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)10.7.248.0/21
network10.7.248.0/21
broadcast10.7.255.255
first host10.7.248.1
last host10.7.255.254
subnet mask255.255.248.0
wildcard0.0.7.255
addresses2,048
usable hosts2,046
classA
ipcalc 10.7.248.0/21
address00001010.00000111.11111000.00000000
subnet mask11111111.11111111.11111000.00000000
network00001010.00000111.11111000.00000000
broadcast00001010.00000111.11111111.11111111
green = network part, grey = host part
hex0x0a07f800
decimal168294400
reverse dns0.248.7.10.in-addr.arpa
ipv4-mapped::ffff:a07:f800

/21 split into /31 · 1,024 subnets

close ×
#networkhost rangebroadcast
110.7.248.0/3110.7.248.0 – 10.7.248.110.7.248.1
210.7.248.2/3110.7.248.2 – 10.7.248.310.7.248.3
310.7.248.4/3110.7.248.4 – 10.7.248.510.7.248.5
410.7.248.6/3110.7.248.6 – 10.7.248.710.7.248.7
510.7.248.8/3110.7.248.8 – 10.7.248.910.7.248.9
610.7.248.10/3110.7.248.10 – 10.7.248.1110.7.248.11
710.7.248.12/3110.7.248.12 – 10.7.248.1310.7.248.13
810.7.248.14/3110.7.248.14 – 10.7.248.1510.7.248.15
910.7.248.16/3110.7.248.16 – 10.7.248.1710.7.248.17
1010.7.248.18/3110.7.248.18 – 10.7.248.1910.7.248.19
1110.7.248.20/3110.7.248.20 – 10.7.248.2110.7.248.21
1210.7.248.22/3110.7.248.22 – 10.7.248.2310.7.248.23
1310.7.248.24/3110.7.248.24 – 10.7.248.2510.7.248.25
1410.7.248.26/3110.7.248.26 – 10.7.248.2710.7.248.27
1510.7.248.28/3110.7.248.28 – 10.7.248.2910.7.248.29
1610.7.248.30/3110.7.248.30 – 10.7.248.3110.7.248.31
1710.7.248.32/3110.7.248.32 – 10.7.248.3310.7.248.33
1810.7.248.34/3110.7.248.34 – 10.7.248.3510.7.248.35
1910.7.248.36/3110.7.248.36 – 10.7.248.3710.7.248.37
2010.7.248.38/3110.7.248.38 – 10.7.248.3910.7.248.39
2110.7.248.40/3110.7.248.40 – 10.7.248.4110.7.248.41
2210.7.248.42/3110.7.248.42 – 10.7.248.4310.7.248.43
2310.7.248.44/3110.7.248.44 – 10.7.248.4510.7.248.45
2410.7.248.46/3110.7.248.46 – 10.7.248.4710.7.248.47
2510.7.248.48/3110.7.248.48 – 10.7.248.4910.7.248.49
2610.7.248.50/3110.7.248.50 – 10.7.248.5110.7.248.51
2710.7.248.52/3110.7.248.52 – 10.7.248.5310.7.248.53
2810.7.248.54/3110.7.248.54 – 10.7.248.5510.7.248.55
2910.7.248.56/3110.7.248.56 – 10.7.248.5710.7.248.57
3010.7.248.58/3110.7.248.58 – 10.7.248.5910.7.248.59
3110.7.248.60/3110.7.248.60 – 10.7.248.6110.7.248.61
3210.7.248.62/3110.7.248.62 – 10.7.248.6310.7.248.63
3310.7.248.64/3110.7.248.64 – 10.7.248.6510.7.248.65
3410.7.248.66/3110.7.248.66 – 10.7.248.6710.7.248.67
3510.7.248.68/3110.7.248.68 – 10.7.248.6910.7.248.69
3610.7.248.70/3110.7.248.70 – 10.7.248.7110.7.248.71
3710.7.248.72/3110.7.248.72 – 10.7.248.7310.7.248.73
3810.7.248.74/3110.7.248.74 – 10.7.248.7510.7.248.75
3910.7.248.76/3110.7.248.76 – 10.7.248.7710.7.248.77
4010.7.248.78/3110.7.248.78 – 10.7.248.7910.7.248.79
4110.7.248.80/3110.7.248.80 – 10.7.248.8110.7.248.81
4210.7.248.82/3110.7.248.82 – 10.7.248.8310.7.248.83
4310.7.248.84/3110.7.248.84 – 10.7.248.8510.7.248.85
4410.7.248.86/3110.7.248.86 – 10.7.248.8710.7.248.87
4510.7.248.88/3110.7.248.88 – 10.7.248.8910.7.248.89
4610.7.248.90/3110.7.248.90 – 10.7.248.9110.7.248.91
4710.7.248.92/3110.7.248.92 – 10.7.248.9310.7.248.93
4810.7.248.94/3110.7.248.94 – 10.7.248.9510.7.248.95
4910.7.248.96/3110.7.248.96 – 10.7.248.9710.7.248.97
5010.7.248.98/3110.7.248.98 – 10.7.248.9910.7.248.99
5110.7.248.100/3110.7.248.100 – 10.7.248.10110.7.248.101
5210.7.248.102/3110.7.248.102 – 10.7.248.10310.7.248.103
5310.7.248.104/3110.7.248.104 – 10.7.248.10510.7.248.105
5410.7.248.106/3110.7.248.106 – 10.7.248.10710.7.248.107
5510.7.248.108/3110.7.248.108 – 10.7.248.10910.7.248.109
5610.7.248.110/3110.7.248.110 – 10.7.248.11110.7.248.111
5710.7.248.112/3110.7.248.112 – 10.7.248.11310.7.248.113
5810.7.248.114/3110.7.248.114 – 10.7.248.11510.7.248.115
5910.7.248.116/3110.7.248.116 – 10.7.248.11710.7.248.117
6010.7.248.118/3110.7.248.118 – 10.7.248.11910.7.248.119
6110.7.248.120/3110.7.248.120 – 10.7.248.12110.7.248.121
6210.7.248.122/3110.7.248.122 – 10.7.248.12310.7.248.123
6310.7.248.124/3110.7.248.124 – 10.7.248.12510.7.248.125
6410.7.248.126/3110.7.248.126 – 10.7.248.12710.7.248.127
6510.7.248.128/3110.7.248.128 – 10.7.248.12910.7.248.129
6610.7.248.130/3110.7.248.130 – 10.7.248.13110.7.248.131
6710.7.248.132/3110.7.248.132 – 10.7.248.13310.7.248.133
6810.7.248.134/3110.7.248.134 – 10.7.248.13510.7.248.135
6910.7.248.136/3110.7.248.136 – 10.7.248.13710.7.248.137
7010.7.248.138/3110.7.248.138 – 10.7.248.13910.7.248.139
7110.7.248.140/3110.7.248.140 – 10.7.248.14110.7.248.141
7210.7.248.142/3110.7.248.142 – 10.7.248.14310.7.248.143
7310.7.248.144/3110.7.248.144 – 10.7.248.14510.7.248.145
7410.7.248.146/3110.7.248.146 – 10.7.248.14710.7.248.147
7510.7.248.148/3110.7.248.148 – 10.7.248.14910.7.248.149
7610.7.248.150/3110.7.248.150 – 10.7.248.15110.7.248.151
7710.7.248.152/3110.7.248.152 – 10.7.248.15310.7.248.153
7810.7.248.154/3110.7.248.154 – 10.7.248.15510.7.248.155
7910.7.248.156/3110.7.248.156 – 10.7.248.15710.7.248.157
8010.7.248.158/3110.7.248.158 – 10.7.248.15910.7.248.159
8110.7.248.160/3110.7.248.160 – 10.7.248.16110.7.248.161
8210.7.248.162/3110.7.248.162 – 10.7.248.16310.7.248.163
8310.7.248.164/3110.7.248.164 – 10.7.248.16510.7.248.165
8410.7.248.166/3110.7.248.166 – 10.7.248.16710.7.248.167
8510.7.248.168/3110.7.248.168 – 10.7.248.16910.7.248.169
8610.7.248.170/3110.7.248.170 – 10.7.248.17110.7.248.171
8710.7.248.172/3110.7.248.172 – 10.7.248.17310.7.248.173
8810.7.248.174/3110.7.248.174 – 10.7.248.17510.7.248.175
8910.7.248.176/3110.7.248.176 – 10.7.248.17710.7.248.177
9010.7.248.178/3110.7.248.178 – 10.7.248.17910.7.248.179
9110.7.248.180/3110.7.248.180 – 10.7.248.18110.7.248.181
9210.7.248.182/3110.7.248.182 – 10.7.248.18310.7.248.183
9310.7.248.184/3110.7.248.184 – 10.7.248.18510.7.248.185
9410.7.248.186/3110.7.248.186 – 10.7.248.18710.7.248.187
9510.7.248.188/3110.7.248.188 – 10.7.248.18910.7.248.189
9610.7.248.190/3110.7.248.190 – 10.7.248.19110.7.248.191
9710.7.248.192/3110.7.248.192 – 10.7.248.19310.7.248.193
9810.7.248.194/3110.7.248.194 – 10.7.248.19510.7.248.195
9910.7.248.196/3110.7.248.196 – 10.7.248.19710.7.248.197
10010.7.248.198/3110.7.248.198 – 10.7.248.19910.7.248.199
10110.7.248.200/3110.7.248.200 – 10.7.248.20110.7.248.201
10210.7.248.202/3110.7.248.202 – 10.7.248.20310.7.248.203
10310.7.248.204/3110.7.248.204 – 10.7.248.20510.7.248.205
10410.7.248.206/3110.7.248.206 – 10.7.248.20710.7.248.207
10510.7.248.208/3110.7.248.208 – 10.7.248.20910.7.248.209
10610.7.248.210/3110.7.248.210 – 10.7.248.21110.7.248.211
10710.7.248.212/3110.7.248.212 – 10.7.248.21310.7.248.213
10810.7.248.214/3110.7.248.214 – 10.7.248.21510.7.248.215
10910.7.248.216/3110.7.248.216 – 10.7.248.21710.7.248.217
11010.7.248.218/3110.7.248.218 – 10.7.248.21910.7.248.219
11110.7.248.220/3110.7.248.220 – 10.7.248.22110.7.248.221
11210.7.248.222/3110.7.248.222 – 10.7.248.22310.7.248.223
11310.7.248.224/3110.7.248.224 – 10.7.248.22510.7.248.225
11410.7.248.226/3110.7.248.226 – 10.7.248.22710.7.248.227
11510.7.248.228/3110.7.248.228 – 10.7.248.22910.7.248.229
11610.7.248.230/3110.7.248.230 – 10.7.248.23110.7.248.231
11710.7.248.232/3110.7.248.232 – 10.7.248.23310.7.248.233
11810.7.248.234/3110.7.248.234 – 10.7.248.23510.7.248.235
11910.7.248.236/3110.7.248.236 – 10.7.248.23710.7.248.237
12010.7.248.238/3110.7.248.238 – 10.7.248.23910.7.248.239
12110.7.248.240/3110.7.248.240 – 10.7.248.24110.7.248.241
12210.7.248.242/3110.7.248.242 – 10.7.248.24310.7.248.243
12310.7.248.244/3110.7.248.244 – 10.7.248.24510.7.248.245
12410.7.248.246/3110.7.248.246 – 10.7.248.24710.7.248.247
12510.7.248.248/3110.7.248.248 – 10.7.248.24910.7.248.249
12610.7.248.250/3110.7.248.250 – 10.7.248.25110.7.248.251
12710.7.248.252/3110.7.248.252 – 10.7.248.25310.7.248.253
12810.7.248.254/3110.7.248.254 – 10.7.248.25510.7.248.255
12910.7.249.0/3110.7.249.0 – 10.7.249.110.7.249.1
13010.7.249.2/3110.7.249.2 – 10.7.249.310.7.249.3
13110.7.249.4/3110.7.249.4 – 10.7.249.510.7.249.5
13210.7.249.6/3110.7.249.6 – 10.7.249.710.7.249.7
13310.7.249.8/3110.7.249.8 – 10.7.249.910.7.249.9
13410.7.249.10/3110.7.249.10 – 10.7.249.1110.7.249.11
13510.7.249.12/3110.7.249.12 – 10.7.249.1310.7.249.13
13610.7.249.14/3110.7.249.14 – 10.7.249.1510.7.249.15
13710.7.249.16/3110.7.249.16 – 10.7.249.1710.7.249.17
13810.7.249.18/3110.7.249.18 – 10.7.249.1910.7.249.19
13910.7.249.20/3110.7.249.20 – 10.7.249.2110.7.249.21
14010.7.249.22/3110.7.249.22 – 10.7.249.2310.7.249.23
14110.7.249.24/3110.7.249.24 – 10.7.249.2510.7.249.25
14210.7.249.26/3110.7.249.26 – 10.7.249.2710.7.249.27
14310.7.249.28/3110.7.249.28 – 10.7.249.2910.7.249.29
14410.7.249.30/3110.7.249.30 – 10.7.249.3110.7.249.31
14510.7.249.32/3110.7.249.32 – 10.7.249.3310.7.249.33
14610.7.249.34/3110.7.249.34 – 10.7.249.3510.7.249.35
14710.7.249.36/3110.7.249.36 – 10.7.249.3710.7.249.37
14810.7.249.38/3110.7.249.38 – 10.7.249.3910.7.249.39
14910.7.249.40/3110.7.249.40 – 10.7.249.4110.7.249.41
15010.7.249.42/3110.7.249.42 – 10.7.249.4310.7.249.43
15110.7.249.44/3110.7.249.44 – 10.7.249.4510.7.249.45
15210.7.249.46/3110.7.249.46 – 10.7.249.4710.7.249.47
15310.7.249.48/3110.7.249.48 – 10.7.249.4910.7.249.49
15410.7.249.50/3110.7.249.50 – 10.7.249.5110.7.249.51
15510.7.249.52/3110.7.249.52 – 10.7.249.5310.7.249.53
15610.7.249.54/3110.7.249.54 – 10.7.249.5510.7.249.55
15710.7.249.56/3110.7.249.56 – 10.7.249.5710.7.249.57
15810.7.249.58/3110.7.249.58 – 10.7.249.5910.7.249.59
15910.7.249.60/3110.7.249.60 – 10.7.249.6110.7.249.61
16010.7.249.62/3110.7.249.62 – 10.7.249.6310.7.249.63
16110.7.249.64/3110.7.249.64 – 10.7.249.6510.7.249.65
16210.7.249.66/3110.7.249.66 – 10.7.249.6710.7.249.67
16310.7.249.68/3110.7.249.68 – 10.7.249.6910.7.249.69
16410.7.249.70/3110.7.249.70 – 10.7.249.7110.7.249.71
16510.7.249.72/3110.7.249.72 – 10.7.249.7310.7.249.73
16610.7.249.74/3110.7.249.74 – 10.7.249.7510.7.249.75
16710.7.249.76/3110.7.249.76 – 10.7.249.7710.7.249.77
16810.7.249.78/3110.7.249.78 – 10.7.249.7910.7.249.79
16910.7.249.80/3110.7.249.80 – 10.7.249.8110.7.249.81
17010.7.249.82/3110.7.249.82 – 10.7.249.8310.7.249.83
17110.7.249.84/3110.7.249.84 – 10.7.249.8510.7.249.85
17210.7.249.86/3110.7.249.86 – 10.7.249.8710.7.249.87
17310.7.249.88/3110.7.249.88 – 10.7.249.8910.7.249.89
17410.7.249.90/3110.7.249.90 – 10.7.249.9110.7.249.91
17510.7.249.92/3110.7.249.92 – 10.7.249.9310.7.249.93
17610.7.249.94/3110.7.249.94 – 10.7.249.9510.7.249.95
17710.7.249.96/3110.7.249.96 – 10.7.249.9710.7.249.97
17810.7.249.98/3110.7.249.98 – 10.7.249.9910.7.249.99
17910.7.249.100/3110.7.249.100 – 10.7.249.10110.7.249.101
18010.7.249.102/3110.7.249.102 – 10.7.249.10310.7.249.103
18110.7.249.104/3110.7.249.104 – 10.7.249.10510.7.249.105
18210.7.249.106/3110.7.249.106 – 10.7.249.10710.7.249.107
18310.7.249.108/3110.7.249.108 – 10.7.249.10910.7.249.109
18410.7.249.110/3110.7.249.110 – 10.7.249.11110.7.249.111
18510.7.249.112/3110.7.249.112 – 10.7.249.11310.7.249.113
18610.7.249.114/3110.7.249.114 – 10.7.249.11510.7.249.115
18710.7.249.116/3110.7.249.116 – 10.7.249.11710.7.249.117
18810.7.249.118/3110.7.249.118 – 10.7.249.11910.7.249.119
18910.7.249.120/3110.7.249.120 – 10.7.249.12110.7.249.121
19010.7.249.122/3110.7.249.122 – 10.7.249.12310.7.249.123
19110.7.249.124/3110.7.249.124 – 10.7.249.12510.7.249.125
19210.7.249.126/3110.7.249.126 – 10.7.249.12710.7.249.127
19310.7.249.128/3110.7.249.128 – 10.7.249.12910.7.249.129
19410.7.249.130/3110.7.249.130 – 10.7.249.13110.7.249.131
19510.7.249.132/3110.7.249.132 – 10.7.249.13310.7.249.133
19610.7.249.134/3110.7.249.134 – 10.7.249.13510.7.249.135
19710.7.249.136/3110.7.249.136 – 10.7.249.13710.7.249.137
19810.7.249.138/3110.7.249.138 – 10.7.249.13910.7.249.139
19910.7.249.140/3110.7.249.140 – 10.7.249.14110.7.249.141
20010.7.249.142/3110.7.249.142 – 10.7.249.14310.7.249.143
20110.7.249.144/3110.7.249.144 – 10.7.249.14510.7.249.145
20210.7.249.146/3110.7.249.146 – 10.7.249.14710.7.249.147
20310.7.249.148/3110.7.249.148 – 10.7.249.14910.7.249.149
20410.7.249.150/3110.7.249.150 – 10.7.249.15110.7.249.151
20510.7.249.152/3110.7.249.152 – 10.7.249.15310.7.249.153
20610.7.249.154/3110.7.249.154 – 10.7.249.15510.7.249.155
20710.7.249.156/3110.7.249.156 – 10.7.249.15710.7.249.157
20810.7.249.158/3110.7.249.158 – 10.7.249.15910.7.249.159
20910.7.249.160/3110.7.249.160 – 10.7.249.16110.7.249.161
21010.7.249.162/3110.7.249.162 – 10.7.249.16310.7.249.163
21110.7.249.164/3110.7.249.164 – 10.7.249.16510.7.249.165
21210.7.249.166/3110.7.249.166 – 10.7.249.16710.7.249.167
21310.7.249.168/3110.7.249.168 – 10.7.249.16910.7.249.169
21410.7.249.170/3110.7.249.170 – 10.7.249.17110.7.249.171
21510.7.249.172/3110.7.249.172 – 10.7.249.17310.7.249.173
21610.7.249.174/3110.7.249.174 – 10.7.249.17510.7.249.175
21710.7.249.176/3110.7.249.176 – 10.7.249.17710.7.249.177
21810.7.249.178/3110.7.249.178 – 10.7.249.17910.7.249.179
21910.7.249.180/3110.7.249.180 – 10.7.249.18110.7.249.181
22010.7.249.182/3110.7.249.182 – 10.7.249.18310.7.249.183
22110.7.249.184/3110.7.249.184 – 10.7.249.18510.7.249.185
22210.7.249.186/3110.7.249.186 – 10.7.249.18710.7.249.187
22310.7.249.188/3110.7.249.188 – 10.7.249.18910.7.249.189
22410.7.249.190/3110.7.249.190 – 10.7.249.19110.7.249.191
22510.7.249.192/3110.7.249.192 – 10.7.249.19310.7.249.193
22610.7.249.194/3110.7.249.194 – 10.7.249.19510.7.249.195
22710.7.249.196/3110.7.249.196 – 10.7.249.19710.7.249.197
22810.7.249.198/3110.7.249.198 – 10.7.249.19910.7.249.199
22910.7.249.200/3110.7.249.200 – 10.7.249.20110.7.249.201
23010.7.249.202/3110.7.249.202 – 10.7.249.20310.7.249.203
23110.7.249.204/3110.7.249.204 – 10.7.249.20510.7.249.205
23210.7.249.206/3110.7.249.206 – 10.7.249.20710.7.249.207
23310.7.249.208/3110.7.249.208 – 10.7.249.20910.7.249.209
23410.7.249.210/3110.7.249.210 – 10.7.249.21110.7.249.211
23510.7.249.212/3110.7.249.212 – 10.7.249.21310.7.249.213
23610.7.249.214/3110.7.249.214 – 10.7.249.21510.7.249.215
23710.7.249.216/3110.7.249.216 – 10.7.249.21710.7.249.217
23810.7.249.218/3110.7.249.218 – 10.7.249.21910.7.249.219
23910.7.249.220/3110.7.249.220 – 10.7.249.22110.7.249.221
24010.7.249.222/3110.7.249.222 – 10.7.249.22310.7.249.223
24110.7.249.224/3110.7.249.224 – 10.7.249.22510.7.249.225
24210.7.249.226/3110.7.249.226 – 10.7.249.22710.7.249.227
24310.7.249.228/3110.7.249.228 – 10.7.249.22910.7.249.229
24410.7.249.230/3110.7.249.230 – 10.7.249.23110.7.249.231
24510.7.249.232/3110.7.249.232 – 10.7.249.23310.7.249.233
24610.7.249.234/3110.7.249.234 – 10.7.249.23510.7.249.235
24710.7.249.236/3110.7.249.236 – 10.7.249.23710.7.249.237
24810.7.249.238/3110.7.249.238 – 10.7.249.23910.7.249.239
24910.7.249.240/3110.7.249.240 – 10.7.249.24110.7.249.241
25010.7.249.242/3110.7.249.242 – 10.7.249.24310.7.249.243
25110.7.249.244/3110.7.249.244 – 10.7.249.24510.7.249.245
25210.7.249.246/3110.7.249.246 – 10.7.249.24710.7.249.247
25310.7.249.248/3110.7.249.248 – 10.7.249.24910.7.249.249
25410.7.249.250/3110.7.249.250 – 10.7.249.25110.7.249.251
25510.7.249.252/3110.7.249.252 – 10.7.249.25310.7.249.253
25610.7.249.254/3110.7.249.254 – 10.7.249.25510.7.249.255

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 →