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)10.12.32.0/20
network10.12.32.0/20
broadcast10.12.47.255
first host10.12.32.1
last host10.12.47.254
subnet mask255.255.240.0
wildcard0.0.15.255
addresses4,096
usable hosts4,094
classA
ipcalc 10.12.32.0/20
address00001010.00001100.00100000.00000000
subnet mask11111111.11111111.11110000.00000000
network00001010.00001100.00100000.00000000
broadcast00001010.00001100.00101111.11111111
green = network part, grey = host part
hex0x0a0c2000
decimal168566784
reverse dns0.32.12.10.in-addr.arpa
ipv4-mapped::ffff:a0c:2000

/20 split into /30 · 1,024 subnets

close ×
#networkhost rangebroadcast
110.12.32.0/3010.12.32.1 – 10.12.32.210.12.32.3
210.12.32.4/3010.12.32.5 – 10.12.32.610.12.32.7
310.12.32.8/3010.12.32.9 – 10.12.32.1010.12.32.11
410.12.32.12/3010.12.32.13 – 10.12.32.1410.12.32.15
510.12.32.16/3010.12.32.17 – 10.12.32.1810.12.32.19
610.12.32.20/3010.12.32.21 – 10.12.32.2210.12.32.23
710.12.32.24/3010.12.32.25 – 10.12.32.2610.12.32.27
810.12.32.28/3010.12.32.29 – 10.12.32.3010.12.32.31
910.12.32.32/3010.12.32.33 – 10.12.32.3410.12.32.35
1010.12.32.36/3010.12.32.37 – 10.12.32.3810.12.32.39
1110.12.32.40/3010.12.32.41 – 10.12.32.4210.12.32.43
1210.12.32.44/3010.12.32.45 – 10.12.32.4610.12.32.47
1310.12.32.48/3010.12.32.49 – 10.12.32.5010.12.32.51
1410.12.32.52/3010.12.32.53 – 10.12.32.5410.12.32.55
1510.12.32.56/3010.12.32.57 – 10.12.32.5810.12.32.59
1610.12.32.60/3010.12.32.61 – 10.12.32.6210.12.32.63
1710.12.32.64/3010.12.32.65 – 10.12.32.6610.12.32.67
1810.12.32.68/3010.12.32.69 – 10.12.32.7010.12.32.71
1910.12.32.72/3010.12.32.73 – 10.12.32.7410.12.32.75
2010.12.32.76/3010.12.32.77 – 10.12.32.7810.12.32.79
2110.12.32.80/3010.12.32.81 – 10.12.32.8210.12.32.83
2210.12.32.84/3010.12.32.85 – 10.12.32.8610.12.32.87
2310.12.32.88/3010.12.32.89 – 10.12.32.9010.12.32.91
2410.12.32.92/3010.12.32.93 – 10.12.32.9410.12.32.95
2510.12.32.96/3010.12.32.97 – 10.12.32.9810.12.32.99
2610.12.32.100/3010.12.32.101 – 10.12.32.10210.12.32.103
2710.12.32.104/3010.12.32.105 – 10.12.32.10610.12.32.107
2810.12.32.108/3010.12.32.109 – 10.12.32.11010.12.32.111
2910.12.32.112/3010.12.32.113 – 10.12.32.11410.12.32.115
3010.12.32.116/3010.12.32.117 – 10.12.32.11810.12.32.119
3110.12.32.120/3010.12.32.121 – 10.12.32.12210.12.32.123
3210.12.32.124/3010.12.32.125 – 10.12.32.12610.12.32.127
3310.12.32.128/3010.12.32.129 – 10.12.32.13010.12.32.131
3410.12.32.132/3010.12.32.133 – 10.12.32.13410.12.32.135
3510.12.32.136/3010.12.32.137 – 10.12.32.13810.12.32.139
3610.12.32.140/3010.12.32.141 – 10.12.32.14210.12.32.143
3710.12.32.144/3010.12.32.145 – 10.12.32.14610.12.32.147
3810.12.32.148/3010.12.32.149 – 10.12.32.15010.12.32.151
3910.12.32.152/3010.12.32.153 – 10.12.32.15410.12.32.155
4010.12.32.156/3010.12.32.157 – 10.12.32.15810.12.32.159
4110.12.32.160/3010.12.32.161 – 10.12.32.16210.12.32.163
4210.12.32.164/3010.12.32.165 – 10.12.32.16610.12.32.167
4310.12.32.168/3010.12.32.169 – 10.12.32.17010.12.32.171
4410.12.32.172/3010.12.32.173 – 10.12.32.17410.12.32.175
4510.12.32.176/3010.12.32.177 – 10.12.32.17810.12.32.179
4610.12.32.180/3010.12.32.181 – 10.12.32.18210.12.32.183
4710.12.32.184/3010.12.32.185 – 10.12.32.18610.12.32.187
4810.12.32.188/3010.12.32.189 – 10.12.32.19010.12.32.191
4910.12.32.192/3010.12.32.193 – 10.12.32.19410.12.32.195
5010.12.32.196/3010.12.32.197 – 10.12.32.19810.12.32.199
5110.12.32.200/3010.12.32.201 – 10.12.32.20210.12.32.203
5210.12.32.204/3010.12.32.205 – 10.12.32.20610.12.32.207
5310.12.32.208/3010.12.32.209 – 10.12.32.21010.12.32.211
5410.12.32.212/3010.12.32.213 – 10.12.32.21410.12.32.215
5510.12.32.216/3010.12.32.217 – 10.12.32.21810.12.32.219
5610.12.32.220/3010.12.32.221 – 10.12.32.22210.12.32.223
5710.12.32.224/3010.12.32.225 – 10.12.32.22610.12.32.227
5810.12.32.228/3010.12.32.229 – 10.12.32.23010.12.32.231
5910.12.32.232/3010.12.32.233 – 10.12.32.23410.12.32.235
6010.12.32.236/3010.12.32.237 – 10.12.32.23810.12.32.239
6110.12.32.240/3010.12.32.241 – 10.12.32.24210.12.32.243
6210.12.32.244/3010.12.32.245 – 10.12.32.24610.12.32.247
6310.12.32.248/3010.12.32.249 – 10.12.32.25010.12.32.251
6410.12.32.252/3010.12.32.253 – 10.12.32.25410.12.32.255
6510.12.33.0/3010.12.33.1 – 10.12.33.210.12.33.3
6610.12.33.4/3010.12.33.5 – 10.12.33.610.12.33.7
6710.12.33.8/3010.12.33.9 – 10.12.33.1010.12.33.11
6810.12.33.12/3010.12.33.13 – 10.12.33.1410.12.33.15
6910.12.33.16/3010.12.33.17 – 10.12.33.1810.12.33.19
7010.12.33.20/3010.12.33.21 – 10.12.33.2210.12.33.23
7110.12.33.24/3010.12.33.25 – 10.12.33.2610.12.33.27
7210.12.33.28/3010.12.33.29 – 10.12.33.3010.12.33.31
7310.12.33.32/3010.12.33.33 – 10.12.33.3410.12.33.35
7410.12.33.36/3010.12.33.37 – 10.12.33.3810.12.33.39
7510.12.33.40/3010.12.33.41 – 10.12.33.4210.12.33.43
7610.12.33.44/3010.12.33.45 – 10.12.33.4610.12.33.47
7710.12.33.48/3010.12.33.49 – 10.12.33.5010.12.33.51
7810.12.33.52/3010.12.33.53 – 10.12.33.5410.12.33.55
7910.12.33.56/3010.12.33.57 – 10.12.33.5810.12.33.59
8010.12.33.60/3010.12.33.61 – 10.12.33.6210.12.33.63
8110.12.33.64/3010.12.33.65 – 10.12.33.6610.12.33.67
8210.12.33.68/3010.12.33.69 – 10.12.33.7010.12.33.71
8310.12.33.72/3010.12.33.73 – 10.12.33.7410.12.33.75
8410.12.33.76/3010.12.33.77 – 10.12.33.7810.12.33.79
8510.12.33.80/3010.12.33.81 – 10.12.33.8210.12.33.83
8610.12.33.84/3010.12.33.85 – 10.12.33.8610.12.33.87
8710.12.33.88/3010.12.33.89 – 10.12.33.9010.12.33.91
8810.12.33.92/3010.12.33.93 – 10.12.33.9410.12.33.95
8910.12.33.96/3010.12.33.97 – 10.12.33.9810.12.33.99
9010.12.33.100/3010.12.33.101 – 10.12.33.10210.12.33.103
9110.12.33.104/3010.12.33.105 – 10.12.33.10610.12.33.107
9210.12.33.108/3010.12.33.109 – 10.12.33.11010.12.33.111
9310.12.33.112/3010.12.33.113 – 10.12.33.11410.12.33.115
9410.12.33.116/3010.12.33.117 – 10.12.33.11810.12.33.119
9510.12.33.120/3010.12.33.121 – 10.12.33.12210.12.33.123
9610.12.33.124/3010.12.33.125 – 10.12.33.12610.12.33.127
9710.12.33.128/3010.12.33.129 – 10.12.33.13010.12.33.131
9810.12.33.132/3010.12.33.133 – 10.12.33.13410.12.33.135
9910.12.33.136/3010.12.33.137 – 10.12.33.13810.12.33.139
10010.12.33.140/3010.12.33.141 – 10.12.33.14210.12.33.143
10110.12.33.144/3010.12.33.145 – 10.12.33.14610.12.33.147
10210.12.33.148/3010.12.33.149 – 10.12.33.15010.12.33.151
10310.12.33.152/3010.12.33.153 – 10.12.33.15410.12.33.155
10410.12.33.156/3010.12.33.157 – 10.12.33.15810.12.33.159
10510.12.33.160/3010.12.33.161 – 10.12.33.16210.12.33.163
10610.12.33.164/3010.12.33.165 – 10.12.33.16610.12.33.167
10710.12.33.168/3010.12.33.169 – 10.12.33.17010.12.33.171
10810.12.33.172/3010.12.33.173 – 10.12.33.17410.12.33.175
10910.12.33.176/3010.12.33.177 – 10.12.33.17810.12.33.179
11010.12.33.180/3010.12.33.181 – 10.12.33.18210.12.33.183
11110.12.33.184/3010.12.33.185 – 10.12.33.18610.12.33.187
11210.12.33.188/3010.12.33.189 – 10.12.33.19010.12.33.191
11310.12.33.192/3010.12.33.193 – 10.12.33.19410.12.33.195
11410.12.33.196/3010.12.33.197 – 10.12.33.19810.12.33.199
11510.12.33.200/3010.12.33.201 – 10.12.33.20210.12.33.203
11610.12.33.204/3010.12.33.205 – 10.12.33.20610.12.33.207
11710.12.33.208/3010.12.33.209 – 10.12.33.21010.12.33.211
11810.12.33.212/3010.12.33.213 – 10.12.33.21410.12.33.215
11910.12.33.216/3010.12.33.217 – 10.12.33.21810.12.33.219
12010.12.33.220/3010.12.33.221 – 10.12.33.22210.12.33.223
12110.12.33.224/3010.12.33.225 – 10.12.33.22610.12.33.227
12210.12.33.228/3010.12.33.229 – 10.12.33.23010.12.33.231
12310.12.33.232/3010.12.33.233 – 10.12.33.23410.12.33.235
12410.12.33.236/3010.12.33.237 – 10.12.33.23810.12.33.239
12510.12.33.240/3010.12.33.241 – 10.12.33.24210.12.33.243
12610.12.33.244/3010.12.33.245 – 10.12.33.24610.12.33.247
12710.12.33.248/3010.12.33.249 – 10.12.33.25010.12.33.251
12810.12.33.252/3010.12.33.253 – 10.12.33.25410.12.33.255
12910.12.34.0/3010.12.34.1 – 10.12.34.210.12.34.3
13010.12.34.4/3010.12.34.5 – 10.12.34.610.12.34.7
13110.12.34.8/3010.12.34.9 – 10.12.34.1010.12.34.11
13210.12.34.12/3010.12.34.13 – 10.12.34.1410.12.34.15
13310.12.34.16/3010.12.34.17 – 10.12.34.1810.12.34.19
13410.12.34.20/3010.12.34.21 – 10.12.34.2210.12.34.23
13510.12.34.24/3010.12.34.25 – 10.12.34.2610.12.34.27
13610.12.34.28/3010.12.34.29 – 10.12.34.3010.12.34.31
13710.12.34.32/3010.12.34.33 – 10.12.34.3410.12.34.35
13810.12.34.36/3010.12.34.37 – 10.12.34.3810.12.34.39
13910.12.34.40/3010.12.34.41 – 10.12.34.4210.12.34.43
14010.12.34.44/3010.12.34.45 – 10.12.34.4610.12.34.47
14110.12.34.48/3010.12.34.49 – 10.12.34.5010.12.34.51
14210.12.34.52/3010.12.34.53 – 10.12.34.5410.12.34.55
14310.12.34.56/3010.12.34.57 – 10.12.34.5810.12.34.59
14410.12.34.60/3010.12.34.61 – 10.12.34.6210.12.34.63
14510.12.34.64/3010.12.34.65 – 10.12.34.6610.12.34.67
14610.12.34.68/3010.12.34.69 – 10.12.34.7010.12.34.71
14710.12.34.72/3010.12.34.73 – 10.12.34.7410.12.34.75
14810.12.34.76/3010.12.34.77 – 10.12.34.7810.12.34.79
14910.12.34.80/3010.12.34.81 – 10.12.34.8210.12.34.83
15010.12.34.84/3010.12.34.85 – 10.12.34.8610.12.34.87
15110.12.34.88/3010.12.34.89 – 10.12.34.9010.12.34.91
15210.12.34.92/3010.12.34.93 – 10.12.34.9410.12.34.95
15310.12.34.96/3010.12.34.97 – 10.12.34.9810.12.34.99
15410.12.34.100/3010.12.34.101 – 10.12.34.10210.12.34.103
15510.12.34.104/3010.12.34.105 – 10.12.34.10610.12.34.107
15610.12.34.108/3010.12.34.109 – 10.12.34.11010.12.34.111
15710.12.34.112/3010.12.34.113 – 10.12.34.11410.12.34.115
15810.12.34.116/3010.12.34.117 – 10.12.34.11810.12.34.119
15910.12.34.120/3010.12.34.121 – 10.12.34.12210.12.34.123
16010.12.34.124/3010.12.34.125 – 10.12.34.12610.12.34.127
16110.12.34.128/3010.12.34.129 – 10.12.34.13010.12.34.131
16210.12.34.132/3010.12.34.133 – 10.12.34.13410.12.34.135
16310.12.34.136/3010.12.34.137 – 10.12.34.13810.12.34.139
16410.12.34.140/3010.12.34.141 – 10.12.34.14210.12.34.143
16510.12.34.144/3010.12.34.145 – 10.12.34.14610.12.34.147
16610.12.34.148/3010.12.34.149 – 10.12.34.15010.12.34.151
16710.12.34.152/3010.12.34.153 – 10.12.34.15410.12.34.155
16810.12.34.156/3010.12.34.157 – 10.12.34.15810.12.34.159
16910.12.34.160/3010.12.34.161 – 10.12.34.16210.12.34.163
17010.12.34.164/3010.12.34.165 – 10.12.34.16610.12.34.167
17110.12.34.168/3010.12.34.169 – 10.12.34.17010.12.34.171
17210.12.34.172/3010.12.34.173 – 10.12.34.17410.12.34.175
17310.12.34.176/3010.12.34.177 – 10.12.34.17810.12.34.179
17410.12.34.180/3010.12.34.181 – 10.12.34.18210.12.34.183
17510.12.34.184/3010.12.34.185 – 10.12.34.18610.12.34.187
17610.12.34.188/3010.12.34.189 – 10.12.34.19010.12.34.191
17710.12.34.192/3010.12.34.193 – 10.12.34.19410.12.34.195
17810.12.34.196/3010.12.34.197 – 10.12.34.19810.12.34.199
17910.12.34.200/3010.12.34.201 – 10.12.34.20210.12.34.203
18010.12.34.204/3010.12.34.205 – 10.12.34.20610.12.34.207
18110.12.34.208/3010.12.34.209 – 10.12.34.21010.12.34.211
18210.12.34.212/3010.12.34.213 – 10.12.34.21410.12.34.215
18310.12.34.216/3010.12.34.217 – 10.12.34.21810.12.34.219
18410.12.34.220/3010.12.34.221 – 10.12.34.22210.12.34.223
18510.12.34.224/3010.12.34.225 – 10.12.34.22610.12.34.227
18610.12.34.228/3010.12.34.229 – 10.12.34.23010.12.34.231
18710.12.34.232/3010.12.34.233 – 10.12.34.23410.12.34.235
18810.12.34.236/3010.12.34.237 – 10.12.34.23810.12.34.239
18910.12.34.240/3010.12.34.241 – 10.12.34.24210.12.34.243
19010.12.34.244/3010.12.34.245 – 10.12.34.24610.12.34.247
19110.12.34.248/3010.12.34.249 – 10.12.34.25010.12.34.251
19210.12.34.252/3010.12.34.253 – 10.12.34.25410.12.34.255
19310.12.35.0/3010.12.35.1 – 10.12.35.210.12.35.3
19410.12.35.4/3010.12.35.5 – 10.12.35.610.12.35.7
19510.12.35.8/3010.12.35.9 – 10.12.35.1010.12.35.11
19610.12.35.12/3010.12.35.13 – 10.12.35.1410.12.35.15
19710.12.35.16/3010.12.35.17 – 10.12.35.1810.12.35.19
19810.12.35.20/3010.12.35.21 – 10.12.35.2210.12.35.23
19910.12.35.24/3010.12.35.25 – 10.12.35.2610.12.35.27
20010.12.35.28/3010.12.35.29 – 10.12.35.3010.12.35.31
20110.12.35.32/3010.12.35.33 – 10.12.35.3410.12.35.35
20210.12.35.36/3010.12.35.37 – 10.12.35.3810.12.35.39
20310.12.35.40/3010.12.35.41 – 10.12.35.4210.12.35.43
20410.12.35.44/3010.12.35.45 – 10.12.35.4610.12.35.47
20510.12.35.48/3010.12.35.49 – 10.12.35.5010.12.35.51
20610.12.35.52/3010.12.35.53 – 10.12.35.5410.12.35.55
20710.12.35.56/3010.12.35.57 – 10.12.35.5810.12.35.59
20810.12.35.60/3010.12.35.61 – 10.12.35.6210.12.35.63
20910.12.35.64/3010.12.35.65 – 10.12.35.6610.12.35.67
21010.12.35.68/3010.12.35.69 – 10.12.35.7010.12.35.71
21110.12.35.72/3010.12.35.73 – 10.12.35.7410.12.35.75
21210.12.35.76/3010.12.35.77 – 10.12.35.7810.12.35.79
21310.12.35.80/3010.12.35.81 – 10.12.35.8210.12.35.83
21410.12.35.84/3010.12.35.85 – 10.12.35.8610.12.35.87
21510.12.35.88/3010.12.35.89 – 10.12.35.9010.12.35.91
21610.12.35.92/3010.12.35.93 – 10.12.35.9410.12.35.95
21710.12.35.96/3010.12.35.97 – 10.12.35.9810.12.35.99
21810.12.35.100/3010.12.35.101 – 10.12.35.10210.12.35.103
21910.12.35.104/3010.12.35.105 – 10.12.35.10610.12.35.107
22010.12.35.108/3010.12.35.109 – 10.12.35.11010.12.35.111
22110.12.35.112/3010.12.35.113 – 10.12.35.11410.12.35.115
22210.12.35.116/3010.12.35.117 – 10.12.35.11810.12.35.119
22310.12.35.120/3010.12.35.121 – 10.12.35.12210.12.35.123
22410.12.35.124/3010.12.35.125 – 10.12.35.12610.12.35.127
22510.12.35.128/3010.12.35.129 – 10.12.35.13010.12.35.131
22610.12.35.132/3010.12.35.133 – 10.12.35.13410.12.35.135
22710.12.35.136/3010.12.35.137 – 10.12.35.13810.12.35.139
22810.12.35.140/3010.12.35.141 – 10.12.35.14210.12.35.143
22910.12.35.144/3010.12.35.145 – 10.12.35.14610.12.35.147
23010.12.35.148/3010.12.35.149 – 10.12.35.15010.12.35.151
23110.12.35.152/3010.12.35.153 – 10.12.35.15410.12.35.155
23210.12.35.156/3010.12.35.157 – 10.12.35.15810.12.35.159
23310.12.35.160/3010.12.35.161 – 10.12.35.16210.12.35.163
23410.12.35.164/3010.12.35.165 – 10.12.35.16610.12.35.167
23510.12.35.168/3010.12.35.169 – 10.12.35.17010.12.35.171
23610.12.35.172/3010.12.35.173 – 10.12.35.17410.12.35.175
23710.12.35.176/3010.12.35.177 – 10.12.35.17810.12.35.179
23810.12.35.180/3010.12.35.181 – 10.12.35.18210.12.35.183
23910.12.35.184/3010.12.35.185 – 10.12.35.18610.12.35.187
24010.12.35.188/3010.12.35.189 – 10.12.35.19010.12.35.191
24110.12.35.192/3010.12.35.193 – 10.12.35.19410.12.35.195
24210.12.35.196/3010.12.35.197 – 10.12.35.19810.12.35.199
24310.12.35.200/3010.12.35.201 – 10.12.35.20210.12.35.203
24410.12.35.204/3010.12.35.205 – 10.12.35.20610.12.35.207
24510.12.35.208/3010.12.35.209 – 10.12.35.21010.12.35.211
24610.12.35.212/3010.12.35.213 – 10.12.35.21410.12.35.215
24710.12.35.216/3010.12.35.217 – 10.12.35.21810.12.35.219
24810.12.35.220/3010.12.35.221 – 10.12.35.22210.12.35.223
24910.12.35.224/3010.12.35.225 – 10.12.35.22610.12.35.227
25010.12.35.228/3010.12.35.229 – 10.12.35.23010.12.35.231
25110.12.35.232/3010.12.35.233 – 10.12.35.23410.12.35.235
25210.12.35.236/3010.12.35.237 – 10.12.35.23810.12.35.239
25310.12.35.240/3010.12.35.241 – 10.12.35.24210.12.35.243
25410.12.35.244/3010.12.35.245 – 10.12.35.24610.12.35.247
25510.12.35.248/3010.12.35.249 – 10.12.35.25010.12.35.251
25610.12.35.252/3010.12.35.253 – 10.12.35.25410.12.35.255

showing 256 of 1,024

01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /20
/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-
/20255.255.240.04,0964,0941
/21255.255.248.02,0482,0462 split →
/22255.255.252.01,0241,0224 split →
/23255.255.254.05125108 split →
/24255.255.255.025625416 split →
/25255.255.255.12812812632 split →
/26255.255.255.192646264 split →
/27255.255.255.2243230128 split →
/28255.255.255.2401614256 split →
/29255.255.255.24886512 split →
/30255.255.255.252421,024 split →
/31255.255.255.254222,048 split →
/32255.255.255.255114,096 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 →