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)10.12.176.0/20
network10.12.176.0/20
broadcast10.12.191.255
first host10.12.176.1
last host10.12.191.254
subnet mask255.255.240.0
wildcard0.0.15.255
addresses4,096
usable hosts4,094
classA
ipcalc 10.12.176.0/20
address00001010.00001100.10110000.00000000
subnet mask11111111.11111111.11110000.00000000
network00001010.00001100.10110000.00000000
broadcast00001010.00001100.10111111.11111111
green = network part, grey = host part
hex0x0a0cb000
decimal168603648
reverse dns0.176.12.10.in-addr.arpa
ipv4-mapped::ffff:a0c:b000

/20 split into /30 · 1,024 subnets

close ×
#networkhost rangebroadcast
110.12.176.0/3010.12.176.1 – 10.12.176.210.12.176.3
210.12.176.4/3010.12.176.5 – 10.12.176.610.12.176.7
310.12.176.8/3010.12.176.9 – 10.12.176.1010.12.176.11
410.12.176.12/3010.12.176.13 – 10.12.176.1410.12.176.15
510.12.176.16/3010.12.176.17 – 10.12.176.1810.12.176.19
610.12.176.20/3010.12.176.21 – 10.12.176.2210.12.176.23
710.12.176.24/3010.12.176.25 – 10.12.176.2610.12.176.27
810.12.176.28/3010.12.176.29 – 10.12.176.3010.12.176.31
910.12.176.32/3010.12.176.33 – 10.12.176.3410.12.176.35
1010.12.176.36/3010.12.176.37 – 10.12.176.3810.12.176.39
1110.12.176.40/3010.12.176.41 – 10.12.176.4210.12.176.43
1210.12.176.44/3010.12.176.45 – 10.12.176.4610.12.176.47
1310.12.176.48/3010.12.176.49 – 10.12.176.5010.12.176.51
1410.12.176.52/3010.12.176.53 – 10.12.176.5410.12.176.55
1510.12.176.56/3010.12.176.57 – 10.12.176.5810.12.176.59
1610.12.176.60/3010.12.176.61 – 10.12.176.6210.12.176.63
1710.12.176.64/3010.12.176.65 – 10.12.176.6610.12.176.67
1810.12.176.68/3010.12.176.69 – 10.12.176.7010.12.176.71
1910.12.176.72/3010.12.176.73 – 10.12.176.7410.12.176.75
2010.12.176.76/3010.12.176.77 – 10.12.176.7810.12.176.79
2110.12.176.80/3010.12.176.81 – 10.12.176.8210.12.176.83
2210.12.176.84/3010.12.176.85 – 10.12.176.8610.12.176.87
2310.12.176.88/3010.12.176.89 – 10.12.176.9010.12.176.91
2410.12.176.92/3010.12.176.93 – 10.12.176.9410.12.176.95
2510.12.176.96/3010.12.176.97 – 10.12.176.9810.12.176.99
2610.12.176.100/3010.12.176.101 – 10.12.176.10210.12.176.103
2710.12.176.104/3010.12.176.105 – 10.12.176.10610.12.176.107
2810.12.176.108/3010.12.176.109 – 10.12.176.11010.12.176.111
2910.12.176.112/3010.12.176.113 – 10.12.176.11410.12.176.115
3010.12.176.116/3010.12.176.117 – 10.12.176.11810.12.176.119
3110.12.176.120/3010.12.176.121 – 10.12.176.12210.12.176.123
3210.12.176.124/3010.12.176.125 – 10.12.176.12610.12.176.127
3310.12.176.128/3010.12.176.129 – 10.12.176.13010.12.176.131
3410.12.176.132/3010.12.176.133 – 10.12.176.13410.12.176.135
3510.12.176.136/3010.12.176.137 – 10.12.176.13810.12.176.139
3610.12.176.140/3010.12.176.141 – 10.12.176.14210.12.176.143
3710.12.176.144/3010.12.176.145 – 10.12.176.14610.12.176.147
3810.12.176.148/3010.12.176.149 – 10.12.176.15010.12.176.151
3910.12.176.152/3010.12.176.153 – 10.12.176.15410.12.176.155
4010.12.176.156/3010.12.176.157 – 10.12.176.15810.12.176.159
4110.12.176.160/3010.12.176.161 – 10.12.176.16210.12.176.163
4210.12.176.164/3010.12.176.165 – 10.12.176.16610.12.176.167
4310.12.176.168/3010.12.176.169 – 10.12.176.17010.12.176.171
4410.12.176.172/3010.12.176.173 – 10.12.176.17410.12.176.175
4510.12.176.176/3010.12.176.177 – 10.12.176.17810.12.176.179
4610.12.176.180/3010.12.176.181 – 10.12.176.18210.12.176.183
4710.12.176.184/3010.12.176.185 – 10.12.176.18610.12.176.187
4810.12.176.188/3010.12.176.189 – 10.12.176.19010.12.176.191
4910.12.176.192/3010.12.176.193 – 10.12.176.19410.12.176.195
5010.12.176.196/3010.12.176.197 – 10.12.176.19810.12.176.199
5110.12.176.200/3010.12.176.201 – 10.12.176.20210.12.176.203
5210.12.176.204/3010.12.176.205 – 10.12.176.20610.12.176.207
5310.12.176.208/3010.12.176.209 – 10.12.176.21010.12.176.211
5410.12.176.212/3010.12.176.213 – 10.12.176.21410.12.176.215
5510.12.176.216/3010.12.176.217 – 10.12.176.21810.12.176.219
5610.12.176.220/3010.12.176.221 – 10.12.176.22210.12.176.223
5710.12.176.224/3010.12.176.225 – 10.12.176.22610.12.176.227
5810.12.176.228/3010.12.176.229 – 10.12.176.23010.12.176.231
5910.12.176.232/3010.12.176.233 – 10.12.176.23410.12.176.235
6010.12.176.236/3010.12.176.237 – 10.12.176.23810.12.176.239
6110.12.176.240/3010.12.176.241 – 10.12.176.24210.12.176.243
6210.12.176.244/3010.12.176.245 – 10.12.176.24610.12.176.247
6310.12.176.248/3010.12.176.249 – 10.12.176.25010.12.176.251
6410.12.176.252/3010.12.176.253 – 10.12.176.25410.12.176.255
6510.12.177.0/3010.12.177.1 – 10.12.177.210.12.177.3
6610.12.177.4/3010.12.177.5 – 10.12.177.610.12.177.7
6710.12.177.8/3010.12.177.9 – 10.12.177.1010.12.177.11
6810.12.177.12/3010.12.177.13 – 10.12.177.1410.12.177.15
6910.12.177.16/3010.12.177.17 – 10.12.177.1810.12.177.19
7010.12.177.20/3010.12.177.21 – 10.12.177.2210.12.177.23
7110.12.177.24/3010.12.177.25 – 10.12.177.2610.12.177.27
7210.12.177.28/3010.12.177.29 – 10.12.177.3010.12.177.31
7310.12.177.32/3010.12.177.33 – 10.12.177.3410.12.177.35
7410.12.177.36/3010.12.177.37 – 10.12.177.3810.12.177.39
7510.12.177.40/3010.12.177.41 – 10.12.177.4210.12.177.43
7610.12.177.44/3010.12.177.45 – 10.12.177.4610.12.177.47
7710.12.177.48/3010.12.177.49 – 10.12.177.5010.12.177.51
7810.12.177.52/3010.12.177.53 – 10.12.177.5410.12.177.55
7910.12.177.56/3010.12.177.57 – 10.12.177.5810.12.177.59
8010.12.177.60/3010.12.177.61 – 10.12.177.6210.12.177.63
8110.12.177.64/3010.12.177.65 – 10.12.177.6610.12.177.67
8210.12.177.68/3010.12.177.69 – 10.12.177.7010.12.177.71
8310.12.177.72/3010.12.177.73 – 10.12.177.7410.12.177.75
8410.12.177.76/3010.12.177.77 – 10.12.177.7810.12.177.79
8510.12.177.80/3010.12.177.81 – 10.12.177.8210.12.177.83
8610.12.177.84/3010.12.177.85 – 10.12.177.8610.12.177.87
8710.12.177.88/3010.12.177.89 – 10.12.177.9010.12.177.91
8810.12.177.92/3010.12.177.93 – 10.12.177.9410.12.177.95
8910.12.177.96/3010.12.177.97 – 10.12.177.9810.12.177.99
9010.12.177.100/3010.12.177.101 – 10.12.177.10210.12.177.103
9110.12.177.104/3010.12.177.105 – 10.12.177.10610.12.177.107
9210.12.177.108/3010.12.177.109 – 10.12.177.11010.12.177.111
9310.12.177.112/3010.12.177.113 – 10.12.177.11410.12.177.115
9410.12.177.116/3010.12.177.117 – 10.12.177.11810.12.177.119
9510.12.177.120/3010.12.177.121 – 10.12.177.12210.12.177.123
9610.12.177.124/3010.12.177.125 – 10.12.177.12610.12.177.127
9710.12.177.128/3010.12.177.129 – 10.12.177.13010.12.177.131
9810.12.177.132/3010.12.177.133 – 10.12.177.13410.12.177.135
9910.12.177.136/3010.12.177.137 – 10.12.177.13810.12.177.139
10010.12.177.140/3010.12.177.141 – 10.12.177.14210.12.177.143
10110.12.177.144/3010.12.177.145 – 10.12.177.14610.12.177.147
10210.12.177.148/3010.12.177.149 – 10.12.177.15010.12.177.151
10310.12.177.152/3010.12.177.153 – 10.12.177.15410.12.177.155
10410.12.177.156/3010.12.177.157 – 10.12.177.15810.12.177.159
10510.12.177.160/3010.12.177.161 – 10.12.177.16210.12.177.163
10610.12.177.164/3010.12.177.165 – 10.12.177.16610.12.177.167
10710.12.177.168/3010.12.177.169 – 10.12.177.17010.12.177.171
10810.12.177.172/3010.12.177.173 – 10.12.177.17410.12.177.175
10910.12.177.176/3010.12.177.177 – 10.12.177.17810.12.177.179
11010.12.177.180/3010.12.177.181 – 10.12.177.18210.12.177.183
11110.12.177.184/3010.12.177.185 – 10.12.177.18610.12.177.187
11210.12.177.188/3010.12.177.189 – 10.12.177.19010.12.177.191
11310.12.177.192/3010.12.177.193 – 10.12.177.19410.12.177.195
11410.12.177.196/3010.12.177.197 – 10.12.177.19810.12.177.199
11510.12.177.200/3010.12.177.201 – 10.12.177.20210.12.177.203
11610.12.177.204/3010.12.177.205 – 10.12.177.20610.12.177.207
11710.12.177.208/3010.12.177.209 – 10.12.177.21010.12.177.211
11810.12.177.212/3010.12.177.213 – 10.12.177.21410.12.177.215
11910.12.177.216/3010.12.177.217 – 10.12.177.21810.12.177.219
12010.12.177.220/3010.12.177.221 – 10.12.177.22210.12.177.223
12110.12.177.224/3010.12.177.225 – 10.12.177.22610.12.177.227
12210.12.177.228/3010.12.177.229 – 10.12.177.23010.12.177.231
12310.12.177.232/3010.12.177.233 – 10.12.177.23410.12.177.235
12410.12.177.236/3010.12.177.237 – 10.12.177.23810.12.177.239
12510.12.177.240/3010.12.177.241 – 10.12.177.24210.12.177.243
12610.12.177.244/3010.12.177.245 – 10.12.177.24610.12.177.247
12710.12.177.248/3010.12.177.249 – 10.12.177.25010.12.177.251
12810.12.177.252/3010.12.177.253 – 10.12.177.25410.12.177.255
12910.12.178.0/3010.12.178.1 – 10.12.178.210.12.178.3
13010.12.178.4/3010.12.178.5 – 10.12.178.610.12.178.7
13110.12.178.8/3010.12.178.9 – 10.12.178.1010.12.178.11
13210.12.178.12/3010.12.178.13 – 10.12.178.1410.12.178.15
13310.12.178.16/3010.12.178.17 – 10.12.178.1810.12.178.19
13410.12.178.20/3010.12.178.21 – 10.12.178.2210.12.178.23
13510.12.178.24/3010.12.178.25 – 10.12.178.2610.12.178.27
13610.12.178.28/3010.12.178.29 – 10.12.178.3010.12.178.31
13710.12.178.32/3010.12.178.33 – 10.12.178.3410.12.178.35
13810.12.178.36/3010.12.178.37 – 10.12.178.3810.12.178.39
13910.12.178.40/3010.12.178.41 – 10.12.178.4210.12.178.43
14010.12.178.44/3010.12.178.45 – 10.12.178.4610.12.178.47
14110.12.178.48/3010.12.178.49 – 10.12.178.5010.12.178.51
14210.12.178.52/3010.12.178.53 – 10.12.178.5410.12.178.55
14310.12.178.56/3010.12.178.57 – 10.12.178.5810.12.178.59
14410.12.178.60/3010.12.178.61 – 10.12.178.6210.12.178.63
14510.12.178.64/3010.12.178.65 – 10.12.178.6610.12.178.67
14610.12.178.68/3010.12.178.69 – 10.12.178.7010.12.178.71
14710.12.178.72/3010.12.178.73 – 10.12.178.7410.12.178.75
14810.12.178.76/3010.12.178.77 – 10.12.178.7810.12.178.79
14910.12.178.80/3010.12.178.81 – 10.12.178.8210.12.178.83
15010.12.178.84/3010.12.178.85 – 10.12.178.8610.12.178.87
15110.12.178.88/3010.12.178.89 – 10.12.178.9010.12.178.91
15210.12.178.92/3010.12.178.93 – 10.12.178.9410.12.178.95
15310.12.178.96/3010.12.178.97 – 10.12.178.9810.12.178.99
15410.12.178.100/3010.12.178.101 – 10.12.178.10210.12.178.103
15510.12.178.104/3010.12.178.105 – 10.12.178.10610.12.178.107
15610.12.178.108/3010.12.178.109 – 10.12.178.11010.12.178.111
15710.12.178.112/3010.12.178.113 – 10.12.178.11410.12.178.115
15810.12.178.116/3010.12.178.117 – 10.12.178.11810.12.178.119
15910.12.178.120/3010.12.178.121 – 10.12.178.12210.12.178.123
16010.12.178.124/3010.12.178.125 – 10.12.178.12610.12.178.127
16110.12.178.128/3010.12.178.129 – 10.12.178.13010.12.178.131
16210.12.178.132/3010.12.178.133 – 10.12.178.13410.12.178.135
16310.12.178.136/3010.12.178.137 – 10.12.178.13810.12.178.139
16410.12.178.140/3010.12.178.141 – 10.12.178.14210.12.178.143
16510.12.178.144/3010.12.178.145 – 10.12.178.14610.12.178.147
16610.12.178.148/3010.12.178.149 – 10.12.178.15010.12.178.151
16710.12.178.152/3010.12.178.153 – 10.12.178.15410.12.178.155
16810.12.178.156/3010.12.178.157 – 10.12.178.15810.12.178.159
16910.12.178.160/3010.12.178.161 – 10.12.178.16210.12.178.163
17010.12.178.164/3010.12.178.165 – 10.12.178.16610.12.178.167
17110.12.178.168/3010.12.178.169 – 10.12.178.17010.12.178.171
17210.12.178.172/3010.12.178.173 – 10.12.178.17410.12.178.175
17310.12.178.176/3010.12.178.177 – 10.12.178.17810.12.178.179
17410.12.178.180/3010.12.178.181 – 10.12.178.18210.12.178.183
17510.12.178.184/3010.12.178.185 – 10.12.178.18610.12.178.187
17610.12.178.188/3010.12.178.189 – 10.12.178.19010.12.178.191
17710.12.178.192/3010.12.178.193 – 10.12.178.19410.12.178.195
17810.12.178.196/3010.12.178.197 – 10.12.178.19810.12.178.199
17910.12.178.200/3010.12.178.201 – 10.12.178.20210.12.178.203
18010.12.178.204/3010.12.178.205 – 10.12.178.20610.12.178.207
18110.12.178.208/3010.12.178.209 – 10.12.178.21010.12.178.211
18210.12.178.212/3010.12.178.213 – 10.12.178.21410.12.178.215
18310.12.178.216/3010.12.178.217 – 10.12.178.21810.12.178.219
18410.12.178.220/3010.12.178.221 – 10.12.178.22210.12.178.223
18510.12.178.224/3010.12.178.225 – 10.12.178.22610.12.178.227
18610.12.178.228/3010.12.178.229 – 10.12.178.23010.12.178.231
18710.12.178.232/3010.12.178.233 – 10.12.178.23410.12.178.235
18810.12.178.236/3010.12.178.237 – 10.12.178.23810.12.178.239
18910.12.178.240/3010.12.178.241 – 10.12.178.24210.12.178.243
19010.12.178.244/3010.12.178.245 – 10.12.178.24610.12.178.247
19110.12.178.248/3010.12.178.249 – 10.12.178.25010.12.178.251
19210.12.178.252/3010.12.178.253 – 10.12.178.25410.12.178.255
19310.12.179.0/3010.12.179.1 – 10.12.179.210.12.179.3
19410.12.179.4/3010.12.179.5 – 10.12.179.610.12.179.7
19510.12.179.8/3010.12.179.9 – 10.12.179.1010.12.179.11
19610.12.179.12/3010.12.179.13 – 10.12.179.1410.12.179.15
19710.12.179.16/3010.12.179.17 – 10.12.179.1810.12.179.19
19810.12.179.20/3010.12.179.21 – 10.12.179.2210.12.179.23
19910.12.179.24/3010.12.179.25 – 10.12.179.2610.12.179.27
20010.12.179.28/3010.12.179.29 – 10.12.179.3010.12.179.31
20110.12.179.32/3010.12.179.33 – 10.12.179.3410.12.179.35
20210.12.179.36/3010.12.179.37 – 10.12.179.3810.12.179.39
20310.12.179.40/3010.12.179.41 – 10.12.179.4210.12.179.43
20410.12.179.44/3010.12.179.45 – 10.12.179.4610.12.179.47
20510.12.179.48/3010.12.179.49 – 10.12.179.5010.12.179.51
20610.12.179.52/3010.12.179.53 – 10.12.179.5410.12.179.55
20710.12.179.56/3010.12.179.57 – 10.12.179.5810.12.179.59
20810.12.179.60/3010.12.179.61 – 10.12.179.6210.12.179.63
20910.12.179.64/3010.12.179.65 – 10.12.179.6610.12.179.67
21010.12.179.68/3010.12.179.69 – 10.12.179.7010.12.179.71
21110.12.179.72/3010.12.179.73 – 10.12.179.7410.12.179.75
21210.12.179.76/3010.12.179.77 – 10.12.179.7810.12.179.79
21310.12.179.80/3010.12.179.81 – 10.12.179.8210.12.179.83
21410.12.179.84/3010.12.179.85 – 10.12.179.8610.12.179.87
21510.12.179.88/3010.12.179.89 – 10.12.179.9010.12.179.91
21610.12.179.92/3010.12.179.93 – 10.12.179.9410.12.179.95
21710.12.179.96/3010.12.179.97 – 10.12.179.9810.12.179.99
21810.12.179.100/3010.12.179.101 – 10.12.179.10210.12.179.103
21910.12.179.104/3010.12.179.105 – 10.12.179.10610.12.179.107
22010.12.179.108/3010.12.179.109 – 10.12.179.11010.12.179.111
22110.12.179.112/3010.12.179.113 – 10.12.179.11410.12.179.115
22210.12.179.116/3010.12.179.117 – 10.12.179.11810.12.179.119
22310.12.179.120/3010.12.179.121 – 10.12.179.12210.12.179.123
22410.12.179.124/3010.12.179.125 – 10.12.179.12610.12.179.127
22510.12.179.128/3010.12.179.129 – 10.12.179.13010.12.179.131
22610.12.179.132/3010.12.179.133 – 10.12.179.13410.12.179.135
22710.12.179.136/3010.12.179.137 – 10.12.179.13810.12.179.139
22810.12.179.140/3010.12.179.141 – 10.12.179.14210.12.179.143
22910.12.179.144/3010.12.179.145 – 10.12.179.14610.12.179.147
23010.12.179.148/3010.12.179.149 – 10.12.179.15010.12.179.151
23110.12.179.152/3010.12.179.153 – 10.12.179.15410.12.179.155
23210.12.179.156/3010.12.179.157 – 10.12.179.15810.12.179.159
23310.12.179.160/3010.12.179.161 – 10.12.179.16210.12.179.163
23410.12.179.164/3010.12.179.165 – 10.12.179.16610.12.179.167
23510.12.179.168/3010.12.179.169 – 10.12.179.17010.12.179.171
23610.12.179.172/3010.12.179.173 – 10.12.179.17410.12.179.175
23710.12.179.176/3010.12.179.177 – 10.12.179.17810.12.179.179
23810.12.179.180/3010.12.179.181 – 10.12.179.18210.12.179.183
23910.12.179.184/3010.12.179.185 – 10.12.179.18610.12.179.187
24010.12.179.188/3010.12.179.189 – 10.12.179.19010.12.179.191
24110.12.179.192/3010.12.179.193 – 10.12.179.19410.12.179.195
24210.12.179.196/3010.12.179.197 – 10.12.179.19810.12.179.199
24310.12.179.200/3010.12.179.201 – 10.12.179.20210.12.179.203
24410.12.179.204/3010.12.179.205 – 10.12.179.20610.12.179.207
24510.12.179.208/3010.12.179.209 – 10.12.179.21010.12.179.211
24610.12.179.212/3010.12.179.213 – 10.12.179.21410.12.179.215
24710.12.179.216/3010.12.179.217 – 10.12.179.21810.12.179.219
24810.12.179.220/3010.12.179.221 – 10.12.179.22210.12.179.223
24910.12.179.224/3010.12.179.225 – 10.12.179.22610.12.179.227
25010.12.179.228/3010.12.179.229 – 10.12.179.23010.12.179.231
25110.12.179.232/3010.12.179.233 – 10.12.179.23410.12.179.235
25210.12.179.236/3010.12.179.237 – 10.12.179.23810.12.179.239
25310.12.179.240/3010.12.179.241 – 10.12.179.24210.12.179.243
25410.12.179.244/3010.12.179.245 – 10.12.179.24610.12.179.247
25510.12.179.248/3010.12.179.249 – 10.12.179.25010.12.179.251
25610.12.179.252/3010.12.179.253 – 10.12.179.25410.12.179.255

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 →