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)10.7.208.0/21
network10.7.208.0/21
broadcast10.7.215.255
first host10.7.208.1
last host10.7.215.254
subnet mask255.255.248.0
wildcard0.0.7.255
addresses2,048
usable hosts2,046
classA
ipcalc 10.7.208.0/21
address00001010.00000111.11010000.00000000
subnet mask11111111.11111111.11111000.00000000
network00001010.00000111.11010000.00000000
broadcast00001010.00000111.11010111.11111111
green = network part, grey = host part
hex0x0a07d000
decimal168284160
reverse dns0.208.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:d000

/21 split into /31 · 1,024 subnets

close ×
#networkhost rangebroadcast
110.7.208.0/3110.7.208.0 – 10.7.208.110.7.208.1
210.7.208.2/3110.7.208.2 – 10.7.208.310.7.208.3
310.7.208.4/3110.7.208.4 – 10.7.208.510.7.208.5
410.7.208.6/3110.7.208.6 – 10.7.208.710.7.208.7
510.7.208.8/3110.7.208.8 – 10.7.208.910.7.208.9
610.7.208.10/3110.7.208.10 – 10.7.208.1110.7.208.11
710.7.208.12/3110.7.208.12 – 10.7.208.1310.7.208.13
810.7.208.14/3110.7.208.14 – 10.7.208.1510.7.208.15
910.7.208.16/3110.7.208.16 – 10.7.208.1710.7.208.17
1010.7.208.18/3110.7.208.18 – 10.7.208.1910.7.208.19
1110.7.208.20/3110.7.208.20 – 10.7.208.2110.7.208.21
1210.7.208.22/3110.7.208.22 – 10.7.208.2310.7.208.23
1310.7.208.24/3110.7.208.24 – 10.7.208.2510.7.208.25
1410.7.208.26/3110.7.208.26 – 10.7.208.2710.7.208.27
1510.7.208.28/3110.7.208.28 – 10.7.208.2910.7.208.29
1610.7.208.30/3110.7.208.30 – 10.7.208.3110.7.208.31
1710.7.208.32/3110.7.208.32 – 10.7.208.3310.7.208.33
1810.7.208.34/3110.7.208.34 – 10.7.208.3510.7.208.35
1910.7.208.36/3110.7.208.36 – 10.7.208.3710.7.208.37
2010.7.208.38/3110.7.208.38 – 10.7.208.3910.7.208.39
2110.7.208.40/3110.7.208.40 – 10.7.208.4110.7.208.41
2210.7.208.42/3110.7.208.42 – 10.7.208.4310.7.208.43
2310.7.208.44/3110.7.208.44 – 10.7.208.4510.7.208.45
2410.7.208.46/3110.7.208.46 – 10.7.208.4710.7.208.47
2510.7.208.48/3110.7.208.48 – 10.7.208.4910.7.208.49
2610.7.208.50/3110.7.208.50 – 10.7.208.5110.7.208.51
2710.7.208.52/3110.7.208.52 – 10.7.208.5310.7.208.53
2810.7.208.54/3110.7.208.54 – 10.7.208.5510.7.208.55
2910.7.208.56/3110.7.208.56 – 10.7.208.5710.7.208.57
3010.7.208.58/3110.7.208.58 – 10.7.208.5910.7.208.59
3110.7.208.60/3110.7.208.60 – 10.7.208.6110.7.208.61
3210.7.208.62/3110.7.208.62 – 10.7.208.6310.7.208.63
3310.7.208.64/3110.7.208.64 – 10.7.208.6510.7.208.65
3410.7.208.66/3110.7.208.66 – 10.7.208.6710.7.208.67
3510.7.208.68/3110.7.208.68 – 10.7.208.6910.7.208.69
3610.7.208.70/3110.7.208.70 – 10.7.208.7110.7.208.71
3710.7.208.72/3110.7.208.72 – 10.7.208.7310.7.208.73
3810.7.208.74/3110.7.208.74 – 10.7.208.7510.7.208.75
3910.7.208.76/3110.7.208.76 – 10.7.208.7710.7.208.77
4010.7.208.78/3110.7.208.78 – 10.7.208.7910.7.208.79
4110.7.208.80/3110.7.208.80 – 10.7.208.8110.7.208.81
4210.7.208.82/3110.7.208.82 – 10.7.208.8310.7.208.83
4310.7.208.84/3110.7.208.84 – 10.7.208.8510.7.208.85
4410.7.208.86/3110.7.208.86 – 10.7.208.8710.7.208.87
4510.7.208.88/3110.7.208.88 – 10.7.208.8910.7.208.89
4610.7.208.90/3110.7.208.90 – 10.7.208.9110.7.208.91
4710.7.208.92/3110.7.208.92 – 10.7.208.9310.7.208.93
4810.7.208.94/3110.7.208.94 – 10.7.208.9510.7.208.95
4910.7.208.96/3110.7.208.96 – 10.7.208.9710.7.208.97
5010.7.208.98/3110.7.208.98 – 10.7.208.9910.7.208.99
5110.7.208.100/3110.7.208.100 – 10.7.208.10110.7.208.101
5210.7.208.102/3110.7.208.102 – 10.7.208.10310.7.208.103
5310.7.208.104/3110.7.208.104 – 10.7.208.10510.7.208.105
5410.7.208.106/3110.7.208.106 – 10.7.208.10710.7.208.107
5510.7.208.108/3110.7.208.108 – 10.7.208.10910.7.208.109
5610.7.208.110/3110.7.208.110 – 10.7.208.11110.7.208.111
5710.7.208.112/3110.7.208.112 – 10.7.208.11310.7.208.113
5810.7.208.114/3110.7.208.114 – 10.7.208.11510.7.208.115
5910.7.208.116/3110.7.208.116 – 10.7.208.11710.7.208.117
6010.7.208.118/3110.7.208.118 – 10.7.208.11910.7.208.119
6110.7.208.120/3110.7.208.120 – 10.7.208.12110.7.208.121
6210.7.208.122/3110.7.208.122 – 10.7.208.12310.7.208.123
6310.7.208.124/3110.7.208.124 – 10.7.208.12510.7.208.125
6410.7.208.126/3110.7.208.126 – 10.7.208.12710.7.208.127
6510.7.208.128/3110.7.208.128 – 10.7.208.12910.7.208.129
6610.7.208.130/3110.7.208.130 – 10.7.208.13110.7.208.131
6710.7.208.132/3110.7.208.132 – 10.7.208.13310.7.208.133
6810.7.208.134/3110.7.208.134 – 10.7.208.13510.7.208.135
6910.7.208.136/3110.7.208.136 – 10.7.208.13710.7.208.137
7010.7.208.138/3110.7.208.138 – 10.7.208.13910.7.208.139
7110.7.208.140/3110.7.208.140 – 10.7.208.14110.7.208.141
7210.7.208.142/3110.7.208.142 – 10.7.208.14310.7.208.143
7310.7.208.144/3110.7.208.144 – 10.7.208.14510.7.208.145
7410.7.208.146/3110.7.208.146 – 10.7.208.14710.7.208.147
7510.7.208.148/3110.7.208.148 – 10.7.208.14910.7.208.149
7610.7.208.150/3110.7.208.150 – 10.7.208.15110.7.208.151
7710.7.208.152/3110.7.208.152 – 10.7.208.15310.7.208.153
7810.7.208.154/3110.7.208.154 – 10.7.208.15510.7.208.155
7910.7.208.156/3110.7.208.156 – 10.7.208.15710.7.208.157
8010.7.208.158/3110.7.208.158 – 10.7.208.15910.7.208.159
8110.7.208.160/3110.7.208.160 – 10.7.208.16110.7.208.161
8210.7.208.162/3110.7.208.162 – 10.7.208.16310.7.208.163
8310.7.208.164/3110.7.208.164 – 10.7.208.16510.7.208.165
8410.7.208.166/3110.7.208.166 – 10.7.208.16710.7.208.167
8510.7.208.168/3110.7.208.168 – 10.7.208.16910.7.208.169
8610.7.208.170/3110.7.208.170 – 10.7.208.17110.7.208.171
8710.7.208.172/3110.7.208.172 – 10.7.208.17310.7.208.173
8810.7.208.174/3110.7.208.174 – 10.7.208.17510.7.208.175
8910.7.208.176/3110.7.208.176 – 10.7.208.17710.7.208.177
9010.7.208.178/3110.7.208.178 – 10.7.208.17910.7.208.179
9110.7.208.180/3110.7.208.180 – 10.7.208.18110.7.208.181
9210.7.208.182/3110.7.208.182 – 10.7.208.18310.7.208.183
9310.7.208.184/3110.7.208.184 – 10.7.208.18510.7.208.185
9410.7.208.186/3110.7.208.186 – 10.7.208.18710.7.208.187
9510.7.208.188/3110.7.208.188 – 10.7.208.18910.7.208.189
9610.7.208.190/3110.7.208.190 – 10.7.208.19110.7.208.191
9710.7.208.192/3110.7.208.192 – 10.7.208.19310.7.208.193
9810.7.208.194/3110.7.208.194 – 10.7.208.19510.7.208.195
9910.7.208.196/3110.7.208.196 – 10.7.208.19710.7.208.197
10010.7.208.198/3110.7.208.198 – 10.7.208.19910.7.208.199
10110.7.208.200/3110.7.208.200 – 10.7.208.20110.7.208.201
10210.7.208.202/3110.7.208.202 – 10.7.208.20310.7.208.203
10310.7.208.204/3110.7.208.204 – 10.7.208.20510.7.208.205
10410.7.208.206/3110.7.208.206 – 10.7.208.20710.7.208.207
10510.7.208.208/3110.7.208.208 – 10.7.208.20910.7.208.209
10610.7.208.210/3110.7.208.210 – 10.7.208.21110.7.208.211
10710.7.208.212/3110.7.208.212 – 10.7.208.21310.7.208.213
10810.7.208.214/3110.7.208.214 – 10.7.208.21510.7.208.215
10910.7.208.216/3110.7.208.216 – 10.7.208.21710.7.208.217
11010.7.208.218/3110.7.208.218 – 10.7.208.21910.7.208.219
11110.7.208.220/3110.7.208.220 – 10.7.208.22110.7.208.221
11210.7.208.222/3110.7.208.222 – 10.7.208.22310.7.208.223
11310.7.208.224/3110.7.208.224 – 10.7.208.22510.7.208.225
11410.7.208.226/3110.7.208.226 – 10.7.208.22710.7.208.227
11510.7.208.228/3110.7.208.228 – 10.7.208.22910.7.208.229
11610.7.208.230/3110.7.208.230 – 10.7.208.23110.7.208.231
11710.7.208.232/3110.7.208.232 – 10.7.208.23310.7.208.233
11810.7.208.234/3110.7.208.234 – 10.7.208.23510.7.208.235
11910.7.208.236/3110.7.208.236 – 10.7.208.23710.7.208.237
12010.7.208.238/3110.7.208.238 – 10.7.208.23910.7.208.239
12110.7.208.240/3110.7.208.240 – 10.7.208.24110.7.208.241
12210.7.208.242/3110.7.208.242 – 10.7.208.24310.7.208.243
12310.7.208.244/3110.7.208.244 – 10.7.208.24510.7.208.245
12410.7.208.246/3110.7.208.246 – 10.7.208.24710.7.208.247
12510.7.208.248/3110.7.208.248 – 10.7.208.24910.7.208.249
12610.7.208.250/3110.7.208.250 – 10.7.208.25110.7.208.251
12710.7.208.252/3110.7.208.252 – 10.7.208.25310.7.208.253
12810.7.208.254/3110.7.208.254 – 10.7.208.25510.7.208.255
12910.7.209.0/3110.7.209.0 – 10.7.209.110.7.209.1
13010.7.209.2/3110.7.209.2 – 10.7.209.310.7.209.3
13110.7.209.4/3110.7.209.4 – 10.7.209.510.7.209.5
13210.7.209.6/3110.7.209.6 – 10.7.209.710.7.209.7
13310.7.209.8/3110.7.209.8 – 10.7.209.910.7.209.9
13410.7.209.10/3110.7.209.10 – 10.7.209.1110.7.209.11
13510.7.209.12/3110.7.209.12 – 10.7.209.1310.7.209.13
13610.7.209.14/3110.7.209.14 – 10.7.209.1510.7.209.15
13710.7.209.16/3110.7.209.16 – 10.7.209.1710.7.209.17
13810.7.209.18/3110.7.209.18 – 10.7.209.1910.7.209.19
13910.7.209.20/3110.7.209.20 – 10.7.209.2110.7.209.21
14010.7.209.22/3110.7.209.22 – 10.7.209.2310.7.209.23
14110.7.209.24/3110.7.209.24 – 10.7.209.2510.7.209.25
14210.7.209.26/3110.7.209.26 – 10.7.209.2710.7.209.27
14310.7.209.28/3110.7.209.28 – 10.7.209.2910.7.209.29
14410.7.209.30/3110.7.209.30 – 10.7.209.3110.7.209.31
14510.7.209.32/3110.7.209.32 – 10.7.209.3310.7.209.33
14610.7.209.34/3110.7.209.34 – 10.7.209.3510.7.209.35
14710.7.209.36/3110.7.209.36 – 10.7.209.3710.7.209.37
14810.7.209.38/3110.7.209.38 – 10.7.209.3910.7.209.39
14910.7.209.40/3110.7.209.40 – 10.7.209.4110.7.209.41
15010.7.209.42/3110.7.209.42 – 10.7.209.4310.7.209.43
15110.7.209.44/3110.7.209.44 – 10.7.209.4510.7.209.45
15210.7.209.46/3110.7.209.46 – 10.7.209.4710.7.209.47
15310.7.209.48/3110.7.209.48 – 10.7.209.4910.7.209.49
15410.7.209.50/3110.7.209.50 – 10.7.209.5110.7.209.51
15510.7.209.52/3110.7.209.52 – 10.7.209.5310.7.209.53
15610.7.209.54/3110.7.209.54 – 10.7.209.5510.7.209.55
15710.7.209.56/3110.7.209.56 – 10.7.209.5710.7.209.57
15810.7.209.58/3110.7.209.58 – 10.7.209.5910.7.209.59
15910.7.209.60/3110.7.209.60 – 10.7.209.6110.7.209.61
16010.7.209.62/3110.7.209.62 – 10.7.209.6310.7.209.63
16110.7.209.64/3110.7.209.64 – 10.7.209.6510.7.209.65
16210.7.209.66/3110.7.209.66 – 10.7.209.6710.7.209.67
16310.7.209.68/3110.7.209.68 – 10.7.209.6910.7.209.69
16410.7.209.70/3110.7.209.70 – 10.7.209.7110.7.209.71
16510.7.209.72/3110.7.209.72 – 10.7.209.7310.7.209.73
16610.7.209.74/3110.7.209.74 – 10.7.209.7510.7.209.75
16710.7.209.76/3110.7.209.76 – 10.7.209.7710.7.209.77
16810.7.209.78/3110.7.209.78 – 10.7.209.7910.7.209.79
16910.7.209.80/3110.7.209.80 – 10.7.209.8110.7.209.81
17010.7.209.82/3110.7.209.82 – 10.7.209.8310.7.209.83
17110.7.209.84/3110.7.209.84 – 10.7.209.8510.7.209.85
17210.7.209.86/3110.7.209.86 – 10.7.209.8710.7.209.87
17310.7.209.88/3110.7.209.88 – 10.7.209.8910.7.209.89
17410.7.209.90/3110.7.209.90 – 10.7.209.9110.7.209.91
17510.7.209.92/3110.7.209.92 – 10.7.209.9310.7.209.93
17610.7.209.94/3110.7.209.94 – 10.7.209.9510.7.209.95
17710.7.209.96/3110.7.209.96 – 10.7.209.9710.7.209.97
17810.7.209.98/3110.7.209.98 – 10.7.209.9910.7.209.99
17910.7.209.100/3110.7.209.100 – 10.7.209.10110.7.209.101
18010.7.209.102/3110.7.209.102 – 10.7.209.10310.7.209.103
18110.7.209.104/3110.7.209.104 – 10.7.209.10510.7.209.105
18210.7.209.106/3110.7.209.106 – 10.7.209.10710.7.209.107
18310.7.209.108/3110.7.209.108 – 10.7.209.10910.7.209.109
18410.7.209.110/3110.7.209.110 – 10.7.209.11110.7.209.111
18510.7.209.112/3110.7.209.112 – 10.7.209.11310.7.209.113
18610.7.209.114/3110.7.209.114 – 10.7.209.11510.7.209.115
18710.7.209.116/3110.7.209.116 – 10.7.209.11710.7.209.117
18810.7.209.118/3110.7.209.118 – 10.7.209.11910.7.209.119
18910.7.209.120/3110.7.209.120 – 10.7.209.12110.7.209.121
19010.7.209.122/3110.7.209.122 – 10.7.209.12310.7.209.123
19110.7.209.124/3110.7.209.124 – 10.7.209.12510.7.209.125
19210.7.209.126/3110.7.209.126 – 10.7.209.12710.7.209.127
19310.7.209.128/3110.7.209.128 – 10.7.209.12910.7.209.129
19410.7.209.130/3110.7.209.130 – 10.7.209.13110.7.209.131
19510.7.209.132/3110.7.209.132 – 10.7.209.13310.7.209.133
19610.7.209.134/3110.7.209.134 – 10.7.209.13510.7.209.135
19710.7.209.136/3110.7.209.136 – 10.7.209.13710.7.209.137
19810.7.209.138/3110.7.209.138 – 10.7.209.13910.7.209.139
19910.7.209.140/3110.7.209.140 – 10.7.209.14110.7.209.141
20010.7.209.142/3110.7.209.142 – 10.7.209.14310.7.209.143
20110.7.209.144/3110.7.209.144 – 10.7.209.14510.7.209.145
20210.7.209.146/3110.7.209.146 – 10.7.209.14710.7.209.147
20310.7.209.148/3110.7.209.148 – 10.7.209.14910.7.209.149
20410.7.209.150/3110.7.209.150 – 10.7.209.15110.7.209.151
20510.7.209.152/3110.7.209.152 – 10.7.209.15310.7.209.153
20610.7.209.154/3110.7.209.154 – 10.7.209.15510.7.209.155
20710.7.209.156/3110.7.209.156 – 10.7.209.15710.7.209.157
20810.7.209.158/3110.7.209.158 – 10.7.209.15910.7.209.159
20910.7.209.160/3110.7.209.160 – 10.7.209.16110.7.209.161
21010.7.209.162/3110.7.209.162 – 10.7.209.16310.7.209.163
21110.7.209.164/3110.7.209.164 – 10.7.209.16510.7.209.165
21210.7.209.166/3110.7.209.166 – 10.7.209.16710.7.209.167
21310.7.209.168/3110.7.209.168 – 10.7.209.16910.7.209.169
21410.7.209.170/3110.7.209.170 – 10.7.209.17110.7.209.171
21510.7.209.172/3110.7.209.172 – 10.7.209.17310.7.209.173
21610.7.209.174/3110.7.209.174 – 10.7.209.17510.7.209.175
21710.7.209.176/3110.7.209.176 – 10.7.209.17710.7.209.177
21810.7.209.178/3110.7.209.178 – 10.7.209.17910.7.209.179
21910.7.209.180/3110.7.209.180 – 10.7.209.18110.7.209.181
22010.7.209.182/3110.7.209.182 – 10.7.209.18310.7.209.183
22110.7.209.184/3110.7.209.184 – 10.7.209.18510.7.209.185
22210.7.209.186/3110.7.209.186 – 10.7.209.18710.7.209.187
22310.7.209.188/3110.7.209.188 – 10.7.209.18910.7.209.189
22410.7.209.190/3110.7.209.190 – 10.7.209.19110.7.209.191
22510.7.209.192/3110.7.209.192 – 10.7.209.19310.7.209.193
22610.7.209.194/3110.7.209.194 – 10.7.209.19510.7.209.195
22710.7.209.196/3110.7.209.196 – 10.7.209.19710.7.209.197
22810.7.209.198/3110.7.209.198 – 10.7.209.19910.7.209.199
22910.7.209.200/3110.7.209.200 – 10.7.209.20110.7.209.201
23010.7.209.202/3110.7.209.202 – 10.7.209.20310.7.209.203
23110.7.209.204/3110.7.209.204 – 10.7.209.20510.7.209.205
23210.7.209.206/3110.7.209.206 – 10.7.209.20710.7.209.207
23310.7.209.208/3110.7.209.208 – 10.7.209.20910.7.209.209
23410.7.209.210/3110.7.209.210 – 10.7.209.21110.7.209.211
23510.7.209.212/3110.7.209.212 – 10.7.209.21310.7.209.213
23610.7.209.214/3110.7.209.214 – 10.7.209.21510.7.209.215
23710.7.209.216/3110.7.209.216 – 10.7.209.21710.7.209.217
23810.7.209.218/3110.7.209.218 – 10.7.209.21910.7.209.219
23910.7.209.220/3110.7.209.220 – 10.7.209.22110.7.209.221
24010.7.209.222/3110.7.209.222 – 10.7.209.22310.7.209.223
24110.7.209.224/3110.7.209.224 – 10.7.209.22510.7.209.225
24210.7.209.226/3110.7.209.226 – 10.7.209.22710.7.209.227
24310.7.209.228/3110.7.209.228 – 10.7.209.22910.7.209.229
24410.7.209.230/3110.7.209.230 – 10.7.209.23110.7.209.231
24510.7.209.232/3110.7.209.232 – 10.7.209.23310.7.209.233
24610.7.209.234/3110.7.209.234 – 10.7.209.23510.7.209.235
24710.7.209.236/3110.7.209.236 – 10.7.209.23710.7.209.237
24810.7.209.238/3110.7.209.238 – 10.7.209.23910.7.209.239
24910.7.209.240/3110.7.209.240 – 10.7.209.24110.7.209.241
25010.7.209.242/3110.7.209.242 – 10.7.209.24310.7.209.243
25110.7.209.244/3110.7.209.244 – 10.7.209.24510.7.209.245
25210.7.209.246/3110.7.209.246 – 10.7.209.24710.7.209.247
25310.7.209.248/3110.7.209.248 – 10.7.209.24910.7.209.249
25410.7.209.250/3110.7.209.250 – 10.7.209.25110.7.209.251
25510.7.209.252/3110.7.209.252 – 10.7.209.25310.7.209.253
25610.7.209.254/3110.7.209.254 – 10.7.209.25510.7.209.255

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 →