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)10.69.0.0/16
network10.69.0.0/16
broadcast10.69.255.255
first host10.69.0.1
last host10.69.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.69.0.0/16
address00001010.01000101.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.01000101.00000000.00000000
broadcast00001010.01000101.11111111.11111111
green = network part, grey = host part
hex0x0a450000
decimal172294144
reverse dns0.0.69.10.in-addr.arpa
ipv4-mapped::ffff:a45:0

/16 split into /27 · 2,048 subnets

close ×
#networkhost rangebroadcast
110.69.0.0/2710.69.0.1 – 10.69.0.3010.69.0.31
210.69.0.32/2710.69.0.33 – 10.69.0.6210.69.0.63
310.69.0.64/2710.69.0.65 – 10.69.0.9410.69.0.95
410.69.0.96/2710.69.0.97 – 10.69.0.12610.69.0.127
510.69.0.128/2710.69.0.129 – 10.69.0.15810.69.0.159
610.69.0.160/2710.69.0.161 – 10.69.0.19010.69.0.191
710.69.0.192/2710.69.0.193 – 10.69.0.22210.69.0.223
810.69.0.224/2710.69.0.225 – 10.69.0.25410.69.0.255
910.69.1.0/2710.69.1.1 – 10.69.1.3010.69.1.31
1010.69.1.32/2710.69.1.33 – 10.69.1.6210.69.1.63
1110.69.1.64/2710.69.1.65 – 10.69.1.9410.69.1.95
1210.69.1.96/2710.69.1.97 – 10.69.1.12610.69.1.127
1310.69.1.128/2710.69.1.129 – 10.69.1.15810.69.1.159
1410.69.1.160/2710.69.1.161 – 10.69.1.19010.69.1.191
1510.69.1.192/2710.69.1.193 – 10.69.1.22210.69.1.223
1610.69.1.224/2710.69.1.225 – 10.69.1.25410.69.1.255
1710.69.2.0/2710.69.2.1 – 10.69.2.3010.69.2.31
1810.69.2.32/2710.69.2.33 – 10.69.2.6210.69.2.63
1910.69.2.64/2710.69.2.65 – 10.69.2.9410.69.2.95
2010.69.2.96/2710.69.2.97 – 10.69.2.12610.69.2.127
2110.69.2.128/2710.69.2.129 – 10.69.2.15810.69.2.159
2210.69.2.160/2710.69.2.161 – 10.69.2.19010.69.2.191
2310.69.2.192/2710.69.2.193 – 10.69.2.22210.69.2.223
2410.69.2.224/2710.69.2.225 – 10.69.2.25410.69.2.255
2510.69.3.0/2710.69.3.1 – 10.69.3.3010.69.3.31
2610.69.3.32/2710.69.3.33 – 10.69.3.6210.69.3.63
2710.69.3.64/2710.69.3.65 – 10.69.3.9410.69.3.95
2810.69.3.96/2710.69.3.97 – 10.69.3.12610.69.3.127
2910.69.3.128/2710.69.3.129 – 10.69.3.15810.69.3.159
3010.69.3.160/2710.69.3.161 – 10.69.3.19010.69.3.191
3110.69.3.192/2710.69.3.193 – 10.69.3.22210.69.3.223
3210.69.3.224/2710.69.3.225 – 10.69.3.25410.69.3.255
3310.69.4.0/2710.69.4.1 – 10.69.4.3010.69.4.31
3410.69.4.32/2710.69.4.33 – 10.69.4.6210.69.4.63
3510.69.4.64/2710.69.4.65 – 10.69.4.9410.69.4.95
3610.69.4.96/2710.69.4.97 – 10.69.4.12610.69.4.127
3710.69.4.128/2710.69.4.129 – 10.69.4.15810.69.4.159
3810.69.4.160/2710.69.4.161 – 10.69.4.19010.69.4.191
3910.69.4.192/2710.69.4.193 – 10.69.4.22210.69.4.223
4010.69.4.224/2710.69.4.225 – 10.69.4.25410.69.4.255
4110.69.5.0/2710.69.5.1 – 10.69.5.3010.69.5.31
4210.69.5.32/2710.69.5.33 – 10.69.5.6210.69.5.63
4310.69.5.64/2710.69.5.65 – 10.69.5.9410.69.5.95
4410.69.5.96/2710.69.5.97 – 10.69.5.12610.69.5.127
4510.69.5.128/2710.69.5.129 – 10.69.5.15810.69.5.159
4610.69.5.160/2710.69.5.161 – 10.69.5.19010.69.5.191
4710.69.5.192/2710.69.5.193 – 10.69.5.22210.69.5.223
4810.69.5.224/2710.69.5.225 – 10.69.5.25410.69.5.255
4910.69.6.0/2710.69.6.1 – 10.69.6.3010.69.6.31
5010.69.6.32/2710.69.6.33 – 10.69.6.6210.69.6.63
5110.69.6.64/2710.69.6.65 – 10.69.6.9410.69.6.95
5210.69.6.96/2710.69.6.97 – 10.69.6.12610.69.6.127
5310.69.6.128/2710.69.6.129 – 10.69.6.15810.69.6.159
5410.69.6.160/2710.69.6.161 – 10.69.6.19010.69.6.191
5510.69.6.192/2710.69.6.193 – 10.69.6.22210.69.6.223
5610.69.6.224/2710.69.6.225 – 10.69.6.25410.69.6.255
5710.69.7.0/2710.69.7.1 – 10.69.7.3010.69.7.31
5810.69.7.32/2710.69.7.33 – 10.69.7.6210.69.7.63
5910.69.7.64/2710.69.7.65 – 10.69.7.9410.69.7.95
6010.69.7.96/2710.69.7.97 – 10.69.7.12610.69.7.127
6110.69.7.128/2710.69.7.129 – 10.69.7.15810.69.7.159
6210.69.7.160/2710.69.7.161 – 10.69.7.19010.69.7.191
6310.69.7.192/2710.69.7.193 – 10.69.7.22210.69.7.223
6410.69.7.224/2710.69.7.225 – 10.69.7.25410.69.7.255
6510.69.8.0/2710.69.8.1 – 10.69.8.3010.69.8.31
6610.69.8.32/2710.69.8.33 – 10.69.8.6210.69.8.63
6710.69.8.64/2710.69.8.65 – 10.69.8.9410.69.8.95
6810.69.8.96/2710.69.8.97 – 10.69.8.12610.69.8.127
6910.69.8.128/2710.69.8.129 – 10.69.8.15810.69.8.159
7010.69.8.160/2710.69.8.161 – 10.69.8.19010.69.8.191
7110.69.8.192/2710.69.8.193 – 10.69.8.22210.69.8.223
7210.69.8.224/2710.69.8.225 – 10.69.8.25410.69.8.255
7310.69.9.0/2710.69.9.1 – 10.69.9.3010.69.9.31
7410.69.9.32/2710.69.9.33 – 10.69.9.6210.69.9.63
7510.69.9.64/2710.69.9.65 – 10.69.9.9410.69.9.95
7610.69.9.96/2710.69.9.97 – 10.69.9.12610.69.9.127
7710.69.9.128/2710.69.9.129 – 10.69.9.15810.69.9.159
7810.69.9.160/2710.69.9.161 – 10.69.9.19010.69.9.191
7910.69.9.192/2710.69.9.193 – 10.69.9.22210.69.9.223
8010.69.9.224/2710.69.9.225 – 10.69.9.25410.69.9.255
8110.69.10.0/2710.69.10.1 – 10.69.10.3010.69.10.31
8210.69.10.32/2710.69.10.33 – 10.69.10.6210.69.10.63
8310.69.10.64/2710.69.10.65 – 10.69.10.9410.69.10.95
8410.69.10.96/2710.69.10.97 – 10.69.10.12610.69.10.127
8510.69.10.128/2710.69.10.129 – 10.69.10.15810.69.10.159
8610.69.10.160/2710.69.10.161 – 10.69.10.19010.69.10.191
8710.69.10.192/2710.69.10.193 – 10.69.10.22210.69.10.223
8810.69.10.224/2710.69.10.225 – 10.69.10.25410.69.10.255
8910.69.11.0/2710.69.11.1 – 10.69.11.3010.69.11.31
9010.69.11.32/2710.69.11.33 – 10.69.11.6210.69.11.63
9110.69.11.64/2710.69.11.65 – 10.69.11.9410.69.11.95
9210.69.11.96/2710.69.11.97 – 10.69.11.12610.69.11.127
9310.69.11.128/2710.69.11.129 – 10.69.11.15810.69.11.159
9410.69.11.160/2710.69.11.161 – 10.69.11.19010.69.11.191
9510.69.11.192/2710.69.11.193 – 10.69.11.22210.69.11.223
9610.69.11.224/2710.69.11.225 – 10.69.11.25410.69.11.255
9710.69.12.0/2710.69.12.1 – 10.69.12.3010.69.12.31
9810.69.12.32/2710.69.12.33 – 10.69.12.6210.69.12.63
9910.69.12.64/2710.69.12.65 – 10.69.12.9410.69.12.95
10010.69.12.96/2710.69.12.97 – 10.69.12.12610.69.12.127
10110.69.12.128/2710.69.12.129 – 10.69.12.15810.69.12.159
10210.69.12.160/2710.69.12.161 – 10.69.12.19010.69.12.191
10310.69.12.192/2710.69.12.193 – 10.69.12.22210.69.12.223
10410.69.12.224/2710.69.12.225 – 10.69.12.25410.69.12.255
10510.69.13.0/2710.69.13.1 – 10.69.13.3010.69.13.31
10610.69.13.32/2710.69.13.33 – 10.69.13.6210.69.13.63
10710.69.13.64/2710.69.13.65 – 10.69.13.9410.69.13.95
10810.69.13.96/2710.69.13.97 – 10.69.13.12610.69.13.127
10910.69.13.128/2710.69.13.129 – 10.69.13.15810.69.13.159
11010.69.13.160/2710.69.13.161 – 10.69.13.19010.69.13.191
11110.69.13.192/2710.69.13.193 – 10.69.13.22210.69.13.223
11210.69.13.224/2710.69.13.225 – 10.69.13.25410.69.13.255
11310.69.14.0/2710.69.14.1 – 10.69.14.3010.69.14.31
11410.69.14.32/2710.69.14.33 – 10.69.14.6210.69.14.63
11510.69.14.64/2710.69.14.65 – 10.69.14.9410.69.14.95
11610.69.14.96/2710.69.14.97 – 10.69.14.12610.69.14.127
11710.69.14.128/2710.69.14.129 – 10.69.14.15810.69.14.159
11810.69.14.160/2710.69.14.161 – 10.69.14.19010.69.14.191
11910.69.14.192/2710.69.14.193 – 10.69.14.22210.69.14.223
12010.69.14.224/2710.69.14.225 – 10.69.14.25410.69.14.255
12110.69.15.0/2710.69.15.1 – 10.69.15.3010.69.15.31
12210.69.15.32/2710.69.15.33 – 10.69.15.6210.69.15.63
12310.69.15.64/2710.69.15.65 – 10.69.15.9410.69.15.95
12410.69.15.96/2710.69.15.97 – 10.69.15.12610.69.15.127
12510.69.15.128/2710.69.15.129 – 10.69.15.15810.69.15.159
12610.69.15.160/2710.69.15.161 – 10.69.15.19010.69.15.191
12710.69.15.192/2710.69.15.193 – 10.69.15.22210.69.15.223
12810.69.15.224/2710.69.15.225 – 10.69.15.25410.69.15.255
12910.69.16.0/2710.69.16.1 – 10.69.16.3010.69.16.31
13010.69.16.32/2710.69.16.33 – 10.69.16.6210.69.16.63
13110.69.16.64/2710.69.16.65 – 10.69.16.9410.69.16.95
13210.69.16.96/2710.69.16.97 – 10.69.16.12610.69.16.127
13310.69.16.128/2710.69.16.129 – 10.69.16.15810.69.16.159
13410.69.16.160/2710.69.16.161 – 10.69.16.19010.69.16.191
13510.69.16.192/2710.69.16.193 – 10.69.16.22210.69.16.223
13610.69.16.224/2710.69.16.225 – 10.69.16.25410.69.16.255
13710.69.17.0/2710.69.17.1 – 10.69.17.3010.69.17.31
13810.69.17.32/2710.69.17.33 – 10.69.17.6210.69.17.63
13910.69.17.64/2710.69.17.65 – 10.69.17.9410.69.17.95
14010.69.17.96/2710.69.17.97 – 10.69.17.12610.69.17.127
14110.69.17.128/2710.69.17.129 – 10.69.17.15810.69.17.159
14210.69.17.160/2710.69.17.161 – 10.69.17.19010.69.17.191
14310.69.17.192/2710.69.17.193 – 10.69.17.22210.69.17.223
14410.69.17.224/2710.69.17.225 – 10.69.17.25410.69.17.255
14510.69.18.0/2710.69.18.1 – 10.69.18.3010.69.18.31
14610.69.18.32/2710.69.18.33 – 10.69.18.6210.69.18.63
14710.69.18.64/2710.69.18.65 – 10.69.18.9410.69.18.95
14810.69.18.96/2710.69.18.97 – 10.69.18.12610.69.18.127
14910.69.18.128/2710.69.18.129 – 10.69.18.15810.69.18.159
15010.69.18.160/2710.69.18.161 – 10.69.18.19010.69.18.191
15110.69.18.192/2710.69.18.193 – 10.69.18.22210.69.18.223
15210.69.18.224/2710.69.18.225 – 10.69.18.25410.69.18.255
15310.69.19.0/2710.69.19.1 – 10.69.19.3010.69.19.31
15410.69.19.32/2710.69.19.33 – 10.69.19.6210.69.19.63
15510.69.19.64/2710.69.19.65 – 10.69.19.9410.69.19.95
15610.69.19.96/2710.69.19.97 – 10.69.19.12610.69.19.127
15710.69.19.128/2710.69.19.129 – 10.69.19.15810.69.19.159
15810.69.19.160/2710.69.19.161 – 10.69.19.19010.69.19.191
15910.69.19.192/2710.69.19.193 – 10.69.19.22210.69.19.223
16010.69.19.224/2710.69.19.225 – 10.69.19.25410.69.19.255
16110.69.20.0/2710.69.20.1 – 10.69.20.3010.69.20.31
16210.69.20.32/2710.69.20.33 – 10.69.20.6210.69.20.63
16310.69.20.64/2710.69.20.65 – 10.69.20.9410.69.20.95
16410.69.20.96/2710.69.20.97 – 10.69.20.12610.69.20.127
16510.69.20.128/2710.69.20.129 – 10.69.20.15810.69.20.159
16610.69.20.160/2710.69.20.161 – 10.69.20.19010.69.20.191
16710.69.20.192/2710.69.20.193 – 10.69.20.22210.69.20.223
16810.69.20.224/2710.69.20.225 – 10.69.20.25410.69.20.255
16910.69.21.0/2710.69.21.1 – 10.69.21.3010.69.21.31
17010.69.21.32/2710.69.21.33 – 10.69.21.6210.69.21.63
17110.69.21.64/2710.69.21.65 – 10.69.21.9410.69.21.95
17210.69.21.96/2710.69.21.97 – 10.69.21.12610.69.21.127
17310.69.21.128/2710.69.21.129 – 10.69.21.15810.69.21.159
17410.69.21.160/2710.69.21.161 – 10.69.21.19010.69.21.191
17510.69.21.192/2710.69.21.193 – 10.69.21.22210.69.21.223
17610.69.21.224/2710.69.21.225 – 10.69.21.25410.69.21.255
17710.69.22.0/2710.69.22.1 – 10.69.22.3010.69.22.31
17810.69.22.32/2710.69.22.33 – 10.69.22.6210.69.22.63
17910.69.22.64/2710.69.22.65 – 10.69.22.9410.69.22.95
18010.69.22.96/2710.69.22.97 – 10.69.22.12610.69.22.127
18110.69.22.128/2710.69.22.129 – 10.69.22.15810.69.22.159
18210.69.22.160/2710.69.22.161 – 10.69.22.19010.69.22.191
18310.69.22.192/2710.69.22.193 – 10.69.22.22210.69.22.223
18410.69.22.224/2710.69.22.225 – 10.69.22.25410.69.22.255
18510.69.23.0/2710.69.23.1 – 10.69.23.3010.69.23.31
18610.69.23.32/2710.69.23.33 – 10.69.23.6210.69.23.63
18710.69.23.64/2710.69.23.65 – 10.69.23.9410.69.23.95
18810.69.23.96/2710.69.23.97 – 10.69.23.12610.69.23.127
18910.69.23.128/2710.69.23.129 – 10.69.23.15810.69.23.159
19010.69.23.160/2710.69.23.161 – 10.69.23.19010.69.23.191
19110.69.23.192/2710.69.23.193 – 10.69.23.22210.69.23.223
19210.69.23.224/2710.69.23.225 – 10.69.23.25410.69.23.255
19310.69.24.0/2710.69.24.1 – 10.69.24.3010.69.24.31
19410.69.24.32/2710.69.24.33 – 10.69.24.6210.69.24.63
19510.69.24.64/2710.69.24.65 – 10.69.24.9410.69.24.95
19610.69.24.96/2710.69.24.97 – 10.69.24.12610.69.24.127
19710.69.24.128/2710.69.24.129 – 10.69.24.15810.69.24.159
19810.69.24.160/2710.69.24.161 – 10.69.24.19010.69.24.191
19910.69.24.192/2710.69.24.193 – 10.69.24.22210.69.24.223
20010.69.24.224/2710.69.24.225 – 10.69.24.25410.69.24.255
20110.69.25.0/2710.69.25.1 – 10.69.25.3010.69.25.31
20210.69.25.32/2710.69.25.33 – 10.69.25.6210.69.25.63
20310.69.25.64/2710.69.25.65 – 10.69.25.9410.69.25.95
20410.69.25.96/2710.69.25.97 – 10.69.25.12610.69.25.127
20510.69.25.128/2710.69.25.129 – 10.69.25.15810.69.25.159
20610.69.25.160/2710.69.25.161 – 10.69.25.19010.69.25.191
20710.69.25.192/2710.69.25.193 – 10.69.25.22210.69.25.223
20810.69.25.224/2710.69.25.225 – 10.69.25.25410.69.25.255
20910.69.26.0/2710.69.26.1 – 10.69.26.3010.69.26.31
21010.69.26.32/2710.69.26.33 – 10.69.26.6210.69.26.63
21110.69.26.64/2710.69.26.65 – 10.69.26.9410.69.26.95
21210.69.26.96/2710.69.26.97 – 10.69.26.12610.69.26.127
21310.69.26.128/2710.69.26.129 – 10.69.26.15810.69.26.159
21410.69.26.160/2710.69.26.161 – 10.69.26.19010.69.26.191
21510.69.26.192/2710.69.26.193 – 10.69.26.22210.69.26.223
21610.69.26.224/2710.69.26.225 – 10.69.26.25410.69.26.255
21710.69.27.0/2710.69.27.1 – 10.69.27.3010.69.27.31
21810.69.27.32/2710.69.27.33 – 10.69.27.6210.69.27.63
21910.69.27.64/2710.69.27.65 – 10.69.27.9410.69.27.95
22010.69.27.96/2710.69.27.97 – 10.69.27.12610.69.27.127
22110.69.27.128/2710.69.27.129 – 10.69.27.15810.69.27.159
22210.69.27.160/2710.69.27.161 – 10.69.27.19010.69.27.191
22310.69.27.192/2710.69.27.193 – 10.69.27.22210.69.27.223
22410.69.27.224/2710.69.27.225 – 10.69.27.25410.69.27.255
22510.69.28.0/2710.69.28.1 – 10.69.28.3010.69.28.31
22610.69.28.32/2710.69.28.33 – 10.69.28.6210.69.28.63
22710.69.28.64/2710.69.28.65 – 10.69.28.9410.69.28.95
22810.69.28.96/2710.69.28.97 – 10.69.28.12610.69.28.127
22910.69.28.128/2710.69.28.129 – 10.69.28.15810.69.28.159
23010.69.28.160/2710.69.28.161 – 10.69.28.19010.69.28.191
23110.69.28.192/2710.69.28.193 – 10.69.28.22210.69.28.223
23210.69.28.224/2710.69.28.225 – 10.69.28.25410.69.28.255
23310.69.29.0/2710.69.29.1 – 10.69.29.3010.69.29.31
23410.69.29.32/2710.69.29.33 – 10.69.29.6210.69.29.63
23510.69.29.64/2710.69.29.65 – 10.69.29.9410.69.29.95
23610.69.29.96/2710.69.29.97 – 10.69.29.12610.69.29.127
23710.69.29.128/2710.69.29.129 – 10.69.29.15810.69.29.159
23810.69.29.160/2710.69.29.161 – 10.69.29.19010.69.29.191
23910.69.29.192/2710.69.29.193 – 10.69.29.22210.69.29.223
24010.69.29.224/2710.69.29.225 – 10.69.29.25410.69.29.255
24110.69.30.0/2710.69.30.1 – 10.69.30.3010.69.30.31
24210.69.30.32/2710.69.30.33 – 10.69.30.6210.69.30.63
24310.69.30.64/2710.69.30.65 – 10.69.30.9410.69.30.95
24410.69.30.96/2710.69.30.97 – 10.69.30.12610.69.30.127
24510.69.30.128/2710.69.30.129 – 10.69.30.15810.69.30.159
24610.69.30.160/2710.69.30.161 – 10.69.30.19010.69.30.191
24710.69.30.192/2710.69.30.193 – 10.69.30.22210.69.30.223
24810.69.30.224/2710.69.30.225 – 10.69.30.25410.69.30.255
24910.69.31.0/2710.69.31.1 – 10.69.31.3010.69.31.31
25010.69.31.32/2710.69.31.33 – 10.69.31.6210.69.31.63
25110.69.31.64/2710.69.31.65 – 10.69.31.9410.69.31.95
25210.69.31.96/2710.69.31.97 – 10.69.31.12610.69.31.127
25310.69.31.128/2710.69.31.129 – 10.69.31.15810.69.31.159
25410.69.31.160/2710.69.31.161 – 10.69.31.19010.69.31.191
25510.69.31.192/2710.69.31.193 – 10.69.31.22210.69.31.223
25610.69.31.224/2710.69.31.225 – 10.69.31.25410.69.31.255

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 /16
/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-
/16255.255.0.065,53665,5341
/17255.255.128.032,76832,7662 split →
/18255.255.192.016,38416,3824 split →
/19255.255.224.08,1928,1908 split →
/20255.255.240.04,0964,09416 split →
/21255.255.248.02,0482,04632 split →
/22255.255.252.01,0241,02264 split →
/23255.255.254.0512510128 split →
/24255.255.255.0256254256 split →
/25255.255.255.128128126512 split →
/26255.255.255.19264621,024 split →
/27255.255.255.22432302,048 split →
/28255.255.255.24016144,096 split →
/29255.255.255.248868,192 split →
/30255.255.255.2524216,384 split →
/31255.255.255.2542232,768 split →
/32255.255.255.2551165,536 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 →