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
Try:192.168.1.10/2410.0.0.0/8172.16.5.4/20203.0.113.9/29
IPv6 calculator →
private IP (RFC 1918)10.2.112.0/21
network10.2.112.0/21
broadcast10.2.119.255
first host10.2.112.1
last host10.2.119.254
subnet mask255.255.248.0
wildcard0.0.7.255
addresses2,048
usable hosts2,046
classA
ipcalc 10.2.112.0/21
address00001010.00000010.01110000.00000000
subnet mask11111111.11111111.11111000.00000000
network00001010.00000010.01110000.00000000
broadcast00001010.00000010.01110111.11111111
green = network part, grey = host part
hex0x0a027000
decimal167931904
reverse dns0.112.2.10.in-addr.arpa
ipv4-mapped::ffff:a02:7000

/21 split into /31 · 1,024 subnets

close ×
#networkhost rangebroadcast
110.2.112.0/3110.2.112.0 – 10.2.112.110.2.112.1
210.2.112.2/3110.2.112.2 – 10.2.112.310.2.112.3
310.2.112.4/3110.2.112.4 – 10.2.112.510.2.112.5
410.2.112.6/3110.2.112.6 – 10.2.112.710.2.112.7
510.2.112.8/3110.2.112.8 – 10.2.112.910.2.112.9
610.2.112.10/3110.2.112.10 – 10.2.112.1110.2.112.11
710.2.112.12/3110.2.112.12 – 10.2.112.1310.2.112.13
810.2.112.14/3110.2.112.14 – 10.2.112.1510.2.112.15
910.2.112.16/3110.2.112.16 – 10.2.112.1710.2.112.17
1010.2.112.18/3110.2.112.18 – 10.2.112.1910.2.112.19
1110.2.112.20/3110.2.112.20 – 10.2.112.2110.2.112.21
1210.2.112.22/3110.2.112.22 – 10.2.112.2310.2.112.23
1310.2.112.24/3110.2.112.24 – 10.2.112.2510.2.112.25
1410.2.112.26/3110.2.112.26 – 10.2.112.2710.2.112.27
1510.2.112.28/3110.2.112.28 – 10.2.112.2910.2.112.29
1610.2.112.30/3110.2.112.30 – 10.2.112.3110.2.112.31
1710.2.112.32/3110.2.112.32 – 10.2.112.3310.2.112.33
1810.2.112.34/3110.2.112.34 – 10.2.112.3510.2.112.35
1910.2.112.36/3110.2.112.36 – 10.2.112.3710.2.112.37
2010.2.112.38/3110.2.112.38 – 10.2.112.3910.2.112.39
2110.2.112.40/3110.2.112.40 – 10.2.112.4110.2.112.41
2210.2.112.42/3110.2.112.42 – 10.2.112.4310.2.112.43
2310.2.112.44/3110.2.112.44 – 10.2.112.4510.2.112.45
2410.2.112.46/3110.2.112.46 – 10.2.112.4710.2.112.47
2510.2.112.48/3110.2.112.48 – 10.2.112.4910.2.112.49
2610.2.112.50/3110.2.112.50 – 10.2.112.5110.2.112.51
2710.2.112.52/3110.2.112.52 – 10.2.112.5310.2.112.53
2810.2.112.54/3110.2.112.54 – 10.2.112.5510.2.112.55
2910.2.112.56/3110.2.112.56 – 10.2.112.5710.2.112.57
3010.2.112.58/3110.2.112.58 – 10.2.112.5910.2.112.59
3110.2.112.60/3110.2.112.60 – 10.2.112.6110.2.112.61
3210.2.112.62/3110.2.112.62 – 10.2.112.6310.2.112.63
3310.2.112.64/3110.2.112.64 – 10.2.112.6510.2.112.65
3410.2.112.66/3110.2.112.66 – 10.2.112.6710.2.112.67
3510.2.112.68/3110.2.112.68 – 10.2.112.6910.2.112.69
3610.2.112.70/3110.2.112.70 – 10.2.112.7110.2.112.71
3710.2.112.72/3110.2.112.72 – 10.2.112.7310.2.112.73
3810.2.112.74/3110.2.112.74 – 10.2.112.7510.2.112.75
3910.2.112.76/3110.2.112.76 – 10.2.112.7710.2.112.77
4010.2.112.78/3110.2.112.78 – 10.2.112.7910.2.112.79
4110.2.112.80/3110.2.112.80 – 10.2.112.8110.2.112.81
4210.2.112.82/3110.2.112.82 – 10.2.112.8310.2.112.83
4310.2.112.84/3110.2.112.84 – 10.2.112.8510.2.112.85
4410.2.112.86/3110.2.112.86 – 10.2.112.8710.2.112.87
4510.2.112.88/3110.2.112.88 – 10.2.112.8910.2.112.89
4610.2.112.90/3110.2.112.90 – 10.2.112.9110.2.112.91
4710.2.112.92/3110.2.112.92 – 10.2.112.9310.2.112.93
4810.2.112.94/3110.2.112.94 – 10.2.112.9510.2.112.95
4910.2.112.96/3110.2.112.96 – 10.2.112.9710.2.112.97
5010.2.112.98/3110.2.112.98 – 10.2.112.9910.2.112.99
5110.2.112.100/3110.2.112.100 – 10.2.112.10110.2.112.101
5210.2.112.102/3110.2.112.102 – 10.2.112.10310.2.112.103
5310.2.112.104/3110.2.112.104 – 10.2.112.10510.2.112.105
5410.2.112.106/3110.2.112.106 – 10.2.112.10710.2.112.107
5510.2.112.108/3110.2.112.108 – 10.2.112.10910.2.112.109
5610.2.112.110/3110.2.112.110 – 10.2.112.11110.2.112.111
5710.2.112.112/3110.2.112.112 – 10.2.112.11310.2.112.113
5810.2.112.114/3110.2.112.114 – 10.2.112.11510.2.112.115
5910.2.112.116/3110.2.112.116 – 10.2.112.11710.2.112.117
6010.2.112.118/3110.2.112.118 – 10.2.112.11910.2.112.119
6110.2.112.120/3110.2.112.120 – 10.2.112.12110.2.112.121
6210.2.112.122/3110.2.112.122 – 10.2.112.12310.2.112.123
6310.2.112.124/3110.2.112.124 – 10.2.112.12510.2.112.125
6410.2.112.126/3110.2.112.126 – 10.2.112.12710.2.112.127
6510.2.112.128/3110.2.112.128 – 10.2.112.12910.2.112.129
6610.2.112.130/3110.2.112.130 – 10.2.112.13110.2.112.131
6710.2.112.132/3110.2.112.132 – 10.2.112.13310.2.112.133
6810.2.112.134/3110.2.112.134 – 10.2.112.13510.2.112.135
6910.2.112.136/3110.2.112.136 – 10.2.112.13710.2.112.137
7010.2.112.138/3110.2.112.138 – 10.2.112.13910.2.112.139
7110.2.112.140/3110.2.112.140 – 10.2.112.14110.2.112.141
7210.2.112.142/3110.2.112.142 – 10.2.112.14310.2.112.143
7310.2.112.144/3110.2.112.144 – 10.2.112.14510.2.112.145
7410.2.112.146/3110.2.112.146 – 10.2.112.14710.2.112.147
7510.2.112.148/3110.2.112.148 – 10.2.112.14910.2.112.149
7610.2.112.150/3110.2.112.150 – 10.2.112.15110.2.112.151
7710.2.112.152/3110.2.112.152 – 10.2.112.15310.2.112.153
7810.2.112.154/3110.2.112.154 – 10.2.112.15510.2.112.155
7910.2.112.156/3110.2.112.156 – 10.2.112.15710.2.112.157
8010.2.112.158/3110.2.112.158 – 10.2.112.15910.2.112.159
8110.2.112.160/3110.2.112.160 – 10.2.112.16110.2.112.161
8210.2.112.162/3110.2.112.162 – 10.2.112.16310.2.112.163
8310.2.112.164/3110.2.112.164 – 10.2.112.16510.2.112.165
8410.2.112.166/3110.2.112.166 – 10.2.112.16710.2.112.167
8510.2.112.168/3110.2.112.168 – 10.2.112.16910.2.112.169
8610.2.112.170/3110.2.112.170 – 10.2.112.17110.2.112.171
8710.2.112.172/3110.2.112.172 – 10.2.112.17310.2.112.173
8810.2.112.174/3110.2.112.174 – 10.2.112.17510.2.112.175
8910.2.112.176/3110.2.112.176 – 10.2.112.17710.2.112.177
9010.2.112.178/3110.2.112.178 – 10.2.112.17910.2.112.179
9110.2.112.180/3110.2.112.180 – 10.2.112.18110.2.112.181
9210.2.112.182/3110.2.112.182 – 10.2.112.18310.2.112.183
9310.2.112.184/3110.2.112.184 – 10.2.112.18510.2.112.185
9410.2.112.186/3110.2.112.186 – 10.2.112.18710.2.112.187
9510.2.112.188/3110.2.112.188 – 10.2.112.18910.2.112.189
9610.2.112.190/3110.2.112.190 – 10.2.112.19110.2.112.191
9710.2.112.192/3110.2.112.192 – 10.2.112.19310.2.112.193
9810.2.112.194/3110.2.112.194 – 10.2.112.19510.2.112.195
9910.2.112.196/3110.2.112.196 – 10.2.112.19710.2.112.197
10010.2.112.198/3110.2.112.198 – 10.2.112.19910.2.112.199
10110.2.112.200/3110.2.112.200 – 10.2.112.20110.2.112.201
10210.2.112.202/3110.2.112.202 – 10.2.112.20310.2.112.203
10310.2.112.204/3110.2.112.204 – 10.2.112.20510.2.112.205
10410.2.112.206/3110.2.112.206 – 10.2.112.20710.2.112.207
10510.2.112.208/3110.2.112.208 – 10.2.112.20910.2.112.209
10610.2.112.210/3110.2.112.210 – 10.2.112.21110.2.112.211
10710.2.112.212/3110.2.112.212 – 10.2.112.21310.2.112.213
10810.2.112.214/3110.2.112.214 – 10.2.112.21510.2.112.215
10910.2.112.216/3110.2.112.216 – 10.2.112.21710.2.112.217
11010.2.112.218/3110.2.112.218 – 10.2.112.21910.2.112.219
11110.2.112.220/3110.2.112.220 – 10.2.112.22110.2.112.221
11210.2.112.222/3110.2.112.222 – 10.2.112.22310.2.112.223
11310.2.112.224/3110.2.112.224 – 10.2.112.22510.2.112.225
11410.2.112.226/3110.2.112.226 – 10.2.112.22710.2.112.227
11510.2.112.228/3110.2.112.228 – 10.2.112.22910.2.112.229
11610.2.112.230/3110.2.112.230 – 10.2.112.23110.2.112.231
11710.2.112.232/3110.2.112.232 – 10.2.112.23310.2.112.233
11810.2.112.234/3110.2.112.234 – 10.2.112.23510.2.112.235
11910.2.112.236/3110.2.112.236 – 10.2.112.23710.2.112.237
12010.2.112.238/3110.2.112.238 – 10.2.112.23910.2.112.239
12110.2.112.240/3110.2.112.240 – 10.2.112.24110.2.112.241
12210.2.112.242/3110.2.112.242 – 10.2.112.24310.2.112.243
12310.2.112.244/3110.2.112.244 – 10.2.112.24510.2.112.245
12410.2.112.246/3110.2.112.246 – 10.2.112.24710.2.112.247
12510.2.112.248/3110.2.112.248 – 10.2.112.24910.2.112.249
12610.2.112.250/3110.2.112.250 – 10.2.112.25110.2.112.251
12710.2.112.252/3110.2.112.252 – 10.2.112.25310.2.112.253
12810.2.112.254/3110.2.112.254 – 10.2.112.25510.2.112.255
12910.2.113.0/3110.2.113.0 – 10.2.113.110.2.113.1
13010.2.113.2/3110.2.113.2 – 10.2.113.310.2.113.3
13110.2.113.4/3110.2.113.4 – 10.2.113.510.2.113.5
13210.2.113.6/3110.2.113.6 – 10.2.113.710.2.113.7
13310.2.113.8/3110.2.113.8 – 10.2.113.910.2.113.9
13410.2.113.10/3110.2.113.10 – 10.2.113.1110.2.113.11
13510.2.113.12/3110.2.113.12 – 10.2.113.1310.2.113.13
13610.2.113.14/3110.2.113.14 – 10.2.113.1510.2.113.15
13710.2.113.16/3110.2.113.16 – 10.2.113.1710.2.113.17
13810.2.113.18/3110.2.113.18 – 10.2.113.1910.2.113.19
13910.2.113.20/3110.2.113.20 – 10.2.113.2110.2.113.21
14010.2.113.22/3110.2.113.22 – 10.2.113.2310.2.113.23
14110.2.113.24/3110.2.113.24 – 10.2.113.2510.2.113.25
14210.2.113.26/3110.2.113.26 – 10.2.113.2710.2.113.27
14310.2.113.28/3110.2.113.28 – 10.2.113.2910.2.113.29
14410.2.113.30/3110.2.113.30 – 10.2.113.3110.2.113.31
14510.2.113.32/3110.2.113.32 – 10.2.113.3310.2.113.33
14610.2.113.34/3110.2.113.34 – 10.2.113.3510.2.113.35
14710.2.113.36/3110.2.113.36 – 10.2.113.3710.2.113.37
14810.2.113.38/3110.2.113.38 – 10.2.113.3910.2.113.39
14910.2.113.40/3110.2.113.40 – 10.2.113.4110.2.113.41
15010.2.113.42/3110.2.113.42 – 10.2.113.4310.2.113.43
15110.2.113.44/3110.2.113.44 – 10.2.113.4510.2.113.45
15210.2.113.46/3110.2.113.46 – 10.2.113.4710.2.113.47
15310.2.113.48/3110.2.113.48 – 10.2.113.4910.2.113.49
15410.2.113.50/3110.2.113.50 – 10.2.113.5110.2.113.51
15510.2.113.52/3110.2.113.52 – 10.2.113.5310.2.113.53
15610.2.113.54/3110.2.113.54 – 10.2.113.5510.2.113.55
15710.2.113.56/3110.2.113.56 – 10.2.113.5710.2.113.57
15810.2.113.58/3110.2.113.58 – 10.2.113.5910.2.113.59
15910.2.113.60/3110.2.113.60 – 10.2.113.6110.2.113.61
16010.2.113.62/3110.2.113.62 – 10.2.113.6310.2.113.63
16110.2.113.64/3110.2.113.64 – 10.2.113.6510.2.113.65
16210.2.113.66/3110.2.113.66 – 10.2.113.6710.2.113.67
16310.2.113.68/3110.2.113.68 – 10.2.113.6910.2.113.69
16410.2.113.70/3110.2.113.70 – 10.2.113.7110.2.113.71
16510.2.113.72/3110.2.113.72 – 10.2.113.7310.2.113.73
16610.2.113.74/3110.2.113.74 – 10.2.113.7510.2.113.75
16710.2.113.76/3110.2.113.76 – 10.2.113.7710.2.113.77
16810.2.113.78/3110.2.113.78 – 10.2.113.7910.2.113.79
16910.2.113.80/3110.2.113.80 – 10.2.113.8110.2.113.81
17010.2.113.82/3110.2.113.82 – 10.2.113.8310.2.113.83
17110.2.113.84/3110.2.113.84 – 10.2.113.8510.2.113.85
17210.2.113.86/3110.2.113.86 – 10.2.113.8710.2.113.87
17310.2.113.88/3110.2.113.88 – 10.2.113.8910.2.113.89
17410.2.113.90/3110.2.113.90 – 10.2.113.9110.2.113.91
17510.2.113.92/3110.2.113.92 – 10.2.113.9310.2.113.93
17610.2.113.94/3110.2.113.94 – 10.2.113.9510.2.113.95
17710.2.113.96/3110.2.113.96 – 10.2.113.9710.2.113.97
17810.2.113.98/3110.2.113.98 – 10.2.113.9910.2.113.99
17910.2.113.100/3110.2.113.100 – 10.2.113.10110.2.113.101
18010.2.113.102/3110.2.113.102 – 10.2.113.10310.2.113.103
18110.2.113.104/3110.2.113.104 – 10.2.113.10510.2.113.105
18210.2.113.106/3110.2.113.106 – 10.2.113.10710.2.113.107
18310.2.113.108/3110.2.113.108 – 10.2.113.10910.2.113.109
18410.2.113.110/3110.2.113.110 – 10.2.113.11110.2.113.111
18510.2.113.112/3110.2.113.112 – 10.2.113.11310.2.113.113
18610.2.113.114/3110.2.113.114 – 10.2.113.11510.2.113.115
18710.2.113.116/3110.2.113.116 – 10.2.113.11710.2.113.117
18810.2.113.118/3110.2.113.118 – 10.2.113.11910.2.113.119
18910.2.113.120/3110.2.113.120 – 10.2.113.12110.2.113.121
19010.2.113.122/3110.2.113.122 – 10.2.113.12310.2.113.123
19110.2.113.124/3110.2.113.124 – 10.2.113.12510.2.113.125
19210.2.113.126/3110.2.113.126 – 10.2.113.12710.2.113.127
19310.2.113.128/3110.2.113.128 – 10.2.113.12910.2.113.129
19410.2.113.130/3110.2.113.130 – 10.2.113.13110.2.113.131
19510.2.113.132/3110.2.113.132 – 10.2.113.13310.2.113.133
19610.2.113.134/3110.2.113.134 – 10.2.113.13510.2.113.135
19710.2.113.136/3110.2.113.136 – 10.2.113.13710.2.113.137
19810.2.113.138/3110.2.113.138 – 10.2.113.13910.2.113.139
19910.2.113.140/3110.2.113.140 – 10.2.113.14110.2.113.141
20010.2.113.142/3110.2.113.142 – 10.2.113.14310.2.113.143
20110.2.113.144/3110.2.113.144 – 10.2.113.14510.2.113.145
20210.2.113.146/3110.2.113.146 – 10.2.113.14710.2.113.147
20310.2.113.148/3110.2.113.148 – 10.2.113.14910.2.113.149
20410.2.113.150/3110.2.113.150 – 10.2.113.15110.2.113.151
20510.2.113.152/3110.2.113.152 – 10.2.113.15310.2.113.153
20610.2.113.154/3110.2.113.154 – 10.2.113.15510.2.113.155
20710.2.113.156/3110.2.113.156 – 10.2.113.15710.2.113.157
20810.2.113.158/3110.2.113.158 – 10.2.113.15910.2.113.159
20910.2.113.160/3110.2.113.160 – 10.2.113.16110.2.113.161
21010.2.113.162/3110.2.113.162 – 10.2.113.16310.2.113.163
21110.2.113.164/3110.2.113.164 – 10.2.113.16510.2.113.165
21210.2.113.166/3110.2.113.166 – 10.2.113.16710.2.113.167
21310.2.113.168/3110.2.113.168 – 10.2.113.16910.2.113.169
21410.2.113.170/3110.2.113.170 – 10.2.113.17110.2.113.171
21510.2.113.172/3110.2.113.172 – 10.2.113.17310.2.113.173
21610.2.113.174/3110.2.113.174 – 10.2.113.17510.2.113.175
21710.2.113.176/3110.2.113.176 – 10.2.113.17710.2.113.177
21810.2.113.178/3110.2.113.178 – 10.2.113.17910.2.113.179
21910.2.113.180/3110.2.113.180 – 10.2.113.18110.2.113.181
22010.2.113.182/3110.2.113.182 – 10.2.113.18310.2.113.183
22110.2.113.184/3110.2.113.184 – 10.2.113.18510.2.113.185
22210.2.113.186/3110.2.113.186 – 10.2.113.18710.2.113.187
22310.2.113.188/3110.2.113.188 – 10.2.113.18910.2.113.189
22410.2.113.190/3110.2.113.190 – 10.2.113.19110.2.113.191
22510.2.113.192/3110.2.113.192 – 10.2.113.19310.2.113.193
22610.2.113.194/3110.2.113.194 – 10.2.113.19510.2.113.195
22710.2.113.196/3110.2.113.196 – 10.2.113.19710.2.113.197
22810.2.113.198/3110.2.113.198 – 10.2.113.19910.2.113.199
22910.2.113.200/3110.2.113.200 – 10.2.113.20110.2.113.201
23010.2.113.202/3110.2.113.202 – 10.2.113.20310.2.113.203
23110.2.113.204/3110.2.113.204 – 10.2.113.20510.2.113.205
23210.2.113.206/3110.2.113.206 – 10.2.113.20710.2.113.207
23310.2.113.208/3110.2.113.208 – 10.2.113.20910.2.113.209
23410.2.113.210/3110.2.113.210 – 10.2.113.21110.2.113.211
23510.2.113.212/3110.2.113.212 – 10.2.113.21310.2.113.213
23610.2.113.214/3110.2.113.214 – 10.2.113.21510.2.113.215
23710.2.113.216/3110.2.113.216 – 10.2.113.21710.2.113.217
23810.2.113.218/3110.2.113.218 – 10.2.113.21910.2.113.219
23910.2.113.220/3110.2.113.220 – 10.2.113.22110.2.113.221
24010.2.113.222/3110.2.113.222 – 10.2.113.22310.2.113.223
24110.2.113.224/3110.2.113.224 – 10.2.113.22510.2.113.225
24210.2.113.226/3110.2.113.226 – 10.2.113.22710.2.113.227
24310.2.113.228/3110.2.113.228 – 10.2.113.22910.2.113.229
24410.2.113.230/3110.2.113.230 – 10.2.113.23110.2.113.231
24510.2.113.232/3110.2.113.232 – 10.2.113.23310.2.113.233
24610.2.113.234/3110.2.113.234 – 10.2.113.23510.2.113.235
24710.2.113.236/3110.2.113.236 – 10.2.113.23710.2.113.237
24810.2.113.238/3110.2.113.238 – 10.2.113.23910.2.113.239
24910.2.113.240/3110.2.113.240 – 10.2.113.24110.2.113.241
25010.2.113.242/3110.2.113.242 – 10.2.113.24310.2.113.243
25110.2.113.244/3110.2.113.244 – 10.2.113.24510.2.113.245
25210.2.113.246/3110.2.113.246 – 10.2.113.24710.2.113.247
25310.2.113.248/3110.2.113.248 – 10.2.113.24910.2.113.249
25410.2.113.250/3110.2.113.250 – 10.2.113.25110.2.113.251
25510.2.113.252/3110.2.113.252 – 10.2.113.25310.2.113.253
25610.2.113.254/3110.2.113.254 – 10.2.113.25510.2.113.255

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 /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 →