47
13510.7.172.48/2910.7.172.49 – 10.7.172.5410.7.172.55
13610.7.172.56/2910.7.172.57 – 10.7.172.6210.7.172.63
13710.7.172.64/2910.7.172.65 – 10.7.172.7010.7.172.71
13810.7.172.72/2910.7.172.73 – 10.7.172.7810.7.172.79
13910.7.172.80/2910.7.172.81 – 10.7.172.8610.7.172.87
14010.7.172.88/2910.7.172.89 – 10.7.172.9410.7.172.95
14110.7.172.96/2910.7.172.97 – 10.7.172.10210.7.172.103
14210.7.172.104/2910.7.172.105 – 10.7.172.11010.7.172.111
14310.7.172.112/2910.7.172.113 – 10.7.172.11810.7.172.119
14410.7.172.120/2910.7.172.121 – 10.7.172.12610.7.172.127
14510.7.172.128/2910.7.172.129 – 10.7.172.13410.7.172.135
14610.7.172.136/2910.7.172.137 – 10.7.172.14210.7.172.143
14710.7.172.144/2910.7.172.145 – 10.7.172.15010.7.172.151
14810.7.172.152/2910.7.172.153 – 10.7.172.15810.7.172.159
14910.7.172.160/2910.7.172.161 – 10.7.172.16610.7.172.167
15010.7.172.168/2910.7.172.169 – 10.7.172.17410.7.172.175
15110.7.172.176/2910.7.172.177 – 10.7.172.18210.7.172.183
15210.7.172.184/2910.7.172.185 – 10.7.172.19010.7.172.191
15310.7.172.192/2910.7.172.193 – 10.7.172.19810.7.172.199
15410.7.172.200/2910.7.172.201 – 10.7.172.20610.7.172.207
15510.7.172.208/2910.7.172.209 – 10.7.172.21410.7.172.215
15610.7.172.216/2910.7.172.217 – 10.7.172.22210.7.172.223
15710.7.172.224/2910.7.172.225 – 10.7.172.23010.7.172.231
15810.7.172.232/2910.7.172.233 – 10.7.172.23810.7.172.239
15910.7.172.240/2910.7.172.241 – 10.7.172.24610.7.172.247
16010.7.172.248/2910.7.172.249 – 10.7.172.25410.7.172.255
16110.7.173.0/2910.7.173.1 – 10.7.173.610.7.173.7
16210.7.173.8/2910.7.173.9 – 10.7.173.1410.7.173.15
16310.7.173.16/2910.7.173.17 – 10.7.173.2210.7.173.23
16410.7.173.24/2910.7.173.25 – 10.7.173.3010.7.173.31
16510.7.173.32/2910.7.173.33 – 10.7.173.3810.7.173.39
16610.7.173.40/2910.7.173.41 – 10.7.173.4610.7.173.47
16710.7.173.48/2910.7.173.49 – 10.7.173.5410.7.173.55
16810.7.173.56/2910.7.173.57 – 10.7.173.6210.7.173.63
16910.7.173.64/2910.7.173.65 – 10.7.173.7010.7.173.71
17010.7.173.72/2910.7.173.73 – 10.7.173.7810.7.173.79
17110.7.173.80/2910.7.173.81 – 10.7.173.8610.7.173.87
17210.7.173.88/2910.7.173.89 – 10.7.173.9410.7.173.95
17310.7.173.96/2910.7.173.97 – 10.7.173.10210.7.173.103
17410.7.173.104/2910.7.173.105 – 10.7.173.11010.7.173.111
17510.7.173.112/2910.7.173.113 – 10.7.173.11810.7.173.119
17610.7.173.120/2910.7.173.121 – 10.7.173.12610.7.173.127
17710.7.173.128/2910.7.173.129 – 10.7.173.13410.7.173.135
17810.7.173.136/2910.7.173.137 – 10.7.173.14210.7.173.143
17910.7.173.144/2910.7.173.145 – 10.7.173.15010.7.173.151
18010.7.173.152/2910.7.173.153 – 10.7.173.15810.7.173.159
18110.7.173.160/2910.7.173.161 – 10.7.173.16610.7.173.167
18210.7.173.168/2910.7.173.169 – 10.7.173.17410.7.173.175
18310.7.173.176/2910.7.173.177 – 10.7.173.18210.7.173.183
18410.7.173.184/2910.7.173.185 – 10.7.173.19010.7.173.191
18510.7.173.192/2910.7.173.193 – 10.7.173.19810.7.173.199
18610.7.173.200/2910.7.173.201 – 10.7.173.20610.7.173.207
18710.7.173.208/2910.7.173.209 – 10.7.173.21410.7.173.215
18810.7.173.216/2910.7.173.217 – 10.7.173.22210.7.173.223
18910.7.173.224/2910.7.173.225 – 10.7.173.23010.7.173.231
19010.7.173.232/2910.7.173.233 – 10.7.173.23810.7.173.239
19110.7.173.240/2910.7.173.241 – 10.7.173.24610.7.173.247
19210.7.173.248/2910.7.173.249 – 10.7.173.25410.7.173.255
19310.7.174.0/2910.7.174.1 – 10.7.174.610.7.174.7
19410.7.174.8/2910.7.174.9 – 10.7.174.1410.7.174.15
19510.7.174.16/2910.7.174.17 – 10.7.174.2210.7.174.23
19610.7.174.24/2910.7.174.25 – 10.7.174.3010.7.174.31
19710.7.174.32/2910.7.174.33 – 10.7.174.3810.7.174.39
19810.7.174.40/2910.7.174.41 – 10.7.174.4610.7.174.47
19910.7.174.48/2910.7.174.49 – 10.7.174.5410.7.174.55
20010.7.174.56/2910.7.174.57 – 10.7.174.6210.7.174.63
20110.7.174.64/2910.7.174.65 – 10.7.174.7010.7.174.71
20210.7.174.72/2910.7.174.73 – 10.7.174.7810.7.174.79
20310.7.174.80/2910.7.174.81 – 10.7.174.8610.7.174.87
20410.7.174.88/2910.7.174.89 – 10.7.174.9410.7.174.95
20510.7.174.96/2910.7.174.97 – 10.7.174.10210.7.174.103
20610.7.174.104/2910.7.174.105 – 10.7.174.11010.7.174.111
20710.7.174.112/2910.7.174.113 – 10.7.174.11810.7.174.119
20810.7.174.120/2910.7.174.121 – 10.7.174.12610.7.174.127
20910.7.174.128/2910.7.174.129 – 10.7.174.13410.7.174.135
21010.7.174.136/2910.7.174.137 – 10.7.174.14210.7.174.143
21110.7.174.144/2910.7.174.145 – 10.7.174.15010.7.174.151
21210.7.174.152/2910.7.174.153 – 10.7.174.15810.7.174.159
21310.7.174.160/2910.7.174.161 – 10.7.174.16610.7.174.167
21410.7.174.168/2910.7.174.169 – 10.7.174.17410.7.174.175
21510.7.174.176/2910.7.174.177 – 10.7.174.18210.7.174.183
21610.7.174.184/2910.7.174.185 – 10.7.174.19010.7.174.191
21710.7.174.192/2910.7.174.193 – 10.7.174.19810.7.174.199
21810.7.174.200/2910.7.174.201 – 10.7.174.20610.7.174.207
21910.7.174.208/2910.7.174.209 – 10.7.174.21410.7.174.215
22010.7.174.216/2910.7.174.217 – 10.7.174.22210.7.174.223
22110.7.174.224/2910.7.174.225 – 10.7.174.23010.7.174.231
22210.7.174.232/2910.7.174.233 – 10.7.174.23810.7.174.239
22310.7.174.240/2910.7.174.241 – 10.7.174.24610.7.174.247
22410.7.174.248/2910.7.174.249 – 10.7.174.25410.7.174.255
22510.7.175.0/2910.7.175.1 – 10.7.175.610.7.175.7
22610.7.175.8/2910.7.175.9 – 10.7.175.1410.7.175.15
22710.7.175.16/2910.7.175.17 – 10.7.175.2210.7.175.23
22810.7.175.24/2910.7.175.25 – 10.7.175.3010.7.175.31
22910.7.175.32/2910.7.175.33 – 10.7.175.3810.7.175.39
23010.7.175.40/2910.7.175.41 – 10.7.175.4610.7.175.47
23110.7.175.48/2910.7.175.49 – 10.7.175.5410.7.175.55
23210.7.175.56/2910.7.175.57 – 10.7.175.6210.7.175.63
23310.7.175.64/2910.7.175.65 – 10.7.175.7010.7.175.71
23410.7.175.72/2910.7.175.73 – 10.7.175.7810.7.175.79
23510.7.175.80/2910.7.175.81 – 10.7.175.8610.7.175.87
23610.7.175.88/2910.7.175.89 – 10.7.175.9410.7.175.95
23710.7.175.96/2910.7.175.97 – 10.7.175.10210.7.175.103
23810.7.175.104/2910.7.175.105 – 10.7.175.11010.7.175.111
23910.7.175.112/2910.7.175.113 – 10.7.175.11810.7.175.119
24010.7.175.120/2910.7.175.121 – 10.7.175.12610.7.175.127
24110.7.175.128/2910.7.175.129 – 10.7.175.13410.7.175.135
24210.7.175.136/2910.7.175.137 – 10.7.175.14210.7.175.143
24310.7.175.144/2910.7.175.145 – 10.7.175.15010.7.175.151
24410.7.175.152/2910.7.175.153 – 10.7.175.15810.7.175.159
24510.7.175.160/2910.7.175.161 – 10.7.175.16610.7.175.167
24610.7.175.168/2910.7.175.169 – 10.7.175.17410.7.175.175
24710.7.175.176/2910.7.175.177 – 10.7.175.18210.7.175.183
24810.7.175.184/2910.7.175.185 – 10.7.175.19010.7.175.191
24910.7.175.192/2910.7.175.193 – 10.7.175.19810.7.175.199
25010.7.175.200/2910.7.175.201 – 10.7.175.20610.7.175.207
25110.7.175.208/2910.7.175.209 – 10.7.175.21410.7.175.215
25210.7.175.216/2910.7.175.217 – 10.7.175.22210.7.175.223
25310.7.175.224/2910.7.175.225 – 10.7.175.23010.7.175.231
25410.7.175.232/2910.7.175.233 – 10.7.175.23810.7.175.239
25510.7.175.240/2910.7.175.241 – 10.7.175.24610.7.175.247
25610.7.175.248/2910.7.175.249 – 10.7.175.25410.7.175.255
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 →