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)10.6.128.0/19
network10.6.128.0/19
broadcast10.6.159.255
first host10.6.128.1
last host10.6.159.254
subnet mask255.255.224.0
wildcard0.0.31.255
addresses8,192
usable hosts8,190
classA
ipcalc 10.6.128.0/19
address00001010.00000110.10000000.00000000
subnet mask11111111.11111111.11100000.00000000
network00001010.00000110.10000000.00000000
broadcast00001010.00000110.10011111.11111111
green = network part, grey = host part
hex0x0a068000
decimal168198144
reverse dns0.128.6.10.in-addr.arpa
ipv4-mapped::ffff:a06:8000

/19 split into /32 · 8,192 subnets

close ×
#networkhost rangebroadcast
110.6.128.0/3210.6.128.0 – 10.6.128.010.6.128.0
210.6.128.1/3210.6.128.1 – 10.6.128.110.6.128.1
310.6.128.2/3210.6.128.2 – 10.6.128.210.6.128.2
410.6.128.3/3210.6.128.3 – 10.6.128.310.6.128.3
510.6.128.4/3210.6.128.4 – 10.6.128.410.6.128.4
610.6.128.5/3210.6.128.5 – 10.6.128.510.6.128.5
710.6.128.6/3210.6.128.6 – 10.6.128.610.6.128.6
810.6.128.7/3210.6.128.7 – 10.6.128.710.6.128.7
910.6.128.8/3210.6.128.8 – 10.6.128.810.6.128.8
1010.6.128.9/3210.6.128.9 – 10.6.128.910.6.128.9
1110.6.128.10/3210.6.128.10 – 10.6.128.1010.6.128.10
1210.6.128.11/3210.6.128.11 – 10.6.128.1110.6.128.11
1310.6.128.12/3210.6.128.12 – 10.6.128.1210.6.128.12
1410.6.128.13/3210.6.128.13 – 10.6.128.1310.6.128.13
1510.6.128.14/3210.6.128.14 – 10.6.128.1410.6.128.14
1610.6.128.15/3210.6.128.15 – 10.6.128.1510.6.128.15
1710.6.128.16/3210.6.128.16 – 10.6.128.1610.6.128.16
1810.6.128.17/3210.6.128.17 – 10.6.128.1710.6.128.17
1910.6.128.18/3210.6.128.18 – 10.6.128.1810.6.128.18
2010.6.128.19/3210.6.128.19 – 10.6.128.1910.6.128.19
2110.6.128.20/3210.6.128.20 – 10.6.128.2010.6.128.20
2210.6.128.21/3210.6.128.21 – 10.6.128.2110.6.128.21
2310.6.128.22/3210.6.128.22 – 10.6.128.2210.6.128.22
2410.6.128.23/3210.6.128.23 – 10.6.128.2310.6.128.23
2510.6.128.24/3210.6.128.24 – 10.6.128.2410.6.128.24
2610.6.128.25/3210.6.128.25 – 10.6.128.2510.6.128.25
2710.6.128.26/3210.6.128.26 – 10.6.128.2610.6.128.26
2810.6.128.27/3210.6.128.27 – 10.6.128.2710.6.128.27
2910.6.128.28/3210.6.128.28 – 10.6.128.2810.6.128.28
3010.6.128.29/3210.6.128.29 – 10.6.128.2910.6.128.29
3110.6.128.30/3210.6.128.30 – 10.6.128.3010.6.128.30
3210.6.128.31/3210.6.128.31 – 10.6.128.3110.6.128.31
3310.6.128.32/3210.6.128.32 – 10.6.128.3210.6.128.32
3410.6.128.33/3210.6.128.33 – 10.6.128.3310.6.128.33
3510.6.128.34/3210.6.128.34 – 10.6.128.3410.6.128.34
3610.6.128.35/3210.6.128.35 – 10.6.128.3510.6.128.35
3710.6.128.36/3210.6.128.36 – 10.6.128.3610.6.128.36
3810.6.128.37/3210.6.128.37 – 10.6.128.3710.6.128.37
3910.6.128.38/3210.6.128.38 – 10.6.128.3810.6.128.38
4010.6.128.39/3210.6.128.39 – 10.6.128.3910.6.128.39
4110.6.128.40/3210.6.128.40 – 10.6.128.4010.6.128.40
4210.6.128.41/3210.6.128.41 – 10.6.128.4110.6.128.41
4310.6.128.42/3210.6.128.42 – 10.6.128.4210.6.128.42
4410.6.128.43/3210.6.128.43 – 10.6.128.4310.6.128.43
4510.6.128.44/3210.6.128.44 – 10.6.128.4410.6.128.44
4610.6.128.45/3210.6.128.45 – 10.6.128.4510.6.128.45
4710.6.128.46/3210.6.128.46 – 10.6.128.4610.6.128.46
4810.6.128.47/3210.6.128.47 – 10.6.128.4710.6.128.47
4910.6.128.48/3210.6.128.48 – 10.6.128.4810.6.128.48
5010.6.128.49/3210.6.128.49 – 10.6.128.4910.6.128.49
5110.6.128.50/3210.6.128.50 – 10.6.128.5010.6.128.50
5210.6.128.51/3210.6.128.51 – 10.6.128.5110.6.128.51
5310.6.128.52/3210.6.128.52 – 10.6.128.5210.6.128.52
5410.6.128.53/3210.6.128.53 – 10.6.128.5310.6.128.53
5510.6.128.54/3210.6.128.54 – 10.6.128.5410.6.128.54
5610.6.128.55/3210.6.128.55 – 10.6.128.5510.6.128.55
5710.6.128.56/3210.6.128.56 – 10.6.128.5610.6.128.56
5810.6.128.57/3210.6.128.57 – 10.6.128.5710.6.128.57
5910.6.128.58/3210.6.128.58 – 10.6.128.5810.6.128.58
6010.6.128.59/3210.6.128.59 – 10.6.128.5910.6.128.59
6110.6.128.60/3210.6.128.60 – 10.6.128.6010.6.128.60
6210.6.128.61/3210.6.128.61 – 10.6.128.6110.6.128.61
6310.6.128.62/3210.6.128.62 – 10.6.128.6210.6.128.62
6410.6.128.63/3210.6.128.63 – 10.6.128.6310.6.128.63
6510.6.128.64/3210.6.128.64 – 10.6.128.6410.6.128.64
6610.6.128.65/3210.6.128.65 – 10.6.128.6510.6.128.65
6710.6.128.66/3210.6.128.66 – 10.6.128.6610.6.128.66
6810.6.128.67/3210.6.128.67 – 10.6.128.6710.6.128.67
6910.6.128.68/3210.6.128.68 – 10.6.128.6810.6.128.68
7010.6.128.69/3210.6.128.69 – 10.6.128.6910.6.128.69
7110.6.128.70/3210.6.128.70 – 10.6.128.7010.6.128.70
7210.6.128.71/3210.6.128.71 – 10.6.128.7110.6.128.71
7310.6.128.72/3210.6.128.72 – 10.6.128.7210.6.128.72
7410.6.128.73/3210.6.128.73 – 10.6.128.7310.6.128.73
7510.6.128.74/3210.6.128.74 – 10.6.128.7410.6.128.74
7610.6.128.75/3210.6.128.75 – 10.6.128.7510.6.128.75
7710.6.128.76/3210.6.128.76 – 10.6.128.7610.6.128.76
7810.6.128.77/3210.6.128.77 – 10.6.128.7710.6.128.77
7910.6.128.78/3210.6.128.78 – 10.6.128.7810.6.128.78
8010.6.128.79/3210.6.128.79 – 10.6.128.7910.6.128.79
8110.6.128.80/3210.6.128.80 – 10.6.128.8010.6.128.80
8210.6.128.81/3210.6.128.81 – 10.6.128.8110.6.128.81
8310.6.128.82/3210.6.128.82 – 10.6.128.8210.6.128.82
8410.6.128.83/3210.6.128.83 – 10.6.128.8310.6.128.83
8510.6.128.84/3210.6.128.84 – 10.6.128.8410.6.128.84
8610.6.128.85/3210.6.128.85 – 10.6.128.8510.6.128.85
8710.6.128.86/3210.6.128.86 – 10.6.128.8610.6.128.86
8810.6.128.87/3210.6.128.87 – 10.6.128.8710.6.128.87
8910.6.128.88/3210.6.128.88 – 10.6.128.8810.6.128.88
9010.6.128.89/3210.6.128.89 – 10.6.128.8910.6.128.89
9110.6.128.90/3210.6.128.90 – 10.6.128.9010.6.128.90
9210.6.128.91/3210.6.128.91 – 10.6.128.9110.6.128.91
9310.6.128.92/3210.6.128.92 – 10.6.128.9210.6.128.92
9410.6.128.93/3210.6.128.93 – 10.6.128.9310.6.128.93
9510.6.128.94/3210.6.128.94 – 10.6.128.9410.6.128.94
9610.6.128.95/3210.6.128.95 – 10.6.128.9510.6.128.95
9710.6.128.96/3210.6.128.96 – 10.6.128.9610.6.128.96
9810.6.128.97/3210.6.128.97 – 10.6.128.9710.6.128.97
9910.6.128.98/3210.6.128.98 – 10.6.128.9810.6.128.98
10010.6.128.99/3210.6.128.99 – 10.6.128.9910.6.128.99
10110.6.128.100/3210.6.128.100 – 10.6.128.10010.6.128.100
10210.6.128.101/3210.6.128.101 – 10.6.128.10110.6.128.101
10310.6.128.102/3210.6.128.102 – 10.6.128.10210.6.128.102
10410.6.128.103/3210.6.128.103 – 10.6.128.10310.6.128.103
10510.6.128.104/3210.6.128.104 – 10.6.128.10410.6.128.104
10610.6.128.105/3210.6.128.105 – 10.6.128.10510.6.128.105
10710.6.128.106/3210.6.128.106 – 10.6.128.10610.6.128.106
10810.6.128.107/3210.6.128.107 – 10.6.128.10710.6.128.107
10910.6.128.108/3210.6.128.108 – 10.6.128.10810.6.128.108
11010.6.128.109/3210.6.128.109 – 10.6.128.10910.6.128.109
11110.6.128.110/3210.6.128.110 – 10.6.128.11010.6.128.110
11210.6.128.111/3210.6.128.111 – 10.6.128.11110.6.128.111
11310.6.128.112/3210.6.128.112 – 10.6.128.11210.6.128.112
11410.6.128.113/3210.6.128.113 – 10.6.128.11310.6.128.113
11510.6.128.114/3210.6.128.114 – 10.6.128.11410.6.128.114
11610.6.128.115/3210.6.128.115 – 10.6.128.11510.6.128.115
11710.6.128.116/3210.6.128.116 – 10.6.128.11610.6.128.116
11810.6.128.117/3210.6.128.117 – 10.6.128.11710.6.128.117
11910.6.128.118/3210.6.128.118 – 10.6.128.11810.6.128.118
12010.6.128.119/3210.6.128.119 – 10.6.128.11910.6.128.119
12110.6.128.120/3210.6.128.120 – 10.6.128.12010.6.128.120
12210.6.128.121/3210.6.128.121 – 10.6.128.12110.6.128.121
12310.6.128.122/3210.6.128.122 – 10.6.128.12210.6.128.122
12410.6.128.123/3210.6.128.123 – 10.6.128.12310.6.128.123
12510.6.128.124/3210.6.128.124 – 10.6.128.12410.6.128.124
12610.6.128.125/3210.6.128.125 – 10.6.128.12510.6.128.125
12710.6.128.126/3210.6.128.126 – 10.6.128.12610.6.128.126
12810.6.128.127/3210.6.128.127 – 10.6.128.12710.6.128.127
12910.6.128.128/3210.6.128.128 – 10.6.128.12810.6.128.128
13010.6.128.129/3210.6.128.129 – 10.6.128.12910.6.128.129
13110.6.128.130/3210.6.128.130 – 10.6.128.13010.6.128.130
13210.6.128.131/3210.6.128.131 – 10.6.128.13110.6.128.131
13310.6.128.132/3210.6.128.132 – 10.6.128.13210.6.128.132
13410.6.128.133/3210.6.128.133 – 10.6.128.13310.6.128.133
13510.6.128.134/3210.6.128.134 – 10.6.128.13410.6.128.134
13610.6.128.135/3210.6.128.135 – 10.6.128.13510.6.128.135
13710.6.128.136/3210.6.128.136 – 10.6.128.13610.6.128.136
13810.6.128.137/3210.6.128.137 – 10.6.128.13710.6.128.137
13910.6.128.138/3210.6.128.138 – 10.6.128.13810.6.128.138
14010.6.128.139/3210.6.128.139 – 10.6.128.13910.6.128.139
14110.6.128.140/3210.6.128.140 – 10.6.128.14010.6.128.140
14210.6.128.141/3210.6.128.141 – 10.6.128.14110.6.128.141
14310.6.128.142/3210.6.128.142 – 10.6.128.14210.6.128.142
14410.6.128.143/3210.6.128.143 – 10.6.128.14310.6.128.143
14510.6.128.144/3210.6.128.144 – 10.6.128.14410.6.128.144
14610.6.128.145/3210.6.128.145 – 10.6.128.14510.6.128.145
14710.6.128.146/3210.6.128.146 – 10.6.128.14610.6.128.146
14810.6.128.147/3210.6.128.147 – 10.6.128.14710.6.128.147
14910.6.128.148/3210.6.128.148 – 10.6.128.14810.6.128.148
15010.6.128.149/3210.6.128.149 – 10.6.128.14910.6.128.149
15110.6.128.150/3210.6.128.150 – 10.6.128.15010.6.128.150
15210.6.128.151/3210.6.128.151 – 10.6.128.15110.6.128.151
15310.6.128.152/3210.6.128.152 – 10.6.128.15210.6.128.152
15410.6.128.153/3210.6.128.153 – 10.6.128.15310.6.128.153
15510.6.128.154/3210.6.128.154 – 10.6.128.15410.6.128.154
15610.6.128.155/3210.6.128.155 – 10.6.128.15510.6.128.155
15710.6.128.156/3210.6.128.156 – 10.6.128.15610.6.128.156
15810.6.128.157/3210.6.128.157 – 10.6.128.15710.6.128.157
15910.6.128.158/3210.6.128.158 – 10.6.128.15810.6.128.158
16010.6.128.159/3210.6.128.159 – 10.6.128.15910.6.128.159
16110.6.128.160/3210.6.128.160 – 10.6.128.16010.6.128.160
16210.6.128.161/3210.6.128.161 – 10.6.128.16110.6.128.161
16310.6.128.162/3210.6.128.162 – 10.6.128.16210.6.128.162
16410.6.128.163/3210.6.128.163 – 10.6.128.16310.6.128.163
16510.6.128.164/3210.6.128.164 – 10.6.128.16410.6.128.164
16610.6.128.165/3210.6.128.165 – 10.6.128.16510.6.128.165
16710.6.128.166/3210.6.128.166 – 10.6.128.16610.6.128.166
16810.6.128.167/3210.6.128.167 – 10.6.128.16710.6.128.167
16910.6.128.168/3210.6.128.168 – 10.6.128.16810.6.128.168
17010.6.128.169/3210.6.128.169 – 10.6.128.16910.6.128.169
17110.6.128.170/3210.6.128.170 – 10.6.128.17010.6.128.170
17210.6.128.171/3210.6.128.171 – 10.6.128.17110.6.128.171
17310.6.128.172/3210.6.128.172 – 10.6.128.17210.6.128.172
17410.6.128.173/3210.6.128.173 – 10.6.128.17310.6.128.173
17510.6.128.174/3210.6.128.174 – 10.6.128.17410.6.128.174
17610.6.128.175/3210.6.128.175 – 10.6.128.17510.6.128.175
17710.6.128.176/3210.6.128.176 – 10.6.128.17610.6.128.176
17810.6.128.177/3210.6.128.177 – 10.6.128.17710.6.128.177
17910.6.128.178/3210.6.128.178 – 10.6.128.17810.6.128.178
18010.6.128.179/3210.6.128.179 – 10.6.128.17910.6.128.179
18110.6.128.180/3210.6.128.180 – 10.6.128.18010.6.128.180
18210.6.128.181/3210.6.128.181 – 10.6.128.18110.6.128.181
18310.6.128.182/3210.6.128.182 – 10.6.128.18210.6.128.182
18410.6.128.183/3210.6.128.183 – 10.6.128.18310.6.128.183
18510.6.128.184/3210.6.128.184 – 10.6.128.18410.6.128.184
18610.6.128.185/3210.6.128.185 – 10.6.128.18510.6.128.185
18710.6.128.186/3210.6.128.186 – 10.6.128.18610.6.128.186
18810.6.128.187/3210.6.128.187 – 10.6.128.18710.6.128.187
18910.6.128.188/3210.6.128.188 – 10.6.128.18810.6.128.188
19010.6.128.189/3210.6.128.189 – 10.6.128.18910.6.128.189
19110.6.128.190/3210.6.128.190 – 10.6.128.19010.6.128.190
19210.6.128.191/3210.6.128.191 – 10.6.128.19110.6.128.191
19310.6.128.192/3210.6.128.192 – 10.6.128.19210.6.128.192
19410.6.128.193/3210.6.128.193 – 10.6.128.19310.6.128.193
19510.6.128.194/3210.6.128.194 – 10.6.128.19410.6.128.194
19610.6.128.195/3210.6.128.195 – 10.6.128.19510.6.128.195
19710.6.128.196/3210.6.128.196 – 10.6.128.19610.6.128.196
19810.6.128.197/3210.6.128.197 – 10.6.128.19710.6.128.197
19910.6.128.198/3210.6.128.198 – 10.6.128.19810.6.128.198
20010.6.128.199/3210.6.128.199 – 10.6.128.19910.6.128.199
20110.6.128.200/3210.6.128.200 – 10.6.128.20010.6.128.200
20210.6.128.201/3210.6.128.201 – 10.6.128.20110.6.128.201
20310.6.128.202/3210.6.128.202 – 10.6.128.20210.6.128.202
20410.6.128.203/3210.6.128.203 – 10.6.128.20310.6.128.203
20510.6.128.204/3210.6.128.204 – 10.6.128.20410.6.128.204
20610.6.128.205/3210.6.128.205 – 10.6.128.20510.6.128.205
20710.6.128.206/3210.6.128.206 – 10.6.128.20610.6.128.206
20810.6.128.207/3210.6.128.207 – 10.6.128.20710.6.128.207
20910.6.128.208/3210.6.128.208 – 10.6.128.20810.6.128.208
21010.6.128.209/3210.6.128.209 – 10.6.128.20910.6.128.209
21110.6.128.210/3210.6.128.210 – 10.6.128.21010.6.128.210
21210.6.128.211/3210.6.128.211 – 10.6.128.21110.6.128.211
21310.6.128.212/3210.6.128.212 – 10.6.128.21210.6.128.212
21410.6.128.213/3210.6.128.213 – 10.6.128.21310.6.128.213
21510.6.128.214/3210.6.128.214 – 10.6.128.21410.6.128.214
21610.6.128.215/3210.6.128.215 – 10.6.128.21510.6.128.215
21710.6.128.216/3210.6.128.216 – 10.6.128.21610.6.128.216
21810.6.128.217/3210.6.128.217 – 10.6.128.21710.6.128.217
21910.6.128.218/3210.6.128.218 – 10.6.128.21810.6.128.218
22010.6.128.219/3210.6.128.219 – 10.6.128.21910.6.128.219
22110.6.128.220/3210.6.128.220 – 10.6.128.22010.6.128.220
22210.6.128.221/3210.6.128.221 – 10.6.128.22110.6.128.221
22310.6.128.222/3210.6.128.222 – 10.6.128.22210.6.128.222
22410.6.128.223/3210.6.128.223 – 10.6.128.22310.6.128.223
22510.6.128.224/3210.6.128.224 – 10.6.128.22410.6.128.224
22610.6.128.225/3210.6.128.225 – 10.6.128.22510.6.128.225
22710.6.128.226/3210.6.128.226 – 10.6.128.22610.6.128.226
22810.6.128.227/3210.6.128.227 – 10.6.128.22710.6.128.227
22910.6.128.228/3210.6.128.228 – 10.6.128.22810.6.128.228
23010.6.128.229/3210.6.128.229 – 10.6.128.22910.6.128.229
23110.6.128.230/3210.6.128.230 – 10.6.128.23010.6.128.230
23210.6.128.231/3210.6.128.231 – 10.6.128.23110.6.128.231
23310.6.128.232/3210.6.128.232 – 10.6.128.23210.6.128.232
23410.6.128.233/3210.6.128.233 – 10.6.128.23310.6.128.233
23510.6.128.234/3210.6.128.234 – 10.6.128.23410.6.128.234
23610.6.128.235/3210.6.128.235 – 10.6.128.23510.6.128.235
23710.6.128.236/3210.6.128.236 – 10.6.128.23610.6.128.236
23810.6.128.237/3210.6.128.237 – 10.6.128.23710.6.128.237
23910.6.128.238/3210.6.128.238 – 10.6.128.23810.6.128.238
24010.6.128.239/3210.6.128.239 – 10.6.128.23910.6.128.239
24110.6.128.240/3210.6.128.240 – 10.6.128.24010.6.128.240
24210.6.128.241/3210.6.128.241 – 10.6.128.24110.6.128.241
24310.6.128.242/3210.6.128.242 – 10.6.128.24210.6.128.242
24410.6.128.243/3210.6.128.243 – 10.6.128.24310.6.128.243
24510.6.128.244/3210.6.128.244 – 10.6.128.24410.6.128.244
24610.6.128.245/3210.6.128.245 – 10.6.128.24510.6.128.245
24710.6.128.246/3210.6.128.246 – 10.6.128.24610.6.128.246
24810.6.128.247/3210.6.128.247 – 10.6.128.24710.6.128.247
24910.6.128.248/3210.6.128.248 – 10.6.128.24810.6.128.248
25010.6.128.249/3210.6.128.249 – 10.6.128.24910.6.128.249
25110.6.128.250/3210.6.128.250 – 10.6.128.25010.6.128.250
25210.6.128.251/3210.6.128.251 – 10.6.128.25110.6.128.251
25310.6.128.252/3210.6.128.252 – 10.6.128.25210.6.128.252
25410.6.128.253/3210.6.128.253 – 10.6.128.25310.6.128.253
25510.6.128.254/3210.6.128.254 – 10.6.128.25410.6.128.254
25610.6.128.255/3210.6.128.255 – 10.6.128.25510.6.128.255

showing 256 of 8,192

01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /19
/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-
/19255.255.224.08,1928,1901
/20255.255.240.04,0964,0942 split →
/21255.255.248.02,0482,0464 split →
/22255.255.252.01,0241,0228 split →
/23255.255.254.051251016 split →
/24255.255.255.025625432 split →
/25255.255.255.12812812664 split →
/26255.255.255.1926462128 split →
/27255.255.255.2243230256 split →
/28255.255.255.2401614512 split →
/29255.255.255.248861,024 split →
/30255.255.255.252422,048 split →
/31255.255.255.254224,096 split →
/32255.255.255.255118,192 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 →