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)10.7.48.0/21
network10.7.48.0/21
broadcast10.7.55.255
first host10.7.48.1
last host10.7.55.254
subnet mask255.255.248.0
wildcard0.0.7.255
addresses2,048
usable hosts2,046
classA
ipcalc 10.7.48.0/21
address00001010.00000111.00110000.00000000
subnet mask11111111.11111111.11111000.00000000
network00001010.00000111.00110000.00000000
broadcast00001010.00000111.00110111.11111111
green = network part, grey = host part
hex0x0a073000
decimal168243200
reverse dns0.48.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:3000

/21 split into /29 · 256 subnets

close ×
#networkhost rangebroadcast
110.7.48.0/2910.7.48.1 – 10.7.48.610.7.48.7
210.7.48.8/2910.7.48.9 – 10.7.48.1410.7.48.15
310.7.48.16/2910.7.48.17 – 10.7.48.2210.7.48.23
410.7.48.24/2910.7.48.25 – 10.7.48.3010.7.48.31
510.7.48.32/2910.7.48.33 – 10.7.48.3810.7.48.39
610.7.48.40/2910.7.48.41 – 10.7.48.4610.7.48.47
710.7.48.48/2910.7.48.49 – 10.7.48.5410.7.48.55
810.7.48.56/2910.7.48.57 – 10.7.48.6210.7.48.63
910.7.48.64/2910.7.48.65 – 10.7.48.7010.7.48.71
1010.7.48.72/2910.7.48.73 – 10.7.48.7810.7.48.79
1110.7.48.80/2910.7.48.81 – 10.7.48.8610.7.48.87
1210.7.48.88/2910.7.48.89 – 10.7.48.9410.7.48.95
1310.7.48.96/2910.7.48.97 – 10.7.48.10210.7.48.103
1410.7.48.104/2910.7.48.105 – 10.7.48.11010.7.48.111
1510.7.48.112/2910.7.48.113 – 10.7.48.11810.7.48.119
1610.7.48.120/2910.7.48.121 – 10.7.48.12610.7.48.127
1710.7.48.128/2910.7.48.129 – 10.7.48.13410.7.48.135
1810.7.48.136/2910.7.48.137 – 10.7.48.14210.7.48.143
1910.7.48.144/2910.7.48.145 – 10.7.48.15010.7.48.151
2010.7.48.152/2910.7.48.153 – 10.7.48.15810.7.48.159
2110.7.48.160/2910.7.48.161 – 10.7.48.16610.7.48.167
2210.7.48.168/2910.7.48.169 – 10.7.48.17410.7.48.175
2310.7.48.176/2910.7.48.177 – 10.7.48.18210.7.48.183
2410.7.48.184/2910.7.48.185 – 10.7.48.19010.7.48.191
2510.7.48.192/2910.7.48.193 – 10.7.48.19810.7.48.199
2610.7.48.200/2910.7.48.201 – 10.7.48.20610.7.48.207
2710.7.48.208/2910.7.48.209 – 10.7.48.21410.7.48.215
2810.7.48.216/2910.7.48.217 – 10.7.48.22210.7.48.223
2910.7.48.224/2910.7.48.225 – 10.7.48.23010.7.48.231
3010.7.48.232/2910.7.48.233 – 10.7.48.23810.7.48.239
3110.7.48.240/2910.7.48.241 – 10.7.48.24610.7.48.247
3210.7.48.248/2910.7.48.249 – 10.7.48.25410.7.48.255
3310.7.49.0/2910.7.49.1 – 10.7.49.610.7.49.7
3410.7.49.8/2910.7.49.9 – 10.7.49.1410.7.49.15
3510.7.49.16/2910.7.49.17 – 10.7.49.2210.7.49.23
3610.7.49.24/2910.7.49.25 – 10.7.49.3010.7.49.31
3710.7.49.32/2910.7.49.33 – 10.7.49.3810.7.49.39
3810.7.49.40/2910.7.49.41 – 10.7.49.4610.7.49.47
3910.7.49.48/2910.7.49.49 – 10.7.49.5410.7.49.55
4010.7.49.56/2910.7.49.57 – 10.7.49.6210.7.49.63
4110.7.49.64/2910.7.49.65 – 10.7.49.7010.7.49.71
4210.7.49.72/2910.7.49.73 – 10.7.49.7810.7.49.79
4310.7.49.80/2910.7.49.81 – 10.7.49.8610.7.49.87
4410.7.49.88/2910.7.49.89 – 10.7.49.9410.7.49.95
4510.7.49.96/2910.7.49.97 – 10.7.49.10210.7.49.103
4610.7.49.104/2910.7.49.105 – 10.7.49.11010.7.49.111
4710.7.49.112/2910.7.49.113 – 10.7.49.11810.7.49.119
4810.7.49.120/2910.7.49.121 – 10.7.49.12610.7.49.127
4910.7.49.128/2910.7.49.129 – 10.7.49.13410.7.49.135
5010.7.49.136/2910.7.49.137 – 10.7.49.14210.7.49.143
5110.7.49.144/2910.7.49.145 – 10.7.49.15010.7.49.151
5210.7.49.152/2910.7.49.153 – 10.7.49.15810.7.49.159
5310.7.49.160/2910.7.49.161 – 10.7.49.16610.7.49.167
5410.7.49.168/2910.7.49.169 – 10.7.49.17410.7.49.175
5510.7.49.176/2910.7.49.177 – 10.7.49.18210.7.49.183
5610.7.49.184/2910.7.49.185 – 10.7.49.19010.7.49.191
5710.7.49.192/2910.7.49.193 – 10.7.49.19810.7.49.199
5810.7.49.200/2910.7.49.201 – 10.7.49.20610.7.49.207
5910.7.49.208/2910.7.49.209 – 10.7.49.21410.7.49.215
6010.7.49.216/2910.7.49.217 – 10.7.49.22210.7.49.223
6110.7.49.224/2910.7.49.225 – 10.7.49.23010.7.49.231
6210.7.49.232/2910.7.49.233 – 10.7.49.23810.7.49.239
6310.7.49.240/2910.7.49.241 – 10.7.49.24610.7.49.247
6410.7.49.248/2910.7.49.249 – 10.7.49.25410.7.49.255
6510.7.50.0/2910.7.50.1 – 10.7.50.610.7.50.7
6610.7.50.8/2910.7.50.9 – 10.7.50.1410.7.50.15
6710.7.50.16/2910.7.50.17 – 10.7.50.2210.7.50.23
6810.7.50.24/2910.7.50.25 – 10.7.50.3010.7.50.31
6910.7.50.32/2910.7.50.33 – 10.7.50.3810.7.50.39
7010.7.50.40/2910.7.50.41 – 10.7.50.4610.7.50.47
7110.7.50.48/2910.7.50.49 – 10.7.50.5410.7.50.55
7210.7.50.56/2910.7.50.57 – 10.7.50.6210.7.50.63
7310.7.50.64/2910.7.50.65 – 10.7.50.7010.7.50.71
7410.7.50.72/2910.7.50.73 – 10.7.50.7810.7.50.79
7510.7.50.80/2910.7.50.81 – 10.7.50.8610.7.50.87
7610.7.50.88/2910.7.50.89 – 10.7.50.9410.7.50.95
7710.7.50.96/2910.7.50.97 – 10.7.50.10210.7.50.103
7810.7.50.104/2910.7.50.105 – 10.7.50.11010.7.50.111
7910.7.50.112/2910.7.50.113 – 10.7.50.11810.7.50.119
8010.7.50.120/2910.7.50.121 – 10.7.50.12610.7.50.127
8110.7.50.128/2910.7.50.129 – 10.7.50.13410.7.50.135
8210.7.50.136/2910.7.50.137 – 10.7.50.14210.7.50.143
8310.7.50.144/2910.7.50.145 – 10.7.50.15010.7.50.151
8410.7.50.152/2910.7.50.153 – 10.7.50.15810.7.50.159
8510.7.50.160/2910.7.50.161 – 10.7.50.16610.7.50.167
8610.7.50.168/2910.7.50.169 – 10.7.50.17410.7.50.175
8710.7.50.176/2910.7.50.177 – 10.7.50.18210.7.50.183
8810.7.50.184/2910.7.50.185 – 10.7.50.19010.7.50.191
8910.7.50.192/2910.7.50.193 – 10.7.50.19810.7.50.199
9010.7.50.200/2910.7.50.201 – 10.7.50.20610.7.50.207
9110.7.50.208/2910.7.50.209 – 10.7.50.21410.7.50.215
9210.7.50.216/2910.7.50.217 – 10.7.50.22210.7.50.223
9310.7.50.224/2910.7.50.225 – 10.7.50.23010.7.50.231
9410.7.50.232/2910.7.50.233 – 10.7.50.23810.7.50.239
9510.7.50.240/2910.7.50.241 – 10.7.50.24610.7.50.247
9610.7.50.248/2910.7.50.249 – 10.7.50.25410.7.50.255
9710.7.51.0/2910.7.51.1 – 10.7.51.610.7.51.7
9810.7.51.8/2910.7.51.9 – 10.7.51.1410.7.51.15
9910.7.51.16/2910.7.51.17 – 10.7.51.2210.7.51.23
10010.7.51.24/2910.7.51.25 – 10.7.51.3010.7.51.31
10110.7.51.32/2910.7.51.33 – 10.7.51.3810.7.51.39
10210.7.51.40/2910.7.51.41 – 10.7.51.4610.7.51.47
10310.7.51.48/2910.7.51.49 – 10.7.51.5410.7.51.55
10410.7.51.56/2910.7.51.57 – 10.7.51.6210.7.51.63
10510.7.51.64/2910.7.51.65 – 10.7.51.7010.7.51.71
10610.7.51.72/2910.7.51.73 – 10.7.51.7810.7.51.79
10710.7.51.80/2910.7.51.81 – 10.7.51.8610.7.51.87
10810.7.51.88/2910.7.51.89 – 10.7.51.9410.7.51.95
10910.7.51.96/2910.7.51.97 – 10.7.51.10210.7.51.103
11010.7.51.104/2910.7.51.105 – 10.7.51.11010.7.51.111
11110.7.51.112/2910.7.51.113 – 10.7.51.11810.7.51.119
11210.7.51.120/2910.7.51.121 – 10.7.51.12610.7.51.127
11310.7.51.128/2910.7.51.129 – 10.7.51.13410.7.51.135
11410.7.51.136/2910.7.51.137 – 10.7.51.14210.7.51.143
11510.7.51.144/2910.7.51.145 – 10.7.51.15010.7.51.151
11610.7.51.152/2910.7.51.153 – 10.7.51.15810.7.51.159
11710.7.51.160/2910.7.51.161 – 10.7.51.16610.7.51.167
11810.7.51.168/2910.7.51.169 – 10.7.51.17410.7.51.175
11910.7.51.176/2910.7.51.177 – 10.7.51.18210.7.51.183
12010.7.51.184/2910.7.51.185 – 10.7.51.19010.7.51.191
12110.7.51.192/2910.7.51.193 – 10.7.51.19810.7.51.199
12210.7.51.200/2910.7.51.201 – 10.7.51.20610.7.51.207
12310.7.51.208/2910.7.51.209 – 10.7.51.21410.7.51.215
12410.7.51.216/2910.7.51.217 – 10.7.51.22210.7.51.223
12510.7.51.224/2910.7.51.225 – 10.7.51.23010.7.51.231
12610.7.51.232/2910.7.51.233 – 10.7.51.23810.7.51.239
12710.7.51.240/2910.7.51.241 – 10.7.51.24610.7.51.247
12810.7.51.248/2910.7.51.249 – 10.7.51.25410.7.51.255
12910.7.52.0/2910.7.52.1 – 10.7.52.610.7.52.7
13010.7.52.8/2910.7.52.9 – 10.7.52.1410.7.52.15
13110.7.52.16/2910.7.52.17 – 10.7.52.2210.7.52.23
13210.7.52.24/2910.7.52.25 – 10.7.52.3010.7.52.31
13310.7.52.32/2910.7.52.33 – 10.7.52.3810.7.52.39
13410.7.52.40/2910.7.52.41 – 10.7.52.4610.7.52.47
13510.7.52.48/2910.7.52.49 – 10.7.52.5410.7.52.55
13610.7.52.56/2910.7.52.57 – 10.7.52.6210.7.52.63
13710.7.52.64/2910.7.52.65 – 10.7.52.7010.7.52.71
13810.7.52.72/2910.7.52.73 – 10.7.52.7810.7.52.79
13910.7.52.80/2910.7.52.81 – 10.7.52.8610.7.52.87
14010.7.52.88/2910.7.52.89 – 10.7.52.9410.7.52.95
14110.7.52.96/2910.7.52.97 – 10.7.52.10210.7.52.103
14210.7.52.104/2910.7.52.105 – 10.7.52.11010.7.52.111
14310.7.52.112/2910.7.52.113 – 10.7.52.11810.7.52.119
14410.7.52.120/2910.7.52.121 – 10.7.52.12610.7.52.127
14510.7.52.128/2910.7.52.129 – 10.7.52.13410.7.52.135
14610.7.52.136/2910.7.52.137 – 10.7.52.14210.7.52.143
14710.7.52.144/2910.7.52.145 – 10.7.52.15010.7.52.151
14810.7.52.152/2910.7.52.153 – 10.7.52.15810.7.52.159
14910.7.52.160/2910.7.52.161 – 10.7.52.16610.7.52.167
15010.7.52.168/2910.7.52.169 – 10.7.52.17410.7.52.175
15110.7.52.176/2910.7.52.177 – 10.7.52.18210.7.52.183
15210.7.52.184/2910.7.52.185 – 10.7.52.19010.7.52.191
15310.7.52.192/2910.7.52.193 – 10.7.52.19810.7.52.199
15410.7.52.200/2910.7.52.201 – 10.7.52.20610.7.52.207
15510.7.52.208/2910.7.52.209 – 10.7.52.21410.7.52.215
15610.7.52.216/2910.7.52.217 – 10.7.52.22210.7.52.223
15710.7.52.224/2910.7.52.225 – 10.7.52.23010.7.52.231
15810.7.52.232/2910.7.52.233 – 10.7.52.23810.7.52.239
15910.7.52.240/2910.7.52.241 – 10.7.52.24610.7.52.247
16010.7.52.248/2910.7.52.249 – 10.7.52.25410.7.52.255
16110.7.53.0/2910.7.53.1 – 10.7.53.610.7.53.7
16210.7.53.8/2910.7.53.9 – 10.7.53.1410.7.53.15
16310.7.53.16/2910.7.53.17 – 10.7.53.2210.7.53.23
16410.7.53.24/2910.7.53.25 – 10.7.53.3010.7.53.31
16510.7.53.32/2910.7.53.33 – 10.7.53.3810.7.53.39
16610.7.53.40/2910.7.53.41 – 10.7.53.4610.7.53.47
16710.7.53.48/2910.7.53.49 – 10.7.53.5410.7.53.55
16810.7.53.56/2910.7.53.57 – 10.7.53.6210.7.53.63
16910.7.53.64/2910.7.53.65 – 10.7.53.7010.7.53.71
17010.7.53.72/2910.7.53.73 – 10.7.53.7810.7.53.79
17110.7.53.80/2910.7.53.81 – 10.7.53.8610.7.53.87
17210.7.53.88/2910.7.53.89 – 10.7.53.9410.7.53.95
17310.7.53.96/2910.7.53.97 – 10.7.53.10210.7.53.103
17410.7.53.104/2910.7.53.105 – 10.7.53.11010.7.53.111
17510.7.53.112/2910.7.53.113 – 10.7.53.11810.7.53.119
17610.7.53.120/2910.7.53.121 – 10.7.53.12610.7.53.127
17710.7.53.128/2910.7.53.129 – 10.7.53.13410.7.53.135
17810.7.53.136/2910.7.53.137 – 10.7.53.14210.7.53.143
17910.7.53.144/2910.7.53.145 – 10.7.53.15010.7.53.151
18010.7.53.152/2910.7.53.153 – 10.7.53.15810.7.53.159
18110.7.53.160/2910.7.53.161 – 10.7.53.16610.7.53.167
18210.7.53.168/2910.7.53.169 – 10.7.53.17410.7.53.175
18310.7.53.176/2910.7.53.177 – 10.7.53.18210.7.53.183
18410.7.53.184/2910.7.53.185 – 10.7.53.19010.7.53.191
18510.7.53.192/2910.7.53.193 – 10.7.53.19810.7.53.199
18610.7.53.200/2910.7.53.201 – 10.7.53.20610.7.53.207
18710.7.53.208/2910.7.53.209 – 10.7.53.21410.7.53.215
18810.7.53.216/2910.7.53.217 – 10.7.53.22210.7.53.223
18910.7.53.224/2910.7.53.225 – 10.7.53.23010.7.53.231
19010.7.53.232/2910.7.53.233 – 10.7.53.23810.7.53.239
19110.7.53.240/2910.7.53.241 – 10.7.53.24610.7.53.247
19210.7.53.248/2910.7.53.249 – 10.7.53.25410.7.53.255
19310.7.54.0/2910.7.54.1 – 10.7.54.610.7.54.7
19410.7.54.8/2910.7.54.9 – 10.7.54.1410.7.54.15
19510.7.54.16/2910.7.54.17 – 10.7.54.2210.7.54.23
19610.7.54.24/2910.7.54.25 – 10.7.54.3010.7.54.31
19710.7.54.32/2910.7.54.33 – 10.7.54.3810.7.54.39
19810.7.54.40/2910.7.54.41 – 10.7.54.4610.7.54.47
19910.7.54.48/2910.7.54.49 – 10.7.54.5410.7.54.55
20010.7.54.56/2910.7.54.57 – 10.7.54.6210.7.54.63
20110.7.54.64/2910.7.54.65 – 10.7.54.7010.7.54.71
20210.7.54.72/2910.7.54.73 – 10.7.54.7810.7.54.79
20310.7.54.80/2910.7.54.81 – 10.7.54.8610.7.54.87
20410.7.54.88/2910.7.54.89 – 10.7.54.9410.7.54.95
20510.7.54.96/2910.7.54.97 – 10.7.54.10210.7.54.103
20610.7.54.104/2910.7.54.105 – 10.7.54.11010.7.54.111
20710.7.54.112/2910.7.54.113 – 10.7.54.11810.7.54.119
20810.7.54.120/2910.7.54.121 – 10.7.54.12610.7.54.127
20910.7.54.128/2910.7.54.129 – 10.7.54.13410.7.54.135
21010.7.54.136/2910.7.54.137 – 10.7.54.14210.7.54.143
21110.7.54.144/2910.7.54.145 – 10.7.54.15010.7.54.151
21210.7.54.152/2910.7.54.153 – 10.7.54.15810.7.54.159
21310.7.54.160/2910.7.54.161 – 10.7.54.16610.7.54.167
21410.7.54.168/2910.7.54.169 – 10.7.54.17410.7.54.175
21510.7.54.176/2910.7.54.177 – 10.7.54.18210.7.54.183
21610.7.54.184/2910.7.54.185 – 10.7.54.19010.7.54.191
21710.7.54.192/2910.7.54.193 – 10.7.54.19810.7.54.199
21810.7.54.200/2910.7.54.201 – 10.7.54.20610.7.54.207
21910.7.54.208/2910.7.54.209 – 10.7.54.21410.7.54.215
22010.7.54.216/2910.7.54.217 – 10.7.54.22210.7.54.223
22110.7.54.224/2910.7.54.225 – 10.7.54.23010.7.54.231
22210.7.54.232/2910.7.54.233 – 10.7.54.23810.7.54.239
22310.7.54.240/2910.7.54.241 – 10.7.54.24610.7.54.247
22410.7.54.248/2910.7.54.249 – 10.7.54.25410.7.54.255
22510.7.55.0/2910.7.55.1 – 10.7.55.610.7.55.7
22610.7.55.8/2910.7.55.9 – 10.7.55.1410.7.55.15
22710.7.55.16/2910.7.55.17 – 10.7.55.2210.7.55.23
22810.7.55.24/2910.7.55.25 – 10.7.55.3010.7.55.31
22910.7.55.32/2910.7.55.33 – 10.7.55.3810.7.55.39
23010.7.55.40/2910.7.55.41 – 10.7.55.4610.7.55.47
23110.7.55.48/2910.7.55.49 – 10.7.55.5410.7.55.55
23210.7.55.56/2910.7.55.57 – 10.7.55.6210.7.55.63
23310.7.55.64/2910.7.55.65 – 10.7.55.7010.7.55.71
23410.7.55.72/2910.7.55.73 – 10.7.55.7810.7.55.79
23510.7.55.80/2910.7.55.81 – 10.7.55.8610.7.55.87
23610.7.55.88/2910.7.55.89 – 10.7.55.9410.7.55.95
23710.7.55.96/2910.7.55.97 – 10.7.55.10210.7.55.103
23810.7.55.104/2910.7.55.105 – 10.7.55.11010.7.55.111
23910.7.55.112/2910.7.55.113 – 10.7.55.11810.7.55.119
24010.7.55.120/2910.7.55.121 – 10.7.55.12610.7.55.127
24110.7.55.128/2910.7.55.129 – 10.7.55.13410.7.55.135
24210.7.55.136/2910.7.55.137 – 10.7.55.14210.7.55.143
24310.7.55.144/2910.7.55.145 – 10.7.55.15010.7.55.151
24410.7.55.152/2910.7.55.153 – 10.7.55.15810.7.55.159
24510.7.55.160/2910.7.55.161 – 10.7.55.16610.7.55.167
24610.7.55.168/2910.7.55.169 – 10.7.55.17410.7.55.175
24710.7.55.176/2910.7.55.177 – 10.7.55.18210.7.55.183
24810.7.55.184/2910.7.55.185 – 10.7.55.19010.7.55.191
24910.7.55.192/2910.7.55.193 – 10.7.55.19810.7.55.199
25010.7.55.200/2910.7.55.201 – 10.7.55.20610.7.55.207
25110.7.55.208/2910.7.55.209 – 10.7.55.21410.7.55.215
25210.7.55.216/2910.7.55.217 – 10.7.55.22210.7.55.223
25310.7.55.224/2910.7.55.225 – 10.7.55.23010.7.55.231
25410.7.55.232/2910.7.55.233 – 10.7.55.23810.7.55.239
25510.7.55.240/2910.7.55.241 – 10.7.55.24610.7.55.247
25610.7.55.248/2910.7.55.249 – 10.7.55.25410.7.55.255
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 →