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)10.42.128.0/18
network10.42.128.0/18
broadcast10.42.191.255
first host10.42.128.1
last host10.42.191.254
subnet mask255.255.192.0
wildcard0.0.63.255
addresses16,384
usable hosts16,382
classA
ipcalc 10.42.128.0/18
address00001010.00101010.10000000.00000000
subnet mask11111111.11111111.11000000.00000000
network00001010.00101010.10000000.00000000
broadcast00001010.00101010.10111111.11111111
green = network part, grey = host part
hex0x0a2a8000
decimal170557440
reverse dns0.128.42.10.in-addr.arpa
ipv4-mapped::ffff:a2a:8000

/18 split into /29 · 2,048 subnets

close ×
#networkhost rangebroadcast
110.42.128.0/2910.42.128.1 – 10.42.128.610.42.128.7
210.42.128.8/2910.42.128.9 – 10.42.128.1410.42.128.15
310.42.128.16/2910.42.128.17 – 10.42.128.2210.42.128.23
410.42.128.24/2910.42.128.25 – 10.42.128.3010.42.128.31
510.42.128.32/2910.42.128.33 – 10.42.128.3810.42.128.39
610.42.128.40/2910.42.128.41 – 10.42.128.4610.42.128.47
710.42.128.48/2910.42.128.49 – 10.42.128.5410.42.128.55
810.42.128.56/2910.42.128.57 – 10.42.128.6210.42.128.63
910.42.128.64/2910.42.128.65 – 10.42.128.7010.42.128.71
1010.42.128.72/2910.42.128.73 – 10.42.128.7810.42.128.79
1110.42.128.80/2910.42.128.81 – 10.42.128.8610.42.128.87
1210.42.128.88/2910.42.128.89 – 10.42.128.9410.42.128.95
1310.42.128.96/2910.42.128.97 – 10.42.128.10210.42.128.103
1410.42.128.104/2910.42.128.105 – 10.42.128.11010.42.128.111
1510.42.128.112/2910.42.128.113 – 10.42.128.11810.42.128.119
1610.42.128.120/2910.42.128.121 – 10.42.128.12610.42.128.127
1710.42.128.128/2910.42.128.129 – 10.42.128.13410.42.128.135
1810.42.128.136/2910.42.128.137 – 10.42.128.14210.42.128.143
1910.42.128.144/2910.42.128.145 – 10.42.128.15010.42.128.151
2010.42.128.152/2910.42.128.153 – 10.42.128.15810.42.128.159
2110.42.128.160/2910.42.128.161 – 10.42.128.16610.42.128.167
2210.42.128.168/2910.42.128.169 – 10.42.128.17410.42.128.175
2310.42.128.176/2910.42.128.177 – 10.42.128.18210.42.128.183
2410.42.128.184/2910.42.128.185 – 10.42.128.19010.42.128.191
2510.42.128.192/2910.42.128.193 – 10.42.128.19810.42.128.199
2610.42.128.200/2910.42.128.201 – 10.42.128.20610.42.128.207
2710.42.128.208/2910.42.128.209 – 10.42.128.21410.42.128.215
2810.42.128.216/2910.42.128.217 – 10.42.128.22210.42.128.223
2910.42.128.224/2910.42.128.225 – 10.42.128.23010.42.128.231
3010.42.128.232/2910.42.128.233 – 10.42.128.23810.42.128.239
3110.42.128.240/2910.42.128.241 – 10.42.128.24610.42.128.247
3210.42.128.248/2910.42.128.249 – 10.42.128.25410.42.128.255
3310.42.129.0/2910.42.129.1 – 10.42.129.610.42.129.7
3410.42.129.8/2910.42.129.9 – 10.42.129.1410.42.129.15
3510.42.129.16/2910.42.129.17 – 10.42.129.2210.42.129.23
3610.42.129.24/2910.42.129.25 – 10.42.129.3010.42.129.31
3710.42.129.32/2910.42.129.33 – 10.42.129.3810.42.129.39
3810.42.129.40/2910.42.129.41 – 10.42.129.4610.42.129.47
3910.42.129.48/2910.42.129.49 – 10.42.129.5410.42.129.55
4010.42.129.56/2910.42.129.57 – 10.42.129.6210.42.129.63
4110.42.129.64/2910.42.129.65 – 10.42.129.7010.42.129.71
4210.42.129.72/2910.42.129.73 – 10.42.129.7810.42.129.79
4310.42.129.80/2910.42.129.81 – 10.42.129.8610.42.129.87
4410.42.129.88/2910.42.129.89 – 10.42.129.9410.42.129.95
4510.42.129.96/2910.42.129.97 – 10.42.129.10210.42.129.103
4610.42.129.104/2910.42.129.105 – 10.42.129.11010.42.129.111
4710.42.129.112/2910.42.129.113 – 10.42.129.11810.42.129.119
4810.42.129.120/2910.42.129.121 – 10.42.129.12610.42.129.127
4910.42.129.128/2910.42.129.129 – 10.42.129.13410.42.129.135
5010.42.129.136/2910.42.129.137 – 10.42.129.14210.42.129.143
5110.42.129.144/2910.42.129.145 – 10.42.129.15010.42.129.151
5210.42.129.152/2910.42.129.153 – 10.42.129.15810.42.129.159
5310.42.129.160/2910.42.129.161 – 10.42.129.16610.42.129.167
5410.42.129.168/2910.42.129.169 – 10.42.129.17410.42.129.175
5510.42.129.176/2910.42.129.177 – 10.42.129.18210.42.129.183
5610.42.129.184/2910.42.129.185 – 10.42.129.19010.42.129.191
5710.42.129.192/2910.42.129.193 – 10.42.129.19810.42.129.199
5810.42.129.200/2910.42.129.201 – 10.42.129.20610.42.129.207
5910.42.129.208/2910.42.129.209 – 10.42.129.21410.42.129.215
6010.42.129.216/2910.42.129.217 – 10.42.129.22210.42.129.223
6110.42.129.224/2910.42.129.225 – 10.42.129.23010.42.129.231
6210.42.129.232/2910.42.129.233 – 10.42.129.23810.42.129.239
6310.42.129.240/2910.42.129.241 – 10.42.129.24610.42.129.247
6410.42.129.248/2910.42.129.249 – 10.42.129.25410.42.129.255
6510.42.130.0/2910.42.130.1 – 10.42.130.610.42.130.7
6610.42.130.8/2910.42.130.9 – 10.42.130.1410.42.130.15
6710.42.130.16/2910.42.130.17 – 10.42.130.2210.42.130.23
6810.42.130.24/2910.42.130.25 – 10.42.130.3010.42.130.31
6910.42.130.32/2910.42.130.33 – 10.42.130.3810.42.130.39
7010.42.130.40/2910.42.130.41 – 10.42.130.4610.42.130.47
7110.42.130.48/2910.42.130.49 – 10.42.130.5410.42.130.55
7210.42.130.56/2910.42.130.57 – 10.42.130.6210.42.130.63
7310.42.130.64/2910.42.130.65 – 10.42.130.7010.42.130.71
7410.42.130.72/2910.42.130.73 – 10.42.130.7810.42.130.79
7510.42.130.80/2910.42.130.81 – 10.42.130.8610.42.130.87
7610.42.130.88/2910.42.130.89 – 10.42.130.9410.42.130.95
7710.42.130.96/2910.42.130.97 – 10.42.130.10210.42.130.103
7810.42.130.104/2910.42.130.105 – 10.42.130.11010.42.130.111
7910.42.130.112/2910.42.130.113 – 10.42.130.11810.42.130.119
8010.42.130.120/2910.42.130.121 – 10.42.130.12610.42.130.127
8110.42.130.128/2910.42.130.129 – 10.42.130.13410.42.130.135
8210.42.130.136/2910.42.130.137 – 10.42.130.14210.42.130.143
8310.42.130.144/2910.42.130.145 – 10.42.130.15010.42.130.151
8410.42.130.152/2910.42.130.153 – 10.42.130.15810.42.130.159
8510.42.130.160/2910.42.130.161 – 10.42.130.16610.42.130.167
8610.42.130.168/2910.42.130.169 – 10.42.130.17410.42.130.175
8710.42.130.176/2910.42.130.177 – 10.42.130.18210.42.130.183
8810.42.130.184/2910.42.130.185 – 10.42.130.19010.42.130.191
8910.42.130.192/2910.42.130.193 – 10.42.130.19810.42.130.199
9010.42.130.200/2910.42.130.201 – 10.42.130.20610.42.130.207
9110.42.130.208/2910.42.130.209 – 10.42.130.21410.42.130.215
9210.42.130.216/2910.42.130.217 – 10.42.130.22210.42.130.223
9310.42.130.224/2910.42.130.225 – 10.42.130.23010.42.130.231
9410.42.130.232/2910.42.130.233 – 10.42.130.23810.42.130.239
9510.42.130.240/2910.42.130.241 – 10.42.130.24610.42.130.247
9610.42.130.248/2910.42.130.249 – 10.42.130.25410.42.130.255
9710.42.131.0/2910.42.131.1 – 10.42.131.610.42.131.7
9810.42.131.8/2910.42.131.9 – 10.42.131.1410.42.131.15
9910.42.131.16/2910.42.131.17 – 10.42.131.2210.42.131.23
10010.42.131.24/2910.42.131.25 – 10.42.131.3010.42.131.31
10110.42.131.32/2910.42.131.33 – 10.42.131.3810.42.131.39
10210.42.131.40/2910.42.131.41 – 10.42.131.4610.42.131.47
10310.42.131.48/2910.42.131.49 – 10.42.131.5410.42.131.55
10410.42.131.56/2910.42.131.57 – 10.42.131.6210.42.131.63
10510.42.131.64/2910.42.131.65 – 10.42.131.7010.42.131.71
10610.42.131.72/2910.42.131.73 – 10.42.131.7810.42.131.79
10710.42.131.80/2910.42.131.81 – 10.42.131.8610.42.131.87
10810.42.131.88/2910.42.131.89 – 10.42.131.9410.42.131.95
10910.42.131.96/2910.42.131.97 – 10.42.131.10210.42.131.103
11010.42.131.104/2910.42.131.105 – 10.42.131.11010.42.131.111
11110.42.131.112/2910.42.131.113 – 10.42.131.11810.42.131.119
11210.42.131.120/2910.42.131.121 – 10.42.131.12610.42.131.127
11310.42.131.128/2910.42.131.129 – 10.42.131.13410.42.131.135
11410.42.131.136/2910.42.131.137 – 10.42.131.14210.42.131.143
11510.42.131.144/2910.42.131.145 – 10.42.131.15010.42.131.151
11610.42.131.152/2910.42.131.153 – 10.42.131.15810.42.131.159
11710.42.131.160/2910.42.131.161 – 10.42.131.16610.42.131.167
11810.42.131.168/2910.42.131.169 – 10.42.131.17410.42.131.175
11910.42.131.176/2910.42.131.177 – 10.42.131.18210.42.131.183
12010.42.131.184/2910.42.131.185 – 10.42.131.19010.42.131.191
12110.42.131.192/2910.42.131.193 – 10.42.131.19810.42.131.199
12210.42.131.200/2910.42.131.201 – 10.42.131.20610.42.131.207
12310.42.131.208/2910.42.131.209 – 10.42.131.21410.42.131.215
12410.42.131.216/2910.42.131.217 – 10.42.131.22210.42.131.223
12510.42.131.224/2910.42.131.225 – 10.42.131.23010.42.131.231
12610.42.131.232/2910.42.131.233 – 10.42.131.23810.42.131.239
12710.42.131.240/2910.42.131.241 – 10.42.131.24610.42.131.247
12810.42.131.248/2910.42.131.249 – 10.42.131.25410.42.131.255
12910.42.132.0/2910.42.132.1 – 10.42.132.610.42.132.7
13010.42.132.8/2910.42.132.9 – 10.42.132.1410.42.132.15
13110.42.132.16/2910.42.132.17 – 10.42.132.2210.42.132.23
13210.42.132.24/2910.42.132.25 – 10.42.132.3010.42.132.31
13310.42.132.32/2910.42.132.33 – 10.42.132.3810.42.132.39
13410.42.132.40/2910.42.132.41 – 10.42.132.4610.42.132.47
13510.42.132.48/2910.42.132.49 – 10.42.132.5410.42.132.55
13610.42.132.56/2910.42.132.57 – 10.42.132.6210.42.132.63
13710.42.132.64/2910.42.132.65 – 10.42.132.7010.42.132.71
13810.42.132.72/2910.42.132.73 – 10.42.132.7810.42.132.79
13910.42.132.80/2910.42.132.81 – 10.42.132.8610.42.132.87
14010.42.132.88/2910.42.132.89 – 10.42.132.9410.42.132.95
14110.42.132.96/2910.42.132.97 – 10.42.132.10210.42.132.103
14210.42.132.104/2910.42.132.105 – 10.42.132.11010.42.132.111
14310.42.132.112/2910.42.132.113 – 10.42.132.11810.42.132.119
14410.42.132.120/2910.42.132.121 – 10.42.132.12610.42.132.127
14510.42.132.128/2910.42.132.129 – 10.42.132.13410.42.132.135
14610.42.132.136/2910.42.132.137 – 10.42.132.14210.42.132.143
14710.42.132.144/2910.42.132.145 – 10.42.132.15010.42.132.151
14810.42.132.152/2910.42.132.153 – 10.42.132.15810.42.132.159
14910.42.132.160/2910.42.132.161 – 10.42.132.16610.42.132.167
15010.42.132.168/2910.42.132.169 – 10.42.132.17410.42.132.175
15110.42.132.176/2910.42.132.177 – 10.42.132.18210.42.132.183
15210.42.132.184/2910.42.132.185 – 10.42.132.19010.42.132.191
15310.42.132.192/2910.42.132.193 – 10.42.132.19810.42.132.199
15410.42.132.200/2910.42.132.201 – 10.42.132.20610.42.132.207
15510.42.132.208/2910.42.132.209 – 10.42.132.21410.42.132.215
15610.42.132.216/2910.42.132.217 – 10.42.132.22210.42.132.223
15710.42.132.224/2910.42.132.225 – 10.42.132.23010.42.132.231
15810.42.132.232/2910.42.132.233 – 10.42.132.23810.42.132.239
15910.42.132.240/2910.42.132.241 – 10.42.132.24610.42.132.247
16010.42.132.248/2910.42.132.249 – 10.42.132.25410.42.132.255
16110.42.133.0/2910.42.133.1 – 10.42.133.610.42.133.7
16210.42.133.8/2910.42.133.9 – 10.42.133.1410.42.133.15
16310.42.133.16/2910.42.133.17 – 10.42.133.2210.42.133.23
16410.42.133.24/2910.42.133.25 – 10.42.133.3010.42.133.31
16510.42.133.32/2910.42.133.33 – 10.42.133.3810.42.133.39
16610.42.133.40/2910.42.133.41 – 10.42.133.4610.42.133.47
16710.42.133.48/2910.42.133.49 – 10.42.133.5410.42.133.55
16810.42.133.56/2910.42.133.57 – 10.42.133.6210.42.133.63
16910.42.133.64/2910.42.133.65 – 10.42.133.7010.42.133.71
17010.42.133.72/2910.42.133.73 – 10.42.133.7810.42.133.79
17110.42.133.80/2910.42.133.81 – 10.42.133.8610.42.133.87
17210.42.133.88/2910.42.133.89 – 10.42.133.9410.42.133.95
17310.42.133.96/2910.42.133.97 – 10.42.133.10210.42.133.103
17410.42.133.104/2910.42.133.105 – 10.42.133.11010.42.133.111
17510.42.133.112/2910.42.133.113 – 10.42.133.11810.42.133.119
17610.42.133.120/2910.42.133.121 – 10.42.133.12610.42.133.127
17710.42.133.128/2910.42.133.129 – 10.42.133.13410.42.133.135
17810.42.133.136/2910.42.133.137 – 10.42.133.14210.42.133.143
17910.42.133.144/2910.42.133.145 – 10.42.133.15010.42.133.151
18010.42.133.152/2910.42.133.153 – 10.42.133.15810.42.133.159
18110.42.133.160/2910.42.133.161 – 10.42.133.16610.42.133.167
18210.42.133.168/2910.42.133.169 – 10.42.133.17410.42.133.175
18310.42.133.176/2910.42.133.177 – 10.42.133.18210.42.133.183
18410.42.133.184/2910.42.133.185 – 10.42.133.19010.42.133.191
18510.42.133.192/2910.42.133.193 – 10.42.133.19810.42.133.199
18610.42.133.200/2910.42.133.201 – 10.42.133.20610.42.133.207
18710.42.133.208/2910.42.133.209 – 10.42.133.21410.42.133.215
18810.42.133.216/2910.42.133.217 – 10.42.133.22210.42.133.223
18910.42.133.224/2910.42.133.225 – 10.42.133.23010.42.133.231
19010.42.133.232/2910.42.133.233 – 10.42.133.23810.42.133.239
19110.42.133.240/2910.42.133.241 – 10.42.133.24610.42.133.247
19210.42.133.248/2910.42.133.249 – 10.42.133.25410.42.133.255
19310.42.134.0/2910.42.134.1 – 10.42.134.610.42.134.7
19410.42.134.8/2910.42.134.9 – 10.42.134.1410.42.134.15
19510.42.134.16/2910.42.134.17 – 10.42.134.2210.42.134.23
19610.42.134.24/2910.42.134.25 – 10.42.134.3010.42.134.31
19710.42.134.32/2910.42.134.33 – 10.42.134.3810.42.134.39
19810.42.134.40/2910.42.134.41 – 10.42.134.4610.42.134.47
19910.42.134.48/2910.42.134.49 – 10.42.134.5410.42.134.55
20010.42.134.56/2910.42.134.57 – 10.42.134.6210.42.134.63
20110.42.134.64/2910.42.134.65 – 10.42.134.7010.42.134.71
20210.42.134.72/2910.42.134.73 – 10.42.134.7810.42.134.79
20310.42.134.80/2910.42.134.81 – 10.42.134.8610.42.134.87
20410.42.134.88/2910.42.134.89 – 10.42.134.9410.42.134.95
20510.42.134.96/2910.42.134.97 – 10.42.134.10210.42.134.103
20610.42.134.104/2910.42.134.105 – 10.42.134.11010.42.134.111
20710.42.134.112/2910.42.134.113 – 10.42.134.11810.42.134.119
20810.42.134.120/2910.42.134.121 – 10.42.134.12610.42.134.127
20910.42.134.128/2910.42.134.129 – 10.42.134.13410.42.134.135
21010.42.134.136/2910.42.134.137 – 10.42.134.14210.42.134.143
21110.42.134.144/2910.42.134.145 – 10.42.134.15010.42.134.151
21210.42.134.152/2910.42.134.153 – 10.42.134.15810.42.134.159
21310.42.134.160/2910.42.134.161 – 10.42.134.16610.42.134.167
21410.42.134.168/2910.42.134.169 – 10.42.134.17410.42.134.175
21510.42.134.176/2910.42.134.177 – 10.42.134.18210.42.134.183
21610.42.134.184/2910.42.134.185 – 10.42.134.19010.42.134.191
21710.42.134.192/2910.42.134.193 – 10.42.134.19810.42.134.199
21810.42.134.200/2910.42.134.201 – 10.42.134.20610.42.134.207
21910.42.134.208/2910.42.134.209 – 10.42.134.21410.42.134.215
22010.42.134.216/2910.42.134.217 – 10.42.134.22210.42.134.223
22110.42.134.224/2910.42.134.225 – 10.42.134.23010.42.134.231
22210.42.134.232/2910.42.134.233 – 10.42.134.23810.42.134.239
22310.42.134.240/2910.42.134.241 – 10.42.134.24610.42.134.247
22410.42.134.248/2910.42.134.249 – 10.42.134.25410.42.134.255
22510.42.135.0/2910.42.135.1 – 10.42.135.610.42.135.7
22610.42.135.8/2910.42.135.9 – 10.42.135.1410.42.135.15
22710.42.135.16/2910.42.135.17 – 10.42.135.2210.42.135.23
22810.42.135.24/2910.42.135.25 – 10.42.135.3010.42.135.31
22910.42.135.32/2910.42.135.33 – 10.42.135.3810.42.135.39
23010.42.135.40/2910.42.135.41 – 10.42.135.4610.42.135.47
23110.42.135.48/2910.42.135.49 – 10.42.135.5410.42.135.55
23210.42.135.56/2910.42.135.57 – 10.42.135.6210.42.135.63
23310.42.135.64/2910.42.135.65 – 10.42.135.7010.42.135.71
23410.42.135.72/2910.42.135.73 – 10.42.135.7810.42.135.79
23510.42.135.80/2910.42.135.81 – 10.42.135.8610.42.135.87
23610.42.135.88/2910.42.135.89 – 10.42.135.9410.42.135.95
23710.42.135.96/2910.42.135.97 – 10.42.135.10210.42.135.103
23810.42.135.104/2910.42.135.105 – 10.42.135.11010.42.135.111
23910.42.135.112/2910.42.135.113 – 10.42.135.11810.42.135.119
24010.42.135.120/2910.42.135.121 – 10.42.135.12610.42.135.127
24110.42.135.128/2910.42.135.129 – 10.42.135.13410.42.135.135
24210.42.135.136/2910.42.135.137 – 10.42.135.14210.42.135.143
24310.42.135.144/2910.42.135.145 – 10.42.135.15010.42.135.151
24410.42.135.152/2910.42.135.153 – 10.42.135.15810.42.135.159
24510.42.135.160/2910.42.135.161 – 10.42.135.16610.42.135.167
24610.42.135.168/2910.42.135.169 – 10.42.135.17410.42.135.175
24710.42.135.176/2910.42.135.177 – 10.42.135.18210.42.135.183
24810.42.135.184/2910.42.135.185 – 10.42.135.19010.42.135.191
24910.42.135.192/2910.42.135.193 – 10.42.135.19810.42.135.199
25010.42.135.200/2910.42.135.201 – 10.42.135.20610.42.135.207
25110.42.135.208/2910.42.135.209 – 10.42.135.21410.42.135.215
25210.42.135.216/2910.42.135.217 – 10.42.135.22210.42.135.223
25310.42.135.224/2910.42.135.225 – 10.42.135.23010.42.135.231
25410.42.135.232/2910.42.135.233 – 10.42.135.23810.42.135.239
25510.42.135.240/2910.42.135.241 – 10.42.135.24610.42.135.247
25610.42.135.248/2910.42.135.249 – 10.42.135.25410.42.135.255

showing 256 of 2,048

01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /18
/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-
/18255.255.192.016,38416,3821
/19255.255.224.08,1928,1902 split →
/20255.255.240.04,0964,0944 split →
/21255.255.248.02,0482,0468 split →
/22255.255.252.01,0241,02216 split →
/23255.255.254.051251032 split →
/24255.255.255.025625464 split →
/25255.255.255.128128126128 split →
/26255.255.255.1926462256 split →
/27255.255.255.2243230512 split →
/28255.255.255.24016141,024 split →
/29255.255.255.248862,048 split →
/30255.255.255.252424,096 split →
/31255.255.255.254228,192 split →
/32255.255.255.2551116,384 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 →