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
private IP (RFC 1918)10.167.16.0/20
network10.167.16.0/20
broadcast10.167.31.255
first host10.167.16.1
last host10.167.31.254
subnet mask255.255.240.0
wildcard0.0.15.255
addresses4,096
usable hosts4,094
classA
ipcalc 10.167.16.0/20
address00001010.10100111.00010000.00000000
subnet mask11111111.11111111.11110000.00000000
network00001010.10100111.00010000.00000000
broadcast00001010.10100111.00011111.11111111
green = network part, grey = host part
hex0x0aa71000
decimal178720768
reverse dns0.16.167.10.in-addr.arpa
ipv4-mapped::ffff:aa7:1000

/20 split into /28 · 256 subnets

close ×
#networkhost rangebroadcast
110.167.16.0/2810.167.16.1 – 10.167.16.1410.167.16.15
210.167.16.16/2810.167.16.17 – 10.167.16.3010.167.16.31
310.167.16.32/2810.167.16.33 – 10.167.16.4610.167.16.47
410.167.16.48/2810.167.16.49 – 10.167.16.6210.167.16.63
510.167.16.64/2810.167.16.65 – 10.167.16.7810.167.16.79
610.167.16.80/2810.167.16.81 – 10.167.16.9410.167.16.95
710.167.16.96/2810.167.16.97 – 10.167.16.11010.167.16.111
810.167.16.112/2810.167.16.113 – 10.167.16.12610.167.16.127
910.167.16.128/2810.167.16.129 – 10.167.16.14210.167.16.143
1010.167.16.144/2810.167.16.145 – 10.167.16.15810.167.16.159
1110.167.16.160/2810.167.16.161 – 10.167.16.17410.167.16.175
1210.167.16.176/2810.167.16.177 – 10.167.16.19010.167.16.191
1310.167.16.192/2810.167.16.193 – 10.167.16.20610.167.16.207
1410.167.16.208/2810.167.16.209 – 10.167.16.22210.167.16.223
1510.167.16.224/2810.167.16.225 – 10.167.16.23810.167.16.239
1610.167.16.240/2810.167.16.241 – 10.167.16.25410.167.16.255
1710.167.17.0/2810.167.17.1 – 10.167.17.1410.167.17.15
1810.167.17.16/2810.167.17.17 – 10.167.17.3010.167.17.31
1910.167.17.32/2810.167.17.33 – 10.167.17.4610.167.17.47
2010.167.17.48/2810.167.17.49 – 10.167.17.6210.167.17.63
2110.167.17.64/2810.167.17.65 – 10.167.17.7810.167.17.79
2210.167.17.80/2810.167.17.81 – 10.167.17.9410.167.17.95
2310.167.17.96/2810.167.17.97 – 10.167.17.11010.167.17.111
2410.167.17.112/2810.167.17.113 – 10.167.17.12610.167.17.127
2510.167.17.128/2810.167.17.129 – 10.167.17.14210.167.17.143
2610.167.17.144/2810.167.17.145 – 10.167.17.15810.167.17.159
2710.167.17.160/2810.167.17.161 – 10.167.17.17410.167.17.175
2810.167.17.176/2810.167.17.177 – 10.167.17.19010.167.17.191
2910.167.17.192/2810.167.17.193 – 10.167.17.20610.167.17.207
3010.167.17.208/2810.167.17.209 – 10.167.17.22210.167.17.223
3110.167.17.224/2810.167.17.225 – 10.167.17.23810.167.17.239
3210.167.17.240/2810.167.17.241 – 10.167.17.25410.167.17.255
3310.167.18.0/2810.167.18.1 – 10.167.18.1410.167.18.15
3410.167.18.16/2810.167.18.17 – 10.167.18.3010.167.18.31
3510.167.18.32/2810.167.18.33 – 10.167.18.4610.167.18.47
3610.167.18.48/2810.167.18.49 – 10.167.18.6210.167.18.63
3710.167.18.64/2810.167.18.65 – 10.167.18.7810.167.18.79
3810.167.18.80/2810.167.18.81 – 10.167.18.9410.167.18.95
3910.167.18.96/2810.167.18.97 – 10.167.18.11010.167.18.111
4010.167.18.112/2810.167.18.113 – 10.167.18.12610.167.18.127
4110.167.18.128/2810.167.18.129 – 10.167.18.14210.167.18.143
4210.167.18.144/2810.167.18.145 – 10.167.18.15810.167.18.159
4310.167.18.160/2810.167.18.161 – 10.167.18.17410.167.18.175
4410.167.18.176/2810.167.18.177 – 10.167.18.19010.167.18.191
4510.167.18.192/2810.167.18.193 – 10.167.18.20610.167.18.207
4610.167.18.208/2810.167.18.209 – 10.167.18.22210.167.18.223
4710.167.18.224/2810.167.18.225 – 10.167.18.23810.167.18.239
4810.167.18.240/2810.167.18.241 – 10.167.18.25410.167.18.255
4910.167.19.0/2810.167.19.1 – 10.167.19.1410.167.19.15
5010.167.19.16/2810.167.19.17 – 10.167.19.3010.167.19.31
5110.167.19.32/2810.167.19.33 – 10.167.19.4610.167.19.47
5210.167.19.48/2810.167.19.49 – 10.167.19.6210.167.19.63
5310.167.19.64/2810.167.19.65 – 10.167.19.7810.167.19.79
5410.167.19.80/2810.167.19.81 – 10.167.19.9410.167.19.95
5510.167.19.96/2810.167.19.97 – 10.167.19.11010.167.19.111
5610.167.19.112/2810.167.19.113 – 10.167.19.12610.167.19.127
5710.167.19.128/2810.167.19.129 – 10.167.19.14210.167.19.143
5810.167.19.144/2810.167.19.145 – 10.167.19.15810.167.19.159
5910.167.19.160/2810.167.19.161 – 10.167.19.17410.167.19.175
6010.167.19.176/2810.167.19.177 – 10.167.19.19010.167.19.191
6110.167.19.192/2810.167.19.193 – 10.167.19.20610.167.19.207
6210.167.19.208/2810.167.19.209 – 10.167.19.22210.167.19.223
6310.167.19.224/2810.167.19.225 – 10.167.19.23810.167.19.239
6410.167.19.240/2810.167.19.241 – 10.167.19.25410.167.19.255
6510.167.20.0/2810.167.20.1 – 10.167.20.1410.167.20.15
6610.167.20.16/2810.167.20.17 – 10.167.20.3010.167.20.31
6710.167.20.32/2810.167.20.33 – 10.167.20.4610.167.20.47
6810.167.20.48/2810.167.20.49 – 10.167.20.6210.167.20.63
6910.167.20.64/2810.167.20.65 – 10.167.20.7810.167.20.79
7010.167.20.80/2810.167.20.81 – 10.167.20.9410.167.20.95
7110.167.20.96/2810.167.20.97 – 10.167.20.11010.167.20.111
7210.167.20.112/2810.167.20.113 – 10.167.20.12610.167.20.127
7310.167.20.128/2810.167.20.129 – 10.167.20.14210.167.20.143
7410.167.20.144/2810.167.20.145 – 10.167.20.15810.167.20.159
7510.167.20.160/2810.167.20.161 – 10.167.20.17410.167.20.175
7610.167.20.176/2810.167.20.177 – 10.167.20.19010.167.20.191
7710.167.20.192/2810.167.20.193 – 10.167.20.20610.167.20.207
7810.167.20.208/2810.167.20.209 – 10.167.20.22210.167.20.223
7910.167.20.224/2810.167.20.225 – 10.167.20.23810.167.20.239
8010.167.20.240/2810.167.20.241 – 10.167.20.25410.167.20.255
8110.167.21.0/2810.167.21.1 – 10.167.21.1410.167.21.15
8210.167.21.16/2810.167.21.17 – 10.167.21.3010.167.21.31
8310.167.21.32/2810.167.21.33 – 10.167.21.4610.167.21.47
8410.167.21.48/2810.167.21.49 – 10.167.21.6210.167.21.63
8510.167.21.64/2810.167.21.65 – 10.167.21.7810.167.21.79
8610.167.21.80/2810.167.21.81 – 10.167.21.9410.167.21.95
8710.167.21.96/2810.167.21.97 – 10.167.21.11010.167.21.111
8810.167.21.112/2810.167.21.113 – 10.167.21.12610.167.21.127
8910.167.21.128/2810.167.21.129 – 10.167.21.14210.167.21.143
9010.167.21.144/2810.167.21.145 – 10.167.21.15810.167.21.159
9110.167.21.160/2810.167.21.161 – 10.167.21.17410.167.21.175
9210.167.21.176/2810.167.21.177 – 10.167.21.19010.167.21.191
9310.167.21.192/2810.167.21.193 – 10.167.21.20610.167.21.207
9410.167.21.208/2810.167.21.209 – 10.167.21.22210.167.21.223
9510.167.21.224/2810.167.21.225 – 10.167.21.23810.167.21.239
9610.167.21.240/2810.167.21.241 – 10.167.21.25410.167.21.255
9710.167.22.0/2810.167.22.1 – 10.167.22.1410.167.22.15
9810.167.22.16/2810.167.22.17 – 10.167.22.3010.167.22.31
9910.167.22.32/2810.167.22.33 – 10.167.22.4610.167.22.47
10010.167.22.48/2810.167.22.49 – 10.167.22.6210.167.22.63
10110.167.22.64/2810.167.22.65 – 10.167.22.7810.167.22.79
10210.167.22.80/2810.167.22.81 – 10.167.22.9410.167.22.95
10310.167.22.96/2810.167.22.97 – 10.167.22.11010.167.22.111
10410.167.22.112/2810.167.22.113 – 10.167.22.12610.167.22.127
10510.167.22.128/2810.167.22.129 – 10.167.22.14210.167.22.143
10610.167.22.144/2810.167.22.145 – 10.167.22.15810.167.22.159
10710.167.22.160/2810.167.22.161 – 10.167.22.17410.167.22.175
10810.167.22.176/2810.167.22.177 – 10.167.22.19010.167.22.191
10910.167.22.192/2810.167.22.193 – 10.167.22.20610.167.22.207
11010.167.22.208/2810.167.22.209 – 10.167.22.22210.167.22.223
11110.167.22.224/2810.167.22.225 – 10.167.22.23810.167.22.239
11210.167.22.240/2810.167.22.241 – 10.167.22.25410.167.22.255
11310.167.23.0/2810.167.23.1 – 10.167.23.1410.167.23.15
11410.167.23.16/2810.167.23.17 – 10.167.23.3010.167.23.31
11510.167.23.32/2810.167.23.33 – 10.167.23.4610.167.23.47
11610.167.23.48/2810.167.23.49 – 10.167.23.6210.167.23.63
11710.167.23.64/2810.167.23.65 – 10.167.23.7810.167.23.79
11810.167.23.80/2810.167.23.81 – 10.167.23.9410.167.23.95
11910.167.23.96/2810.167.23.97 – 10.167.23.11010.167.23.111
12010.167.23.112/2810.167.23.113 – 10.167.23.12610.167.23.127
12110.167.23.128/2810.167.23.129 – 10.167.23.14210.167.23.143
12210.167.23.144/2810.167.23.145 – 10.167.23.15810.167.23.159
12310.167.23.160/2810.167.23.161 – 10.167.23.17410.167.23.175
12410.167.23.176/2810.167.23.177 – 10.167.23.19010.167.23.191
12510.167.23.192/2810.167.23.193 – 10.167.23.20610.167.23.207
12610.167.23.208/2810.167.23.209 – 10.167.23.22210.167.23.223
12710.167.23.224/2810.167.23.225 – 10.167.23.23810.167.23.239
12810.167.23.240/2810.167.23.241 – 10.167.23.25410.167.23.255
12910.167.24.0/2810.167.24.1 – 10.167.24.1410.167.24.15
13010.167.24.16/2810.167.24.17 – 10.167.24.3010.167.24.31
13110.167.24.32/2810.167.24.33 – 10.167.24.4610.167.24.47
13210.167.24.48/2810.167.24.49 – 10.167.24.6210.167.24.63
13310.167.24.64/2810.167.24.65 – 10.167.24.7810.167.24.79
13410.167.24.80/2810.167.24.81 – 10.167.24.9410.167.24.95
13510.167.24.96/2810.167.24.97 – 10.167.24.11010.167.24.111
13610.167.24.112/2810.167.24.113 – 10.167.24.12610.167.24.127
13710.167.24.128/2810.167.24.129 – 10.167.24.14210.167.24.143
13810.167.24.144/2810.167.24.145 – 10.167.24.15810.167.24.159
13910.167.24.160/2810.167.24.161 – 10.167.24.17410.167.24.175
14010.167.24.176/2810.167.24.177 – 10.167.24.19010.167.24.191
14110.167.24.192/2810.167.24.193 – 10.167.24.20610.167.24.207
14210.167.24.208/2810.167.24.209 – 10.167.24.22210.167.24.223
14310.167.24.224/2810.167.24.225 – 10.167.24.23810.167.24.239
14410.167.24.240/2810.167.24.241 – 10.167.24.25410.167.24.255
14510.167.25.0/2810.167.25.1 – 10.167.25.1410.167.25.15
14610.167.25.16/2810.167.25.17 – 10.167.25.3010.167.25.31
14710.167.25.32/2810.167.25.33 – 10.167.25.4610.167.25.47
14810.167.25.48/2810.167.25.49 – 10.167.25.6210.167.25.63
14910.167.25.64/2810.167.25.65 – 10.167.25.7810.167.25.79
15010.167.25.80/2810.167.25.81 – 10.167.25.9410.167.25.95
15110.167.25.96/2810.167.25.97 – 10.167.25.11010.167.25.111
15210.167.25.112/2810.167.25.113 – 10.167.25.12610.167.25.127
15310.167.25.128/2810.167.25.129 – 10.167.25.14210.167.25.143
15410.167.25.144/2810.167.25.145 – 10.167.25.15810.167.25.159
15510.167.25.160/2810.167.25.161 – 10.167.25.17410.167.25.175
15610.167.25.176/2810.167.25.177 – 10.167.25.19010.167.25.191
15710.167.25.192/2810.167.25.193 – 10.167.25.20610.167.25.207
15810.167.25.208/2810.167.25.209 – 10.167.25.22210.167.25.223
15910.167.25.224/2810.167.25.225 – 10.167.25.23810.167.25.239
16010.167.25.240/2810.167.25.241 – 10.167.25.25410.167.25.255
16110.167.26.0/2810.167.26.1 – 10.167.26.1410.167.26.15
16210.167.26.16/2810.167.26.17 – 10.167.26.3010.167.26.31
16310.167.26.32/2810.167.26.33 – 10.167.26.4610.167.26.47
16410.167.26.48/2810.167.26.49 – 10.167.26.6210.167.26.63
16510.167.26.64/2810.167.26.65 – 10.167.26.7810.167.26.79
16610.167.26.80/2810.167.26.81 – 10.167.26.9410.167.26.95
16710.167.26.96/2810.167.26.97 – 10.167.26.11010.167.26.111
16810.167.26.112/2810.167.26.113 – 10.167.26.12610.167.26.127
16910.167.26.128/2810.167.26.129 – 10.167.26.14210.167.26.143
17010.167.26.144/2810.167.26.145 – 10.167.26.15810.167.26.159
17110.167.26.160/2810.167.26.161 – 10.167.26.17410.167.26.175
17210.167.26.176/2810.167.26.177 – 10.167.26.19010.167.26.191
17310.167.26.192/2810.167.26.193 – 10.167.26.20610.167.26.207
17410.167.26.208/2810.167.26.209 – 10.167.26.22210.167.26.223
17510.167.26.224/2810.167.26.225 – 10.167.26.23810.167.26.239
17610.167.26.240/2810.167.26.241 – 10.167.26.25410.167.26.255
17710.167.27.0/2810.167.27.1 – 10.167.27.1410.167.27.15
17810.167.27.16/2810.167.27.17 – 10.167.27.3010.167.27.31
17910.167.27.32/2810.167.27.33 – 10.167.27.4610.167.27.47
18010.167.27.48/2810.167.27.49 – 10.167.27.6210.167.27.63
18110.167.27.64/2810.167.27.65 – 10.167.27.7810.167.27.79
18210.167.27.80/2810.167.27.81 – 10.167.27.9410.167.27.95
18310.167.27.96/2810.167.27.97 – 10.167.27.11010.167.27.111
18410.167.27.112/2810.167.27.113 – 10.167.27.12610.167.27.127
18510.167.27.128/2810.167.27.129 – 10.167.27.14210.167.27.143
18610.167.27.144/2810.167.27.145 – 10.167.27.15810.167.27.159
18710.167.27.160/2810.167.27.161 – 10.167.27.17410.167.27.175
18810.167.27.176/2810.167.27.177 – 10.167.27.19010.167.27.191
18910.167.27.192/2810.167.27.193 – 10.167.27.20610.167.27.207
19010.167.27.208/2810.167.27.209 – 10.167.27.22210.167.27.223
19110.167.27.224/2810.167.27.225 – 10.167.27.23810.167.27.239
19210.167.27.240/2810.167.27.241 – 10.167.27.25410.167.27.255
19310.167.28.0/2810.167.28.1 – 10.167.28.1410.167.28.15
19410.167.28.16/2810.167.28.17 – 10.167.28.3010.167.28.31
19510.167.28.32/2810.167.28.33 – 10.167.28.4610.167.28.47
19610.167.28.48/2810.167.28.49 – 10.167.28.6210.167.28.63
19710.167.28.64/2810.167.28.65 – 10.167.28.7810.167.28.79
19810.167.28.80/2810.167.28.81 – 10.167.28.9410.167.28.95
19910.167.28.96/2810.167.28.97 – 10.167.28.11010.167.28.111
20010.167.28.112/2810.167.28.113 – 10.167.28.12610.167.28.127
20110.167.28.128/2810.167.28.129 – 10.167.28.14210.167.28.143
20210.167.28.144/2810.167.28.145 – 10.167.28.15810.167.28.159
20310.167.28.160/2810.167.28.161 – 10.167.28.17410.167.28.175
20410.167.28.176/2810.167.28.177 – 10.167.28.19010.167.28.191
20510.167.28.192/2810.167.28.193 – 10.167.28.20610.167.28.207
20610.167.28.208/2810.167.28.209 – 10.167.28.22210.167.28.223
20710.167.28.224/2810.167.28.225 – 10.167.28.23810.167.28.239
20810.167.28.240/2810.167.28.241 – 10.167.28.25410.167.28.255
20910.167.29.0/2810.167.29.1 – 10.167.29.1410.167.29.15
21010.167.29.16/2810.167.29.17 – 10.167.29.3010.167.29.31
21110.167.29.32/2810.167.29.33 – 10.167.29.4610.167.29.47
21210.167.29.48/2810.167.29.49 – 10.167.29.6210.167.29.63
21310.167.29.64/2810.167.29.65 – 10.167.29.7810.167.29.79
21410.167.29.80/2810.167.29.81 – 10.167.29.9410.167.29.95
21510.167.29.96/2810.167.29.97 – 10.167.29.11010.167.29.111
21610.167.29.112/2810.167.29.113 – 10.167.29.12610.167.29.127
21710.167.29.128/2810.167.29.129 – 10.167.29.14210.167.29.143
21810.167.29.144/2810.167.29.145 – 10.167.29.15810.167.29.159
21910.167.29.160/2810.167.29.161 – 10.167.29.17410.167.29.175
22010.167.29.176/2810.167.29.177 – 10.167.29.19010.167.29.191
22110.167.29.192/2810.167.29.193 – 10.167.29.20610.167.29.207
22210.167.29.208/2810.167.29.209 – 10.167.29.22210.167.29.223
22310.167.29.224/2810.167.29.225 – 10.167.29.23810.167.29.239
22410.167.29.240/2810.167.29.241 – 10.167.29.25410.167.29.255
22510.167.30.0/2810.167.30.1 – 10.167.30.1410.167.30.15
22610.167.30.16/2810.167.30.17 – 10.167.30.3010.167.30.31
22710.167.30.32/2810.167.30.33 – 10.167.30.4610.167.30.47
22810.167.30.48/2810.167.30.49 – 10.167.30.6210.167.30.63
22910.167.30.64/2810.167.30.65 – 10.167.30.7810.167.30.79
23010.167.30.80/2810.167.30.81 – 10.167.30.9410.167.30.95
23110.167.30.96/2810.167.30.97 – 10.167.30.11010.167.30.111
23210.167.30.112/2810.167.30.113 – 10.167.30.12610.167.30.127
23310.167.30.128/2810.167.30.129 – 10.167.30.14210.167.30.143
23410.167.30.144/2810.167.30.145 – 10.167.30.15810.167.30.159
23510.167.30.160/2810.167.30.161 – 10.167.30.17410.167.30.175
23610.167.30.176/2810.167.30.177 – 10.167.30.19010.167.30.191
23710.167.30.192/2810.167.30.193 – 10.167.30.20610.167.30.207
23810.167.30.208/2810.167.30.209 – 10.167.30.22210.167.30.223
23910.167.30.224/2810.167.30.225 – 10.167.30.23810.167.30.239
24010.167.30.240/2810.167.30.241 – 10.167.30.25410.167.30.255
24110.167.31.0/2810.167.31.1 – 10.167.31.1410.167.31.15
24210.167.31.16/2810.167.31.17 – 10.167.31.3010.167.31.31
24310.167.31.32/2810.167.31.33 – 10.167.31.4610.167.31.47
24410.167.31.48/2810.167.31.49 – 10.167.31.6210.167.31.63
24510.167.31.64/2810.167.31.65 – 10.167.31.7810.167.31.79
24610.167.31.80/2810.167.31.81 – 10.167.31.9410.167.31.95
24710.167.31.96/2810.167.31.97 – 10.167.31.11010.167.31.111
24810.167.31.112/2810.167.31.113 – 10.167.31.12610.167.31.127
24910.167.31.128/2810.167.31.129 – 10.167.31.14210.167.31.143
25010.167.31.144/2810.167.31.145 – 10.167.31.15810.167.31.159
25110.167.31.160/2810.167.31.161 – 10.167.31.17410.167.31.175
25210.167.31.176/2810.167.31.177 – 10.167.31.19010.167.31.191
25310.167.31.192/2810.167.31.193 – 10.167.31.20610.167.31.207
25410.167.31.208/2810.167.31.209 – 10.167.31.22210.167.31.223
25510.167.31.224/2810.167.31.225 – 10.167.31.23810.167.31.239
25610.167.31.240/2810.167.31.241 – 10.167.31.25410.167.31.255
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /20
/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-
/20255.255.240.04,0964,0941
/21255.255.248.02,0482,0462 split →
/22255.255.252.01,0241,0224 split →
/23255.255.254.05125108 split →
/24255.255.255.025625416 split →
/25255.255.255.12812812632 split →
/26255.255.255.192646264 split →
/27255.255.255.2243230128 split →
/28255.255.255.2401614256 split →
/29255.255.255.24886512 split →
/30255.255.255.252421,024 split →
/31255.255.255.254222,048 split →
/32255.255.255.255114,096 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 →