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)10.72.96.0/22
network10.72.96.0/22
broadcast10.72.99.255
first host10.72.96.1
last host10.72.99.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.72.96.0/22
address00001010.01001000.01100000.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01001000.01100000.00000000
broadcast00001010.01001000.01100011.11111111
green = network part, grey = host part
hex0x0a486000
decimal172515328
reverse dns0.96.72.10.in-addr.arpa
ipv4-mapped::ffff:a48:6000

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.72.96.0/2910.72.96.1 – 10.72.96.610.72.96.7
210.72.96.8/2910.72.96.9 – 10.72.96.1410.72.96.15
310.72.96.16/2910.72.96.17 – 10.72.96.2210.72.96.23
410.72.96.24/2910.72.96.25 – 10.72.96.3010.72.96.31
510.72.96.32/2910.72.96.33 – 10.72.96.3810.72.96.39
610.72.96.40/2910.72.96.41 – 10.72.96.4610.72.96.47
710.72.96.48/2910.72.96.49 – 10.72.96.5410.72.96.55
810.72.96.56/2910.72.96.57 – 10.72.96.6210.72.96.63
910.72.96.64/2910.72.96.65 – 10.72.96.7010.72.96.71
1010.72.96.72/2910.72.96.73 – 10.72.96.7810.72.96.79
1110.72.96.80/2910.72.96.81 – 10.72.96.8610.72.96.87
1210.72.96.88/2910.72.96.89 – 10.72.96.9410.72.96.95
1310.72.96.96/2910.72.96.97 – 10.72.96.10210.72.96.103
1410.72.96.104/2910.72.96.105 – 10.72.96.11010.72.96.111
1510.72.96.112/2910.72.96.113 – 10.72.96.11810.72.96.119
1610.72.96.120/2910.72.96.121 – 10.72.96.12610.72.96.127
1710.72.96.128/2910.72.96.129 – 10.72.96.13410.72.96.135
1810.72.96.136/2910.72.96.137 – 10.72.96.14210.72.96.143
1910.72.96.144/2910.72.96.145 – 10.72.96.15010.72.96.151
2010.72.96.152/2910.72.96.153 – 10.72.96.15810.72.96.159
2110.72.96.160/2910.72.96.161 – 10.72.96.16610.72.96.167
2210.72.96.168/2910.72.96.169 – 10.72.96.17410.72.96.175
2310.72.96.176/2910.72.96.177 – 10.72.96.18210.72.96.183
2410.72.96.184/2910.72.96.185 – 10.72.96.19010.72.96.191
2510.72.96.192/2910.72.96.193 – 10.72.96.19810.72.96.199
2610.72.96.200/2910.72.96.201 – 10.72.96.20610.72.96.207
2710.72.96.208/2910.72.96.209 – 10.72.96.21410.72.96.215
2810.72.96.216/2910.72.96.217 – 10.72.96.22210.72.96.223
2910.72.96.224/2910.72.96.225 – 10.72.96.23010.72.96.231
3010.72.96.232/2910.72.96.233 – 10.72.96.23810.72.96.239
3110.72.96.240/2910.72.96.241 – 10.72.96.24610.72.96.247
3210.72.96.248/2910.72.96.249 – 10.72.96.25410.72.96.255
3310.72.97.0/2910.72.97.1 – 10.72.97.610.72.97.7
3410.72.97.8/2910.72.97.9 – 10.72.97.1410.72.97.15
3510.72.97.16/2910.72.97.17 – 10.72.97.2210.72.97.23
3610.72.97.24/2910.72.97.25 – 10.72.97.3010.72.97.31
3710.72.97.32/2910.72.97.33 – 10.72.97.3810.72.97.39
3810.72.97.40/2910.72.97.41 – 10.72.97.4610.72.97.47
3910.72.97.48/2910.72.97.49 – 10.72.97.5410.72.97.55
4010.72.97.56/2910.72.97.57 – 10.72.97.6210.72.97.63
4110.72.97.64/2910.72.97.65 – 10.72.97.7010.72.97.71
4210.72.97.72/2910.72.97.73 – 10.72.97.7810.72.97.79
4310.72.97.80/2910.72.97.81 – 10.72.97.8610.72.97.87
4410.72.97.88/2910.72.97.89 – 10.72.97.9410.72.97.95
4510.72.97.96/2910.72.97.97 – 10.72.97.10210.72.97.103
4610.72.97.104/2910.72.97.105 – 10.72.97.11010.72.97.111
4710.72.97.112/2910.72.97.113 – 10.72.97.11810.72.97.119
4810.72.97.120/2910.72.97.121 – 10.72.97.12610.72.97.127
4910.72.97.128/2910.72.97.129 – 10.72.97.13410.72.97.135
5010.72.97.136/2910.72.97.137 – 10.72.97.14210.72.97.143
5110.72.97.144/2910.72.97.145 – 10.72.97.15010.72.97.151
5210.72.97.152/2910.72.97.153 – 10.72.97.15810.72.97.159
5310.72.97.160/2910.72.97.161 – 10.72.97.16610.72.97.167
5410.72.97.168/2910.72.97.169 – 10.72.97.17410.72.97.175
5510.72.97.176/2910.72.97.177 – 10.72.97.18210.72.97.183
5610.72.97.184/2910.72.97.185 – 10.72.97.19010.72.97.191
5710.72.97.192/2910.72.97.193 – 10.72.97.19810.72.97.199
5810.72.97.200/2910.72.97.201 – 10.72.97.20610.72.97.207
5910.72.97.208/2910.72.97.209 – 10.72.97.21410.72.97.215
6010.72.97.216/2910.72.97.217 – 10.72.97.22210.72.97.223
6110.72.97.224/2910.72.97.225 – 10.72.97.23010.72.97.231
6210.72.97.232/2910.72.97.233 – 10.72.97.23810.72.97.239
6310.72.97.240/2910.72.97.241 – 10.72.97.24610.72.97.247
6410.72.97.248/2910.72.97.249 – 10.72.97.25410.72.97.255
6510.72.98.0/2910.72.98.1 – 10.72.98.610.72.98.7
6610.72.98.8/2910.72.98.9 – 10.72.98.1410.72.98.15
6710.72.98.16/2910.72.98.17 – 10.72.98.2210.72.98.23
6810.72.98.24/2910.72.98.25 – 10.72.98.3010.72.98.31
6910.72.98.32/2910.72.98.33 – 10.72.98.3810.72.98.39
7010.72.98.40/2910.72.98.41 – 10.72.98.4610.72.98.47
7110.72.98.48/2910.72.98.49 – 10.72.98.5410.72.98.55
7210.72.98.56/2910.72.98.57 – 10.72.98.6210.72.98.63
7310.72.98.64/2910.72.98.65 – 10.72.98.7010.72.98.71
7410.72.98.72/2910.72.98.73 – 10.72.98.7810.72.98.79
7510.72.98.80/2910.72.98.81 – 10.72.98.8610.72.98.87
7610.72.98.88/2910.72.98.89 – 10.72.98.9410.72.98.95
7710.72.98.96/2910.72.98.97 – 10.72.98.10210.72.98.103
7810.72.98.104/2910.72.98.105 – 10.72.98.11010.72.98.111
7910.72.98.112/2910.72.98.113 – 10.72.98.11810.72.98.119
8010.72.98.120/2910.72.98.121 – 10.72.98.12610.72.98.127
8110.72.98.128/2910.72.98.129 – 10.72.98.13410.72.98.135
8210.72.98.136/2910.72.98.137 – 10.72.98.14210.72.98.143
8310.72.98.144/2910.72.98.145 – 10.72.98.15010.72.98.151
8410.72.98.152/2910.72.98.153 – 10.72.98.15810.72.98.159
8510.72.98.160/2910.72.98.161 – 10.72.98.16610.72.98.167
8610.72.98.168/2910.72.98.169 – 10.72.98.17410.72.98.175
8710.72.98.176/2910.72.98.177 – 10.72.98.18210.72.98.183
8810.72.98.184/2910.72.98.185 – 10.72.98.19010.72.98.191
8910.72.98.192/2910.72.98.193 – 10.72.98.19810.72.98.199
9010.72.98.200/2910.72.98.201 – 10.72.98.20610.72.98.207
9110.72.98.208/2910.72.98.209 – 10.72.98.21410.72.98.215
9210.72.98.216/2910.72.98.217 – 10.72.98.22210.72.98.223
9310.72.98.224/2910.72.98.225 – 10.72.98.23010.72.98.231
9410.72.98.232/2910.72.98.233 – 10.72.98.23810.72.98.239
9510.72.98.240/2910.72.98.241 – 10.72.98.24610.72.98.247
9610.72.98.248/2910.72.98.249 – 10.72.98.25410.72.98.255
9710.72.99.0/2910.72.99.1 – 10.72.99.610.72.99.7
9810.72.99.8/2910.72.99.9 – 10.72.99.1410.72.99.15
9910.72.99.16/2910.72.99.17 – 10.72.99.2210.72.99.23
10010.72.99.24/2910.72.99.25 – 10.72.99.3010.72.99.31
10110.72.99.32/2910.72.99.33 – 10.72.99.3810.72.99.39
10210.72.99.40/2910.72.99.41 – 10.72.99.4610.72.99.47
10310.72.99.48/2910.72.99.49 – 10.72.99.5410.72.99.55
10410.72.99.56/2910.72.99.57 – 10.72.99.6210.72.99.63
10510.72.99.64/2910.72.99.65 – 10.72.99.7010.72.99.71
10610.72.99.72/2910.72.99.73 – 10.72.99.7810.72.99.79
10710.72.99.80/2910.72.99.81 – 10.72.99.8610.72.99.87
10810.72.99.88/2910.72.99.89 – 10.72.99.9410.72.99.95
10910.72.99.96/2910.72.99.97 – 10.72.99.10210.72.99.103
11010.72.99.104/2910.72.99.105 – 10.72.99.11010.72.99.111
11110.72.99.112/2910.72.99.113 – 10.72.99.11810.72.99.119
11210.72.99.120/2910.72.99.121 – 10.72.99.12610.72.99.127
11310.72.99.128/2910.72.99.129 – 10.72.99.13410.72.99.135
11410.72.99.136/2910.72.99.137 – 10.72.99.14210.72.99.143
11510.72.99.144/2910.72.99.145 – 10.72.99.15010.72.99.151
11610.72.99.152/2910.72.99.153 – 10.72.99.15810.72.99.159
11710.72.99.160/2910.72.99.161 – 10.72.99.16610.72.99.167
11810.72.99.168/2910.72.99.169 – 10.72.99.17410.72.99.175
11910.72.99.176/2910.72.99.177 – 10.72.99.18210.72.99.183
12010.72.99.184/2910.72.99.185 – 10.72.99.19010.72.99.191
12110.72.99.192/2910.72.99.193 – 10.72.99.19810.72.99.199
12210.72.99.200/2910.72.99.201 – 10.72.99.20610.72.99.207
12310.72.99.208/2910.72.99.209 – 10.72.99.21410.72.99.215
12410.72.99.216/2910.72.99.217 – 10.72.99.22210.72.99.223
12510.72.99.224/2910.72.99.225 – 10.72.99.23010.72.99.231
12610.72.99.232/2910.72.99.233 – 10.72.99.23810.72.99.239
12710.72.99.240/2910.72.99.241 – 10.72.99.24610.72.99.247
12810.72.99.248/2910.72.99.249 – 10.72.99.25410.72.99.255
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 →