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)10.7.232.0/21
network10.7.232.0/21
broadcast10.7.239.255
first host10.7.232.1
last host10.7.239.254
subnet mask255.255.248.0
wildcard0.0.7.255
addresses2,048
usable hosts2,046
classA
ipcalc 10.7.232.0/21
address00001010.00000111.11101000.00000000
subnet mask11111111.11111111.11111000.00000000
network00001010.00000111.11101000.00000000
broadcast00001010.00000111.11101111.11111111
green = network part, grey = host part
hex0x0a07e800
decimal168290304
reverse dns0.232.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:e800

/21 split into /29 · 256 subnets

close ×
#networkhost rangebroadcast
110.7.232.0/2910.7.232.1 – 10.7.232.610.7.232.7
210.7.232.8/2910.7.232.9 – 10.7.232.1410.7.232.15
310.7.232.16/2910.7.232.17 – 10.7.232.2210.7.232.23
410.7.232.24/2910.7.232.25 – 10.7.232.3010.7.232.31
510.7.232.32/2910.7.232.33 – 10.7.232.3810.7.232.39
610.7.232.40/2910.7.232.41 – 10.7.232.4610.7.232.47
710.7.232.48/2910.7.232.49 – 10.7.232.5410.7.232.55
810.7.232.56/2910.7.232.57 – 10.7.232.6210.7.232.63
910.7.232.64/2910.7.232.65 – 10.7.232.7010.7.232.71
1010.7.232.72/2910.7.232.73 – 10.7.232.7810.7.232.79
1110.7.232.80/2910.7.232.81 – 10.7.232.8610.7.232.87
1210.7.232.88/2910.7.232.89 – 10.7.232.9410.7.232.95
1310.7.232.96/2910.7.232.97 – 10.7.232.10210.7.232.103
1410.7.232.104/2910.7.232.105 – 10.7.232.11010.7.232.111
1510.7.232.112/2910.7.232.113 – 10.7.232.11810.7.232.119
1610.7.232.120/2910.7.232.121 – 10.7.232.12610.7.232.127
1710.7.232.128/2910.7.232.129 – 10.7.232.13410.7.232.135
1810.7.232.136/2910.7.232.137 – 10.7.232.14210.7.232.143
1910.7.232.144/2910.7.232.145 – 10.7.232.15010.7.232.151
2010.7.232.152/2910.7.232.153 – 10.7.232.15810.7.232.159
2110.7.232.160/2910.7.232.161 – 10.7.232.16610.7.232.167
2210.7.232.168/2910.7.232.169 – 10.7.232.17410.7.232.175
2310.7.232.176/2910.7.232.177 – 10.7.232.18210.7.232.183
2410.7.232.184/2910.7.232.185 – 10.7.232.19010.7.232.191
2510.7.232.192/2910.7.232.193 – 10.7.232.19810.7.232.199
2610.7.232.200/2910.7.232.201 – 10.7.232.20610.7.232.207
2710.7.232.208/2910.7.232.209 – 10.7.232.21410.7.232.215
2810.7.232.216/2910.7.232.217 – 10.7.232.22210.7.232.223
2910.7.232.224/2910.7.232.225 – 10.7.232.23010.7.232.231
3010.7.232.232/2910.7.232.233 – 10.7.232.23810.7.232.239
3110.7.232.240/2910.7.232.241 – 10.7.232.24610.7.232.247
3210.7.232.248/2910.7.232.249 – 10.7.232.25410.7.232.255
3310.7.233.0/2910.7.233.1 – 10.7.233.610.7.233.7
3410.7.233.8/2910.7.233.9 – 10.7.233.1410.7.233.15
3510.7.233.16/2910.7.233.17 – 10.7.233.2210.7.233.23
3610.7.233.24/2910.7.233.25 – 10.7.233.3010.7.233.31
3710.7.233.32/2910.7.233.33 – 10.7.233.3810.7.233.39
3810.7.233.40/2910.7.233.41 – 10.7.233.4610.7.233.47
3910.7.233.48/2910.7.233.49 – 10.7.233.5410.7.233.55
4010.7.233.56/2910.7.233.57 – 10.7.233.6210.7.233.63
4110.7.233.64/2910.7.233.65 – 10.7.233.7010.7.233.71
4210.7.233.72/2910.7.233.73 – 10.7.233.7810.7.233.79
4310.7.233.80/2910.7.233.81 – 10.7.233.8610.7.233.87
4410.7.233.88/2910.7.233.89 – 10.7.233.9410.7.233.95
4510.7.233.96/2910.7.233.97 – 10.7.233.10210.7.233.103
4610.7.233.104/2910.7.233.105 – 10.7.233.11010.7.233.111
4710.7.233.112/2910.7.233.113 – 10.7.233.11810.7.233.119
4810.7.233.120/2910.7.233.121 – 10.7.233.12610.7.233.127
4910.7.233.128/2910.7.233.129 – 10.7.233.13410.7.233.135
5010.7.233.136/2910.7.233.137 – 10.7.233.14210.7.233.143
5110.7.233.144/2910.7.233.145 – 10.7.233.15010.7.233.151
5210.7.233.152/2910.7.233.153 – 10.7.233.15810.7.233.159
5310.7.233.160/2910.7.233.161 – 10.7.233.16610.7.233.167
5410.7.233.168/2910.7.233.169 – 10.7.233.17410.7.233.175
5510.7.233.176/2910.7.233.177 – 10.7.233.18210.7.233.183
5610.7.233.184/2910.7.233.185 – 10.7.233.19010.7.233.191
5710.7.233.192/2910.7.233.193 – 10.7.233.19810.7.233.199
5810.7.233.200/2910.7.233.201 – 10.7.233.20610.7.233.207
5910.7.233.208/2910.7.233.209 – 10.7.233.21410.7.233.215
6010.7.233.216/2910.7.233.217 – 10.7.233.22210.7.233.223
6110.7.233.224/2910.7.233.225 – 10.7.233.23010.7.233.231
6210.7.233.232/2910.7.233.233 – 10.7.233.23810.7.233.239
6310.7.233.240/2910.7.233.241 – 10.7.233.24610.7.233.247
6410.7.233.248/2910.7.233.249 – 10.7.233.25410.7.233.255
6510.7.234.0/2910.7.234.1 – 10.7.234.610.7.234.7
6610.7.234.8/2910.7.234.9 – 10.7.234.1410.7.234.15
6710.7.234.16/2910.7.234.17 – 10.7.234.2210.7.234.23
6810.7.234.24/2910.7.234.25 – 10.7.234.3010.7.234.31
6910.7.234.32/2910.7.234.33 – 10.7.234.3810.7.234.39
7010.7.234.40/2910.7.234.41 – 10.7.234.4610.7.234.47
7110.7.234.48/2910.7.234.49 – 10.7.234.5410.7.234.55
7210.7.234.56/2910.7.234.57 – 10.7.234.6210.7.234.63
7310.7.234.64/2910.7.234.65 – 10.7.234.7010.7.234.71
7410.7.234.72/2910.7.234.73 – 10.7.234.7810.7.234.79
7510.7.234.80/2910.7.234.81 – 10.7.234.8610.7.234.87
7610.7.234.88/2910.7.234.89 – 10.7.234.9410.7.234.95
7710.7.234.96/2910.7.234.97 – 10.7.234.10210.7.234.103
7810.7.234.104/2910.7.234.105 – 10.7.234.11010.7.234.111
7910.7.234.112/2910.7.234.113 – 10.7.234.11810.7.234.119
8010.7.234.120/2910.7.234.121 – 10.7.234.12610.7.234.127
8110.7.234.128/2910.7.234.129 – 10.7.234.13410.7.234.135
8210.7.234.136/2910.7.234.137 – 10.7.234.14210.7.234.143
8310.7.234.144/2910.7.234.145 – 10.7.234.15010.7.234.151
8410.7.234.152/2910.7.234.153 – 10.7.234.15810.7.234.159
8510.7.234.160/2910.7.234.161 – 10.7.234.16610.7.234.167
8610.7.234.168/2910.7.234.169 – 10.7.234.17410.7.234.175
8710.7.234.176/2910.7.234.177 – 10.7.234.18210.7.234.183
8810.7.234.184/2910.7.234.185 – 10.7.234.19010.7.234.191
8910.7.234.192/2910.7.234.193 – 10.7.234.19810.7.234.199
9010.7.234.200/2910.7.234.201 – 10.7.234.20610.7.234.207
9110.7.234.208/2910.7.234.209 – 10.7.234.21410.7.234.215
9210.7.234.216/2910.7.234.217 – 10.7.234.22210.7.234.223
9310.7.234.224/2910.7.234.225 – 10.7.234.23010.7.234.231
9410.7.234.232/2910.7.234.233 – 10.7.234.23810.7.234.239
9510.7.234.240/2910.7.234.241 – 10.7.234.24610.7.234.247
9610.7.234.248/2910.7.234.249 – 10.7.234.25410.7.234.255
9710.7.235.0/2910.7.235.1 – 10.7.235.610.7.235.7
9810.7.235.8/2910.7.235.9 – 10.7.235.1410.7.235.15
9910.7.235.16/2910.7.235.17 – 10.7.235.2210.7.235.23
10010.7.235.24/2910.7.235.25 – 10.7.235.3010.7.235.31
10110.7.235.32/2910.7.235.33 – 10.7.235.3810.7.235.39
10210.7.235.40/2910.7.235.41 – 10.7.235.4610.7.235.47
10310.7.235.48/2910.7.235.49 – 10.7.235.5410.7.235.55
10410.7.235.56/2910.7.235.57 – 10.7.235.6210.7.235.63
10510.7.235.64/2910.7.235.65 – 10.7.235.7010.7.235.71
10610.7.235.72/2910.7.235.73 – 10.7.235.7810.7.235.79
10710.7.235.80/2910.7.235.81 – 10.7.235.8610.7.235.87
10810.7.235.88/2910.7.235.89 – 10.7.235.9410.7.235.95
10910.7.235.96/2910.7.235.97 – 10.7.235.10210.7.235.103
11010.7.235.104/2910.7.235.105 – 10.7.235.11010.7.235.111
11110.7.235.112/2910.7.235.113 – 10.7.235.11810.7.235.119
11210.7.235.120/2910.7.235.121 – 10.7.235.12610.7.235.127
11310.7.235.128/2910.7.235.129 – 10.7.235.13410.7.235.135
11410.7.235.136/2910.7.235.137 – 10.7.235.14210.7.235.143
11510.7.235.144/2910.7.235.145 – 10.7.235.15010.7.235.151
11610.7.235.152/2910.7.235.153 – 10.7.235.15810.7.235.159
11710.7.235.160/2910.7.235.161 – 10.7.235.16610.7.235.167
11810.7.235.168/2910.7.235.169 – 10.7.235.17410.7.235.175
11910.7.235.176/2910.7.235.177 – 10.7.235.18210.7.235.183
12010.7.235.184/2910.7.235.185 – 10.7.235.19010.7.235.191
12110.7.235.192/2910.7.235.193 – 10.7.235.19810.7.235.199
12210.7.235.200/2910.7.235.201 – 10.7.235.20610.7.235.207
12310.7.235.208/2910.7.235.209 – 10.7.235.21410.7.235.215
12410.7.235.216/2910.7.235.217 – 10.7.235.22210.7.235.223
12510.7.235.224/2910.7.235.225 – 10.7.235.23010.7.235.231
12610.7.235.232/2910.7.235.233 – 10.7.235.23810.7.235.239
12710.7.235.240/2910.7.235.241 – 10.7.235.24610.7.235.247
12810.7.235.248/2910.7.235.249 – 10.7.235.25410.7.235.255
12910.7.236.0/2910.7.236.1 – 10.7.236.610.7.236.7
13010.7.236.8/2910.7.236.9 – 10.7.236.1410.7.236.15
13110.7.236.16/2910.7.236.17 – 10.7.236.2210.7.236.23
13210.7.236.24/2910.7.236.25 – 10.7.236.3010.7.236.31
13310.7.236.32/2910.7.236.33 – 10.7.236.3810.7.236.39
13410.7.236.40/2910.7.236.41 – 10.7.236.4610.7.236.47
13510.7.236.48/2910.7.236.49 – 10.7.236.5410.7.236.55
13610.7.236.56/2910.7.236.57 – 10.7.236.6210.7.236.63
13710.7.236.64/2910.7.236.65 – 10.7.236.7010.7.236.71
13810.7.236.72/2910.7.236.73 – 10.7.236.7810.7.236.79
13910.7.236.80/2910.7.236.81 – 10.7.236.8610.7.236.87
14010.7.236.88/2910.7.236.89 – 10.7.236.9410.7.236.95
14110.7.236.96/2910.7.236.97 – 10.7.236.10210.7.236.103
14210.7.236.104/2910.7.236.105 – 10.7.236.11010.7.236.111
14310.7.236.112/2910.7.236.113 – 10.7.236.11810.7.236.119
14410.7.236.120/2910.7.236.121 – 10.7.236.12610.7.236.127
14510.7.236.128/2910.7.236.129 – 10.7.236.13410.7.236.135
14610.7.236.136/2910.7.236.137 – 10.7.236.14210.7.236.143
14710.7.236.144/2910.7.236.145 – 10.7.236.15010.7.236.151
14810.7.236.152/2910.7.236.153 – 10.7.236.15810.7.236.159
14910.7.236.160/2910.7.236.161 – 10.7.236.16610.7.236.167
15010.7.236.168/2910.7.236.169 – 10.7.236.17410.7.236.175
15110.7.236.176/2910.7.236.177 – 10.7.236.18210.7.236.183
15210.7.236.184/2910.7.236.185 – 10.7.236.19010.7.236.191
15310.7.236.192/2910.7.236.193 – 10.7.236.19810.7.236.199
15410.7.236.200/2910.7.236.201 – 10.7.236.20610.7.236.207
15510.7.236.208/2910.7.236.209 – 10.7.236.21410.7.236.215
15610.7.236.216/2910.7.236.217 – 10.7.236.22210.7.236.223
15710.7.236.224/2910.7.236.225 – 10.7.236.23010.7.236.231
15810.7.236.232/2910.7.236.233 – 10.7.236.23810.7.236.239
15910.7.236.240/2910.7.236.241 – 10.7.236.24610.7.236.247
16010.7.236.248/2910.7.236.249 – 10.7.236.25410.7.236.255
16110.7.237.0/2910.7.237.1 – 10.7.237.610.7.237.7
16210.7.237.8/2910.7.237.9 – 10.7.237.1410.7.237.15
16310.7.237.16/2910.7.237.17 – 10.7.237.2210.7.237.23
16410.7.237.24/2910.7.237.25 – 10.7.237.3010.7.237.31
16510.7.237.32/2910.7.237.33 – 10.7.237.3810.7.237.39
16610.7.237.40/2910.7.237.41 – 10.7.237.4610.7.237.47
16710.7.237.48/2910.7.237.49 – 10.7.237.5410.7.237.55
16810.7.237.56/2910.7.237.57 – 10.7.237.6210.7.237.63
16910.7.237.64/2910.7.237.65 – 10.7.237.7010.7.237.71
17010.7.237.72/2910.7.237.73 – 10.7.237.7810.7.237.79
17110.7.237.80/2910.7.237.81 – 10.7.237.8610.7.237.87
17210.7.237.88/2910.7.237.89 – 10.7.237.9410.7.237.95
17310.7.237.96/2910.7.237.97 – 10.7.237.10210.7.237.103
17410.7.237.104/2910.7.237.105 – 10.7.237.11010.7.237.111
17510.7.237.112/2910.7.237.113 – 10.7.237.11810.7.237.119
17610.7.237.120/2910.7.237.121 – 10.7.237.12610.7.237.127
17710.7.237.128/2910.7.237.129 – 10.7.237.13410.7.237.135
17810.7.237.136/2910.7.237.137 – 10.7.237.14210.7.237.143
17910.7.237.144/2910.7.237.145 – 10.7.237.15010.7.237.151
18010.7.237.152/2910.7.237.153 – 10.7.237.15810.7.237.159
18110.7.237.160/2910.7.237.161 – 10.7.237.16610.7.237.167
18210.7.237.168/2910.7.237.169 – 10.7.237.17410.7.237.175
18310.7.237.176/2910.7.237.177 – 10.7.237.18210.7.237.183
18410.7.237.184/2910.7.237.185 – 10.7.237.19010.7.237.191
18510.7.237.192/2910.7.237.193 – 10.7.237.19810.7.237.199
18610.7.237.200/2910.7.237.201 – 10.7.237.20610.7.237.207
18710.7.237.208/2910.7.237.209 – 10.7.237.21410.7.237.215
18810.7.237.216/2910.7.237.217 – 10.7.237.22210.7.237.223
18910.7.237.224/2910.7.237.225 – 10.7.237.23010.7.237.231
19010.7.237.232/2910.7.237.233 – 10.7.237.23810.7.237.239
19110.7.237.240/2910.7.237.241 – 10.7.237.24610.7.237.247
19210.7.237.248/2910.7.237.249 – 10.7.237.25410.7.237.255
19310.7.238.0/2910.7.238.1 – 10.7.238.610.7.238.7
19410.7.238.8/2910.7.238.9 – 10.7.238.1410.7.238.15
19510.7.238.16/2910.7.238.17 – 10.7.238.2210.7.238.23
19610.7.238.24/2910.7.238.25 – 10.7.238.3010.7.238.31
19710.7.238.32/2910.7.238.33 – 10.7.238.3810.7.238.39
19810.7.238.40/2910.7.238.41 – 10.7.238.4610.7.238.47
19910.7.238.48/2910.7.238.49 – 10.7.238.5410.7.238.55
20010.7.238.56/2910.7.238.57 – 10.7.238.6210.7.238.63
20110.7.238.64/2910.7.238.65 – 10.7.238.7010.7.238.71
20210.7.238.72/2910.7.238.73 – 10.7.238.7810.7.238.79
20310.7.238.80/2910.7.238.81 – 10.7.238.8610.7.238.87
20410.7.238.88/2910.7.238.89 – 10.7.238.9410.7.238.95
20510.7.238.96/2910.7.238.97 – 10.7.238.10210.7.238.103
20610.7.238.104/2910.7.238.105 – 10.7.238.11010.7.238.111
20710.7.238.112/2910.7.238.113 – 10.7.238.11810.7.238.119
20810.7.238.120/2910.7.238.121 – 10.7.238.12610.7.238.127
20910.7.238.128/2910.7.238.129 – 10.7.238.13410.7.238.135
21010.7.238.136/2910.7.238.137 – 10.7.238.14210.7.238.143
21110.7.238.144/2910.7.238.145 – 10.7.238.15010.7.238.151
21210.7.238.152/2910.7.238.153 – 10.7.238.15810.7.238.159
21310.7.238.160/2910.7.238.161 – 10.7.238.16610.7.238.167
21410.7.238.168/2910.7.238.169 – 10.7.238.17410.7.238.175
21510.7.238.176/2910.7.238.177 – 10.7.238.18210.7.238.183
21610.7.238.184/2910.7.238.185 – 10.7.238.19010.7.238.191
21710.7.238.192/2910.7.238.193 – 10.7.238.19810.7.238.199
21810.7.238.200/2910.7.238.201 – 10.7.238.20610.7.238.207
21910.7.238.208/2910.7.238.209 – 10.7.238.21410.7.238.215
22010.7.238.216/2910.7.238.217 – 10.7.238.22210.7.238.223
22110.7.238.224/2910.7.238.225 – 10.7.238.23010.7.238.231
22210.7.238.232/2910.7.238.233 – 10.7.238.23810.7.238.239
22310.7.238.240/2910.7.238.241 – 10.7.238.24610.7.238.247
22410.7.238.248/2910.7.238.249 – 10.7.238.25410.7.238.255
22510.7.239.0/2910.7.239.1 – 10.7.239.610.7.239.7
22610.7.239.8/2910.7.239.9 – 10.7.239.1410.7.239.15
22710.7.239.16/2910.7.239.17 – 10.7.239.2210.7.239.23
22810.7.239.24/2910.7.239.25 – 10.7.239.3010.7.239.31
22910.7.239.32/2910.7.239.33 – 10.7.239.3810.7.239.39
23010.7.239.40/2910.7.239.41 – 10.7.239.4610.7.239.47
23110.7.239.48/2910.7.239.49 – 10.7.239.5410.7.239.55
23210.7.239.56/2910.7.239.57 – 10.7.239.6210.7.239.63
23310.7.239.64/2910.7.239.65 – 10.7.239.7010.7.239.71
23410.7.239.72/2910.7.239.73 – 10.7.239.7810.7.239.79
23510.7.239.80/2910.7.239.81 – 10.7.239.8610.7.239.87
23610.7.239.88/2910.7.239.89 – 10.7.239.9410.7.239.95
23710.7.239.96/2910.7.239.97 – 10.7.239.10210.7.239.103
23810.7.239.104/2910.7.239.105 – 10.7.239.11010.7.239.111
23910.7.239.112/2910.7.239.113 – 10.7.239.11810.7.239.119
24010.7.239.120/2910.7.239.121 – 10.7.239.12610.7.239.127
24110.7.239.128/2910.7.239.129 – 10.7.239.13410.7.239.135
24210.7.239.136/2910.7.239.137 – 10.7.239.14210.7.239.143
24310.7.239.144/2910.7.239.145 – 10.7.239.15010.7.239.151
24410.7.239.152/2910.7.239.153 – 10.7.239.15810.7.239.159
24510.7.239.160/2910.7.239.161 – 10.7.239.16610.7.239.167
24610.7.239.168/2910.7.239.169 – 10.7.239.17410.7.239.175
24710.7.239.176/2910.7.239.177 – 10.7.239.18210.7.239.183
24810.7.239.184/2910.7.239.185 – 10.7.239.19010.7.239.191
24910.7.239.192/2910.7.239.193 – 10.7.239.19810.7.239.199
25010.7.239.200/2910.7.239.201 – 10.7.239.20610.7.239.207
25110.7.239.208/2910.7.239.209 – 10.7.239.21410.7.239.215
25210.7.239.216/2910.7.239.217 – 10.7.239.22210.7.239.223
25310.7.239.224/2910.7.239.225 – 10.7.239.23010.7.239.231
25410.7.239.232/2910.7.239.233 – 10.7.239.23810.7.239.239
25510.7.239.240/2910.7.239.241 – 10.7.239.24610.7.239.247
25610.7.239.248/2910.7.239.249 – 10.7.239.25410.7.239.255
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 →