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
private IP (RFC 1918)10.17.64.0/18
network10.17.64.0/18
broadcast10.17.127.255
first host10.17.64.1
last host10.17.127.254
subnet mask255.255.192.0
wildcard0.0.63.255
addresses16,384
usable hosts16,382
classA
ipcalc 10.17.64.0/18
address00001010.00010001.01000000.00000000
subnet mask11111111.11111111.11000000.00000000
network00001010.00010001.01000000.00000000
broadcast00001010.00010001.01111111.11111111
green = network part, grey = host part
hex0x0a114000
decimal168902656
reverse dns0.64.17.10.in-addr.arpa
ipv4-mapped::ffff:a11:4000

/18 split into /29 · 2,048 subnets

close ×
#networkhost rangebroadcast
110.17.64.0/2910.17.64.1 – 10.17.64.610.17.64.7
210.17.64.8/2910.17.64.9 – 10.17.64.1410.17.64.15
310.17.64.16/2910.17.64.17 – 10.17.64.2210.17.64.23
410.17.64.24/2910.17.64.25 – 10.17.64.3010.17.64.31
510.17.64.32/2910.17.64.33 – 10.17.64.3810.17.64.39
610.17.64.40/2910.17.64.41 – 10.17.64.4610.17.64.47
710.17.64.48/2910.17.64.49 – 10.17.64.5410.17.64.55
810.17.64.56/2910.17.64.57 – 10.17.64.6210.17.64.63
910.17.64.64/2910.17.64.65 – 10.17.64.7010.17.64.71
1010.17.64.72/2910.17.64.73 – 10.17.64.7810.17.64.79
1110.17.64.80/2910.17.64.81 – 10.17.64.8610.17.64.87
1210.17.64.88/2910.17.64.89 – 10.17.64.9410.17.64.95
1310.17.64.96/2910.17.64.97 – 10.17.64.10210.17.64.103
1410.17.64.104/2910.17.64.105 – 10.17.64.11010.17.64.111
1510.17.64.112/2910.17.64.113 – 10.17.64.11810.17.64.119
1610.17.64.120/2910.17.64.121 – 10.17.64.12610.17.64.127
1710.17.64.128/2910.17.64.129 – 10.17.64.13410.17.64.135
1810.17.64.136/2910.17.64.137 – 10.17.64.14210.17.64.143
1910.17.64.144/2910.17.64.145 – 10.17.64.15010.17.64.151
2010.17.64.152/2910.17.64.153 – 10.17.64.15810.17.64.159
2110.17.64.160/2910.17.64.161 – 10.17.64.16610.17.64.167
2210.17.64.168/2910.17.64.169 – 10.17.64.17410.17.64.175
2310.17.64.176/2910.17.64.177 – 10.17.64.18210.17.64.183
2410.17.64.184/2910.17.64.185 – 10.17.64.19010.17.64.191
2510.17.64.192/2910.17.64.193 – 10.17.64.19810.17.64.199
2610.17.64.200/2910.17.64.201 – 10.17.64.20610.17.64.207
2710.17.64.208/2910.17.64.209 – 10.17.64.21410.17.64.215
2810.17.64.216/2910.17.64.217 – 10.17.64.22210.17.64.223
2910.17.64.224/2910.17.64.225 – 10.17.64.23010.17.64.231
3010.17.64.232/2910.17.64.233 – 10.17.64.23810.17.64.239
3110.17.64.240/2910.17.64.241 – 10.17.64.24610.17.64.247
3210.17.64.248/2910.17.64.249 – 10.17.64.25410.17.64.255
3310.17.65.0/2910.17.65.1 – 10.17.65.610.17.65.7
3410.17.65.8/2910.17.65.9 – 10.17.65.1410.17.65.15
3510.17.65.16/2910.17.65.17 – 10.17.65.2210.17.65.23
3610.17.65.24/2910.17.65.25 – 10.17.65.3010.17.65.31
3710.17.65.32/2910.17.65.33 – 10.17.65.3810.17.65.39
3810.17.65.40/2910.17.65.41 – 10.17.65.4610.17.65.47
3910.17.65.48/2910.17.65.49 – 10.17.65.5410.17.65.55
4010.17.65.56/2910.17.65.57 – 10.17.65.6210.17.65.63
4110.17.65.64/2910.17.65.65 – 10.17.65.7010.17.65.71
4210.17.65.72/2910.17.65.73 – 10.17.65.7810.17.65.79
4310.17.65.80/2910.17.65.81 – 10.17.65.8610.17.65.87
4410.17.65.88/2910.17.65.89 – 10.17.65.9410.17.65.95
4510.17.65.96/2910.17.65.97 – 10.17.65.10210.17.65.103
4610.17.65.104/2910.17.65.105 – 10.17.65.11010.17.65.111
4710.17.65.112/2910.17.65.113 – 10.17.65.11810.17.65.119
4810.17.65.120/2910.17.65.121 – 10.17.65.12610.17.65.127
4910.17.65.128/2910.17.65.129 – 10.17.65.13410.17.65.135
5010.17.65.136/2910.17.65.137 – 10.17.65.14210.17.65.143
5110.17.65.144/2910.17.65.145 – 10.17.65.15010.17.65.151
5210.17.65.152/2910.17.65.153 – 10.17.65.15810.17.65.159
5310.17.65.160/2910.17.65.161 – 10.17.65.16610.17.65.167
5410.17.65.168/2910.17.65.169 – 10.17.65.17410.17.65.175
5510.17.65.176/2910.17.65.177 – 10.17.65.18210.17.65.183
5610.17.65.184/2910.17.65.185 – 10.17.65.19010.17.65.191
5710.17.65.192/2910.17.65.193 – 10.17.65.19810.17.65.199
5810.17.65.200/2910.17.65.201 – 10.17.65.20610.17.65.207
5910.17.65.208/2910.17.65.209 – 10.17.65.21410.17.65.215
6010.17.65.216/2910.17.65.217 – 10.17.65.22210.17.65.223
6110.17.65.224/2910.17.65.225 – 10.17.65.23010.17.65.231
6210.17.65.232/2910.17.65.233 – 10.17.65.23810.17.65.239
6310.17.65.240/2910.17.65.241 – 10.17.65.24610.17.65.247
6410.17.65.248/2910.17.65.249 – 10.17.65.25410.17.65.255
6510.17.66.0/2910.17.66.1 – 10.17.66.610.17.66.7
6610.17.66.8/2910.17.66.9 – 10.17.66.1410.17.66.15
6710.17.66.16/2910.17.66.17 – 10.17.66.2210.17.66.23
6810.17.66.24/2910.17.66.25 – 10.17.66.3010.17.66.31
6910.17.66.32/2910.17.66.33 – 10.17.66.3810.17.66.39
7010.17.66.40/2910.17.66.41 – 10.17.66.4610.17.66.47
7110.17.66.48/2910.17.66.49 – 10.17.66.5410.17.66.55
7210.17.66.56/2910.17.66.57 – 10.17.66.6210.17.66.63
7310.17.66.64/2910.17.66.65 – 10.17.66.7010.17.66.71
7410.17.66.72/2910.17.66.73 – 10.17.66.7810.17.66.79
7510.17.66.80/2910.17.66.81 – 10.17.66.8610.17.66.87
7610.17.66.88/2910.17.66.89 – 10.17.66.9410.17.66.95
7710.17.66.96/2910.17.66.97 – 10.17.66.10210.17.66.103
7810.17.66.104/2910.17.66.105 – 10.17.66.11010.17.66.111
7910.17.66.112/2910.17.66.113 – 10.17.66.11810.17.66.119
8010.17.66.120/2910.17.66.121 – 10.17.66.12610.17.66.127
8110.17.66.128/2910.17.66.129 – 10.17.66.13410.17.66.135
8210.17.66.136/2910.17.66.137 – 10.17.66.14210.17.66.143
8310.17.66.144/2910.17.66.145 – 10.17.66.15010.17.66.151
8410.17.66.152/2910.17.66.153 – 10.17.66.15810.17.66.159
8510.17.66.160/2910.17.66.161 – 10.17.66.16610.17.66.167
8610.17.66.168/2910.17.66.169 – 10.17.66.17410.17.66.175
8710.17.66.176/2910.17.66.177 – 10.17.66.18210.17.66.183
8810.17.66.184/2910.17.66.185 – 10.17.66.19010.17.66.191
8910.17.66.192/2910.17.66.193 – 10.17.66.19810.17.66.199
9010.17.66.200/2910.17.66.201 – 10.17.66.20610.17.66.207
9110.17.66.208/2910.17.66.209 – 10.17.66.21410.17.66.215
9210.17.66.216/2910.17.66.217 – 10.17.66.22210.17.66.223
9310.17.66.224/2910.17.66.225 – 10.17.66.23010.17.66.231
9410.17.66.232/2910.17.66.233 – 10.17.66.23810.17.66.239
9510.17.66.240/2910.17.66.241 – 10.17.66.24610.17.66.247
9610.17.66.248/2910.17.66.249 – 10.17.66.25410.17.66.255
9710.17.67.0/2910.17.67.1 – 10.17.67.610.17.67.7
9810.17.67.8/2910.17.67.9 – 10.17.67.1410.17.67.15
9910.17.67.16/2910.17.67.17 – 10.17.67.2210.17.67.23
10010.17.67.24/2910.17.67.25 – 10.17.67.3010.17.67.31
10110.17.67.32/2910.17.67.33 – 10.17.67.3810.17.67.39
10210.17.67.40/2910.17.67.41 – 10.17.67.4610.17.67.47
10310.17.67.48/2910.17.67.49 – 10.17.67.5410.17.67.55
10410.17.67.56/2910.17.67.57 – 10.17.67.6210.17.67.63
10510.17.67.64/2910.17.67.65 – 10.17.67.7010.17.67.71
10610.17.67.72/2910.17.67.73 – 10.17.67.7810.17.67.79
10710.17.67.80/2910.17.67.81 – 10.17.67.8610.17.67.87
10810.17.67.88/2910.17.67.89 – 10.17.67.9410.17.67.95
10910.17.67.96/2910.17.67.97 – 10.17.67.10210.17.67.103
11010.17.67.104/2910.17.67.105 – 10.17.67.11010.17.67.111
11110.17.67.112/2910.17.67.113 – 10.17.67.11810.17.67.119
11210.17.67.120/2910.17.67.121 – 10.17.67.12610.17.67.127
11310.17.67.128/2910.17.67.129 – 10.17.67.13410.17.67.135
11410.17.67.136/2910.17.67.137 – 10.17.67.14210.17.67.143
11510.17.67.144/2910.17.67.145 – 10.17.67.15010.17.67.151
11610.17.67.152/2910.17.67.153 – 10.17.67.15810.17.67.159
11710.17.67.160/2910.17.67.161 – 10.17.67.16610.17.67.167
11810.17.67.168/2910.17.67.169 – 10.17.67.17410.17.67.175
11910.17.67.176/2910.17.67.177 – 10.17.67.18210.17.67.183
12010.17.67.184/2910.17.67.185 – 10.17.67.19010.17.67.191
12110.17.67.192/2910.17.67.193 – 10.17.67.19810.17.67.199
12210.17.67.200/2910.17.67.201 – 10.17.67.20610.17.67.207
12310.17.67.208/2910.17.67.209 – 10.17.67.21410.17.67.215
12410.17.67.216/2910.17.67.217 – 10.17.67.22210.17.67.223
12510.17.67.224/2910.17.67.225 – 10.17.67.23010.17.67.231
12610.17.67.232/2910.17.67.233 – 10.17.67.23810.17.67.239
12710.17.67.240/2910.17.67.241 – 10.17.67.24610.17.67.247
12810.17.67.248/2910.17.67.249 – 10.17.67.25410.17.67.255
12910.17.68.0/2910.17.68.1 – 10.17.68.610.17.68.7
13010.17.68.8/2910.17.68.9 – 10.17.68.1410.17.68.15
13110.17.68.16/2910.17.68.17 – 10.17.68.2210.17.68.23
13210.17.68.24/2910.17.68.25 – 10.17.68.3010.17.68.31
13310.17.68.32/2910.17.68.33 – 10.17.68.3810.17.68.39
13410.17.68.40/2910.17.68.41 – 10.17.68.4610.17.68.47
13510.17.68.48/2910.17.68.49 – 10.17.68.5410.17.68.55
13610.17.68.56/2910.17.68.57 – 10.17.68.6210.17.68.63
13710.17.68.64/2910.17.68.65 – 10.17.68.7010.17.68.71
13810.17.68.72/2910.17.68.73 – 10.17.68.7810.17.68.79
13910.17.68.80/2910.17.68.81 – 10.17.68.8610.17.68.87
14010.17.68.88/2910.17.68.89 – 10.17.68.9410.17.68.95
14110.17.68.96/2910.17.68.97 – 10.17.68.10210.17.68.103
14210.17.68.104/2910.17.68.105 – 10.17.68.11010.17.68.111
14310.17.68.112/2910.17.68.113 – 10.17.68.11810.17.68.119
14410.17.68.120/2910.17.68.121 – 10.17.68.12610.17.68.127
14510.17.68.128/2910.17.68.129 – 10.17.68.13410.17.68.135
14610.17.68.136/2910.17.68.137 – 10.17.68.14210.17.68.143
14710.17.68.144/2910.17.68.145 – 10.17.68.15010.17.68.151
14810.17.68.152/2910.17.68.153 – 10.17.68.15810.17.68.159
14910.17.68.160/2910.17.68.161 – 10.17.68.16610.17.68.167
15010.17.68.168/2910.17.68.169 – 10.17.68.17410.17.68.175
15110.17.68.176/2910.17.68.177 – 10.17.68.18210.17.68.183
15210.17.68.184/2910.17.68.185 – 10.17.68.19010.17.68.191
15310.17.68.192/2910.17.68.193 – 10.17.68.19810.17.68.199
15410.17.68.200/2910.17.68.201 – 10.17.68.20610.17.68.207
15510.17.68.208/2910.17.68.209 – 10.17.68.21410.17.68.215
15610.17.68.216/2910.17.68.217 – 10.17.68.22210.17.68.223
15710.17.68.224/2910.17.68.225 – 10.17.68.23010.17.68.231
15810.17.68.232/2910.17.68.233 – 10.17.68.23810.17.68.239
15910.17.68.240/2910.17.68.241 – 10.17.68.24610.17.68.247
16010.17.68.248/2910.17.68.249 – 10.17.68.25410.17.68.255
16110.17.69.0/2910.17.69.1 – 10.17.69.610.17.69.7
16210.17.69.8/2910.17.69.9 – 10.17.69.1410.17.69.15
16310.17.69.16/2910.17.69.17 – 10.17.69.2210.17.69.23
16410.17.69.24/2910.17.69.25 – 10.17.69.3010.17.69.31
16510.17.69.32/2910.17.69.33 – 10.17.69.3810.17.69.39
16610.17.69.40/2910.17.69.41 – 10.17.69.4610.17.69.47
16710.17.69.48/2910.17.69.49 – 10.17.69.5410.17.69.55
16810.17.69.56/2910.17.69.57 – 10.17.69.6210.17.69.63
16910.17.69.64/2910.17.69.65 – 10.17.69.7010.17.69.71
17010.17.69.72/2910.17.69.73 – 10.17.69.7810.17.69.79
17110.17.69.80/2910.17.69.81 – 10.17.69.8610.17.69.87
17210.17.69.88/2910.17.69.89 – 10.17.69.9410.17.69.95
17310.17.69.96/2910.17.69.97 – 10.17.69.10210.17.69.103
17410.17.69.104/2910.17.69.105 – 10.17.69.11010.17.69.111
17510.17.69.112/2910.17.69.113 – 10.17.69.11810.17.69.119
17610.17.69.120/2910.17.69.121 – 10.17.69.12610.17.69.127
17710.17.69.128/2910.17.69.129 – 10.17.69.13410.17.69.135
17810.17.69.136/2910.17.69.137 – 10.17.69.14210.17.69.143
17910.17.69.144/2910.17.69.145 – 10.17.69.15010.17.69.151
18010.17.69.152/2910.17.69.153 – 10.17.69.15810.17.69.159
18110.17.69.160/2910.17.69.161 – 10.17.69.16610.17.69.167
18210.17.69.168/2910.17.69.169 – 10.17.69.17410.17.69.175
18310.17.69.176/2910.17.69.177 – 10.17.69.18210.17.69.183
18410.17.69.184/2910.17.69.185 – 10.17.69.19010.17.69.191
18510.17.69.192/2910.17.69.193 – 10.17.69.19810.17.69.199
18610.17.69.200/2910.17.69.201 – 10.17.69.20610.17.69.207
18710.17.69.208/2910.17.69.209 – 10.17.69.21410.17.69.215
18810.17.69.216/2910.17.69.217 – 10.17.69.22210.17.69.223
18910.17.69.224/2910.17.69.225 – 10.17.69.23010.17.69.231
19010.17.69.232/2910.17.69.233 – 10.17.69.23810.17.69.239
19110.17.69.240/2910.17.69.241 – 10.17.69.24610.17.69.247
19210.17.69.248/2910.17.69.249 – 10.17.69.25410.17.69.255
19310.17.70.0/2910.17.70.1 – 10.17.70.610.17.70.7
19410.17.70.8/2910.17.70.9 – 10.17.70.1410.17.70.15
19510.17.70.16/2910.17.70.17 – 10.17.70.2210.17.70.23
19610.17.70.24/2910.17.70.25 – 10.17.70.3010.17.70.31
19710.17.70.32/2910.17.70.33 – 10.17.70.3810.17.70.39
19810.17.70.40/2910.17.70.41 – 10.17.70.4610.17.70.47
19910.17.70.48/2910.17.70.49 – 10.17.70.5410.17.70.55
20010.17.70.56/2910.17.70.57 – 10.17.70.6210.17.70.63
20110.17.70.64/2910.17.70.65 – 10.17.70.7010.17.70.71
20210.17.70.72/2910.17.70.73 – 10.17.70.7810.17.70.79
20310.17.70.80/2910.17.70.81 – 10.17.70.8610.17.70.87
20410.17.70.88/2910.17.70.89 – 10.17.70.9410.17.70.95
20510.17.70.96/2910.17.70.97 – 10.17.70.10210.17.70.103
20610.17.70.104/2910.17.70.105 – 10.17.70.11010.17.70.111
20710.17.70.112/2910.17.70.113 – 10.17.70.11810.17.70.119
20810.17.70.120/2910.17.70.121 – 10.17.70.12610.17.70.127
20910.17.70.128/2910.17.70.129 – 10.17.70.13410.17.70.135
21010.17.70.136/2910.17.70.137 – 10.17.70.14210.17.70.143
21110.17.70.144/2910.17.70.145 – 10.17.70.15010.17.70.151
21210.17.70.152/2910.17.70.153 – 10.17.70.15810.17.70.159
21310.17.70.160/2910.17.70.161 – 10.17.70.16610.17.70.167
21410.17.70.168/2910.17.70.169 – 10.17.70.17410.17.70.175
21510.17.70.176/2910.17.70.177 – 10.17.70.18210.17.70.183
21610.17.70.184/2910.17.70.185 – 10.17.70.19010.17.70.191
21710.17.70.192/2910.17.70.193 – 10.17.70.19810.17.70.199
21810.17.70.200/2910.17.70.201 – 10.17.70.20610.17.70.207
21910.17.70.208/2910.17.70.209 – 10.17.70.21410.17.70.215
22010.17.70.216/2910.17.70.217 – 10.17.70.22210.17.70.223
22110.17.70.224/2910.17.70.225 – 10.17.70.23010.17.70.231
22210.17.70.232/2910.17.70.233 – 10.17.70.23810.17.70.239
22310.17.70.240/2910.17.70.241 – 10.17.70.24610.17.70.247
22410.17.70.248/2910.17.70.249 – 10.17.70.25410.17.70.255
22510.17.71.0/2910.17.71.1 – 10.17.71.610.17.71.7
22610.17.71.8/2910.17.71.9 – 10.17.71.1410.17.71.15
22710.17.71.16/2910.17.71.17 – 10.17.71.2210.17.71.23
22810.17.71.24/2910.17.71.25 – 10.17.71.3010.17.71.31
22910.17.71.32/2910.17.71.33 – 10.17.71.3810.17.71.39
23010.17.71.40/2910.17.71.41 – 10.17.71.4610.17.71.47
23110.17.71.48/2910.17.71.49 – 10.17.71.5410.17.71.55
23210.17.71.56/2910.17.71.57 – 10.17.71.6210.17.71.63
23310.17.71.64/2910.17.71.65 – 10.17.71.7010.17.71.71
23410.17.71.72/2910.17.71.73 – 10.17.71.7810.17.71.79
23510.17.71.80/2910.17.71.81 – 10.17.71.8610.17.71.87
23610.17.71.88/2910.17.71.89 – 10.17.71.9410.17.71.95
23710.17.71.96/2910.17.71.97 – 10.17.71.10210.17.71.103
23810.17.71.104/2910.17.71.105 – 10.17.71.11010.17.71.111
23910.17.71.112/2910.17.71.113 – 10.17.71.11810.17.71.119
24010.17.71.120/2910.17.71.121 – 10.17.71.12610.17.71.127
24110.17.71.128/2910.17.71.129 – 10.17.71.13410.17.71.135
24210.17.71.136/2910.17.71.137 – 10.17.71.14210.17.71.143
24310.17.71.144/2910.17.71.145 – 10.17.71.15010.17.71.151
24410.17.71.152/2910.17.71.153 – 10.17.71.15810.17.71.159
24510.17.71.160/2910.17.71.161 – 10.17.71.16610.17.71.167
24610.17.71.168/2910.17.71.169 – 10.17.71.17410.17.71.175
24710.17.71.176/2910.17.71.177 – 10.17.71.18210.17.71.183
24810.17.71.184/2910.17.71.185 – 10.17.71.19010.17.71.191
24910.17.71.192/2910.17.71.193 – 10.17.71.19810.17.71.199
25010.17.71.200/2910.17.71.201 – 10.17.71.20610.17.71.207
25110.17.71.208/2910.17.71.209 – 10.17.71.21410.17.71.215
25210.17.71.216/2910.17.71.217 – 10.17.71.22210.17.71.223
25310.17.71.224/2910.17.71.225 – 10.17.71.23010.17.71.231
25410.17.71.232/2910.17.71.233 – 10.17.71.23810.17.71.239
25510.17.71.240/2910.17.71.241 – 10.17.71.24610.17.71.247
25610.17.71.248/2910.17.71.249 – 10.17.71.25410.17.71.255

showing 256 of 2,048

01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /18
/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-
/18255.255.192.016,38416,3821
/19255.255.224.08,1928,1902 split →
/20255.255.240.04,0964,0944 split →
/21255.255.248.02,0482,0468 split →
/22255.255.252.01,0241,02216 split →
/23255.255.254.051251032 split →
/24255.255.255.025625464 split →
/25255.255.255.128128126128 split →
/26255.255.255.1926462256 split →
/27255.255.255.2243230512 split →
/28255.255.255.24016141,024 split →
/29255.255.255.248862,048 split →
/30255.255.255.252424,096 split →
/31255.255.255.254228,192 split →
/32255.255.255.2551116,384 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 →