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)10.45.0.0/16
network10.45.0.0/16
broadcast10.45.255.255
first host10.45.0.1
last host10.45.255.254
subnet mask255.255.0.0
wildcard0.0.255.255
addresses65,536
usable hosts65,534
classA
ipcalc 10.45.0.0/16
address00001010.00101101.00000000.00000000
subnet mask11111111.11111111.00000000.00000000
network00001010.00101101.00000000.00000000
broadcast00001010.00101101.11111111.11111111
green = network part, grey = host part
hex0x0a2d0000
decimal170721280
reverse dns0.0.45.10.in-addr.arpa
ipv4-mapped::ffff:a2d:0

/16 split into /26 · 1,024 subnets

close ×
#networkhost rangebroadcast
110.45.0.0/2610.45.0.1 – 10.45.0.6210.45.0.63
210.45.0.64/2610.45.0.65 – 10.45.0.12610.45.0.127
310.45.0.128/2610.45.0.129 – 10.45.0.19010.45.0.191
410.45.0.192/2610.45.0.193 – 10.45.0.25410.45.0.255
510.45.1.0/2610.45.1.1 – 10.45.1.6210.45.1.63
610.45.1.64/2610.45.1.65 – 10.45.1.12610.45.1.127
710.45.1.128/2610.45.1.129 – 10.45.1.19010.45.1.191
810.45.1.192/2610.45.1.193 – 10.45.1.25410.45.1.255
910.45.2.0/2610.45.2.1 – 10.45.2.6210.45.2.63
1010.45.2.64/2610.45.2.65 – 10.45.2.12610.45.2.127
1110.45.2.128/2610.45.2.129 – 10.45.2.19010.45.2.191
1210.45.2.192/2610.45.2.193 – 10.45.2.25410.45.2.255
1310.45.3.0/2610.45.3.1 – 10.45.3.6210.45.3.63
1410.45.3.64/2610.45.3.65 – 10.45.3.12610.45.3.127
1510.45.3.128/2610.45.3.129 – 10.45.3.19010.45.3.191
1610.45.3.192/2610.45.3.193 – 10.45.3.25410.45.3.255
1710.45.4.0/2610.45.4.1 – 10.45.4.6210.45.4.63
1810.45.4.64/2610.45.4.65 – 10.45.4.12610.45.4.127
1910.45.4.128/2610.45.4.129 – 10.45.4.19010.45.4.191
2010.45.4.192/2610.45.4.193 – 10.45.4.25410.45.4.255
2110.45.5.0/2610.45.5.1 – 10.45.5.6210.45.5.63
2210.45.5.64/2610.45.5.65 – 10.45.5.12610.45.5.127
2310.45.5.128/2610.45.5.129 – 10.45.5.19010.45.5.191
2410.45.5.192/2610.45.5.193 – 10.45.5.25410.45.5.255
2510.45.6.0/2610.45.6.1 – 10.45.6.6210.45.6.63
2610.45.6.64/2610.45.6.65 – 10.45.6.12610.45.6.127
2710.45.6.128/2610.45.6.129 – 10.45.6.19010.45.6.191
2810.45.6.192/2610.45.6.193 – 10.45.6.25410.45.6.255
2910.45.7.0/2610.45.7.1 – 10.45.7.6210.45.7.63
3010.45.7.64/2610.45.7.65 – 10.45.7.12610.45.7.127
3110.45.7.128/2610.45.7.129 – 10.45.7.19010.45.7.191
3210.45.7.192/2610.45.7.193 – 10.45.7.25410.45.7.255
3310.45.8.0/2610.45.8.1 – 10.45.8.6210.45.8.63
3410.45.8.64/2610.45.8.65 – 10.45.8.12610.45.8.127
3510.45.8.128/2610.45.8.129 – 10.45.8.19010.45.8.191
3610.45.8.192/2610.45.8.193 – 10.45.8.25410.45.8.255
3710.45.9.0/2610.45.9.1 – 10.45.9.6210.45.9.63
3810.45.9.64/2610.45.9.65 – 10.45.9.12610.45.9.127
3910.45.9.128/2610.45.9.129 – 10.45.9.19010.45.9.191
4010.45.9.192/2610.45.9.193 – 10.45.9.25410.45.9.255
4110.45.10.0/2610.45.10.1 – 10.45.10.6210.45.10.63
4210.45.10.64/2610.45.10.65 – 10.45.10.12610.45.10.127
4310.45.10.128/2610.45.10.129 – 10.45.10.19010.45.10.191
4410.45.10.192/2610.45.10.193 – 10.45.10.25410.45.10.255
4510.45.11.0/2610.45.11.1 – 10.45.11.6210.45.11.63
4610.45.11.64/2610.45.11.65 – 10.45.11.12610.45.11.127
4710.45.11.128/2610.45.11.129 – 10.45.11.19010.45.11.191
4810.45.11.192/2610.45.11.193 – 10.45.11.25410.45.11.255
4910.45.12.0/2610.45.12.1 – 10.45.12.6210.45.12.63
5010.45.12.64/2610.45.12.65 – 10.45.12.12610.45.12.127
5110.45.12.128/2610.45.12.129 – 10.45.12.19010.45.12.191
5210.45.12.192/2610.45.12.193 – 10.45.12.25410.45.12.255
5310.45.13.0/2610.45.13.1 – 10.45.13.6210.45.13.63
5410.45.13.64/2610.45.13.65 – 10.45.13.12610.45.13.127
5510.45.13.128/2610.45.13.129 – 10.45.13.19010.45.13.191
5610.45.13.192/2610.45.13.193 – 10.45.13.25410.45.13.255
5710.45.14.0/2610.45.14.1 – 10.45.14.6210.45.14.63
5810.45.14.64/2610.45.14.65 – 10.45.14.12610.45.14.127
5910.45.14.128/2610.45.14.129 – 10.45.14.19010.45.14.191
6010.45.14.192/2610.45.14.193 – 10.45.14.25410.45.14.255
6110.45.15.0/2610.45.15.1 – 10.45.15.6210.45.15.63
6210.45.15.64/2610.45.15.65 – 10.45.15.12610.45.15.127
6310.45.15.128/2610.45.15.129 – 10.45.15.19010.45.15.191
6410.45.15.192/2610.45.15.193 – 10.45.15.25410.45.15.255
6510.45.16.0/2610.45.16.1 – 10.45.16.6210.45.16.63
6610.45.16.64/2610.45.16.65 – 10.45.16.12610.45.16.127
6710.45.16.128/2610.45.16.129 – 10.45.16.19010.45.16.191
6810.45.16.192/2610.45.16.193 – 10.45.16.25410.45.16.255
6910.45.17.0/2610.45.17.1 – 10.45.17.6210.45.17.63
7010.45.17.64/2610.45.17.65 – 10.45.17.12610.45.17.127
7110.45.17.128/2610.45.17.129 – 10.45.17.19010.45.17.191
7210.45.17.192/2610.45.17.193 – 10.45.17.25410.45.17.255
7310.45.18.0/2610.45.18.1 – 10.45.18.6210.45.18.63
7410.45.18.64/2610.45.18.65 – 10.45.18.12610.45.18.127
7510.45.18.128/2610.45.18.129 – 10.45.18.19010.45.18.191
7610.45.18.192/2610.45.18.193 – 10.45.18.25410.45.18.255
7710.45.19.0/2610.45.19.1 – 10.45.19.6210.45.19.63
7810.45.19.64/2610.45.19.65 – 10.45.19.12610.45.19.127
7910.45.19.128/2610.45.19.129 – 10.45.19.19010.45.19.191
8010.45.19.192/2610.45.19.193 – 10.45.19.25410.45.19.255
8110.45.20.0/2610.45.20.1 – 10.45.20.6210.45.20.63
8210.45.20.64/2610.45.20.65 – 10.45.20.12610.45.20.127
8310.45.20.128/2610.45.20.129 – 10.45.20.19010.45.20.191
8410.45.20.192/2610.45.20.193 – 10.45.20.25410.45.20.255
8510.45.21.0/2610.45.21.1 – 10.45.21.6210.45.21.63
8610.45.21.64/2610.45.21.65 – 10.45.21.12610.45.21.127
8710.45.21.128/2610.45.21.129 – 10.45.21.19010.45.21.191
8810.45.21.192/2610.45.21.193 – 10.45.21.25410.45.21.255
8910.45.22.0/2610.45.22.1 – 10.45.22.6210.45.22.63
9010.45.22.64/2610.45.22.65 – 10.45.22.12610.45.22.127
9110.45.22.128/2610.45.22.129 – 10.45.22.19010.45.22.191
9210.45.22.192/2610.45.22.193 – 10.45.22.25410.45.22.255
9310.45.23.0/2610.45.23.1 – 10.45.23.6210.45.23.63
9410.45.23.64/2610.45.23.65 – 10.45.23.12610.45.23.127
9510.45.23.128/2610.45.23.129 – 10.45.23.19010.45.23.191
9610.45.23.192/2610.45.23.193 – 10.45.23.25410.45.23.255
9710.45.24.0/2610.45.24.1 – 10.45.24.6210.45.24.63
9810.45.24.64/2610.45.24.65 – 10.45.24.12610.45.24.127
9910.45.24.128/2610.45.24.129 – 10.45.24.19010.45.24.191
10010.45.24.192/2610.45.24.193 – 10.45.24.25410.45.24.255
10110.45.25.0/2610.45.25.1 – 10.45.25.6210.45.25.63
10210.45.25.64/2610.45.25.65 – 10.45.25.12610.45.25.127
10310.45.25.128/2610.45.25.129 – 10.45.25.19010.45.25.191
10410.45.25.192/2610.45.25.193 – 10.45.25.25410.45.25.255
10510.45.26.0/2610.45.26.1 – 10.45.26.6210.45.26.63
10610.45.26.64/2610.45.26.65 – 10.45.26.12610.45.26.127
10710.45.26.128/2610.45.26.129 – 10.45.26.19010.45.26.191
10810.45.26.192/2610.45.26.193 – 10.45.26.25410.45.26.255
10910.45.27.0/2610.45.27.1 – 10.45.27.6210.45.27.63
11010.45.27.64/2610.45.27.65 – 10.45.27.12610.45.27.127
11110.45.27.128/2610.45.27.129 – 10.45.27.19010.45.27.191
11210.45.27.192/2610.45.27.193 – 10.45.27.25410.45.27.255
11310.45.28.0/2610.45.28.1 – 10.45.28.6210.45.28.63
11410.45.28.64/2610.45.28.65 – 10.45.28.12610.45.28.127
11510.45.28.128/2610.45.28.129 – 10.45.28.19010.45.28.191
11610.45.28.192/2610.45.28.193 – 10.45.28.25410.45.28.255
11710.45.29.0/2610.45.29.1 – 10.45.29.6210.45.29.63
11810.45.29.64/2610.45.29.65 – 10.45.29.12610.45.29.127
11910.45.29.128/2610.45.29.129 – 10.45.29.19010.45.29.191
12010.45.29.192/2610.45.29.193 – 10.45.29.25410.45.29.255
12110.45.30.0/2610.45.30.1 – 10.45.30.6210.45.30.63
12210.45.30.64/2610.45.30.65 – 10.45.30.12610.45.30.127
12310.45.30.128/2610.45.30.129 – 10.45.30.19010.45.30.191
12410.45.30.192/2610.45.30.193 – 10.45.30.25410.45.30.255
12510.45.31.0/2610.45.31.1 – 10.45.31.6210.45.31.63
12610.45.31.64/2610.45.31.65 – 10.45.31.12610.45.31.127
12710.45.31.128/2610.45.31.129 – 10.45.31.19010.45.31.191
12810.45.31.192/2610.45.31.193 – 10.45.31.25410.45.31.255
12910.45.32.0/2610.45.32.1 – 10.45.32.6210.45.32.63
13010.45.32.64/2610.45.32.65 – 10.45.32.12610.45.32.127
13110.45.32.128/2610.45.32.129 – 10.45.32.19010.45.32.191
13210.45.32.192/2610.45.32.193 – 10.45.32.25410.45.32.255
13310.45.33.0/2610.45.33.1 – 10.45.33.6210.45.33.63
13410.45.33.64/2610.45.33.65 – 10.45.33.12610.45.33.127
13510.45.33.128/2610.45.33.129 – 10.45.33.19010.45.33.191
13610.45.33.192/2610.45.33.193 – 10.45.33.25410.45.33.255
13710.45.34.0/2610.45.34.1 – 10.45.34.6210.45.34.63
13810.45.34.64/2610.45.34.65 – 10.45.34.12610.45.34.127
13910.45.34.128/2610.45.34.129 – 10.45.34.19010.45.34.191
14010.45.34.192/2610.45.34.193 – 10.45.34.25410.45.34.255
14110.45.35.0/2610.45.35.1 – 10.45.35.6210.45.35.63
14210.45.35.64/2610.45.35.65 – 10.45.35.12610.45.35.127
14310.45.35.128/2610.45.35.129 – 10.45.35.19010.45.35.191
14410.45.35.192/2610.45.35.193 – 10.45.35.25410.45.35.255
14510.45.36.0/2610.45.36.1 – 10.45.36.6210.45.36.63
14610.45.36.64/2610.45.36.65 – 10.45.36.12610.45.36.127
14710.45.36.128/2610.45.36.129 – 10.45.36.19010.45.36.191
14810.45.36.192/2610.45.36.193 – 10.45.36.25410.45.36.255
14910.45.37.0/2610.45.37.1 – 10.45.37.6210.45.37.63
15010.45.37.64/2610.45.37.65 – 10.45.37.12610.45.37.127
15110.45.37.128/2610.45.37.129 – 10.45.37.19010.45.37.191
15210.45.37.192/2610.45.37.193 – 10.45.37.25410.45.37.255
15310.45.38.0/2610.45.38.1 – 10.45.38.6210.45.38.63
15410.45.38.64/2610.45.38.65 – 10.45.38.12610.45.38.127
15510.45.38.128/2610.45.38.129 – 10.45.38.19010.45.38.191
15610.45.38.192/2610.45.38.193 – 10.45.38.25410.45.38.255
15710.45.39.0/2610.45.39.1 – 10.45.39.6210.45.39.63
15810.45.39.64/2610.45.39.65 – 10.45.39.12610.45.39.127
15910.45.39.128/2610.45.39.129 – 10.45.39.19010.45.39.191
16010.45.39.192/2610.45.39.193 – 10.45.39.25410.45.39.255
16110.45.40.0/2610.45.40.1 – 10.45.40.6210.45.40.63
16210.45.40.64/2610.45.40.65 – 10.45.40.12610.45.40.127
16310.45.40.128/2610.45.40.129 – 10.45.40.19010.45.40.191
16410.45.40.192/2610.45.40.193 – 10.45.40.25410.45.40.255
16510.45.41.0/2610.45.41.1 – 10.45.41.6210.45.41.63
16610.45.41.64/2610.45.41.65 – 10.45.41.12610.45.41.127
16710.45.41.128/2610.45.41.129 – 10.45.41.19010.45.41.191
16810.45.41.192/2610.45.41.193 – 10.45.41.25410.45.41.255
16910.45.42.0/2610.45.42.1 – 10.45.42.6210.45.42.63
17010.45.42.64/2610.45.42.65 – 10.45.42.12610.45.42.127
17110.45.42.128/2610.45.42.129 – 10.45.42.19010.45.42.191
17210.45.42.192/2610.45.42.193 – 10.45.42.25410.45.42.255
17310.45.43.0/2610.45.43.1 – 10.45.43.6210.45.43.63
17410.45.43.64/2610.45.43.65 – 10.45.43.12610.45.43.127
17510.45.43.128/2610.45.43.129 – 10.45.43.19010.45.43.191
17610.45.43.192/2610.45.43.193 – 10.45.43.25410.45.43.255
17710.45.44.0/2610.45.44.1 – 10.45.44.6210.45.44.63
17810.45.44.64/2610.45.44.65 – 10.45.44.12610.45.44.127
17910.45.44.128/2610.45.44.129 – 10.45.44.19010.45.44.191
18010.45.44.192/2610.45.44.193 – 10.45.44.25410.45.44.255
18110.45.45.0/2610.45.45.1 – 10.45.45.6210.45.45.63
18210.45.45.64/2610.45.45.65 – 10.45.45.12610.45.45.127
18310.45.45.128/2610.45.45.129 – 10.45.45.19010.45.45.191
18410.45.45.192/2610.45.45.193 – 10.45.45.25410.45.45.255
18510.45.46.0/2610.45.46.1 – 10.45.46.6210.45.46.63
18610.45.46.64/2610.45.46.65 – 10.45.46.12610.45.46.127
18710.45.46.128/2610.45.46.129 – 10.45.46.19010.45.46.191
18810.45.46.192/2610.45.46.193 – 10.45.46.25410.45.46.255
18910.45.47.0/2610.45.47.1 – 10.45.47.6210.45.47.63
19010.45.47.64/2610.45.47.65 – 10.45.47.12610.45.47.127
19110.45.47.128/2610.45.47.129 – 10.45.47.19010.45.47.191
19210.45.47.192/2610.45.47.193 – 10.45.47.25410.45.47.255
19310.45.48.0/2610.45.48.1 – 10.45.48.6210.45.48.63
19410.45.48.64/2610.45.48.65 – 10.45.48.12610.45.48.127
19510.45.48.128/2610.45.48.129 – 10.45.48.19010.45.48.191
19610.45.48.192/2610.45.48.193 – 10.45.48.25410.45.48.255
19710.45.49.0/2610.45.49.1 – 10.45.49.6210.45.49.63
19810.45.49.64/2610.45.49.65 – 10.45.49.12610.45.49.127
19910.45.49.128/2610.45.49.129 – 10.45.49.19010.45.49.191
20010.45.49.192/2610.45.49.193 – 10.45.49.25410.45.49.255
20110.45.50.0/2610.45.50.1 – 10.45.50.6210.45.50.63
20210.45.50.64/2610.45.50.65 – 10.45.50.12610.45.50.127
20310.45.50.128/2610.45.50.129 – 10.45.50.19010.45.50.191
20410.45.50.192/2610.45.50.193 – 10.45.50.25410.45.50.255
20510.45.51.0/2610.45.51.1 – 10.45.51.6210.45.51.63
20610.45.51.64/2610.45.51.65 – 10.45.51.12610.45.51.127
20710.45.51.128/2610.45.51.129 – 10.45.51.19010.45.51.191
20810.45.51.192/2610.45.51.193 – 10.45.51.25410.45.51.255
20910.45.52.0/2610.45.52.1 – 10.45.52.6210.45.52.63
21010.45.52.64/2610.45.52.65 – 10.45.52.12610.45.52.127
21110.45.52.128/2610.45.52.129 – 10.45.52.19010.45.52.191
21210.45.52.192/2610.45.52.193 – 10.45.52.25410.45.52.255
21310.45.53.0/2610.45.53.1 – 10.45.53.6210.45.53.63
21410.45.53.64/2610.45.53.65 – 10.45.53.12610.45.53.127
21510.45.53.128/2610.45.53.129 – 10.45.53.19010.45.53.191
21610.45.53.192/2610.45.53.193 – 10.45.53.25410.45.53.255
21710.45.54.0/2610.45.54.1 – 10.45.54.6210.45.54.63
21810.45.54.64/2610.45.54.65 – 10.45.54.12610.45.54.127
21910.45.54.128/2610.45.54.129 – 10.45.54.19010.45.54.191
22010.45.54.192/2610.45.54.193 – 10.45.54.25410.45.54.255
22110.45.55.0/2610.45.55.1 – 10.45.55.6210.45.55.63
22210.45.55.64/2610.45.55.65 – 10.45.55.12610.45.55.127
22310.45.55.128/2610.45.55.129 – 10.45.55.19010.45.55.191
22410.45.55.192/2610.45.55.193 – 10.45.55.25410.45.55.255
22510.45.56.0/2610.45.56.1 – 10.45.56.6210.45.56.63
22610.45.56.64/2610.45.56.65 – 10.45.56.12610.45.56.127
22710.45.56.128/2610.45.56.129 – 10.45.56.19010.45.56.191
22810.45.56.192/2610.45.56.193 – 10.45.56.25410.45.56.255
22910.45.57.0/2610.45.57.1 – 10.45.57.6210.45.57.63
23010.45.57.64/2610.45.57.65 – 10.45.57.12610.45.57.127
23110.45.57.128/2610.45.57.129 – 10.45.57.19010.45.57.191
23210.45.57.192/2610.45.57.193 – 10.45.57.25410.45.57.255
23310.45.58.0/2610.45.58.1 – 10.45.58.6210.45.58.63
23410.45.58.64/2610.45.58.65 – 10.45.58.12610.45.58.127
23510.45.58.128/2610.45.58.129 – 10.45.58.19010.45.58.191
23610.45.58.192/2610.45.58.193 – 10.45.58.25410.45.58.255
23710.45.59.0/2610.45.59.1 – 10.45.59.6210.45.59.63
23810.45.59.64/2610.45.59.65 – 10.45.59.12610.45.59.127
23910.45.59.128/2610.45.59.129 – 10.45.59.19010.45.59.191
24010.45.59.192/2610.45.59.193 – 10.45.59.25410.45.59.255
24110.45.60.0/2610.45.60.1 – 10.45.60.6210.45.60.63
24210.45.60.64/2610.45.60.65 – 10.45.60.12610.45.60.127
24310.45.60.128/2610.45.60.129 – 10.45.60.19010.45.60.191
24410.45.60.192/2610.45.60.193 – 10.45.60.25410.45.60.255
24510.45.61.0/2610.45.61.1 – 10.45.61.6210.45.61.63
24610.45.61.64/2610.45.61.65 – 10.45.61.12610.45.61.127
24710.45.61.128/2610.45.61.129 – 10.45.61.19010.45.61.191
24810.45.61.192/2610.45.61.193 – 10.45.61.25410.45.61.255
24910.45.62.0/2610.45.62.1 – 10.45.62.6210.45.62.63
25010.45.62.64/2610.45.62.65 – 10.45.62.12610.45.62.127
25110.45.62.128/2610.45.62.129 – 10.45.62.19010.45.62.191
25210.45.62.192/2610.45.62.193 – 10.45.62.25410.45.62.255
25310.45.63.0/2610.45.63.1 – 10.45.63.6210.45.63.63
25410.45.63.64/2610.45.63.65 – 10.45.63.12610.45.63.127
25510.45.63.128/2610.45.63.129 – 10.45.63.19010.45.63.191
25610.45.63.192/2610.45.63.193 – 10.45.63.25410.45.63.255

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 /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 →