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)10.2.152.0/21
network10.2.152.0/21
broadcast10.2.159.255
first host10.2.152.1
last host10.2.159.254
subnet mask255.255.248.0
wildcard0.0.7.255
addresses2,048
usable hosts2,046
classA
ipcalc 10.2.152.0/21
address00001010.00000010.10011000.00000000
subnet mask11111111.11111111.11111000.00000000
network00001010.00000010.10011000.00000000
broadcast00001010.00000010.10011111.11111111
green = network part, grey = host part
hex0x0a029800
decimal167942144
reverse dns0.152.2.10.in-addr.arpa
ipv4-mapped::ffff:a02:9800

/21 split into /31 · 1,024 subnets

close ×
#networkhost rangebroadcast
110.2.152.0/3110.2.152.0 – 10.2.152.110.2.152.1
210.2.152.2/3110.2.152.2 – 10.2.152.310.2.152.3
310.2.152.4/3110.2.152.4 – 10.2.152.510.2.152.5
410.2.152.6/3110.2.152.6 – 10.2.152.710.2.152.7
510.2.152.8/3110.2.152.8 – 10.2.152.910.2.152.9
610.2.152.10/3110.2.152.10 – 10.2.152.1110.2.152.11
710.2.152.12/3110.2.152.12 – 10.2.152.1310.2.152.13
810.2.152.14/3110.2.152.14 – 10.2.152.1510.2.152.15
910.2.152.16/3110.2.152.16 – 10.2.152.1710.2.152.17
1010.2.152.18/3110.2.152.18 – 10.2.152.1910.2.152.19
1110.2.152.20/3110.2.152.20 – 10.2.152.2110.2.152.21
1210.2.152.22/3110.2.152.22 – 10.2.152.2310.2.152.23
1310.2.152.24/3110.2.152.24 – 10.2.152.2510.2.152.25
1410.2.152.26/3110.2.152.26 – 10.2.152.2710.2.152.27
1510.2.152.28/3110.2.152.28 – 10.2.152.2910.2.152.29
1610.2.152.30/3110.2.152.30 – 10.2.152.3110.2.152.31
1710.2.152.32/3110.2.152.32 – 10.2.152.3310.2.152.33
1810.2.152.34/3110.2.152.34 – 10.2.152.3510.2.152.35
1910.2.152.36/3110.2.152.36 – 10.2.152.3710.2.152.37
2010.2.152.38/3110.2.152.38 – 10.2.152.3910.2.152.39
2110.2.152.40/3110.2.152.40 – 10.2.152.4110.2.152.41
2210.2.152.42/3110.2.152.42 – 10.2.152.4310.2.152.43
2310.2.152.44/3110.2.152.44 – 10.2.152.4510.2.152.45
2410.2.152.46/3110.2.152.46 – 10.2.152.4710.2.152.47
2510.2.152.48/3110.2.152.48 – 10.2.152.4910.2.152.49
2610.2.152.50/3110.2.152.50 – 10.2.152.5110.2.152.51
2710.2.152.52/3110.2.152.52 – 10.2.152.5310.2.152.53
2810.2.152.54/3110.2.152.54 – 10.2.152.5510.2.152.55
2910.2.152.56/3110.2.152.56 – 10.2.152.5710.2.152.57
3010.2.152.58/3110.2.152.58 – 10.2.152.5910.2.152.59
3110.2.152.60/3110.2.152.60 – 10.2.152.6110.2.152.61
3210.2.152.62/3110.2.152.62 – 10.2.152.6310.2.152.63
3310.2.152.64/3110.2.152.64 – 10.2.152.6510.2.152.65
3410.2.152.66/3110.2.152.66 – 10.2.152.6710.2.152.67
3510.2.152.68/3110.2.152.68 – 10.2.152.6910.2.152.69
3610.2.152.70/3110.2.152.70 – 10.2.152.7110.2.152.71
3710.2.152.72/3110.2.152.72 – 10.2.152.7310.2.152.73
3810.2.152.74/3110.2.152.74 – 10.2.152.7510.2.152.75
3910.2.152.76/3110.2.152.76 – 10.2.152.7710.2.152.77
4010.2.152.78/3110.2.152.78 – 10.2.152.7910.2.152.79
4110.2.152.80/3110.2.152.80 – 10.2.152.8110.2.152.81
4210.2.152.82/3110.2.152.82 – 10.2.152.8310.2.152.83
4310.2.152.84/3110.2.152.84 – 10.2.152.8510.2.152.85
4410.2.152.86/3110.2.152.86 – 10.2.152.8710.2.152.87
4510.2.152.88/3110.2.152.88 – 10.2.152.8910.2.152.89
4610.2.152.90/3110.2.152.90 – 10.2.152.9110.2.152.91
4710.2.152.92/3110.2.152.92 – 10.2.152.9310.2.152.93
4810.2.152.94/3110.2.152.94 – 10.2.152.9510.2.152.95
4910.2.152.96/3110.2.152.96 – 10.2.152.9710.2.152.97
5010.2.152.98/3110.2.152.98 – 10.2.152.9910.2.152.99
5110.2.152.100/3110.2.152.100 – 10.2.152.10110.2.152.101
5210.2.152.102/3110.2.152.102 – 10.2.152.10310.2.152.103
5310.2.152.104/3110.2.152.104 – 10.2.152.10510.2.152.105
5410.2.152.106/3110.2.152.106 – 10.2.152.10710.2.152.107
5510.2.152.108/3110.2.152.108 – 10.2.152.10910.2.152.109
5610.2.152.110/3110.2.152.110 – 10.2.152.11110.2.152.111
5710.2.152.112/3110.2.152.112 – 10.2.152.11310.2.152.113
5810.2.152.114/3110.2.152.114 – 10.2.152.11510.2.152.115
5910.2.152.116/3110.2.152.116 – 10.2.152.11710.2.152.117
6010.2.152.118/3110.2.152.118 – 10.2.152.11910.2.152.119
6110.2.152.120/3110.2.152.120 – 10.2.152.12110.2.152.121
6210.2.152.122/3110.2.152.122 – 10.2.152.12310.2.152.123
6310.2.152.124/3110.2.152.124 – 10.2.152.12510.2.152.125
6410.2.152.126/3110.2.152.126 – 10.2.152.12710.2.152.127
6510.2.152.128/3110.2.152.128 – 10.2.152.12910.2.152.129
6610.2.152.130/3110.2.152.130 – 10.2.152.13110.2.152.131
6710.2.152.132/3110.2.152.132 – 10.2.152.13310.2.152.133
6810.2.152.134/3110.2.152.134 – 10.2.152.13510.2.152.135
6910.2.152.136/3110.2.152.136 – 10.2.152.13710.2.152.137
7010.2.152.138/3110.2.152.138 – 10.2.152.13910.2.152.139
7110.2.152.140/3110.2.152.140 – 10.2.152.14110.2.152.141
7210.2.152.142/3110.2.152.142 – 10.2.152.14310.2.152.143
7310.2.152.144/3110.2.152.144 – 10.2.152.14510.2.152.145
7410.2.152.146/3110.2.152.146 – 10.2.152.14710.2.152.147
7510.2.152.148/3110.2.152.148 – 10.2.152.14910.2.152.149
7610.2.152.150/3110.2.152.150 – 10.2.152.15110.2.152.151
7710.2.152.152/3110.2.152.152 – 10.2.152.15310.2.152.153
7810.2.152.154/3110.2.152.154 – 10.2.152.15510.2.152.155
7910.2.152.156/3110.2.152.156 – 10.2.152.15710.2.152.157
8010.2.152.158/3110.2.152.158 – 10.2.152.15910.2.152.159
8110.2.152.160/3110.2.152.160 – 10.2.152.16110.2.152.161
8210.2.152.162/3110.2.152.162 – 10.2.152.16310.2.152.163
8310.2.152.164/3110.2.152.164 – 10.2.152.16510.2.152.165
8410.2.152.166/3110.2.152.166 – 10.2.152.16710.2.152.167
8510.2.152.168/3110.2.152.168 – 10.2.152.16910.2.152.169
8610.2.152.170/3110.2.152.170 – 10.2.152.17110.2.152.171
8710.2.152.172/3110.2.152.172 – 10.2.152.17310.2.152.173
8810.2.152.174/3110.2.152.174 – 10.2.152.17510.2.152.175
8910.2.152.176/3110.2.152.176 – 10.2.152.17710.2.152.177
9010.2.152.178/3110.2.152.178 – 10.2.152.17910.2.152.179
9110.2.152.180/3110.2.152.180 – 10.2.152.18110.2.152.181
9210.2.152.182/3110.2.152.182 – 10.2.152.18310.2.152.183
9310.2.152.184/3110.2.152.184 – 10.2.152.18510.2.152.185
9410.2.152.186/3110.2.152.186 – 10.2.152.18710.2.152.187
9510.2.152.188/3110.2.152.188 – 10.2.152.18910.2.152.189
9610.2.152.190/3110.2.152.190 – 10.2.152.19110.2.152.191
9710.2.152.192/3110.2.152.192 – 10.2.152.19310.2.152.193
9810.2.152.194/3110.2.152.194 – 10.2.152.19510.2.152.195
9910.2.152.196/3110.2.152.196 – 10.2.152.19710.2.152.197
10010.2.152.198/3110.2.152.198 – 10.2.152.19910.2.152.199
10110.2.152.200/3110.2.152.200 – 10.2.152.20110.2.152.201
10210.2.152.202/3110.2.152.202 – 10.2.152.20310.2.152.203
10310.2.152.204/3110.2.152.204 – 10.2.152.20510.2.152.205
10410.2.152.206/3110.2.152.206 – 10.2.152.20710.2.152.207
10510.2.152.208/3110.2.152.208 – 10.2.152.20910.2.152.209
10610.2.152.210/3110.2.152.210 – 10.2.152.21110.2.152.211
10710.2.152.212/3110.2.152.212 – 10.2.152.21310.2.152.213
10810.2.152.214/3110.2.152.214 – 10.2.152.21510.2.152.215
10910.2.152.216/3110.2.152.216 – 10.2.152.21710.2.152.217
11010.2.152.218/3110.2.152.218 – 10.2.152.21910.2.152.219
11110.2.152.220/3110.2.152.220 – 10.2.152.22110.2.152.221
11210.2.152.222/3110.2.152.222 – 10.2.152.22310.2.152.223
11310.2.152.224/3110.2.152.224 – 10.2.152.22510.2.152.225
11410.2.152.226/3110.2.152.226 – 10.2.152.22710.2.152.227
11510.2.152.228/3110.2.152.228 – 10.2.152.22910.2.152.229
11610.2.152.230/3110.2.152.230 – 10.2.152.23110.2.152.231
11710.2.152.232/3110.2.152.232 – 10.2.152.23310.2.152.233
11810.2.152.234/3110.2.152.234 – 10.2.152.23510.2.152.235
11910.2.152.236/3110.2.152.236 – 10.2.152.23710.2.152.237
12010.2.152.238/3110.2.152.238 – 10.2.152.23910.2.152.239
12110.2.152.240/3110.2.152.240 – 10.2.152.24110.2.152.241
12210.2.152.242/3110.2.152.242 – 10.2.152.24310.2.152.243
12310.2.152.244/3110.2.152.244 – 10.2.152.24510.2.152.245
12410.2.152.246/3110.2.152.246 – 10.2.152.24710.2.152.247
12510.2.152.248/3110.2.152.248 – 10.2.152.24910.2.152.249
12610.2.152.250/3110.2.152.250 – 10.2.152.25110.2.152.251
12710.2.152.252/3110.2.152.252 – 10.2.152.25310.2.152.253
12810.2.152.254/3110.2.152.254 – 10.2.152.25510.2.152.255
12910.2.153.0/3110.2.153.0 – 10.2.153.110.2.153.1
13010.2.153.2/3110.2.153.2 – 10.2.153.310.2.153.3
13110.2.153.4/3110.2.153.4 – 10.2.153.510.2.153.5
13210.2.153.6/3110.2.153.6 – 10.2.153.710.2.153.7
13310.2.153.8/3110.2.153.8 – 10.2.153.910.2.153.9
13410.2.153.10/3110.2.153.10 – 10.2.153.1110.2.153.11
13510.2.153.12/3110.2.153.12 – 10.2.153.1310.2.153.13
13610.2.153.14/3110.2.153.14 – 10.2.153.1510.2.153.15
13710.2.153.16/3110.2.153.16 – 10.2.153.1710.2.153.17
13810.2.153.18/3110.2.153.18 – 10.2.153.1910.2.153.19
13910.2.153.20/3110.2.153.20 – 10.2.153.2110.2.153.21
14010.2.153.22/3110.2.153.22 – 10.2.153.2310.2.153.23
14110.2.153.24/3110.2.153.24 – 10.2.153.2510.2.153.25
14210.2.153.26/3110.2.153.26 – 10.2.153.2710.2.153.27
14310.2.153.28/3110.2.153.28 – 10.2.153.2910.2.153.29
14410.2.153.30/3110.2.153.30 – 10.2.153.3110.2.153.31
14510.2.153.32/3110.2.153.32 – 10.2.153.3310.2.153.33
14610.2.153.34/3110.2.153.34 – 10.2.153.3510.2.153.35
14710.2.153.36/3110.2.153.36 – 10.2.153.3710.2.153.37
14810.2.153.38/3110.2.153.38 – 10.2.153.3910.2.153.39
14910.2.153.40/3110.2.153.40 – 10.2.153.4110.2.153.41
15010.2.153.42/3110.2.153.42 – 10.2.153.4310.2.153.43
15110.2.153.44/3110.2.153.44 – 10.2.153.4510.2.153.45
15210.2.153.46/3110.2.153.46 – 10.2.153.4710.2.153.47
15310.2.153.48/3110.2.153.48 – 10.2.153.4910.2.153.49
15410.2.153.50/3110.2.153.50 – 10.2.153.5110.2.153.51
15510.2.153.52/3110.2.153.52 – 10.2.153.5310.2.153.53
15610.2.153.54/3110.2.153.54 – 10.2.153.5510.2.153.55
15710.2.153.56/3110.2.153.56 – 10.2.153.5710.2.153.57
15810.2.153.58/3110.2.153.58 – 10.2.153.5910.2.153.59
15910.2.153.60/3110.2.153.60 – 10.2.153.6110.2.153.61
16010.2.153.62/3110.2.153.62 – 10.2.153.6310.2.153.63
16110.2.153.64/3110.2.153.64 – 10.2.153.6510.2.153.65
16210.2.153.66/3110.2.153.66 – 10.2.153.6710.2.153.67
16310.2.153.68/3110.2.153.68 – 10.2.153.6910.2.153.69
16410.2.153.70/3110.2.153.70 – 10.2.153.7110.2.153.71
16510.2.153.72/3110.2.153.72 – 10.2.153.7310.2.153.73
16610.2.153.74/3110.2.153.74 – 10.2.153.7510.2.153.75
16710.2.153.76/3110.2.153.76 – 10.2.153.7710.2.153.77
16810.2.153.78/3110.2.153.78 – 10.2.153.7910.2.153.79
16910.2.153.80/3110.2.153.80 – 10.2.153.8110.2.153.81
17010.2.153.82/3110.2.153.82 – 10.2.153.8310.2.153.83
17110.2.153.84/3110.2.153.84 – 10.2.153.8510.2.153.85
17210.2.153.86/3110.2.153.86 – 10.2.153.8710.2.153.87
17310.2.153.88/3110.2.153.88 – 10.2.153.8910.2.153.89
17410.2.153.90/3110.2.153.90 – 10.2.153.9110.2.153.91
17510.2.153.92/3110.2.153.92 – 10.2.153.9310.2.153.93
17610.2.153.94/3110.2.153.94 – 10.2.153.9510.2.153.95
17710.2.153.96/3110.2.153.96 – 10.2.153.9710.2.153.97
17810.2.153.98/3110.2.153.98 – 10.2.153.9910.2.153.99
17910.2.153.100/3110.2.153.100 – 10.2.153.10110.2.153.101
18010.2.153.102/3110.2.153.102 – 10.2.153.10310.2.153.103
18110.2.153.104/3110.2.153.104 – 10.2.153.10510.2.153.105
18210.2.153.106/3110.2.153.106 – 10.2.153.10710.2.153.107
18310.2.153.108/3110.2.153.108 – 10.2.153.10910.2.153.109
18410.2.153.110/3110.2.153.110 – 10.2.153.11110.2.153.111
18510.2.153.112/3110.2.153.112 – 10.2.153.11310.2.153.113
18610.2.153.114/3110.2.153.114 – 10.2.153.11510.2.153.115
18710.2.153.116/3110.2.153.116 – 10.2.153.11710.2.153.117
18810.2.153.118/3110.2.153.118 – 10.2.153.11910.2.153.119
18910.2.153.120/3110.2.153.120 – 10.2.153.12110.2.153.121
19010.2.153.122/3110.2.153.122 – 10.2.153.12310.2.153.123
19110.2.153.124/3110.2.153.124 – 10.2.153.12510.2.153.125
19210.2.153.126/3110.2.153.126 – 10.2.153.12710.2.153.127
19310.2.153.128/3110.2.153.128 – 10.2.153.12910.2.153.129
19410.2.153.130/3110.2.153.130 – 10.2.153.13110.2.153.131
19510.2.153.132/3110.2.153.132 – 10.2.153.13310.2.153.133
19610.2.153.134/3110.2.153.134 – 10.2.153.13510.2.153.135
19710.2.153.136/3110.2.153.136 – 10.2.153.13710.2.153.137
19810.2.153.138/3110.2.153.138 – 10.2.153.13910.2.153.139
19910.2.153.140/3110.2.153.140 – 10.2.153.14110.2.153.141
20010.2.153.142/3110.2.153.142 – 10.2.153.14310.2.153.143
20110.2.153.144/3110.2.153.144 – 10.2.153.14510.2.153.145
20210.2.153.146/3110.2.153.146 – 10.2.153.14710.2.153.147
20310.2.153.148/3110.2.153.148 – 10.2.153.14910.2.153.149
20410.2.153.150/3110.2.153.150 – 10.2.153.15110.2.153.151
20510.2.153.152/3110.2.153.152 – 10.2.153.15310.2.153.153
20610.2.153.154/3110.2.153.154 – 10.2.153.15510.2.153.155
20710.2.153.156/3110.2.153.156 – 10.2.153.15710.2.153.157
20810.2.153.158/3110.2.153.158 – 10.2.153.15910.2.153.159
20910.2.153.160/3110.2.153.160 – 10.2.153.16110.2.153.161
21010.2.153.162/3110.2.153.162 – 10.2.153.16310.2.153.163
21110.2.153.164/3110.2.153.164 – 10.2.153.16510.2.153.165
21210.2.153.166/3110.2.153.166 – 10.2.153.16710.2.153.167
21310.2.153.168/3110.2.153.168 – 10.2.153.16910.2.153.169
21410.2.153.170/3110.2.153.170 – 10.2.153.17110.2.153.171
21510.2.153.172/3110.2.153.172 – 10.2.153.17310.2.153.173
21610.2.153.174/3110.2.153.174 – 10.2.153.17510.2.153.175
21710.2.153.176/3110.2.153.176 – 10.2.153.17710.2.153.177
21810.2.153.178/3110.2.153.178 – 10.2.153.17910.2.153.179
21910.2.153.180/3110.2.153.180 – 10.2.153.18110.2.153.181
22010.2.153.182/3110.2.153.182 – 10.2.153.18310.2.153.183
22110.2.153.184/3110.2.153.184 – 10.2.153.18510.2.153.185
22210.2.153.186/3110.2.153.186 – 10.2.153.18710.2.153.187
22310.2.153.188/3110.2.153.188 – 10.2.153.18910.2.153.189
22410.2.153.190/3110.2.153.190 – 10.2.153.19110.2.153.191
22510.2.153.192/3110.2.153.192 – 10.2.153.19310.2.153.193
22610.2.153.194/3110.2.153.194 – 10.2.153.19510.2.153.195
22710.2.153.196/3110.2.153.196 – 10.2.153.19710.2.153.197
22810.2.153.198/3110.2.153.198 – 10.2.153.19910.2.153.199
22910.2.153.200/3110.2.153.200 – 10.2.153.20110.2.153.201
23010.2.153.202/3110.2.153.202 – 10.2.153.20310.2.153.203
23110.2.153.204/3110.2.153.204 – 10.2.153.20510.2.153.205
23210.2.153.206/3110.2.153.206 – 10.2.153.20710.2.153.207
23310.2.153.208/3110.2.153.208 – 10.2.153.20910.2.153.209
23410.2.153.210/3110.2.153.210 – 10.2.153.21110.2.153.211
23510.2.153.212/3110.2.153.212 – 10.2.153.21310.2.153.213
23610.2.153.214/3110.2.153.214 – 10.2.153.21510.2.153.215
23710.2.153.216/3110.2.153.216 – 10.2.153.21710.2.153.217
23810.2.153.218/3110.2.153.218 – 10.2.153.21910.2.153.219
23910.2.153.220/3110.2.153.220 – 10.2.153.22110.2.153.221
24010.2.153.222/3110.2.153.222 – 10.2.153.22310.2.153.223
24110.2.153.224/3110.2.153.224 – 10.2.153.22510.2.153.225
24210.2.153.226/3110.2.153.226 – 10.2.153.22710.2.153.227
24310.2.153.228/3110.2.153.228 – 10.2.153.22910.2.153.229
24410.2.153.230/3110.2.153.230 – 10.2.153.23110.2.153.231
24510.2.153.232/3110.2.153.232 – 10.2.153.23310.2.153.233
24610.2.153.234/3110.2.153.234 – 10.2.153.23510.2.153.235
24710.2.153.236/3110.2.153.236 – 10.2.153.23710.2.153.237
24810.2.153.238/3110.2.153.238 – 10.2.153.23910.2.153.239
24910.2.153.240/3110.2.153.240 – 10.2.153.24110.2.153.241
25010.2.153.242/3110.2.153.242 – 10.2.153.24310.2.153.243
25110.2.153.244/3110.2.153.244 – 10.2.153.24510.2.153.245
25210.2.153.246/3110.2.153.246 – 10.2.153.24710.2.153.247
25310.2.153.248/3110.2.153.248 – 10.2.153.24910.2.153.249
25410.2.153.250/3110.2.153.250 – 10.2.153.25110.2.153.251
25510.2.153.252/3110.2.153.252 – 10.2.153.25310.2.153.253
25610.2.153.254/3110.2.153.254 – 10.2.153.25510.2.153.255

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 →