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)10.40.0.0/17
network10.40.0.0/17
broadcast10.40.127.255
first host10.40.0.1
last host10.40.127.254
subnet mask255.255.128.0
wildcard0.0.127.255
addresses32,768
usable hosts32,766
classA
ipcalc 10.40.0.0/17
address00001010.00101000.00000000.00000000
subnet mask11111111.11111111.10000000.00000000
network00001010.00101000.00000000.00000000
broadcast00001010.00101000.01111111.11111111
green = network part, grey = host part
hex0x0a280000
decimal170393600
reverse dns0.0.40.10.in-addr.arpa
ipv4-mapped::ffff:a28:0

/17 split into /31 · 16,384 subnets

close ×
#networkhost rangebroadcast
110.40.0.0/3110.40.0.0 – 10.40.0.110.40.0.1
210.40.0.2/3110.40.0.2 – 10.40.0.310.40.0.3
310.40.0.4/3110.40.0.4 – 10.40.0.510.40.0.5
410.40.0.6/3110.40.0.6 – 10.40.0.710.40.0.7
510.40.0.8/3110.40.0.8 – 10.40.0.910.40.0.9
610.40.0.10/3110.40.0.10 – 10.40.0.1110.40.0.11
710.40.0.12/3110.40.0.12 – 10.40.0.1310.40.0.13
810.40.0.14/3110.40.0.14 – 10.40.0.1510.40.0.15
910.40.0.16/3110.40.0.16 – 10.40.0.1710.40.0.17
1010.40.0.18/3110.40.0.18 – 10.40.0.1910.40.0.19
1110.40.0.20/3110.40.0.20 – 10.40.0.2110.40.0.21
1210.40.0.22/3110.40.0.22 – 10.40.0.2310.40.0.23
1310.40.0.24/3110.40.0.24 – 10.40.0.2510.40.0.25
1410.40.0.26/3110.40.0.26 – 10.40.0.2710.40.0.27
1510.40.0.28/3110.40.0.28 – 10.40.0.2910.40.0.29
1610.40.0.30/3110.40.0.30 – 10.40.0.3110.40.0.31
1710.40.0.32/3110.40.0.32 – 10.40.0.3310.40.0.33
1810.40.0.34/3110.40.0.34 – 10.40.0.3510.40.0.35
1910.40.0.36/3110.40.0.36 – 10.40.0.3710.40.0.37
2010.40.0.38/3110.40.0.38 – 10.40.0.3910.40.0.39
2110.40.0.40/3110.40.0.40 – 10.40.0.4110.40.0.41
2210.40.0.42/3110.40.0.42 – 10.40.0.4310.40.0.43
2310.40.0.44/3110.40.0.44 – 10.40.0.4510.40.0.45
2410.40.0.46/3110.40.0.46 – 10.40.0.4710.40.0.47
2510.40.0.48/3110.40.0.48 – 10.40.0.4910.40.0.49
2610.40.0.50/3110.40.0.50 – 10.40.0.5110.40.0.51
2710.40.0.52/3110.40.0.52 – 10.40.0.5310.40.0.53
2810.40.0.54/3110.40.0.54 – 10.40.0.5510.40.0.55
2910.40.0.56/3110.40.0.56 – 10.40.0.5710.40.0.57
3010.40.0.58/3110.40.0.58 – 10.40.0.5910.40.0.59
3110.40.0.60/3110.40.0.60 – 10.40.0.6110.40.0.61
3210.40.0.62/3110.40.0.62 – 10.40.0.6310.40.0.63
3310.40.0.64/3110.40.0.64 – 10.40.0.6510.40.0.65
3410.40.0.66/3110.40.0.66 – 10.40.0.6710.40.0.67
3510.40.0.68/3110.40.0.68 – 10.40.0.6910.40.0.69
3610.40.0.70/3110.40.0.70 – 10.40.0.7110.40.0.71
3710.40.0.72/3110.40.0.72 – 10.40.0.7310.40.0.73
3810.40.0.74/3110.40.0.74 – 10.40.0.7510.40.0.75
3910.40.0.76/3110.40.0.76 – 10.40.0.7710.40.0.77
4010.40.0.78/3110.40.0.78 – 10.40.0.7910.40.0.79
4110.40.0.80/3110.40.0.80 – 10.40.0.8110.40.0.81
4210.40.0.82/3110.40.0.82 – 10.40.0.8310.40.0.83
4310.40.0.84/3110.40.0.84 – 10.40.0.8510.40.0.85
4410.40.0.86/3110.40.0.86 – 10.40.0.8710.40.0.87
4510.40.0.88/3110.40.0.88 – 10.40.0.8910.40.0.89
4610.40.0.90/3110.40.0.90 – 10.40.0.9110.40.0.91
4710.40.0.92/3110.40.0.92 – 10.40.0.9310.40.0.93
4810.40.0.94/3110.40.0.94 – 10.40.0.9510.40.0.95
4910.40.0.96/3110.40.0.96 – 10.40.0.9710.40.0.97
5010.40.0.98/3110.40.0.98 – 10.40.0.9910.40.0.99
5110.40.0.100/3110.40.0.100 – 10.40.0.10110.40.0.101
5210.40.0.102/3110.40.0.102 – 10.40.0.10310.40.0.103
5310.40.0.104/3110.40.0.104 – 10.40.0.10510.40.0.105
5410.40.0.106/3110.40.0.106 – 10.40.0.10710.40.0.107
5510.40.0.108/3110.40.0.108 – 10.40.0.10910.40.0.109
5610.40.0.110/3110.40.0.110 – 10.40.0.11110.40.0.111
5710.40.0.112/3110.40.0.112 – 10.40.0.11310.40.0.113
5810.40.0.114/3110.40.0.114 – 10.40.0.11510.40.0.115
5910.40.0.116/3110.40.0.116 – 10.40.0.11710.40.0.117
6010.40.0.118/3110.40.0.118 – 10.40.0.11910.40.0.119
6110.40.0.120/3110.40.0.120 – 10.40.0.12110.40.0.121
6210.40.0.122/3110.40.0.122 – 10.40.0.12310.40.0.123
6310.40.0.124/3110.40.0.124 – 10.40.0.12510.40.0.125
6410.40.0.126/3110.40.0.126 – 10.40.0.12710.40.0.127
6510.40.0.128/3110.40.0.128 – 10.40.0.12910.40.0.129
6610.40.0.130/3110.40.0.130 – 10.40.0.13110.40.0.131
6710.40.0.132/3110.40.0.132 – 10.40.0.13310.40.0.133
6810.40.0.134/3110.40.0.134 – 10.40.0.13510.40.0.135
6910.40.0.136/3110.40.0.136 – 10.40.0.13710.40.0.137
7010.40.0.138/3110.40.0.138 – 10.40.0.13910.40.0.139
7110.40.0.140/3110.40.0.140 – 10.40.0.14110.40.0.141
7210.40.0.142/3110.40.0.142 – 10.40.0.14310.40.0.143
7310.40.0.144/3110.40.0.144 – 10.40.0.14510.40.0.145
7410.40.0.146/3110.40.0.146 – 10.40.0.14710.40.0.147
7510.40.0.148/3110.40.0.148 – 10.40.0.14910.40.0.149
7610.40.0.150/3110.40.0.150 – 10.40.0.15110.40.0.151
7710.40.0.152/3110.40.0.152 – 10.40.0.15310.40.0.153
7810.40.0.154/3110.40.0.154 – 10.40.0.15510.40.0.155
7910.40.0.156/3110.40.0.156 – 10.40.0.15710.40.0.157
8010.40.0.158/3110.40.0.158 – 10.40.0.15910.40.0.159
8110.40.0.160/3110.40.0.160 – 10.40.0.16110.40.0.161
8210.40.0.162/3110.40.0.162 – 10.40.0.16310.40.0.163
8310.40.0.164/3110.40.0.164 – 10.40.0.16510.40.0.165
8410.40.0.166/3110.40.0.166 – 10.40.0.16710.40.0.167
8510.40.0.168/3110.40.0.168 – 10.40.0.16910.40.0.169
8610.40.0.170/3110.40.0.170 – 10.40.0.17110.40.0.171
8710.40.0.172/3110.40.0.172 – 10.40.0.17310.40.0.173
8810.40.0.174/3110.40.0.174 – 10.40.0.17510.40.0.175
8910.40.0.176/3110.40.0.176 – 10.40.0.17710.40.0.177
9010.40.0.178/3110.40.0.178 – 10.40.0.17910.40.0.179
9110.40.0.180/3110.40.0.180 – 10.40.0.18110.40.0.181
9210.40.0.182/3110.40.0.182 – 10.40.0.18310.40.0.183
9310.40.0.184/3110.40.0.184 – 10.40.0.18510.40.0.185
9410.40.0.186/3110.40.0.186 – 10.40.0.18710.40.0.187
9510.40.0.188/3110.40.0.188 – 10.40.0.18910.40.0.189
9610.40.0.190/3110.40.0.190 – 10.40.0.19110.40.0.191
9710.40.0.192/3110.40.0.192 – 10.40.0.19310.40.0.193
9810.40.0.194/3110.40.0.194 – 10.40.0.19510.40.0.195
9910.40.0.196/3110.40.0.196 – 10.40.0.19710.40.0.197
10010.40.0.198/3110.40.0.198 – 10.40.0.19910.40.0.199
10110.40.0.200/3110.40.0.200 – 10.40.0.20110.40.0.201
10210.40.0.202/3110.40.0.202 – 10.40.0.20310.40.0.203
10310.40.0.204/3110.40.0.204 – 10.40.0.20510.40.0.205
10410.40.0.206/3110.40.0.206 – 10.40.0.20710.40.0.207
10510.40.0.208/3110.40.0.208 – 10.40.0.20910.40.0.209
10610.40.0.210/3110.40.0.210 – 10.40.0.21110.40.0.211
10710.40.0.212/3110.40.0.212 – 10.40.0.21310.40.0.213
10810.40.0.214/3110.40.0.214 – 10.40.0.21510.40.0.215
10910.40.0.216/3110.40.0.216 – 10.40.0.21710.40.0.217
11010.40.0.218/3110.40.0.218 – 10.40.0.21910.40.0.219
11110.40.0.220/3110.40.0.220 – 10.40.0.22110.40.0.221
11210.40.0.222/3110.40.0.222 – 10.40.0.22310.40.0.223
11310.40.0.224/3110.40.0.224 – 10.40.0.22510.40.0.225
11410.40.0.226/3110.40.0.226 – 10.40.0.22710.40.0.227
11510.40.0.228/3110.40.0.228 – 10.40.0.22910.40.0.229
11610.40.0.230/3110.40.0.230 – 10.40.0.23110.40.0.231
11710.40.0.232/3110.40.0.232 – 10.40.0.23310.40.0.233
11810.40.0.234/3110.40.0.234 – 10.40.0.23510.40.0.235
11910.40.0.236/3110.40.0.236 – 10.40.0.23710.40.0.237
12010.40.0.238/3110.40.0.238 – 10.40.0.23910.40.0.239
12110.40.0.240/3110.40.0.240 – 10.40.0.24110.40.0.241
12210.40.0.242/3110.40.0.242 – 10.40.0.24310.40.0.243
12310.40.0.244/3110.40.0.244 – 10.40.0.24510.40.0.245
12410.40.0.246/3110.40.0.246 – 10.40.0.24710.40.0.247
12510.40.0.248/3110.40.0.248 – 10.40.0.24910.40.0.249
12610.40.0.250/3110.40.0.250 – 10.40.0.25110.40.0.251
12710.40.0.252/3110.40.0.252 – 10.40.0.25310.40.0.253
12810.40.0.254/3110.40.0.254 – 10.40.0.25510.40.0.255
12910.40.1.0/3110.40.1.0 – 10.40.1.110.40.1.1
13010.40.1.2/3110.40.1.2 – 10.40.1.310.40.1.3
13110.40.1.4/3110.40.1.4 – 10.40.1.510.40.1.5
13210.40.1.6/3110.40.1.6 – 10.40.1.710.40.1.7
13310.40.1.8/3110.40.1.8 – 10.40.1.910.40.1.9
13410.40.1.10/3110.40.1.10 – 10.40.1.1110.40.1.11
13510.40.1.12/3110.40.1.12 – 10.40.1.1310.40.1.13
13610.40.1.14/3110.40.1.14 – 10.40.1.1510.40.1.15
13710.40.1.16/3110.40.1.16 – 10.40.1.1710.40.1.17
13810.40.1.18/3110.40.1.18 – 10.40.1.1910.40.1.19
13910.40.1.20/3110.40.1.20 – 10.40.1.2110.40.1.21
14010.40.1.22/3110.40.1.22 – 10.40.1.2310.40.1.23
14110.40.1.24/3110.40.1.24 – 10.40.1.2510.40.1.25
14210.40.1.26/3110.40.1.26 – 10.40.1.2710.40.1.27
14310.40.1.28/3110.40.1.28 – 10.40.1.2910.40.1.29
14410.40.1.30/3110.40.1.30 – 10.40.1.3110.40.1.31
14510.40.1.32/3110.40.1.32 – 10.40.1.3310.40.1.33
14610.40.1.34/3110.40.1.34 – 10.40.1.3510.40.1.35
14710.40.1.36/3110.40.1.36 – 10.40.1.3710.40.1.37
14810.40.1.38/3110.40.1.38 – 10.40.1.3910.40.1.39
14910.40.1.40/3110.40.1.40 – 10.40.1.4110.40.1.41
15010.40.1.42/3110.40.1.42 – 10.40.1.4310.40.1.43
15110.40.1.44/3110.40.1.44 – 10.40.1.4510.40.1.45
15210.40.1.46/3110.40.1.46 – 10.40.1.4710.40.1.47
15310.40.1.48/3110.40.1.48 – 10.40.1.4910.40.1.49
15410.40.1.50/3110.40.1.50 – 10.40.1.5110.40.1.51
15510.40.1.52/3110.40.1.52 – 10.40.1.5310.40.1.53
15610.40.1.54/3110.40.1.54 – 10.40.1.5510.40.1.55
15710.40.1.56/3110.40.1.56 – 10.40.1.5710.40.1.57
15810.40.1.58/3110.40.1.58 – 10.40.1.5910.40.1.59
15910.40.1.60/3110.40.1.60 – 10.40.1.6110.40.1.61
16010.40.1.62/3110.40.1.62 – 10.40.1.6310.40.1.63
16110.40.1.64/3110.40.1.64 – 10.40.1.6510.40.1.65
16210.40.1.66/3110.40.1.66 – 10.40.1.6710.40.1.67
16310.40.1.68/3110.40.1.68 – 10.40.1.6910.40.1.69
16410.40.1.70/3110.40.1.70 – 10.40.1.7110.40.1.71
16510.40.1.72/3110.40.1.72 – 10.40.1.7310.40.1.73
16610.40.1.74/3110.40.1.74 – 10.40.1.7510.40.1.75
16710.40.1.76/3110.40.1.76 – 10.40.1.7710.40.1.77
16810.40.1.78/3110.40.1.78 – 10.40.1.7910.40.1.79
16910.40.1.80/3110.40.1.80 – 10.40.1.8110.40.1.81
17010.40.1.82/3110.40.1.82 – 10.40.1.8310.40.1.83
17110.40.1.84/3110.40.1.84 – 10.40.1.8510.40.1.85
17210.40.1.86/3110.40.1.86 – 10.40.1.8710.40.1.87
17310.40.1.88/3110.40.1.88 – 10.40.1.8910.40.1.89
17410.40.1.90/3110.40.1.90 – 10.40.1.9110.40.1.91
17510.40.1.92/3110.40.1.92 – 10.40.1.9310.40.1.93
17610.40.1.94/3110.40.1.94 – 10.40.1.9510.40.1.95
17710.40.1.96/3110.40.1.96 – 10.40.1.9710.40.1.97
17810.40.1.98/3110.40.1.98 – 10.40.1.9910.40.1.99
17910.40.1.100/3110.40.1.100 – 10.40.1.10110.40.1.101
18010.40.1.102/3110.40.1.102 – 10.40.1.10310.40.1.103
18110.40.1.104/3110.40.1.104 – 10.40.1.10510.40.1.105
18210.40.1.106/3110.40.1.106 – 10.40.1.10710.40.1.107
18310.40.1.108/3110.40.1.108 – 10.40.1.10910.40.1.109
18410.40.1.110/3110.40.1.110 – 10.40.1.11110.40.1.111
18510.40.1.112/3110.40.1.112 – 10.40.1.11310.40.1.113
18610.40.1.114/3110.40.1.114 – 10.40.1.11510.40.1.115
18710.40.1.116/3110.40.1.116 – 10.40.1.11710.40.1.117
18810.40.1.118/3110.40.1.118 – 10.40.1.11910.40.1.119
18910.40.1.120/3110.40.1.120 – 10.40.1.12110.40.1.121
19010.40.1.122/3110.40.1.122 – 10.40.1.12310.40.1.123
19110.40.1.124/3110.40.1.124 – 10.40.1.12510.40.1.125
19210.40.1.126/3110.40.1.126 – 10.40.1.12710.40.1.127
19310.40.1.128/3110.40.1.128 – 10.40.1.12910.40.1.129
19410.40.1.130/3110.40.1.130 – 10.40.1.13110.40.1.131
19510.40.1.132/3110.40.1.132 – 10.40.1.13310.40.1.133
19610.40.1.134/3110.40.1.134 – 10.40.1.13510.40.1.135
19710.40.1.136/3110.40.1.136 – 10.40.1.13710.40.1.137
19810.40.1.138/3110.40.1.138 – 10.40.1.13910.40.1.139
19910.40.1.140/3110.40.1.140 – 10.40.1.14110.40.1.141
20010.40.1.142/3110.40.1.142 – 10.40.1.14310.40.1.143
20110.40.1.144/3110.40.1.144 – 10.40.1.14510.40.1.145
20210.40.1.146/3110.40.1.146 – 10.40.1.14710.40.1.147
20310.40.1.148/3110.40.1.148 – 10.40.1.14910.40.1.149
20410.40.1.150/3110.40.1.150 – 10.40.1.15110.40.1.151
20510.40.1.152/3110.40.1.152 – 10.40.1.15310.40.1.153
20610.40.1.154/3110.40.1.154 – 10.40.1.15510.40.1.155
20710.40.1.156/3110.40.1.156 – 10.40.1.15710.40.1.157
20810.40.1.158/3110.40.1.158 – 10.40.1.15910.40.1.159
20910.40.1.160/3110.40.1.160 – 10.40.1.16110.40.1.161
21010.40.1.162/3110.40.1.162 – 10.40.1.16310.40.1.163
21110.40.1.164/3110.40.1.164 – 10.40.1.16510.40.1.165
21210.40.1.166/3110.40.1.166 – 10.40.1.16710.40.1.167
21310.40.1.168/3110.40.1.168 – 10.40.1.16910.40.1.169
21410.40.1.170/3110.40.1.170 – 10.40.1.17110.40.1.171
21510.40.1.172/3110.40.1.172 – 10.40.1.17310.40.1.173
21610.40.1.174/3110.40.1.174 – 10.40.1.17510.40.1.175
21710.40.1.176/3110.40.1.176 – 10.40.1.17710.40.1.177
21810.40.1.178/3110.40.1.178 – 10.40.1.17910.40.1.179
21910.40.1.180/3110.40.1.180 – 10.40.1.18110.40.1.181
22010.40.1.182/3110.40.1.182 – 10.40.1.18310.40.1.183
22110.40.1.184/3110.40.1.184 – 10.40.1.18510.40.1.185
22210.40.1.186/3110.40.1.186 – 10.40.1.18710.40.1.187
22310.40.1.188/3110.40.1.188 – 10.40.1.18910.40.1.189
22410.40.1.190/3110.40.1.190 – 10.40.1.19110.40.1.191
22510.40.1.192/3110.40.1.192 – 10.40.1.19310.40.1.193
22610.40.1.194/3110.40.1.194 – 10.40.1.19510.40.1.195
22710.40.1.196/3110.40.1.196 – 10.40.1.19710.40.1.197
22810.40.1.198/3110.40.1.198 – 10.40.1.19910.40.1.199
22910.40.1.200/3110.40.1.200 – 10.40.1.20110.40.1.201
23010.40.1.202/3110.40.1.202 – 10.40.1.20310.40.1.203
23110.40.1.204/3110.40.1.204 – 10.40.1.20510.40.1.205
23210.40.1.206/3110.40.1.206 – 10.40.1.20710.40.1.207
23310.40.1.208/3110.40.1.208 – 10.40.1.20910.40.1.209
23410.40.1.210/3110.40.1.210 – 10.40.1.21110.40.1.211
23510.40.1.212/3110.40.1.212 – 10.40.1.21310.40.1.213
23610.40.1.214/3110.40.1.214 – 10.40.1.21510.40.1.215
23710.40.1.216/3110.40.1.216 – 10.40.1.21710.40.1.217
23810.40.1.218/3110.40.1.218 – 10.40.1.21910.40.1.219
23910.40.1.220/3110.40.1.220 – 10.40.1.22110.40.1.221
24010.40.1.222/3110.40.1.222 – 10.40.1.22310.40.1.223
24110.40.1.224/3110.40.1.224 – 10.40.1.22510.40.1.225
24210.40.1.226/3110.40.1.226 – 10.40.1.22710.40.1.227
24310.40.1.228/3110.40.1.228 – 10.40.1.22910.40.1.229
24410.40.1.230/3110.40.1.230 – 10.40.1.23110.40.1.231
24510.40.1.232/3110.40.1.232 – 10.40.1.23310.40.1.233
24610.40.1.234/3110.40.1.234 – 10.40.1.23510.40.1.235
24710.40.1.236/3110.40.1.236 – 10.40.1.23710.40.1.237
24810.40.1.238/3110.40.1.238 – 10.40.1.23910.40.1.239
24910.40.1.240/3110.40.1.240 – 10.40.1.24110.40.1.241
25010.40.1.242/3110.40.1.242 – 10.40.1.24310.40.1.243
25110.40.1.244/3110.40.1.244 – 10.40.1.24510.40.1.245
25210.40.1.246/3110.40.1.246 – 10.40.1.24710.40.1.247
25310.40.1.248/3110.40.1.248 – 10.40.1.24910.40.1.249
25410.40.1.250/3110.40.1.250 – 10.40.1.25110.40.1.251
25510.40.1.252/3110.40.1.252 – 10.40.1.25310.40.1.253
25610.40.1.254/3110.40.1.254 – 10.40.1.25510.40.1.255

showing 256 of 16,384

01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /17
/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-
/17255.255.128.032,76832,7661
/18255.255.192.016,38416,3822 split →
/19255.255.224.08,1928,1904 split →
/20255.255.240.04,0964,0948 split →
/21255.255.248.02,0482,04616 split →
/22255.255.252.01,0241,02232 split →
/23255.255.254.051251064 split →
/24255.255.255.0256254128 split →
/25255.255.255.128128126256 split →
/26255.255.255.1926462512 split →
/27255.255.255.22432301,024 split →
/28255.255.255.24016142,048 split →
/29255.255.255.248864,096 split →
/30255.255.255.252428,192 split →
/31255.255.255.2542216,384 split →
/32255.255.255.2551132,768 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 →