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)10.2.108.0/22
network10.2.108.0/22
broadcast10.2.111.255
first host10.2.108.1
last host10.2.111.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.2.108.0/22
address00001010.00000010.01101100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.00000010.01101100.00000000
broadcast00001010.00000010.01101111.11111111
green = network part, grey = host part
hex0x0a026c00
decimal167930880
reverse dns0.108.2.10.in-addr.arpa
ipv4-mapped::ffff:a02:6c00

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.2.108.0/2910.2.108.1 – 10.2.108.610.2.108.7
210.2.108.8/2910.2.108.9 – 10.2.108.1410.2.108.15
310.2.108.16/2910.2.108.17 – 10.2.108.2210.2.108.23
410.2.108.24/2910.2.108.25 – 10.2.108.3010.2.108.31
510.2.108.32/2910.2.108.33 – 10.2.108.3810.2.108.39
610.2.108.40/2910.2.108.41 – 10.2.108.4610.2.108.47
710.2.108.48/2910.2.108.49 – 10.2.108.5410.2.108.55
810.2.108.56/2910.2.108.57 – 10.2.108.6210.2.108.63
910.2.108.64/2910.2.108.65 – 10.2.108.7010.2.108.71
1010.2.108.72/2910.2.108.73 – 10.2.108.7810.2.108.79
1110.2.108.80/2910.2.108.81 – 10.2.108.8610.2.108.87
1210.2.108.88/2910.2.108.89 – 10.2.108.9410.2.108.95
1310.2.108.96/2910.2.108.97 – 10.2.108.10210.2.108.103
1410.2.108.104/2910.2.108.105 – 10.2.108.11010.2.108.111
1510.2.108.112/2910.2.108.113 – 10.2.108.11810.2.108.119
1610.2.108.120/2910.2.108.121 – 10.2.108.12610.2.108.127
1710.2.108.128/2910.2.108.129 – 10.2.108.13410.2.108.135
1810.2.108.136/2910.2.108.137 – 10.2.108.14210.2.108.143
1910.2.108.144/2910.2.108.145 – 10.2.108.15010.2.108.151
2010.2.108.152/2910.2.108.153 – 10.2.108.15810.2.108.159
2110.2.108.160/2910.2.108.161 – 10.2.108.16610.2.108.167
2210.2.108.168/2910.2.108.169 – 10.2.108.17410.2.108.175
2310.2.108.176/2910.2.108.177 – 10.2.108.18210.2.108.183
2410.2.108.184/2910.2.108.185 – 10.2.108.19010.2.108.191
2510.2.108.192/2910.2.108.193 – 10.2.108.19810.2.108.199
2610.2.108.200/2910.2.108.201 – 10.2.108.20610.2.108.207
2710.2.108.208/2910.2.108.209 – 10.2.108.21410.2.108.215
2810.2.108.216/2910.2.108.217 – 10.2.108.22210.2.108.223
2910.2.108.224/2910.2.108.225 – 10.2.108.23010.2.108.231
3010.2.108.232/2910.2.108.233 – 10.2.108.23810.2.108.239
3110.2.108.240/2910.2.108.241 – 10.2.108.24610.2.108.247
3210.2.108.248/2910.2.108.249 – 10.2.108.25410.2.108.255
3310.2.109.0/2910.2.109.1 – 10.2.109.610.2.109.7
3410.2.109.8/2910.2.109.9 – 10.2.109.1410.2.109.15
3510.2.109.16/2910.2.109.17 – 10.2.109.2210.2.109.23
3610.2.109.24/2910.2.109.25 – 10.2.109.3010.2.109.31
3710.2.109.32/2910.2.109.33 – 10.2.109.3810.2.109.39
3810.2.109.40/2910.2.109.41 – 10.2.109.4610.2.109.47
3910.2.109.48/2910.2.109.49 – 10.2.109.5410.2.109.55
4010.2.109.56/2910.2.109.57 – 10.2.109.6210.2.109.63
4110.2.109.64/2910.2.109.65 – 10.2.109.7010.2.109.71
4210.2.109.72/2910.2.109.73 – 10.2.109.7810.2.109.79
4310.2.109.80/2910.2.109.81 – 10.2.109.8610.2.109.87
4410.2.109.88/2910.2.109.89 – 10.2.109.9410.2.109.95
4510.2.109.96/2910.2.109.97 – 10.2.109.10210.2.109.103
4610.2.109.104/2910.2.109.105 – 10.2.109.11010.2.109.111
4710.2.109.112/2910.2.109.113 – 10.2.109.11810.2.109.119
4810.2.109.120/2910.2.109.121 – 10.2.109.12610.2.109.127
4910.2.109.128/2910.2.109.129 – 10.2.109.13410.2.109.135
5010.2.109.136/2910.2.109.137 – 10.2.109.14210.2.109.143
5110.2.109.144/2910.2.109.145 – 10.2.109.15010.2.109.151
5210.2.109.152/2910.2.109.153 – 10.2.109.15810.2.109.159
5310.2.109.160/2910.2.109.161 – 10.2.109.16610.2.109.167
5410.2.109.168/2910.2.109.169 – 10.2.109.17410.2.109.175
5510.2.109.176/2910.2.109.177 – 10.2.109.18210.2.109.183
5610.2.109.184/2910.2.109.185 – 10.2.109.19010.2.109.191
5710.2.109.192/2910.2.109.193 – 10.2.109.19810.2.109.199
5810.2.109.200/2910.2.109.201 – 10.2.109.20610.2.109.207
5910.2.109.208/2910.2.109.209 – 10.2.109.21410.2.109.215
6010.2.109.216/2910.2.109.217 – 10.2.109.22210.2.109.223
6110.2.109.224/2910.2.109.225 – 10.2.109.23010.2.109.231
6210.2.109.232/2910.2.109.233 – 10.2.109.23810.2.109.239
6310.2.109.240/2910.2.109.241 – 10.2.109.24610.2.109.247
6410.2.109.248/2910.2.109.249 – 10.2.109.25410.2.109.255
6510.2.110.0/2910.2.110.1 – 10.2.110.610.2.110.7
6610.2.110.8/2910.2.110.9 – 10.2.110.1410.2.110.15
6710.2.110.16/2910.2.110.17 – 10.2.110.2210.2.110.23
6810.2.110.24/2910.2.110.25 – 10.2.110.3010.2.110.31
6910.2.110.32/2910.2.110.33 – 10.2.110.3810.2.110.39
7010.2.110.40/2910.2.110.41 – 10.2.110.4610.2.110.47
7110.2.110.48/2910.2.110.49 – 10.2.110.5410.2.110.55
7210.2.110.56/2910.2.110.57 – 10.2.110.6210.2.110.63
7310.2.110.64/2910.2.110.65 – 10.2.110.7010.2.110.71
7410.2.110.72/2910.2.110.73 – 10.2.110.7810.2.110.79
7510.2.110.80/2910.2.110.81 – 10.2.110.8610.2.110.87
7610.2.110.88/2910.2.110.89 – 10.2.110.9410.2.110.95
7710.2.110.96/2910.2.110.97 – 10.2.110.10210.2.110.103
7810.2.110.104/2910.2.110.105 – 10.2.110.11010.2.110.111
7910.2.110.112/2910.2.110.113 – 10.2.110.11810.2.110.119
8010.2.110.120/2910.2.110.121 – 10.2.110.12610.2.110.127
8110.2.110.128/2910.2.110.129 – 10.2.110.13410.2.110.135
8210.2.110.136/2910.2.110.137 – 10.2.110.14210.2.110.143
8310.2.110.144/2910.2.110.145 – 10.2.110.15010.2.110.151
8410.2.110.152/2910.2.110.153 – 10.2.110.15810.2.110.159
8510.2.110.160/2910.2.110.161 – 10.2.110.16610.2.110.167
8610.2.110.168/2910.2.110.169 – 10.2.110.17410.2.110.175
8710.2.110.176/2910.2.110.177 – 10.2.110.18210.2.110.183
8810.2.110.184/2910.2.110.185 – 10.2.110.19010.2.110.191
8910.2.110.192/2910.2.110.193 – 10.2.110.19810.2.110.199
9010.2.110.200/2910.2.110.201 – 10.2.110.20610.2.110.207
9110.2.110.208/2910.2.110.209 – 10.2.110.21410.2.110.215
9210.2.110.216/2910.2.110.217 – 10.2.110.22210.2.110.223
9310.2.110.224/2910.2.110.225 – 10.2.110.23010.2.110.231
9410.2.110.232/2910.2.110.233 – 10.2.110.23810.2.110.239
9510.2.110.240/2910.2.110.241 – 10.2.110.24610.2.110.247
9610.2.110.248/2910.2.110.249 – 10.2.110.25410.2.110.255
9710.2.111.0/2910.2.111.1 – 10.2.111.610.2.111.7
9810.2.111.8/2910.2.111.9 – 10.2.111.1410.2.111.15
9910.2.111.16/2910.2.111.17 – 10.2.111.2210.2.111.23
10010.2.111.24/2910.2.111.25 – 10.2.111.3010.2.111.31
10110.2.111.32/2910.2.111.33 – 10.2.111.3810.2.111.39
10210.2.111.40/2910.2.111.41 – 10.2.111.4610.2.111.47
10310.2.111.48/2910.2.111.49 – 10.2.111.5410.2.111.55
10410.2.111.56/2910.2.111.57 – 10.2.111.6210.2.111.63
10510.2.111.64/2910.2.111.65 – 10.2.111.7010.2.111.71
10610.2.111.72/2910.2.111.73 – 10.2.111.7810.2.111.79
10710.2.111.80/2910.2.111.81 – 10.2.111.8610.2.111.87
10810.2.111.88/2910.2.111.89 – 10.2.111.9410.2.111.95
10910.2.111.96/2910.2.111.97 – 10.2.111.10210.2.111.103
11010.2.111.104/2910.2.111.105 – 10.2.111.11010.2.111.111
11110.2.111.112/2910.2.111.113 – 10.2.111.11810.2.111.119
11210.2.111.120/2910.2.111.121 – 10.2.111.12610.2.111.127
11310.2.111.128/2910.2.111.129 – 10.2.111.13410.2.111.135
11410.2.111.136/2910.2.111.137 – 10.2.111.14210.2.111.143
11510.2.111.144/2910.2.111.145 – 10.2.111.15010.2.111.151
11610.2.111.152/2910.2.111.153 – 10.2.111.15810.2.111.159
11710.2.111.160/2910.2.111.161 – 10.2.111.16610.2.111.167
11810.2.111.168/2910.2.111.169 – 10.2.111.17410.2.111.175
11910.2.111.176/2910.2.111.177 – 10.2.111.18210.2.111.183
12010.2.111.184/2910.2.111.185 – 10.2.111.19010.2.111.191
12110.2.111.192/2910.2.111.193 – 10.2.111.19810.2.111.199
12210.2.111.200/2910.2.111.201 – 10.2.111.20610.2.111.207
12310.2.111.208/2910.2.111.209 – 10.2.111.21410.2.111.215
12410.2.111.216/2910.2.111.217 – 10.2.111.22210.2.111.223
12510.2.111.224/2910.2.111.225 – 10.2.111.23010.2.111.231
12610.2.111.232/2910.2.111.233 – 10.2.111.23810.2.111.239
12710.2.111.240/2910.2.111.241 – 10.2.111.24610.2.111.247
12810.2.111.248/2910.2.111.249 – 10.2.111.25410.2.111.255
01 / table

IPv4 CIDR prefix table.

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

prefixsubnet maskaddresseshostsin your /22
/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-
/20255.255.240.04,0964,094-
/21255.255.248.02,0482,046-
/22255.255.252.01,0241,0221
/23255.255.254.05125102 split →
/24255.255.255.02562544 split →
/25255.255.255.1281281268 split →
/26255.255.255.192646216 split →
/27255.255.255.224323032 split →
/28255.255.255.240161464 split →
/29255.255.255.24886128 split →
/30255.255.255.25242256 split →
/31255.255.255.25422512 split →
/32255.255.255.255111,024 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 →