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)10.72.52.0/22
network10.72.52.0/22
broadcast10.72.55.255
first host10.72.52.1
last host10.72.55.254
subnet mask255.255.252.0
wildcard0.0.3.255
addresses1,024
usable hosts1,022
classA
ipcalc 10.72.52.0/22
address00001010.01001000.00110100.00000000
subnet mask11111111.11111111.11111100.00000000
network00001010.01001000.00110100.00000000
broadcast00001010.01001000.00110111.11111111
green = network part, grey = host part
hex0x0a483400
decimal172504064
reverse dns0.52.72.10.in-addr.arpa
ipv4-mapped::ffff:a48:3400

/22 split into /29 · 128 subnets

close ×
#networkhost rangebroadcast
110.72.52.0/2910.72.52.1 – 10.72.52.610.72.52.7
210.72.52.8/2910.72.52.9 – 10.72.52.1410.72.52.15
310.72.52.16/2910.72.52.17 – 10.72.52.2210.72.52.23
410.72.52.24/2910.72.52.25 – 10.72.52.3010.72.52.31
510.72.52.32/2910.72.52.33 – 10.72.52.3810.72.52.39
610.72.52.40/2910.72.52.41 – 10.72.52.4610.72.52.47
710.72.52.48/2910.72.52.49 – 10.72.52.5410.72.52.55
810.72.52.56/2910.72.52.57 – 10.72.52.6210.72.52.63
910.72.52.64/2910.72.52.65 – 10.72.52.7010.72.52.71
1010.72.52.72/2910.72.52.73 – 10.72.52.7810.72.52.79
1110.72.52.80/2910.72.52.81 – 10.72.52.8610.72.52.87
1210.72.52.88/2910.72.52.89 – 10.72.52.9410.72.52.95
1310.72.52.96/2910.72.52.97 – 10.72.52.10210.72.52.103
1410.72.52.104/2910.72.52.105 – 10.72.52.11010.72.52.111
1510.72.52.112/2910.72.52.113 – 10.72.52.11810.72.52.119
1610.72.52.120/2910.72.52.121 – 10.72.52.12610.72.52.127
1710.72.52.128/2910.72.52.129 – 10.72.52.13410.72.52.135
1810.72.52.136/2910.72.52.137 – 10.72.52.14210.72.52.143
1910.72.52.144/2910.72.52.145 – 10.72.52.15010.72.52.151
2010.72.52.152/2910.72.52.153 – 10.72.52.15810.72.52.159
2110.72.52.160/2910.72.52.161 – 10.72.52.16610.72.52.167
2210.72.52.168/2910.72.52.169 – 10.72.52.17410.72.52.175
2310.72.52.176/2910.72.52.177 – 10.72.52.18210.72.52.183
2410.72.52.184/2910.72.52.185 – 10.72.52.19010.72.52.191
2510.72.52.192/2910.72.52.193 – 10.72.52.19810.72.52.199
2610.72.52.200/2910.72.52.201 – 10.72.52.20610.72.52.207
2710.72.52.208/2910.72.52.209 – 10.72.52.21410.72.52.215
2810.72.52.216/2910.72.52.217 – 10.72.52.22210.72.52.223
2910.72.52.224/2910.72.52.225 – 10.72.52.23010.72.52.231
3010.72.52.232/2910.72.52.233 – 10.72.52.23810.72.52.239
3110.72.52.240/2910.72.52.241 – 10.72.52.24610.72.52.247
3210.72.52.248/2910.72.52.249 – 10.72.52.25410.72.52.255
3310.72.53.0/2910.72.53.1 – 10.72.53.610.72.53.7
3410.72.53.8/2910.72.53.9 – 10.72.53.1410.72.53.15
3510.72.53.16/2910.72.53.17 – 10.72.53.2210.72.53.23
3610.72.53.24/2910.72.53.25 – 10.72.53.3010.72.53.31
3710.72.53.32/2910.72.53.33 – 10.72.53.3810.72.53.39
3810.72.53.40/2910.72.53.41 – 10.72.53.4610.72.53.47
3910.72.53.48/2910.72.53.49 – 10.72.53.5410.72.53.55
4010.72.53.56/2910.72.53.57 – 10.72.53.6210.72.53.63
4110.72.53.64/2910.72.53.65 – 10.72.53.7010.72.53.71
4210.72.53.72/2910.72.53.73 – 10.72.53.7810.72.53.79
4310.72.53.80/2910.72.53.81 – 10.72.53.8610.72.53.87
4410.72.53.88/2910.72.53.89 – 10.72.53.9410.72.53.95
4510.72.53.96/2910.72.53.97 – 10.72.53.10210.72.53.103
4610.72.53.104/2910.72.53.105 – 10.72.53.11010.72.53.111
4710.72.53.112/2910.72.53.113 – 10.72.53.11810.72.53.119
4810.72.53.120/2910.72.53.121 – 10.72.53.12610.72.53.127
4910.72.53.128/2910.72.53.129 – 10.72.53.13410.72.53.135
5010.72.53.136/2910.72.53.137 – 10.72.53.14210.72.53.143
5110.72.53.144/2910.72.53.145 – 10.72.53.15010.72.53.151
5210.72.53.152/2910.72.53.153 – 10.72.53.15810.72.53.159
5310.72.53.160/2910.72.53.161 – 10.72.53.16610.72.53.167
5410.72.53.168/2910.72.53.169 – 10.72.53.17410.72.53.175
5510.72.53.176/2910.72.53.177 – 10.72.53.18210.72.53.183
5610.72.53.184/2910.72.53.185 – 10.72.53.19010.72.53.191
5710.72.53.192/2910.72.53.193 – 10.72.53.19810.72.53.199
5810.72.53.200/2910.72.53.201 – 10.72.53.20610.72.53.207
5910.72.53.208/2910.72.53.209 – 10.72.53.21410.72.53.215
6010.72.53.216/2910.72.53.217 – 10.72.53.22210.72.53.223
6110.72.53.224/2910.72.53.225 – 10.72.53.23010.72.53.231
6210.72.53.232/2910.72.53.233 – 10.72.53.23810.72.53.239
6310.72.53.240/2910.72.53.241 – 10.72.53.24610.72.53.247
6410.72.53.248/2910.72.53.249 – 10.72.53.25410.72.53.255
6510.72.54.0/2910.72.54.1 – 10.72.54.610.72.54.7
6610.72.54.8/2910.72.54.9 – 10.72.54.1410.72.54.15
6710.72.54.16/2910.72.54.17 – 10.72.54.2210.72.54.23
6810.72.54.24/2910.72.54.25 – 10.72.54.3010.72.54.31
6910.72.54.32/2910.72.54.33 – 10.72.54.3810.72.54.39
7010.72.54.40/2910.72.54.41 – 10.72.54.4610.72.54.47
7110.72.54.48/2910.72.54.49 – 10.72.54.5410.72.54.55
7210.72.54.56/2910.72.54.57 – 10.72.54.6210.72.54.63
7310.72.54.64/2910.72.54.65 – 10.72.54.7010.72.54.71
7410.72.54.72/2910.72.54.73 – 10.72.54.7810.72.54.79
7510.72.54.80/2910.72.54.81 – 10.72.54.8610.72.54.87
7610.72.54.88/2910.72.54.89 – 10.72.54.9410.72.54.95
7710.72.54.96/2910.72.54.97 – 10.72.54.10210.72.54.103
7810.72.54.104/2910.72.54.105 – 10.72.54.11010.72.54.111
7910.72.54.112/2910.72.54.113 – 10.72.54.11810.72.54.119
8010.72.54.120/2910.72.54.121 – 10.72.54.12610.72.54.127
8110.72.54.128/2910.72.54.129 – 10.72.54.13410.72.54.135
8210.72.54.136/2910.72.54.137 – 10.72.54.14210.72.54.143
8310.72.54.144/2910.72.54.145 – 10.72.54.15010.72.54.151
8410.72.54.152/2910.72.54.153 – 10.72.54.15810.72.54.159
8510.72.54.160/2910.72.54.161 – 10.72.54.16610.72.54.167
8610.72.54.168/2910.72.54.169 – 10.72.54.17410.72.54.175
8710.72.54.176/2910.72.54.177 – 10.72.54.18210.72.54.183
8810.72.54.184/2910.72.54.185 – 10.72.54.19010.72.54.191
8910.72.54.192/2910.72.54.193 – 10.72.54.19810.72.54.199
9010.72.54.200/2910.72.54.201 – 10.72.54.20610.72.54.207
9110.72.54.208/2910.72.54.209 – 10.72.54.21410.72.54.215
9210.72.54.216/2910.72.54.217 – 10.72.54.22210.72.54.223
9310.72.54.224/2910.72.54.225 – 10.72.54.23010.72.54.231
9410.72.54.232/2910.72.54.233 – 10.72.54.23810.72.54.239
9510.72.54.240/2910.72.54.241 – 10.72.54.24610.72.54.247
9610.72.54.248/2910.72.54.249 – 10.72.54.25410.72.54.255
9710.72.55.0/2910.72.55.1 – 10.72.55.610.72.55.7
9810.72.55.8/2910.72.55.9 – 10.72.55.1410.72.55.15
9910.72.55.16/2910.72.55.17 – 10.72.55.2210.72.55.23
10010.72.55.24/2910.72.55.25 – 10.72.55.3010.72.55.31
10110.72.55.32/2910.72.55.33 – 10.72.55.3810.72.55.39
10210.72.55.40/2910.72.55.41 – 10.72.55.4610.72.55.47
10310.72.55.48/2910.72.55.49 – 10.72.55.5410.72.55.55
10410.72.55.56/2910.72.55.57 – 10.72.55.6210.72.55.63
10510.72.55.64/2910.72.55.65 – 10.72.55.7010.72.55.71
10610.72.55.72/2910.72.55.73 – 10.72.55.7810.72.55.79
10710.72.55.80/2910.72.55.81 – 10.72.55.8610.72.55.87
10810.72.55.88/2910.72.55.89 – 10.72.55.9410.72.55.95
10910.72.55.96/2910.72.55.97 – 10.72.55.10210.72.55.103
11010.72.55.104/2910.72.55.105 – 10.72.55.11010.72.55.111
11110.72.55.112/2910.72.55.113 – 10.72.55.11810.72.55.119
11210.72.55.120/2910.72.55.121 – 10.72.55.12610.72.55.127
11310.72.55.128/2910.72.55.129 – 10.72.55.13410.72.55.135
11410.72.55.136/2910.72.55.137 – 10.72.55.14210.72.55.143
11510.72.55.144/2910.72.55.145 – 10.72.55.15010.72.55.151
11610.72.55.152/2910.72.55.153 – 10.72.55.15810.72.55.159
11710.72.55.160/2910.72.55.161 – 10.72.55.16610.72.55.167
11810.72.55.168/2910.72.55.169 – 10.72.55.17410.72.55.175
11910.72.55.176/2910.72.55.177 – 10.72.55.18210.72.55.183
12010.72.55.184/2910.72.55.185 – 10.72.55.19010.72.55.191
12110.72.55.192/2910.72.55.193 – 10.72.55.19810.72.55.199
12210.72.55.200/2910.72.55.201 – 10.72.55.20610.72.55.207
12310.72.55.208/2910.72.55.209 – 10.72.55.21410.72.55.215
12410.72.55.216/2910.72.55.217 – 10.72.55.22210.72.55.223
12510.72.55.224/2910.72.55.225 – 10.72.55.23010.72.55.231
12610.72.55.232/2910.72.55.233 – 10.72.55.23810.72.55.239
12710.72.55.240/2910.72.55.241 – 10.72.55.24610.72.55.247
12810.72.55.248/2910.72.55.249 – 10.72.55.25410.72.55.255
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 →