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)10.6.48.0/20
network10.6.48.0/20
broadcast10.6.63.255
first host10.6.48.1
last host10.6.63.254
subnet mask255.255.240.0
wildcard0.0.15.255
addresses4,096
usable hosts4,094
classA
ipcalc 10.6.48.0/20
address00001010.00000110.00110000.00000000
subnet mask11111111.11111111.11110000.00000000
network00001010.00000110.00110000.00000000
broadcast00001010.00000110.00111111.11111111
green = network part, grey = host part
hex0x0a063000
decimal168177664
reverse dns0.48.6.10.in-addr.arpa
ipv4-mapped::ffff:a06:3000

/20 split into /31 · 2,048 subnets

close ×
#networkhost rangebroadcast
110.6.48.0/3110.6.48.0 – 10.6.48.110.6.48.1
210.6.48.2/3110.6.48.2 – 10.6.48.310.6.48.3
310.6.48.4/3110.6.48.4 – 10.6.48.510.6.48.5
410.6.48.6/3110.6.48.6 – 10.6.48.710.6.48.7
510.6.48.8/3110.6.48.8 – 10.6.48.910.6.48.9
610.6.48.10/3110.6.48.10 – 10.6.48.1110.6.48.11
710.6.48.12/3110.6.48.12 – 10.6.48.1310.6.48.13
810.6.48.14/3110.6.48.14 – 10.6.48.1510.6.48.15
910.6.48.16/3110.6.48.16 – 10.6.48.1710.6.48.17
1010.6.48.18/3110.6.48.18 – 10.6.48.1910.6.48.19
1110.6.48.20/3110.6.48.20 – 10.6.48.2110.6.48.21
1210.6.48.22/3110.6.48.22 – 10.6.48.2310.6.48.23
1310.6.48.24/3110.6.48.24 – 10.6.48.2510.6.48.25
1410.6.48.26/3110.6.48.26 – 10.6.48.2710.6.48.27
1510.6.48.28/3110.6.48.28 – 10.6.48.2910.6.48.29
1610.6.48.30/3110.6.48.30 – 10.6.48.3110.6.48.31
1710.6.48.32/3110.6.48.32 – 10.6.48.3310.6.48.33
1810.6.48.34/3110.6.48.34 – 10.6.48.3510.6.48.35
1910.6.48.36/3110.6.48.36 – 10.6.48.3710.6.48.37
2010.6.48.38/3110.6.48.38 – 10.6.48.3910.6.48.39
2110.6.48.40/3110.6.48.40 – 10.6.48.4110.6.48.41
2210.6.48.42/3110.6.48.42 – 10.6.48.4310.6.48.43
2310.6.48.44/3110.6.48.44 – 10.6.48.4510.6.48.45
2410.6.48.46/3110.6.48.46 – 10.6.48.4710.6.48.47
2510.6.48.48/3110.6.48.48 – 10.6.48.4910.6.48.49
2610.6.48.50/3110.6.48.50 – 10.6.48.5110.6.48.51
2710.6.48.52/3110.6.48.52 – 10.6.48.5310.6.48.53
2810.6.48.54/3110.6.48.54 – 10.6.48.5510.6.48.55
2910.6.48.56/3110.6.48.56 – 10.6.48.5710.6.48.57
3010.6.48.58/3110.6.48.58 – 10.6.48.5910.6.48.59
3110.6.48.60/3110.6.48.60 – 10.6.48.6110.6.48.61
3210.6.48.62/3110.6.48.62 – 10.6.48.6310.6.48.63
3310.6.48.64/3110.6.48.64 – 10.6.48.6510.6.48.65
3410.6.48.66/3110.6.48.66 – 10.6.48.6710.6.48.67
3510.6.48.68/3110.6.48.68 – 10.6.48.6910.6.48.69
3610.6.48.70/3110.6.48.70 – 10.6.48.7110.6.48.71
3710.6.48.72/3110.6.48.72 – 10.6.48.7310.6.48.73
3810.6.48.74/3110.6.48.74 – 10.6.48.7510.6.48.75
3910.6.48.76/3110.6.48.76 – 10.6.48.7710.6.48.77
4010.6.48.78/3110.6.48.78 – 10.6.48.7910.6.48.79
4110.6.48.80/3110.6.48.80 – 10.6.48.8110.6.48.81
4210.6.48.82/3110.6.48.82 – 10.6.48.8310.6.48.83
4310.6.48.84/3110.6.48.84 – 10.6.48.8510.6.48.85
4410.6.48.86/3110.6.48.86 – 10.6.48.8710.6.48.87
4510.6.48.88/3110.6.48.88 – 10.6.48.8910.6.48.89
4610.6.48.90/3110.6.48.90 – 10.6.48.9110.6.48.91
4710.6.48.92/3110.6.48.92 – 10.6.48.9310.6.48.93
4810.6.48.94/3110.6.48.94 – 10.6.48.9510.6.48.95
4910.6.48.96/3110.6.48.96 – 10.6.48.9710.6.48.97
5010.6.48.98/3110.6.48.98 – 10.6.48.9910.6.48.99
5110.6.48.100/3110.6.48.100 – 10.6.48.10110.6.48.101
5210.6.48.102/3110.6.48.102 – 10.6.48.10310.6.48.103
5310.6.48.104/3110.6.48.104 – 10.6.48.10510.6.48.105
5410.6.48.106/3110.6.48.106 – 10.6.48.10710.6.48.107
5510.6.48.108/3110.6.48.108 – 10.6.48.10910.6.48.109
5610.6.48.110/3110.6.48.110 – 10.6.48.11110.6.48.111
5710.6.48.112/3110.6.48.112 – 10.6.48.11310.6.48.113
5810.6.48.114/3110.6.48.114 – 10.6.48.11510.6.48.115
5910.6.48.116/3110.6.48.116 – 10.6.48.11710.6.48.117
6010.6.48.118/3110.6.48.118 – 10.6.48.11910.6.48.119
6110.6.48.120/3110.6.48.120 – 10.6.48.12110.6.48.121
6210.6.48.122/3110.6.48.122 – 10.6.48.12310.6.48.123
6310.6.48.124/3110.6.48.124 – 10.6.48.12510.6.48.125
6410.6.48.126/3110.6.48.126 – 10.6.48.12710.6.48.127
6510.6.48.128/3110.6.48.128 – 10.6.48.12910.6.48.129
6610.6.48.130/3110.6.48.130 – 10.6.48.13110.6.48.131
6710.6.48.132/3110.6.48.132 – 10.6.48.13310.6.48.133
6810.6.48.134/3110.6.48.134 – 10.6.48.13510.6.48.135
6910.6.48.136/3110.6.48.136 – 10.6.48.13710.6.48.137
7010.6.48.138/3110.6.48.138 – 10.6.48.13910.6.48.139
7110.6.48.140/3110.6.48.140 – 10.6.48.14110.6.48.141
7210.6.48.142/3110.6.48.142 – 10.6.48.14310.6.48.143
7310.6.48.144/3110.6.48.144 – 10.6.48.14510.6.48.145
7410.6.48.146/3110.6.48.146 – 10.6.48.14710.6.48.147
7510.6.48.148/3110.6.48.148 – 10.6.48.14910.6.48.149
7610.6.48.150/3110.6.48.150 – 10.6.48.15110.6.48.151
7710.6.48.152/3110.6.48.152 – 10.6.48.15310.6.48.153
7810.6.48.154/3110.6.48.154 – 10.6.48.15510.6.48.155
7910.6.48.156/3110.6.48.156 – 10.6.48.15710.6.48.157
8010.6.48.158/3110.6.48.158 – 10.6.48.15910.6.48.159
8110.6.48.160/3110.6.48.160 – 10.6.48.16110.6.48.161
8210.6.48.162/3110.6.48.162 – 10.6.48.16310.6.48.163
8310.6.48.164/3110.6.48.164 – 10.6.48.16510.6.48.165
8410.6.48.166/3110.6.48.166 – 10.6.48.16710.6.48.167
8510.6.48.168/3110.6.48.168 – 10.6.48.16910.6.48.169
8610.6.48.170/3110.6.48.170 – 10.6.48.17110.6.48.171
8710.6.48.172/3110.6.48.172 – 10.6.48.17310.6.48.173
8810.6.48.174/3110.6.48.174 – 10.6.48.17510.6.48.175
8910.6.48.176/3110.6.48.176 – 10.6.48.17710.6.48.177
9010.6.48.178/3110.6.48.178 – 10.6.48.17910.6.48.179
9110.6.48.180/3110.6.48.180 – 10.6.48.18110.6.48.181
9210.6.48.182/3110.6.48.182 – 10.6.48.18310.6.48.183
9310.6.48.184/3110.6.48.184 – 10.6.48.18510.6.48.185
9410.6.48.186/3110.6.48.186 – 10.6.48.18710.6.48.187
9510.6.48.188/3110.6.48.188 – 10.6.48.18910.6.48.189
9610.6.48.190/3110.6.48.190 – 10.6.48.19110.6.48.191
9710.6.48.192/3110.6.48.192 – 10.6.48.19310.6.48.193
9810.6.48.194/3110.6.48.194 – 10.6.48.19510.6.48.195
9910.6.48.196/3110.6.48.196 – 10.6.48.19710.6.48.197
10010.6.48.198/3110.6.48.198 – 10.6.48.19910.6.48.199
10110.6.48.200/3110.6.48.200 – 10.6.48.20110.6.48.201
10210.6.48.202/3110.6.48.202 – 10.6.48.20310.6.48.203
10310.6.48.204/3110.6.48.204 – 10.6.48.20510.6.48.205
10410.6.48.206/3110.6.48.206 – 10.6.48.20710.6.48.207
10510.6.48.208/3110.6.48.208 – 10.6.48.20910.6.48.209
10610.6.48.210/3110.6.48.210 – 10.6.48.21110.6.48.211
10710.6.48.212/3110.6.48.212 – 10.6.48.21310.6.48.213
10810.6.48.214/3110.6.48.214 – 10.6.48.21510.6.48.215
10910.6.48.216/3110.6.48.216 – 10.6.48.21710.6.48.217
11010.6.48.218/3110.6.48.218 – 10.6.48.21910.6.48.219
11110.6.48.220/3110.6.48.220 – 10.6.48.22110.6.48.221
11210.6.48.222/3110.6.48.222 – 10.6.48.22310.6.48.223
11310.6.48.224/3110.6.48.224 – 10.6.48.22510.6.48.225
11410.6.48.226/3110.6.48.226 – 10.6.48.22710.6.48.227
11510.6.48.228/3110.6.48.228 – 10.6.48.22910.6.48.229
11610.6.48.230/3110.6.48.230 – 10.6.48.23110.6.48.231
11710.6.48.232/3110.6.48.232 – 10.6.48.23310.6.48.233
11810.6.48.234/3110.6.48.234 – 10.6.48.23510.6.48.235
11910.6.48.236/3110.6.48.236 – 10.6.48.23710.6.48.237
12010.6.48.238/3110.6.48.238 – 10.6.48.23910.6.48.239
12110.6.48.240/3110.6.48.240 – 10.6.48.24110.6.48.241
12210.6.48.242/3110.6.48.242 – 10.6.48.24310.6.48.243
12310.6.48.244/3110.6.48.244 – 10.6.48.24510.6.48.245
12410.6.48.246/3110.6.48.246 – 10.6.48.24710.6.48.247
12510.6.48.248/3110.6.48.248 – 10.6.48.24910.6.48.249
12610.6.48.250/3110.6.48.250 – 10.6.48.25110.6.48.251
12710.6.48.252/3110.6.48.252 – 10.6.48.25310.6.48.253
12810.6.48.254/3110.6.48.254 – 10.6.48.25510.6.48.255
12910.6.49.0/3110.6.49.0 – 10.6.49.110.6.49.1
13010.6.49.2/3110.6.49.2 – 10.6.49.310.6.49.3
13110.6.49.4/3110.6.49.4 – 10.6.49.510.6.49.5
13210.6.49.6/3110.6.49.6 – 10.6.49.710.6.49.7
13310.6.49.8/3110.6.49.8 – 10.6.49.910.6.49.9
13410.6.49.10/3110.6.49.10 – 10.6.49.1110.6.49.11
13510.6.49.12/3110.6.49.12 – 10.6.49.1310.6.49.13
13610.6.49.14/3110.6.49.14 – 10.6.49.1510.6.49.15
13710.6.49.16/3110.6.49.16 – 10.6.49.1710.6.49.17
13810.6.49.18/3110.6.49.18 – 10.6.49.1910.6.49.19
13910.6.49.20/3110.6.49.20 – 10.6.49.2110.6.49.21
14010.6.49.22/3110.6.49.22 – 10.6.49.2310.6.49.23
14110.6.49.24/3110.6.49.24 – 10.6.49.2510.6.49.25
14210.6.49.26/3110.6.49.26 – 10.6.49.2710.6.49.27
14310.6.49.28/3110.6.49.28 – 10.6.49.2910.6.49.29
14410.6.49.30/3110.6.49.30 – 10.6.49.3110.6.49.31
14510.6.49.32/3110.6.49.32 – 10.6.49.3310.6.49.33
14610.6.49.34/3110.6.49.34 – 10.6.49.3510.6.49.35
14710.6.49.36/3110.6.49.36 – 10.6.49.3710.6.49.37
14810.6.49.38/3110.6.49.38 – 10.6.49.3910.6.49.39
14910.6.49.40/3110.6.49.40 – 10.6.49.4110.6.49.41
15010.6.49.42/3110.6.49.42 – 10.6.49.4310.6.49.43
15110.6.49.44/3110.6.49.44 – 10.6.49.4510.6.49.45
15210.6.49.46/3110.6.49.46 – 10.6.49.4710.6.49.47
15310.6.49.48/3110.6.49.48 – 10.6.49.4910.6.49.49
15410.6.49.50/3110.6.49.50 – 10.6.49.5110.6.49.51
15510.6.49.52/3110.6.49.52 – 10.6.49.5310.6.49.53
15610.6.49.54/3110.6.49.54 – 10.6.49.5510.6.49.55
15710.6.49.56/3110.6.49.56 – 10.6.49.5710.6.49.57
15810.6.49.58/3110.6.49.58 – 10.6.49.5910.6.49.59
15910.6.49.60/3110.6.49.60 – 10.6.49.6110.6.49.61
16010.6.49.62/3110.6.49.62 – 10.6.49.6310.6.49.63
16110.6.49.64/3110.6.49.64 – 10.6.49.6510.6.49.65
16210.6.49.66/3110.6.49.66 – 10.6.49.6710.6.49.67
16310.6.49.68/3110.6.49.68 – 10.6.49.6910.6.49.69
16410.6.49.70/3110.6.49.70 – 10.6.49.7110.6.49.71
16510.6.49.72/3110.6.49.72 – 10.6.49.7310.6.49.73
16610.6.49.74/3110.6.49.74 – 10.6.49.7510.6.49.75
16710.6.49.76/3110.6.49.76 – 10.6.49.7710.6.49.77
16810.6.49.78/3110.6.49.78 – 10.6.49.7910.6.49.79
16910.6.49.80/3110.6.49.80 – 10.6.49.8110.6.49.81
17010.6.49.82/3110.6.49.82 – 10.6.49.8310.6.49.83
17110.6.49.84/3110.6.49.84 – 10.6.49.8510.6.49.85
17210.6.49.86/3110.6.49.86 – 10.6.49.8710.6.49.87
17310.6.49.88/3110.6.49.88 – 10.6.49.8910.6.49.89
17410.6.49.90/3110.6.49.90 – 10.6.49.9110.6.49.91
17510.6.49.92/3110.6.49.92 – 10.6.49.9310.6.49.93
17610.6.49.94/3110.6.49.94 – 10.6.49.9510.6.49.95
17710.6.49.96/3110.6.49.96 – 10.6.49.9710.6.49.97
17810.6.49.98/3110.6.49.98 – 10.6.49.9910.6.49.99
17910.6.49.100/3110.6.49.100 – 10.6.49.10110.6.49.101
18010.6.49.102/3110.6.49.102 – 10.6.49.10310.6.49.103
18110.6.49.104/3110.6.49.104 – 10.6.49.10510.6.49.105
18210.6.49.106/3110.6.49.106 – 10.6.49.10710.6.49.107
18310.6.49.108/3110.6.49.108 – 10.6.49.10910.6.49.109
18410.6.49.110/3110.6.49.110 – 10.6.49.11110.6.49.111
18510.6.49.112/3110.6.49.112 – 10.6.49.11310.6.49.113
18610.6.49.114/3110.6.49.114 – 10.6.49.11510.6.49.115
18710.6.49.116/3110.6.49.116 – 10.6.49.11710.6.49.117
18810.6.49.118/3110.6.49.118 – 10.6.49.11910.6.49.119
18910.6.49.120/3110.6.49.120 – 10.6.49.12110.6.49.121
19010.6.49.122/3110.6.49.122 – 10.6.49.12310.6.49.123
19110.6.49.124/3110.6.49.124 – 10.6.49.12510.6.49.125
19210.6.49.126/3110.6.49.126 – 10.6.49.12710.6.49.127
19310.6.49.128/3110.6.49.128 – 10.6.49.12910.6.49.129
19410.6.49.130/3110.6.49.130 – 10.6.49.13110.6.49.131
19510.6.49.132/3110.6.49.132 – 10.6.49.13310.6.49.133
19610.6.49.134/3110.6.49.134 – 10.6.49.13510.6.49.135
19710.6.49.136/3110.6.49.136 – 10.6.49.13710.6.49.137
19810.6.49.138/3110.6.49.138 – 10.6.49.13910.6.49.139
19910.6.49.140/3110.6.49.140 – 10.6.49.14110.6.49.141
20010.6.49.142/3110.6.49.142 – 10.6.49.14310.6.49.143
20110.6.49.144/3110.6.49.144 – 10.6.49.14510.6.49.145
20210.6.49.146/3110.6.49.146 – 10.6.49.14710.6.49.147
20310.6.49.148/3110.6.49.148 – 10.6.49.14910.6.49.149
20410.6.49.150/3110.6.49.150 – 10.6.49.15110.6.49.151
20510.6.49.152/3110.6.49.152 – 10.6.49.15310.6.49.153
20610.6.49.154/3110.6.49.154 – 10.6.49.15510.6.49.155
20710.6.49.156/3110.6.49.156 – 10.6.49.15710.6.49.157
20810.6.49.158/3110.6.49.158 – 10.6.49.15910.6.49.159
20910.6.49.160/3110.6.49.160 – 10.6.49.16110.6.49.161
21010.6.49.162/3110.6.49.162 – 10.6.49.16310.6.49.163
21110.6.49.164/3110.6.49.164 – 10.6.49.16510.6.49.165
21210.6.49.166/3110.6.49.166 – 10.6.49.16710.6.49.167
21310.6.49.168/3110.6.49.168 – 10.6.49.16910.6.49.169
21410.6.49.170/3110.6.49.170 – 10.6.49.17110.6.49.171
21510.6.49.172/3110.6.49.172 – 10.6.49.17310.6.49.173
21610.6.49.174/3110.6.49.174 – 10.6.49.17510.6.49.175
21710.6.49.176/3110.6.49.176 – 10.6.49.17710.6.49.177
21810.6.49.178/3110.6.49.178 – 10.6.49.17910.6.49.179
21910.6.49.180/3110.6.49.180 – 10.6.49.18110.6.49.181
22010.6.49.182/3110.6.49.182 – 10.6.49.18310.6.49.183
22110.6.49.184/3110.6.49.184 – 10.6.49.18510.6.49.185
22210.6.49.186/3110.6.49.186 – 10.6.49.18710.6.49.187
22310.6.49.188/3110.6.49.188 – 10.6.49.18910.6.49.189
22410.6.49.190/3110.6.49.190 – 10.6.49.19110.6.49.191
22510.6.49.192/3110.6.49.192 – 10.6.49.19310.6.49.193
22610.6.49.194/3110.6.49.194 – 10.6.49.19510.6.49.195
22710.6.49.196/3110.6.49.196 – 10.6.49.19710.6.49.197
22810.6.49.198/3110.6.49.198 – 10.6.49.19910.6.49.199
22910.6.49.200/3110.6.49.200 – 10.6.49.20110.6.49.201
23010.6.49.202/3110.6.49.202 – 10.6.49.20310.6.49.203
23110.6.49.204/3110.6.49.204 – 10.6.49.20510.6.49.205
23210.6.49.206/3110.6.49.206 – 10.6.49.20710.6.49.207
23310.6.49.208/3110.6.49.208 – 10.6.49.20910.6.49.209
23410.6.49.210/3110.6.49.210 – 10.6.49.21110.6.49.211
23510.6.49.212/3110.6.49.212 – 10.6.49.21310.6.49.213
23610.6.49.214/3110.6.49.214 – 10.6.49.21510.6.49.215
23710.6.49.216/3110.6.49.216 – 10.6.49.21710.6.49.217
23810.6.49.218/3110.6.49.218 – 10.6.49.21910.6.49.219
23910.6.49.220/3110.6.49.220 – 10.6.49.22110.6.49.221
24010.6.49.222/3110.6.49.222 – 10.6.49.22310.6.49.223
24110.6.49.224/3110.6.49.224 – 10.6.49.22510.6.49.225
24210.6.49.226/3110.6.49.226 – 10.6.49.22710.6.49.227
24310.6.49.228/3110.6.49.228 – 10.6.49.22910.6.49.229
24410.6.49.230/3110.6.49.230 – 10.6.49.23110.6.49.231
24510.6.49.232/3110.6.49.232 – 10.6.49.23310.6.49.233
24610.6.49.234/3110.6.49.234 – 10.6.49.23510.6.49.235
24710.6.49.236/3110.6.49.236 – 10.6.49.23710.6.49.237
24810.6.49.238/3110.6.49.238 – 10.6.49.23910.6.49.239
24910.6.49.240/3110.6.49.240 – 10.6.49.24110.6.49.241
25010.6.49.242/3110.6.49.242 – 10.6.49.24310.6.49.243
25110.6.49.244/3110.6.49.244 – 10.6.49.24510.6.49.245
25210.6.49.246/3110.6.49.246 – 10.6.49.24710.6.49.247
25310.6.49.248/3110.6.49.248 – 10.6.49.24910.6.49.249
25410.6.49.250/3110.6.49.250 – 10.6.49.25110.6.49.251
25510.6.49.252/3110.6.49.252 – 10.6.49.25310.6.49.253
25610.6.49.254/3110.6.49.254 – 10.6.49.25510.6.49.255

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 /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 →