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)10.6.112.0/21
network10.6.112.0/21
broadcast10.6.119.255
first host10.6.112.1
last host10.6.119.254
subnet mask255.255.248.0
wildcard0.0.7.255
addresses2,048
usable hosts2,046
classA
ipcalc 10.6.112.0/21
address00001010.00000110.01110000.00000000
subnet mask11111111.11111111.11111000.00000000
network00001010.00000110.01110000.00000000
broadcast00001010.00000110.01110111.11111111
green = network part, grey = host part
hex0x0a067000
decimal168194048
reverse dns0.112.6.10.in-addr.arpa
ipv4-mapped::ffff:a06:7000

/21 split into /30 · 512 subnets

close ×
#networkhost rangebroadcast
110.6.112.0/3010.6.112.1 – 10.6.112.210.6.112.3
210.6.112.4/3010.6.112.5 – 10.6.112.610.6.112.7
310.6.112.8/3010.6.112.9 – 10.6.112.1010.6.112.11
410.6.112.12/3010.6.112.13 – 10.6.112.1410.6.112.15
510.6.112.16/3010.6.112.17 – 10.6.112.1810.6.112.19
610.6.112.20/3010.6.112.21 – 10.6.112.2210.6.112.23
710.6.112.24/3010.6.112.25 – 10.6.112.2610.6.112.27
810.6.112.28/3010.6.112.29 – 10.6.112.3010.6.112.31
910.6.112.32/3010.6.112.33 – 10.6.112.3410.6.112.35
1010.6.112.36/3010.6.112.37 – 10.6.112.3810.6.112.39
1110.6.112.40/3010.6.112.41 – 10.6.112.4210.6.112.43
1210.6.112.44/3010.6.112.45 – 10.6.112.4610.6.112.47
1310.6.112.48/3010.6.112.49 – 10.6.112.5010.6.112.51
1410.6.112.52/3010.6.112.53 – 10.6.112.5410.6.112.55
1510.6.112.56/3010.6.112.57 – 10.6.112.5810.6.112.59
1610.6.112.60/3010.6.112.61 – 10.6.112.6210.6.112.63
1710.6.112.64/3010.6.112.65 – 10.6.112.6610.6.112.67
1810.6.112.68/3010.6.112.69 – 10.6.112.7010.6.112.71
1910.6.112.72/3010.6.112.73 – 10.6.112.7410.6.112.75
2010.6.112.76/3010.6.112.77 – 10.6.112.7810.6.112.79
2110.6.112.80/3010.6.112.81 – 10.6.112.8210.6.112.83
2210.6.112.84/3010.6.112.85 – 10.6.112.8610.6.112.87
2310.6.112.88/3010.6.112.89 – 10.6.112.9010.6.112.91
2410.6.112.92/3010.6.112.93 – 10.6.112.9410.6.112.95
2510.6.112.96/3010.6.112.97 – 10.6.112.9810.6.112.99
2610.6.112.100/3010.6.112.101 – 10.6.112.10210.6.112.103
2710.6.112.104/3010.6.112.105 – 10.6.112.10610.6.112.107
2810.6.112.108/3010.6.112.109 – 10.6.112.11010.6.112.111
2910.6.112.112/3010.6.112.113 – 10.6.112.11410.6.112.115
3010.6.112.116/3010.6.112.117 – 10.6.112.11810.6.112.119
3110.6.112.120/3010.6.112.121 – 10.6.112.12210.6.112.123
3210.6.112.124/3010.6.112.125 – 10.6.112.12610.6.112.127
3310.6.112.128/3010.6.112.129 – 10.6.112.13010.6.112.131
3410.6.112.132/3010.6.112.133 – 10.6.112.13410.6.112.135
3510.6.112.136/3010.6.112.137 – 10.6.112.13810.6.112.139
3610.6.112.140/3010.6.112.141 – 10.6.112.14210.6.112.143
3710.6.112.144/3010.6.112.145 – 10.6.112.14610.6.112.147
3810.6.112.148/3010.6.112.149 – 10.6.112.15010.6.112.151
3910.6.112.152/3010.6.112.153 – 10.6.112.15410.6.112.155
4010.6.112.156/3010.6.112.157 – 10.6.112.15810.6.112.159
4110.6.112.160/3010.6.112.161 – 10.6.112.16210.6.112.163
4210.6.112.164/3010.6.112.165 – 10.6.112.16610.6.112.167
4310.6.112.168/3010.6.112.169 – 10.6.112.17010.6.112.171
4410.6.112.172/3010.6.112.173 – 10.6.112.17410.6.112.175
4510.6.112.176/3010.6.112.177 – 10.6.112.17810.6.112.179
4610.6.112.180/3010.6.112.181 – 10.6.112.18210.6.112.183
4710.6.112.184/3010.6.112.185 – 10.6.112.18610.6.112.187
4810.6.112.188/3010.6.112.189 – 10.6.112.19010.6.112.191
4910.6.112.192/3010.6.112.193 – 10.6.112.19410.6.112.195
5010.6.112.196/3010.6.112.197 – 10.6.112.19810.6.112.199
5110.6.112.200/3010.6.112.201 – 10.6.112.20210.6.112.203
5210.6.112.204/3010.6.112.205 – 10.6.112.20610.6.112.207
5310.6.112.208/3010.6.112.209 – 10.6.112.21010.6.112.211
5410.6.112.212/3010.6.112.213 – 10.6.112.21410.6.112.215
5510.6.112.216/3010.6.112.217 – 10.6.112.21810.6.112.219
5610.6.112.220/3010.6.112.221 – 10.6.112.22210.6.112.223
5710.6.112.224/3010.6.112.225 – 10.6.112.22610.6.112.227
5810.6.112.228/3010.6.112.229 – 10.6.112.23010.6.112.231
5910.6.112.232/3010.6.112.233 – 10.6.112.23410.6.112.235
6010.6.112.236/3010.6.112.237 – 10.6.112.23810.6.112.239
6110.6.112.240/3010.6.112.241 – 10.6.112.24210.6.112.243
6210.6.112.244/3010.6.112.245 – 10.6.112.24610.6.112.247
6310.6.112.248/3010.6.112.249 – 10.6.112.25010.6.112.251
6410.6.112.252/3010.6.112.253 – 10.6.112.25410.6.112.255
6510.6.113.0/3010.6.113.1 – 10.6.113.210.6.113.3
6610.6.113.4/3010.6.113.5 – 10.6.113.610.6.113.7
6710.6.113.8/3010.6.113.9 – 10.6.113.1010.6.113.11
6810.6.113.12/3010.6.113.13 – 10.6.113.1410.6.113.15
6910.6.113.16/3010.6.113.17 – 10.6.113.1810.6.113.19
7010.6.113.20/3010.6.113.21 – 10.6.113.2210.6.113.23
7110.6.113.24/3010.6.113.25 – 10.6.113.2610.6.113.27
7210.6.113.28/3010.6.113.29 – 10.6.113.3010.6.113.31
7310.6.113.32/3010.6.113.33 – 10.6.113.3410.6.113.35
7410.6.113.36/3010.6.113.37 – 10.6.113.3810.6.113.39
7510.6.113.40/3010.6.113.41 – 10.6.113.4210.6.113.43
7610.6.113.44/3010.6.113.45 – 10.6.113.4610.6.113.47
7710.6.113.48/3010.6.113.49 – 10.6.113.5010.6.113.51
7810.6.113.52/3010.6.113.53 – 10.6.113.5410.6.113.55
7910.6.113.56/3010.6.113.57 – 10.6.113.5810.6.113.59
8010.6.113.60/3010.6.113.61 – 10.6.113.6210.6.113.63
8110.6.113.64/3010.6.113.65 – 10.6.113.6610.6.113.67
8210.6.113.68/3010.6.113.69 – 10.6.113.7010.6.113.71
8310.6.113.72/3010.6.113.73 – 10.6.113.7410.6.113.75
8410.6.113.76/3010.6.113.77 – 10.6.113.7810.6.113.79
8510.6.113.80/3010.6.113.81 – 10.6.113.8210.6.113.83
8610.6.113.84/3010.6.113.85 – 10.6.113.8610.6.113.87
8710.6.113.88/3010.6.113.89 – 10.6.113.9010.6.113.91
8810.6.113.92/3010.6.113.93 – 10.6.113.9410.6.113.95
8910.6.113.96/3010.6.113.97 – 10.6.113.9810.6.113.99
9010.6.113.100/3010.6.113.101 – 10.6.113.10210.6.113.103
9110.6.113.104/3010.6.113.105 – 10.6.113.10610.6.113.107
9210.6.113.108/3010.6.113.109 – 10.6.113.11010.6.113.111
9310.6.113.112/3010.6.113.113 – 10.6.113.11410.6.113.115
9410.6.113.116/3010.6.113.117 – 10.6.113.11810.6.113.119
9510.6.113.120/3010.6.113.121 – 10.6.113.12210.6.113.123
9610.6.113.124/3010.6.113.125 – 10.6.113.12610.6.113.127
9710.6.113.128/3010.6.113.129 – 10.6.113.13010.6.113.131
9810.6.113.132/3010.6.113.133 – 10.6.113.13410.6.113.135
9910.6.113.136/3010.6.113.137 – 10.6.113.13810.6.113.139
10010.6.113.140/3010.6.113.141 – 10.6.113.14210.6.113.143
10110.6.113.144/3010.6.113.145 – 10.6.113.14610.6.113.147
10210.6.113.148/3010.6.113.149 – 10.6.113.15010.6.113.151
10310.6.113.152/3010.6.113.153 – 10.6.113.15410.6.113.155
10410.6.113.156/3010.6.113.157 – 10.6.113.15810.6.113.159
10510.6.113.160/3010.6.113.161 – 10.6.113.16210.6.113.163
10610.6.113.164/3010.6.113.165 – 10.6.113.16610.6.113.167
10710.6.113.168/3010.6.113.169 – 10.6.113.17010.6.113.171
10810.6.113.172/3010.6.113.173 – 10.6.113.17410.6.113.175
10910.6.113.176/3010.6.113.177 – 10.6.113.17810.6.113.179
11010.6.113.180/3010.6.113.181 – 10.6.113.18210.6.113.183
11110.6.113.184/3010.6.113.185 – 10.6.113.18610.6.113.187
11210.6.113.188/3010.6.113.189 – 10.6.113.19010.6.113.191
11310.6.113.192/3010.6.113.193 – 10.6.113.19410.6.113.195
11410.6.113.196/3010.6.113.197 – 10.6.113.19810.6.113.199
11510.6.113.200/3010.6.113.201 – 10.6.113.20210.6.113.203
11610.6.113.204/3010.6.113.205 – 10.6.113.20610.6.113.207
11710.6.113.208/3010.6.113.209 – 10.6.113.21010.6.113.211
11810.6.113.212/3010.6.113.213 – 10.6.113.21410.6.113.215
11910.6.113.216/3010.6.113.217 – 10.6.113.21810.6.113.219
12010.6.113.220/3010.6.113.221 – 10.6.113.22210.6.113.223
12110.6.113.224/3010.6.113.225 – 10.6.113.22610.6.113.227
12210.6.113.228/3010.6.113.229 – 10.6.113.23010.6.113.231
12310.6.113.232/3010.6.113.233 – 10.6.113.23410.6.113.235
12410.6.113.236/3010.6.113.237 – 10.6.113.23810.6.113.239
12510.6.113.240/3010.6.113.241 – 10.6.113.24210.6.113.243
12610.6.113.244/3010.6.113.245 – 10.6.113.24610.6.113.247
12710.6.113.248/3010.6.113.249 – 10.6.113.25010.6.113.251
12810.6.113.252/3010.6.113.253 – 10.6.113.25410.6.113.255
12910.6.114.0/3010.6.114.1 – 10.6.114.210.6.114.3
13010.6.114.4/3010.6.114.5 – 10.6.114.610.6.114.7
13110.6.114.8/3010.6.114.9 – 10.6.114.1010.6.114.11
13210.6.114.12/3010.6.114.13 – 10.6.114.1410.6.114.15
13310.6.114.16/3010.6.114.17 – 10.6.114.1810.6.114.19
13410.6.114.20/3010.6.114.21 – 10.6.114.2210.6.114.23
13510.6.114.24/3010.6.114.25 – 10.6.114.2610.6.114.27
13610.6.114.28/3010.6.114.29 – 10.6.114.3010.6.114.31
13710.6.114.32/3010.6.114.33 – 10.6.114.3410.6.114.35
13810.6.114.36/3010.6.114.37 – 10.6.114.3810.6.114.39
13910.6.114.40/3010.6.114.41 – 10.6.114.4210.6.114.43
14010.6.114.44/3010.6.114.45 – 10.6.114.4610.6.114.47
14110.6.114.48/3010.6.114.49 – 10.6.114.5010.6.114.51
14210.6.114.52/3010.6.114.53 – 10.6.114.5410.6.114.55
14310.6.114.56/3010.6.114.57 – 10.6.114.5810.6.114.59
14410.6.114.60/3010.6.114.61 – 10.6.114.6210.6.114.63
14510.6.114.64/3010.6.114.65 – 10.6.114.6610.6.114.67
14610.6.114.68/3010.6.114.69 – 10.6.114.7010.6.114.71
14710.6.114.72/3010.6.114.73 – 10.6.114.7410.6.114.75
14810.6.114.76/3010.6.114.77 – 10.6.114.7810.6.114.79
14910.6.114.80/3010.6.114.81 – 10.6.114.8210.6.114.83
15010.6.114.84/3010.6.114.85 – 10.6.114.8610.6.114.87
15110.6.114.88/3010.6.114.89 – 10.6.114.9010.6.114.91
15210.6.114.92/3010.6.114.93 – 10.6.114.9410.6.114.95
15310.6.114.96/3010.6.114.97 – 10.6.114.9810.6.114.99
15410.6.114.100/3010.6.114.101 – 10.6.114.10210.6.114.103
15510.6.114.104/3010.6.114.105 – 10.6.114.10610.6.114.107
15610.6.114.108/3010.6.114.109 – 10.6.114.11010.6.114.111
15710.6.114.112/3010.6.114.113 – 10.6.114.11410.6.114.115
15810.6.114.116/3010.6.114.117 – 10.6.114.11810.6.114.119
15910.6.114.120/3010.6.114.121 – 10.6.114.12210.6.114.123
16010.6.114.124/3010.6.114.125 – 10.6.114.12610.6.114.127
16110.6.114.128/3010.6.114.129 – 10.6.114.13010.6.114.131
16210.6.114.132/3010.6.114.133 – 10.6.114.13410.6.114.135
16310.6.114.136/3010.6.114.137 – 10.6.114.13810.6.114.139
16410.6.114.140/3010.6.114.141 – 10.6.114.14210.6.114.143
16510.6.114.144/3010.6.114.145 – 10.6.114.14610.6.114.147
16610.6.114.148/3010.6.114.149 – 10.6.114.15010.6.114.151
16710.6.114.152/3010.6.114.153 – 10.6.114.15410.6.114.155
16810.6.114.156/3010.6.114.157 – 10.6.114.15810.6.114.159
16910.6.114.160/3010.6.114.161 – 10.6.114.16210.6.114.163
17010.6.114.164/3010.6.114.165 – 10.6.114.16610.6.114.167
17110.6.114.168/3010.6.114.169 – 10.6.114.17010.6.114.171
17210.6.114.172/3010.6.114.173 – 10.6.114.17410.6.114.175
17310.6.114.176/3010.6.114.177 – 10.6.114.17810.6.114.179
17410.6.114.180/3010.6.114.181 – 10.6.114.18210.6.114.183
17510.6.114.184/3010.6.114.185 – 10.6.114.18610.6.114.187
17610.6.114.188/3010.6.114.189 – 10.6.114.19010.6.114.191
17710.6.114.192/3010.6.114.193 – 10.6.114.19410.6.114.195
17810.6.114.196/3010.6.114.197 – 10.6.114.19810.6.114.199
17910.6.114.200/3010.6.114.201 – 10.6.114.20210.6.114.203
18010.6.114.204/3010.6.114.205 – 10.6.114.20610.6.114.207
18110.6.114.208/3010.6.114.209 – 10.6.114.21010.6.114.211
18210.6.114.212/3010.6.114.213 – 10.6.114.21410.6.114.215
18310.6.114.216/3010.6.114.217 – 10.6.114.21810.6.114.219
18410.6.114.220/3010.6.114.221 – 10.6.114.22210.6.114.223
18510.6.114.224/3010.6.114.225 – 10.6.114.22610.6.114.227
18610.6.114.228/3010.6.114.229 – 10.6.114.23010.6.114.231
18710.6.114.232/3010.6.114.233 – 10.6.114.23410.6.114.235
18810.6.114.236/3010.6.114.237 – 10.6.114.23810.6.114.239
18910.6.114.240/3010.6.114.241 – 10.6.114.24210.6.114.243
19010.6.114.244/3010.6.114.245 – 10.6.114.24610.6.114.247
19110.6.114.248/3010.6.114.249 – 10.6.114.25010.6.114.251
19210.6.114.252/3010.6.114.253 – 10.6.114.25410.6.114.255
19310.6.115.0/3010.6.115.1 – 10.6.115.210.6.115.3
19410.6.115.4/3010.6.115.5 – 10.6.115.610.6.115.7
19510.6.115.8/3010.6.115.9 – 10.6.115.1010.6.115.11
19610.6.115.12/3010.6.115.13 – 10.6.115.1410.6.115.15
19710.6.115.16/3010.6.115.17 – 10.6.115.1810.6.115.19
19810.6.115.20/3010.6.115.21 – 10.6.115.2210.6.115.23
19910.6.115.24/3010.6.115.25 – 10.6.115.2610.6.115.27
20010.6.115.28/3010.6.115.29 – 10.6.115.3010.6.115.31
20110.6.115.32/3010.6.115.33 – 10.6.115.3410.6.115.35
20210.6.115.36/3010.6.115.37 – 10.6.115.3810.6.115.39
20310.6.115.40/3010.6.115.41 – 10.6.115.4210.6.115.43
20410.6.115.44/3010.6.115.45 – 10.6.115.4610.6.115.47
20510.6.115.48/3010.6.115.49 – 10.6.115.5010.6.115.51
20610.6.115.52/3010.6.115.53 – 10.6.115.5410.6.115.55
20710.6.115.56/3010.6.115.57 – 10.6.115.5810.6.115.59
20810.6.115.60/3010.6.115.61 – 10.6.115.6210.6.115.63
20910.6.115.64/3010.6.115.65 – 10.6.115.6610.6.115.67
21010.6.115.68/3010.6.115.69 – 10.6.115.7010.6.115.71
21110.6.115.72/3010.6.115.73 – 10.6.115.7410.6.115.75
21210.6.115.76/3010.6.115.77 – 10.6.115.7810.6.115.79
21310.6.115.80/3010.6.115.81 – 10.6.115.8210.6.115.83
21410.6.115.84/3010.6.115.85 – 10.6.115.8610.6.115.87
21510.6.115.88/3010.6.115.89 – 10.6.115.9010.6.115.91
21610.6.115.92/3010.6.115.93 – 10.6.115.9410.6.115.95
21710.6.115.96/3010.6.115.97 – 10.6.115.9810.6.115.99
21810.6.115.100/3010.6.115.101 – 10.6.115.10210.6.115.103
21910.6.115.104/3010.6.115.105 – 10.6.115.10610.6.115.107
22010.6.115.108/3010.6.115.109 – 10.6.115.11010.6.115.111
22110.6.115.112/3010.6.115.113 – 10.6.115.11410.6.115.115
22210.6.115.116/3010.6.115.117 – 10.6.115.11810.6.115.119
22310.6.115.120/3010.6.115.121 – 10.6.115.12210.6.115.123
22410.6.115.124/3010.6.115.125 – 10.6.115.12610.6.115.127
22510.6.115.128/3010.6.115.129 – 10.6.115.13010.6.115.131
22610.6.115.132/3010.6.115.133 – 10.6.115.13410.6.115.135
22710.6.115.136/3010.6.115.137 – 10.6.115.13810.6.115.139
22810.6.115.140/3010.6.115.141 – 10.6.115.14210.6.115.143
22910.6.115.144/3010.6.115.145 – 10.6.115.14610.6.115.147
23010.6.115.148/3010.6.115.149 – 10.6.115.15010.6.115.151
23110.6.115.152/3010.6.115.153 – 10.6.115.15410.6.115.155
23210.6.115.156/3010.6.115.157 – 10.6.115.15810.6.115.159
23310.6.115.160/3010.6.115.161 – 10.6.115.16210.6.115.163
23410.6.115.164/3010.6.115.165 – 10.6.115.16610.6.115.167
23510.6.115.168/3010.6.115.169 – 10.6.115.17010.6.115.171
23610.6.115.172/3010.6.115.173 – 10.6.115.17410.6.115.175
23710.6.115.176/3010.6.115.177 – 10.6.115.17810.6.115.179
23810.6.115.180/3010.6.115.181 – 10.6.115.18210.6.115.183
23910.6.115.184/3010.6.115.185 – 10.6.115.18610.6.115.187
24010.6.115.188/3010.6.115.189 – 10.6.115.19010.6.115.191
24110.6.115.192/3010.6.115.193 – 10.6.115.19410.6.115.195
24210.6.115.196/3010.6.115.197 – 10.6.115.19810.6.115.199
24310.6.115.200/3010.6.115.201 – 10.6.115.20210.6.115.203
24410.6.115.204/3010.6.115.205 – 10.6.115.20610.6.115.207
24510.6.115.208/3010.6.115.209 – 10.6.115.21010.6.115.211
24610.6.115.212/3010.6.115.213 – 10.6.115.21410.6.115.215
24710.6.115.216/3010.6.115.217 – 10.6.115.21810.6.115.219
24810.6.115.220/3010.6.115.221 – 10.6.115.22210.6.115.223
24910.6.115.224/3010.6.115.225 – 10.6.115.22610.6.115.227
25010.6.115.228/3010.6.115.229 – 10.6.115.23010.6.115.231
25110.6.115.232/3010.6.115.233 – 10.6.115.23410.6.115.235
25210.6.115.236/3010.6.115.237 – 10.6.115.23810.6.115.239
25310.6.115.240/3010.6.115.241 – 10.6.115.24210.6.115.243
25410.6.115.244/3010.6.115.245 – 10.6.115.24610.6.115.247
25510.6.115.248/3010.6.115.249 – 10.6.115.25010.6.115.251
25610.6.115.252/3010.6.115.253 – 10.6.115.25410.6.115.255

showing 256 of 512

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 →